app/node_modules/@angular/cdk/schematics/ng-update/find-stylesheets.js

"use strict";
/**
 * @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.dev/license
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.findStylesheetFiles = findStylesheetFiles;
const core_1 = require("@angular-devkit/core");
/** Regular expression that matches stylesheet paths */
const STYLESHEET_REGEX = /.*\.(css|scss)$/;
/**
 * Finds stylesheets in the given directory from within the specified tree.
 * @param tree Devkit tree where stylesheet files can be found in.
 * @param startDirectory Optional start directory where stylesheets should be searched in.
 *   This can be useful if only stylesheets within a given folder are relevant (to avoid
 *   unnecessary iterations).
 */
function findStylesheetFiles(tree, startDirectory = '/') {
    const result = [];
    const visitDir = (dirPath) => {
        const { subfiles, subdirs } = tree.getDir(dirPath);
        subfiles.forEach(fileName => {
            if (STYLESHEET_REGEX.test(fileName)) {
                result.push((0, core_1.join)(dirPath, fileName));
            }
        });
        // Visit directories within the current directory to find other stylesheets.
        subdirs.forEach(fragment => {
            // Do not visit directories or files inside node modules or `dist/` folders.
            if (fragment !== 'node_modules' && fragment !== 'dist') {
                visitDir((0, core_1.join)(dirPath, fragment));
            }
        });
    };
    visitDir(startDirectory);
    return result;
}
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