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gulpfile.babel.js
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gulpfile.babel.js
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import gulp from 'gulp';
import loadPlugins from 'gulp-load-plugins';
import del from 'del';
import glob from 'glob';
import path from 'path';
import webpack from 'webpack';
import webpackStream from 'webpack-stream';
import source from 'vinyl-source-stream';
import { Instrumenter } from 'isparta';
import manifest from './package.json';
// TODO: Re-implement build process to utilise proper caching
// TODO: Consider bundling three.js within the final build, or at least having
// a different build step for an all-in-one file
// Load all of our Gulp plugins
const $ = loadPlugins();
// Gather the library data from `package.json`
const config = manifest.babelBoilerplateOptions;
const mainFile = manifest.main;
const destinationFolder = path.dirname(mainFile);
const exportFileName = path.basename(mainFile, path.extname(mainFile));
// Remove a directory
function _clean(dir, done) {
del([dir], done);
}
function cleanDist(done) {
_clean(destinationFolder, done);
}
function cleanTmp(done) {
_clean('tmp', done);
}
function onError() {
$.util.beep();
}
// Lint a set of files
function lint(files) {
return gulp.src(files)
.pipe($.plumber())
.pipe($.eslint())
.pipe($.eslint.format())
.pipe($.eslint.failOnError())
.pipe($.jscs())
.pipe($.jscs.reporter('fail'))
.on('error', onError);
}
function lintSrc() {
return lint('src/**/*.js');
}
function lintTest() {
return lint('test/**/*.js');
}
function lintGulpfile() {
return lint('gulpfile.babel.js');
}
function build() {
return gulp.src(path.join('src', config.entryFileName + '.js'))
.pipe($.plumber())
.pipe(webpackStream({
output: {
filename: exportFileName + '.js',
libraryTarget: 'umd',
library: config.mainVarName
},
externals: {
// Proxy the global THREE variable to require('three')
'three': 'THREE',
// Proxy the global THREE variable to require('TweenLite')
'TweenLite': 'TweenLite',
// Proxy the global THREE variable to require('TweenMax')
'TweenMax': 'TweenMax',
// Proxy the global THREE variable to require('TimelineLite')
'TimelineLite': 'TimelineLite',
// Proxy the global THREE variable to require('TimelineMax')
'TimelineMax': 'TimelineMax',
// Proxy the global proj4 variable to require('proj4')
'proj4': 'proj4'
},
module: {
loaders: [
{ test: /\.js$/, exclude: /node_modules/, loader: 'babel-loader' }
]
},
devtool: 'source-map'
}))
.pipe(gulp.dest(destinationFolder))
.pipe($.filter(['*', '!**/*.js.map']))
.pipe($.rename(exportFileName + '.min.js'))
.pipe($.sourcemaps.init({ loadMaps: true }))
// Don't mangle class names so we can use them in the console
// jscs:disable
// .pipe($.uglify({ mangle: { keep_fnames: true }}))
// jscs:enable
// Using the mangle option above breaks the sourcemap for some reason
.pipe($.uglify())
.pipe($.sourcemaps.write('./'))
.pipe(gulp.dest(destinationFolder))
.pipe($.livereload());
}
function moveCSS() {
return gulp.src(path.join('src', config.entryFileName + '.css'))
.pipe(gulp.dest(destinationFolder));
}
function _mocha() {
return gulp.src(['test/setup/node.js', 'test/unit/**/*.js'], {read: false})
.pipe($.mocha({
reporter: 'dot',
globals: config.mochaGlobals,
ignoreLeaks: false
}));
}
function _registerBabel() {
require('babel-core/register');
}
function test() {
_registerBabel();
return _mocha();
}
function coverage(done) {
_registerBabel();
gulp.src(['src/**/*.js'])
.pipe($.istanbul({ instrumenter: Instrumenter }))
.pipe($.istanbul.hookRequire())
.on('finish', () => {
return test()
.pipe($.istanbul.writeReports())
.on('end', done);
});
}
const watchFiles = ['src/**/*', 'test/**/*', 'package.json', '**/.eslintrc', '.jscsrc'];
// Run the headless unit tests as you make changes.
function watch() {
$.livereload.listen();
gulp.watch(watchFiles, ['build']);
// gulp.watch(watchFiles, ['test']);
}
function testBrowser() {
// Our testing bundle is made up of our unit tests, which
// should individually load up pieces of our application.
// We also include the browser setup file.
const testFiles = glob.sync('./test/unit/**/*.js');
const allFiles = ['./test/setup/browser.js'].concat(testFiles);
// Lets us differentiate between the first build and subsequent builds
var firstBuild = true;
// This empty stream might seem like a hack, but we need to specify all of our files through
// the `entry` option of webpack. Otherwise, it ignores whatever file(s) are placed in here.
return gulp.src('')
.pipe($.plumber())
.pipe(webpackStream({
watch: true,
entry: allFiles,
output: {
filename: '__spec-build.js'
},
externals: {
// Proxy the global THREE variable to require('three')
'three': 'THREE',
// Proxy the global THREE variable to require('TweenLite')
'TweenLite': 'TweenLite',
// Proxy the global THREE variable to require('TweenMax')
'TweenMax': 'TweenMax',
// Proxy the global THREE variable to require('TimelineLite')
'TimelineLite': 'TimelineLite',
// Proxy the global THREE variable to require('TimelineMax')
'TimelineMax': 'TimelineMax',
// Proxy the global proj4 variable to require('proj4')
'proj4': 'proj4'
},
module: {
loaders: [
// This is what allows us to author in future JavaScript
{ test: /\.js$/, exclude: /node_modules/, loader: 'babel-loader' },
// This allows the test setup scripts to load `package.json`
{ test: /\.json$/, exclude: /node_modules/, loader: 'json-loader' }
]
},
plugins: [
// By default, webpack does `n=>n` compilation with entry files. This concatenates
// them into a single chunk.
new webpack.optimize.LimitChunkCountPlugin({ maxChunks: 1 })
],
devtool: 'inline-source-map'
}, null, function() {
if (firstBuild) {
$.livereload.listen({port: 35729, host: 'localhost', start: true});
var watcher = gulp.watch(watchFiles, ['lint']);
} else {
$.livereload.reload('./tmp/__spec-build.js');
}
firstBuild = false;
}))
.pipe(gulp.dest('./tmp'));
}
// Remove the built files
gulp.task('clean', cleanDist);
// Remove our temporary files
gulp.task('clean-tmp', cleanTmp);
// Lint our source code
gulp.task('lint-src', lintSrc);
// Lint our test code
gulp.task('lint-test', lintTest);
// Lint this file
gulp.task('lint-gulpfile', lintGulpfile);
// Lint everything
gulp.task('lint', ['lint-src', 'lint-test', 'lint-gulpfile']);
// Move CSS
gulp.task('move-css', ['clean'], moveCSS);
// Build two versions of the library
gulp.task('build', ['lint', 'move-css'], build);
// Lint and run our tests
gulp.task('test', ['lint'], test);
// Set up coverage and run tests
gulp.task('coverage', ['lint'], coverage);
// Set up a livereload environment for our spec runner `test/runner.html`
gulp.task('test-browser', ['lint', 'clean-tmp'], testBrowser);
// Run the headless unit tests as you make changes.
gulp.task('watch', watch);
// An alias of test
gulp.task('default', ['test']);