redirect uncaught errors to log file

packages/opencode/src/index.ts

@@ -26,6 +26,18 @@ import { ServeCommand } from "./cli/cmd/serve"
 
 const cancel = new AbortController()
 
+process.on("unhandledRejection", (e) => {
+  Log.Default.error("rejection", {
+    e: e instanceof Error ? e.message : e,
+  })
+})
+
+process.on("uncaughtException", (e) => {
+  Log.Default.error("exception", {
+    e: e instanceof Error ? e.message : e,
+  })
+})
+
 const cli = yargs(hideBin(process.argv))
   .scriptName("opencode")
   .help("help", "show help")
@@ -54,7 +66,12 @@ const cli = yargs(hideBin(process.argv))
     handler: async (args) => {
       while (true) {
         const cwd = args.project ? path.resolve(args.project) : process.cwd()
-        process.chdir(cwd)
+        try {
+          process.chdir(cwd)
+        } catch (e) {
+          UI.error("Failed to change directory to " + cwd)
+          return
+        }
         const result = await App.provide({ cwd }, async (app) => {
           const providers = await Provider.list()
           if (Object.keys(providers).length === 0) {