gulp-simple-typescript/dist/assets/tsParser.js

This is a simple typescript parser

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.tsParser = void 0;
const path_1 = require("path");
const typescript_1 = require("typescript");
const configManager_1 = require("./configManager");
const make_replacements_1 = __importDefault(require("replace-in-file/lib/helpers/make-replacements"));
const stream_1 = require("stream");
var compilerOptions;
function replaceString(file) {
    return (match) => {
        let replacePath = compilerOptions.paths[match][0];
        replacePath = path_1.relative(path_1.dirname(file.path), path_1.resolve(file.cwd, replacePath));
        const prefix = /\.|\//.test(replacePath.charAt(0)) ? '' : './';
        return `${prefix}${replacePath}`;
    };
}
function tsParser(file, tsConfig) {
    compilerOptions = configManager_1.getConfig();
    const replaceOption = {
        from: Object.keys(compilerOptions.paths).map(alias => new RegExp(`(?<=(require *\\(|import *\\(|from *)['"])${alias}(?=['"/])`, 'g')),
        to: replaceString(file)
    };
    const [, result] = make_replacements_1.default(file.contents.toString(), replaceOption.from, replaceOption.to, file.path, false);
    const { outputText: javascript } = typescript_1.transpileModule(result, {
        compilerOptions: tsConfig,
        reportDiagnostics: true
    });
    file.contents = stream_1.Readable.from(javascript);
    file.extname = '.js';
    return file;
}
exports.tsParser = tsParser;