Error handling bugfix: pass #1

dist/commands/dev/dev-spawn.js

@@ -2,13 +2,23 @@ import startServer from "../../functions/server/start-server";
 import { log } from "../../utils/log";
 import bunextInit from "../../functions/bunext-init";
 import grabDirNames from "../../utils/grab-dir-names";
+import writeErrorFile from "../../functions/write-error-file";
 import { rmSync } from "fs";
 const { HYDRATION_DST_DIR, BUNX_CWD_PAGES_REWRITE_DIR } = grabDirNames();
+// The supervisor only restarts the dev server when this process actually
+// exits with a code. Registering a listener that merely logs (the previous
+// behavior) keeps Bun from exiting: the crash is swallowed, no error file is
+// written, and the supervisor never restarts the server. Log, record the real
+// error, and exit non-zero so recovery actually runs.
 process.on("uncaughtException", (error) => {
     log.error(`Uncaught exception: ${error}`);
+    writeErrorFile({ error, exitCode: 1, force: true });
+    process.exit(1);
 });
 process.on("unhandledRejection", (reason) => {
     log.error(`Unhandled rejection: ${reason}`);
+    writeErrorFile({ error: reason, exitCode: 1, force: true });
+    process.exit(1);
 });
 log.info("Running development server ...");
 try {
@@ -21,5 +31,9 @@ try {
     await startServer();
 }
 catch (error) {
+    // Startup failures (e.g. port in use, config errors) must exit non-zero;
+    // otherwise the process hangs alive with no server and no restart.
     log.error(`Failed to start development server: ${error}`);
+    writeErrorFile({ error, exitCode: 1, force: true });
+    process.exit(1);
 }