gulpfile.js

const {series, parallel, src, dest} = require('gulp');
const concat = require('gulp-concat')
const uglify = require('gulp-terser')
const rename = require('gulp-rename');
const shell = require('gulp-shell');
const del = require('del');
const jsdoc = require('gulp-jsdoc3');

coresrc = [
  '3Dmol/3dmol.js',
  '3Dmol/WebGL/math.js',
  '3Dmol/WebGL/shapes.js',
  '3Dmol/WebGL/core.js',
  '3Dmol/WebGL/**.js',
  '3Dmol/**.js',
  '!3Dmol/SurfaceWorker.js',
  '3Dmol/SurfaceWorker.js',
];
extsrc = [
  'js/disable_amd.js',
  'js/mmtf.js',
  'node_modules/pako/dist/pako.js',
  'node_modules/netcdfjs/dist/netcdfjs.js',
  'node_modules/upng-js/UPNG.js',
];
uisrc = [
  '3Dmol/ui/ui.js',
  '3Dmol/ui/state.js',
  '3Dmol/ui/icon.js',
  '3Dmol/ui/form.js',
  '3Dmol/ui/defaultValues.js',
];
jqsrc = ['node_modules/jquery/dist/jquery.js'];

function clean(cb) {
  del('build/*.js');
  del(['doc/*']);
  cb();
}

function doc(cb) {
  var config = require('./jsdoc.conf.json');
  return src(['3Dmol/*.js', '3Dmol/ui/*', 'doc.md'], {read: false}).pipe(jsdoc(config, cb));
}

function domin(srcs, name) {
  return src(srcs)
    .pipe(concat(name + '.js'))
    .pipe(dest('build'))
    .pipe(rename(name + '-min.js'))
    .pipe(
      uglify().on('error', function (e) {
        console.log(e);
      })
    )
    .pipe(dest('build'));
}

function minify() {
  return domin(jqsrc.concat(extsrc).concat(coresrc).concat(uisrc), '3Dmol');
}

function minify_nojquery() {
  return domin(extsrc.concat(coresrc).concat(uisrc), '3Dmol-nojquery');
}

function tests(cb) {
  src('tests/auto/generate_tests.py', {read: false}).pipe(shell('python3 <%= file.path %>'));
  cb();
}

function build_quick() {
  //nomin
  return src(jqsrc.concat(extsrc).concat(coresrc).concat(uisrc))
    .pipe(concat('3Dmol.js'))
    .pipe(dest('build'));
}
exports.build = parallel(tests, minify, minify_nojquery);
exports.default = series(clean, parallel(exports.build, doc));
exports.build_quick = parallel(build_quick, tests);
exports.clean = clean;
exports.doc = doc;