react-native/jest/hasteImpl.js

82 lines
1.9 KiB
JavaScript

/**
* Copyright (c) 2014-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @flow
*/
'use strict';
const path = require('path');
const ROOTS = [
path.resolve(__dirname, '..') + path.sep,
path.resolve(__dirname, '../../react-native-windows') + path.sep,
];
const BLACKLISTED_PATTERNS /*: Array<RegExp> */ = [
/.*[\\\/]__(mocks|tests)__[\\\/].*/,
/^Libraries[\\\/]Animated[\\\/]src[\\\/]polyfills[\\\/].*/,
/^Libraries[\\\/]Renderer[\\\/]fb[\\\/].*/,
];
const WHITELISTED_PREFIXES /*: Array<string> */ = [
'IntegrationTests',
'Libraries',
'ReactAndroid',
'RNTester',
];
const NAME_REDUCERS /*: Array<[RegExp, string]> */ = [
// extract basename
[/^(?:.*[\\\/])?([a-zA-Z0-9$_.-]+)$/, '$1'],
// strip .js/.js.flow suffix
[/^(.*)\.js(\.flow)?$/, '$1'],
// strip .android/.ios/.native/.web suffix
[/^(.*)\.(android|ios|native|web|windows)$/, '$1'],
];
const haste = {
/*
* @return {string|void} hasteName for module at filePath; or undefined if
* filePath is not a haste module
*/
getHasteName(
filePath /*: string */,
sourceCode /*: ?string */,
) /*: string | void */ {
if (!isHastePath(filePath)) {
return undefined;
}
const hasteName = NAME_REDUCERS.reduce(
(name, [pattern, replacement]) => name.replace(pattern, replacement),
filePath,
);
return hasteName;
},
};
function isHastePath(filePath /*: string */) /*: boolean */ {
if (!filePath.endsWith('.js') && !filePath.endsWith('.js.flow')) {
return false;
}
const root = ROOTS.find(r => filePath.startsWith(r));
if (!root) {
return false;
}
filePath = filePath.substr(root.length);
if (BLACKLISTED_PATTERNS.some(pattern => pattern.test(filePath))) {
return false;
}
return WHITELISTED_PREFIXES.some(prefix => filePath.startsWith(prefix));
}
module.exports = haste;