93 lines
2.7 KiB
JavaScript
93 lines
2.7 KiB
JavaScript
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'use strict';
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Object.defineProperty(exports, '__esModule', {
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value: true
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});
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exports.default = createCacheKey;
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function _crypto() {
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const data = require('crypto');
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_crypto = function () {
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return data;
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};
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return data;
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}
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function _fs() {
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const data = require('fs');
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_fs = function () {
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return data;
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};
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return data;
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}
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function _path() {
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const data = require('path');
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_path = function () {
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return data;
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};
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return data;
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}
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/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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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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*/
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// eslint-disable-next-line no-restricted-imports
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// Should mirror `import('@jest/transform').TransformOptions`
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// Should mirror `import('@jest/transform').Transformer['getCacheKey']`
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const {NODE_ENV, BABEL_ENV} = process.env;
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function getGlobalCacheKey(files, values, length) {
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return [
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NODE_ENV,
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BABEL_ENV,
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...values,
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...files.map(file => (0, _fs().readFileSync)(file))
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]
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.reduce(
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(hash, chunk) => hash.update('\0', 'utf8').update(chunk || ''),
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(0, _crypto().createHash)('sha1')
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)
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.digest('hex')
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.substring(0, length);
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}
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function getCacheKeyFunction(globalCacheKey, length) {
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return (sourceText, sourcePath, configString, options) => {
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// Jest 27 passes a single options bag which contains `configString` rather than as a separate argument.
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// We can hide that API difference, though, so this module is usable for both jest@<27 and jest@>=27
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const inferredOptions = options || configString;
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const {config, instrument} = inferredOptions;
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return (0, _crypto().createHash)('sha1')
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.update(globalCacheKey)
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.update('\0', 'utf8')
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.update(sourceText)
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.update('\0', 'utf8')
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.update(
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config.rootDir ? (0, _path().relative)(config.rootDir, sourcePath) : ''
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)
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.update('\0', 'utf8')
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.update(instrument ? 'instrument' : '')
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.digest('hex')
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.substring(0, length);
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};
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}
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/**
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* Returns a function that can be used to generate cache keys based on source code of provided files and provided values.
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*
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* @param files - Array of absolute paths to files whose code should be accounted for when generating cache key
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* @param values - Array of string values that should be accounted for when generating cache key
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* @param length - Length of the resulting key. The default is `32`, or `16` on Windows.
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* @returns A function that can be used to generate cache keys.
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*/
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function createCacheKey(
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files = [],
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values = [],
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length = process.platform === 'win32' ? 16 : 32
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) {
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return getCacheKeyFunction(getGlobalCacheKey(files, values, length), length);
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}
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