ng-packagr/lib/flatten/uglify.js

Compile and package a TypeScript library to Angular Package Format

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.minifyJsFile = void 0;
const terser_1 = require("terser");
const fs_extra_1 = require("fs-extra");
const path_1 = require("path");
const log_1 = require("../utils/log");
function minifyJsFile(inputPath, outputPath) {
    return __awaiter(this, void 0, void 0, function* () {
        log_1.debug(`minifyJsFile: ${inputPath}`);
        const sourcemapOut = `${outputPath}.map`;
        const [inputFileBuffer, inputSourceMapBuffer] = yield Promise.all([
            fs_extra_1.readFile(inputPath),
            fs_extra_1.readFile(`${inputPath}.map`),
        ]);
        const result = yield terser_1.minify(inputFileBuffer.toString(), {
            sourceMap: {
                includeSources: true,
                content: JSON.parse(inputSourceMapBuffer.toString()),
                url: path_1.basename(sourcemapOut),
            },
            parse: {
                ecma: 5,
                bare_returns: true,
            },
            format: {
                comments: 'some',
            },
        });
        yield Promise.all([fs_extra_1.writeFile(outputPath, result.code), fs_extra_1.writeFile(sourcemapOut, result.map)]);
        return;
    });
}
exports.minifyJsFile = minifyJsFile;
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