Personal Website, vers. 1 (pushed far to late)

scripts/dev.js

@@ -0,0 +1,62 @@
+import * as esbuild from 'esbuild';
+import { spawn } from 'node:child_process';
+import { existsSync, watch } from 'node:fs';
+import { mkdir, rm } from 'node:fs/promises';
+import { buildOptions, outdir, writeManifest } from './build.js';
+
+await rm('dist', { recursive: true, force: true });
+await mkdir(outdir, { recursive: true });
+
+const ctx = await esbuild.context({
+  ...buildOptions({ dev: true }),
+  plugins: [
+    {
+      name: 'manifest',
+      setup(build) {
+        build.onEnd((result) => result.metafile && writeManifest(result.metafile));
+      },
+    },
+  ],
+});
+await ctx.watch();
+
+// Restarting the server ourselves instead of node --watch-path: on Node 24 the
+// watch-mode parent sometimes crashes on shutdown and leaves the server running.
+const args = [...(existsSync('.env') ? ['--env-file=.env'] : []), 'src/server.js'];
+let server;
+
+function start() {
+  server = spawn(process.execPath, args, { stdio: 'inherit', env: { ...process.env, NODE_ENV: 'development' } });
+}
+
+function restart() {
+  if (!server || server.exitCode !== null) return start();
+  server.once('exit', start);
+  server.kill();
+}
+
+let timer;
+for (const dir of ['src', 'locales']) {
+  watch(dir, { recursive: true }, (event, file) => {
+    if (file?.endsWith('.njk')) return; // templates are re-read on every request anyway
+    clearTimeout(timer);
+    timer = setTimeout(() => {
+      console.log(`[dev] ${dir}/${file} changed, restarting`);
+      restart();
+    }, 150);
+  });
+}
+
+start();
+
+async function stop() {
+  await ctx.dispose();
+  if (server?.exitCode === null) {
+    server.once('exit', () => process.exit(0));
+    server.kill();
+  } else {
+    process.exit(0);
+  }
+}
+process.on('SIGINT', stop);
+process.on('SIGTERM', stop);