feat(java): add the "Serializable class without 'serialVersionUID'" inspection

Settings › Editor › Inspections › Java gets "Serializable class without 'serialVersionUID'", off by default. When it is on, jdtls's compiler reports classes that implement Serializable without a serialVersionUID field, and Alt+Enter on the class name offers "Add default serial version ID" and "Add generated serial version ID". The severity chosen for the inspection sets ECJ's level: error, warning, or info for the weaker levels.

- Built-in inspections can now be off by default (`defaultEnabled`). The settings tree, group toggles and profile filtering respect this, and an override is stored only when it differs from the default.
- `InspectionSettings::active` resolves the profile in effect in the backend. `configure_java_compiler` writes the matching `missingSerialVersion` level into a compiler-defaults file named after the variant, so a change gives jdtls a new configuration and restarts it.
- Saving inspection settings now reconfigures language servers, as code style settings already did.

Fixes #1199

.github/workflows/language-smoke.yml

@@ -2,6 +2,10 @@ name: Language smoke
 # Everyday code intelligence (completion, go to definition, Find Usages, hover, diagnostics
 # with a quick fix, an intention, formatting, rename) per language, against the language
 # server the app starts by default: crates/ide-host/tests/language_smoke.rs.
+# Then running and testing each fixture through the run store and openidea-server
+# (Run, Run tests, the test tree, Rerun Failed Tests): smoke/run.test.ts; and debugging its
+# entry point with the debugger the IDE installs (breakpoint, frames, variables, evaluate,
+# Step Over, Resume): smoke/debug.test.ts.
 on:
   push:
     branches: [main]
@@ -14,12 +18,19 @@ on:
       - "fixtures/**"
       - "Cargo.toml"
       - "Cargo.lock"
+      - "src/features/run/**"
+      - "src/features/debugger/**"
+      - "src/platform/**"
+      - "smoke/**"
+      - "package.json"
+      - "pnpm-lock.yaml"
       - ".github/workflows/language-smoke.yml"
   workflow_dispatch:
 
 concurrency:
   group: language-smoke-${{ github.ref }}
-  cancel-in-progress: true
+  # A new push supersedes a PR's run; on main every merge runs to the end (and saves the cache).
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 env:
   CARGO_TERM_COLOR: always
@@ -53,9 +64,10 @@ jobs:
           shared-key: language-smoke
           save-if: ${{ github.ref == 'refs/heads/main' && matrix.language == 'rust' }}
 
-      - if: matrix.language == 'typescript'
-        uses: actions/setup-node@v4
-        with: { node-version: 22 }
+      - uses: pnpm/action-setup@v4
+        with: { version: 11 }
+      - uses: actions/setup-node@v4
+        with: { node-version: 22, cache: pnpm }
       - if: matrix.language == 'typescript'
         run: npm install --global "@vtsls/language-server@$VTSLS" "typescript@$TYPESCRIPT"
 
@@ -95,3 +107,10 @@ jobs:
 
       - run: cargo test --locked -p ide-host --test language_smoke --no-run
       - run: cargo test --locked -p ide-host --test language_smoke -- --ignored --exact ${{ matrix.language }}
+
+      - run: pnpm install --frozen-lockfile
+      - run: cargo build --locked -p ide-host --bin openidea-server
+      - run: pnpm smoke smoke/run.test.ts -t "^${{ matrix.language }}$"
+      - run: pnpm smoke smoke/debug.test.ts -t "^${{ matrix.language }}$"
+        # The IDE installs the debugger from GitHub releases: authenticated, against rate limits.
+        env: { GITHUB_TOKEN: "${{ github.token }}" }

AGENTS.md

@@ -69,6 +69,11 @@ Shared agent skills live in `.agents/skills/` (`.claude/skills/` links to them):
 - `cargo nextest run --workspace` (or `cargo test`), `cargo clippy --workspace --all-targets -- -D warnings`, `cargo fmt --all`.
 - `cargo test -p ide-host --test language_smoke -- --ignored --exact <language>` — code intelligence
   on `fixtures/` with that language's real server installed (CI: `Language smoke`, pinned versions).
+- `pnpm smoke smoke/run.test.ts -t <language>` — run and test that language's fixture through the
+  run store and a real `openidea-server` (build it first: `cargo build -p ide-host --bin openidea-server`).
+- `pnpm smoke smoke/debug.test.ts -t <language>` — debug that fixture's entry point the same way, with
+  the debugger the IDE installs (on macOS, CodeLLDB and Delve may need Developer Mode:
+  `sudo DevToolsSecurity -enable`).
 - `pnpm test`, `pnpm e2e`, `pnpm lint`, `pnpm format:check`, `pnpm knip`, `pnpm typecheck`,
   `pnpm gen:bindings`.
 - `pnpm perf` (UI interaction latency / frames / leaks), `pnpm perf:rust` (criterion

Cargo.lock

@@ -4662,12 +4662,14 @@ dependencies = [
 name = "ide-vcs"
 version = "0.1.36"
 dependencies = [
+ "blake3",
  "dunce",
  "encoding_rs",
  "gix",
  "ide-core",
  "ignore",
  "libc",
+ "redb",
  "regex-lite",
  "serde",
  "serde_json",
@@ -4735,6 +4737,7 @@ dependencies = [
  "toml 0.9.12+spec-1.1.0",
  "toml_edit 0.25.17+spec-1.1.0",
  "tracing",
+ "uuid",
  "zip",
 ]
 

THIRD_PARTY_LICENSES.md

@@ -52,6 +52,15 @@ Their original copyright headers and Apache-2.0 licensing are retained.
 
 At render time `src/ui/icons.tsx` may recolour monochrome icons to `currentColor`.
 
+## JetBrains IntelliJ Platform VCS log graph algorithms
+
+`crates/ide-vcs/src/bek.rs` and `src/features/vcs/graph.ts` adapt the Bek ordering,
+graph layout and LinearBek merge linearization algorithms from
+[intellij-community](https://github.com/JetBrains/intellij-community/tree/1d70d5c54302d655758edbd2f808fb8dea8b1764/platform/vcs-log/graph/src/com/intellij/vcs/log/graph)
+(`impl/facade/sort/bek`, `impl/permanent/GraphLayoutBuilder.kt` and
+`linearBek/LinearBekGraphBuilder.java`). Modified from the originals.
+Copyright 2000-2026 JetBrains s.r.o. and contributors. Apache License 2.0 (below).
+
 ## JetBrains IntelliJ Platform diff algorithm
 
 `src/features/vcs/comparison/**` is a TypeScript port of the text comparison of

crates/ide-core/src/inspection_settings.rs

@@ -36,6 +36,23 @@ impl Default for InspectionSettings {
     }
 }
 
+impl InspectionSettings {
+    /// Overrides of the profile in effect; `Default`'s when `profile` names none that exists.
+    pub fn active(&self) -> &BTreeMap<String, InspectionOverride> {
+        let custom = |level: &str, key: &str| match level {
+            "ide" => self.ide_profiles.get(key),
+            "project" => self.project_profiles.get(key),
+            _ => None,
+        };
+        match self.profile.as_str() {
+            "project" => &self.project,
+            id => {
+                id.split_once(':').and_then(|(level, key)| custom(level, key)).map_or(&self.default, |p| &p.overrides)
+            }
+        }
+    }
+}
+
 /// A named profile made with Copy.
 #[derive(Clone, Debug, Default, PartialEq, Eq, Serialize, Deserialize, Type)]
 #[serde(default, rename_all = "camelCase")]
@@ -111,4 +128,20 @@ mod tests {
         let back: InspectionSettings = serde_json::from_str(&serde_json::to_string(&s).unwrap()).unwrap();
         assert_eq!(back, s);
     }
+
+    #[test]
+    fn active_profile_falls_back_to_default() {
+        let off = |id: &str| {
+            BTreeMap::from([(id.to_owned(), InspectionOverride { enabled: Some(false), ..Default::default() })])
+        };
+        let mut s = InspectionSettings { default: off("a"), project: off("b"), ..Default::default() };
+        s.ide_profiles.insert("strict".into(), CustomInspectionProfile { name: "Strict".into(), overrides: off("c") });
+        assert!(s.active().contains_key("a"));
+        s.profile = "project".into();
+        assert!(s.active().contains_key("b"));
+        s.profile = "ide:strict".into();
+        assert!(s.active().contains_key("c"));
+        s.profile = "project:gone".into();
+        assert!(s.active().contains_key("a"));
+    }
 }

crates/ide-core/src/settings.rs

@@ -716,6 +716,12 @@ pub struct PhpSettings {
     /// PHP version the language server checks the code against (`7.4`); empty = from
     /// `composer.json` (`config.platform.php`, else the lowest version `require.php` allows).
     pub language_level: String,
+    /// Folders outside the project whose code the language server indexes too (a platform a
+    /// module extends); absolute, `~/`, or relative to the project.
+    pub include_paths: Vec<String>,
+    /// Intelephense stub sets loaded on top of its defaults and the `ext-*` entries of
+    /// `composer.json` (`wordpress`).
+    pub stubs: Vec<String>,
 }
 
 #[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize, Type)]

crates/ide-dap/src/lib.rs

@@ -589,11 +589,12 @@ impl DebugManager {
         if let Some(command) = custom_command(&spec.command) {
             spec.command = command;
         }
-        // debugpy: run the adapter with the debuggee's interpreter (venvs carry their own debugpy).
+        // debugpy: run the adapter with the debuggee's interpreter (venvs carry their own debugpy),
+        // or with the launcher's when the debuggee runs through a manager (`uv run python`).
         if config.adapter == "debugpy" {
-            let python = match arguments.get("python") {
-                Some(Value::String(p)) => Some(p.clone()),
-                Some(Value::Array(a)) => a.first().and_then(Value::as_str).map(str::to_owned),
+            let python = match (arguments.get("debugLauncherPython"), arguments.get("python")) {
+                (Some(Value::String(p)), _) | (_, Some(Value::String(p))) => Some(p.clone()),
+                (_, Some(Value::Array(a))) => a.first().and_then(Value::as_str).map(str::to_owned),
                 _ => None,
             };
             if let Some(python) = python {
@@ -651,8 +652,19 @@ impl DebugManager {
         {
             arguments["project"] = json!(real);
         }
-        if config.adapter == "codelldb" && arguments.get("sourceLanguages").is_none() {
-            arguments["sourceLanguages"] = json!(["rust"]);
+        if config.adapter == "codelldb" {
+            if arguments.get("sourceLanguages").is_none() {
+                arguments["sourceLanguages"] = json!(["rust"]);
+            }
+            // The Debug Console and Evaluate Expression take expressions, as with every other
+            // debugger; LLDB commands still run with a leading backtick.
+            match arguments.get_mut("_adapterSettings") {
+                None => arguments["_adapterSettings"] = json!({"consoleMode": "evaluate"}),
+                Some(Value::Object(settings)) => {
+                    settings.entry("consoleMode").or_insert_with(|| json!("evaluate"));
+                }
+                Some(_) => {}
+            }
         }
         let port = debug_server.map(|s| s.port);
         self.start_session(id, owner, config.name, config.adapter, None, config.request, arguments, spec, port).await

crates/ide-dap/src/tests.rs

@@ -698,6 +698,37 @@ async fn js_debug_launch_gets_port_and_workspace_folder() {
     assert_eq!(launch["type"], "pwa-node");
 }
 
+/// CodeLLDB treats console input as LLDB commands unless told otherwise: Evaluate Expression
+/// and the Debug Console send expressions, so its console evaluates them. A launch
+/// configuration that picks a console mode keeps it.
+#[tokio::test]
+async fn codelldb_console_evaluates_expressions() {
+    let launch_with = |extra: Value| async move {
+        let h = harness(Script::default());
+        let config = LaunchConfig {
+            name: "demo".into(),
+            adapter: "codelldb".into(),
+            request: "launch".into(),
+            program: Some("/p/target/debug/demo".into()),
+            args: vec![],
+            cwd: Some("/p".into()),
+            env: BTreeMap::new(),
+            extra_json: Some(extra.to_string()),
+        };
+        h.start(config).await.unwrap();
+        h.request("launch")["arguments"].clone()
+    };
+    let launch = launch_with(json!({})).await;
+    assert_eq!(launch["_adapterSettings"]["consoleMode"], "evaluate");
+    assert_eq!(launch["sourceLanguages"], json!(["rust"]));
+
+    let launch =
+        launch_with(json!({"_adapterSettings": {"consoleMode": "commands", "showDisassembly": "never"}})).await;
+    assert_eq!(launch["_adapterSettings"], json!({"consoleMode": "commands", "showDisassembly": "never"}));
+    let launch = launch_with(json!({"_adapterSettings": {"showDisassembly": "never"}})).await;
+    assert_eq!(launch["_adapterSettings"], json!({"consoleMode": "evaluate", "showDisassembly": "never"}));
+}
+
 /// An adapter that is already listening (java-debug inside jdtls): the client
 /// connects over TCP to the `debugServer` port instead of spawning anything.
 #[tokio::test]

crates/ide-host/src/lib.rs

@@ -79,6 +79,7 @@ pub struct Host {
     pub runtime: tokio::runtime::Handle,
     /// One project per window, keyed by window label.
     projects: RwLock<HashMap<String, Arc<Project>>>,
+    pub(crate) external_logs: RwLock<HashMap<String, Vec<Arc<ide_vcs::Repo>>>>,
     requests: requests::Requests,
     project_requests: RwLock<HashMap<String, Vec<RequestId>>>,
 }
@@ -122,6 +123,7 @@ impl Host {
             owner,
             runtime,
             projects: RwLock::default(),
+            external_logs: RwLock::default(),
             requests: Default::default(),
             project_requests: RwLock::default(),
         };
@@ -178,6 +180,10 @@ impl Host {
     }
 
     pub fn close_project(&self, window: &str) {
+        self.external_logs.write().remove(self.owner_window(window));
+        for request in self.project_requests.write().remove(self.owner_window(window)).unwrap_or_default() {
+            self.cancel_request(request);
+        }
         let project = self.projects.write().remove(window);
         if let Some(project) = project {
             if !project.light {
@@ -193,9 +199,6 @@ impl Host {
             // asked for, its runs, its shells and its debug sessions — and the language
             // servers finish shutting down before the window is gone, as IDEA closes a
             // project's processes.
-            for request in self.project_requests.write().remove(self.owner_window(window)).unwrap_or_default() {
-                self.cancel_request(request);
-            }
             self.processes.kill_project(&project.root);
             self.terminals.kill_key(self.owner_window(window));
             self.shutdown_project_workers_blocking(
@@ -311,14 +314,20 @@ impl Host {
     }
 
     pub fn begin_project_request(&self, window: &str, id: RequestId) -> CancellationToken {
-        let token = self.begin_request(id);
-        self.project_requests.write().entry(self.owner_window(window).to_owned()).or_default().push(id);
+        let token = self.begin_project_read_request(window, id);
         if self.project(window).is_ok_and(|p| !p.is_trusted()) {
             token.cancel();
         }
         token
     }
 
+    /// Read-only work remains cancellable/disposed with its window in restricted projects.
+    pub fn begin_project_read_request(&self, window: &str, id: RequestId) -> CancellationToken {
+        let token = self.begin_request(id);
+        self.project_requests.write().entry(self.owner_window(window).to_owned()).or_default().push(id);
+        token
+    }
+
     pub fn end_request(&self, id: RequestId) {
         for ids in self.project_requests.write().values_mut() {
             ids.retain(|entry| *entry != id);

crates/ide-host/src/ops/doc/commands.rs

@@ -18,7 +18,7 @@ pub async fn blocking<T: Send + 'static>(f: impl FnOnce() -> IdeResult<T> + Send
 /// editor buffer, so syntax features and language-server requests work in it.
 pub async fn doc_open_virtual(host: &Host, window: &str, uri: String) -> IdeResult<DocumentInfo> {
     let project = host.project(window)?;
-    let vd = project.lsp.virtual_document(&uri).await?;
+    let vd = crate::ops::lsp::lsp_virtual_document(host, window, uri).await?;
     blocking(move || project.documents.open_virtual(&vd.uri, vd.language_id, &vd.text)).await
 }
 

crates/ide-host/src/ops/fs.rs

@@ -137,16 +137,23 @@ pub fn set_writable(host: &Host, window: &str, path: PathBuf, writable: bool) ->
 pub async fn delete(host: &Host, window: &str, path: PathBuf) -> IdeResult<()> {
     let history = host.project(window).ok().map(|p| p.history.clone());
     host.blocking(move || {
+        let paths = ide_workspace::file_ops::deletion_paths(&path)?;
         if let Some(h) = history {
-            h.record_deletion(&path, DELETE_SNAPSHOT_LIMIT);
+            for p in paths {
+                h.record_deletion(&p, DELETE_SNAPSHOT_LIMIT);
+            }
         }
-        ide_vfs::delete(&path)
+        ide_workspace::file_ops::delete(&path)
     })
     .await
 }
 
 pub async fn copy(host: &Host, from: PathBuf, to: PathBuf) -> IdeResult<()> {
-    host.blocking(move || ide_vfs::copy(&from, &to)).await
+    host.blocking(move || ide_workspace::file_ops::copy(&from, &to)).await
+}
+
+pub async fn rename(host: &Host, from: PathBuf, to: PathBuf) -> IdeResult<()> {
+    host.blocking(move || ide_workspace::file_ops::rename(&from, &to)).await
 }
 
 /// Reads a text file without opening it as a document; prefers the unsaved buffer.

crates/ide-host/src/ops/lsp.rs

@@ -260,6 +260,9 @@ pub async fn lsp_implementations(
 /// Contents of a read-only language-server document, including JDT library
 /// classes and disk class files. Cached per project.
 pub async fn lsp_virtual_document(host: &Host, window: &str, uri: String) -> IdeResult<VirtualDocument> {
+    if uri.starts_with("git-revision:") {
+        return crate::ops::vcs::revision_virtual_document(host, window, &uri).await;
+    }
     host.project(window)?.lsp.virtual_document(&uri).await
 }
 
@@ -438,12 +441,30 @@ pub async fn lsp_apply_code_action(host: &Host, window: &str, doc: DocId, action
         let edit = edit.clone();
         blocking(move || apply_edit(&documents, &edit)).await?;
     }
-    if let Some(command) = action.command {
+    if let Some(command) = action.command
+        && !(action.edit.is_some() && is_client_follow_up(&project, doc, None, &command).await)
+    {
         project.lsp.execute_command(doc, command).await?;
     }
     Ok(())
 }
 
+/// A command after a code action's edit that no server provides: what other editors'
+/// extensions do once the edit is applied (vtsls' `_typescript.didOrganizeImports`). The edit
+/// is the action; there is nothing to run.
+async fn is_client_follow_up(
+    project: &crate::project::Project,
+    doc: DocId,
+    server: Option<ide_core::ServerId>,
+    command: &Command,
+) -> bool {
+    let provided = project.lsp.provides_command(doc, server, &command.command).await;
+    if !provided {
+        tracing::debug!("skipping `{}` after the code action's edit: no server provides it", command.command);
+    }
+    !provided
+}
+
 pub async fn lsp_prepare_rename(host: &Host, window: &str, doc: DocId, pos: Pos) -> IdeResult<Option<Range>> {
     host.project(window)?.lsp.prepare_rename(doc, pos).await
 }
@@ -676,6 +697,7 @@ pub async fn lsp_execute_code_action(
         if cancel.is_cancelled() {
             return Err(ide_core::IdeError::cancelled());
         }
+        let edited = action.edit.is_some();
         if let Some(edit) = action.edit {
             let documents = project.documents.clone();
             tokio::task::spawn_blocking(move || apply_edit(&documents, &edit))
@@ -683,6 +705,9 @@ pub async fn lsp_execute_code_action(
                 .map_err(|e| ide_core::IdeError::internal(e.to_string()))??;
         }
         match action.command {
+            Some(command) if edited && is_client_follow_up(&project, doc, Some(action.server), &command).await => {
+                Ok(Vec::new())
+            }
             Some(command) => project
                 .lsp
                 .execute_action_command(doc, action.server, command, answers, cancel)

crates/ide-host/src/ops/nav.rs

@@ -3,7 +3,7 @@ use crate::Host;
 use crate::Project;
 use crate::rpc::Dispatcher;
 use ide_core::{DocId, IdeResult, IpcPath, Location, Pos};
-use ide_index::{FileMatch, IndexStatus, SymbolFilter, SymbolMatch};
+use ide_index::{ExtensionCount, FileMatch, IndexStatus, SymbolFilter, SymbolMatch};
 use ide_language::{FileReference, WebReference};
 use ide_workspace::file_refs::{self, PathCompletion};
 use serde::{Deserialize, Serialize};
@@ -32,6 +32,11 @@ pub fn index_status(host: &Host, window: &str) -> IdeResult<IndexStatus> {
     Ok(host.project(window)?.index.status())
 }
 
+/// The project's file extensions, most common first.
+pub fn index_file_extensions(host: &Host, window: &str) -> IdeResult<Vec<ExtensionCount>> {
+    Ok(host.project(window)?.index.file_extensions())
+}
+
 pub fn find_files(host: &Host, window: &str, query: String, limit: u32) -> IdeResult<Vec<FileMatch>> {
     Ok(host.project(window)?.index.find_files(&query, limit as usize))
 }
@@ -160,6 +165,7 @@ pub async fn web_unresolved_references(host: &Host, window: &str, doc: DocId) ->
 /// Commands of this module the remote server answers.
 pub(crate) fn register(d: &mut Dispatcher) {
     d.add("index_status", |c| async move { index_status(&c.host, &c.window) });
+    d.add("index_file_extensions", |c| async move { index_file_extensions(&c.host, &c.window) });
     d.add("find_files", |c| async move { find_files(&c.host, &c.window, c.arg("query")?, c.arg("limit")?) });
     d.add("find_dirs", |c| async move { find_dirs(&c.host, &c.window, c.arg("query")?, c.arg("limit")?) });
     d.add("find_symbols", |c| async move {

crates/ide-host/src/ops/project.rs

@@ -17,6 +17,8 @@ pub struct ProjectInfo {
     pub settings: Settings,
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub workspace: Option<ide_workspace::workspace::Workspace>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub unity: Option<ide_workspace::unity::UnityProjectInfo>,
 }
 
 pub fn info(project: &Project) -> ProjectInfo {
@@ -33,6 +35,7 @@ pub fn info(project: &Project) -> ProjectInfo {
         settings,
         root: project.root.clone().into(),
         workspace: ide_workspace::workspace::Workspace::load(&project.root).ok().flatten(),
+        unity: ide_workspace::unity::detect(&project.root),
     }
 }
 
@@ -172,7 +175,12 @@ pub fn set_settings(
         host.apply_proxy();
     }
     // A new interpreter / toolchain / server executable restarts the language servers it affects.
-    let code_style = key == "editor" || key == "editor.codeStyle" || key.starts_with("editor.codeStyle.");
+    // So do inspections that are compiler options (`ide-sdk` `configure_java_compiler`).
+    let code_style = key == "editor"
+        || key == "editor.codeStyle"
+        || key.starts_with("editor.codeStyle.")
+        || key == "inspections"
+        || key.starts_with("inspections.");
     let toolchain = ["languages", "tools", "languageServers", "projectStructure"]
         .iter()
         .any(|k| key == *k || key.starts_with(&format!("{k}.")));

crates/ide-host/src/ops/run/commands.rs

@@ -142,6 +142,21 @@ pub async fn run_gradle_jvm_args_script(_host: &Host, _window: &str, jvm_args: V
     .map_err(|e| IdeError::internal(e.to_string()))?
 }
 
+/// Writes one of the IDE's Gradle init scripts (`text`; the file is named `<name>-<hash>`) on
+/// the machine that runs the build, for `--init-script`, and returns its path.
+pub async fn run_gradle_init_script(_host: &Host, _window: &str, name: String, text: String) -> IdeResult<String> {
+    if name.is_empty() || !name.bytes().all(|b| b.is_ascii_alphanumeric() || b == b'-') {
+        return Err(IdeError::invalid(format!("invalid init script name {name:?}")));
+    }
+    tokio::task::spawn_blocking(move || {
+        ide_run::gradle_jvm::write_script(&ide_run::gradle_jvm::default_dir(), &name, &text)
+            .map(|p| p.to_string_lossy().into_owned())
+            .map_err(|e| IdeError::internal(format!("cannot write the Gradle init script: {e}")))
+    })
+    .await
+    .map_err(|e| IdeError::internal(e.to_string()))?
+}
+
 /// Results from the JUnit XML reports (Surefire, Failsafe, Gradle) of the module at
 /// `module` (relative to the project root) written since `since_ms` (Unix epoch, ms).
 pub async fn run_test_reports(
@@ -308,6 +323,9 @@ pub(crate) fn register(d: &mut Dispatcher) {
     d.add("run_gradle_jvm_args_script", |c| async move {
         run_gradle_jvm_args_script(&c.host, &c.window, c.arg("jvmArgs")?).await
     });
+    d.add("run_gradle_init_script", |c| async move {
+        run_gradle_init_script(&c.host, &c.window, c.arg("name")?, c.arg("text")?).await
+    });
     d.add("run_test_reports", |c| async move {
         run_test_reports(&c.host, &c.window, c.arg("module")?, c.arg("sinceMs")?).await
     });

crates/ide-host/src/ops/sdk.rs

@@ -34,6 +34,42 @@ pub fn sdk_python_effective(host: &Host, window: &str) -> IdeResult<Option<ide_c
     Ok(ide_sdk::apply::python_interpreter(&project.root, &project.settings.effective()).map(Into::into))
 }
 
+/// The PHP language level of the project `path` belongs to (a workspace member, by path, as
+/// the language server configuration picks it).
+#[derive(Clone, Debug, serde::Serialize, specta::Type)]
+#[serde(rename_all = "camelCase")]
+pub struct PhpLanguageLevels {
+    /// The one Intelephense checks against; `None`: its default.
+    pub effective: Option<ide_sdk::php::PhpLanguageLevel>,
+    /// The one Auto picks, from `composer.json`.
+    pub auto: Option<ide_sdk::php::PhpLanguageLevel>,
+    /// The workspace member `path` belongs to: its own settings choose the level, not the
+    /// workspace's. `None`: the opened project.
+    pub member: Option<ide_core::IpcPath>,
+}
+
+pub async fn sdk_php_language_level(host: &Host, window: &str, path: PathBuf) -> IdeResult<PhpLanguageLevels> {
+    let project = host.project(window)?;
+    let (project_root, project_settings) = (project.root.clone(), project.settings.effective());
+    let config_dir = host.config_dir.clone();
+    tokio::task::spawn_blocking(move || {
+        let member = ide_workspace::workspace::Workspace::load(&project_root).ok().flatten().and_then(|w| {
+            w.projects.into_iter().filter(|p| path.starts_with(p)).max_by_key(|p| p.components().count())
+        });
+        let (root, settings) = match &member {
+            Some(member) => (member, ide_workspace::SettingsStore::load(&config_dir, Some(member)).effective()),
+            None => (&project_root, project_settings),
+        };
+        PhpLanguageLevels {
+            effective: ide_sdk::php::language_level(root, &settings),
+            auto: ide_sdk::php::composer_level(root),
+            member: member.map(ide_core::IpcPath),
+        }
+    })
+    .await
+    .map_err(join_err)
+}
+
 /// SDK / library source folders shown under "External Libraries" in the Project view,
 /// with the Maven / Gradle dependency jars of the build model.
 pub async fn sdk_project_libraries(host: &Host, window: &str) -> IdeResult<Vec<ide_sdk::libraries::LibraryGroup>> {
@@ -144,6 +180,10 @@ pub async fn sdk_python_pip(
 pub(crate) fn register(d: &mut Dispatcher) {
     d.add("sdk_detect", |c| async move { sdk_detect(&c.host, &c.window, c.arg("kind")?).await });
     d.add("sdk_python_effective", |c| async move { sdk_python_effective(&c.host, &c.window) });
+    d.add(
+        "sdk_php_language_level",
+        |c| async move { sdk_php_language_level(&c.host, &c.window, c.arg("path")?).await },
+    );
     d.add("sdk_project_libraries", |c| async move { sdk_project_libraries(&c.host, &c.window).await });
     d.add("sdk_locate_tools", |c| async move {
         sdk_locate_tools(&c.host, &c.window, c.arg("names")?, c.arg("near")?).await

crates/ide-host/src/ops/vcs/commands.rs

@@ -12,6 +12,76 @@ use std::path::{Path, PathBuf};
 
 use crate::apply_git_executable;
 
+/// Read-only repository access also works in a standalone log window.
+struct LogAccess {
+    project: Option<std::sync::Arc<Project>>,
+    external: Option<std::sync::Arc<Repo>>,
+    cache: PathBuf,
+}
+
+/// Immutable Git objects exposed through the editor's ordinary read-only VFS.
+pub async fn revision_virtual_document(
+    host: &Host,
+    window: &str,
+    uri: &str,
+) -> IdeResult<ide_lsp::types::VirtualDocument> {
+    #[derive(Deserialize)]
+    struct Target {
+        repo: PathBuf,
+        revision: String,
+        path: PathBuf,
+    }
+    let encoded = uri
+        .strip_prefix("git-revision:")
+        .and_then(|s| s.split('/').next())
+        .ok_or_else(|| ide_core::IdeError::invalid("invalid Git revision URI"))?;
+    if encoded.len() > 32768 || encoded.len() % 2 != 0 || !encoded.bytes().all(|b| b.is_ascii_hexdigit()) {
+        return Err(ide_core::IdeError::invalid("invalid Git revision URI"));
+    }
+    let bytes = (0..encoded.len())
+        .step_by(2)
+        .map(|i| {
+            u8::from_str_radix(&encoded[i..i + 2], 16)
+                .map_err(|_| ide_core::IdeError::invalid("invalid Git revision URI"))
+        })
+        .collect::<IdeResult<Vec<_>>>()?;
+    let target: Target = serde_json::from_slice(&bytes).map_err(|e| ide_core::IdeError::invalid(e.to_string()))?;
+    let path = target.repo.join(&target.path);
+    let text = vcs_file_at(host, window, path, Some(target.revision.clone()))
+        .await?
+        .ok_or_else(|| ide_core::IdeError::not_found("file is absent at this revision"))?;
+    Ok(ide_lsp::types::VirtualDocument {
+        uri: uri.into(),
+        language_id: host.languages.detect(&target.path, text.lines().next()),
+        text,
+        title: target.path.file_name().unwrap_or_default().to_string_lossy().into_owned(),
+        description: Some(format!("{} · {}", target.repo.display(), target.revision)),
+        decompiled: false,
+    })
+}
+impl LogAccess {
+    fn new(host: &Host, window: &str, at: Option<&Path>) -> Self {
+        let project = host.project(window).ok();
+        let external = host
+            .external_logs
+            .read()
+            .get(host.owner_window(window))
+            .and_then(|rs| rs.iter().find(|r| Some(r.root()) == at).cloned())
+            .filter(|repo| project.as_ref().is_none_or(|p| p.repos().at_root(repo.root()).is_none()));
+        Self { project, external, cache: host.local_data_dir.join("cache/git-log") }
+    }
+    fn with_log_repo_at<T>(&self, at: Option<&Path>, f: impl FnOnce(&Repo) -> IdeResult<T>) -> IdeResult<T> {
+        if let Some(repo) = &self.external {
+            repo.enable_log_index(&self.cache);
+            return f(repo);
+        }
+        self.project
+            .as_ref()
+            .ok_or_else(|| ide_core::IdeError::unavailable("external Git log is not open"))?
+            .with_log_repo_at(at, f)
+    }
+}
+
 /// A repository of the project (IDEA's VCS root).
 #[derive(Serialize, Deserialize, Type)]
 #[serde(rename_all = "camelCase")]
@@ -182,8 +252,8 @@ pub fn vcs_roots(host: &Host, window: &str) -> IdeResult<Vec<VcsRoot>> {
 }
 
 pub async fn vcs_branch_info(host: &Host, window: &str, repo: Option<PathBuf>) -> IdeResult<BranchInfo> {
-    let project = host.project(window)?;
-    blocking(move || project.with_repo_at(repo.as_deref(), |r| r.branch_info())).await
+    let project = LogAccess::new(host, window, repo.as_deref());
+    blocking(move || project.with_log_repo_at(repo.as_deref(), |r| r.branch_info())).await
 }
 
 /// Gutter change markers for a file, computed against its current (unsaved) text.
@@ -197,9 +267,21 @@ pub async fn vcs_line_hunks(host: &Host, window: &str, path: PathBuf) -> IdeResu
 }
 
 pub async fn vcs_file_at(host: &Host, window: &str, path: PathBuf, rev: Option<String>) -> IdeResult<Option<String>> {
-    let project = host.project(window)?;
+    let project = host.project(window).ok();
+    let external = host.external_logs.read().get(host.owner_window(window)).and_then(|rs| {
+        rs.iter().filter(|r| path.starts_with(r.root())).max_by_key(|r| r.root().components().count()).cloned()
+    });
     blocking(move || {
-        project.with_repo_of(&path, |r| r.file_at(&path, rev.as_deref(), project.vcs_encoding(&path, rev.as_deref())?))
+        if let Some(project) = project {
+            return project.with_log_repo_of(&path, |r| {
+                r.file_at(&path, rev.as_deref(), project.vcs_encoding(&path, rev.as_deref())?)
+            });
+        }
+        external.ok_or_else(|| ide_core::IdeError::unavailable("external Git log is not open"))?.file_at(
+            &path,
+            rev.as_deref(),
+            encoding_rs::UTF_8,
+        )
     })
     .await
 }
@@ -246,8 +328,124 @@ pub async fn vcs_block_history(
 }
 
 pub async fn vcs_log(host: &Host, window: &str, repo: Option<PathBuf>, query: LogQuery) -> IdeResult<Vec<Commit>> {
-    let project = host.project(window)?;
-    blocking(move || project.with_repo_at(repo.as_deref(), |r| r.log(&query))).await
+    let project = LogAccess::new(host, window, repo.as_deref());
+    let request = query.request;
+    let cancel =
+        request.map_or_else(ide_core::CancellationToken::new, |id| host.begin_project_read_request(window, id));
+    let result = blocking(move || {
+        project.with_log_repo_at(repo.as_deref(), |r| {
+            r.enable_log_index(&project.cache);
+            r.log_cancellable(&query, &cancel)
+        })
+    })
+    .await;
+    if let Some(id) = request {
+        host.end_request(id);
+    }
+    result
+}
+
+pub async fn vcs_log_refs(
+    host: &Host,
+    window: &str,
+    repo: Option<PathBuf>,
+) -> IdeResult<std::collections::BTreeMap<String, String>> {
+    let project = LogAccess::new(host, window, repo.as_deref());
+    blocking(move || project.with_log_repo_at(repo.as_deref(), |r| r.log_refs())).await
+}
+
+pub async fn vcs_log_users(host: &Host, window: &str, repo: Option<PathBuf>) -> IdeResult<Vec<String>> {
+    let project = LogAccess::new(host, window, repo.as_deref());
+    blocking(move || project.with_log_repo_at(repo.as_deref(), |r| r.log_users())).await
+}
+
+pub async fn vcs_open_external_log(host: &Host, window: &str, path: PathBuf) -> IdeResult<ide_core::IpcPath> {
+    let path = dunce::canonicalize(path)?;
+    let repo = Repo::discover(&path)?.ok_or_else(|| ide_core::IdeError::unavailable("folder is not a Git worktree"))?;
+    let root = repo.root().to_path_buf();
+    repo.set_execution_allowed(false);
+    repo.enable_log_index(&host.local_data_dir.join("cache/git-log"));
+    if let Ok(project) = host.project(window) {
+        project.open_external_log(&root)?;
+    }
+    let mut logs = host.external_logs.write();
+    let roots = logs.entry(host.owner_window(window).to_string()).or_default();
+    if !roots.iter().any(|r| r.root() == root) {
+        roots.push(std::sync::Arc::new(repo));
+    }
+    Ok(root.into())
+}
+
+pub async fn vcs_log_details(
+    host: &Host,
+    window: &str,
+    repo: Option<PathBuf>,
+    revision: String,
+) -> IdeResult<LogDetails> {
+    let project = LogAccess::new(host, window, repo.as_deref());
+    blocking(move || project.with_log_repo_at(repo.as_deref(), |r| r.log_details(&revision))).await
+}
+
+pub async fn vcs_log_details_batch(
+    host: &Host,
+    window: &str,
+    repo: Option<PathBuf>,
+    revisions: Vec<String>,
+    request: RequestId,
+) -> IdeResult<Vec<LogDetails>> {
+    let project = LogAccess::new(host, window, repo.as_deref());
+    let cancel = host.begin_project_read_request(window, request);
+    let result = blocking(move || {
+        project.with_log_repo_at(repo.as_deref(), |r| {
+            revisions.iter().map(|id| r.log_details_cancellable(id, &cancel)).collect()
+        })
+    })
+    .await;
+    host.end_request(request);
+    result
+}
+
+pub async fn vcs_log_index(
+    host: &Host,
+    window: &str,
+    repo: Option<PathBuf>,
+    request: Option<RequestId>,
+) -> IdeResult<LogIndexProgress> {
+    let project = LogAccess::new(host, window, repo.as_deref());
+    let cancel =
+        request.map_or_else(ide_core::CancellationToken::new, |id| host.begin_project_read_request(window, id));
+    let result = blocking(move || {
+        project.with_log_repo_at(repo.as_deref(), |r| {
+            r.enable_log_index(&project.cache);
+            if request.is_some() { r.index_log(&cancel) } else { Ok(r.log_index_progress()) }
+        })
+    })
+    .await;
+    if let Some(request) = request {
+        host.end_request(request);
+    }
+    result
+}
+
+pub async fn vcs_revision_children(
+    host: &Host,
+    window: &str,
+    repo: Option<PathBuf>,
+    revision: String,
+    directory: String,
+) -> IdeResult<Vec<String>> {
+    let project = LogAccess::new(host, window, repo.as_deref());
+    blocking(move || project.with_log_repo_at(repo.as_deref(), |r| r.revision_children(&revision, &directory))).await
+}
+
+pub async fn vcs_revision_files(
+    host: &Host,
+    window: &str,
+    repo: Option<PathBuf>,
+    revision: String,
+) -> IdeResult<Vec<String>> {
+    let project = LogAccess::new(host, window, repo.as_deref());
+    blocking(move || project.with_log_repo_at(repo.as_deref(), |r| r.revision_files(&revision))).await
 }
 
 pub async fn vcs_commit_files(
@@ -256,8 +454,8 @@ pub async fn vcs_commit_files(
     repo: Option<PathBuf>,
     commit: String,
 ) -> IdeResult<Vec<ChangedFile>> {
-    let project = host.project(window)?;
-    blocking(move || project.with_repo_at(repo.as_deref(), |r| r.commit_files(&commit))).await
+    let project = LogAccess::new(host, window, repo.as_deref());
+    blocking(move || project.with_log_repo_at(repo.as_deref(), |r| r.commit_files(&commit))).await
 }
 
