104 lines
2.3 KiB
JavaScript
104 lines
2.3 KiB
JavaScript
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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 debug = require('debug')('ava');
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const sourceMapSupport = require('source-map-support');
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const installPrecompiler = require('require-precompiled');
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// Parse and re-emit AVA messages
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process.on('message', message => {
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if (!message.ava) {
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return;
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}
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process.emit(message.name, message.data);
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});
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exports.send = (name, data) => {
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process.send({
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name: `ava-${name}`,
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data,
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ava: true
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});
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};
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// `process.channel` was added in Node.js 7.1.0, but the channel was available
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// through an undocumented API as `process._channel`.
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exports.ipcChannel = process.channel || process._channel;
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const opts = JSON.parse(process.argv[2]);
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exports.opts = opts;
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// Fake TTY support
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if (opts.tty) {
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process.stdout.isTTY = true;
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process.stdout.columns = opts.tty.columns || 80;
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process.stdout.rows = opts.tty.rows;
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const tty = require('tty');
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const isatty = tty.isatty;
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tty.isatty = function (fd) {
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if (fd === 1 || fd === process.stdout) {
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return true;
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}
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return isatty(fd);
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};
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}
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if (debug.enabled) {
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// Forward the `time-require` `--sorted` flag.
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// Intended for internal optimization tests only.
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if (opts._sorted) {
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process.argv.push('--sorted');
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}
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require('time-require'); // eslint-disable-line import/no-unassigned-import
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}
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const sourceMapCache = new Map();
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const cacheDir = opts.cacheDir;
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exports.installSourceMapSupport = () => {
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sourceMapSupport.install({
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environment: 'node',
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handleUncaughtExceptions: false,
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retrieveSourceMap(source) {
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if (sourceMapCache.has(source)) {
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return {
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url: source,
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map: fs.readFileSync(sourceMapCache.get(source), 'utf8')
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};
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}
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}
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});
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};
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exports.installPrecompilerHook = () => {
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installPrecompiler(filename => {
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const precompiled = opts.precompiled[filename];
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if (precompiled) {
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sourceMapCache.set(filename, path.join(cacheDir, `${precompiled}.js.map`));
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return fs.readFileSync(path.join(cacheDir, `${precompiled}.js`), 'utf8');
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}
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return null;
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});
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};
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exports.installDependencyTracking = (dependencies, testPath) => {
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Object.keys(require.extensions).forEach(ext => {
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const wrappedHandler = require.extensions[ext];
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require.extensions[ext] = (module, filename) => {
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if (filename !== testPath) {
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dependencies.push(filename);
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}
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wrappedHandler(module, filename);
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};
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});
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};
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