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03476a225e
Summary:
This pull request adds the ability for a platform developer to provide a `"haste"` key under the `"rnpm"` key in their `package.json` which allows the packager to pick up that platform's javascript files. The intent is to remove the need to have custom platforms hardcoded in. This is inspired by the `"jest": { "haste": {} }` key used by jest.
For example, React Native Dom would have an entry like:
```json
{
"rnpm": {
"haste": {
"providesModuleNodeModules": [
"react-native-dom"
],
"platforms": [
"dom"
]
}
}
}
```
Support for more keys (path blacklists perhaps?) could be added in the future.
This succeeds #20662, as per a discussion I had with matthargett.
I've got an open discussion over here as well: https://github.com/react-native-community/discussions-and-proposals/issues/21
Pull Request resolved: https://github.com/facebook/react-native/pull/20825
Differential Revision: D9596429
Pulled By: hramos
fbshipit-source-id: a02f0da0bea8870bdc45d55e23da8ccbc36249f2
98 lines
2.4 KiB
JavaScript
98 lines
2.4 KiB
JavaScript
/**
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* Copyright (c) 2014-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @format
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* @flow
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*/
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'use strict';
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const path = require('path');
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const findPlugins = require('../local-cli/core/findPlugins');
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const plugins = findPlugins([path.resolve(__dirname, '../../../')]);
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// Detect out-of-tree platforms and add them to the whitelists
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const pluginRoots /*: Array<
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string,
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> */ = plugins.haste.providesModuleNodeModules.map(
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name => path.resolve(__dirname, '../../', name) + path.sep,
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);
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const pluginNameReducers /*: Array<
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[RegExp, string],
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> */ = plugins.haste.platforms.map(name => [
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new RegExp(`^(.*)\.(${name})$`),
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'$1',
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]);
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const ROOTS = [path.resolve(__dirname, '..') + path.sep, ...pluginRoots];
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const BLACKLISTED_PATTERNS /*: Array<RegExp> */ = [
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/.*[\\\/]__(mocks|tests)__[\\\/].*/,
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/^Libraries[\\\/]Animated[\\\/]src[\\\/]polyfills[\\\/].*/,
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/^Libraries[\\\/]Renderer[\\\/]fb[\\\/].*/,
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];
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const WHITELISTED_PREFIXES /*: Array<string> */ = [
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'IntegrationTests',
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'Libraries',
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'ReactAndroid',
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'RNTester',
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];
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const NAME_REDUCERS /*: Array<[RegExp, string]> */ = [
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// extract basename
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[/^(?:.*[\\\/])?([a-zA-Z0-9$_.-]+)$/, '$1'],
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// strip .js/.js.flow suffix
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[/^(.*)\.js(\.flow)?$/, '$1'],
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// strip platform suffix
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[/^(.*)\.(android|ios|native)$/, '$1'],
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// strip plugin platform suffixes
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...pluginNameReducers,
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];
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const haste = {
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/*
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* @return {string|void} hasteName for module at filePath; or undefined if
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* filePath is not a haste module
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*/
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getHasteName(
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filePath /*: string */,
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sourceCode /*: ?string */,
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) /*: string | void */ {
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if (!isHastePath(filePath)) {
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return undefined;
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}
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const hasteName = NAME_REDUCERS.reduce(
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(name, [pattern, replacement]) => name.replace(pattern, replacement),
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filePath,
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);
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return hasteName;
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},
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};
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function isHastePath(filePath /*: string */) /*: boolean */ {
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if (!filePath.endsWith('.js') && !filePath.endsWith('.js.flow')) {
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return false;
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}
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const root = ROOTS.find(r => filePath.startsWith(r));
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if (!root) {
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return false;
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}
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filePath = filePath.substr(root.length);
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if (BLACKLISTED_PATTERNS.some(pattern => pattern.test(filePath))) {
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return false;
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}
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return WHITELISTED_PREFIXES.some(prefix => filePath.startsWith(prefix));
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}
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module.exports = haste;
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