 /// Combined changes of several commits, `commits` oldest first.
@@ -267,13 +465,13 @@ pub async fn vcs_commits_changes(
     repo: Option<PathBuf>,
     commits: Vec<String>,
 ) -> IdeResult<Vec<RevisionChange>> {
-    let project = host.project(window)?;
-    blocking(move || project.with_repo_at(repo.as_deref(), |r| r.commits_changes(&commits))).await
+    let project = LogAccess::new(host, window, repo.as_deref());
+    blocking(move || project.with_log_repo_at(repo.as_deref(), |r| r.commits_changes(&commits))).await
 }
 
 pub async fn vcs_branches(host: &Host, window: &str, repo: Option<PathBuf>) -> IdeResult<Vec<Branch>> {
-    let project = host.project(window)?;
-    blocking(move || project.with_repo_at(repo.as_deref(), |r| r.branches())).await
+    let project = LogAccess::new(host, window, repo.as_deref());
+    blocking(move || project.with_log_repo_at(repo.as_deref(), |r| r.branches())).await
 }
 
 pub async fn vcs_stashes(host: &Host, window: &str, repo: Option<PathBuf>) -> IdeResult<Vec<Stash>> {
@@ -628,8 +826,8 @@ pub async fn vcs_config_get(
     repo: Option<PathBuf>,
     key: String,
 ) -> IdeResult<Option<String>> {
-    let project = host.project(window)?;
-    blocking(move || project.with_repo_at(repo.as_deref(), |r| r.config_get(&key))).await
+    let project = LogAccess::new(host, window, repo.as_deref());
+    blocking(move || project.with_log_repo_at(repo.as_deref(), |r| r.config_get(&key))).await
 }
 
 /// Local history operation that may take a while (hooks, large checkouts); git's
@@ -690,8 +888,8 @@ pub async fn vcs_create_tag(
 }
 
 pub async fn vcs_tags(host: &Host, window: &str, repo: Option<PathBuf>) -> IdeResult<Vec<String>> {
-    let project = host.project(window)?;
-    blocking(move || project.with_repo_at(repo.as_deref(), |r| r.tags())).await
+    let project = LogAccess::new(host, window, repo.as_deref());
+    blocking(move || project.with_log_repo_at(repo.as_deref(), |r| r.tags())).await
 }
 
 /// Merge dialog: merges `branches` into the current branch.
@@ -727,8 +925,8 @@ pub async fn vcs_rebase_with(
 }
 
 pub async fn vcs_remotes(host: &Host, window: &str, repo: Option<PathBuf>) -> IdeResult<Vec<Remote>> {
-    let project = host.project(window)?;
-    blocking(move || project.with_repo_at(repo.as_deref(), |r| r.remotes())).await
+    let project = LogAccess::new(host, window, repo.as_deref());
+    blocking(move || project.with_log_repo_at(repo.as_deref(), |r| r.remotes())).await
 }
 
 pub async fn vcs_edit_remote(host: &Host, window: &str, repo: Option<PathBuf>, edit: RemoteEdit) -> IdeResult<()> {
@@ -815,8 +1013,8 @@ pub async fn vcs_diff_with_worktree(
     repo: Option<PathBuf>,
     rev: String,
 ) -> IdeResult<Vec<ChangedFile>> {
-    let project = host.project(window)?;
-    blocking(move || project.with_repo_at(repo.as_deref(), |r| r.diff_with_worktree(&rev))).await
+    let project = LogAccess::new(host, window, repo.as_deref());
+    blocking(move || project.with_log_repo_at(repo.as_deref(), |r| r.diff_with_worktree(&rev))).await
 }
 
 /// Files that differ between two revisions (the "N files updated" of Update Project).
@@ -827,8 +1025,8 @@ pub async fn vcs_diff_revisions(
     from: String,
     to: String,
 ) -> IdeResult<Vec<ChangedFile>> {
-    let project = host.project(window)?;
-    blocking(move || project.with_repo_at(repo.as_deref(), |r| r.diff_revisions(&from, &to))).await
+    let project = LogAccess::new(host, window, repo.as_deref());
+    blocking(move || project.with_log_repo_at(repo.as_deref(), |r| r.diff_revisions(&from, &to))).await
 }
 
 /// The best common ancestor of `a` and `b` (`git merge-base`), if any: the New Pull
@@ -1015,6 +1213,25 @@ pub(crate) fn register(d: &mut Dispatcher) {
         vcs_block_history(&c.host, &c.window, request, path, text, lines).await
     });
     d.add("vcs_log", |c| async move { vcs_log(&c.host, &c.window, c.arg("repo")?, c.arg("query")?).await });
+    d.add("vcs_log_refs", |c| async move { vcs_log_refs(&c.host, &c.window, c.arg("repo")?).await });
+    d.add("vcs_log_users", |c| async move { vcs_log_users(&c.host, &c.window, c.arg("repo")?).await });
+    d.add("vcs_open_external_log", |c| async move { vcs_open_external_log(&c.host, &c.window, c.arg("path")?).await });
+    d.add("vcs_log_details", |c| async move {
+        vcs_log_details(&c.host, &c.window, c.arg("repo")?, c.arg("revision")?).await
+    });
+    d.add("vcs_log_details_batch", |c| async move {
+        vcs_log_details_batch(&c.host, &c.window, c.arg("repo")?, c.arg("revisions")?, c.arg("request")?).await
+    });
+    d.add(
+        "vcs_log_index",
+        |c| async move { vcs_log_index(&c.host, &c.window, c.arg("repo")?, c.arg("request")?).await },
+    );
+    d.add("vcs_revision_children", |c| async move {
+        vcs_revision_children(&c.host, &c.window, c.arg("repo")?, c.arg("revision")?, c.arg("directory")?).await
+    });
+    d.add("vcs_revision_files", |c| async move {
+        vcs_revision_files(&c.host, &c.window, c.arg("repo")?, c.arg("revision")?).await
+    });
     d.add("vcs_commit_files", |c| async move {
         vcs_commit_files(&c.host, &c.window, c.arg("repo")?, c.arg("commit")?).await
     });

crates/ide-host/src/plugins/api.rs

@@ -667,6 +667,17 @@ impl HostApi for PluginApi {
         Ok(())
     }
 
+    fn open_location(&self, client: Option<&str>, path: &Path, line: u32, column: u32) -> Result<(), HostError> {
+        let event = PluginEvent::OpenLocation {
+            plugin_id: self.id().to_owned(),
+            path: path.to_path_buf().into(),
+            line,
+            column,
+        };
+        self.shared.sink.emit(client, event);
+        Ok(())
+    }
+
     fn setting(&self, root: Option<&Path>, key: &str) -> Option<String> {
         let schema: Vec<super::ui_points::SettingSchema> = self
             .shared

crates/ide-host/src/plugins/remote_host.rs

@@ -114,6 +114,7 @@ pub fn forwarded(event: &PluginEvent) -> bool {
             | PluginEvent::ViewChanged { .. }
             | PluginEvent::ViewMessage { .. }
             | PluginEvent::OpenTerminal { .. }
+            | PluginEvent::OpenLocation { .. }
     )
 }
 

crates/ide-host/src/plugins/types.rs

@@ -192,6 +192,8 @@ pub enum PluginEvent {
         args: Vec<String>,
         cwd: ide_core::IpcPath,
     },
+    #[serde(rename_all = "camelCase")]
+    OpenLocation { plugin_id: String, path: ide_core::IpcPath, line: u32, column: u32 },
     /// Plugin languages, or the servers they may start, changed: re-fetch
     /// `languages` (the host re-detects open documents: [`crate::Host::plugin_languages_changed`]).
     LanguagesChanged,

crates/ide-host/src/plugins/ui_points.rs

@@ -378,9 +378,19 @@ pub(super) fn view(pkg: &Package, decl: toml::Value) -> Result<UiDecl, String> {
     }
     let mut out = UiDecl::new(d.id.clone(), d.title.clone(), json(&d)?);
     out.files = files;
+    if let Some(icon) = d.icon.as_deref().filter(|i| i.ends_with(".svg")) {
+        let path = std::path::PathBuf::from(icon);
+        let svg = super::icons::read_icon(pkg, &path)?;
+        out.assets.push((view_icon_asset(&d.id), svg));
+        out.files.push(path);
+    }
     Ok(out)
 }
 
+pub fn view_icon_asset(id: &str) -> String {
+    format!("viewIcon/{id}")
+}
+
 #[derive(Debug, Deserialize, Serialize)]
 #[serde(deny_unknown_fields)]
 struct CustomEditorDecl {

crates/ide-host/src/project.rs

@@ -34,6 +34,8 @@ pub struct Project {
     pub lsp: Arc<LspManager>,
     /// Git repositories: the one containing the project root and those nested below it.
     pub repos: Arc<RwLock<Repos>>,
+    /// Explicitly opened external logs remain read-only and outside project indexing.
+    pub(crate) external_log_repos: RwLock<Vec<Arc<Repo>>>,
     /// Incrementally maintained syntax trees of the open documents.
     pub syntax: Arc<SyntaxCache>,
     /// Tree-sitter structure queries (LSP fallback) over `syntax`.
@@ -207,6 +209,7 @@ impl Host {
                         cfg.launch_error = Some(e);
                         None
                     });
+                    ide_sdk::apply::configure_java_compiler(cfg, &data_dir, &effective.inspections);
                     ide_sdk::java::configure_jdtls(
                         cfg,
                         server_root,
@@ -462,6 +465,7 @@ impl Host {
             index,
             lsp,
             repos,
+            external_log_repos: RwLock::default(),
             structure: Arc::new(StructureService::new(syntax.clone())),
             syntax,
             detected_roots,
@@ -595,6 +599,7 @@ impl Host {
             index,
             lsp,
             repos: Arc::default(),
+            external_log_repos: RwLock::default(),
             structure: Arc::new(StructureService::new(syntax.clone())),
             syntax,
             detected_roots: Arc::default(),
@@ -692,7 +697,14 @@ fn scan_repositories(
     build_cache: &Path,
 ) {
     let ignored = settings.effective().ignored_names();
-    let skip = |p: &Path| p.file_name().is_some_and(|n| ignored.is_ignored_name(&n.to_string_lossy()));
+    let skip = |p: &Path| {
+        p.file_name().is_some_and(|n| {
+            let name = n.to_string_lossy();
+            ignored.is_ignored_name(&name)
+                || (ide_workspace::unity::GENERATED_DIRS.contains(&name.as_ref())
+                    && p.parent().is_some_and(ide_workspace::unity::is_project))
+        })
+    };
     let mut roots = vec![root.to_path_buf()];
     roots.extend(content_roots(&settings.effective(), root, build_cache));
     match Repos::discover_roots(&roots, &skip) {
@@ -739,6 +751,51 @@ impl Project {
         }
     }
 
+    pub fn open_external_log(&self, path: &Path) -> IdeResult<PathBuf> {
+        let root = dunce::canonicalize(path)?;
+        let repo = Repo::discover(&root)?.ok_or_else(|| IdeError::unavailable("folder is not a Git worktree"))?;
+        let root = repo.root().to_path_buf();
+        repo.set_execution_allowed(false);
+        let mut external = self.external_log_repos.write();
+        if !external.iter().any(|r| r.root() == root) {
+            external.push(Arc::new(repo));
+        }
+        Ok(root)
+    }
+
+    /// Log read operations may also use an explicitly opened external worktree.
+    /// Mutations continue to use `with_repo_at` and cannot reach these repositories.
+    pub fn with_log_repo_at<T>(&self, at: Option<&Path>, f: impl FnOnce(&Repo) -> IdeResult<T>) -> IdeResult<T> {
+        if let Some(path) = at
+            && self.repos().at_root(path).is_none()
+        {
+            let repo = self
+                .external_log_repos
+                .read()
+                .iter()
+                .find(|r| r.root() == path)
+                .cloned()
+                .ok_or_else(|| IdeError::unavailable("external Git log is not open"))?;
+            return f(&repo);
+        }
+        self.with_repo_at(at, f)
+    }
+
+    pub fn with_log_repo_of<T>(&self, path: &Path, f: impl FnOnce(&Repo) -> IdeResult<T>) -> IdeResult<T> {
+        if self.repos().for_path(path).is_some() {
+            return self.with_repo_of(path, f);
+        }
+        let repo = self
+            .external_log_repos
+            .read()
+            .iter()
+            .filter(|r| path.starts_with(r.root()))
+            .max_by_key(|r| r.root().components().count())
+            .cloned()
+            .ok_or_else(|| IdeError::unavailable("path is not in an open Git log"))?;
+        f(&repo)
+    }
+
     /// Runs `f` with the repository `path` (a file or folder) belongs to.
     pub fn with_repo_of<T>(&self, path: &Path, f: impl FnOnce(&Repo) -> IdeResult<T>) -> IdeResult<T> {
         match self.repos().for_path(path) {
@@ -955,7 +1012,7 @@ impl Project {
             return encoding_rs::Encoding::for_label(loaded.encoding.as_bytes())
                 .ok_or_else(|| ide_core::IdeError::invalid("unknown file encoding"));
         }
-        let bytes = self.with_repo_of(path, |r| r.file_bytes_at(path, rev))?.unwrap_or_default();
+        let bytes = self.with_log_repo_of(path, |r| r.file_bytes_at(path, rev))?.unwrap_or_default();
         Ok(ide_vfs::detect_encoding(&bytes, fallback))
     }
 

crates/ide-host/src/rpc.rs

@@ -188,7 +188,7 @@ impl Dispatcher {
             ops::fs::create_file_bytes(&c.host, c.arg("path")?, c.arg("data")?).await
         })
         .add("fs_create_dir", |c| async move { ide_vfs::create_dir(&c.arg::<PathBuf>("path")?) })
-        .add("fs_rename", |c| async move { ide_vfs::rename(&c.arg::<PathBuf>("from")?, &c.arg::<PathBuf>("to")?) })
+        .add("fs_rename", |c| async move { ops::fs::rename(&c.host, c.arg("from")?, c.arg("to")?).await })
         .add("fs_set_writable", |c| async move {
             ops::fs::set_writable(&c.host, &c.window, c.arg("path")?, c.arg("writable")?)
         })

crates/ide-host/src/trust.rs

@@ -222,6 +222,7 @@ pub fn restricted_command_allowed(cmd: &str) -> bool {
             | "project_current"
             | "project_roots"
             | "index_status"
+            | "index_file_extensions"
             | "jvm_file_presentations"
             | "deploy_coverage"
             | "deploy_test_connection"
@@ -307,6 +308,14 @@ pub fn restricted_command_allowed(cmd: &str) -> bool {
             | "vcs_blame"
             | "vcs_block_history"
             | "vcs_log"
+            | "vcs_log_refs"
+            | "vcs_log_users"
+            | "vcs_log_details"
+            | "vcs_log_details_batch"
+            | "vcs_log_index"
+            | "vcs_revision_children"
+            | "vcs_revision_files"
+            | "vcs_open_external_log"
             | "vcs_commit_files"
             | "vcs_commits_changes"
             | "vcs_branches"

crates/ide-host/tests/external_log.rs

@@ -0,0 +1,115 @@
+//! Explicit external logs allow history reads without adding a writable project root.
+use ide_core::NullSink;
+use ide_host::{Host, HostConfig, ops::vcs};
+use std::{path::Path, process::Command, sync::Arc};
+
+fn git(root: &Path, args: &[&str]) -> String {
+    let output = Command::new("git")
+        .current_dir(root)
+        .args(["-c", "user.name=Test", "-c", "[email protected]", "-c", "commit.gpgsign=false"])
+        .args(args)
+        .output()
+        .unwrap();
+    assert!(output.status.success(), "{}", String::from_utf8_lossy(&output.stderr));
+    String::from_utf8(output.stdout).unwrap().trim().to_owned()
+}
+
+#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
+async fn external_history_is_readable_and_never_becomes_a_write_target() {
+    let temp = tempfile::tempdir().unwrap();
+    let base = dunce::canonicalize(temp.path()).unwrap();
+    let root = base.join("project");
+    let external = base.join("external");
+    std::fs::create_dir_all(&root).unwrap();
+    std::fs::create_dir_all(&external).unwrap();
+    git(&external, &["init", "-b", "main"]);
+    let deleted = external.join("deleted.txt");
+    std::fs::write(&deleted, "historical content\n").unwrap();
+    git(&external, &["add", "."]);
+    git(&external, &["commit", "-m", "initial"]);
+    let first = git(&external, &["rev-parse", "HEAD"]);
+    git(&external, &["rm", "deleted.txt"]);
+    git(&external, &["commit", "-m", "delete"]);
+    let head = git(&external, &["rev-parse", "HEAD"]);
+    let host = Host::new(HostConfig {
+        config_dir: base.join("config"),
+        data_dir: base.join("data"),
+        local_data_dir: base.join("data"),
+        languages: Arc::new(ide_language::LanguageRegistry::load(None).unwrap()),
+        syntax: Arc::default(),
+        sink_for: Box::new(|_| Arc::new(NullSink)),
+        owner: |w| w,
+        runtime: tokio::runtime::Handle::current(),
+        project_environment: false,
+    });
+    // A standalone editor needs no project, indexer, or writable VCS root.
+    vcs::vcs_open_external_log(&host, "standalone", external.clone()).await.unwrap();
+    let standalone = vcs::vcs_log(&host, "standalone", Some(external.clone()), Default::default()).await.unwrap();
+    assert_eq!(standalone[0].id, head);
+    let details = vcs::vcs_log_details_batch(
+        &host,
+        "standalone",
+        Some(external.clone()),
+        vec![head.clone(), first.clone()],
+        ide_core::RequestId(987),
+    )
+    .await
+    .unwrap();
+    assert!(details.iter().all(|d| d.signature == "N"));
+    assert_eq!(
+        vcs::vcs_revision_children(&host, "standalone", Some(external.clone()), first.clone(), String::new())
+            .await
+            .unwrap(),
+        vec!["deleted.txt"]
+    );
+    assert!(host.project("standalone").is_err());
+    host.trust.decide(&external, false, false).unwrap();
+    let restricted = host.open_project("restricted", &external).unwrap();
+    assert!(!restricted.is_trusted());
+    vcs::vcs_open_external_log(&host, "restricted", external.clone()).await.unwrap();
+    let restricted_log = vcs::vcs_log(
+        &host,
+        "restricted",
+        Some(external.clone()),
+        ide_vcs::LogQuery { request: Some(ide_core::RequestId(988)), summary_only: true, ..Default::default() },
+    )
+    .await
+    .unwrap();
+    assert_eq!(restricted_log[0].id, head);
+    assert_eq!(
+        vcs::vcs_log_details_batch(
+            &host,
+            "restricted",
+            Some(external.clone()),
+            vec![head.clone()],
+            ide_core::RequestId(989)
+        )
+        .await
+        .unwrap()[0]
+            .signature,
+        "N"
+    );
+    host.close_project("restricted");
+    let payload =
+        serde_json::to_vec(&serde_json::json!({ "repo": external, "revision": first, "path": "deleted.txt" })).unwrap();
+    let hex = payload.iter().map(|b| format!("{b:02x}")).collect::<String>();
+    let document =
+        vcs::revision_virtual_document(&host, "standalone", &format!("git-revision:{hex}/deleted.txt")).await.unwrap();
+    assert_eq!(document.text, "historical content\n");
+    host.trust.decide(&root, true, false).unwrap();
+    let project = host.open_project("main", &root).unwrap();
+    assert!(vcs::vcs_log(&host, "main", Some(external.clone()), Default::default()).await.is_err());
+    vcs::vcs_open_external_log(&host, "main", external.clone()).await.unwrap();
+    let log = vcs::vcs_log(&host, "main", Some(external.clone()), Default::default()).await.unwrap();
+    assert_eq!(log.iter().map(|c| c.id.as_str()).collect::<Vec<_>>(), vec![head.as_str(), first.as_str()]);
+    assert_eq!(
+        vcs::vcs_file_at(&host, "main", deleted.clone(), Some(first.clone())).await.unwrap().as_deref(),
+        Some("historical content\n")
+    );
+    assert!(project.repos().at_root(&external).is_none());
+    assert!(vcs::vcs_checkout(&host, "main", Some(external.clone()), first.clone(), false, None).await.is_err());
+    assert!(vcs::vcs_apply_patch(&host, "main", Some(external.clone()), String::new()).await.is_err());
+    assert_eq!(git(&external, &["rev-parse", "HEAD"]), head);
+    assert!(!deleted.exists());
+    host.close_project("main");
+}

crates/ide-host/tests/language_smoke.rs

@@ -1,6 +1,7 @@
 //! Language smoke tests: the everyday code intelligence of each language — completion, go to
-//! definition, Find Usages, hover, diagnostics with a quick fix, an intention, rename and
-//! formatting — on its `fixtures/` project, through the `ops` the app's commands call and the
+//! definition, Find Usages, hover, diagnostics with a quick fix, an intention, rename,
+//! formatting, parameter info, the Structure view, auto-import, Optimize Imports and moving a
+//! file — on its `fixtures/` project, through the `ops` the app's commands call and the
 //! language server the app starts by default.
 //!
 //! `#[ignore]`d because they need the servers installed. CI's `Language smoke` job installs
@@ -68,6 +69,35 @@ struct Checks {
     indent: Indent,
     /// Renaming the symbol to the new name edits these files.
     rename: (At, &'static str, &'static [&'static str]),
+    /// Parameter info in a call being typed: a signature naming this parameter.
+    signature: (Typed, &'static str),
+    /// The Structure view of a file: these symbols, at any depth.
+    outline: (&'static str, &'static [&'static str]),
+    /// Completing a name the file doesn't import yet also imports it.
+    auto_import: AutoImport,
+    /// Optimize Imports, with an import typed after a line.
+    organize_imports: Option<(Typed, Imports)>,
+    /// Moving a file updates its references: (file, new path, a file that then contains this).
+    file_move: Option<(&'static str, &'static str, &'static str, &'static str)>,
+}
+
+#[derive(Clone, Copy, Debug)]
+struct AutoImport {
+    /// The line typed, ending in the start of the name.
+    typed: Typed,
+    /// The completion item.
+    label: &'static str,
+    /// What the item's import adds to the file.
+    result: &'static str,
+}
+
+/// What Optimize Imports does with the typed import.
+#[derive(Clone, Copy, Debug)]
+enum Imports {
+    /// Removes it (unused).
+    Removed,
+    /// Sorts it before this line.
+    Before(&'static str),
 }
 
 #[derive(Clone, Copy, Debug)]
@@ -432,6 +462,146 @@ impl Smoke {
         }
     }
 
+    async fn signature(&self, call: Typed, parameter: &str) {
+        let (doc, pos, before) = self.type_line(call).await;
+        self.retry("parameter info", self.warm_up, || async {
+            let found = ops::lsp::lsp_signature_help(&self.host, WINDOW, doc, pos).await;
+            match &found {
+                Ok(Some(h)) if h.signatures.iter().any(|s| s.label.contains(parameter)) => Ok(()),
+                _ => Err(found.map(|h| h.map(|h| h.signatures.into_iter().map(|s| s.label).collect::<Vec<_>>()))),
+            }
+        })
+        .await;
+        self.restore(doc, &before).await;
+    }
+
+    async fn outline(&self, file: &str, symbols: &[&str]) {
+        let (doc, _) = self.doc(file).await;
+        fn names(items: &[ide_core::OutlineItem], out: &mut BTreeSet<String>) {
+            for item in items {
+                out.insert(item.name.clone());
+                names(&item.children, out);
+            }
+        }
+        self.retry("structure", self.warm_up, || async {
+            let found = ops::doc::doc_outline(&self.host, WINDOW, doc).await;
+            let mut shown = BTreeSet::new();
+            if let Ok(items) = &found {
+                names(items, &mut shown);
+            }
+            if symbols.iter().all(|s| shown.contains(*s)) { Ok(()) } else { Err(shown) }
+        })
+        .await;
+    }
+
+    async fn auto_import(&self, a: AutoImport) {
+        let (doc, pos, before) = self.type_line(a.typed).await;
+        assert!(!before.contains(a.result), "{a:?}: the file already contains the result");
+        self.retry("auto-import completion", self.warm_up, || async {
+            let list = ops::lsp::lsp_completion(&self.host, WINDOW, RequestId(6), doc, pos, None).await;
+            let items = match &list {
+                Ok(l) => l.items.iter().filter(|i| i.label == a.label).cloned().collect::<Vec<_>>(),
+                Err(e) => return Err(format!("{e}")),
+            };
+            let text = self.doc(a.typed.file).await.1;
+            let mut imports = Vec::new();
+            for item in items {
+                // Servers compute the import when the item is resolved (on selection).
+                let item = if item.additional_edits.is_empty() {
+                    ops::lsp::lsp_resolve_completion(&self.host, WINDOW, doc, item.clone()).await.unwrap_or(item)
+                } else {
+                    item
+                };
+                let mut document = ide_text::Document::new(&text);
+                if document.apply_edits(&item.additional_edits).is_ok() && document.text().contains(a.result) {
+                    return Ok(());
+                }
+                // Or accepting it runs a server command that edits the file (kotlin-lsp).
+                if let Some(command) = item.command.clone() {
+                    let ran = ops::lsp::lsp_execute_command(&self.host, WINDOW, doc, command).await;
+                    let text = self.doc(a.typed.file).await.1;
+                    if ran.is_ok() && text.contains(a.result) {
+                        return Ok(());
+                    }
+                }
+                imports.push(format!("{:?} {:?}", item.additional_edits, item.command));
+            }
+            let labels: Vec<String> = list.map(|l| l.items.into_iter().take(20).map(|i| i.label).collect()).unwrap();
+            Err(format!("{:?} items' imports: {imports:?}; items: {labels:?}", a.label))
+        })
+        .await;
+        self.restore(doc, &before).await;
+    }
+
+    async fn organize_imports(&self, import: Typed, expect: Imports) {
+        let (doc, _, before) = self.type_line(import).await;
+        let typed = import.text.trim();
+        let organized = |text: &str| match expect {
+            Imports::Removed => !text.lines().any(|l| l.trim() == typed),
+            Imports::Before(line) => {
+                let at = |needle: &str| text.lines().position(|l| l.trim() == needle);
+                matches!((at(typed), at(line)), (Some(a), Some(b)) if a < b)
+            }
+        };
+        self.retry("optimize imports", self.warm_up, || async {
+            let text = self.doc(import.file).await.1;
+            // The whole file, as Optimize Imports asks (positions past the end fail on jdtls).
+            let last = text.split('\n').count() as u32 - 1;
+            let whole = Range::new(Pos::new(0, 0), Pos::new(last, utf16_len(text.rsplit('\n').next().unwrap_or(""))));
+            let kind = "source.organizeImports".to_string();
+            let found = ops::lsp::lsp_code_actions(&self.host, WINDOW, doc, whole, vec![kind.clone()]).await;
+            let actions: Vec<_> = match &found {
+                Ok(a) => a.iter().filter(|a| a.kind.as_ref().is_some_and(|k| k.starts_with(&kind))).cloned().collect(),
+                Err(e) => return Err(format!("{e}")),
+            };
+            let Some(action) = actions.iter().find(|a| a.is_preferred).or(actions.first()).cloned() else {
+                return Err(format!(
+                    "no {kind} action: {:?}",
+                    found.map(|a| a.into_iter().map(|a| a.title).collect::<Vec<_>>())
+                ));
+            };
+            ops::lsp::lsp_apply_code_action(&self.host, WINDOW, doc, action).await.map_err(|e| e.to_string())?;
+            let text = self.doc(import.file).await.1;
+            if organized(&text) { Ok(()) } else { Err(text) }
+        })
+        .await;
+        self.restore(doc, &before).await;
+    }
+
+    async fn file_move(&self, from: &str, to: &str, referencing: &str, result: &str) {
+        // The servers know the referencing file (opened, as in an editor).
+        let _ = self.doc(referencing).await;
+        let moves = vec![ide_workspace::FileMove { from: self.path(from).into(), to: self.path(to).into() }];
+        let edit = self
+            .retry("move file", self.warm_up, || async {
+                let found =
+                    ops::refactor::refactor_file_move_edits(&self.host, WINDOW, RequestId(7), moves.clone()).await;
+                let want = self.path(referencing);
+                match &found {
+                    Ok(e)
+                        if e.edit
+                            .files
+                            .iter()
+                            .any(|f| matches!(f, ide_core::FileEdit::Edit { path, .. } if **path == *want)) =>
+                    {
+                        Ok(e.edit.clone())
+                    }
+                    _ => Err(found),
+                }
+            })
+            .await;
+        ops::refactor::refactor_move_files(&self.host, WINDOW, moves, edit, "Move".into())
+            .await
+            .unwrap_or_else(|e| self.fail("move file", e));
+        if !self.path(to).is_file() {
+            self.fail("move file", format_args!("{to} doesn't exist after the move"));
+        }
+        let text = self.doc(referencing).await.1;
+        if !text.contains(result) {
+            self.fail("move file", format_args!("{referencing} has no {result:?} after the move:\n{text}"));
+        }
+    }
+
     async fn run(&self, c: &Checks) {
         self.definition(c.definition.0, c.definition.1).await;
         self.references(c.references.0, c.references.1).await;
@@ -440,7 +610,17 @@ impl Smoke {
         self.quick_fix(c.quick_fix).await;
         self.intention(c.intention.0, c.intention.1).await;
         self.format(c.format.0, c.indent, c.format.1).await;
+        self.signature(c.signature.0, c.signature.1).await;
+        self.outline(c.outline.0, c.outline.1).await;
+        self.auto_import(c.auto_import).await;
+        if let Some((import, expect)) = c.organize_imports {
+            self.organize_imports(import, expect).await;
+        }
         self.rename(c.rename.0, c.rename.1, c.rename.2).await;
+        // Last: it moves a file the other checks use.
+        if let Some((from, to, referencing, result)) = c.file_move {
+            self.file_move(from, to, referencing, result).await;
+        }
         let shutdown = self.host.project(WINDOW).unwrap().lsp.clone();
         let _ = tokio::time::timeout(Duration::from_secs(20), shutdown.shutdown_all()).await;
     }
@@ -480,6 +660,22 @@ const TYPESCRIPT: Checks = Checks {
         "formatPrice",
         &["src/index.ts", "src/money.ts"],
     ),
+    signature: (typed("src/index.ts", "const total = cart.total();", "  cart.add("), "product"),
+    outline: ("src/cart.ts", &["Cart", "add", "total"]),
+    auto_import: AutoImport {
+        typed: typed("src/index.ts", "const total = cart.total();", "  addMon"),
+        label: "addMoney",
+        result: "addMoney",
+    },
+    organize_imports: Some((
+        typed(
+            "src/index.ts",
+            "import { cents, formatMoney } from \"./money.ts\";",
+            "import { readFileSync } from \"node:fs\";",
+        ),
+        Imports::Removed,
+    )),
+    file_move: Some(("src/money.ts", "src/lib/money.ts", "src/index.ts", "\"./lib/money.ts\"")),
 };
 
 #[tokio::test(flavor = "multi_thread", worker_threads = 4)]
@@ -521,6 +717,19 @@ const PYTHON: Checks = Checks {
         "TaskBoard",
         &["src/tasks/cli.py", "src/tasks/models.py"],
     ),
+    signature: (typed("src/tasks/cli.py", "tasks = build_demo()", "    tasks.add("), "title"),
+    outline: ("src/tasks/models.py", &["Priority", "Task", "TaskList", "pending"]),
+    auto_import: AutoImport {
+        typed: typed("src/tasks/cli.py", "tasks = build_demo()", "    stamp = datetim"),
+        label: "datetime",
+        result: "import datetime",
+    },
+    organize_imports: Some((
+        typed("src/tasks/models.py", "from enum import IntEnum", "import abc"),
+        Imports::Before("import os"),
+    )),
+    // basedpyright has no `workspace/willRenameFiles`.
+    file_move: None,
 };
 
 #[tokio::test(flavor = "multi_thread", worker_threads = 4)]
@@ -558,6 +767,16 @@ const RUST: Checks = Checks {
     ),
     indent: Indent::Spaces(4),
     rename: (at("src/parser.rs", "pub fn parse(text: &str)", "parse"), "parse_all", &["src/main.rs", "src/parser.rs"]),
+    signature: (typed("src/main.rs", "let mut inventory = Inventory::new();", "    inventory.take("), "sku"),
+    outline: ("src/lib.rs", &["Inventory", "Item", "take"]),
+    auto_import: AutoImport {
+        typed: typed("src/main.rs", "let mut inventory = Inventory::new();", "    let _seen = HashSe"),
+        label: "HashSet",
+        result: "use std::collections::HashSet;",
+    },
+    // rust-analyzer has no `source.organizeImports`.
+    organize_imports: None,
+    file_move: Some(("src/parser.rs", "src/csv.rs", "src/lib.rs", "pub mod csv;")),
 };
 
 #[tokio::test(flavor = "multi_thread", worker_threads = 4)]
@@ -597,6 +816,16 @@ const GO: Checks = Checks {
         "Open",
         &["cmd/server/main.go", "internal/store/store.go"],
     ),
+    signature: (typed("cmd/server/main.go", "s := store.New()", "\ts.Create("), "title"),
+    outline: ("internal/store/store.go", &["Store", "New", "(*Store).Create"]),
+    auto_import: AutoImport {
+        typed: typed("cmd/server/main.go", "s := store.New()", "\t_ = strings.ToUpp"),
+        label: "ToUpper",
+        result: "\t\"strings\"",
+    },
+    organize_imports: Some((typed("cmd/server/main.go", "\"strconv\"", "\t\"sort\""), Imports::Removed)),
+    // gopls renames packages, not files: moving a Go file changes no references.
+    file_move: None,
 };
 
 #[tokio::test(flavor = "multi_thread", worker_threads = 4)]
@@ -653,6 +882,37 @@ const JAVA: Checks = Checks {
         "submit",
         &["src/main/java/com/example/orders/App.java", "src/main/java/com/example/orders/OrderBook.java"],
     ),
+    signature: (
+        typed(
+            "src/main/java/com/example/orders/App.java",
+            "long revenue = book.revenueCents();",
+            "        book.place(",
+        ),
+        "customer",
+    ),
+    outline: (
+        "src/main/java/com/example/orders/OrderBook.java",
+        &["OrderBook", "place(String, String, int, long)", "revenueCents()"],
+    ),
+    auto_import: AutoImport {
+        typed: typed(
+            "src/main/java/com/example/orders/App.java",
+            "long revenue = book.revenueCents();",
+            "        ArrayLis",
+        ),
+        label: "ArrayList",
+        result: "import java.util.ArrayList;",
+    },
+    organize_imports: Some((
+        typed("src/main/java/com/example/orders/OrderBook.java", "import java.util.Optional;", "import java.util.Map;"),
+        Imports::Removed,
+    )),
+    file_move: Some((
+        "src/main/java/com/example/orders/OrderBook.java",
+        "src/main/java/com/example/orders/Ledger.java",
+        "src/main/java/com/example/orders/App.java",
+        "Ledger book",
+    )),
 };
 
