ngx-unused-css/dist/src/helpers/unusedClassMapper.js

Detect unused CSS in angular components

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var fs_1 = (0, tslib_1.__importDefault)(require("fs"));
var findUnusedCss_1 = (0, tslib_1.__importDefault)(require("../main/findUnusedCss"));
/**
 * Returns array of classes/attributes not used in html
 *
 * @param cssPath - styling file path
 * @param htmlContent - html content to analyse
 * @param htmlPath - html file path
 * @returns Promise<([string[], string])>
 */
function unusedClassMapper(cssPath, htmlContent, htmlPath, config) {
    return (0, tslib_1.__awaiter)(this, void 0, void 0, function () {
        var classes;
        return (0, tslib_1.__generator)(this, function (_a) {
            switch (_a.label) {
                case 0:
                    try {
                        // Try to read styling file path in order to determine if file exist
                        fs_1.default.readFileSync(cssPath);
                    }
                    catch (error) {
                        throw new Error('Styling file for component ' + htmlPath + ' not found, skipping...');
                    }
                    return [4 /*yield*/, (0, findUnusedCss_1.default)(htmlContent, cssPath, config)];
                case 1:
                    classes = _a.sent();
                    return [2 /*return*/, [classes, htmlPath]];
            }
        });
    });
}
exports.default = unusedClassMapper;
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