50 lines
1.2 KiB
JavaScript
50 lines
1.2 KiB
JavaScript
import { watch } from 'node:fs';
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import { access, constants, copyFile, mkdir } from 'node:fs/promises';
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import { dirname, join } from 'node:path';
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import { fileURLToPath } from 'node:url';
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const __dirname = dirname(fileURLToPath(import.meta.url));
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const root = join(__dirname, '..');
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const source = join(root, 'dist/phx-frontend-plugin-demo/browser/main.js');
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const dest = join(root, 'latest/main.js');
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async function copyMainJs() {
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try {
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await access(source, constants.F_OK);
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await mkdir(dirname(dest), { recursive: true });
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await copyFile(source, dest);
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console.log('[latest] Copied main.js');
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} catch (err) {
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if (err.code !== 'ENOENT') {
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console.error('[latest] Copy failed:', err.message);
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}
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}
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}
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function watchMainJs() {
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let timeout;
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const debouncedCopy = () => {
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clearTimeout(timeout);
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timeout = setTimeout(copyMainJs, 100);
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};
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const tryWatch = () => {
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access(source, constants.F_OK)
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.then(() => {
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copyMainJs();
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watch(source, debouncedCopy);
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console.log('[latest] Watching for main.js changes');
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})
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.catch(() => setTimeout(tryWatch, 500));
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};
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tryWatch();
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}
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if (process.argv.includes('--watch')) {
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watchMainJs();
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} else {
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copyMainJs();
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}
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