 #[tokio::test(flavor = "multi_thread", worker_threads = 4)]
@@ -705,6 +965,26 @@ const KOTLIN: Checks = Checks {
         "find",
         &["src/main/kotlin/com/example/library/App.kt", "src/main/kotlin/com/example/library/Library.kt"],
     ),
+    signature: (
+        typed("src/main/kotlin/com/example/library/App.kt", "val library = Library()", "    library.lend("),
+        "isbn",
+    ),
+    outline: ("src/main/kotlin/com/example/library/Library.kt", &["Library", "lend", "search"]),
+    auto_import: AutoImport {
+        typed: typed(
+            "src/main/kotlin/com/example/library/App.kt",
+            "val library = Library()",
+            "    val stamp = LocalDateTi",
+        ),
+        label: "LocalDateTime",
+        result: "import java.time.LocalDateTime",
+    },
+    organize_imports: Some((
+        typed("src/main/kotlin/com/example/library/App.kt", "import java.time.LocalDate", "import java.util.UUID"),
+        Imports::Removed,
+    )),
+    // kotlin-lsp has no `workspace/willRenameFiles`.
+    file_move: None,
 };
 
 #[tokio::test(flavor = "multi_thread", worker_threads = 4)]

crates/ide-host/tests/plugins.rs

@@ -2045,6 +2045,83 @@ fn pinned_programs_fill_views_and_open_terminals() {
     assert_eq!(args, ["follow", "build", "--lines=5"]);
 }
 
+#[test]
+fn views_open_project_files_at_a_line() {
+    let f = fixture(Limits::default());
+    let info = f.install(&sample("jobs"));
+    assert_eq!(info.status, PluginStatus::Inactive, "{:?}", info.error);
+    std::fs::write(f.project.join("jobs.log"), "build\ndeploy\nfailed\n").unwrap();
+    let press = |button: &str| {
+        f.take_events();
+        let result = f.host.view_event("jobs", "jobs", ide_plugin::ViewEvent::Button { id: button.into() }, f.inv());
+        let opened = f.take_events().into_iter().find_map(|(client, e)| match e {
+            PluginEvent::OpenLocation { path, line, column, .. } => Some((client, path.0, line, column)),
+            _ => None,
+        });
+        (result, opened)
+    };
+
+    let (result, opened) = press("log");
+    assert!(result.is_ok(), "{result:?}");
+    let (client, path, line, column) = opened.expect("a location");
+    assert_eq!((client.as_deref(), line, column), (Some("main"), 2, 4));
+    assert_eq!(path.canonicalize().unwrap(), f.project.join("jobs.log").canonicalize().unwrap());
+
+    let (result, opened) = press("outside");
+    assert!(result.is_err(), "a path outside the project is refused");
+    assert!(opened.is_none());
+
+    f.host.set_capability("jobs", "project.read", false).unwrap();
+    let (result, opened) = press("log");
+    assert!(result.unwrap_err().message.contains("project.read"), "needs project.read");
+    assert!(opened.is_none());
+}
+
+#[test]
+fn views_can_use_an_svg_icon_from_the_package() {
+    let f = fixture(Limits::default());
+    let tmp = tempfile::tempdir().unwrap();
+    let clean = r##"<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><rect width="16" height="16" fill="#08f"/></svg>"##;
+    let package = |dir: &str, icon: &str, svg: &str| {
+        let pkg = tmp.path().join(dir);
+        for (path, text) in [("panel/index.html", "<p>panel</p>"), ("icons/panel.svg", svg)] {
+            std::fs::create_dir_all(pkg.join(path).parent().unwrap()).unwrap();
+            std::fs::write(pkg.join(path), text).unwrap();
+        }
+        std::fs::write(
+            pkg.join("plugin.toml"),
+            format!(
+                r#"id = "panel-icon"
+name = "Panel Icon"
+version = "1.0.0"
+engines.openidea = "^1.0"
+
+[[contributes.views]]
+id = "panel"
+title = "Panel"
+icon = "{icon}"
+location = "bottom"
+web = "panel/index.html"
+"#
+            ),
+        )
+        .unwrap();
+        pkg
+    };
+
+    assert!(f.host.install_from_dir(&package("missing", "icons/missing.svg", clean), &Consent::all()).is_err());
+    let scripted = clean.replace("<rect", "<script>alert(1)</script><rect");
+    assert!(f.host.install_from_dir(&package("scripted", "icons/panel.svg", &scripted), &Consent::all()).is_err());
+
+    let info = f.install(&package("clean", "icons/panel.svg", clean));
+    assert!(info.error.is_none(), "{:?}", info.error);
+    let view = f.host.ui_items("views").into_iter().find(|v| v.key == "panel").expect("the view");
+    assert_eq!(view.decl["icon"].as_str(), Some("icons/panel.svg"));
+    let assets = f.host.assets("panel-icon", "viewIcon/panel").unwrap();
+    assert_eq!(assets.len(), 1);
+    assert!(assets[0].1.contains("<rect"));
+}
+
 /// A plugin with web views and no code: its pages and their files are
 /// installed with it and served only from the declared directories, while
 /// it is enabled and only for the installed version; file icons and

crates/ide-host/tests/run_configs.rs

@@ -141,3 +141,19 @@ async fn workspace_cmake_before_launch_tasks_resolve_in_the_member() {
         assert!(configs.iter().any(|c| c.id == task.target && c.cwd == build.cwd));
     }
 }
+
+#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
+async fn gradle_init_scripts_are_written_by_the_host_that_runs_the_build() {
+    let tmp = tempfile::tempdir().unwrap();
+    let host = host(tmp.path());
+    let text = "allprojects { }\n".to_string();
+    let path =
+        ops::run::run_gradle_init_script(&host, "main", "openidea-gradle-tests".into(), text.clone()).await.unwrap();
+    assert!(path.contains("openidea-gradle-tests-"), "{path}");
+    assert_eq!(std::fs::read_to_string(&path).unwrap(), text);
+    let again = ops::run::run_gradle_init_script(&host, "main", "openidea-gradle-tests".into(), text).await.unwrap();
+    assert_eq!(again, path);
+    // A name is not a path.
+    let escaped = ops::run::run_gradle_init_script(&host, "main", "../escape".into(), String::new()).await;
+    assert!(escaped.is_err(), "{escaped:?}");
+}

crates/ide-host/tests/unity.rs

@@ -0,0 +1,100 @@
+use ide_core::{NullSink, RequestId};
+use ide_host::{Host, HostConfig, ops};
+use std::{sync::Arc, time::Duration};
+
+#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
+async fn opens_unity_without_generated_solutions_and_excludes_caches_from_the_index() {
+    let temp = tempfile::tempdir().unwrap();
+    let base = dunce::canonicalize(temp.path()).unwrap();
+    let root = base.join("Game");
+    for name in ["Assets/Scripts", "Packages", "ProjectSettings", "Library/PackageCache", "Temp", "Logs"] {
+        std::fs::create_dir_all(root.join(name)).unwrap();
+    }
+    std::fs::write(root.join("ProjectSettings/ProjectVersion.txt"), "m_EditorVersion: 6000.0.62f1\n").unwrap();
+    std::fs::write(root.join("Assets/Scripts/Player.cs"), "class Player {}\n").unwrap();
+    std::fs::write(root.join("Packages/manifest.json"), "{}\n").unwrap();
+    std::fs::write(root.join("Library/PackageCache/Cached.cs"), "class Cached {}\n").unwrap();
+    std::fs::write(root.join("Temp/Temporary.cs"), "class Temporary {}\n").unwrap();
+    std::fs::write(root.join("Logs/Editor.log"), "log\n").unwrap();
+    let host = Host::new(HostConfig {
+        config_dir: base.join("config"),
+        data_dir: base.join("data"),
+        local_data_dir: base.join("data"),
+        languages: Arc::new(ide_language::LanguageRegistry::load(None).unwrap()),
+        syntax: Arc::default(),
+        sink_for: Box::new(|_| Arc::new(NullSink)),
+        owner: |w| w,
+        runtime: tokio::runtime::Handle::current(),
+        project_environment: false,
+    });
+    let project = host.open_project("main", &root).unwrap();
+    let info = ops::project::info(&project);
+    assert_eq!(info.name, "Game");
+    let unity = info.unity.unwrap();
+    assert_eq!(unity.editor_version.as_deref(), Some("6000.0.62f1"));
+    assert!(unity.projects.is_empty() && unity.solutions.is_empty());
+    assert!(project.index.wait_idle(Duration::from_secs(20)));
+    assert_eq!(project.index.find_files("Player.cs", 100).len(), 1);
+    for name in ["Cached.cs", "Temporary.cs", "Editor.log"] {
+        assert!(project.index.find_files(name, 100).is_empty(), "indexed generated file {name}");
+    }
+    let hits = Arc::new(std::sync::Mutex::new(Vec::new()));
+    let out = hits.clone();
+    let query = serde_json::from_value(serde_json::json!({
+        "pattern": "class", "isRegex": false, "caseSensitive": false, "wholeWord": false,
+        "include": [], "exclude": [], "scope": { "kind": "project" }, "maxMatches": 100,
+    }))
+    .unwrap();
+    ops::search::start(
+        &host,
+        "main",
+        RequestId::next(),
+        query,
+        Arc::new(move |event| {
+            if let ops::search::SearchEvent::File { file } = event {
+                out.lock().unwrap().push(file.rel_path);
+            }
+        }),
+    )
+    .await
+    .unwrap();
+    assert_eq!(*hits.lock().unwrap(), ["Assets/Scripts/Player.cs"]);
+    let listing = ops::fs::read_dir(&host, "main", root.clone()).await.unwrap();
+    assert!(listing.iter().any(|e| e.name == "Library" && e.excluded));
+    assert!(project.exclude_globs().contains(&"/Obj".to_owned()));
+
+    // Project metadata refreshes without reopening when Unity generates its solution.
+    std::fs::write(root.join("Game.sln"), "").unwrap();
+    std::fs::write(root.join("Assembly-CSharp.csproj"), "").unwrap();
+    let unity = ops::project::info(&project).unity.unwrap();
+    assert_eq!(unity.solutions, ["Game.sln"]);
+    assert_eq!(unity.projects, ["Assembly-CSharp.csproj"]);
+
+    // Desktop commands and remote RPC share these host operations.
+    let original = root.join("Assets/Scripts/Player.cs");
+    let renamed = root.join("Assets/Scripts/Hero.cs");
+    let copied = root.join("Assets/Scripts/HeroCopy.cs");
+    let meta = |path: &std::path::Path| -> std::path::PathBuf {
+        let mut name = path.as_os_str().to_os_string();
+        name.push(".meta");
+        name.into()
+    };
+    let original_metadata = "fileFormatVersion: 2\nguid: 11111111111111111111111111111111\n";
+    std::fs::write(meta(&original), original_metadata).unwrap();
+    ops::fs::rename(&host, original.clone(), renamed.clone()).await.unwrap();
+    assert!(!original.exists() && !meta(&original).exists());
+    assert_eq!(std::fs::read_to_string(meta(&renamed)).unwrap(), original_metadata);
+    ops::fs::copy(&host, renamed.clone(), copied.clone()).await.unwrap();
+    assert!(copied.exists());
+    assert_ne!(std::fs::read_to_string(meta(&copied)).unwrap(), original_metadata);
+    assert_eq!(std::fs::read_to_string(meta(&renamed)).unwrap(), original_metadata);
+    host.close_project("main");
+
+    let ordinary = base.join("ConsoleApp");
+    std::fs::create_dir(&ordinary).unwrap();
+    std::fs::write(ordinary.join("App.csproj"), "").unwrap();
+    let project = host.open_project("main", &ordinary).unwrap();
+    assert!(ops::project::info(&project).unity.is_none());
+    assert!(!project.exclude_globs().contains(&"/Library".to_owned()));
+    host.close_project("main");
+}

crates/ide-host/tests/vcs_flow.rs

@@ -0,0 +1,209 @@
+//! A day with Git on a `fixtures/` project, through the `ops` the app's commands call: an edit
+//! marked in the gutter, Local Changes and its diff, a commit in the log, a branch, a stash, and
+//! a merge that conflicts, resolved and committed. Open documents follow every step.
+
+use ide_core::DocId;
+use ide_host::{Host, HostConfig, ops};
+use ide_vcs::{ChangeKind, CommitOptions, FileStatus, HunkKind, LogQuery};
+use std::path::{Path, PathBuf};
+use std::process::Command;
+use std::sync::Arc;
+use std::time::Duration;
+
+const WINDOW: &str = "main";
+/// The line every branch changes, in `src/lib.rs`.
+const LINE: &str = "pub fn format_price(cents: u64) -> String {";
+
+fn git(root: &Path, args: &[&str]) -> String {
+    let out = Command::new("git").current_dir(root).args(args).output().unwrap();
+    assert!(out.status.success(), "git {args:?}: {}", String::from_utf8_lossy(&out.stderr));
+    String::from_utf8(out.stdout).unwrap()
+}
+
+fn copy_dir(from: &Path, to: &Path) {
+    std::fs::create_dir_all(to).unwrap();
+    for entry in std::fs::read_dir(from).unwrap().flatten() {
+        let (src, dst) = (entry.path(), to.join(entry.file_name()));
+        if entry.file_type().unwrap().is_dir() {
+            copy_dir(&src, &dst);
+        } else {
+            std::fs::copy(&src, &dst).unwrap();
+        }
+    }
+}
+
+struct Flow {
+    host: Arc<Host>,
+    root: PathBuf,
+    _tmp: tempfile::TempDir,
+}
+
+impl Flow {
+    async fn new(fixture: &str) -> Self {
+        let tmp = tempfile::tempdir().unwrap();
+        let base = dunce::canonicalize(tmp.path()).unwrap();
+        let root = base.join(fixture);
+        copy_dir(&Path::new(env!("CARGO_MANIFEST_DIR")).join("../../fixtures").join(fixture), &root);
+        git(&root, &["init", "-q", "-b", "main"]);
+        for (key, value) in [
+            ("user.name", "Test"),
+            ("user.email", "[email protected]"),
+            ("commit.gpgsign", "false"),
+            ("core.autocrlf", "false"),
+        ] {
+            git(&root, &["config", key, value]);
+        }
+        git(&root, &["add", "-A"]);
+        git(&root, &["commit", "-q", "-m", "Initial commit"]);
+        let host = Arc::new(Host::new(HostConfig {
+            config_dir: base.join("config"),
+            data_dir: base.join("data"),
+            local_data_dir: base.join("data"),
+            languages: Arc::new(ide_language::LanguageRegistry::load(None).unwrap()),
+            syntax: Arc::default(),
+            sink_for: Box::new(|_| Arc::new(|_| {})),
+            owner: |w| w,
+            runtime: tokio::runtime::Handle::current(),
+            project_environment: false,
+        }));
+        host.trust.decide(&root, true, false).unwrap();
+        let project = ops::project::open(&host, WINDOW, &root).await.unwrap();
+        for _ in 0..500 {
+            if !project.repos().is_empty() {
+                break;
+            }
+            tokio::time::sleep(Duration::from_millis(10)).await;
+        }
+        Flow { host, root, _tmp: tmp }
+    }
+
+    async fn open(&self, file: &str) -> DocId {
+        ops::doc::open(&self.host, WINDOW, self.root.join(file)).await.unwrap().id
+    }
+
+    async fn text(&self, doc: DocId) -> String {
+        ops::doc::snapshot(&self.host, WINDOW, doc).await.unwrap().text
+    }
+
+    /// Types `with` over `LINE` in the editor (unsaved).
+    async fn edit_line(&self, doc: DocId, with: &str) {
+        let text = self.text(doc).await;
+        let current = text.lines().find(|l| l.starts_with("pub fn format_price")).unwrap().to_owned();
+        let project = self.host.project(WINDOW).unwrap();
+        project.documents.replace_all(doc, &text.replacen(&current, with, 1)).unwrap();
+    }
+
+    async fn save(&self, doc: DocId) {
+        ops::doc::save(&self.host, WINDOW, doc).await.unwrap();
+    }
+
+    async fn status(&self) -> Vec<FileStatus> {
+        ops::vcs::status(&self.host, WINDOW).await.unwrap()
+    }
+
+    async fn commit(&self, files: &[&str], message: &str) -> String {
+        let paths = files.iter().map(|f| self.root.join(f)).collect();
+        ops::vcs::vcs_stage(&self.host, WINDOW, paths).await.unwrap();
+        let options = CommitOptions { run_hooks: true, ..Default::default() };
+        ops::vcs::vcs_commit(&self.host, WINDOW, None, message.into(), options).await.unwrap()
+    }
+
+    async fn head(&self) -> ide_vcs::Commit {
+        let log = ops::vcs::vcs_log(&self.host, WINDOW, None, LogQuery::default()).await.unwrap();
+        log.into_iter().next().expect("a commit")
+    }
+}
+
+fn changed<'a>(status: &'a [FileStatus], file: &str) -> Option<&'a FileStatus> {
+    status.iter().find(|s| s.rel_path == file)
+}
+
+#[tokio::test(flavor = "multi_thread", worker_threads = 4)]
+async fn change_commit_branch_stash_and_merge_a_conflict() {
+    let f = Flow::new("rust-app").await;
+    let lib_path = f.root.join("src/lib.rs");
+    let lib = f.open("src/lib.rs").await;
+    let original = f.text(lib).await;
+    let line = original.lines().position(|l| l == LINE).expect("the fixture's line") as u32;
+
+    // An edit in the editor: a modified line in the gutter, against HEAD, before saving.
+    let base = "pub fn format_price(cents: u64) -> String { // base";
+    f.edit_line(lib, base).await;
+    let hunks = ops::vcs::vcs_line_hunks(&f.host, WINDOW, lib_path.clone()).await.unwrap();
+    assert!(
+        matches!(&hunks[..], [h] if h.kind == HunkKind::Modified && h.start == line && h.old_text.contains(LINE)),
+        "{hunks:?}"
+    );
+    assert!(f.status().await.is_empty(), "nothing saved yet");
+
+    // Saved: Local Changes lists it, and its diff shows the edit.
+    f.save(lib).await;
+    let status = f.status().await;
+    assert_eq!(changed(&status, "src/lib.rs").and_then(|s| s.unstaged), Some(ChangeKind::Modified), "{status:?}");
+    let diff = ops::vcs::vcs_diff_text(&f.host, WINDOW, lib_path.clone(), false).await.unwrap();
+    assert!(diff.contains(&format!("-{LINE}")) && diff.contains(&format!("+{base}")), "{diff}");
+
+    // Commit: the log's head; nothing left to commit; no gutter marks.
+    let id = f.commit(&["src/lib.rs"], "Mark the base").await;
+    let head = f.head().await;
+    assert_eq!((head.id.as_str(), head.summary.as_str()), (id.as_str(), "Mark the base"));
+    assert!(f.status().await.is_empty());
+    assert!(ops::vcs::vcs_line_hunks(&f.host, WINDOW, lib_path.clone()).await.unwrap().is_empty());
+
+    // A branch changes the line its way.
+    ops::vcs::vcs_create_branch(&f.host, WINDOW, None, "feature".into(), None, true).await.unwrap();
+    let theirs = "pub fn format_price(cents: u64) -> String { // feature";
+    f.edit_line(lib, theirs).await;
+    f.save(lib).await;
+    f.commit(&["src/lib.rs"], "Feature's change").await;
+    let branches = ops::vcs::vcs_branches(&f.host, WINDOW, None).await.unwrap();
+    assert!(branches.iter().any(|b| b.name == "feature" && b.current), "{branches:?}");
+
+    // Back on main, the open file shows main's text.
+    ops::vcs::vcs_checkout(&f.host, WINDOW, None, "main".into(), false, None).await.unwrap();
+    assert!(f.text(lib).await.contains(base));
+
+    // Stash: work in progress put aside and brought back.
+    let main_rs = f.open("src/main.rs").await;
+    let wip = format!("{}// work in progress\n", f.text(main_rs).await);
+    f.host.project(WINDOW).unwrap().documents.replace_all(main_rs, &wip).unwrap();
+    f.save(main_rs).await;
+    ops::vcs::vcs_stash_push(&f.host, WINDOW, None, Some("wip".into()), false, false).await.unwrap();
+    assert!(f.status().await.is_empty());
+    assert!(!f.text(main_rs).await.contains("work in progress"));
+    let stashes = ops::vcs::vcs_stashes(&f.host, WINDOW, None).await.unwrap();
+    assert!(matches!(&stashes[..], [s] if s.message.contains("wip")), "{stashes:?}");
+    ops::vcs::vcs_stash_apply(&f.host, WINDOW, None, 0, true, false, None).await.unwrap();
+    assert_eq!(f.text(main_rs).await, wip);
+    assert!(ops::vcs::vcs_stashes(&f.host, WINDOW, None).await.unwrap().is_empty());
+    ops::vcs::vcs_discard(&f.host, WINDOW, vec![f.root.join("src/main.rs")]).await.unwrap();
+    assert!(f.status().await.is_empty());
+
+    // Main changes the same line: merging the branch conflicts.
+    let ours = "pub fn format_price(cents: u64) -> String { // main";
+    f.edit_line(lib, ours).await;
+    f.save(lib).await;
+    f.commit(&["src/lib.rs"], "Main's change").await;
+    let merged = ops::vcs::vcs_merge(&f.host, WINDOW, None, "feature".into()).await;
+    let status = f.status().await;
+    let conflicted = changed(&status, "src/lib.rs").map(|s| (s.staged, s.unstaged));
+    assert!(
+        matches!(conflicted, Some((Some(ChangeKind::Conflicted), _) | (_, Some(ChangeKind::Conflicted)))),
+        "merge: {merged:?}; status: {status:?}"
+    );
+    // The open file shows the conflict as Git left it.
+    assert!(f.text(lib).await.contains("<<<<<<<"), "{}", f.text(lib).await);
+    let versions = ops::vcs::vcs_conflict_versions(&f.host, WINDOW, lib_path.clone()).await.unwrap();
+    let has = |side: &Option<String>, line: &str| side.as_deref().is_some_and(|t| t.contains(line));
+    assert!(has(&versions.base, base) && has(&versions.ours, ours) && has(&versions.theirs, theirs), "{versions:?}");
+
+    // Resolved (Accept Theirs) and committed: a merge commit, nothing left.
+    let resolved = versions.theirs.clone().unwrap();
+    f.host.project(WINDOW).unwrap().documents.replace_all(lib, &resolved).unwrap();
+    f.save(lib).await;
+    f.commit(&["src/lib.rs"], "Merge feature").await;
+    let head = f.head().await;
+    assert_eq!(head.parents.len(), 2, "{head:?}");
+    assert!(f.status().await.is_empty());
+    assert_eq!(std::fs::read_to_string(&lib_path).unwrap(), resolved);
+}

crates/ide-host/tests/workspace_edits.rs

@@ -175,3 +175,66 @@ async fn contended_version_reads_do_not_block_the_async_worker() {
         assert!(watchdog.join().unwrap(), "request {request_kind} blocked the only async worker");
     }
 }
+
+#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
+async fn code_actions_skip_a_command_no_server_provides_after_their_edit() {
+    use ide_lsp::types::{CodeAction, Command};
+    let tmp = tempfile::tempdir().unwrap();
+    let file = tmp.path().join("imports.txt");
+    std::fs::write(&file, "unused\nused\n").unwrap();
+    let host = Host::new(HostConfig {
+        config_dir: tmp.path().join("config"),
+        data_dir: tmp.path().join("data"),
+        local_data_dir: tmp.path().join("local-data"),
+        languages: Arc::new(ide_language::LanguageRegistry::load(None).unwrap()),
+        syntax: Arc::default(),
+        sink_for: Box::new(|_| Arc::new(|_| {})),
+        owner: |window| window,
+        runtime: tokio::runtime::Handle::current(),
+        project_environment: false,
+    });
+    host.open_light("main", &file).unwrap();
+    let info = ops::doc::open(&host, "main", file.clone()).await.unwrap();
+    // Optimize Imports as vtsls offers it: the edit, then a command its client runs itself.
+    let action = |edit: bool| CodeAction {
+        title: "Organize Imports".into(),
+        kind: Some("source.organizeImports".into()),
+        is_preferred: false,
+        disabled_reason: None,
+        edit: edit.then(|| {
+            serde_json::from_value(json!({ "files": [{ "kind": "edit", "path": file, "edits": [
+                { "range": { "start": { "line": 0, "col": 0 }, "end": { "line": 1, "col": 0 } }, "new_text": "" }
+            ] }] }))
+            .unwrap()
+        }),
+        command: Some(Command {
+            title: String::new(),
+            command: "_typescript.didOrganizeImports".into(),
+            arguments: vec![],
+        }),
+        data: None,
+        server: ide_core::ServerId(1),
+    };
+    let follow_up = action(true).command.unwrap();
+    let asked = ops::lsp::lsp_resolve_command(
+        &host,
+        "main",
+        ide_core::RequestId(1),
+        info.id,
+        ide_core::ServerId(1),
+        follow_up,
+        vec![],
+    )
+    .await;
+    assert!(matches!(asked, Ok(None)), "{asked:?}");
+    ops::lsp::lsp_execute_code_action(&host, "main", ide_core::RequestId(2), info.id, action(true), vec![])
+        .await
+        .unwrap();
+    assert_eq!(ops::doc::snapshot(&host, "main", info.id).await.unwrap().text, "used\n");
+    ops::lsp::lsp_apply_code_action(&host, "main", info.id, action(true)).await.unwrap();
+    assert_eq!(ops::doc::snapshot(&host, "main", info.id).await.unwrap().text, "");
+    // Without an edit the command is the action: it still can't run.
+    let ran =
+        ops::lsp::lsp_execute_code_action(&host, "main", ide_core::RequestId(3), info.id, action(false), vec![]).await;
+    assert!(ran.is_err(), "{ran:?}");
+}

crates/ide-host/tests/workspaces.rs

@@ -114,3 +114,54 @@ async fn linked_projects_share_navigation_but_keep_files_repositories_and_run_di
     assert_eq!(automatic.index.find_files("same.txt", 100).len(), 1);
     host.close_project("main");
 }
+
+#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
+async fn php_language_level_follows_the_member_of_the_file() {
+    use ide_sdk::php::{PhpLanguageLevel, PhpLevelSource};
+    let temp = tempfile::tempdir().unwrap();
+    let base = dunce::canonicalize(temp.path()).unwrap();
+    let (api, legacy) = (base.join("api"), base.join("legacy"));
+    for (member, composer) in [
+        (&api, r#"{"require": {"php": "^7.4"}}"#),
+        (&legacy, r#"{"require": {"php": "^7.4"}, "config": {"platform": {"php": "8.0.5"}}}"#),
+    ] {
+        std::fs::create_dir(member).unwrap();
+        std::fs::write(member.join("composer.json"), composer).unwrap();
+    }
+    let root = base.join("workspace");
+    Workspace::save(&root, "PHP", vec![api.clone(), legacy.clone()], true).unwrap();
+    std::fs::write(root.join("composer.json"), r#"{"require": {"php": "^8.2"}}"#).unwrap();
+    let config_dir = base.join("config");
+    ide_workspace::SettingsStore::load(&config_dir, Some(&legacy))
+        .set(ide_workspace::SettingsScope::Project, "languages.php.languageLevel", "8.3".into())
+        .unwrap();
+    let host = Host::new(HostConfig {
+        config_dir,
+        data_dir: base.join("data"),
+        local_data_dir: base.join("data"),
+        languages: Arc::new(ide_language::LanguageRegistry::load(None).unwrap()),
+        syntax: Arc::default(),
+        sink_for: Box::new(|_| Arc::new(NullSink)),
+        owner: |w| w,
+        runtime: tokio::runtime::Handle::current(),
+        project_environment: false,
+    });
+    host.trust.decide(&root, true, false).unwrap();
+    host.open_project("main", &root).unwrap();
+    let found = |version: &str, source| Some(PhpLanguageLevel { version: version.into(), source });
+    let level = async |path: std::path::PathBuf| ops::sdk::sdk_php_language_level(&host, "main", path).await.unwrap();
+
+    let level_of_api = level(api.join("src/Invoice.php")).await;
+    assert_eq!(level_of_api.effective, found("7.4.0", PhpLevelSource::Require));
+    assert_eq!(level_of_api.auto, level_of_api.effective);
+    assert_eq!(level_of_api.member.as_deref(), Some(api.as_path()));
+    // The member's own settings, not the workspace's.
+    let level_of_legacy = level(legacy.join("index.php")).await;
+    assert_eq!(level_of_legacy.effective, found("8.3.0", PhpLevelSource::Settings));
+    assert_eq!(level_of_legacy.auto, found("8.0.5", PhpLevelSource::Platform));
+    // Outside every member: the workspace's own.
+    let level_elsewhere = level(base.join("elsewhere.php")).await;
+    assert_eq!(level_elsewhere.effective, found("8.2.0", PhpLevelSource::Require));
+    assert_eq!(level_elsewhere.member, None);
+    host.close_project("main");
+}

crates/ide-index/src/lib.rs

@@ -8,6 +8,7 @@ use ide_language::{LanguageRegistry, Syntax};
 use parking_lot::Mutex;
 use serde::{Deserialize, Serialize};
 use specta::Type;
+use std::collections::HashMap;
 use std::path::{Path, PathBuf};
 use std::sync::Arc;
 use std::sync::atomic::Ordering;
@@ -64,6 +65,14 @@ pub struct IndexStatus {
     pub symbols: u32,
 }
 
+/// How many indexed files share an extension (lower case, without the dot).
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Type)]
+#[serde(rename_all = "camelCase")]
+pub struct ExtensionCount {
+    pub extension: String,
+    pub files: u32,
+}
+
 pub struct ProjectIndex {
     shared: Arc<Shared>,
     worker: Mutex<Option<JoinHandle<()>>>,
@@ -159,6 +168,27 @@ impl ProjectIndex {
         }
     }
 
+    /// The extensions of the indexed files, most common first: the project's file
+    /// types, for suggestions such as Find in Files' file masks. Dotfiles
+    /// (`.gitignore`) have no extension.
+    pub fn file_extensions(&self) -> Vec<ExtensionCount> {
+        let d = self.shared.data.read();
+        let mut counts: HashMap<String, u32> = HashMap::new();
+        for file in d.files.iter().flatten() {
+            let name = &file.rel[file.name_start as usize..];
+            if let Some((stem, extension)) = name.rsplit_once('.')
+                && !stem.is_empty()
+                && !extension.is_empty()
+            {
+                *counts.entry(extension.to_ascii_lowercase()).or_default() += 1;
+            }
+        }
+        let mut out: Vec<ExtensionCount> =
+            counts.into_iter().map(|(extension, files)| ExtensionCount { extension, files }).collect();
+        out.sort_by(|a, b| b.files.cmp(&a.files).then_with(|| a.extension.cmp(&b.extension)));
+        out
+    }
+
     /// Fuzzy file search. IDEA-like ranking: file-name matches beat directory
     /// matches; `/` in the query matches path segments; recently opened files boost.
     pub fn find_files(&self, query: &str, limit: usize) -> Vec<FileMatch> {

crates/ide-index/src/tests.rs

@@ -111,6 +111,28 @@ fn indexes_files_and_symbols_honouring_excludes() {
     assert_eq!(m.path, fx.root.join("src/main.rs"));
 }
 
+#[test]
+fn counts_file_extensions_most_common_first() {
+    let fx = Fixture::new(&[
+        ("src/a.rs", "fn a() {}\n"),
+        ("src/b.RS", "fn b() {}\n"),
+        ("src/lib.rs", "fn c() {}\n"),
+        ("Cargo.toml", "[package]\n"),
+        ("README.md", "# r\n"),
+        ("docs/guide.md", "# g\n"),
+        (".gitignore", "target\n"),
+        ("Makefile", "all:\n"),
+        ("target/debug/gen.rs", "fn generated() {}\n"),
+    ]);
+    let idx = fx.open();
+    let counts: Vec<(String, u32)> = idx.file_extensions().into_iter().map(|c| (c.extension, c.files)).collect();
+    assert_eq!(
+        counts,
+        [("rs".into(), 3), ("md".into(), 2), ("toml".into(), 1)],
+        "case-folded, excluded folders and extension-less files left out"
+    );
+}
+
 #[test]
 fn file_ranking_is_idea_like() {
     let fx = sample();

crates/ide-lsp/src/lib.rs

@@ -23,6 +23,7 @@ mod scope;
 mod server;
 mod tcp;
 mod text;
+mod ts_file_moves;
 mod tsserver_bridge;
 pub mod types;
 mod uri;
@@ -1692,6 +1693,20 @@ impl LspManager {
         Ok(())
     }
 
+    /// Whether a server of `doc` (`server`, when given) provides the command `name`. Code actions
+    /// can carry commands other editors' extensions run themselves after the edit (vtsls'
+    /// `_typescript.didOrganizeImports`): no server provides those.
+    pub async fn provides_command(&self, doc: DocId, server: Option<ide_core::ServerId>, name: &str) -> bool {
+        let servers = match self.snapshot(doc) {
+            Ok(snap) => snap.servers,
+            Err(_) => self.servers.lock().clone(),
+        };
+        self.ready_targets(&servers, |c| c.commands().iter().any(|c| c == name))
+            .await
+            .iter()
+            .any(|t| server.is_none_or(|s| t.server.id == s))
+    }
+
     async fn command_target(&self, doc: DocId, server: ide_core::ServerId, name: &str) -> IdeResult<Target> {
         let snap = self.snapshot(doc)?;
         self.ready_targets(&snap.servers, |c| c.commands().iter().any(|c| c == name))
@@ -1710,6 +1725,10 @@ impl LspManager {
         answers: Vec<FormAnswer>,
         cancel: CancellationToken,
     ) -> IdeResult<Option<CommandForm>> {
+        // Nothing to ask for a command its server doesn't provide (executing it decides).
+        if !self.provides_command(doc, Some(server), &command.command).await {
+            return Ok(None);
+        }
         let t = self.command_target(doc, server, &command.command).await?;
         let interactive = t.server.name == "gopls"
             && t.caps()
@@ -1992,7 +2011,30 @@ impl LspManager {
             servers.iter().zip(ready).filter_map(|(s, run)| Some(Target { server: s.clone(), run: run? })).collect();
         let mut out = FileRenameEdits::default();
         for t in targets {
-            let Some(params) = Self::file_op_params(&t, "willRename", &moves) else { continue };
+            let Some(params) = Self::file_op_params(&t, "willRename", &moves) else {
+                if t.server.config.tsserver_project && t.caps().commands().iter().any(|c| c == ts_file_moves::COMMAND) {
+                    out.servers.push(t.server.name.clone());
+                    let opened = self.open_for_file_op(&t, &moves);
+                    for (from, to, _) in &moves {
+                        let r: IdeResult<Value> = self
+                            .call(
+                                &t,
+                                "workspace/executeCommand",
+                                ts_file_moves::request(from, to),
+                                Some(&cancel),
+                                LONG_TIMEOUT,
+                            )
+                            .await;
+                        match r {
+                            Ok(result) => out.edit.files.extend(ts_file_moves::edit(&result).files),
+                            Err(e) if e.kind == ErrorKind::Cancelled && cancel.is_cancelled() => return Err(e),
+                            Err(e) => out.errors.push(e.message),
+                        }
+                    }
+                    drop(opened);
+                }
+                continue;
+            };
             out.servers.push(t.server.name.clone());
             let opened = self.open_for_file_op(&t, &moves);
             let r: IdeResult<Option<lsp::WorkspaceEdit>> =

crates/ide-lsp/src/ts_file_moves.rs

@@ -0,0 +1,89 @@
+//! Reference updates for moved files from vtsls, which has no `workspace/willRenameFiles`:
+//! it updates imports itself after `didRenameFiles`, behind a prompt the client answers. The
+//! IDE asks tsserver for the same edits up front (`getEditsForFileRename`, through
+//! `typescript.tsserverRequest`), so they join the move's preview and undo, and the server's
+//! own update is off (`updateImportsOnFileMove.enabled = "never"` in `languages/*.toml`).
+
+use ide_core::{FileEdit, Pos, Range, TextEdit, WorkspaceEdit};
+use serde::Deserialize;
+use serde_json::{Value, json};
+use std::path::PathBuf;
+
+pub(crate) const COMMAND: &str = "typescript.tsserverRequest";
+
+/// The `typescript.tsserverRequest` arguments asking for the edits of moving `from` to `to`.
+pub(crate) fn request(from: &std::path::Path, to: &std::path::Path) -> Value {
+    json!({
+        "command": COMMAND,
+        "arguments": ["getEditsForFileRename", { "oldFilePath": from, "newFilePath": to }],
+    })
+}
+
+#[derive(Deserialize)]
+struct Location {
+    line: u32,
+    offset: u32,
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct Change {
+    start: Location,
+    end: Location,
+    new_text: String,
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct FileChanges {
+    file_name: PathBuf,
+    text_changes: Vec<Change>,
+}
+
+/// tsserver's `FileCodeEdits[]` (the command's `body`; 1-based lines and UTF-16 offsets) as an edit.
+pub(crate) fn edit(result: &Value) -> WorkspaceEdit {
+    let body = result.get("body").unwrap_or(result);
+    let files: Vec<FileChanges> = serde_json::from_value(body.clone()).unwrap_or_default();
+    let pos = |l: &Location| Pos::new(l.line.saturating_sub(1), l.offset.saturating_sub(1));
+    WorkspaceEdit {
+        files: files
+            .into_iter()
+            .filter(|f| !f.text_changes.is_empty())
+            .map(|f| FileEdit::Edit {
+                path: f.file_name.into(),
+                edits: f
+                    .text_changes
+                    .into_iter()
+                    .map(|c| TextEdit { range: Range::new(pos(&c.start), pos(&c.end)), new_text: c.new_text })
+                    .collect(),
+                version: None,
+            })
+            .collect(),
+        preconditions: Vec::new(),
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn converts_tsserver_file_code_edits() {
+        let result = json!({ "success": true, "body": [
+            { "fileName": "/p/src/index.ts", "textChanges": [
+                { "start": { "line": 2, "offset": 31 }, "end": { "line": 2, "offset": 41 }, "newText": "./lib/money.ts" }
+            ] },
+            { "fileName": "/p/src/unchanged.ts", "textChanges": [] }
+        ] });
+        let edit = edit(&result);
+        assert_eq!(edit.files.len(), 1);
+        let FileEdit::Edit { path, edits, version } = &edit.files[0] else { panic!("{edit:?}") };
+        assert_eq!(**path, *std::path::Path::new("/p/src/index.ts"));
+        assert_eq!(
+            edits,
+            &[TextEdit { range: Range::new(Pos::new(1, 30), Pos::new(1, 40)), new_text: "./lib/money.ts".into() }]
+        );
+        assert!(version.is_none());
+        assert!(super::edit(&json!({ "success": false })).files.is_empty());
+    }
+}

crates/ide-lsp/tests/mock_server.rs

@@ -2336,6 +2336,41 @@ async fn will_and_did_rename_files_honour_filters() {
     );
 }
 
