gulpfile.js

const gulp = require('gulp');
const sourcemaps = require('gulp-sourcemaps');
const typedoc = require('gulp-typedoc');
const gulpClean = require('gulp-clean');
const terser = require('gulp-terser');
const eslint = require('gulp-eslint');
const pump = require('pump');
const ts = require('gulp-typescript');

const TO_CLEAN = ['dist', 'docs', '*.tgz'];
const SOURCE = 'src/**/*.ts';
const NAME = 'vk-chat-bot';
const DEST_FOLDER = 'dist';
const DOCS_FOLDER = './docs';
const TSCONFIG = 'tsconfig.json';
const ESLINTRC = '.eslintrc.json';

function clean(cb) {
    pump(
        [gulp.src(TO_CLEAN, { read: false, allowEmpty: true }), gulpClean()],
        cb
    );
}

function lint(cb) {
    pump(
        [
            gulp.src(SOURCE),
            eslint(ESLINTRC),
            eslint.format(),
            eslint.failAfterError(),
        ],
        cb
    );
}

function build(cb) {
    const tsProject = ts.createProject(TSCONFIG);
    let streams = pump([gulp.src(SOURCE), sourcemaps.init(), tsProject()]);
    pump([streams.dts, gulp.dest(DEST_FOLDER)]);
    pump(
        [
            streams.js,
            terser(),
            sourcemaps.write(),
            gulp.dest(DEST_FOLDER),
        ],
        cb
    );
}

function docs(cb) {
    pump(
        [
            gulp.src(SOURCE, { read: false }),
            typedoc({
                tsconfig: TSCONFIG,
                out: DOCS_FOLDER,
                name: NAME,
                ignoreCompilerErrors: false,
                listInvalidSymbolLinks: true,
                logger: text => console.log(text),
            }),
        ],
        cb
    );
}

exports.clean = clean;
exports.build = build;
exports.lint = lint;
exports.docs = docs;

exports.default = gulp.series(
    exports.clean,
    exports.build,
    exports.lint,
    exports.docs,
);