feat(nuxi): cli wrapper for self restart

packages/nuxi/bin/nuxi.mjs

@@ -1,3 +1,33 @@
 #!/usr/bin/env node
-process._startTime = Date.now()
-import('../dist/cli.mjs').then(r => (r.default || r).main())
+import { fileURLToPath } from 'node:url'
+import { execa } from 'execa'
+
+const EXIT_CODE_RESTART = 44
+
+const ENTRY = new URL('../dist/cli-run.mjs', import.meta.url)
+
+async function start (preArgs, postArgs) {
+  const child = await execa(
+    'node',
+    [
+      ...preArgs,
+      fileURLToPath(ENTRY),
+      ...postArgs
+    ],
+    {
+      reject: false,
+      stdio: 'inherit',
+      env: {
+        ...process.env,
+        NUXI_CLI_WRAPPER: 'true'
+      }
+    }
+  )
+  if (child.exitCode === EXIT_CODE_RESTART) {
+    await start(preArgs, postArgs)
+  } else {
+    process.exit(child.exitCode)
+  }
+}
+
+start([], process.argv.slice(2))

packages/nuxi/build.config.ts

@@ -10,6 +10,7 @@ export default defineBuildConfig({
   },
   entries: [
     'src/cli',
+    'src/cli-run',
     'src/index'
   ],
   externals: [

packages/nuxi/src/cli-run.ts

@@ -0,0 +1,4 @@
+// @ts-ignore
+process._startTime = Date.now()
+// @ts-ignore
+import('./cli').then(r => (r.default || r).main())

packages/nuxi/src/run.ts

@@ -11,3 +11,15 @@ export async function runCommand (command: string, argv = process.argv.slice(2))
   }
   await cmd.invoke(args)
 }
+
+/**
+ * Special exit code to restart the process
+ *
+ * Usage:
+ * ```ts
+ * if (process.env.NUXI_CLI_WRAPPER) {
+ *   process.exit(EXIT_CODE_RESTART)
+ * }
+ * ```
+ */
+export const EXIT_CODE_RESTART = 44