feat: add nsis-string plugin (#43)

.changes/config.json

@@ -63,6 +63,16 @@
           "name": "${ pkg.pkg }.dll"
         }
       ]
+    },
+    "nsis_string": {
+      "path": "./crates/nsis-string",
+      "manager": "rust",
+      "assets": [
+        {
+          "path": "target/i686-pc-windows-msvc/release/${ pkg.pkg }.dll",
+          "name": "${ pkg.pkg }.dll"
+        }
+      ]
     }
   }
 }

.changes/nsis-string.md

@@ -0,0 +1,5 @@
+---
+"nsis_string": "minor"
+---
+
+Initial Release

README.md

@@ -6,6 +6,7 @@ A collection of NSIS plugins written in rust.
 | -------------------------------------------------- | ------------------------------------------------------------------------ |
 | [nsis-process](./crates/nsis-process/)             | Find and Kill processes, and run program as unelevated user              |
 | [nsis-semvercompare](./crates/nsis-semvercompare/) | Compare two semantic versions                                            |
+| [nsis-string](./crates/nsis-string/)               | String manipulation                                                      |
 | [nsis-tauri-utils](./crates/nsis-tauri-utils/)     | A collection of all the above plugins into a single DLL for smaller size |
 
 ## License

crates/nsis-process/src/lib.rs

@@ -93,7 +93,7 @@ fn KillProcess() -> Result<(), Error> {
 
     let processes = get_processes(&name);
 
-    if !processes.is_empty() && processes.into_iter().map(kill).all(|b| b) {
+    if !processes.is_empty() && processes.into_iter().all(kill) {
         push(ZERO)
     } else {
         push(ONE)
@@ -119,10 +119,9 @@ fn KillProcessCurrentUser() -> Result<(), Error> {
         processes
             .into_iter()
             .filter(|pid| belongs_to_user(user_sid, *pid))
-            .map(kill)
-            .all(|b| b)
+            .all(kill)
     } else {
-        processes.into_iter().map(kill).all(|b| b)
+        processes.into_iter().all(kill)
     };
 
     if success {
@@ -388,7 +387,7 @@ mod tests {
         let processes = get_processes("something_that_doesnt_exist.exe");
         // TODO: maybe find some way to spawn a dummy process we can kill here?
         // This will return true on empty iterators so it's basically no-op right now
-        assert!(processes.into_iter().map(kill).all(|b| b));
+        assert!(processes.into_iter().all(kill));
     }
 
     #[test]

crates/nsis-string/CHANGELOG.md

@@ -0,0 +1,14 @@
+# Changelog
+
+## \[0.3.0]
+
+- [`5423579`](https://www.github.com/tauri-apps/nsis-tauri-utils/commit/5423579860016c4f3074831eda03096ee4854e73)([#26](https://www.github.com/tauri-apps/nsis-tauri-utils/pull/26)) Reduce the DLL size by using `no_std` and without static msvcrt.
+
+## \[0.2.0]
+
+- [`33ea4bc`](https://www.github.com/tauri-apps/nsis-tauri-utils/commit/33ea4bcf2a573461ebc5181ef2921d8746005049)([#17](https://www.github.com/tauri-apps/nsis-tauri-utils/pull/17)) Statically link CRT.
+
+## \[0.1.0]
+
+- Initial Release.
+  - [000d632](https://www.github.com/tauri-apps/nsis-tauri-utils/commit/000d6326333f862741f1514de34542316445951e) ci: setup CI/CD and covector ([#2](https://www.github.com/tauri-apps/nsis-tauri-utils/pull/2)) on 2023-01-21

crates/nsis-string/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "nsis-string"
+version = "0.0.0"
+authors = { workspace = true }
+edition = { workspace = true }
+license = { workspace = true }
+
+[lib]
+crate-type = ["cdylib"]
+
+[features]
+test = []
+
+[dependencies]
+nsis-plugin-api = { workspace = true }
+windows-sys = { workspace = true }

crates/nsis-string/build.rs

@@ -0,0 +1,5 @@
+fn main() {
+    if std::env::var("CARGO_FEATURE_TEST").as_deref() != Ok("1") {
+        println!("cargo::rustc-link-arg=/ENTRY:DllMain")
+    }
+}

crates/nsis-string/src/lib.rs

@@ -0,0 +1,24 @@
+#![no_std]
+
+use nsis_plugin_api::*;
+
+nsis_plugin!();
+
+/// Replaces all occurrences of a substring in a string with another substring.
+///
+/// Returns the modified string.
+///
+/// # Safety
+///
+/// This function always expects 3 strings on the stack ($string, $search, $replace) and will panic otherwise.
+#[nsis_fn]
+fn Replace() -> Result<(), Error> {
+    let string = popstr()?;
+    let search = popstr()?;
+    let replace = popstr()?;
+
+    let result = string.replace(&search, &replace);
+    pushstr(&result)?;
+
+    Ok(())
+}