+#[tokio::test(flavor = "multi_thread")]
+async fn will_rename_files_asks_tsserver_when_the_server_has_no_file_operations() {
+    // vtsls: no `willRename` filters, but tsserver's `getEditsForFileRename` through its command.
+    let mut caps = incremental_caps();
+    caps["executeCommandProvider"] = json!({ "commands": ["typescript.tsserverRequest"] });
+    let h = harness_configured("typescript", "ts", &[("vtsls", caps)], |cfg| cfg.tsserver_project = true);
+    let money = h.root.join("money.ts");
+    let index = h.root.join("index.ts");
+    std::fs::write(&money, "export const one = 1;\n").unwrap();
+    std::fs::write(&index, "import { one } from \"./money\";\n").unwrap();
+    let s = h.launcher.state("vtsls");
+    *s.responder.lock() = Some(Arc::new(move |_, method, p| {
+        (method == "workspace/executeCommand" && p["arguments"][0] == "getEditsForFileRename").then(|| {
+            json!({ "success": true, "body": [{ "fileName": p["arguments"][1]["oldFilePath"].as_str().unwrap().replace("money.ts", "index.ts"),
+                "textChanges": [{ "start": { "line": 1, "offset": 22 }, "end": { "line": 1, "offset": 29 }, "newText": "./lib/money" }] }] })
+        })
+    }));
+    let to = h.root.join("lib/money.ts");
+    let result =
+        h.mgr.will_rename_files(&[(money.clone(), to.clone())], ide_core::CancellationToken::new()).await.unwrap();
+    assert_eq!(result.servers, vec!["vtsls".to_owned()]);
+    assert!(result.errors.is_empty(), "{:?}", result.errors);
+    match &result.edit.files[..] {
+        [FileEdit::Edit { path, edits, version: None }] => {
+            assert_eq!(path, &index);
+            assert_eq!(edits[0].range, rng(0, 21, 0, 28));
+            assert_eq!(edits[0].new_text, "./lib/money");
+        }
+        other => panic!("unexpected edit {other:?}"),
+    }
+    let asked = s.requested("workspace/executeCommand");
+    let asked = asked.iter().find(|r| r["arguments"][0] == "getEditsForFileRename").unwrap();
+    assert_eq!(asked["arguments"][1], json!({ "oldFilePath": money, "newFilePath": to }));
+}
+
 // ------------------------------------------------------------------ inspect code
 
 struct InspectTestHost {

crates/ide-plugin/src/runtime.rs

@@ -105,6 +105,7 @@ pub trait HostApi: Send + Sync {
         args: Vec<String>,
         cwd: Option<&Path>,
     ) -> Result<(), HostError>;
+    fn open_location(&self, client: Option<&str>, path: &Path, line: u32, column: u32) -> Result<(), HostError>;
     /// A setting of the plugin as JSON (project over global over the schema default).
     fn setting(&self, root: Option<&Path>, key: &str) -> Option<String>;
 }

crates/ide-plugin/src/wit_host.rs

@@ -640,6 +640,21 @@ impl views::Host for StoreData {
         let title = clip(title, crate::runtime::MAX_TITLE);
         Ok(self.host.open_terminal(client.as_deref(), title, &program, args, cwd.as_deref()).map_err(to_wit))
     }
+
+    fn open_location(&mut self, path: String, line: u32, column: u32) -> Fallible<()> {
+        if let Err(e) = self.require(Capability::ProjectRead) {
+            return Ok(Err(e));
+        }
+        let Some(root) = self.invocation.workspace_root.clone() else {
+            return Ok(Err(wit::Error::Invalid("no project is open in this window".into())));
+        };
+        let real = match sandbox::resolve_in_root(&root, &path) {
+            Ok(real) => real,
+            Err(e) => return Ok(Err(wit::Error::Invalid(e))),
+        };
+        let client = self.invocation.client.clone();
+        Ok(self.host.open_location(client.as_deref(), &real, line, column).map_err(to_wit))
+    }
 }
 
 impl settings::Host for StoreData {

crates/ide-plugin/tests/fixtures/hello/dist/plugin.wasm.sources

@@ -1 +1 @@
-a50d1eb41ab8dd0c9c8d6bae8266906cd6eb5de8e6f6ca6f681990389472bb5b
+1f7402e2b1b4602e4073eb61837c3dc8840f9a4f7275d800dbd6fcf6ce5e40c3

crates/ide-plugin/tests/fixtures/jobs/dist/plugin.wasm.sources

@@ -1 +1 @@
-2fb6aa879562733bf5b7f11dabe8fc6a415c9ef695868fe7845417a4245d2dc8
+4f6cd5b5e0c12e7dcbccf66a6ad97276bf968bc3ad26f0fd08e1f7765cbfee14

crates/ide-plugin/tests/fixtures/jobs/plugin.toml

@@ -12,6 +12,7 @@ activation = ["on-view:jobs", "on-command:*"]
 
 [capabilities]
 required = ["process:jobs"]
+optional = ["project.read"]
 
 [[contributes.views]]
 id = "jobs"

crates/ide-plugin/tests/fixtures/jobs/src/lib.rs

@@ -64,6 +64,8 @@ impl Views for Jobs {
                 return self.follow();
             }
             ViewEvent::Button(b) if b == "follow" => return self.follow(),
+            ViewEvent::Button(b) if b == "log" => return host::open_location("jobs.log", 2, 4),
+            ViewEvent::Button(b) if b == "outside" => return host::open_location("../outside.log", 0, 0),
             _ => return Ok(()),
         }
         host::refresh_view(VIEW);

crates/ide-plugin/tests/fixtures/misbehave/dist/plugin.wasm.sources

@@ -1 +1 @@
-25b0f419a68a3b1651d3c2774d834b05e40ede52bc5ed8c0eba6d27a204efe82
+3d4dd1b6365c7fbafdd3c1f99f4405e5ee40fc5e56c97da960adfe7af2e7edb8

crates/ide-remote/src/mapping.rs

@@ -143,7 +143,10 @@ impl Mappings {
         }
         let (l, rest, _) = best?;
         // A `..` from the server must not leave the local folder.
-        if rest.split('/').any(|s| s == ".." || s == ".") {
+        if rest.split('/').filter(|s| !s.is_empty()).any(|s| {
+            let mut components = Path::new(s).components();
+            !matches!(components.next(), Some(Component::Normal(_))) || components.next().is_some()
+        }) {
             return None;
         }
         Some(rest.split('/').filter(|s| !s.is_empty()).fold(l.clone(), |p, s| p.join(s)))
@@ -307,6 +310,43 @@ mod tests {
         assert_eq!(local_folder("/src/", &root), Some(root.join("src")));
     }
 
+    #[cfg(windows)]
+    #[test]
+    fn native_anchors_never_replace_the_project_relative_fallback() {
+        let tmp = tempfile::tempdir().unwrap();
+        let root = tmp.path().join("project");
+        let inside = root.join("src");
+        let outside = tmp.path().join("outside");
+        let missing = tmp.path().join("missing");
+        std::fs::create_dir_all(&inside).unwrap();
+        std::fs::create_dir(&outside).unwrap();
+        for slash in ["\\", "/"] {
+            let spelling = |path: &Path| path.to_string_lossy().replace('\\', slash);
+            assert_eq!(local_folder(&spelling(&inside), &root), Some(inside.clone()));
+            assert_eq!(local_folder(&spelling(&outside), &root), None);
+            assert_eq!(local_folder(&spelling(&missing), &root), Some(root.join(posix(&missing))));
+            assert_eq!(local_folder(&format!("{slash}src{slash}"), &root), Some(inside.clone()));
+        }
+    }
+
+    #[test]
+    fn remote_paths_cannot_replace_or_leave_a_local_mapping() {
+        let tmp = tempfile::tempdir().unwrap();
+        let root = tmp.path();
+        let m = Mappings::new(&server(vec![]), root, "/srv");
+        for remote in ["/srv/../outside", "/srv/./file"] {
+            assert_eq!(m.local(remote), None, "{remote}");
+        }
+        #[cfg(windows)]
+        for remote in
+            ["/srv/..\\outside", "/srv/C:\\outside", "/srv/\\outside", "/srv/dir\\..\\outside", "/srv/C:/outside"]
+        {
+            assert_eq!(m.local(remote), None, "{remote}");
+        }
+        assert_eq!(m.local("/srv/dir/file"), Some(root.join("dir/file")));
+        assert_eq!(m.local("/srv"), Some(root.to_path_buf()));
+    }
+
     #[cfg(unix)]
     #[test]
     fn absolute_symlink_inside_project_resolves_to_the_project_spelling() {

crates/ide-sdk/src/apply.rs

@@ -5,7 +5,7 @@ use crate::discover::{project_venv_python, workspace_tsdk};
 use crate::exec::{path_with, search_path};
 use crate::{angular, godot, pinned, vue};
 use crate::{bin_dir, exe, venv_of};
-use ide_core::settings::{LanguageServerSettings, Settings};
+use ide_core::settings::{InspectionLevel, InspectionSettings, LanguageServerSettings, Settings};
 use ide_core::version_managers::Tool;
 use ide_language::{LanguageConfig, LanguageServerConfig};
 use ide_run::RunConfig;
@@ -442,15 +442,41 @@ pub(crate) fn merge_init_options(cfg: &mut LanguageServerConfig, layer: Value) {
     }
 }
 
+/// Editor › Inspections › Java: "Serializable class without 'serialVersionUID'" (off by default,
+/// as in IntelliJ IDEA). ECJ reports it, so it is a compiler option rather than a filter.
+pub const SERIAL_VERSION_INSPECTION: &str = "java:missing-serial-version";
+
+/// ECJ's level for a missing `serialVersionUID`, from the inspection profile in effect.
+fn missing_serial_version(inspections: &InspectionSettings) -> Option<&'static str> {
+    let o = inspections.active().get(SERIAL_VERSION_INSPECTION)?;
+    if o.enabled != Some(true) {
+        return None;
+    }
+    Some(match o.severity {
+        Some(InspectionLevel::Error) => "error",
+        None | Some(InspectionLevel::Warning) => "warning",
+        Some(_) => "info",
+    })
+}
+
 /// Workspace compiler defaults; Eclipse project preferences still take precedence.
-pub(crate) fn configure_java_compiler(cfg: &mut LanguageServerConfig, data_dir: &Path) {
-    let file = data_dir.join("lsp/jdtls/compiler-defaults.prefs");
+/// Each variant has its own file, so changing an inspection restarts the server with it.
+pub fn configure_java_compiler(cfg: &mut LanguageServerConfig, data_dir: &Path, inspections: &InspectionSettings) {
     const DEFAULTS: &str = "org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning\n\
 org.eclipse.jdt.core.compiler.problem.discouragedReference=warning\n";
+    let serial = missing_serial_version(inspections);
+    let (name, content) = match serial {
+        None => ("compiler-defaults.prefs".to_owned(), DEFAULTS.to_owned()),
+        Some(level) => (
+            format!("compiler-defaults-serial-{level}.prefs"),
+            format!("{DEFAULTS}org.eclipse.jdt.core.compiler.problem.missingSerialVersion={level}\n"),
+        ),
+    };
+    let file = data_dir.join("lsp/jdtls").join(name);
     let write = || -> ide_core::IdeResult<()> {
         std::fs::create_dir_all(file.parent().expect("compiler preferences directory"))?;
-        if std::fs::read_to_string(&file).ok().as_deref() != Some(DEFAULTS) {
-            ide_vfs::write_atomic(&file, DEFAULTS.as_bytes())?;
+        if std::fs::read_to_string(&file).ok().as_deref() != Some(content.as_str()) {
+            ide_vfs::write_atomic(&file, content.as_bytes())?;
         }
         Ok(())
     };
@@ -612,9 +638,18 @@ pub fn configure_server(cfg: &mut LanguageServerConfig, root: &Path, server_root
 
     // Intelephense reads it as `intelephense.environment.phpVersion` (`workspace/configuration`).
     if name == "intelephense"
-        && let Some(version) = crate::php::language_level(root, s)
+        && let Some(level) = crate::php::language_level(root, s)
     {
-        merge_init_options(cfg, json!({ "environment": { "phpVersion": version } }));
+        merge_init_options(cfg, json!({ "environment": { "phpVersion": level.version } }));
+    }
+    if name == "intelephense" {
+        if let Some(stubs) = crate::php::intelephense_stubs(root, s) {
+            merge_init_options(cfg, json!({ "stubs": stubs }));
+        }
+        let include_paths = crate::php::include_paths(root, s);
+        if !include_paths.is_empty() {
+            merge_init_options(cfg, json!({ "environment": { "includePaths": include_paths } }));
+        }
     }
 
     // Node-based servers (`#!/usr/bin/env node`) run on the selected Node.js.
@@ -1086,13 +1121,50 @@ mod java_compiler_tests {
         serde_json::to_value(cfg.initialization_options.as_ref().unwrap()).unwrap()
     }
 
+    #[test]
+    fn serial_version_inspection_sets_the_compiler_option() {
+        let tmp = tempfile::tempdir().unwrap();
+        let url = |inspections: &InspectionSettings| {
+            let mut cfg = custom_server("jdtls", &LanguageServerSettings::default());
+            configure_java_compiler(&mut cfg, tmp.path(), inspections);
+            options(&cfg).pointer("/settings/java/settings/url").unwrap().as_str().unwrap().to_owned()
+        };
+        let set = |o: ide_core::settings::InspectionOverride| {
+            let mut s = InspectionSettings::default();
+            s.default.insert(SERIAL_VERSION_INSPECTION.into(), o);
+            s
+        };
+        let off = url(&InspectionSettings::default());
+        assert!(!std::fs::read_to_string(&off).unwrap().contains("missingSerialVersion"));
+        let on = url(&set(ide_core::settings::InspectionOverride { enabled: Some(true), ..Default::default() }));
+        assert_ne!(on, off, "a new file, so the server restarts with it");
+        assert!(std::fs::read_to_string(&on).unwrap().ends_with("compiler.problem.missingSerialVersion=warning\n"));
+        let error = url(&set(ide_core::settings::InspectionOverride {
+            enabled: Some(true),
+            severity: Some(InspectionLevel::Error),
+            ..Default::default()
+        }));
+        assert!(std::fs::read_to_string(error).unwrap().ends_with("missingSerialVersion=error\n"));
+        let weak = url(&set(ide_core::settings::InspectionOverride {
+            enabled: Some(true),
+            severity: Some(InspectionLevel::WeakWarning),
+            ..Default::default()
+        }));
+        assert!(std::fs::read_to_string(weak).unwrap().ends_with("missingSerialVersion=info\n"));
+        let severity_only = url(&set(ide_core::settings::InspectionOverride {
+            severity: Some(InspectionLevel::Error),
+            ..Default::default()
+        }));
+        assert_eq!(severity_only, off, "off by default");
+    }
+
     #[test]
     fn compiler_defaults_live_in_the_cache_and_preserve_other_options() {
         let tmp = tempfile::tempdir().unwrap();
         let cache = tmp.path().join("cache with spaces 测试");
         let mut cfg = custom_server("jdtls", &LanguageServerSettings::default());
         merge_init_options(&mut cfg, json!({"settings": {"java": {"format": {"tabSize": 4}}}}));
-        configure_java_compiler(&mut cfg, &cache);
+        configure_java_compiler(&mut cfg, &cache, &InspectionSettings::default());
         let options = options(&cfg);
         let path = PathBuf::from(options.pointer("/settings/java/settings/url").unwrap().as_str().unwrap());
         assert!(path.starts_with(&cache));
@@ -1103,7 +1175,7 @@ mod java_compiler_tests {
         }
         assert_eq!(options.pointer("/settings/java/format/tabSize"), Some(&json!(4)));
         let modified = std::fs::metadata(&path).unwrap().modified().unwrap();
-        configure_java_compiler(&mut cfg, &cache);
+        configure_java_compiler(&mut cfg, &cache, &InspectionSettings::default());
         assert_eq!(std::fs::metadata(path).unwrap().modified().unwrap(), modified);
         assert_eq!(self::options(&cfg), options);
     }
@@ -1113,7 +1185,7 @@ mod java_compiler_tests {
         let tmp = tempfile::tempdir().unwrap();
         let mut cfg = custom_server("jdtls", &LanguageServerSettings::default());
         merge_init_options(&mut cfg, json!({"settings": {"java": {"settings": {"url": "own.prefs"}}}}));
-        configure_java_compiler(&mut cfg, tmp.path());
+        configure_java_compiler(&mut cfg, tmp.path(), &InspectionSettings::default());
         assert_eq!(options(&cfg).pointer("/settings/java/settings/url"), Some(&json!("own.prefs")));
 
         for settings in [

crates/ide-sdk/src/java.rs

@@ -369,7 +369,6 @@ pub fn configure_jdtls(
     if cfg.name != "jdtls" {
         return;
     }
-    crate::apply::configure_java_compiler(cfg, data_dir);
     // A Lombok agent from the user's JVM arguments wins.
     let own_agent = crate::lombok::agent_in_args(cfg.args.iter().map(String::as_str));
     let agent = own_agent.as_deref().or(lombok);

crates/ide-sdk/src/php.rs

@@ -1,24 +1,53 @@
 //! The PHP language level: the one chosen in Settings › PHP, else the one the root
 //! `composer.json` declares (`config.platform.php`, else the lowest version `require.php` allows);
-//! and the Intelephense storage that goes with it.
+//! the Intelephense storage that goes with it; and the stub sets and include paths Intelephense indexes.
 
-use crate::apply::{merge, merge_init_options};
+use crate::apply::{merge, merge_init_options, setting_path};
 use ide_core::settings::Settings;
 use ide_language::LanguageServerConfig;
 use serde_json::{Value, json};
 use std::path::Path;
 
-/// The project's PHP version as `X.Y.Z`; `None` when neither the settings nor
-/// `composer.json` name one.
-pub fn language_level(root: &Path, s: &Settings) -> Option<String> {
+/// A PHP version and where it comes from.
+#[derive(Clone, Debug, PartialEq, Eq, serde::Serialize, specta::Type)]
+#[serde(rename_all = "camelCase")]
+pub struct PhpLanguageLevel {
+    /// `X.Y.Z`.
+    pub version: String,
+    pub source: PhpLevelSource,
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq, serde::Serialize, specta::Type)]
+#[serde(rename_all = "camelCase")]
+pub enum PhpLevelSource {
+    /// `languages.php.languageLevel`.
+    Settings,
+    /// `config.platform.php` of `composer.json`.
+    Platform,
+    /// The lowest version `require.php` of `composer.json` allows.
+    Require,
+}
+
+/// The project's PHP version: the one chosen in the settings, else [`composer_level`];
+/// `None` when neither names one.
+pub fn language_level(root: &Path, s: &Settings) -> Option<PhpLanguageLevel> {
     let explicit = s.languages.php.language_level.trim();
     if !explicit.is_empty() {
-        return version(explicit).map(dotted);
+        return version(explicit).map(|v| PhpLanguageLevel::new(v, PhpLevelSource::Settings));
     }
+    composer_level(root)
+}
+
+/// The PHP version the root `composer.json` declares (the setting's Auto):
+/// `config.platform.php`, else the lowest version `require.php` allows.
+pub fn composer_level(root: &Path) -> Option<PhpLanguageLevel> {
     let text = std::fs::read_to_string(root.join("composer.json")).ok()?;
     let composer: Value = serde_json::from_str(&text).ok()?;
-    let platform = composer.pointer("/config/platform/php").and_then(Value::as_str).and_then(version);
-    platform.or_else(|| lowest_allowed(composer.pointer("/require/php")?.as_str()?)).map(dotted)
+    if let Some(platform) = composer.pointer("/config/platform/php").and_then(Value::as_str).and_then(version) {
+        return Some(PhpLanguageLevel::new(platform, PhpLevelSource::Platform));
+    }
+    lowest_allowed(composer.pointer("/require/php")?.as_str()?)
+        .map(|v| PhpLanguageLevel::new(v, PhpLevelSource::Require))
 }
 
 /// Gives each PHP version its own Intelephense workspace storage (below `data_dir`).
@@ -48,10 +77,74 @@ pub fn configure_intelephense_storage(cfg: &mut LanguageServerConfig, data_dir:
     merge_init_options(cfg, json!({ "storagePath": storage.to_string_lossy() }));
 }
 
+/// The stub sets Intelephense loads when `stubs` is not set (Intelephense 1.18.5). Setting
+/// `stubs` replaces them, so additions are sent together with these.
+#[rustfmt::skip]
+const DEFAULT_STUBS: &[&str] = &[
+    "apache", "bcmath", "bz2", "calendar", "com_dotnet", "Core", "ctype", "curl", "date", "dba", "dom", "enchant",
+    "exif", "fileinfo", "filter", "fpm", "ftp", "gd", "hash", "iconv", "imap", "intl", "json", "ldap", "libxml",
+    "mbstring", "mcrypt", "mssql", "mysqli", "oci8", "odbc", "openssl", "pcntl", "pcre", "PDO", "pgsql", "Phar",
+    "posix", "pspell", "random", "readline", "Reflection", "regex", "session", "shmop", "SimpleXML", "snmp", "soap",
+    "sockets", "sodium", "SPL", "sqlite3", "standard", "superglobals", "sybase", "sysvmsg", "sysvsem", "sysvshm",
+    "tidy", "tokenizer", "uri", "xml", "xmlreader", "xmlrpc", "xmlwriter", "Zend OPcache", "zip", "zlib",
+];
+
+/// Stub sets outside the defaults whose names are not lower case; the rest are the lower-case
+/// extension name.
+const MIXED_CASE_STUBS: &[&str] =
+    &["Ev", "FFI", "LuaSandbox", "Parle", "SQLite", "SaxonC", "SplType", "ZendCache", "ZendDebugger", "ZendUtils"];
+
+/// `Zend OPcache`, `zend-opcache` and `zend_opcache` name the same stubs.
+fn stub_key(name: &str) -> String {
+    name.chars().filter(char::is_ascii_alphanumeric).map(|c| c.to_ascii_lowercase()).collect()
+}
+
+/// The `stubs` Intelephense loads: its defaults plus a stub set for each `ext-*` that the root
+/// `composer.json` requires (`require`, `require-dev`) and those in Settings › PHP. `None` when
+/// that adds nothing to the defaults, so the server keeps its own.
+pub fn intelephense_stubs(root: &Path, s: &Settings) -> Option<Vec<String>> {
+    let composer: Option<Value> =
+        std::fs::read_to_string(root.join("composer.json")).ok().and_then(|t| serde_json::from_str(&t).ok());
+    let extensions = ["require", "require-dev"]
+        .into_iter()
+        .filter_map(|section| composer.as_ref()?.get(section)?.as_object())
+        .flat_map(|deps| deps.keys())
+        .filter_map(|dep| dep.strip_prefix("ext-"))
+        .map(|ext| {
+            let key = stub_key(ext);
+            MIXED_CASE_STUBS
+                .iter()
+                .find(|stub| stub_key(stub) == key)
+                .map_or(ext.to_ascii_lowercase(), |s| s.to_string())
+        });
+    let configured = s.languages.php.stubs.iter().map(|stub| stub.trim().to_owned());
+    let mut stubs: Vec<String> = DEFAULT_STUBS.iter().map(|s| s.to_string()).collect();
+    let mut known: std::collections::HashSet<String> = stubs.iter().map(|s| stub_key(s)).collect();
+    for stub in extensions.chain(configured) {
+        if !stub.is_empty() && known.insert(stub_key(&stub)) {
+            stubs.push(stub);
+        }
+    }
+    (stubs.len() > DEFAULT_STUBS.len()).then_some(stubs)
+}
+
+/// The folders in Settings › PHP › Include paths, resolved against the project.
+pub fn include_paths(root: &Path, s: &Settings) -> Vec<String> {
+    s.languages
+        .php
+        .include_paths
+        .iter()
+        .filter_map(|p| setting_path(root, p))
+        .map(|p| p.to_string_lossy().into_owned())
+        .collect()
+}
+
 type Version = (u32, u32, u32);
 
-fn dotted((major, minor, patch): Version) -> String {
-    format!("{major}.{minor}.{patch}")
+impl PhpLanguageLevel {
+    fn new((major, minor, patch): Version, source: PhpLevelSource) -> Self {
+        Self { version: format!("{major}.{minor}.{patch}"), source }
+    }
 }
 
 /// `7`, `7.4`, `v7.4.3`, `8.1.*`, `7.4.0-dev`: missing parts are 0.
@@ -105,13 +198,18 @@ mod tests {
     use super::*;
 
     fn level(composer: Option<&str>, explicit: &str) -> Option<String> {
+        levels(composer, explicit).0.map(|l| l.version)
+    }
+
+    /// The effective level and the composer one.
+    fn levels(composer: Option<&str>, explicit: &str) -> (Option<PhpLanguageLevel>, Option<PhpLanguageLevel>) {
         let tmp = tempfile::tempdir().unwrap();
         if let Some(composer) = composer {
             std::fs::write(tmp.path().join("composer.json"), composer).unwrap();
         }
         let mut s = Settings::default();
         s.languages.php.language_level = explicit.into();
-        language_level(tmp.path(), &s)
+        (language_level(tmp.path(), &s), composer_level(tmp.path()))
     }
 
     fn required(constraint: &str) -> Option<String> {
@@ -201,6 +299,74 @@ mod tests {
         }
     }
 
+    fn stubs(composer: Option<Value>, configured: &[&str]) -> Option<Vec<String>> {
+        let tmp = tempfile::tempdir().unwrap();
+        if let Some(composer) = composer {
+            std::fs::write(tmp.path().join("composer.json"), composer.to_string()).unwrap();
+        }
+        let mut s = Settings::default();
+        s.languages.php.stubs = configured.iter().map(|s| s.to_string()).collect();
+        intelephense_stubs(tmp.path(), &s)
+    }
+
+    fn added(stubs: Option<Vec<String>>) -> Vec<String> {
+        let stubs = stubs.expect("stubs");
+        assert_eq!(stubs[..DEFAULT_STUBS.len()], DEFAULT_STUBS.iter().map(|s| s.to_string()).collect::<Vec<_>>());
+        stubs[DEFAULT_STUBS.len()..].to_vec()
+    }
+
+    #[test]
+    fn required_extensions_and_configured_stubs_follow_the_defaults() {
+        let composer = json!({
+            "require": {"php": "^8.1", "ext-redis": "*", "ext-json": "*", "monolog/monolog": "^3"},
+            "require-dev": {"ext-Imagick": "*", "ext-ffi": "*", "ext-redis": "*"}
+        });
+        assert_eq!(
+            added(stubs(Some(composer), &[" wordpress ", "Redis", ""])),
+            ["redis", "imagick", "FFI", "wordpress"]
+        );
+        assert_eq!(added(stubs(None, &["wordpress"])), ["wordpress"]);
+    }
+
+    #[test]
+    fn nothing_beyond_the_defaults_sends_nothing() {
+        assert_eq!(stubs(None, &[]), None);
+        assert_eq!(stubs(Some(json!({"require": {"php": "^8.1"}})), &[]), None);
+        // Default stub sets under their extension names: `ext-pdo`, `ext-zend-opcache`, `ext-simplexml`.
+        let defaults =
+            json!({"require": {"ext-pdo": "*", "ext-zend-opcache": "*", "ext-simplexml": "*", "ext-json": "*"}});
+        assert_eq!(stubs(Some(defaults), &["SPL", "core"]), None);
+        assert_eq!(stubs(Some(json!("not an object")), &[]), None);
+    }
+
+    #[test]
+    fn include_paths_resolve_against_the_project() {
+        let root = Path::new("/work/module");
+        let mut s = Settings::default();
+        s.languages.php.include_paths = vec!["../platform".into(), "/opt/prestashop".into(), " ".into()];
+        assert_eq!(
+            include_paths(root, &s),
+            [root.join("../platform").to_string_lossy().into_owned(), "/opt/prestashop".to_string()]
+        );
+    }
+
+    #[test]
+    fn each_level_names_its_source() {
+        let found = |version: &str, source| Some(PhpLanguageLevel { version: version.into(), source });
+        let require = r#"{"require": {"php": "^7.4"}}"#;
+        let platform = r#"{"require": {"php": "^7.4"}, "config": {"platform": {"php": "8.2.1"}}}"#;
+
+        let require_level = found("7.4.0", PhpLevelSource::Require);
+        assert_eq!(levels(Some(require), ""), (require_level.clone(), require_level.clone()));
+        let platform_level = found("8.2.1", PhpLevelSource::Platform);
+        assert_eq!(levels(Some(platform), ""), (platform_level.clone(), platform_level));
+        // An explicit level: the composer one is still what Auto would pick.
+        assert_eq!(levels(Some(require), "8.1"), (found("8.1.0", PhpLevelSource::Settings), require_level));
+        assert_eq!(levels(None, "8.1"), (found("8.1.0", PhpLevelSource::Settings), None));
+        assert_eq!(levels(None, ""), (None, None));
+        assert_eq!(levels(Some(r#"{"require": {"php": "*"}}"#), ""), (None, None));
+    }
+
     #[test]
     fn explicit_level_wins() {
         let composer = r#"{"require": {"php": "^7.4"}, "config": {"platform": {"php": "7.4.33"}}}"#;

crates/ide-sdk/src/tests.rs

@@ -1325,6 +1325,30 @@ fn intelephense_gets_the_php_language_level() {
     assert_eq!(options(cfg), json!({"clearCache": true, "environment": {"phpVersion": "8.1.0"}}));
 }
 
+#[test]
+fn intelephense_gets_the_required_stubs_and_include_paths() {
+    use serde_json::json;
+    let tmp = tempfile::tempdir().unwrap();
+    std::fs::write(tmp.path().join("composer.json"), r#"{"require": {"php": "^8.1", "ext-redis": "*"}}"#).unwrap();
+    let mut s = Settings::default();
+    s.languages.php.stubs = vec!["wordpress".into()];
+    s.languages.php.include_paths = vec!["../platform".into()];
+    let mut cfg = server("intelephense");
+    configure_server(&mut cfg, tmp.path(), tmp.path(), &s);
+    let options = serde_json::to_value(cfg.initialization_options).unwrap();
+    let stubs: Vec<&str> = options["stubs"].as_array().unwrap().iter().filter_map(|v| v.as_str()).collect();
+    assert_eq!(stubs.len(), 70);
+    assert_eq!((stubs[0], &stubs[68..]), ("apache", &["redis", "wordpress"][..]));
+    assert_eq!(
+        options["environment"],
+        json!({"phpVersion": "8.1.0", "includePaths": [tmp.path().join("../platform").to_string_lossy()]})
+    );
+
+    let mut other = server("phpactor");
+    configure_server(&mut other, tmp.path(), tmp.path(), &s);
+    assert_eq!(other.initialization_options, None);
+}
+
 #[test]
 fn go_constraints_change_only_protocol_settings() {
     use serde_json::json;

crates/ide-ssh/src/session.rs

@@ -267,19 +267,29 @@ impl Session {
                 }),
             )
             .await?;
+        let failed = |code: Option<u32>| {
+            let err = String::from_utf8_lossy(&stderr.lock()).trim().to_owned();
+            io(format!("cannot write {remote} on {} ({code:?}): {err}", self.label))
+        };
+        // A command that exits early (no gzip, a folder it cannot write) stops reading: a
+        // write would wait for channel window forever, so each one races the exit.
+        let mut exit = std::pin::pin!(process.wait());
         let mut sent = 0;
         for chunk in packed.chunks(256 * 1024) {
-            process.write(chunk).await?;
+            tokio::select! {
+                written = process.write(chunk) => written?,
+                code = &mut exit => return Err(failed(code)),
+            }
             sent += chunk.len();
             progress(sent as f64 / packed.len().max(1) as f64);
         }
-        process.eof().await?;
-        match process.wait().await {
+        tokio::select! {
+            closed = process.eof() => closed?,
+            code = &mut exit => return Err(failed(code)),
+        }
+        match exit.await {
             Some(0) => Ok(()),
-            code => {
-                let err = String::from_utf8_lossy(&stderr.lock()).trim().to_owned();
-                Err(io(format!("cannot write {remote} on {} ({code:?}): {err}", self.label)))
-            }
+            code => Err(failed(code)),
         }
     }
 

crates/ide-ssh/tests/session.rs

@@ -269,3 +269,26 @@ async fn runs_commands_and_streams_processes() {
     assert_eq!(process.wait().await, Some(3));
     assert_eq!(*seen.lock(), ("ran: python3 main.py".to_owned(), "oops".to_owned()));
 }
+
+#[tokio::test]
+async fn upload_reports_a_command_that_stops_reading() {
+    let env = env().await;
+    let session = env.connect_trusted(&env.target(SshAuth::Password), Some("secret")).await.ok().unwrap();
+    // Incompressible and larger than the channel window: the command exits (status 3, `oops`)
+    // without reading it, as when the host has no gzip or the folder is not writable.
+    let mut state = 0x9e37_79b9_7f4a_7c15_u64;
+    let data: Vec<u8> = (0..8 << 20)
+        .map(|_| {
+            state ^= state << 13;
+            state ^= state >> 7;
+            state ^= state << 17;
+            state as u8
+        })
+        .collect();
+    let put = session.put("/home/dev/.openidea/server/openidea-server", &data);
+    let err = tokio::time::timeout(std::time::Duration::from_secs(20), put)
+        .await
+        .expect("the upload must end when the command exits")
+        .unwrap_err();
+    assert!(err.message.contains("oops"), "{}", err.message);
+}

crates/ide-vcs/Cargo.toml

@@ -15,6 +15,8 @@ serde_json.workspace = true
 specta.workspace = true
 gix = { workspace = true, features = ["sha1", "sha256", "status", "blob-diff", "revision", "index", "dirwalk", "parallel"] }
 tracing.workspace = true
+redb.workspace = true
+blake3.workspace = true
 tempfile.workspace = true
 which = "8"
 regex-lite = "0.1"

