80 lines
No EOL
2.5 KiB
JavaScript
80 lines
No EOL
2.5 KiB
JavaScript
/* 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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const { comparePaths } = require('./utils');
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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 localOptions = {
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filename: sourcefile
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};
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const outfile = path.join('build', sourcefile.replace('.jsx', '.js'));
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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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// Patch react
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if (comparePaths(sourcefile, 'resource/react.js')) {
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transformed = contents.replace('instanceof Error', '.constructor.name == "Error"')
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}
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// Patch react-dom
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else if (comparePaths(sourcefile, 'resource/react-dom.js')) {
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transformed = contents.replace(/ ownerDocument\.createElement\((.*?)\)/gi, 'ownerDocument.createElementNS(HTML_NAMESPACE, $1)')
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.replace('element instanceof win.HTMLIFrameElement',
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'typeof element != "undefined" && element.tagName.toLowerCase() == "iframe"')
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.replace("isInputEventSupported = false", 'isInputEventSupported = true');
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}
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// Patch react-virtualized
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else if (comparePaths(sourcefile, 'resource/react-virtualized.js')) {
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transformed = contents.replace('scrollDiv = document.createElement("div")', 'scrollDiv = document.createElementNS("http://www.w3.org/1999/xhtml", "div")')
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.replace('document.body.appendChild(scrollDiv)', 'document.documentElement.appendChild(scrollDiv)')
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.replace('document.body.removeChild(scrollDiv)', 'document.documentElement.removeChild(scrollDiv)');
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}
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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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({ code: transformed } = await babel.transformAsync(
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contents,
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Object.assign(
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localOptions,
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options
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)
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));
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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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} |