singularity-forge/scripts/watch-resources.js
2026-05-05 14:46:18 +02:00

73 lines
2.1 KiB
JavaScript

#!/usr/bin/env node
/**
* Watch src/resources/ and sync changes to dist/resources/.
*
* Runs alongside `tsc --watch` to ensure non-TS resources (prompts, agents,
* skills, workflow files) are kept in sync with the build output.
*
* This solves the `npm link` branch-drift problem: without dist/resources/,
* `initResources()` reads from src/resources/ which changes with git branch
* switches, causing stale extensions to be synced to ~/.sf/agent/ for ALL
* projects using sf.
*/
import { cpSync, mkdirSync, rmSync, watch } from "node:fs";
import { resolve } from "node:path";
const __dirname = import.meta.dirname;
const src = resolve(__dirname, "..", "src", "resources");
const dest = resolve(__dirname, "..", "dist", "resources");
function sync() {
// Remove dest first to mirror deletions from src (prevents stale files)
rmSync(dest, { recursive: true, force: true });
mkdirSync(dest, { recursive: true });
cpSync(src, dest, { recursive: true, force: true });
}
// Initial sync
sync();
process.stderr.write(`[watch-resources] Initial sync done\n`);
// Watch for changes — recursive, debounced.
// fs.watch({ recursive: true }) is supported on macOS and Windows.
// On Linux (Node <20.13) it throws ERR_FEATURE_UNAVAILABLE_ON_PLATFORM.
// Fall back to polling on unsupported platforms.
let timer = null;
let fsWatcher = null;
let pollInterval = null;
const onChange = () => {
if (timer) clearTimeout(timer);
timer = setTimeout(() => {
sync();
process.stderr.write(
`[watch-resources] Synced at ${new Date().toLocaleTimeString()}\n`,
);
}, 300);
};
try {
fsWatcher = watch(src, { recursive: true }, onChange);
} catch {
// Fallback: poll every 2s (Linux without recursive watch support)
process.stderr.write(
`[watch-resources] fs.watch recursive not supported, falling back to polling\n`,
);
pollInterval = setInterval(() => {
try {
sync();
} catch {}
}, 2000);
}
process.on("exit", () => {
if (timer) clearTimeout(timer);
if (fsWatcher) fsWatcher.close();
if (pollInterval) clearInterval(pollInterval);
});
process.stderr.write(
`[watch-resources] Watching src/resources/ → dist/resources/\n`,
);