crates/ide-vcs/src/bek.rs

@@ -0,0 +1,192 @@
+//! Bek branch partitioning and bottom-up block merge.
+//! Adapted from JetBrains intellij-community BekBranchCreator/BekBranch/Merger,
+//! Copyright 2000-2026 JetBrains s.r.o. and contributors, Apache-2.0.
+use std::cmp::Reverse;
+use std::collections::{BinaryHeap, HashSet};
+
+pub(crate) fn sort(parents: &[Vec<usize>], times: &[i64], heads: &[usize]) -> Vec<usize> {
+    let n = parents.len();
+    let mut children = vec![Vec::new(); n];
+    for (i, ps) in parents.iter().enumerate() {
+        for &p in ps {
+            children[p].push(i);
+        }
+    }
+    let mut layout = vec![0usize; n];
+    let mut important = Vec::new();
+    let mut next_layout = 1;
+    for &head in heads {
+        if layout[head] != 0 {
+            continue;
+        }
+        important.push(head);
+        let mut stack = vec![head];
+        while let Some(&node) = stack.last() {
+            let first = layout[node] == 0;
+            if first {
+                layout[node] = next_layout;
+            }
+            if let Some(&p) = parents[node].iter().find(|&&p| layout[p] == 0) {
+                stack.push(p);
+            } else {
+                if first {
+                    next_layout += 1;
+                }
+                stack.pop();
+            }
+        }
+    }
+    let mut done = vec![false; n];
+    let mut restrictions = vec![HashSet::new(); n];
+    let mut releases = vec![Vec::new(); n];
+    let mut branches = Vec::new();
+    for head in important {
+        if done[head] {
+            continue;
+        }
+        let start = layout[head];
+        done[head] = true;
+        let mut branch = vec![head];
+        let mut stack = vec![head];
+        while let Some(&node) = stack.last() {
+            let mut next = None;
+            for &p in parents[node].iter().rev() {
+                if done[p] {
+                    if layout[p] < start && restrictions[node].insert(p) {
+                        releases[p].push(node);
+                    }
+                } else if layout[node] <= layout[p] && !children[p].iter().any(|&c| !done[c] && layout[c] <= layout[p])
+                {
+                    next = Some(p);
+                    break;
+                }
+            }
+            if let Some(p) = next {
+                done[p] = true;
+                branch.push(p);
+                stack.push(p);
+            } else {
+                stack.pop();
+            }
+        }
+        branches.push(branch);
+    }
+    let mut owner = vec![0usize; n];
+    for (b, nodes) in branches.iter().enumerate() {
+        for &node in nodes {
+            owner[node] = b;
+        }
+    }
+    let mut remaining: Vec<_> = branches.iter().map(Vec::len).collect();
+    let mut prepared = vec![None; branches.len()];
+    let mut queue = BinaryHeap::new();
+    let prepare = |b: usize,
+                   remaining: &[usize],
+                   restrictions: &[HashSet<usize>],
+                   prepared: &mut [Option<usize>],
+                   queue: &mut BinaryHeap<Reverse<(i64, usize)>>| {
+        let end = remaining[b];
+        if end == 0 || prepared[b].is_some() || !restrictions[branches[b][end - 1]].is_empty() {
+            return;
+        }
+        let mut start = end - 1;
+        while start > 0 {
+            let up = branches[b][start - 1];
+            let down = branches[b][start];
+            if !restrictions[up].is_empty() {
+                break;
+            }
+            let connects = parents[up].contains(&down);
+            if !(parents[up].len() > 1 && connects) {
+                if !connects {
+                    break;
+                }
+                let delta = times[up].abs_diff(times[down]);
+                if delta > 3 * 24 * 3600 || (start + 20 < end && delta > 4 * 3600) {
+                    break;
+                }
+            }
+            start -= 1;
+        }
+        prepared[b] = Some(start);
+        queue.push(Reverse((times[branches[b][start]], b)));
+    };
+    for b in 0..branches.len() {
+        prepare(b, &remaining, &restrictions, &mut prepared, &mut queue);
+    }
+    let mut result = vec![0; n];
+    let mut offset = n;
+    while let Some(Reverse((_, b))) = queue.pop() {
+        let start = prepared[b].take().unwrap();
+        let part = &branches[b][start..remaining[b]];
+        offset -= part.len();
+        result[offset..offset + part.len()].copy_from_slice(part);
+        remaining[b] = start;
+        let mut released = HashSet::from([b]);
+        for &node in part {
+            for &up in &releases[node] {
+                restrictions[up].remove(&node);
+                let branch = owner[up];
+                if restrictions[up].is_empty() && remaining[branch] > 0 && branches[branch][remaining[branch] - 1] == up
+                {
+                    released.insert(branch);
+                }
+            }
+        }
+        for branch in released {
+            prepare(branch, &remaining, &restrictions, &mut prepared, &mut queue);
+        }
+    }
+    debug_assert_eq!(offset, 0, "Bek must place every node");
+    result
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    #[test]
+    fn branch_blocks_preserve_every_edge_under_clock_skew_and_interleaved_refs() {
+        let mut seed = 17u64;
+        let mut random = || {
+            seed = seed.wrapping_mul(6364136223846793005).wrapping_add(1);
+            seed as usize
+        };
+        for _ in 0..200 {
+            let n = 70;
+            let parents: Vec<Vec<usize>> = (0..n)
+                .map(|i| {
+                    let mut ps = Vec::new();
+                    if i + 1 < n {
+                        for _ in 0..(random() % 3 + 1) {
+                            let p = i + 1 + random() % (n - i - 1);
+                            if !ps.contains(&p) {
+                                ps.push(p);
+                            }
+                        }
+                    }
+                    ps
+                })
+                .collect();
+            let times: Vec<_> = (0..n).map(|_| (random() % 1_000_000) as i64).collect();
+            let mut children = vec![0; n];
+            for ps in &parents {
+                for &p in ps {
+                    children[p] += 1;
+                }
+            }
+            let mut heads: Vec<_> = (0..n).filter(|&i| children[i] == 0 || i % 11 == 0).collect();
+            heads.sort_by_cached_key(|_| random());
+            let result = sort(&parents, &times, &heads);
+            assert_eq!(result.iter().copied().collect::<HashSet<_>>().len(), n);
+            let mut positions = vec![0; n];
+            for (i, &node) in result.iter().enumerate() {
+                positions[node] = i;
+            }
+            for (node, ps) in parents.iter().enumerate() {
+                for &p in ps {
+                    assert!(positions[node] < positions[p]);
+                }
+            }
+        }
+    }
+}

crates/ide-vcs/src/lib.rs

@@ -112,22 +112,64 @@ pub struct Commit {
     pub id: String,
     pub short_id: String,
     pub parents: Vec<String>,
+    /// Connections in the filtered graph; never use these as revision/diff parents.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub graph_parents: Option<Vec<String>>,
+    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    pub graph_dashed: Vec<bool>,
+    /// Repository-relative filename at this revision in rename-following history.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub history_path: Option<String>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub log_position: Option<u32>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub log_total: Option<u32>,
+    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    pub graph_boundary_parents: Vec<String>,
+    /// Reachability from HEAD, computed independently of the visible filters.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub on_current_branch: Option<bool>,
     pub author: String,
     pub email: String,
+    #[serde(default)]
+    pub committer: String,
+    #[serde(default)]
+    pub committer_email: String,
     pub time_ms: f64,
     pub summary: String,
     pub message: String,
+    #[serde(default)]
+    pub message_truncated: bool,
     pub refs: Vec<String>,
     /// Committer time (Log › View Options › Commit Timestamp).
     #[serde(default)]
     pub commit_time_ms: f64,
-    /// Per parent, under a user or text filter: the link passes commits the filter hides
-    /// (`parents` then name the nearest shown ancestors). Empty when no parent is rewritten.
+    /// Legacy alias of `graph_dashed`, indexed by displayed parents.
     #[serde(default)]
     #[specta(optional)]
     pub dashed: Vec<bool>,
 }
 
+#[derive(Clone, Debug, Serialize, Deserialize, Type)]
+#[serde(rename_all = "camelCase")]
+pub struct LogDetails {
+    pub message: String,
+    pub containing_branches: Vec<String>,
+    /// Git's verification code: G/U good, B bad, E error, N unsigned, X/Y expired, R revoked.
+    pub signature: String,
+    pub signer: String,
+    pub key: String,
+    pub fingerprint: String,
+}
+
+#[derive(Clone, Debug, Default, Serialize, Deserialize, Type)]
+#[serde(rename_all = "camelCase")]
+pub struct LogIndexProgress {
+    pub indexed: u32,
+    pub total: u32,
+    pub running: bool,
+}
+
 /// Order of the Git Log (Graph Options › Sort).
 #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize, Type)]
 #[serde(rename_all = "camelCase")]
@@ -137,13 +179,29 @@ pub enum LogOrder {
     Topo,
     /// `--date-order`: commit time, but never a parent before its children.
     Date,
+    // Topological grouping with incoming merge parents visited before the main line.
+    Standard,
 }
 
 #[derive(Clone, Debug, Default, Serialize, Deserialize, Type)]
 #[serde(rename_all = "camelCase")]
 pub struct LogQuery {
+    #[serde(default)]
+    pub speed_search: Option<String>,
+    #[serde(default)]
+    pub search_fields: Vec<String>,
+    /// Jump directly to an indexed window containing this commit (50 rows of context).
+    #[serde(default)]
+    pub seek: Option<String>,
+    #[serde(default)]
+    pub retain_until: Option<String>,
     pub branch: Option<String>,
     pub path: Option<ide_core::IpcPath>,
+    #[serde(default)]
+    pub paths: Vec<ide_core::IpcPath>,
+    /// File history follows renames; structure filters retain fixed paths.
+    #[serde(default)]
+    pub follow: bool,
     pub author: Option<String>,
     pub text: Option<String>,
     pub skip: u32,
@@ -152,6 +210,9 @@ pub struct LogQuery {
     /// not the left). Takes precedence over `branch`.
     #[serde(default)]
     pub range: Option<String>,
+    /// Additional ranges unioned with each other and with selected branches.
+    #[serde(default)]
+    pub ranges: Vec<String>,
     /// `text` is a regular expression (Log filter `.*`).
     #[serde(default)]
     pub text_regex: bool,
@@ -165,6 +226,8 @@ pub struct LogQuery {
     #[serde(default)]
     pub authors: Vec<String>,
     #[serde(default)]
+    pub authors_exact: bool,
+    #[serde(default)]
     pub order: LogOrder,
     /// Follow only the first parent of merges (`--first-parent`).
     #[serde(default)]
@@ -179,6 +242,13 @@ pub struct LogQuery {
     pub since_ms: Option<f64>,
     #[serde(default)]
     pub until_ms: Option<f64>,
+    #[serde(default)]
+    pub request: Option<ide_core::RequestId>,
+    #[serde(default)]
+    pub summary_only: bool,
+    /// Inclusive refresh boundary. Clients join only verified linear prefixes.
+    #[serde(default)]
+    pub stop_at: Option<String>,
 }
 
 #[derive(Clone, Debug, Serialize, Deserialize, Type)]
@@ -487,6 +557,7 @@ pub struct ChangelistState {
     pub files: std::collections::BTreeMap<String, String>,
 }
 
+mod bek;
 mod blame;
 mod block_history;
 pub mod changelists;
@@ -496,6 +567,7 @@ mod diff;
 mod history;
 mod ignore;
 mod index_writes;
+mod log_index;
 mod manage;
 mod ops;
 mod patch;
@@ -599,6 +671,9 @@ pub struct Repo {
     git_dir: PathBuf,
     inner: std::sync::Mutex<repo::Cache>,
     ignored: std::sync::RwLock<IgnoredNames>,
+    log_index: std::sync::Mutex<log_index::LogIndex>,
+    index_progress: std::sync::Mutex<LogIndexProgress>,
+    log_signatures: std::sync::Mutex<std::collections::HashMap<String, LogDetails>>,
 }
 
 impl Repo {
@@ -738,7 +813,183 @@ impl Repo {
     /// `refs` decorations are `HEAD`, branch names (`main`, `origin/main`) and `tag: <name>`.
     pub fn log(&self, query: &LogQuery) -> IdeResult<Vec<Commit>> {
         let _scope = crate::ExecutionScope::enter(self.execution_allowed.load(std::sync::atomic::Ordering::Acquire));
-        history::log(self, query)
+        history::log(self, query, &CancellationToken::new())
+    }
+    pub fn log_cancellable(&self, query: &LogQuery, cancel: &CancellationToken) -> IdeResult<Vec<Commit>> {
+        let _scope = crate::ExecutionScope::enter(self.execution_allowed.load(std::sync::atomic::Ordering::Acquire));
+        history::log(self, query, cancel)
+    }
+    /// Enables the disposable, content-addressed log cache outside the worktree.
+    pub fn enable_log_index(&self, cache_dir: &Path) {
+        let key = blake3::hash(self.git_dir.to_string_lossy().as_bytes()).to_hex().to_string();
+        self.log_index.lock().unwrap_or_else(|p| p.into_inner()).open(&cache_dir.join(key));
+    }
+    /// Reference names and peeled commit ids, including tags and detached HEAD.
+    pub fn log_refs(&self) -> IdeResult<std::collections::BTreeMap<String, String>> {
+        let repo = self.gix()?;
+        Ok(history::decorations(&repo)?
+            .into_iter()
+            .flat_map(|(id, names)| names.into_iter().map(move |name| (name, id.to_string())))
+            .collect())
+    }
+    pub fn log_users(&self) -> IdeResult<Vec<String>> {
+        let _scope = crate::ExecutionScope::enter(self.execution_allowed.load(std::sync::atomic::Ordering::Acquire));
+        let out = cli::run(self.root(), &["log", "--all", "--format=%an <%ae>"], None)?;
+        Ok(out
+            .stdout_str()
+            .lines()
+            .filter(|line| !line.is_empty())
+            .map(str::to_string)
+            .collect::<std::collections::BTreeSet<_>>()
+            .into_iter()
+            .collect())
+    }
+    pub fn log_index_progress(&self) -> LogIndexProgress {
+        self.index_progress.lock().unwrap_or_else(|p| p.into_inner()).clone()
+    }
+
+    /// Incremental persistent inverted index; completed objects survive cancellation/restart.
+    pub fn index_log(&self, cancel: &CancellationToken) -> IdeResult<LogIndexProgress> {
+        {
+            let mut progress = self.index_progress.lock().unwrap_or_else(|p| p.into_inner());
+            if progress.running {
+                return Ok(progress.clone());
+            }
+            progress.running = true;
+        }
+        let result = (|| {
+            let repo = self.gix()?;
+            let out = cli::run_cancellable(self.root(), &["rev-list", "--all", "--topo-order"], cancel)?;
+            let ids: Vec<_> = out
+                .stdout_str()
+                .lines()
+                .map(|id| gix::ObjectId::from_hex(id.as_bytes()).map_err(repo::gx))
+                .collect::<IdeResult<_>>()?;
+            {
+                let mut p = self.index_progress.lock().unwrap_or_else(|p| p.into_inner());
+                p.total = ids.len() as u32;
+                p.indexed = 0;
+            }
+            for (i, id) in ids.iter().enumerate() {
+                if cancel.is_cancelled() {
+                    return Err(ide_core::IdeError::cancelled());
+                }
+                let indexed = self.log_index.lock().unwrap_or_else(|p| p.into_inner()).indexed(&id.to_string());
+                if !indexed {
+                    let files = self.commit_files(&id.to_string())?;
+                    let paths =
+                        files.into_iter().flat_map(|f| std::iter::once(f.path).chain(f.old_path)).collect::<Vec<_>>();
+                    let mut index = self.log_index.lock().unwrap_or_else(|p| p.into_inner());
+                    let c = index.get(&repo, *id)?;
+                    let message = index.message(&repo, *id)?;
+                    index.index_commit(&c.id, &message, &c.author, &c.email, &paths);
+                    if i % 100 == 0 {
+                        index.flush();
+                    }
+                }
+                self.index_progress.lock().unwrap_or_else(|p| p.into_inner()).indexed = i as u32 + 1;
+            }
+            Ok(())
+        })();
+        self.log_index.lock().unwrap_or_else(|p| p.into_inner()).flush();
+        self.index_progress.lock().unwrap_or_else(|p| p.into_inner()).running = false;
+        result?;
+        Ok(self.log_index_progress())
+    }
+
+    pub fn log_details(&self, revision: &str) -> IdeResult<LogDetails> {
+        self.log_details_cancellable(revision, &CancellationToken::new())
+    }
+    pub fn log_details_cancellable(&self, revision: &str, cancel: &CancellationToken) -> IdeResult<LogDetails> {
+        let allowed = self.execution_allowed.load(std::sync::atomic::Ordering::Acquire);
+        let _scope = crate::ExecutionScope::enter(allowed);
+        let repo = self.gix()?;
+        let object =
+            repo.find_object(repo::resolve(&repo, revision)?).map_err(repo::gx)?.peel_to_commit().map_err(repo::gx)?;
+        let commit_id = object.id;
+        let id = commit_id.to_string();
+        let contains = format!("--contains={id}");
+        let branches =
+            cli::run_cancellable(self.root(), &["branch", "-a", &contains, "--format=%(refname:short)"], cancel)?;
+        let cache_key = format!("{allowed}:{id}");
+        let cached = self.log_signatures.lock().unwrap_or_else(|p| p.into_inner()).get(&cache_key).cloned();
+        let mut details = if let Some(details) = cached {
+            details
+        } else {
+            let end = object.data.windows(2).position(|s| s == b"\n\n").unwrap_or(object.data.len());
+            let headers = &object.data[..end];
+            let signed = headers.windows(8).any(|s| s == b"\ngpgsig ") || headers.windows(8).any(|s| s == b"\ngpgsig-");
+            let output = if allowed && signed {
+                Some(cli::run_cancellable(
+                    self.root(),
+                    &["log", "-1", "--format=%G?%x00%GS%x00%GK%x00%GF", "--end-of-options", &id],
+                    cancel,
+                )?)
+            } else {
+                None
+            };
+            let text = output.as_ref().map(|out| out.stdout_str()).unwrap_or_default();
+            let fields: Vec<_> = text.trim_end().split('\0').collect();
+            let message = {
+                let mut index = self.log_index.lock().unwrap_or_else(|p| p.into_inner());
+                let message = index.message(&repo, commit_id)?;
+                index.flush();
+                message
+            };
+            let details = LogDetails {
+                message,
+                containing_branches: Vec::new(),
+                signature: if !signed {
+                    "N".into()
+                } else {
+                    fields.first().filter(|s| !s.is_empty()).unwrap_or(&"E").to_string()
+                },
+                signer: fields.get(1).unwrap_or(&"").to_string(),
+                key: fields.get(2).unwrap_or(&"").to_string(),
+                fingerprint: fields.get(3).unwrap_or(&"").to_string(),
+            };
+            self.log_signatures.lock().unwrap_or_else(|p| p.into_inner()).insert(cache_key, details.clone());
+            details
+        };
+        details.containing_branches =
+            branches.stdout_str().lines().filter(|s| !s.ends_with("/HEAD")).map(str::to_string).collect();
+        Ok(details)
+    }
+
+    /// Lists one immutable revision directory. Directory names end in `/`.
+    pub fn revision_children(&self, revision: &str, directory: &str) -> IdeResult<Vec<String>> {
+        let repo = self.gix()?;
+        let id = repo::resolve(&repo, revision)?.to_string();
+        let directory = self.rel_path(std::path::Path::new(directory))?;
+        let tree = if directory.is_empty() { id } else { format!("{id}:{directory}") };
+        let out = cli::run(self.root(), &["ls-tree", "-z", "--", &tree], None)?;
+        Ok(out
+            .stdout
+            .split(|b| *b == 0)
+            .filter_map(|line| {
+                let split = line.iter().position(|b| *b == b'\t')?;
+                let name = String::from_utf8_lossy(&line[split + 1..]);
+                let dir = line.starts_with(b"040000 ");
+                Some(format!(
+                    "{}{name}{}",
+                    if directory.is_empty() { String::new() } else { format!("{directory}/") },
+                    if dir { "/" } else { "" }
+                ))
+            })
+            .collect())
+    }
+
+    pub fn revision_files(&self, revision: &str) -> IdeResult<Vec<String>> {
+        let _scope = crate::ExecutionScope::enter(self.execution_allowed.load(std::sync::atomic::Ordering::Acquire));
+        let repo = self.gix()?;
+        let id = repo::resolve(&repo, revision)?.to_string();
+        let out = cli::run(self.root(), &["ls-tree", "-r", "-z", "--name-only", "--", &id], None)?;
+        Ok(out
+            .stdout
+            .split(|b| *b == 0)
+            .filter(|p| !p.is_empty())
+            .map(|p| String::from_utf8_lossy(p).into_owned())
+            .collect())
     }
     /// Files changed by `commit` relative to its first parent (renames detected).
     pub fn commit_files(&self, commit: &str) -> IdeResult<Vec<ChangedFile>> {

crates/ide-vcs/src/log_index.rs

@@ -0,0 +1,385 @@
+//! Immutable commit metadata, persisted by object id. Ref decorations and graph
+//! projections are deliberately never cached as commit metadata.
+
+use crate::Commit;
+use crate::repo::{gx, to_string};
+use gix::ObjectId;
+use gix::bstr::ByteSlice;
+use ide_core::IdeResult;
+use redb::{Database, MultimapTableDefinition, ReadableDatabase, TableDefinition};
+use std::collections::{HashMap, HashSet};
+use std::path::Path;
+use std::sync::{Arc, Mutex, OnceLock, Weak};
+use std::time::SystemTime;
+
+const COMMITS: TableDefinition<&str, &[u8]> = TableDefinition::new("summaries-v2");
+const MESSAGES: TableDefinition<&str, &str> = TableDefinition::new("messages-v1");
+const PATHS: TableDefinition<&str, &[u8]> = TableDefinition::new("paths-v2");
+const POSTINGS: MultimapTableDefinition<&str, &str> = MultimapTableDefinition::new("search-v1");
+const INDEXED: TableDefinition<&str, bool> = TableDefinition::new("indexed-v1");
+
+pub(crate) struct IndexedView {
+    pub commits: Vec<Commit>,
+    pub positions: HashMap<String, usize>,
+}
+impl IndexedView {
+    pub fn new(commits: Vec<Commit>) -> Self {
+        let positions = commits.iter().enumerate().map(|(i, c)| (c.id.clone(), i)).collect();
+        Self { commits, positions }
+    }
+}
+
+#[derive(Default)]
+pub(crate) struct LogIndex {
+    opened: bool,
+    db: Option<Arc<Database>>,
+    memory: HashMap<ObjectId, Arc<Commit>>,
+    dirty: Vec<Arc<Commit>>,
+    dirty_messages: Vec<(String, String)>,
+    dirty_search: Vec<(String, Vec<String>)>,
+    path_memory: HashMap<(ObjectId, String), Option<(ObjectId, u16)>>,
+    dirty_paths: Vec<(String, Option<(String, u16)>)>,
+    pub head: Option<(ObjectId, Option<SystemTime>)>,
+    pub reachable: HashSet<ObjectId>,
+    pub views: HashMap<String, Arc<IndexedView>>,
+    pub nodes: HashMap<ObjectId, (Vec<ObjectId>, i64)>,
+    pub shallow: HashSet<ObjectId>,
+}
+
+impl LogIndex {
+    /// A permanent DAG: refresh discovers only new objects, then joins arbitrary
+    /// changed tips against known ancestry. Reachability is recomputed for resets/deleted refs.
+    pub fn graph(
+        &mut self,
+        repo: &gix::Repository,
+        tips: &[ObjectId],
+        shallow: &HashSet<ObjectId>,
+        first_parent: bool,
+        cancel: &ide_core::CancellationToken,
+    ) -> IdeResult<Vec<ObjectId>> {
+        if &self.shallow != shallow {
+            self.nodes.clear();
+            self.shallow = shallow.clone();
+        }
+        let mut pending = tips.to_vec();
+        while let Some(id) = pending.pop() {
+            if cancel.is_cancelled() {
+                return Err(ide_core::IdeError::cancelled());
+            }
+            if self.nodes.contains_key(&id) {
+                continue;
+            }
+            let record = self.get(repo, id)?;
+            let parents: Vec<_> = if shallow.contains(&id) {
+                Vec::new()
+            } else {
+                record.parents.iter().map(|s| ObjectId::from_hex(s.as_bytes()).map_err(gx)).collect::<IdeResult<_>>()?
+            };
+            pending.extend(parents.iter().copied());
+            self.nodes.insert(id, (parents, (record.commit_time_ms / 1000.0) as i64));
+        }
+        let mut seen = HashSet::new();
+        let mut ids = Vec::new();
+        let mut pending = tips.to_vec();
+        while let Some(id) = pending.pop() {
+            if !seen.insert(id) {
+                continue;
+            }
+            ids.push(id);
+            if let Some((parents, _)) = self.nodes.get(&id) {
+                pending.extend(parents.iter().take(if first_parent { 1 } else { usize::MAX }).rev().copied());
+            }
+        }
+        Ok(ids)
+    }
+    pub fn indexed(&self, id: &str) -> bool {
+        self.db
+            .as_ref()
+            .and_then(|db| {
+                let txn = db.begin_read().ok()?;
+                let table = txn.open_table(INDEXED).ok()?;
+                Some(table.get(id).ok()??.value())
+            })
+            .unwrap_or(false)
+    }
+
+    pub fn index_commit(&mut self, id: &str, message: &str, author: &str, email: &str, paths: &[String]) {
+        let mut keys: HashSet<String> = Self::grams(message).into_iter().map(|s| format!("m:{s}")).collect();
+        for user in [author, email, email.split('@').next().unwrap_or(email)] {
+            keys.insert(format!("u:{}", normalize_user(user)));
+        }
+        for path in paths {
+            keys.insert(format!("p:{path}"));
+        }
+        self.dirty_search.push((id.into(), keys.into_iter().collect()));
+    }
+
+    fn grams(text: &str) -> Vec<String> {
+        let chars: Vec<_> = text.to_lowercase().chars().collect();
+        chars.windows(3).map(|s| s.iter().collect()).collect::<HashSet<_>>().into_iter().collect()
+    }
+
+    /// Missing/unindexed commits are always checked directly by the caller.
+    pub fn message_candidates(&self, text: &str) -> Option<HashSet<String>> {
+        let grams = Self::grams(text);
+        if grams.is_empty() {
+            return None;
+        }
+        let db = self.db.as_ref()?;
+        let txn = db.begin_read().ok()?;
+        let table = txn.open_multimap_table(POSTINGS).ok()?;
+        let mut candidates: Option<HashSet<String>> = None;
+        for gram in grams {
+            let values = table.get(format!("m:{gram}").as_str()).ok()?;
+            let ids: HashSet<_> = values.filter_map(Result::ok).map(|s| s.value().to_string()).collect();
+            candidates = Some(match candidates {
+                Some(old) => old.intersection(&ids).cloned().collect(),
+                None => ids,
+            });
+            if candidates.as_ref().is_some_and(HashSet::is_empty) {
+                break;
+            }
+        }
+        Some(candidates.unwrap_or_default())
+    }
+
+    pub fn user_candidates(&self, authors: &[String]) -> Option<HashSet<String>> {
+        let txn = self.db.as_ref()?.begin_read().ok()?;
+        let table = txn.open_multimap_table(POSTINGS).ok()?;
+        let mut ids = HashSet::new();
+        for author in authors {
+            let name = author.split('<').next().unwrap_or(author).trim();
+            let email = author.split('<').nth(1).map(|s| s.trim_end_matches('>')).unwrap_or(author);
+            for alias in [name, email, email.split('@').next().unwrap_or(email)] {
+                for value in table.get(format!("u:{}", normalize_user(alias)).as_str()).ok()?.filter_map(Result::ok) {
+                    ids.insert(value.value().to_string());
+                }
+            }
+        }
+        Some(ids)
+    }
+
+    pub fn path_candidates(&self, paths: &[String]) -> Option<HashSet<String>> {
+        let txn = self.db.as_ref()?.begin_read().ok()?;
+        let table = txn.open_multimap_table(POSTINGS).ok()?;
+        let mut ids = HashSet::new();
+        for path in paths {
+            for value in table.get(format!("p:{path}").as_str()).ok()?.filter_map(Result::ok) {
+                ids.insert(value.value().to_string());
+            }
+            let prefix = format!("p:{path}/");
+            let end = format!("{prefix}{}", char::MAX);
+            for row in table.range(prefix.as_str()..end.as_str()).ok()?.filter_map(Result::ok) {
+                for value in row.1.filter_map(Result::ok) {
+                    ids.insert(value.value().to_string());
+                }
+            }
+        }
+        Some(ids)
+    }
+    pub fn open(&mut self, dir: &Path) {
+        if self.opened {
+            return;
+        }
+        self.opened = true;
+        // Several windows can read the same worktree; redb permits one owning
+        // handle per file, shared here rather than silently disabling its index.
+        static DATABASES: OnceLock<Mutex<HashMap<std::path::PathBuf, Weak<Database>>>> = OnceLock::new();
+        let path = dir.join("commits.redb");
+        let mut databases = DATABASES.get_or_init(Mutex::default).lock().unwrap_or_else(|p| p.into_inner());
+        self.db = databases.get(&path).and_then(Weak::upgrade).or_else(|| {
+            let db = Arc::new(std::fs::create_dir_all(dir).ok().and_then(|_| Database::create(&path).ok())?);
+            databases.insert(path, Arc::downgrade(&db));
+            Some(db)
+        });
+    }
+
+    pub fn get(&mut self, repo: &gix::Repository, id: ObjectId) -> IdeResult<Arc<Commit>> {
+        if let Some(commit) = self.memory.get(&id) {
+            return Ok(commit.clone());
+        }
+        let key = id.to_string();
+        let cached = self.db.as_ref().and_then(|db| {
+            let txn = db.begin_read().ok()?;
+            let table = txn.open_table(COMMITS).ok()?;
+            let value = table.get(key.as_str()).ok()??;
+            serde_json::from_slice::<Commit>(value.value()).ok().filter(|c| c.id == key)
+        });
+        let commit = if let Some(commit) = cached {
+            Arc::new(commit)
+        } else {
+            let commit = repo.find_commit(id).map_err(gx)?;
+            let author = commit.author().map_err(gx)?;
+            let committer = commit.committer().map_err(gx)?;
+            let raw = commit.message_raw_sloppy();
+            let summary = raw.split(|b| *b == b'\n').find(|l| !l.trim().is_empty()).unwrap_or_default().trim();
+            let summary_text = to_string(summary.as_bstr());
+            let record = Arc::new(Commit {
+                id: key.clone(),
+                short_id: key[..key.len().min(8)].to_string(),
+                parents: commit.parent_ids().map(|p| p.to_string()).collect(),
+                graph_parents: None,
+                graph_dashed: Vec::new(),
+                dashed: Vec::new(),
+                on_current_branch: None,
+                author: to_string(author.name.trim().as_bstr()),
+                email: to_string(author.email.trim().as_bstr()),
+                committer: to_string(committer.name.trim().as_bstr()),
+                committer_email: to_string(committer.email.trim().as_bstr()),
+                time_ms: author.time().map(|t| t.seconds as f64 * 1000.0).unwrap_or(0.0),
+                commit_time_ms: committer.time().map(|t| t.seconds as f64 * 1000.0).unwrap_or(0.0),
+                summary: summary_text.clone(),
+                message: summary_text,
+                message_truncated: raw.trim() != summary,
+                history_path: None,
+                log_position: None,
+                log_total: None,
+                graph_boundary_parents: Vec::new(),
+                refs: Vec::new(),
+            });
+            if self.db.is_some() {
+                self.dirty.push(record.clone());
+            }
+            record
+        };
+        // Keep hot pages in memory; older metadata stays in the persistent index.
+        if self.memory.len() >= 4096 {
+            self.flush();
+            self.memory.clear();
+        }
+        self.memory.insert(id, commit.clone());
+        Ok(commit)
+    }
+
+    pub fn message(&mut self, repo: &gix::Repository, id: ObjectId) -> IdeResult<String> {
+        if let Some((_, message)) = self.dirty_messages.iter().find(|(key, _)| key == &id.to_string()) {
+            return Ok(message.clone());
+        }
+        let key = id.to_string();
+        let cached = self.db.as_ref().and_then(|db| {
+            let txn = db.begin_read().ok()?;
+            let table = txn.open_table(MESSAGES).ok()?;
+            Some(table.get(key.as_str()).ok()??.value().to_string())
+        });
+        if let Some(message) = cached {
+            return Ok(message);
+        }
+        let message = to_string(repo.find_commit(id).map_err(gx)?.message_raw_sloppy()).trim_end().to_string();
+        if self.db.is_some() {
+            self.dirty_messages.push((key, message.clone()));
+        }
+        Ok(message)
+    }
+
+    pub fn flush(&mut self) {
+        if self.dirty.is_empty()
+            && self.dirty_paths.is_empty()
+            && self.dirty_messages.is_empty()
+            && self.dirty_search.is_empty()
+        {
+            return;
+        }
+        let result = (|| -> Result<(), Box<dyn std::error::Error>> {
+            let Some(db) = &self.db else {
+                return Ok(());
+            };
+            let txn = db.begin_write()?;
+            {
+                let mut table = txn.open_table(COMMITS)?;
+                for commit in &self.dirty {
+                    let bytes = serde_json::to_vec(commit.as_ref())?;
+                    table.insert(commit.id.as_str(), bytes.as_slice())?;
+                }
+            }
+            {
+                let mut table = txn.open_table(PATHS)?;
+                for (key, value) in &self.dirty_paths {
+                    let bytes = serde_json::to_vec(value)?;
+                    table.insert(key.as_str(), bytes.as_slice())?;
+                }
+            }
+            {
+                let mut table = txn.open_table(MESSAGES)?;
+                for (id, message) in &self.dirty_messages {
+                    table.insert(id.as_str(), message.as_str())?;
+                }
+            }
+            {
+                let mut postings = txn.open_multimap_table(POSTINGS)?;
+                let mut indexed = txn.open_table(INDEXED)?;
+                for (id, keys) in &self.dirty_search {
+                    for key in keys {
+                        postings.insert(key.as_str(), id.as_str())?;
+                    }
+                    indexed.insert(id.as_str(), true)?;
+                }
+            }
+            txn.commit()?;
+            Ok(())
+        })();
+        if let Err(error) = result {
+            tracing::warn!("Git log cache write failed: {error}");
+        }
+        self.dirty_messages.clear();
+        self.dirty_search.clear();
+        self.dirty.clear();
+        self.dirty_paths.clear();
+    }
+
+    pub fn path_entry(
+        &mut self,
+        repo: &gix::Repository,
+        id: ObjectId,
+        path: &str,
+    ) -> IdeResult<Option<(ObjectId, u16)>> {
+        let memory_key = (id, path.to_string());
+        if let Some(value) = self.path_memory.get(&memory_key) {
+            return Ok(*value);
+        }
+        let key = format!("{id}\0{path}");
+        let cached = self.db.as_ref().and_then(|db| {
+            let txn = db.begin_read().ok()?;
+            let table = txn.open_table(PATHS).ok()?;
+            let value = table.get(key.as_str()).ok()??;
+            serde_json::from_slice::<Option<(String, u16)>>(value.value()).ok()
+        });
+        let cached = match cached {
+            Some(None) => Some(None),
+            Some(Some((hex, mode))) => ObjectId::from_hex(hex.as_bytes()).ok().map(|id| Some((id, mode))),
+            None => None,
+        };
+        let value = if let Some(value) = cached {
+            value
+        } else {
+            let tree = repo.find_commit(id).map_err(gx)?.tree().map_err(gx)?;
+            let value = tree
+                .lookup_entry_by_path(Path::new(path))
+                .map_err(gx)?
+                .map(|entry| (entry.object_id(), entry.mode().value()));
+            if self.db.is_some() {
+                self.dirty_paths.push((key, value.map(|(id, mode)| (id.to_string(), mode))));
+            }
+            value
+        };
+        if self.path_memory.len() >= 4096 {
+            self.flush();
+            self.path_memory.clear();
+        }
+        self.path_memory.insert(memory_key, value);
+        Ok(value)
+    }
+}
+
+pub(crate) fn normalize_user(user: &str) -> String {
+    user.chars().filter(|c| c.is_alphanumeric()).flat_map(char::to_lowercase).collect()
+}
+
+pub(crate) fn matches_user(query: &str, name: &str, email: &str) -> bool {
+    let query_name = query.split('<').next().unwrap_or(query).trim();
+    let query_email = query.split('<').nth(1).map(|s| s.trim_end_matches('>')).unwrap_or(query);
+    let target =
+        [normalize_user(name), normalize_user(email), normalize_user(email.split('@').next().unwrap_or(email))];
+    [query_name, query_email, query_email.split('@').next().unwrap_or(query_email)]
+        .iter()
+        .any(|alias| target.contains(&normalize_user(alias)))
+}

crates/ide-vcs/src/repo.rs

@@ -64,6 +64,9 @@ pub(crate) fn discover(path: &Path) -> IdeResult<Option<Repo>> {
         git_dir,
         inner: std::sync::Mutex::new(cache),
         ignored: Default::default(),
+        log_index: Default::default(),
+        index_progress: Default::default(),
+        log_signatures: Default::default(),
     }))
 }
 

