56 lines
1.5 KiB
JavaScript
56 lines
1.5 KiB
JavaScript
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/* global onmessage: true, postMessage: false */
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'use strict';
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const fs = require('fs-extra');
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const path = require('path');
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const babel = require('babel-core');
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const multimatch = require('multimatch');
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const options = JSON.parse(fs.readFileSync('.babelrc'));
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const cluster = require('cluster');
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/* exported onmessage */
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async function babelWorker(ev) {
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const t1 = Date.now();
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const sourcefile = ev.file;
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const outfile = path.join('build', sourcefile);
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const postError = (error) => {
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process.send({
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sourcefile,
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outfile,
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error
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});
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};
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var isSkipped = false;
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var transformed;
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try {
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let contents = await fs.readFile(sourcefile, 'utf8');
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if (sourcefile === 'resource/react-dom.js') {
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// patch react
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transformed = contents.replace(/ownerDocument\.createElement\((.*?)\)/gi, 'ownerDocument.createElementNS(DOMNamespaces.html, $1)');
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} else if ('ignore' in options && options.ignore.some(ignoreGlob => multimatch(sourcefile, ignoreGlob).length)) {
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transformed = contents;
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isSkipped = true;
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} else {
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try {
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transformed = babel.transform(contents, options).code;
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} catch (error) { return postError(`Babel error: ${error}`);}
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}
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await fs.outputFile(outfile, transformed);
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const t2 = Date.now();
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process.send({
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isSkipped,
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sourcefile,
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outfile,
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processingTime: t2 - t1
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});
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} catch (error) { return postError(`I/O error: ${error}`); }
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}
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module.exports = babelWorker;
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if (cluster.isWorker) {
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process.on('message', babelWorker);
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}
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