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44 lines
1.0 KiB
44 lines
1.0 KiB
1 year ago
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/**
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* @file
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*
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* Watch changes to *.es6.js files and compile them to ES5 during development.
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*
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* @internal This file is part of the core javascript build process and is only
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* meant to be used in that context.
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*/
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'use strict';
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const fs = require('fs');
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const path = require('path');
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const chokidar = require('chokidar');
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const changeOrAdded = require('./changeOrAdded');
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const log = require('./log');
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// Match only on .es6.js files.
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const fileMatch = './**/*.es6.js';
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// Ignore everything in node_modules
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const watcher = chokidar.watch(fileMatch, {
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ignoreInitial: true,
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ignored: './node_modules/**'
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});
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const unlinkHandler = (err) => {
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if (err) {
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log(err);
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}
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};
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// Watch for filesystem changes.
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watcher
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.on('add', changeOrAdded)
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.on('change', changeOrAdded)
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.on('unlink', (filePath) => {
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const fileName = filePath.slice(0, -7);
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fs.stat(`${fileName}.js`, () => {
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fs.unlink(`${fileName}.js`, unlinkHandler);
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});
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})
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.on('ready', () => log(`Watching '${fileMatch}' for changes.`));
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