crates/ide-vcs/tests/log_projection.rs

@@ -0,0 +1,438 @@
+use ide_vcs::{LogOrder, LogQuery, Repo};
+use std::io::Write;
+use std::path::Path;
+use std::process::{Command, Stdio};
+
+fn git(dir: &Path, args: &[&str]) -> String {
+    let out = Command::new("git")
+        .current_dir(dir)
+        .args([
+            "-c",
+            "init.defaultBranch=main",
+            "-c",
+            "user.name=Test",
+            "-c",
+            "[email protected]",
+            "-c",
+            "commit.gpgsign=false",
+        ])
+        .args(args)
+        .output()
+        .unwrap();
+    assert!(out.status.success(), "{}", String::from_utf8_lossy(&out.stderr));
+    String::from_utf8_lossy(&out.stdout).trim().to_string()
+}
+
+fn commit(dir: &Path, file: &str, message: &str) -> String {
+    std::fs::write(dir.join(file), message).unwrap();
+    git(dir, &["add", "-A"]);
+    git(dir, &["commit", "-qm", message]);
+    git(dir, &["rev-parse", "HEAD"])
+}
+
+#[test]
+fn branch_and_independent_ranges_form_a_union() {
+    let tmp = tempfile::tempdir().unwrap();
+    let dir = tmp.path();
+    git(dir, &["init", "-q"]);
+    let root = commit(dir, "a", "root");
+    let first = commit(dir, "a", "first");
+    let second = commit(dir, "a", "second");
+    let third = commit(dir, "a", "third");
+    git(dir, &["checkout", "-qb", "side", &root]);
+    let side = commit(dir, "b", "side");
+    let repo = Repo::discover(dir).unwrap().unwrap();
+    for order in [LogOrder::Topo, LogOrder::Date, LogOrder::Standard] {
+        let log = repo
+            .log(&LogQuery {
+                branches: vec!["side".into()],
+                ranges: vec![format!("{root}..{first}"), format!("{second}..{third}")],
+                order,
+                ..Default::default()
+            })
+            .unwrap();
+        let got: std::collections::HashSet<_> = log.iter().map(|c| c.id.clone()).collect();
+        assert_eq!(got, [root.clone(), first.clone(), third.clone(), side.clone()].into());
+        let ranges = repo
+            .log(&LogQuery {
+                ranges: vec![format!("{root}..{first}"), format!("{second}..{third}")],
+                order,
+                ..Default::default()
+            })
+            .unwrap();
+        assert_eq!(
+            ranges.iter().map(|c| c.id.clone()).collect::<std::collections::HashSet<_>>(),
+            [first.clone(), third.clone()].into()
+        );
+        let positions: std::collections::HashMap<_, _> =
+            log.iter().enumerate().map(|(i, c)| (c.id.as_str(), i)).collect();
+        for (i, c) in log.iter().enumerate() {
+            for p in c.graph_parents.as_ref().unwrap() {
+                assert!(positions.get(p.as_str()).is_none_or(|p| *p > i));
+            }
+        }
+    }
+}
+
+#[test]
+fn lazy_summaries_seek_and_index_survive_refresh_and_restart() {
+    let tmp = tempfile::tempdir().unwrap();
+    let dir = tmp.path();
+    git(dir, &["init", "-q"]);
+    let mut ids = Vec::new();
+    for i in 0..70 {
+        ids.push(commit(dir, "a", &format!("summary {i}\n\nneedle body {i}")));
+    }
+    let cache = tempfile::tempdir().unwrap();
+    let repo = Repo::discover(dir).unwrap().unwrap();
+    repo.enable_log_index(cache.path());
+    let query = LogQuery { summary_only: true, limit: 5, ..Default::default() };
+    let page = repo.log(&query).unwrap();
+    assert_eq!(page[0].message, "summary 69");
+    assert!(page[0].message_truncated);
+    assert_eq!(page[0].log_position, Some(0));
+    assert_eq!(page[0].log_total, Some(70));
+    let window = repo.log(&LogQuery { seek: Some(ids[5].clone()), limit: 20, ..query.clone() }).unwrap();
+    assert!(window.iter().any(|c| c.id == ids[5]));
+    assert!(window[0].log_position.unwrap() > 0);
+    assert!(repo.log(&LogQuery { request: Some(ide_core::RequestId(1)), ..query.clone() }).is_ok());
+    let cancel = ide_core::CancellationToken::new();
+    cancel.cancel();
+    assert!(repo.log_cancellable(&query, &cancel).is_err());
+    let progress = repo.index_log(&ide_core::CancellationToken::new()).unwrap();
+    assert_eq!((progress.indexed, progress.total, progress.running), (70, 70, false));
+    assert_eq!(repo.log(&LogQuery { text: Some("needle body 5".into()), ..query.clone() }).unwrap().len(), 5);
+    let new = commit(dir, "b", "new head");
+    let refreshed = repo.log(&LogQuery { retain_until: Some(ids[0].clone()), ..query.clone() }).unwrap();
+    assert_eq!(refreshed[0].id, new);
+    assert_eq!(refreshed.len(), 71);
+    drop(repo);
+    let repo = Repo::discover(dir).unwrap().unwrap();
+    repo.enable_log_index(cache.path());
+    let hit = repo.log(&LogQuery { text: Some("needle body 69".into()), ..query }).unwrap();
+    assert_eq!(hit[0].id, ids[69]);
+    assert_eq!(repo.log_details(&ids[69]).unwrap().message, "summary 69\n\nneedle body 69");
+    assert_eq!(repo.log_details(&ids[69]).unwrap().signature, "N");
+}
+
+#[test]
+fn followed_history_carries_the_filename_at_each_revision() {
+    let tmp = tempfile::tempdir().unwrap();
+    let dir = tmp.path();
+    git(dir, &["init", "-q"]);
+    let first = commit(dir, "old.txt", "original");
+    git(dir, &["mv", "old.txt", "new.txt"]);
+    git(dir, &["commit", "-qm", "rename"]);
+    let renamed = git(dir, &["rev-parse", "HEAD"]);
+    let tip = commit(dir, "new.txt", "latest");
+    let repo = Repo::discover(dir).unwrap().unwrap();
+    let log = repo.log(&LogQuery { path: Some("new.txt".into()), follow: true, ..Default::default() }).unwrap();
+    assert_eq!(
+        log.iter().map(|c| (c.id.as_str(), c.history_path.as_deref())).collect::<Vec<_>>(),
+        vec![(tip.as_str(), Some("new.txt")), (renamed.as_str(), Some("new.txt")), (first.as_str(), Some("old.txt"))]
+    );
+    assert_eq!(repo.revision_children(&first, "").unwrap(), vec!["old.txt"]);
+}
+
+#[test]
+fn detail_filters_connect_visible_ancestors_without_changing_revision_parents() {
+    let tmp = tempfile::tempdir().unwrap();
+    let dir = tmp.path();
+    git(dir, &["init", "-q"]);
+    let a = commit(dir, "a", "keep root");
+    commit(dir, "b", "hidden middle");
+    git(dir, &["commit", "--amend", "--no-edit", "--author=Other <[email protected]>"]);
+    let b = git(dir, &["rev-parse", "HEAD"]);
+    let c = commit(dir, "a", "keep tip");
+    let repo = Repo::discover(dir).unwrap().unwrap();
+    for q in [
+        LogQuery { text: Some("keep".into()), ..Default::default() },
+        LogQuery { path: Some("a".into()), ..Default::default() },
+        LogQuery { authors: vec!["Test".into()], authors_exact: true, ..Default::default() },
+    ] {
+        let page = repo.log(&LogQuery { limit: 1, ..q.clone() }).unwrap();
+        assert_eq!(page[0].id, c);
+        assert_eq!(page[0].parents, vec![b.clone()]);
+        assert_eq!(page[0].graph_parents, Some(vec![a.clone()]));
+        assert_eq!(page[0].graph_dashed, vec![true]);
+        assert_eq!(page[0].on_current_branch, Some(true));
+        let next = repo.log(&LogQuery { skip: 1, limit: 1, ..q }).unwrap();
+        assert_eq!(next[0].id, a);
+        assert_eq!(next[0].graph_parents, Some(vec![]));
+    }
+}
+
+#[test]
+fn all_history_includes_commits_reachable_only_from_tags() {
+    let tmp = tempfile::tempdir().unwrap();
+    let dir = tmp.path();
+    git(dir, &["init", "-q"]);
+    let root = commit(dir, "a", "root");
+    let tip = commit(dir, "a", "tagged tip");
+    git(dir, &["tag", "v1"]);
+    git(dir, &["reset", "--hard", &root]);
+    let repo = Repo::discover(dir).unwrap().unwrap();
+    let log = repo.log(&LogQuery::default()).unwrap();
+    let tagged = log.iter().find(|c| c.id == tip).unwrap();
+    assert!(tagged.refs.contains(&"tag: v1".into()));
+    assert_eq!(tagged.on_current_branch, Some(false));
+}
+
+#[test]
+fn projection_does_not_truncate_long_hidden_chains() {
+    let tmp = tempfile::tempdir().unwrap();
+    let dir = tmp.path();
+    git(dir, &["init", "-q"]);
+    let mut stream = String::new();
+    for i in 0..4100 {
+        let message = if i == 0 || i == 4099 { "keep" } else { "hide" };
+        stream.push_str(&format!(
+            "commit refs/heads/main\ncommitter Test <[email protected]> {} +0000\ndata {}\n{}\n\n",
+            1000 + i,
+            message.len(),
+            message
+        ));
+    }
+    let mut child = Command::new("git")
+        .current_dir(dir)
+        .args(["fast-import", "--quiet"])
+        .stdin(Stdio::piped())
+        .stdout(Stdio::null())
+        .spawn()
+        .unwrap();
+    child.stdin.take().unwrap().write_all(stream.as_bytes()).unwrap();
+    assert!(child.wait().unwrap().success());
+    let repo = Repo::discover(dir).unwrap().unwrap();
+    let log = repo.log(&LogQuery { text: Some("keep".into()), ..Default::default() }).unwrap();
+    assert_eq!(log.len(), 2);
+    assert_eq!(log[0].graph_parents, Some(vec![log[1].id.clone()]));
+}
+
+#[test]
+fn path_and_shallow_history_remain_topological_with_clock_skew() {
+    let tmp = tempfile::tempdir().unwrap();
+    let source = tmp.path().join("source");
+    std::fs::create_dir(&source).unwrap();
+    git(&source, &["init", "-q"]);
+    let make = |message: &str, parent: Option<&str>, time: &str| {
+        std::fs::write(source.join("a.txt"), message).unwrap();
+        git(&source, &["add", "a.txt"]);
+        let tree = git(&source, &["write-tree"]);
+        let mut cmd = Command::new("git");
+        cmd.current_dir(&source).args([
+            "-c",
+            "user.name=Test",
+            "-c",
+            "[email protected]",
+            "commit-tree",
+            &tree,
+            "-m",
+            message,
+        ]);
+        if let Some(p) = parent {
+            cmd.args(["-p", p]);
+        }
+        let out = cmd.env("GIT_AUTHOR_DATE", time).env("GIT_COMMITTER_DATE", time).output().unwrap();
+        assert!(out.status.success());
+        String::from_utf8(out.stdout).unwrap().trim().to_string()
+    };
+    let root = make("root", None, "@5000 +0000");
+    let left = make("left", Some(&root), "@1000 +0000");
+    let right = make("right", Some(&root), "@2000 +0000");
+    git(&source, &["update-ref", "refs/heads/main", &left]);
+    git(&source, &["update-ref", "refs/heads/side", &right]);
+    let shallow = tmp.path().join("shallow");
+    git(
+        tmp.path(),
+        &[
+            "clone",
+            "-q",
+            "--depth=2",
+            "--no-single-branch",
+            &format!("file://{}", source.display()),
+            shallow.to_str().unwrap(),
+        ],
+    );
+    for dir in [&source, &shallow] {
+        let repo = Repo::discover(dir).unwrap().unwrap();
+        for order in [LogOrder::Date, LogOrder::Topo, LogOrder::Standard] {
+            let log = repo.log(&LogQuery { order, path: Some("a.txt".into()), ..Default::default() }).unwrap();
+            assert_eq!(log.len(), 3);
+            let positions: std::collections::HashMap<_, _> =
+                log.iter().enumerate().map(|(i, c)| (c.id.as_str(), i)).collect();
+            for (i, c) in log.iter().enumerate() {
+                for parent in c.graph_parents.as_ref().unwrap() {
+                    assert!(positions.get(parent.as_str()).is_none_or(|p| *p > i));
+                }
+            }
+        }
+    }
+}
+
+#[test]
+fn multiple_paths_exact_authors_patterns_and_rename_history() {
+    let tmp = tempfile::tempdir().unwrap();
+    let dir = tmp.path();
+    git(dir, &["init", "-q"]);
+    let root = commit(dir, "old.txt", "root");
+    git(dir, &["mv", "old.txt", "new.txt"]);
+    git(dir, &["commit", "-qm", "rename"]);
+    let rename = git(dir, &["rev-parse", "HEAD"]);
+    let tip = commit(dir, "other.txt", "another file");
+    git(dir, &["branch", "feature/log"]);
+    git(dir, &["branch", "feature/skip", &root]);
+    let repo = Repo::discover(dir).unwrap().unwrap();
+    let log = repo.log(&LogQuery { paths: vec!["new.txt".into(), "other.txt".into()], ..Default::default() }).unwrap();
+    assert_eq!(log.iter().map(|c| c.id.clone()).collect::<Vec<_>>(), vec![tip.clone(), rename.clone()]);
+    let log = repo.log(&LogQuery { path: Some("new.txt".into()), follow: true, ..Default::default() }).unwrap();
+    assert_eq!(log.iter().map(|c| c.id.clone()).collect::<Vec<_>>(), vec![rename, root.clone()]);
+    let log = repo
+        .log(&LogQuery { branches: vec!["feature/.*".into(), "-feature/skip".into()], ..Default::default() })
+        .unwrap();
+    assert_eq!(log[0].id, tip);
+    std::fs::write(dir.join("other.txt"), "different author").unwrap();
+    git(dir, &["add", "-A"]);
+    git(dir, &["-c", "user.name=Test User", "-c", "[email protected]", "commit", "-qm", "different author"]);
+    let log = repo.log(&LogQuery { authors: vec!["Test".into()], authors_exact: true, ..Default::default() }).unwrap();
+    assert_eq!(log.len(), 3);
+    assert!(log.iter().all(|c| c.author == "Test"));
+    assert!(repo.log_users().unwrap().contains(&"Test User <[email protected]>".to_string()));
+}
+
+#[test]
+fn metadata_and_path_cache_survive_restart_without_caching_refs_or_filters() {
+    let tmp = tempfile::tempdir().unwrap();
+    let dir = tmp.path().join("repo");
+    std::fs::create_dir(&dir).unwrap();
+    git(&dir, &["init", "-q"]);
+    let first = commit(&dir, "a", "first\n\nComplete commit body");
+    git(&dir, &["tag", "v1"]);
+    git(&dir, &["tag", "-a", "annotated", "-m", "release"]);
+    let cache = tmp.path().join("cache");
+    {
+        let repo = Repo::discover(&dir).unwrap().unwrap();
+        repo.enable_log_index(&cache);
+        let log = repo.log(&LogQuery { path: Some("a".into()), summary_only: true, ..Default::default() }).unwrap();
+        assert!(log[0].message_truncated);
+        assert_eq!(log[0].message, "first");
+        assert_eq!(repo.log_details(&first).unwrap().message, "first\n\nComplete commit body");
+        let details = repo.log_details("annotated").unwrap();
+        assert_eq!(details.message, "first\n\nComplete commit body");
+        assert_eq!(details.signature, "N");
+        assert!(details.containing_branches.contains(&"main".to_string()));
+        assert_eq!(repo.revision_files(&first).unwrap(), vec!["a"]);
+    }
+    let second = commit(&dir, "a", "second");
+    git(&dir, &["tag", "-f", "v1"]);
+    let repo = Repo::discover(&dir).unwrap().unwrap();
+    repo.enable_log_index(&cache);
+    let log = repo.log(&LogQuery { path: Some("a".into()), ..Default::default() }).unwrap();
+    assert_eq!(log[0].id, second);
+    assert!(log[0].refs.contains(&"tag: v1".into()));
+    assert!(!log[1].refs.contains(&"tag: v1".into()));
+    assert!(log[1].message.contains("Complete commit body"));
+    assert!(!log[1].message_truncated);
+}
+
+#[test]
+fn cancelled_query_does_not_publish_a_partial_page() {
+    let tmp = tempfile::tempdir().unwrap();
+    git(tmp.path(), &["init", "-q"]);
+    commit(tmp.path(), "a", "root");
+    let repo = Repo::discover(tmp.path()).unwrap().unwrap();
+    let cancel = ide_core::CancellationToken::new();
+    cancel.cancel();
+    assert_eq!(
+        repo.log_cancellable(&LogQuery::default(), &cancel).unwrap_err().kind,
+        ide_core::error::ErrorKind::Cancelled
+    );
+}
+
+#[test]
+fn shallow_boundaries_do_not_reconnect_to_locally_present_ancestors() {
+    let tmp = tempfile::tempdir().unwrap();
+    let dir = tmp.path();
+    git(dir, &["init", "-q"]);
+    let root = commit(dir, "a", "keep root");
+    let boundary = commit(dir, "a", "hidden boundary");
+    let tip = commit(dir, "a", "keep tip");
+    git(dir, &["tag", "root", &root]);
+    std::fs::write(dir.join(".git/shallow"), format!("{boundary}\n")).unwrap();
+    let repo = Repo::discover(dir).unwrap().unwrap();
+    for order in [LogOrder::Date, LogOrder::Topo, LogOrder::Standard] {
+        for text in [None, Some("keep".to_string())] {
+            let log = repo.log(&LogQuery { order, text, path: Some("a".into()), ..Default::default() }).unwrap();
+            let boundary_row = log.iter().find(|c| c.id == boundary);
+            if let Some(row) = boundary_row {
+                assert_eq!(row.parents, vec![root.clone()]);
+                assert_eq!(row.graph_parents, Some(vec![]));
+            } else {
+                assert_eq!(log.iter().find(|c| c.id == tip).unwrap().graph_parents, Some(vec![]));
+            }
+        }
+    }
+}
+
+#[test]
+fn exact_branch_exclusions_treat_punctuation_literally() {
+    let tmp = tempfile::tempdir().unwrap();
+    let dir = tmp.path();
+    git(dir, &["init", "-q"]);
+    let root = commit(dir, "a", "root");
+    git(dir, &["branch", "release/1.0"]);
+    let tip = commit(dir, "a", "tip");
+    git(dir, &["branch", "release/1x0"]);
+    let repo = Repo::discover(dir).unwrap().unwrap();
+    let log = repo
+        .log(&LogQuery { branches: vec!["release/.*".into(), "-release/1.0".into()], ..Default::default() })
+        .unwrap();
+    assert_eq!(log.iter().map(|c| c.id.as_str()).collect::<Vec<_>>(), vec![tip.as_str(), root.as_str()]);
+}
+
+#[test]
+fn mode_only_changes_appear_in_path_history() {
+    let tmp = tempfile::tempdir().unwrap();
+    let dir = tmp.path();
+    git(dir, &["init", "-q"]);
+    let root = commit(dir, "script", "root");
+    git(dir, &["update-index", "--chmod=+x", "script"]);
+    git(dir, &["commit", "-qm", "make executable"]);
+    let tip = git(dir, &["rev-parse", "HEAD"]);
+    let repo = Repo::discover(dir).unwrap().unwrap();
+    let log = repo.log(&LogQuery { path: Some("script".into()), ..Default::default() }).unwrap();
+    assert_eq!(log.iter().map(|c| c.id.as_str()).collect::<Vec<_>>(), vec![tip.as_str(), root.as_str()]);
+}
+
+#[test]
+fn multiple_paths_are_simplified_together_at_merges() {
+    let tmp = tempfile::tempdir().unwrap();
+    let dir = tmp.path();
+    git(dir, &["init", "-q"]);
+    commit(dir, "a", "a0");
+    commit(dir, "b", "b0");
+    git(dir, &["branch", "side"]);
+    commit(dir, "a", "left");
+    git(dir, &["checkout", "side"]);
+    commit(dir, "b", "right");
+    git(dir, &["checkout", "main"]);
+    git(dir, &["merge", "--no-ff", "side", "-m", "merge both paths"]);
+    let repo = Repo::discover(dir).unwrap().unwrap();
+    let expected = git(dir, &["log", "--topo-order", "--format=%H", "--", "a", "b"]);
+    for order in [LogOrder::Topo, LogOrder::Date, LogOrder::Standard] {
+        let log = repo
+            .log(&LogQuery {
+                branch: Some("HEAD".into()),
+                paths: vec!["a".into(), "b".into()],
+                order,
+                ..Default::default()
+            })
+            .unwrap();
+        assert_eq!(log[0].summary, "merge both paths");
+        assert_eq!(
+            log.iter().map(|c| c.id.as_str()).collect::<std::collections::HashSet<_>>(),
+            expected.lines().collect()
+        );
+        assert_eq!(log[0].parents.len(), 2);
+        assert_eq!(log[0].graph_parents.as_ref().unwrap().len(), 2);
+    }
+}

crates/ide-vcs/tests/log_shape.rs

@@ -64,7 +64,7 @@ fn ids(commits: &[Commit]) -> Vec<String> {
 }
 
 fn parents_of(commits: &[Commit], id: &str) -> Vec<String> {
-    commits.iter().find(|c| c.id == id).unwrap().parents.clone()
+    commits.iter().find(|c| c.id == id).unwrap().graph_parents.clone().unwrap()
 }
 
 #[test]
@@ -75,6 +75,14 @@ fn date_order_follows_commit_time_and_reports_it() {
     assert_eq!(out[0].commit_time_ms, 5_000_000.0);
 }
 
+#[test]
+fn incoming_order_groups_the_merged_branch_before_the_main_parent() {
+    let h = history();
+    let out = log(&h, LogQuery { order: LogOrder::Standard, ..Default::default() });
+    assert_eq!(ids(&out), vec![h.c3.clone(), h.m.clone(), h.s1.clone(), h.c2.clone(), h.c1.clone()]);
+    assert_eq!(out[1].parents, vec![h.c2.clone(), h.s1.clone()]);
+}
+
 #[test]
 fn no_merges_links_children_to_the_merge_parents() {
     let h = history();
@@ -90,6 +98,7 @@ fn first_parent_skips_merged_branches() {
     let out = log(&h, LogQuery { first_parent: true, ..Default::default() });
     assert_eq!(ids(&out), vec![h.c3.clone(), h.m.clone(), h.c2.clone(), h.c1.clone()]);
     assert_eq!(parents_of(&out, &h.m), vec![h.c2.clone()]);
+    assert_eq!(out.iter().find(|c| c.id == h.m).unwrap().parents, vec![h.c2.clone(), h.s1.clone()]);
 }
 
 #[test]
@@ -201,19 +210,26 @@ fn a_user_filter_links_shown_commits_past_hidden_ones() {
     let log = repo.log(&LogQuery { author: Some("me@".into()), ..Default::default() }).unwrap();
     let links: Vec<(&str, Vec<&str>, Vec<bool>)> = log
         .iter()
-        .map(|c| (c.summary.as_str(), c.parents.iter().map(String::as_str).collect(), c.dashed.clone()))
+        .map(|c| {
+            (
+                c.summary.as_str(),
+                c.graph_parents.as_ref().unwrap().iter().map(String::as_str).collect(),
+                if c.graph_dashed.iter().any(|d| *d) { c.graph_dashed.clone() } else { Vec::new() },
+            )
+        })
         .collect();
     assert_eq!(
         links,
         [("m3", vec![m2.as_str()], vec![]), ("m2", vec![m1.as_str()], vec![true]), ("m1", vec![], vec![]),],
         "m2's parent o1 is hidden: m2 links to m1, dashed"
     );
-    assert!(!log.iter().any(|c| c.parents.contains(&o1)));
+    assert!(!log.iter().any(|c| c.graph_parents.as_ref().unwrap().contains(&o1)));
+    assert_eq!(log[1].parents, vec![o1]);
 
     // A page ends at m2: walking on still links it to m1.
     let page = repo.log(&LogQuery { author: Some("me@".into()), limit: 2, ..Default::default() }).unwrap();
     assert_eq!(page.len(), 2);
-    assert_eq!(page[1].parents, std::slice::from_ref(&m1));
+    assert_eq!(page[1].graph_parents.as_deref().unwrap(), std::slice::from_ref(&m1));
     let next = repo.log(&LogQuery { author: Some("me@".into()), skip: 2, limit: 2, ..Default::default() }).unwrap();
     assert_eq!(next.iter().map(|c| c.id.clone()).collect::<Vec<_>>(), std::slice::from_ref(&m1));
     let _ = m3;

crates/ide-vfs/src/lib.rs

@@ -256,6 +256,11 @@ pub fn set_writable(path: &Path, writable: bool) -> IdeResult<()> {
 pub fn rename(from: &Path, to: &Path) -> IdeResult<()> {
     ops::rename(from, to)
 }
+/// Checks source existence and destination conflicts without mutation, using
+/// the same filesystem identity rules as [`rename`].
+pub fn validate_rename(from: &Path, to: &Path) -> IdeResult<()> {
+    ops::validate_rename(from, to)
+}
 /// Moves to the OS trash (recoverable), like IDEA's safe delete for files.
 /// Deletes permanently when the trash is unavailable.
 pub fn delete(path: &Path) -> IdeResult<()> {

crates/ide-vfs/src/ops.rs

@@ -88,7 +88,7 @@ fn same_file(a: &Path, b: &Path) -> bool {
     }
 }
 
-pub(crate) fn rename(from: &Path, to: &Path) -> IdeResult<()> {
+pub(crate) fn validate_rename(from: &Path, to: &Path) -> IdeResult<()> {
     if !exists(from) {
         return Err(not_found(from));
     }
@@ -99,6 +99,14 @@ pub(crate) fn rename(from: &Path, to: &Path) -> IdeResult<()> {
     if exists(to) && !same_file(from, to) {
         return Err(already_exists(to));
     }
+    Ok(())
+}
+
+pub(crate) fn rename(from: &Path, to: &Path) -> IdeResult<()> {
+    validate_rename(from, to)?;
+    if from == to {
+        return Ok(());
+    }
     ensure_parent(to)?;
     match fs::rename(from, to) {
         Ok(()) => Ok(()),

crates/ide-workspace/Cargo.toml

@@ -21,6 +21,7 @@ blake3.workspace = true
 tracing.workspace = true
 tempfile.workspace = true
 globset.workspace = true
+uuid.workspace = true
 
 [dev-dependencies]
 tempfile.workspace = true

crates/ide-workspace/src/documents/workspace_edit.rs

@@ -401,8 +401,11 @@ impl Documents {
         if edit.files.is_empty() {
             return Ok(());
         }
+        // Validate project rules before path resolution can erase linked components.
+        crate::file_ops::validate_workspace_edit_paths(edit)?;
         let mut edit = normalize_edit(edit)?;
         let captured = !edit.preconditions.is_empty();
+        crate::file_ops::expand_workspace_edit(&mut edit)?;
         self.prepare_workspace_edit(&mut edit)?;
         self.validate_preconditions(&edit.preconditions)?;
         for file in &edit.files {

crates/ide-workspace/src/file_moves.rs

@@ -120,6 +120,8 @@ impl FileMoves {
         if moves.is_empty() {
             return Err(IdeError::invalid("nothing to move"));
         }
+        let expanded = crate::file_ops::expand_moves(moves)?;
+        let moves = expanded.as_slice();
         for m in moves {
             if !m.from.exists() {
                 return Err(IdeError::not_found(format!("{} does not exist", m.from.display())));
@@ -145,16 +147,9 @@ impl FileMoves {
             restore(documents, &paths, &before);
             return Err(e);
         }
-        let mut done: Vec<&FileMove> = Vec::new();
-        for m in moves {
-            if let Err(e) = ide_vfs::rename(&m.from, &m.to) {
-                for d in done.iter().rev() {
-                    let _ = ide_vfs::rename(&d.to, &d.from);
-                }
-                restore(documents, &paths, &before);
-                return Err(e);
-            }
-            done.push(m);
+        if let Err(e) = crate::file_ops::move_files(moves) {
+            restore(documents, &paths, &before);
+            return Err(e);
         }
         let mut edited = Vec::with_capacity(paths.len());
         for (p, before) in paths.iter().zip(before) {
@@ -196,27 +191,21 @@ impl FileMoves {
                 .ok_or_else(|| IdeError::not_found("the refactoring can no longer be undone"))?;
             records.remove(i)
         };
-        for m in &record.moves {
-            if !m.to.exists() {
-                return Err(IdeError::not_found(format!("{} no longer exists", m.to.display())));
-            }
-            if m.from.exists() {
-                return Err(IdeError::new(
-                    ide_core::error::ErrorKind::AlreadyExists,
-                    format!("{} exists again", m.from.display()),
-                ));
-            }
+        let back: Vec<_> =
+            record.moves.iter().rev().map(|m| FileMove { from: m.to.clone(), to: m.from.clone() }).collect();
+        if let Err(e) = crate::file_ops::move_files(&back) {
+            self.records.lock().push(record);
+            return Err(e);
         }
-        let mut outcome = UndoOutcome::default();
-        for m in record.moves.iter().rev() {
-            ide_vfs::rename(&m.to, &m.from)?;
-            outcome.moves.push(FileMove { from: m.to.clone(), to: m.from.clone() });
-        }
-        let back: Vec<FileMove> = outcome.moves.clone();
+        let mut outcome = UndoOutcome { moves: back.clone(), conflicts: Vec::new() };
         for f in &record.edited {
             let path = moved_path(&f.path, &back);
             match read_text(documents, &path) {
-                Ok(now) if now == f.after => write_text(documents, &path, &f.before)?,
+                Ok(now) if now == f.after => {
+                    if write_text(documents, &path, &f.before).is_err() {
+                        outcome.conflicts.push(path.into());
+                    }
+                }
                 Ok(now) if now == f.before => {}
                 _ => outcome.conflicts.push(path.into()),
             }

crates/ide-workspace/src/file_ops.rs

@@ -0,0 +1,94 @@
+//! Project-aware file operations. Plain files retain the VFS behavior; project
+//! rules may expand a resource operation before the common transaction runs.
+
+use crate::FileMove;
+use ide_core::{IdeError, IdeResult, WorkspaceEdit};
+use std::path::{Path, PathBuf};
+
+mod project;
+
+pub fn copy(from: &Path, to: &Path) -> IdeResult<()> {
+    project::copy(from, to).unwrap_or_else(|| ide_vfs::copy(from, to))
+}
+
+pub fn delete(path: &Path) -> IdeResult<()> {
+    project::delete(path).unwrap_or_else(|| ide_vfs::delete(path))
+}
+
+/// Files Local History must capture before deletion.
+pub fn deletion_paths(path: &Path) -> IdeResult<Vec<PathBuf>> {
+    project::deletion_paths(path).unwrap_or_else(|| Ok(vec![path.to_path_buf()]))
+}
+
+pub fn rename(from: &Path, to: &Path) -> IdeResult<()> {
+    if !project::has_move_rules(from, to) {
+        return ide_vfs::rename(from, to);
+    }
+    let moves = expand_moves(&[FileMove { from: from.into(), to: to.into() }])?;
+    move_files(&moves)
+}
+
+pub(crate) fn expand_moves(moves: &[FileMove]) -> IdeResult<Vec<FileMove>> {
+    let expanded = project::expand_moves(moves)?;
+    validate_moves(&expanded)?;
+    Ok(expanded)
+}
+
+fn path_key(path: &Path) -> PathBuf {
+    #[cfg(windows)]
+    return path.to_string_lossy().replace('\\', "/").to_lowercase().into();
+    #[cfg(not(windows))]
+    path.to_path_buf()
+}
+
+fn validate_moves(moves: &[FileMove]) -> IdeResult<()> {
+    let mut sources = std::collections::HashSet::new();
+    let mut targets = std::collections::HashSet::new();
+    for m in moves {
+        ide_vfs::validate_rename(&m.from, &m.to)?;
+        let from = path_key(&m.from);
+        let to = path_key(&m.to);
+        if to != from && to.starts_with(&from) {
+            return Err(IdeError::invalid("Cannot move a directory into itself"));
+        }
+        if !sources.insert(from) || !targets.insert(to) {
+            return Err(IdeError::invalid("Duplicate source or destination in file operation"));
+        }
+    }
+    Ok(())
+}
+
+pub(crate) fn move_files(moves: &[FileMove]) -> IdeResult<()> {
+    execute_moves(moves, &|from, to| project::rename_entry(from, to).unwrap_or_else(|| ide_vfs::rename(from, to)))
+}
+
+/// Executes an expanded batch. Rollback never overwrites a newly occupied path;
+/// failures report where the caller can recover the remaining files.
+pub(crate) fn execute_moves(moves: &[FileMove], rename: &dyn Fn(&Path, &Path) -> IdeResult<()>) -> IdeResult<()> {
+    validate_moves(moves)?;
+    for (i, m) in moves.iter().enumerate() {
+        if let Err(mut error) = rename(&m.from, &m.to) {
+            for done in moves[..i].iter().rev() {
+                if let Err(rollback) =
+                    ide_vfs::validate_rename(&done.to, &done.from).and_then(|()| rename(&done.to, &done.from))
+                {
+                    error.message.push_str(&format!(
+                        "; rollback {} -> {} failed: {rollback}",
+                        done.to.display(),
+                        done.from.display()
+                    ));
+                }
+            }
+            return Err(error);
+        }
+    }
+    Ok(())
+}
+
+pub(crate) fn validate_workspace_edit_paths(edit: &WorkspaceEdit) -> IdeResult<()> {
+    project::validate_workspace_edit_paths(edit)
+}
+
+pub(crate) fn expand_workspace_edit(edit: &mut WorkspaceEdit) -> IdeResult<()> {
+    project::expand_workspace_edit(edit)
+}

crates/ide-workspace/src/file_ops/project.rs

@@ -0,0 +1,52 @@
+//! The integration boundary for project-specific resource rules. These rules
+//! never replace the plain VFS path unless an operation touches project assets.
+
+use crate::{FileMove, unity::assets};
+use ide_core::{FileEdit, IdeResult, WorkspaceEdit};
+use std::path::{Path, PathBuf};
+
+pub(super) fn has_move_rules(from: &Path, to: &Path) -> bool {
+    assets::project_root(from).is_some() || assets::project_root(to).is_some()
+}
+
+pub(super) fn copy(from: &Path, to: &Path) -> Option<IdeResult<()>> {
+    has_move_rules(from, to).then(|| assets::copy(from, to))
+}
+
+pub(super) fn delete(path: &Path) -> Option<IdeResult<()>> {
+    assets::project_root(path).map(|_| assets::delete(path))
+}
+
+pub(super) fn deletion_paths(path: &Path) -> Option<IdeResult<Vec<PathBuf>>> {
+    assets::project_root(path).map(|_| assets::deletion_paths(path))
+}
+
+pub(super) fn rename_entry(from: &Path, to: &Path) -> Option<IdeResult<()>> {
+    has_move_rules(from, to).then(|| assets::move_one(from, to))
+}
+
+pub(super) fn expand_moves(moves: &[FileMove]) -> IdeResult<Vec<FileMove>> {
+    if moves.iter().any(|m| has_move_rules(&m.from, &m.to)) { assets::expand_moves(moves) } else { Ok(moves.to_vec()) }
+}
+
+fn has_edit_rules(edit: &WorkspaceEdit) -> bool {
+    edit.files.iter().any(|file| match file {
+        FileEdit::Rename { from, to } => has_move_rules(from, to),
+        FileEdit::Delete { path, .. } => assets::project_root(path).is_some(),
+        _ => false,
+    })
+}
+
+pub(super) fn validate_workspace_edit_paths(edit: &WorkspaceEdit) -> IdeResult<()> {
+    if has_edit_rules(edit) {
+        assets::validate_workspace_edit_paths(edit)?;
+    }
+    Ok(())
+}
+
+pub(super) fn expand_workspace_edit(edit: &mut WorkspaceEdit) -> IdeResult<()> {
+    if has_edit_rules(edit) {
+        assets::expand_workspace_edit(edit)?;
+    }
+    Ok(())
+}

crates/ide-workspace/src/lib.rs

@@ -7,6 +7,7 @@ pub mod documents;
 pub mod editorconfig;
 pub mod file_defaults;
 pub mod file_moves;
+pub mod file_ops;
 pub mod file_refs;
 pub mod history;
 pub mod memory;
@@ -15,6 +16,7 @@ pub mod recent;
 pub mod roots;
 pub mod settings;
 pub mod text_refs;
+pub mod unity;
 pub mod window_groups;
 pub mod workspace;
 

crates/ide-workspace/src/roots/detect.rs

@@ -62,7 +62,10 @@ const ROOT_NAMES: &[&str] = &[
 pub fn affects_roots(rel: &Path) -> bool {
     let mut names = rel.iter().rev().filter_map(|c| c.to_str());
     let Some(name) = names.next() else { return false };
-    BUILD_FILES.contains(&name) || ROOT_NAMES.contains(&name) || names.next() == Some("src")
+    BUILD_FILES.contains(&name)
+        || ROOT_NAMES.contains(&name)
+        || matches!(name, "Assets" | "Packages" | "ProjectSettings" | "ProjectVersion.txt")
+        || names.next() == Some("src")
 }
 
 /// Detects roots below `root`; paths in the result are unique and sorted.
@@ -77,6 +80,29 @@ pub fn detect(root: &Path) -> Vec<SourceFolder> {
             break;
         }
         let dir = if rel.is_empty() { root.to_path_buf() } else { root.join(&rel) };
+        if crate::unity::is_project(&dir) {
+            for (name, kind) in
+                [("Assets", RootKind::Source), ("Packages", RootKind::Source), ("ProjectSettings", RootKind::Resources)]
+            {
+                if dir.join(name).is_dir() {
+                    out.push(SourceFolder {
+                        path: join(&rel, name),
+                        kind,
+                        detected_from: Some(join(&rel, crate::unity::VERSION_FILE)),
+                    });
+                }
+            }
+            // Exclude before the index/watchers start, even if Unity creates its caches later.
+            for name in crate::unity::GENERATED_DIRS {
+                out.push(SourceFolder {
+                    path: join(&rel, name),
+                    kind: RootKind::Excluded,
+                    detected_from: Some(join(&rel, crate::unity::VERSION_FILE)),
+                });
+            }
+            // Assets and PackageCache may contain arbitrary build files; they aren't nested modules.
+            continue;
+        }
         let Ok(entries) = std::fs::read_dir(&dir) else { continue };
         let mut files: Vec<String> = Vec::new();
         let mut dirs: Vec<String> = Vec::new();
@@ -244,6 +270,43 @@ mod tests {
         roots.iter().map(|r| format!("{}={:?}@{}", r.path, r.kind, r.detected_from.as_deref().unwrap_or(""))).collect()
     }
 
