@angular/material
Version:
Angular Material
47 lines • 6.1 kB
JavaScript
;
/**
* @license
* Copyright Google LLC 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
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.getPackageVersionFromPackageJson = exports.addPackageToPackageJson = void 0;
/**
* Sorts the keys of the given object.
* @returns A new object instance with sorted keys
*/
function sortObjectByKeys(obj) {
return Object.keys(obj).sort().reduce((result, key) => (result[key] = obj[key]) && result, {});
}
/** Adds a package to the package.json in the given host tree. */
function addPackageToPackageJson(host, pkg, version) {
if (host.exists('package.json')) {
const sourceText = host.read('package.json').toString('utf-8');
const json = JSON.parse(sourceText);
if (!json.dependencies) {
json.dependencies = {};
}
if (!json.dependencies[pkg]) {
json.dependencies[pkg] = version;
json.dependencies = sortObjectByKeys(json.dependencies);
}
host.overwrite('package.json', JSON.stringify(json, null, 2));
}
return host;
}
exports.addPackageToPackageJson = addPackageToPackageJson;
/** Gets the version of the specified package by looking at the package.json in the given tree. */
function getPackageVersionFromPackageJson(tree, name) {
if (!tree.exists('package.json')) {
return null;
}
const packageJson = JSON.parse(tree.read('package.json').toString('utf8'));
if (packageJson.dependencies && packageJson.dependencies[name]) {
return packageJson.dependencies[name];
}
return null;
}
exports.getPackageVersionFromPackageJson = getPackageVersionFromPackageJson;
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