@yandex/themekit/lib/utils/watcher.js

Build system of design-tokens for any platforms

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.watch = void 0;
const chokidar_1 = require("chokidar");
/**
 * Watches for selected paths and call `onChange` after files changed.
 */
function watch(paths, onChange) {
    console.log('\nWatching for changes...');
    let isShutdown = false;
    const watcher = chokidar_1.watch(paths, { ignoreInitial: true, atomic: 500 });
    const onChangeWrapper = () => {
        if (!isShutdown) {
            onChange();
        }
    };
    const onProcessStop = () => {
        isShutdown = true;
        console.log('\nShutting down watch');
        watcher.close();
    };
    watcher.on('unlink', onChangeWrapper);
    watcher.on('add', onChangeWrapper);
    watcher.on('change', onChangeWrapper);
    process.once('SIGINT', onProcessStop);
    process.once('SIGTERM', onProcessStop);
}
exports.watch = watch;