+    #[test]
+    fn unity_roots_exclude_future_caches_and_do_not_scan_assets_as_modules() {
+        let dir = tree(&[
+            "Assets/Scripts/Player.cs",
+            "Assets/Plugins/Tool/package.json",
+            "ProjectSettings/ProjectVersion.txt",
+            "Packages/manifest.json",
+            "Library/PackageCache/tool/Cargo.toml",
+        ]);
+        let roots = detect(dir.path());
+        assert!(roots.iter().any(|r| r.path == "Assets" && r.kind == RootKind::Source));
+        assert!(roots.iter().any(|r| r.path == "Packages" && r.kind == RootKind::Source));
+        assert!(!roots.iter().any(|r| r.path.starts_with("Assets/") || r.path.starts_with("Library/")));
+        let effective = super::super::ProjectRoots::compute(roots, &Default::default());
+        for name in crate::unity::GENERATED_DIRS {
+            assert!(effective.excluded_globs().contains(&format!("/{name}")));
+        }
+        for path in ["Assets", "Packages", "ProjectSettings", crate::unity::VERSION_FILE] {
+            assert!(affects_roots(Path::new(path)));
+        }
+    }
+
+    #[test]
+    fn nested_unity_roots_are_anchored_without_excluding_other_projects() {
+        let dir = tree(&[
+            "game/Assets/Scripts/Player.cs",
+            "game/ProjectSettings/ProjectVersion.txt",
+            "server/Cargo.toml",
+            "server/src/main.rs",
+            "Library/Source.cs",
+        ]);
+        let roots = super::super::ProjectRoots::compute(detect(dir.path()), &Default::default());
+        assert!(roots.excluded_globs().contains(&"/game/Library".to_owned()));
+        assert!(!roots.excluded_globs().contains(&"/Library".to_owned()));
+        assert!(roots.roots.iter().any(|r| r.path == "server/src" && r.kind == RootKind::Source));
+    }
+
     #[test]
     fn maven_conventional_roots_and_target() {
         let dir = tree(&[

crates/ide-workspace/src/unity.rs

@@ -0,0 +1,94 @@
+//! Unity project identity. Generated C# solutions are optional, not root markers.
+
+pub(crate) mod assets;
+
+use serde::{Deserialize, Serialize};
+use specta::Type;
+use std::io::Read;
+use std::path::Path;
+
+pub const VERSION_FILE: &str = "ProjectSettings/ProjectVersion.txt";
+/// Root-relative caches and build outputs, including folders not created yet.
+pub const GENERATED_DIRS: &[&str] = &["Library", "Temp", "Obj", "obj", "Logs", "Build", "Builds", "UserSettings"];
+
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Type)]
+#[serde(rename_all = "camelCase")]
+pub struct UnityProjectInfo {
+    pub editor_version: Option<String>,
+    /// File names relative to the Unity root, in stable order.
+    pub solutions: Vec<String>,
+    pub projects: Vec<String>,
+}
+
+pub fn is_project(root: &Path) -> bool {
+    root.join("Assets").is_dir() && root.join(VERSION_FILE).is_file()
+}
+
+pub fn detect(root: &Path) -> Option<UnityProjectInfo> {
+    if !is_project(root) {
+        return None;
+    }
+    let mut text = String::new();
+    let _ = std::fs::File::open(root.join(VERSION_FILE)).and_then(|f| f.take(64 * 1024).read_to_string(&mut text));
+    let editor_version = text.lines().find_map(|line| {
+        let (key, value) = line.trim_start_matches('\u{feff}').split_once(':')?;
+        let value = value.trim();
+        (key.trim() == "m_EditorVersion" && !value.is_empty() && value.len() <= 128).then(|| value.to_owned())
+    });
+    let mut info = UnityProjectInfo { editor_version, solutions: Vec::new(), projects: Vec::new() };
+    if let Ok(entries) = std::fs::read_dir(root) {
+        for entry in entries.flatten() {
+            if !entry.file_type().is_ok_and(|t| t.is_file()) {
+                continue;
+            }
+            let name = entry.file_name().to_string_lossy().into_owned();
+            match entry.path().extension().and_then(|e| e.to_str()).map(str::to_ascii_lowercase).as_deref() {
+                Some("sln" | "slnx") => info.solutions.push(name),
+                Some("csproj") => info.projects.push(name),
+                _ => {}
+            }
+        }
+    }
+    info.solutions.sort();
+    info.projects.sort();
+    Some(info)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn detects_fresh_and_legacy_projects_without_packages_or_solutions() {
+        let temp = tempfile::tempdir().unwrap();
+        let root = temp.path();
+        std::fs::create_dir(root.join("Assets")).unwrap();
+        assert!(detect(root).is_none());
+        std::fs::create_dir(root.join("ProjectSettings")).unwrap();
+        std::fs::write(
+            root.join(VERSION_FILE),
+            "\u{feff}m_EditorVersion: 2022.3.62f1\r\nm_EditorVersionWithRevision: ignored\r\n",
+        )
+        .unwrap();
+        let info = detect(root).unwrap();
+        assert_eq!(info.editor_version.as_deref(), Some("2022.3.62f1"));
+        assert!(info.solutions.is_empty() && info.projects.is_empty());
+        std::fs::write(root.join("Game.sln"), "").unwrap();
+        std::fs::write(root.join("Game.slnx"), "").unwrap();
+        std::fs::write(root.join("Assembly-CSharp.csproj"), "").unwrap();
+        std::fs::create_dir(root.join("NotAProject.csproj")).unwrap();
+        let info = detect(root).unwrap();
+        assert_eq!(info.solutions, ["Game.sln", "Game.slnx"]);
+        assert_eq!(info.projects, ["Assembly-CSharp.csproj"]);
+        std::fs::write(root.join(VERSION_FILE), "malformed").unwrap();
+        assert_eq!(detect(root).unwrap().editor_version, None);
+    }
+
+    #[test]
+    fn ordinary_csharp_projects_are_not_unity_projects() {
+        let temp = tempfile::tempdir().unwrap();
+        std::fs::write(temp.path().join("App.csproj"), "").unwrap();
+        std::fs::create_dir(temp.path().join("Assets")).unwrap();
+        assert!(detect(temp.path()).is_none());
+    }
+}

crates/ide-workspace/src/unity/assets.rs

@@ -0,0 +1,254 @@
+//! Filesystem operations for assets under a Unity project's Assets directory.
+//! Metadata moves with the asset; duplication gets new GUIDs before publication.
+
+use crate::{file_moves::FileMove, file_ops::execute_moves};
+use ide_core::{IdeError, IdeResult, error::ErrorKind};
+use std::{
+    collections::HashMap,
+    fs,
+    path::{Component, Path, PathBuf},
+};
+
+mod duplicate;
+mod workspace_edit;
+pub(crate) use workspace_edit::{expand_workspace_edit, validate_workspace_edit_paths};
+#[cfg(test)]
+mod tests;
+
+pub fn meta_path(path: &Path) -> PathBuf {
+    let mut name = path.as_os_str().to_os_string();
+    name.push(".meta");
+    name.into()
+}
+
+/// Includes Assets itself so callers can protect the asset root.
+pub fn project_root(path: &Path) -> Option<PathBuf> {
+    path.ancestors().find_map(|p| {
+        (p.file_name().is_some_and(|n| if cfg!(windows) { n.eq_ignore_ascii_case("Assets") } else { n == "Assets" })
+            && p.parent().is_some_and(super::is_project))
+        .then(|| p.parent().unwrap().to_path_buf())
+    })
+}
+
+fn exists(path: &Path) -> bool {
+    fs::symlink_metadata(path).is_ok()
+}
+
+fn is_meta(path: &Path) -> bool {
+    path.extension().is_some_and(|ext| ext.eq_ignore_ascii_case("meta"))
+}
+
+fn validate_asset(path: &Path) -> IdeResult<()> {
+    if let Some(root) = project_root(path) {
+        if key(path) == key(&root.join("Assets")) {
+            return Err(IdeError::invalid("The Unity Assets root cannot be moved, copied or deleted"));
+        }
+        if is_meta(path) && exists(&path.with_extension("")) {
+            return Err(IdeError::invalid(
+                "Select the Unity asset instead of its .meta file; metadata is handled together",
+            ));
+        }
+    }
+    no_links(path)
+}
+
+fn no_links(path: &Path) -> IdeResult<()> {
+    if path.components().any(|c| matches!(c, Component::ParentDir)) {
+        return Err(IdeError::invalid("Unity asset operations require paths without '..'"));
+    }
+    // Trust the opened project's location, including a linked root or parent
+    // (macOS /var and /tmp). Check inside it, including Library staging paths.
+    // The outermost root prevents a nested Unity project from hiding a link.
+    let root = path.ancestors().filter(|p| super::is_project(p)).last();
+    for p in path.ancestors().take_while(|p| Some(*p) != root) {
+        match fs::symlink_metadata(p) {
+            Ok(m) if is_link(&m) => {
+                return Err(IdeError::invalid(format!("Unity asset operations do not follow links: {}", p.display())));
+            }
+            Ok(_) => {}
+            Err(e) if e.kind() == std::io::ErrorKind::NotFound => {}
+            Err(e) => return Err(e.into()),
+        }
+    }
+    Ok(())
+}
+
+fn is_link(metadata: &fs::Metadata) -> bool {
+    #[cfg(windows)]
+    {
+        use std::os::windows::fs::MetadataExt;
+        // Also reject directory junctions and other reparse points.
+        metadata.file_attributes() & 0x400 != 0
+    }
+    #[cfg(not(windows))]
+    {
+        metadata.file_type().is_symlink()
+    }
+}
+
+fn key(path: &Path) -> String {
+    let s = path.to_string_lossy().replace('\\', "/");
+    if cfg!(windows) { s.to_lowercase() } else { s }
+}
+
+fn vacant(from: &Path, to: &Path) -> IdeResult<()> {
+    if exists(to) {
+        if !exists(from) {
+            return Err(IdeError::new(ErrorKind::AlreadyExists, format!("{} already exists", to.display())));
+        }
+        ide_vfs::validate_rename(from, to)?;
+    }
+    Ok(())
+}
+
+/// Expand before applying reference edits, so orphan metadata conflicts cannot
+/// leave a partially refactored asset. Metadata goes first on publication.
+pub fn expand_moves(moves: &[FileMove]) -> IdeResult<Vec<FileMove>> {
+    let mut out = Vec::new();
+    for m in moves {
+        let unity = project_root(&m.from).is_some() || project_root(&m.to).is_some();
+        if unity {
+            // A caller may explicitly select both an asset and its metadata.
+            if is_meta(&m.from)
+                && moves
+                    .iter()
+                    .any(|a| meta_path(&a.from) == m.from.to_path_buf() && meta_path(&a.to) == m.to.to_path_buf())
+            {
+                continue;
+            }
+            validate_asset(&m.from)?;
+            validate_asset(&m.to)?;
+            let from = meta_path(&m.from);
+            let to = meta_path(&m.to);
+            no_links(&from)?;
+            no_links(&to)?;
+            vacant(&from, &to)?;
+            if exists(&from) {
+                out.push(FileMove { from: from.into(), to: to.into() });
+            }
+        }
+        out.push(m.clone());
+    }
+    Ok(out)
+}
+
+pub(crate) fn move_one(from: &Path, to: &Path) -> IdeResult<()> {
+    if project_root(from).is_some() || project_root(to).is_some() {
+        no_links(from)?;
+        no_links(to)?;
+        if let Some(parent) = to.parent() {
+            fs::create_dir_all(parent)?;
+        }
+        // A failed cross-volume copy/delete cannot be rolled back reliably.
+        // Keep paired Unity moves atomic per entry and let rename report it.
+        fs::rename(from, to)?;
+        Ok(())
+    } else {
+        ide_vfs::rename(from, to)
+    }
+}
+
+/// The paths Local History must snapshot before an asset deletion.
+pub fn deletion_paths(path: &Path) -> IdeResult<Vec<PathBuf>> {
+    validate_asset(path)?;
+    let meta = meta_path(path);
+    no_links(&meta)?;
+    let mut paths = vec![path.to_path_buf()];
+    if exists(&meta) {
+        paths.push(meta);
+    }
+    Ok(paths)
+}
+
+fn staging(root: &Path) -> IdeResult<PathBuf> {
+    let parent = root.join("Library/OpenIDEA/AssetOperations");
+    no_links(&parent)?;
+    fs::create_dir_all(&parent)?;
+    let dir = parent.join(uuid::Uuid::new_v4().simple().to_string());
+    fs::create_dir(&dir)?;
+    Ok(dir)
+}
+
+pub fn delete(path: &Path) -> IdeResult<()> {
+    delete_with(path, &ide_vfs::delete)
+}
+
+fn delete_with(path: &Path, remove: &dyn Fn(&Path) -> IdeResult<()>) -> IdeResult<()> {
+    let paths = deletion_paths(path)?;
+    let root = project_root(path).ok_or_else(|| IdeError::invalid("Expected a Unity asset path"))?;
+    let stage = staging(&root)?;
+    let payload = stage.join("files");
+    fs::create_dir(&payload)?;
+    let moves: Vec<_> = paths
+        .iter()
+        .map(|p| FileMove { from: p.clone().into(), to: payload.join(p.file_name().unwrap()).into() })
+        .collect();
+    // Recycle-bin restore returns the group to staging. Keep its destinations
+    // with it so originals can also be recovered without the IDE's history.
+    let manifest = stage.join("restore-paths.json");
+    fs::write(&manifest, serde_json::to_vec_pretty(&paths).map_err(|e| IdeError::internal(e.to_string()))?)?;
+    // Never automatically delete this staging directory on failure: it may
+    // contain originals when rollback fails.
+    if let Err(e) = execute_moves(&moves, &move_one) {
+        if fs::remove_dir(&payload).is_ok() {
+            let _ = fs::remove_file(&manifest);
+            let _ = fs::remove_dir(&stage);
+        }
+        return Err(e);
+    }
+    if let Err(mut e) = remove(&stage) {
+        let back: Vec<_> = moves.iter().rev().map(|m| FileMove { from: m.to.clone(), to: m.from.clone() }).collect();
+        if let Err(rollback) = execute_moves(&back, &move_one) {
+            e.message.push_str(&format!("; recovery files at {}: {rollback}", stage.display()));
+        }
+        if fs::remove_dir(&payload).is_ok() {
+            let _ = fs::remove_file(&manifest);
+            let _ = fs::remove_dir(&stage);
+        }
+        return Err(e);
+    }
+    Ok(())
+}
+
+pub fn copy(from: &Path, to: &Path) -> IdeResult<()> {
+    let root = project_root(to)
+        .or_else(|| project_root(from))
+        .ok_or_else(|| IdeError::invalid("Expected a Unity asset path"))?;
+    validate_asset(from)?;
+    validate_asset(to)?;
+    if key(from) == key(to) || key(to).starts_with(&(key(from) + "/")) {
+        return Err(IdeError::invalid("Cannot copy an asset onto or into itself"));
+    }
+    if exists(to) {
+        return Err(IdeError::new(ErrorKind::AlreadyExists, format!("{} already exists", to.display())));
+    }
+    let src_meta = meta_path(from);
+    let dst_meta = meta_path(to);
+    no_links(&src_meta)?;
+    no_links(&dst_meta)?;
+    // Copies never overwrite metadata, including orphan destination metadata.
+    if exists(&dst_meta) {
+        return Err(IdeError::new(ErrorKind::AlreadyExists, format!("{} already exists", dst_meta.display())));
+    }
+    let stage = staging(&root)?;
+    let result = (|| {
+        let asset = stage.join(from.file_name().ok_or_else(|| IdeError::invalid("Missing asset name"))?);
+        duplicate::copy_tree(from, &asset)?;
+        let meta = meta_path(&asset);
+        if exists(&src_meta) {
+            duplicate::copy_tree(&src_meta, &meta)?;
+        }
+        if project_root(to).is_some() {
+            duplicate::regenerate(&stage)?;
+        }
+        let mut moves = Vec::new();
+        if exists(&meta) {
+            moves.push(FileMove { from: meta.into(), to: dst_meta.into() });
+        }
+        moves.push(FileMove { from: asset.into(), to: to.into() });
+        execute_moves(&moves, &move_one)
+    })();
+    // Only disposable copies live here, never the source assets.
+    let _ = fs::remove_dir_all(&stage);
+    result
+}

crates/ide-workspace/src/unity/assets/duplicate.rs

@@ -0,0 +1,236 @@
+use super::*;
+use std::io::Read;
+
+const TEXT_LIMIT: u64 = 32 * 1024 * 1024;
+
+pub(super) fn copy_tree(from: &Path, to: &Path) -> IdeResult<()> {
+    no_links(from)?;
+    let metadata = fs::symlink_metadata(from)?;
+    if metadata.is_dir() {
+        fs::create_dir(to)?;
+        for entry in fs::read_dir(from)? {
+            let entry = entry?;
+            copy_tree(&entry.path(), &to.join(entry.file_name()))?;
+        }
+    } else if metadata.is_file() {
+        fs::copy(from, to)?;
+    } else {
+        return Err(IdeError::invalid(format!("Not a regular Unity asset: {}", from.display())));
+    }
+    Ok(())
+}
+
+fn files(dir: &Path, out: &mut Vec<PathBuf>) -> IdeResult<()> {
+    for entry in fs::read_dir(dir)? {
+        let entry = entry?;
+        if entry.file_type()?.is_dir() {
+            files(&entry.path(), out)?;
+        } else {
+            out.push(entry.path());
+        }
+    }
+    Ok(())
+}
+
+fn read_text(path: &Path) -> IdeResult<String> {
+    let mut bytes = Vec::new();
+    fs::File::open(path)?.take(TEXT_LIMIT + 1).read_to_end(&mut bytes)?;
+    if bytes.len() as u64 > TEXT_LIMIT {
+        return Err(IdeError::invalid(format!(
+            "Unity serialized asset exceeds the 32 MiB copy limit: {}",
+            path.display()
+        )));
+    }
+    String::from_utf8(bytes)
+        .map_err(|_| IdeError::invalid(format!("Cannot rewrite binary Unity metadata: {}", path.display())))
+}
+
+fn guid(value: &str) -> bool {
+    value.len() == 32 && value.bytes().all(|b| b.is_ascii_hexdigit()) && value.bytes().any(|b| b != b'0')
+}
+
+pub(super) fn regenerate(stage: &Path) -> IdeResult<()> {
+    let mut paths = Vec::new();
+    files(stage, &mut paths)?;
+    let mut ids = HashMap::new();
+    for path in paths.iter().filter(|p| is_meta(p)) {
+        let text = read_text(path)?;
+        let values: Vec<_> = text
+            .trim_start_matches('\u{feff}')
+            .lines()
+            .filter_map(|l| l.strip_prefix("guid:").map(str::trim))
+            .collect();
+        if values.len() != 1 || !guid(values[0]) {
+            return Err(IdeError::invalid(format!("Missing or invalid GUID in {}", path.display())));
+        }
+        if ids.insert(values[0].to_ascii_lowercase(), uuid::Uuid::new_v4().simple().to_string()).is_some() {
+            return Err(IdeError::invalid("Duplicate source GUIDs; resolve them in Unity before copying"));
+        }
+    }
+    for path in paths {
+        let ext = path.extension().unwrap_or_default().to_string_lossy().to_ascii_lowercase();
+        if ext == "asmdef" || ext == "asmref" {
+            let text = read_text(&path)?;
+            let mut json: serde_json::Value =
+                serde_json::from_str(&text).map_err(|e| IdeError::invalid(e.to_string()))?;
+            if rewrite_json(&mut json, &ids) {
+                fs::write(&path, serde_json::to_string_pretty(&json).map_err(|e| IdeError::internal(e.to_string()))?)?;
+            }
+            continue;
+        }
+        let mut header = [0; 32];
+        let n = fs::File::open(&path)?.read(&mut header)?;
+        let header = String::from_utf8_lossy(&header[..n]);
+        let header = header.trim_start_matches('\u{feff}');
+        let yaml = header.starts_with("%YAML") || header.starts_with("--- !u!");
+        if !yaml && !is_meta(&path) {
+            // These formats may be binary under Mixed/Force Binary. We cannot
+            // safely preserve internal references without Unity deserialization.
+            if matches!(
+                ext.as_str(),
+                "asset"
+                    | "prefab"
+                    | "unity"
+                    | "mat"
+                    | "anim"
+                    | "controller"
+                    | "overridecontroller"
+                    | "playable"
+                    | "mask"
+                    | "rendertexture"
+                    | "physicmaterial"
+                    | "physicsmaterial2d"
+                    | "lighting"
+                    | "terrainlayer"
+                    | "guiskin"
+                    | "flare"
+                    | "cubemap"
+                    | "spriteatlas"
+                    | "spriteatlasv2"
+                    | "preset"
+                    | "shadervariants"
+                    | "giparams"
+                    | "lightingdata"
+                    | "fontsettings"
+                    | "texture2d"
+                    | "mesh"
+            ) {
+                return Err(IdeError::invalid(format!(
+                    "Cannot copy binary Unity serialized asset {}; use Force Text serialization in Unity",
+                    path.display()
+                )));
+            }
+            continue;
+        }
+        let before = read_text(&path)?;
+        let after = rewrite_yaml(&before, &ids);
+        if before != after {
+            fs::write(&path, after)?;
+        }
+    }
+    Ok(())
+}
+
+fn rewrite_json(value: &mut serde_json::Value, ids: &HashMap<String, String>) -> bool {
+    match value {
+        serde_json::Value::String(s) => {
+            if let Some(id) = s.strip_prefix("GUID:").and_then(|id| ids.get(&id.to_ascii_lowercase())) {
+                *s = format!("GUID:{id}");
+                true
+            } else {
+                false
+            }
+        }
+        serde_json::Value::Array(a) => {
+            let mut changed = false;
+            for v in a {
+                changed |= rewrite_json(v, ids);
+            }
+            changed
+        }
+        serde_json::Value::Object(o) => {
+            let mut changed = false;
+            for v in o.values_mut() {
+                changed |= rewrite_json(v, ids);
+            }
+            changed
+        }
+        _ => false,
+    }
+}
+
+/// Patch GUID scalar tokens without reserializing Unity's YAML dialect. Quoted
+/// strings, comments and indented block scalars are not asset references.
+fn rewrite_yaml(text: &str, ids: &HashMap<String, String>) -> String {
+    let mut bytes = text.as_bytes().to_vec();
+    let mut offset = 0;
+    let mut block_indent = None;
+    let mut quote = None;
+    for line in text.split_inclusive('\n') {
+        let raw = line.as_bytes();
+        let indent = raw.iter().take_while(|b| **b == b' ').count();
+        if block_indent.is_some_and(|n| indent > n || line.trim().is_empty()) {
+            offset += raw.len();
+            continue;
+        }
+        block_indent = None;
+        let mut i = 0;
+        while i < raw.len() {
+            let b = raw[i];
+            if let Some(q) = quote {
+                if q == b'"' && b == b'\\' {
+                    i += 2;
+                    continue;
+                }
+                if b == q {
+                    if q == b'\'' && raw.get(i + 1) == Some(&q) {
+                        i += 2;
+                        continue;
+                    }
+                    quote = None;
+                }
+                i += 1;
+                continue;
+            }
+            if b == b'#' && (i == 0 || raw[i - 1].is_ascii_whitespace()) {
+                break;
+            }
+            if b == b'"' || b == b'\'' {
+                let prefix = line[..i].trim();
+                // Apostrophes inside plain scalars (e.g. Hero's Sword) do not
+                // open a quoted scalar or suppress references on later lines.
+                if prefix.is_empty() || prefix.ends_with([':', '-', '[', '{', ',']) {
+                    quote = Some(b);
+                    i += 1;
+                    continue;
+                }
+            }
+            if (b == b'|' || b == b'>') && line[..i].trim_end().ends_with([':', '-']) {
+                block_indent = Some(indent);
+                break;
+            }
+            if raw[i..].starts_with(b"guid:") {
+                let prefix = line[..i].trim_start_matches('\u{feff}').trim_end();
+                if prefix.is_empty() || prefix.ends_with(['{', ',']) {
+                    let start = i + 5 + raw[i + 5..].iter().take_while(|b| **b == b' ' || **b == b'\t').count();
+                    let end = start + 32;
+                    if end <= raw.len()
+                        && raw[start..end].iter().all(u8::is_ascii_hexdigit)
+                        && (end == raw.len()
+                            || raw[end].is_ascii_whitespace()
+                            || matches!(raw[end], b',' | b'}' | b'#'))
+                        && let Some(new) = ids.get(&line[start..end].to_ascii_lowercase())
+                    {
+                        bytes[offset + start..offset + end].copy_from_slice(new.as_bytes());
+                        i = end;
+                        continue;
+                    }
+                }
+            }
+            // Non-ASCII bytes cannot begin any token handled above.
+            i += 1;
+        }
+        offset += raw.len();
+    }
+    String::from_utf8(bytes).expect("GUID substitutions preserve UTF-8")
+}

crates/ide-workspace/src/unity/assets/tests.rs

@@ -0,0 +1,217 @@
+use super::*;
+use crate::file_ops::{move_files, rename};
+use crate::{documents::Documents, file_moves::FileMoves};
+use ide_core::{LanguageId, WorkspaceEdit};
+use std::sync::Arc;
+
+mod links;
+
+const A: &str = "11111111111111111111111111111111";
+const B: &str = "22222222222222222222222222222222";
+const C: &str = "33333333333333333333333333333333";
+
+fn project() -> tempfile::TempDir {
+    let tmp = tempfile::tempdir().unwrap();
+    fs::create_dir(tmp.path().join("Assets")).unwrap();
+    fs::create_dir(tmp.path().join("ProjectSettings")).unwrap();
+    fs::write(tmp.path().join(super::super::VERSION_FILE), "m_EditorVersion: 6000.0.1f1").unwrap();
+    tmp
+}
+
+fn asset(root: &Path, name: &str, content: &str, id: &str) -> PathBuf {
+    let path = root.join("Assets").join(name);
+    fs::create_dir_all(path.parent().unwrap()).unwrap();
+    fs::write(&path, content).unwrap();
+    fs::write(meta_path(&path), format!("fileFormatVersion: 2\r\nguid: {id}\r\nImporter:\r\n  setting: keep\r\n"))
+        .unwrap();
+    path
+}
+
+fn id(path: &Path) -> String {
+    fs::read_to_string(meta_path(path))
+        .unwrap()
+        .lines()
+        .find_map(|l| l.strip_prefix("guid: ").map(str::to_owned))
+        .unwrap()
+}
+
+#[test]
+fn rename_preserves_metadata_and_undo_retries_after_conflict() {
+    let tmp = project();
+    let src = asset(tmp.path(), "Player.cs", "class Player {}", A);
+    let dst = src.with_file_name("Hero.cs");
+    let docs = Documents::new(Arc::new(|_| {}), Box::new(|_: &Path, _: Option<&str>| LanguageId::new("plaintext")));
+    let stack = FileMoves::new();
+    let moves = [FileMove { from: src.clone().into(), to: dst.clone().into() }];
+    let token = stack.perform(&docs, None, &moves, &WorkspaceEdit::default(), "Rename", &|_| Ok(())).unwrap();
+    assert_eq!(id(&dst), A);
+    assert!(!meta_path(&src).exists());
+    fs::write(meta_path(&src), "conflict").unwrap();
+    assert!(stack.undo(&docs, token).is_err());
+    assert!(stack.can_undo(token));
+    assert!(dst.exists());
+    fs::remove_file(meta_path(&src)).unwrap();
+    let undone = stack.undo(&docs, token).unwrap();
+    assert_eq!(undone.moves.len(), 2);
+    assert_eq!(id(&src), A);
+    assert!(!dst.exists());
+}
+
+#[test]
+fn orphan_metadata_conflicts_and_standalone_metadata_are_protected() {
+    let tmp = project();
+    let src = asset(tmp.path(), "Player.cs", "code", A);
+    let dst = src.with_file_name("Hero.cs");
+    fs::write(meta_path(&dst), "orphan").unwrap();
+    assert!(rename(&src, &dst).is_err());
+    assert!(copy(&src, &dst).is_err());
+    assert!(src.exists() && !dst.exists());
+    assert_eq!(id(&src), A);
+    assert!(rename(&meta_path(&src), &src.with_file_name("Other.meta")).is_err());
+    assert!(delete_with(&meta_path(&src), &|_| panic!("must reject before deletion")).is_err());
+    assert!(rename(&tmp.path().join("Assets"), &tmp.path().join("Renamed")).is_err());
+}
+
+#[test]
+fn folder_copy_regenerates_guids_and_only_internal_references() {
+    let tmp = project();
+    let root = tmp.path();
+    let text = format!(
+        "%YAML 1.1\n--- !u!1 &1\nObject:\n  internal: {{fileID: 1, guid: {B}, type: 3}}\n  external: {{fileID: 2, guid: {C}, type: 3}}\n  quoted: \"guid: {B}\"\n  block: |\n    guid: {B}\n"
+    );
+    let src = asset(root, "Group/Scene.prefab", &text, A);
+    asset(root, "Group/Script.cs", "// untouched", B);
+    fs::write(root.join("Assets/Group.meta"), format!("guid: {C}\nfolderAsset: yes\n")).unwrap();
+    // An actual external id not copied into Group.
+    let external = "44444444444444444444444444444444";
+    fs::write(
+        &src,
+        text.replace(&format!("external: {{fileID: 2, guid: {C}"), &format!("external: {{fileID: 2, guid: {external}")),
+    )
+    .unwrap();
+    fs::write(root.join("Assets/Group/Assembly.asmdef"), format!(r#"{{"references":["GUID:{B}","GUID:{external}"]}}"#))
+        .unwrap();
+    let to = root.join("Assets/Group Copy");
+    copy(&root.join("Assets/Group"), &to).unwrap();
+    let script = id(&to.join("Script.cs"));
+    assert_ne!(script, B);
+    assert_ne!(id(&to.join("Scene.prefab")), A);
+    assert_ne!(id(&to), C);
+    assert_eq!(id(&src), A);
+    let copied = fs::read_to_string(to.join("Scene.prefab")).unwrap();
+    assert!(copied.contains(&format!("internal: {{fileID: 1, guid: {script}")));
+    assert!(copied.contains(&format!("external: {{fileID: 2, guid: {external}")));
+    assert!(copied.contains(&format!("quoted: \"guid: {B}\"")));
+    assert!(copied.contains(&format!("block: |\n    guid: {B}")));
+    assert!(fs::read_to_string(meta_path(&to.join("Script.cs"))).unwrap().contains("setting: keep\r\n"));
+    let assembly = fs::read_to_string(to.join("Assembly.asmdef")).unwrap();
+    assert!(assembly.contains(&format!("GUID:{script}")) && assembly.contains(external));
+}
+
+#[test]
+fn invalid_or_binary_copy_never_publishes_partial_assets() {
+    let tmp = project();
+    let src = asset(tmp.path(), "Group/Data.asset", "binary data", A);
+    let from = src.parent().unwrap();
+    let to = from.with_file_name("Copy");
+    assert!(copy(from, &to).is_err());
+    assert!(!to.exists() && !meta_path(&to).exists());
+    assert_eq!(id(&src), A);
+    fs::write(&src, "%YAML 1.1\n--- !u!1 &1\n").unwrap();
+    fs::write(meta_path(&src), "guid: invalid\n").unwrap();
+    assert!(copy(from, &to).is_err());
+    assert!(!to.exists());
+}
+
+#[test]
+fn deletion_groups_sidecar_and_restores_both_on_trash_failure() {
+    let tmp = project();
+    let src = asset(tmp.path(), "Player.cs", "code", A);
+    assert_eq!(deletion_paths(&src).unwrap(), vec![src.clone(), meta_path(&src)]);
+    let error = delete_with(&src, &|stage| {
+        assert!(stage.join("files/Player.cs").exists());
+        assert!(stage.join("files/Player.cs.meta").exists());
+        let destinations: Vec<PathBuf> =
+            serde_json::from_slice(&fs::read(stage.join("restore-paths.json")).unwrap()).unwrap();
+        assert_eq!(destinations, vec![src.clone(), meta_path(&src)]);
+        Err(IdeError::internal("trash unavailable"))
+    })
+    .unwrap_err();
+    assert!(error.message.contains("trash unavailable"));
+    assert!(src.exists());
+    assert_eq!(id(&src), A);
+    delete_with(&src, &ide_vfs::delete_permanently).unwrap();
+    assert!(!src.exists() && !meta_path(&src).exists());
+}
+
+#[test]
+fn selecting_both_asset_and_sidecar_does_not_move_twice() {
+    let tmp = project();
+    let src = asset(tmp.path(), "Player.cs", "code", A);
+    let dst = src.with_file_name("Hero.cs");
+    let expanded = expand_moves(&[
+        FileMove { from: src.clone().into(), to: dst.clone().into() },
+        FileMove { from: meta_path(&src).into(), to: meta_path(&dst).into() },
+    ])
+    .unwrap();
+    assert_eq!(expanded.len(), 2);
+    move_files(&expanded).unwrap();
+    assert_eq!(id(&dst), A);
+}
+
+#[test]
+fn non_unity_operations_do_not_touch_adjacent_metadata() {
+    let tmp = tempfile::tempdir().unwrap();
+    let src = tmp.path().join("file.txt");
+    let dst = tmp.path().join("copy.txt");
+    fs::write(&src, "text").unwrap();
+    fs::write(meta_path(&src), "unrelated").unwrap();
+    crate::file_ops::copy(&src, &dst).unwrap();
+    assert!(!meta_path(&dst).exists());
+    rename(&src, &tmp.path().join("moved.txt")).unwrap();
+    assert!(meta_path(&src).exists());
+}
+
+#[test]
+fn failed_second_move_rolls_back_metadata() {
+    let tmp = project();
+    let src = asset(tmp.path(), "Player.cs", "code", A);
+    let meta_dst = src.with_file_name("Moved.cs.meta");
+    let blocker = tmp.path().join("Assets/blocked");
+    fs::write(&blocker, "not a directory").unwrap();
+    let moves = [
+        FileMove { from: meta_path(&src).into(), to: meta_dst.clone().into() },
+        FileMove { from: src.clone().into(), to: blocker.join("Moved.cs").into() },
+    ];
+    assert!(move_files(&moves).is_err());
+    assert_eq!(id(&src), A);
+    assert!(src.exists() && !meta_dst.exists());
+}
+
+#[test]
+fn yaml_scalar_text_does_not_change_reference_detection() {
+    let tmp = project();
+    let text = format!(
+        "%YAML 1.1\n--- !u!1 &1\nObject:\n  name: Hero's Sword\n  self: {{fileID: 1, guid: {A}, type: 3}}\n  text: \"escaped \\\" guid: {A}\"\n  multiline: 'value\n    guid: {A}'\n  selfAgain: {{fileID: 1, guid: {A}, type: 3}}\n"
+    );
+    let src = asset(tmp.path(), "Player.prefab", &text, A);
+    let dst = src.with_file_name("Copied.prefab");
+    copy(&src, &dst).unwrap();
+    let new_id = id(&dst);
+    let copied = fs::read_to_string(&dst).unwrap();
+    assert!(copied.contains(&format!("self: {{fileID: 1, guid: {new_id}")));
+    assert!(copied.contains(&format!("selfAgain: {{fileID: 1, guid: {new_id}")));
+    assert!(copied.contains(&format!("multiline: 'value\n    guid: {A}'")));
+    assert!(copied.contains(&format!("text: \"escaped \\\" guid: {A}\"")));
+}
+
+#[cfg(windows)]
+#[test]
+fn case_only_rename_keeps_metadata() {
+    let tmp = project();
+    let src = asset(tmp.path(), "Player.cs", "code", A);
+    let dst = src.with_file_name("player.cs");
+    rename(&src, &dst).unwrap();
+    assert_eq!(id(&dst), A);
+    assert!(fs::read_dir(dst.parent().unwrap()).unwrap().any(|e| e.unwrap().file_name() == "player.cs.meta"));
+}

