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c6b96c0df7
Reviewed By: rafeca Differential Revision: D7652914 fbshipit-source-id: 5494305750e7616b5120169266c519f460ae7e6d
44 lines
1.0 KiB
JavaScript
44 lines
1.0 KiB
JavaScript
/**
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* Copyright (c) 2015-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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*/
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'use strict';
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const fs = new (require('metro-memory-fs'))();
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function setMockFilesystem(object) {
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fs.reset();
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const root = process.platform === 'win32' ? 'c:\\' : '/';
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mockDir(root, {...object});
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}
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function mockDir(dirPath, desc) {
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for (const entName in desc) {
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const ent = desc[entName];
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const entPath = require('path').join(dirPath, entName);
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if (typeof ent === 'string' || ent instanceof Buffer) {
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fs.writeFileSync(entPath, ent);
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continue;
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}
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if (typeof ent !== 'object') {
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throw new Error(require('util').format('invalid entity:', ent));
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}
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if (ent.SYMLINK != null) {
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fs.symlinkSync(ent.SYMLINK, entPath);
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continue;
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}
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fs.mkdirSync(entPath);
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mockDir(entPath, ent);
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}
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}
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fs.__setMockFilesystem = setMockFilesystem;
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fs.mock = {clear: () => fs.reset()};
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module.exports = fs;
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