angular-cn/integration/ngcc/mock-ngcc-version-marker.js

51 lines
1.9 KiB
JavaScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
/**
* **Usage:**
* ```sh
* node mock-ngcc-version-marker <entry-point> <mock-ngcc-version>
*
* # Example:
* # node mock-ngcc-version-marker @angular/material/button 3.0.0
* ```
*
* Ngcc marks entry-points as processed by adding marker properties in their `package.json`. It uses
* a version as a marker in order to be able to distinguish entry-points processed by a different
* ngcc version (e.g. an older version after an update) and perform the necessary clean-up.
*
* This script replaces the ngcc version marker in an entry-point's `package.json` to make it appear
* as if it were processed by a different version of ngcc. This allows testing the clean-up logic
* without the overhead of actually installing a different ngcc version, compiling the dependencies,
* then installing the current version and compiling again.
*/
const {writeFileSync} = require('fs');
const {basename} = require('path');
const entryPointName = process.argv[2];
const mockNgccVersion = process.argv[3];
const actualNgccVersion = require('@angular/compiler-cli/package.json').version;
if (!entryPointName || !mockNgccVersion) {
throw new Error(
'Missing required argument(s).\n' +
`Usage: node ${basename(__filename)} <entry-point> <mock-ngcc-version>\n`);
}
const entryPointPkgJsonPath = require.resolve(`${entryPointName}/package.json`);
const entryPointPkgJson = require(entryPointPkgJsonPath);
const processedMarkers = entryPointPkgJson.__processed_by_ivy_ngcc__;
Object.keys(processedMarkers).forEach(key => processedMarkers[key] = mockNgccVersion);
writeFileSync(entryPointPkgJsonPath, JSON.stringify(entryPointPkgJson, null, 2));
console.log(
`Successfully mocked ngcc version marker in '${entryPointName}': ` +
`${actualNgccVersion} --> ${mockNgccVersion}`);