crates/ide-workspace/src/unity/assets/tests/links.rs

@@ -0,0 +1,233 @@
+use super::*;
+use ide_core::FileEdit;
+
+fn dir_link(target: &Path, link: &Path) {
+    #[cfg(unix)]
+    std::os::unix::fs::symlink(target, link).unwrap();
+    #[cfg(windows)]
+    {
+        use std::os::windows::process::CommandExt;
+        let output = std::process::Command::new("cmd")
+            .args(["/c", "mklink", "/J"])
+            .arg(link.to_string_lossy().replace('/', "\\"))
+            .arg(target.to_string_lossy().replace('/', "\\"))
+            .creation_flags(0x08000000)
+            .output()
+            .unwrap();
+        assert!(output.status.success(), "{}", String::from_utf8_lossy(&output.stderr));
+    }
+}
+
+#[test]
+fn linked_parent_and_project_root_support_asset_operations_and_undo() {
+    for parent_alias in [false, true] {
+        let tmp = project();
+        let aliases = tempfile::tempdir().unwrap();
+        let link = aliases.path().join("alias");
+        let root = if parent_alias {
+            dir_link(tmp.path().parent().unwrap(), &link);
+            link.join(tmp.path().file_name().unwrap())
+        } else {
+            dir_link(tmp.path(), &link);
+            link.clone()
+        };
+        let from = asset(&root, "Player.cs", "class Player {}", A);
+        let to = root.join("Assets/New/Nested/Hero.cs");
+        let docs = Documents::new(Arc::new(|_| {}), Box::new(|_: &Path, _: Option<&str>| LanguageId::new("plaintext")));
+        let moves = FileMoves::new();
+        let token = moves
+            .perform(
+                &docs,
+                None,
+                &[FileMove { from: from.clone().into(), to: to.clone().into() }],
+                &WorkspaceEdit::default(),
+                "Move",
+                &|_| Ok(()),
+            )
+            .unwrap();
+        assert_eq!(id(&to), A);
+        moves.undo(&docs, token).unwrap();
+        assert_eq!(id(&from), A);
+        copy(&from, &to).unwrap();
+        assert_ne!(id(&to), A);
+        assert_eq!(id(&from), A);
+        delete_with(&to, &ide_vfs::delete_permanently).unwrap();
+        assert!(!to.exists() && !meta_path(&to).exists());
+        let intermediate = root.join("Assets/Intermediate.cs");
+        docs.apply_workspace_edit(&WorkspaceEdit {
+            files: vec![
+                FileEdit::Rename { from: from.clone().into(), to: intermediate.clone().into() },
+                FileEdit::Rename { from: intermediate.into(), to: to.clone().into() },
+            ],
+            ..Default::default()
+        })
+        .unwrap();
+        assert_eq!(id(&to), A);
+        assert!(!from.exists() && !meta_path(&from).exists());
+    }
+}
+
+#[test]
+fn internal_directory_links_reject_asset_operations_before_mutation() {
+    for relative in ["Assets/Linked", "Library", "Library/OpenIDEA", "Library/OpenIDEA/AssetOperations"] {
+        let tmp = project();
+        let outside = tempfile::tempdir().unwrap();
+        fs::write(outside.path().join("sentinel"), "keep").unwrap();
+        let from = asset(tmp.path(), "Player.cs", "code", A);
+        let link = tmp.path().join(relative);
+        fs::create_dir_all(link.parent().unwrap()).unwrap();
+        dir_link(outside.path(), &link);
+        let to = if relative.starts_with("Assets") { link.join("Copy.cs") } else { from.with_file_name("Copy.cs") };
+        assert!(copy(&from, &to).unwrap_err().message.contains("do not follow links"));
+        if relative.starts_with("Assets") {
+            assert!(rename(&from, &to).is_err());
+            let docs =
+                Documents::new(Arc::new(|_| {}), Box::new(|_: &Path, _: Option<&str>| LanguageId::new("plaintext")));
+            assert!(
+                docs.apply_workspace_edit(&WorkspaceEdit {
+                    files: vec![FileEdit::Rename { from: from.clone().into(), to: to.clone().into() },],
+                    ..Default::default()
+                })
+                .is_err()
+            );
+            let sentinel = link.join("sentinel");
+            assert!(
+                docs.apply_workspace_edit(&WorkspaceEdit {
+                    files: vec![FileEdit::Delete { path: sentinel.into(), recursive: false },],
+                    ..Default::default()
+                })
+                .is_err()
+            );
+        } else {
+            assert!(delete_with(&from, &|_| panic!("must reject before removal")).is_err());
+        }
+        assert_eq!(id(&from), A);
+        assert!(from.exists() && !to.exists() && !meta_path(&to).exists());
+        assert_eq!(fs::read_to_string(outside.path().join("sentinel")).unwrap(), "keep");
+        assert_eq!(fs::read_dir(outside.path()).unwrap().count(), 1);
+    }
+}
+
+#[test]
+fn linked_assets_root_and_recursive_copy_links_are_rejected() {
+    let tmp = project();
+    let outside = tempfile::tempdir().unwrap();
+    fs::remove_dir(tmp.path().join("Assets")).unwrap();
+    dir_link(outside.path(), &tmp.path().join("Assets"));
+    let from = asset(tmp.path(), "Player.cs", "code", A);
+    assert!(rename(&from, &from.with_file_name("Hero.cs")).is_err());
+    assert!(deletion_paths(&from).is_err());
+    assert_eq!(id(&from), A);
+
+    let tmp = project();
+    let from = asset(tmp.path(), "Group/Player.cs", "code", A);
+    dir_link(outside.path(), &tmp.path().join("Assets/Group/Linked"));
+    let to = tmp.path().join("Assets/Copy");
+    assert!(copy(from.parent().unwrap(), &to).is_err());
+    assert!(!to.exists() && !meta_path(&to).exists());
+    assert_eq!(id(&from), A);
+}
+
+#[cfg(unix)]
+#[test]
+fn linked_asset_and_sidecar_leaves_are_rejected() {
+    for sidecar in [false, true] {
+        let tmp = project();
+        let outside = tempfile::NamedTempFile::new().unwrap();
+        let from = asset(tmp.path(), "Player.cs", "code", A);
+        let path = if sidecar { meta_path(&from) } else { from.clone() };
+        fs::remove_file(&path).unwrap();
+        std::os::unix::fs::symlink(outside.path(), &path).unwrap();
+        assert!(rename(&from, &from.with_file_name("Hero.cs")).is_err());
+        assert!(copy(&from, &from.with_file_name("Copy.cs")).is_err());
+        assert!(deletion_paths(&from).is_err());
+        assert!(fs::symlink_metadata(&path).unwrap().file_type().is_symlink());
+    }
+}
+
+#[test]
+fn cross_project_operations_validate_each_root_and_keep_metadata() {
+    let source = project();
+    let destination = project();
+    let aliases = tempfile::tempdir().unwrap();
+    let a = aliases.path().join("source");
+    let b = aliases.path().join("destination");
+    dir_link(source.path(), &a);
+    dir_link(destination.path(), &b);
+    let from = asset(&a, "Player.cs", "code", A);
+    let copied = b.join("Assets/Copied.cs");
+    copy(&from, &copied).unwrap();
+    assert_ne!(id(&copied), A);
+    assert_eq!(id(&from), A);
+    let moved = b.join("Assets/Moved.cs");
+    rename(&from, &moved).unwrap();
+    assert_eq!(id(&moved), A);
+    assert!(!from.exists() && !meta_path(&from).exists());
+}
+
+#[test]
+fn external_links_do_not_become_trusted_by_importing_into_unity() {
+    let tmp = project();
+    let external = tempfile::tempdir().unwrap();
+    let aliases = tempfile::tempdir().unwrap();
+    fs::write(external.path().join("File.cs"), "code").unwrap();
+    let link = aliases.path().join("external");
+    dir_link(external.path(), &link);
+    let from = link.join("File.cs");
+    let to = tmp.path().join("Assets/Imported.cs");
+    assert!(copy(&from, &to).is_err());
+    assert!(rename(&from, &to).is_err());
+    assert!(from.exists() && !to.exists());
+}
+
+#[test]
+fn folder_rename_cannot_hide_linked_children_in_later_transaction_operations() {
+    let tmp = project();
+    let outside = tempfile::tempdir().unwrap();
+    fs::write(outside.path().join("sentinel"), "keep").unwrap();
+    let from = tmp.path().join("Assets/Group");
+    fs::create_dir(&from).unwrap();
+    dir_link(outside.path(), &from.join("Linked"));
+    let to = tmp.path().join("Assets/Moved");
+    let docs = Documents::new(Arc::new(|_| {}), Box::new(|_: &Path, _: Option<&str>| LanguageId::new("plaintext")));
+    let error = docs
+        .apply_workspace_edit(&WorkspaceEdit {
+            files: vec![
+                FileEdit::Rename { from: from.clone().into(), to: to.clone().into() },
+                FileEdit::Delete {
+                    path: (if cfg!(windows) { tmp.path().join("Assets/moved") } else { to.clone() })
+                        .join("Linked/sentinel")
+                        .into(),
+                    recursive: false,
+                },
+            ],
+            ..Default::default()
+        })
+        .unwrap_err();
+    assert!(error.message.contains("do not follow links"));
+    assert!(from.exists() && !to.exists());
+    assert_eq!(fs::read_to_string(outside.path().join("sentinel")).unwrap(), "keep");
+}
+
+#[test]
+fn directory_transactions_reject_nested_links_before_snapshotting() {
+    for delete in [false, true] {
+        let tmp = project();
+        let outside = tempfile::tempdir().unwrap();
+        fs::write(outside.path().join("sentinel"), "keep").unwrap();
+        let from = tmp.path().join("Assets/Group");
+        fs::create_dir(&from).unwrap();
+        dir_link(outside.path(), &from.join("Linked"));
+        let to = tmp.path().join("Assets/Moved");
+        let file = if delete {
+            FileEdit::Delete { path: from.clone().into(), recursive: true }
+        } else {
+            FileEdit::Rename { from: from.clone().into(), to: to.clone().into() }
+        };
+        let docs = Documents::new(Arc::new(|_| {}), Box::new(|_: &Path, _: Option<&str>| LanguageId::new("plaintext")));
+        let error = docs.apply_workspace_edit(&WorkspaceEdit { files: vec![file], ..Default::default() }).unwrap_err();
+        assert!(error.message.contains("do not follow links"));
+        assert!(from.exists() && !to.exists());
+        assert_eq!(fs::read_to_string(outside.path().join("sentinel")).unwrap(), "keep");
+    }
+}

crates/ide-workspace/src/unity/assets/workspace_edit.rs

@@ -0,0 +1,99 @@
+//! Include sidecars in the document transaction's preflight, recovery and undo.
+use super::{exists, fs, is_link, key, meta_path, no_links, project_root, validate_asset};
+use ide_core::{FileEdit, IdeError, IdeResult, WorkspaceEdit};
+use std::path::Path;
+
+pub(crate) fn validate_workspace_edit_paths(edit: &WorkspaceEdit) -> IdeResult<()> {
+    for file in &edit.files {
+        let validate = |path: &Path| -> IdeResult<()> {
+            validate_asset(path)?;
+            no_links(&meta_path(path))?;
+            no_nested_links(path)
+        };
+        match file {
+            FileEdit::Rename { from, to } if project_root(from).is_some() || project_root(to).is_some() => {
+                validate(from)?;
+                validate(to)?;
+            }
+            FileEdit::Delete { path, .. } if project_root(path).is_some() => validate(path)?,
+            _ => {}
+        }
+    }
+    Ok(())
+}
+
+// Transactions snapshot directories recursively. Reject linked descendants
+// before backup, including junctions and children renamed by a later operation.
+fn no_nested_links(path: &Path) -> IdeResult<()> {
+    let metadata = match fs::symlink_metadata(path) {
+        Ok(metadata) => metadata,
+        Err(error) if error.kind() == std::io::ErrorKind::NotFound => return Ok(()),
+        Err(error) => return Err(error.into()),
+    };
+    if is_link(&metadata) {
+        return Err(IdeError::invalid(format!("Unity asset operations do not follow links: {}", path.display())));
+    }
+    if metadata.is_dir() {
+        for entry in fs::read_dir(path)? {
+            no_nested_links(&entry?.path())?;
+        }
+    }
+    Ok(())
+}
+
+// Resolve against the state produced by earlier operations without touching disk.
+// This also handles renaming a folder before renaming/deleting a child asset.
+fn present(path: &Path, preceding: &[FileEdit]) -> bool {
+    let mut path = path.to_path_buf();
+    for op in preceding.iter().rev() {
+        match op {
+            FileEdit::Rename { from, to } => {
+                if let Ok(relative) = path.strip_prefix(to) {
+                    // Joining an empty suffix adds a separator to a file path;
+                    // that makes an existing sidecar look like a missing directory.
+                    path = if relative.as_os_str().is_empty() { from.to_path_buf() } else { from.join(relative) };
+                } else if path.starts_with(from) {
+                    return false;
+                }
+            }
+            FileEdit::Delete { path: deleted, .. } if path.starts_with(deleted) => return false,
+            FileEdit::Create { path: created, .. } if path == created.to_path_buf() => return true,
+            _ => {}
+        }
+    }
+    exists(&path)
+}
+
+pub(crate) fn expand_workspace_edit(edit: &mut WorkspaceEdit) -> IdeResult<()> {
+    let mut files = Vec::new();
+    for file in &edit.files {
+        match file {
+            FileEdit::Rename { from, to } if project_root(from).is_some() || project_root(to).is_some() => {
+                validate_asset(from)?;
+                validate_asset(to)?;
+                let source = meta_path(from);
+                let destination = meta_path(to);
+                no_links(&source)?;
+                no_links(&destination)?;
+                if present(&destination, &files) && key(&source) != key(&destination) {
+                    return Err(IdeError::invalid(format!("{} already exists", destination.display())));
+                }
+                if present(&source, &files) {
+                    files.push(FileEdit::Rename { from: source.into(), to: destination.into() });
+                }
+            }
+            FileEdit::Delete { path, .. } if project_root(path).is_some() => {
+                validate_asset(path)?;
+                let meta = meta_path(path);
+                no_links(&meta)?;
+                if present(&meta, &files) {
+                    files.push(FileEdit::Delete { path: meta.into(), recursive: false });
+                }
+            }
+            _ => {}
+        }
+        files.push(file.clone());
+    }
+    edit.files = files;
+    Ok(())
+}

crates/ide-workspace/tests/file_operations.rs

@@ -0,0 +1,147 @@
+use ide_workspace::file_ops;
+use std::{fs, path::Path};
+
+fn metadata_path(path: &Path) -> std::path::PathBuf {
+    let mut name = path.as_os_str().to_os_string();
+    name.push(".meta");
+    name.into()
+}
+
+fn unity_project(root: &Path) {
+    fs::create_dir_all(root.join("Assets")).unwrap();
+    fs::create_dir_all(root.join("ProjectSettings")).unwrap();
+    fs::write(root.join("ProjectSettings/ProjectVersion.txt"), "m_EditorVersion: 2022.3.40f1").unwrap();
+}
+
+fn directory_alias(target: &Path, alias: &Path) {
+    #[cfg(unix)]
+    std::os::unix::fs::symlink(target, alias).unwrap();
+    #[cfg(windows)]
+    {
+        use std::os::windows::process::CommandExt;
+        let output = std::process::Command::new("cmd")
+            .args(["/c", "mklink", "/J"])
+            .arg(alias.to_string_lossy().replace('/', "\\"))
+            .arg(target.to_string_lossy().replace('/', "\\"))
+            .creation_flags(0x08000000)
+            .output()
+            .unwrap();
+        assert!(output.status.success(), "{}", String::from_utf8_lossy(&output.stderr));
+    }
+}
+
+#[test]
+fn ordinary_rename_through_an_alias_keeps_vfs_same_file_behavior() {
+    let dir = tempfile::tempdir().unwrap();
+    let aliases = tempfile::tempdir().unwrap();
+    let alias = aliases.path().join("project");
+    directory_alias(dir.path(), &alias);
+    let from = dir.path().join("File.txt");
+    let to = alias.join("File.txt");
+    fs::write(&from, "keep").unwrap();
+    ide_vfs::rename(&from, &to).unwrap();
+    file_ops::rename(&from, &to).unwrap();
+    let copied = alias.join("Copy.txt");
+    file_ops::copy(&to, &copied).unwrap();
+    assert_eq!(fs::read_to_string(copied).unwrap(), "keep");
+    assert_eq!(fs::read_to_string(from).unwrap(), "keep");
+}
+
+#[test]
+fn plain_files_and_non_assets_in_unity_keep_adjacent_metadata_untouched() {
+    for unity in [false, true] {
+        let dir = tempfile::tempdir().unwrap();
+        if unity {
+            unity_project(dir.path());
+        }
+        let from = dir.path().join("File.txt");
+        let copied = dir.path().join("Copy.txt");
+        let renamed = dir.path().join("file.txt");
+        fs::write(&from, "data").unwrap();
+        fs::write(metadata_path(&from), "unrelated").unwrap();
+        file_ops::copy(&from, &copied).unwrap();
+        assert!(!metadata_path(&copied).exists());
+        file_ops::rename(&from, &renamed).unwrap();
+        assert_eq!(fs::read_to_string(&renamed).unwrap(), "data");
+        assert_eq!(file_ops::deletion_paths(&renamed).unwrap(), [renamed]);
+        assert_eq!(fs::read_to_string(metadata_path(&from)).unwrap(), "unrelated");
+    }
+}
+
+#[test]
+fn mixed_move_and_undo_apply_rules_only_to_unity_assets() {
+    use ide_core::{LanguageId, WorkspaceEdit};
+    use ide_workspace::{Documents, FileMove, FileMoves};
+    use std::sync::Arc;
+
+    let unity = tempfile::tempdir().unwrap();
+    unity_project(unity.path());
+    let plain = tempfile::tempdir().unwrap();
+    let aliases = tempfile::tempdir().unwrap();
+    let alias = aliases.path().join("plain");
+    directory_alias(plain.path(), &alias);
+    let source = unity.path().join("Assets/Player.cs");
+    let destination = unity.path().join("Assets/Hero.cs");
+    let ordinary = alias.join("plain.txt");
+    let ordinary_to = alias.join("moved.txt");
+    fs::write(&source, "class Player {}").unwrap();
+    fs::write(metadata_path(&source), "guid: 11111111111111111111111111111111\n").unwrap();
+    fs::write(&ordinary, "plain").unwrap();
+    fs::write(metadata_path(&ordinary), "unrelated").unwrap();
+    let docs = Documents::new(Arc::new(|_| {}), Box::new(|_: &Path, _: Option<&str>| LanguageId::new("plaintext")));
+    let moves = FileMoves::new();
+    let token = moves
+        .perform(
+            &docs,
+            None,
+            &[
+                FileMove { from: ordinary.clone().into(), to: ordinary_to.clone().into() },
+                FileMove { from: source.clone().into(), to: destination.clone().into() },
+            ],
+            &WorkspaceEdit::default(),
+            "Move",
+            &|_| Ok(()),
+        )
+        .unwrap();
+    assert!(destination.exists() && metadata_path(&destination).exists());
+    assert!(ordinary_to.exists() && !metadata_path(&ordinary_to).exists());
+    assert!(metadata_path(&ordinary).exists());
+    moves.undo(&docs, token).unwrap();
+    assert!(source.exists() && metadata_path(&source).exists());
+    assert!(ordinary.exists() && metadata_path(&ordinary).exists());
+    assert!(!destination.exists() && !metadata_path(&destination).exists());
+
+    let blocker = alias.join("blocked");
+    fs::write(&blocker, "not a directory").unwrap();
+    assert!(
+        moves
+            .perform(
+                &docs,
+                None,
+                &[
+                    FileMove { from: source.clone().into(), to: destination.clone().into() },
+                    FileMove { from: ordinary.clone().into(), to: blocker.join("file.txt").into() },
+                ],
+                &WorkspaceEdit::default(),
+                "Move",
+                &|_| Ok(()),
+            )
+            .is_err()
+    );
+    assert!(source.exists() && metadata_path(&source).exists());
+    assert!(ordinary.exists() && metadata_path(&ordinary).exists());
+    assert!(!destination.exists() && !metadata_path(&destination).exists());
+}
+
+#[test]
+fn vfs_operations_remain_unaware_of_unity_metadata() {
+    let dir = tempfile::tempdir().unwrap();
+    unity_project(dir.path());
+    let from = dir.path().join("Assets/Player.cs");
+    let to = dir.path().join("Assets/Hero.cs");
+    fs::write(&from, "code").unwrap();
+    fs::write(metadata_path(&from), "metadata").unwrap();
+    ide_vfs::rename(&from, &to).unwrap();
+    assert!(to.exists() && !metadata_path(&to).exists());
+    assert!(metadata_path(&from).exists());
+}

crates/ide-workspace/tests/workspace_edits.rs

@@ -9,6 +9,95 @@ fn documents() -> Documents {
     Documents::new(Arc::new(NullSink), Box::new(|_, _| LanguageId::plain_text()))
 }
 
+fn meta(path: &std::path::Path) -> std::path::PathBuf {
+    let mut name = path.as_os_str().to_os_string();
+    name.push(".meta");
+    name.into()
+}
+
+fn unity_project() -> tempfile::TempDir {
+    let tmp = tempfile::tempdir().unwrap();
+    std::fs::create_dir_all(tmp.path().join("Assets")).unwrap();
+    std::fs::create_dir_all(tmp.path().join("ProjectSettings")).unwrap();
+    std::fs::write(tmp.path().join("ProjectSettings/ProjectVersion.txt"), "m_EditorVersion: 2022.3.40f1\n").unwrap();
+    tmp
+}
+
+#[test]
+fn unity_rename_chain_and_delete_share_metadata_undo() {
+    let tmp = unity_project();
+    let original = tmp.path().join("Assets/Player.cs");
+    let renamed = tmp.path().join("Assets/Hero.cs");
+    std::fs::write(&original, "old").unwrap();
+    std::fs::write(meta(&original), "guid: unchanged").unwrap();
+    let (docs, events) = recorded_documents();
+    docs.apply_workspace_edit(&WorkspaceEdit {
+        files: vec![
+            FileEdit::Rename { from: original.clone().into(), to: renamed.clone().into() },
+            FileEdit::Delete { path: renamed.clone().into(), recursive: false },
+        ],
+        ..Default::default()
+    })
+    .unwrap();
+    for path in [&original, &renamed, &meta(&original), &meta(&renamed)] {
+        assert!(!path.exists(), "{} should be removed", path.display());
+    }
+    docs.undo_workspace_edit(undo_id(&events)).unwrap();
+    assert_eq!(std::fs::read_to_string(&original).unwrap(), "old");
+    assert_eq!(std::fs::read_to_string(meta(&original)).unwrap(), "guid: unchanged");
+    assert!(!renamed.exists() && !meta(&renamed).exists());
+}
+
+#[test]
+fn unity_metadata_conflict_keeps_earlier_edits_unchanged() {
+    let tmp = unity_project();
+    let original = tmp.path().join("Assets/Player.cs");
+    let renamed = tmp.path().join("Assets/Hero.cs");
+    std::fs::write(&original, "old").unwrap();
+    std::fs::write(meta(&original), "guid: original").unwrap();
+    std::fs::write(meta(&renamed), "guid: orphan").unwrap();
+    assert!(
+        documents()
+            .apply_workspace_edit(&WorkspaceEdit {
+                files: vec![
+                    edit(&original, "new"),
+                    FileEdit::Rename { from: original.clone().into(), to: renamed.clone().into() }
+                ],
+                ..Default::default()
+            })
+            .is_err()
+    );
+    assert_eq!(std::fs::read_to_string(&original).unwrap(), "old");
+    assert_eq!(std::fs::read_to_string(meta(&original)).unwrap(), "guid: original");
+    assert_eq!(std::fs::read_to_string(meta(&renamed)).unwrap(), "guid: orphan");
+}
+
+#[test]
+fn unity_folder_rename_then_child_rename_preserves_metadata() {
+    let tmp = unity_project();
+    let folder = tmp.path().join("Assets/Before");
+    let moved = tmp.path().join("Assets/After");
+    std::fs::create_dir(&folder).unwrap();
+    std::fs::write(meta(&folder), "folder guid").unwrap();
+    std::fs::write(folder.join("Player.cs"), "old").unwrap();
+    std::fs::write(meta(&folder.join("Player.cs")), "script guid").unwrap();
+    let (docs, events) = recorded_documents();
+    docs.apply_workspace_edit(&WorkspaceEdit {
+        files: vec![
+            FileEdit::Rename { from: folder.clone().into(), to: moved.clone().into() },
+            FileEdit::Rename { from: moved.join("Player.cs").into(), to: moved.join("Hero.cs").into() },
+        ],
+        ..Default::default()
+    })
+    .unwrap();
+    assert_eq!(std::fs::read_to_string(meta(&moved)).unwrap(), "folder guid");
+    assert_eq!(std::fs::read_to_string(meta(&moved.join("Hero.cs"))).unwrap(), "script guid");
+    assert!(!meta(&moved.join("Player.cs")).exists());
+    docs.undo_workspace_edit(undo_id(&events)).unwrap();
+    assert_eq!(std::fs::read_to_string(meta(&folder.join("Player.cs"))).unwrap(), "script guid");
+    assert!(!moved.exists() && !meta(&moved).exists());
+}
+
 fn edit(path: &Path, text: &str) -> FileEdit {
     FileEdit::Edit {
         path: path.to_owned().into(),

docs/unity.md

@@ -0,0 +1,23 @@
+# Unity projects
+
+Open the folder containing `Assets` and `ProjectSettings/ProjectVersion.txt`.
+OpenIDEA detects Unity without requiring a generated solution and shows the editor
+version in the Unity project view.
+
+The Unity view hides `.meta` files, generated C# project files and cache/build
+folders. **Show Meta Files** and **Show Generated Files** reveal them independently;
+the regular Project view is still available. Generated folders are excluded from
+indexing and search, including folders Unity creates after the project is opened.
+
+Operations on assets inside `Assets` include their `.meta` files. Rename and move
+preserve GUIDs, deletion removes both files, and copy generates new GUIDs and updates
+references within the copied group. References to assets outside the group stay
+unchanged. File move undo and transactional workspace edits include metadata too.
+Destination metadata conflicts are rejected before making changes.
+
+Projects may be opened through a linked root or parent directory, including macOS
+`/var` and `/tmp`. Links inside the project (including Windows junctions) are not
+followed by asset operations. For moves/copies to or from ordinary directories,
+the external path must have no linked ancestors. Cross-volume asset moves and
+copies that require rewriting binary serialized assets are rejected; use Unity
+for those operations.

fixtures/README.md

@@ -20,7 +20,10 @@ The fixtures are standalone: `rust-app` declares its own `[workspace]` and
 
 The language smoke test (`crates/ide-host/tests/language_smoke.rs`) runs completion,
 navigation, diagnostics, quick fixes, formatting and rename on these projects with real
-language servers: when you change a fixture, run it for that language.
+language servers, `smoke/run.test.ts` runs each project's run and test configurations
+(the intentionally failing test included, then Rerun Failed Tests), and `smoke/debug.test.ts`
+debugs its entry point from the "Set a breakpoint here" line: when you change a fixture, run
+them for that language.
 
 ## Setup
 

knip.ts

@@ -9,6 +9,7 @@ const config: KnipConfig = {
     "scripts/**/*.ts",
     "perf/**/*.ts",
     "e2e/**/*.ts",
+    "smoke/**/*.ts",
   ],
   // Plugins' web pages are projects of their own (own package.json, checked by plugins/build.sh and CI).
   ignore: ["plugins/**/web-src/**"],

languages/csharp.toml

@@ -10,7 +10,7 @@ tree-sitter = "csharp"
 [[language-servers]]
 name = "csharp-ls"
 command = "csharp-ls"
-root-markers = ["*.sln", "*.slnx", "*.csproj", "global.json", "Directory.Build.props"]
+root-markers = ["*.sln", "*.slnx", "*.csproj", "global.json", "Directory.Build.props", "ProjectSettings/ProjectVersion.txt"]
 install-hint = "dotnet tool install --global csharp-ls"
 
 [debugger]

languages/javascript.toml

@@ -24,6 +24,14 @@ useAliasesForRenames = false
 [language-servers.initialization-options.javascript.preferences]
 useAliasesForRenames = false
 
+# Moving a file: the IDE asks for the import updates up front (preview, undo); the server
+# doesn't prompt after the move.
+[language-servers.initialization-options.typescript.updateImportsOnFileMove]
+enabled = "never"
+
+[language-servers.initialization-options.javascript.updateImportsOnFileMove]
+enabled = "never"
+
 [[language-servers]]
 name = "typescript-language-server"
 tsserver-project = true

languages/javascriptreact.toml

@@ -23,6 +23,14 @@ useAliasesForRenames = false
 [language-servers.initialization-options.javascript.preferences]
 useAliasesForRenames = false
 
+# Moving a file: the IDE asks for the import updates up front (preview, undo); the server
+# doesn't prompt after the move.
+[language-servers.initialization-options.typescript.updateImportsOnFileMove]
+enabled = "never"
+
+[language-servers.initialization-options.javascript.updateImportsOnFileMove]
+enabled = "never"
+
 [[language-servers]]
 name = "typescript-language-server"
 tsserver-project = true

languages/typescript.toml

@@ -23,6 +23,14 @@ useAliasesForRenames = false
 [language-servers.initialization-options.javascript.preferences]
 useAliasesForRenames = false
 
+# Moving a file: the IDE asks for the import updates up front (preview, undo); the server
+# doesn't prompt after the move.
+[language-servers.initialization-options.typescript.updateImportsOnFileMove]
+enabled = "never"
+
+[language-servers.initialization-options.javascript.updateImportsOnFileMove]
+enabled = "never"
+
 [[language-servers]]
 name = "typescript-language-server"
 tsserver-project = true

languages/typescriptreact.toml

@@ -23,6 +23,14 @@ useAliasesForRenames = false
 [language-servers.initialization-options.javascript.preferences]
 useAliasesForRenames = false
 
+# Moving a file: the IDE asks for the import updates up front (preview, undo); the server
+# doesn't prompt after the move.
+[language-servers.initialization-options.typescript.updateImportsOnFileMove]
+enabled = "never"
+
+[language-servers.initialization-options.javascript.updateImportsOnFileMove]
+enabled = "never"
+
 [[language-servers]]
 name = "typescript-language-server"
 tsserver-project = true

languages/vue.toml

@@ -30,6 +30,14 @@ useAliasesForRenames = false
 [language-servers.initialization-options.javascript.preferences]
 useAliasesForRenames = false
 
+# Moving a file: the IDE asks for the import updates up front (preview, undo); the server
+# doesn't prompt after the move.
+[language-servers.initialization-options.typescript.updateImportsOnFileMove]
+enabled = "never"
+
+[language-servers.initialization-options.javascript.updateImportsOnFileMove]
+enabled = "never"
+
 [[language-servers]]
 name = "oxlint"
 command = "oxlint"

package.json

@@ -12,11 +12,12 @@
     "tauri": "node scripts/tauri.ts",
     "test": "vitest run",
     "test:watch": "vitest",
+    "smoke": "vitest run --config smoke/vitest.config.ts",
     "lint": "oxlint",
     "format": "oxfmt",
     "format:check": "oxfmt --check",
     "knip": "knip",
-    "typecheck": "tsrs --noEmit && tsrs -p tsconfig.node.json --noEmit && tsrs -p perf --noEmit && tsrs -p scripts --noEmit",
+    "typecheck": "tsrs --noEmit && tsrs -p tsconfig.node.json --noEmit && tsrs -p perf --noEmit && tsrs -p scripts --noEmit && tsrs -p smoke --noEmit",
     "gen:bindings": "cargo test -p openidea --test export_bindings",
     "gen:windows-icons": "node scripts/gen-windows-icons.ts",
     "gen:angular-grammar": "lezer-generator src/editor/core/cm/angular/angular.grammar --typeScript -o src/editor/core/cm/angular/parser.ts",

plugins/README.md

@@ -125,23 +125,23 @@ work), but 0.1 code no longer runs: rebuild it against the 1.0 SDK.
 
 ### Contribution points
 
-| Point           | Declaration                                                                                        | Code needed   |
-| --------------- | -------------------------------------------------------------------------------------------------- | ------------- |
-| `commands`      | `id`, `title`, `category?`, `when?`                                                                | to run them   |
-| `themes`        | `path` (theme JSON), `editor-scheme?`                                                              | no            |
-| `iconThemes`    | `id`, `label`, `path` (icon theme JSON, see §5)                                                    | no            |
-| `languages`     | `path` (`languages/<id>.toml` format, see §6)                                                      | no            |
-| `runDetectors`  | `id`, `name`, `files`, `command`, `args?`, `test?` (§6.2)                                          | no            |
-| `providers`     | `kinds`, `languages` (editor providers, see _Providers_)                                           | yes           |
-| `secrets`       | `name`, `label`, `description?` (see _Network_)                                                    | to use them   |
-| `menus`         | `menu` (`editor.context`, `projectView.context`, `editorTab.context`, `tools`), `command`, `when?` | no            |
-| `keymaps`       | `command`, `key`, `mac?` (`Ctrl+Alt+C`; a chord: `Meta+K Meta+C`)                                  | no            |
-| `statusBar`     | `id`, `text`, `tooltip?`, `command?`, `align?`, `priority?`                                        | no            |
-| `settings`      | `schema` (JSON file), `title?` — one table, see _Settings_                                         | no            |
-| `views`         | `id`, `title`, `icon?`, `location` (`left`, `right`, `bottom`), `web?` (see _Web views_)           | without `web` |
-| `customEditors` | `id`, `title`, `patterns` (file names), `priority` (`default`, `option`), `layout?`, `web?`        | without `web` |
-| `fileIcons`     | `id`, `patterns` (file names), `icon` (SVG), `iconDark?` — whatever icon theme is in use           | no            |
-| `fileTemplates` | `id`, `name`, `extension`, `path` (the new file's content; template variables work) — New menu     | no            |
+| Point           | Declaration                                                                                                                       | Code needed   |
+| --------------- | --------------------------------------------------------------------------------------------------------------------------------- | ------------- |
+| `commands`      | `id`, `title`, `category?`, `when?`                                                                                               | to run them   |
+| `themes`        | `path` (theme JSON), `editor-scheme?`                                                                                             | no            |
+| `iconThemes`    | `id`, `label`, `path` (icon theme JSON, see §5)                                                                                   | no            |
+| `languages`     | `path` (`languages/<id>.toml` format, see §6)                                                                                     | no            |
+| `runDetectors`  | `id`, `name`, `files`, `command`, `args?`, `test?` (§6.2)                                                                         | no            |
+| `providers`     | `kinds`, `languages` (editor providers, see _Providers_)                                                                          | yes           |
+| `secrets`       | `name`, `label`, `description?` (see _Network_)                                                                                   | to use them   |
+| `menus`         | `menu` (`editor.context`, `projectView.context`, `editorTab.context`, `tools`), `command`, `when?`                                | no            |
+| `keymaps`       | `command`, `key`, `mac?` (`Ctrl+Alt+C`; a chord: `Meta+K Meta+C`)                                                                 | no            |
+| `statusBar`     | `id`, `text`, `tooltip?`, `command?`, `align?`, `priority?`                                                                       | no            |
+| `settings`      | `schema` (JSON file), `title?` — one table, see _Settings_                                                                        | no            |
+| `views`         | `id`, `title`, `icon?` (an icon name, or an SVG of the package), `location` (`left`, `right`, `bottom`), `web?` (see _Web views_) | without `web` |
+| `customEditors` | `id`, `title`, `patterns` (file names), `priority` (`default`, `option`), `layout?`, `web?`                                       | without `web` |
+| `fileIcons`     | `id`, `patterns` (file names), `icon` (SVG), `iconDark?` — whatever icon theme is in use                                          | no            |
+| `fileTemplates` | `id`, `name`, `extension`, `path` (the new file's content; template variables work) — New menu                                    | no            |
 
 Declared contributions are live as soon as the plugin is enabled — commands
 show in Find Action, menus and the status bar, shortcuts work, themes and icon
@@ -313,6 +313,7 @@ then run `openidea-plugin check`.
 | `host::refresh_view(view)`                                               | `views.refresh`                  | The view (or custom editors) render again; call it when the content changed.                                                                                                                                         |
 | `host::post_view_message(view, text)`                                    | `views.post-message`             | To the script of the view's `html` body.                                                                                                                                                                             |
 | `host::open_terminal(title, program, args)`                              | `views.open-terminal`            | A terminal tab in the invoking window running the approved `process:<program>` in the project root: output that keeps coming, interactive sessions.                                                                  |
+| `host::open_location(path, line, column)`                                | `views.open-location`            | Opens a file inside the project in an editor of the invoking window, the caret at `line`/`column` (0-based, UTF-16): a view's links to code. Needs `project.read`.                                                   |
 | `host::setting(key)`, `setting_bool`, `setting_string`, `setting_number` | `settings.get`                   | The user's value (project over global) or the schema's default.                                                                                                                                                      |
 
 `run-command` receives an optional string argument: `executeAction("plugin.<plugin id>.<command id>", "arg")`

plugins/official/ai-completion/dist/plugin.wasm.sources

@@ -1 +1 @@
-28e4bf10a41bdda011111b0e150ebe96205c57f410bad98c19eea3f1286349d6
+9ad412cb7b853d40467c67305a1126bb87910d179ecfa1c88e13d4a900367c50

plugins/official/checkstyle/dist/plugin.wasm.sources

@@ -1 +1 @@
-7e015486cc916f5edbac542863373fd7204f5bcd534f6c408d5f9d2b72913862
+49a3c6bf2511ba137457397203244bdfca3d6e10f62dbc7fde9473dab07f6457

plugins/official/csv-editor/dist/plugin.wasm.sources

@@ -1 +1 @@
-a6cf59e74595e13908e2cbf1752c58665c6963de258413c9d7332d2a7dd9cbd0
+c199dc52e00d3943882d532e7e6095f7b2f8d7d6026cf1ccaa685dd6300f2319

plugins/official/git-toolbox/dist/plugin.wasm.sources

@@ -1 +1 @@
-b8dde206a74b222b93e61056d4cbe403617ae240d142e01e91420a2aacdb2da4
+6047be5eeaa1330d7aa1f182e88ae2f352f244829ad9a01fdc3a2a081bdca95d

plugins/official/graphviz/dist/plugin.wasm.sources

@@ -1 +1 @@
-a681c2abd4a65d6aeb62efd514e9b170f4fca52b0c14d2d380a3b04be0a3fbc6
+7a3ee410d228d1e39155aa042237d222d23d7f5a45e261086cffc45c6ee1ad32