const watchify = require('watchify') const browserify = require('browserify') const envify = require('envify/custom') const disc = require('disc') const gulp = require('gulp') const source = require('vinyl-source-stream') const buffer = require('vinyl-buffer') const gutil = require('gulp-util') const watch = require('gulp-watch') const sourcemaps = require('gulp-sourcemaps') const jsoneditor = require('gulp-json-editor') const zip = require('gulp-zip') const assign = require('lodash.assign') const livereload = require('gulp-livereload') const del = require('del') const fs = require('fs') const path = require('path') const manifest = require('./app/manifest.json') const mkdirp = require('mkdirp') const sass = require('gulp-sass') const autoprefixer = require('gulp-autoprefixer') const gulpStylelint = require('gulp-stylelint') const stylefmt = require('gulp-stylefmt') const uglify = require('gulp-uglify-es').default const pify = require('pify') const gulpMultiProcess = require('gulp-multi-process') const endOfStream = pify(require('end-of-stream')) function gulpParallel (...args) { return function spawnGulpChildProcess (cb) { return gulpMultiProcess(args, cb, true) } } const browserPlatforms = [ 'firefox', 'chrome', 'edge', 'opera', ] const commonPlatforms = [ // browser webapp 'mascara', // browser extensions ...browserPlatforms, ] // browser reload gulp.task('dev:reload', function () { livereload.listen({ port: 35729, }) }) // copy universal const copyTaskNames = [] const copyDevTaskNames = [] createCopyTasks('locales', { source: './app/_locales/', destinations: commonPlatforms.map(platform => `./dist/${platform}/_locales`), }) createCopyTasks('images', { source: './app/images/', destinations: commonPlatforms.map(platform => `./dist/${platform}/images`), }) createCopyTasks('contractImages', { source: './node_modules/eth-contract-metadata/images/', destinations: commonPlatforms.map(platform => `./dist/${platform}/images/contract`), }) createCopyTasks('fonts', { source: './app/fonts/', destinations: commonPlatforms.map(platform => `./dist/${platform}/fonts`), }) createCopyTasks('vendor', { source: './app/vendor/', destinations: commonPlatforms.map(platform => `./dist/${platform}/vendor`), }) createCopyTasks('reload', { devOnly: true, source: './app/scripts/', pattern: '/chromereload.js', destinations: commonPlatforms.map(platform => `./dist/${platform}`), }) createCopyTasks('html', { source: './app/', pattern: '/*.html', destinations: commonPlatforms.map(platform => `./dist/${platform}`), }) // copy extension createCopyTasks('manifest', { source: './app/', pattern: '/*.json', destinations: browserPlatforms.map(platform => `./dist/${platform}`), }) // copy mascara createCopyTasks('html:mascara', { source: './mascara/', pattern: 'proxy/index.html', destinations: [`./dist/mascara/`], }) function createCopyTasks (label, opts) { if (!opts.devOnly) { const copyTaskName = `copy:${label}` copyTask(copyTaskName, opts) copyTaskNames.push(copyTaskName) } const copyDevTaskName = `dev:copy:${label}` copyTask(copyDevTaskName, Object.assign({ devMode: true }, opts)) copyDevTaskNames.push(copyDevTaskName) } function copyTask (taskName, opts) { const source = opts.source const destination = opts.destination const destinations = opts.destinations || [destination] const pattern = opts.pattern || '/**/*' const devMode = opts.devMode return gulp.task(taskName, function () { if (devMode) { watch(source + pattern, (event) => { livereload.changed(event.path) performCopy() }) } return performCopy() }) function performCopy () { // stream from source let stream = gulp.src(source + pattern, { base: source }) // copy to destinations destinations.forEach(function (destination) { stream = stream.pipe(gulp.dest(destination)) }) return stream } } // manifest tinkering gulp.task('manifest:chrome', function () { return gulp.src('./dist/chrome/manifest.json') .pipe(jsoneditor(function (json) { delete json.applications return json })) .pipe(gulp.dest('./dist/chrome', { overwrite: true })) }) gulp.task('manifest:opera', function () { return gulp.src('./dist/opera/manifest.json') .pipe(jsoneditor(function (json) { json.permissions = [ 'storage', 'tabs', 'clipboardWrite', 'clipboardRead', 'http://localhost:8545/', ] return json })) .pipe(gulp.dest('./dist/opera', { overwrite: true })) }) gulp.task('manifest:production', function () { return gulp.src([ './dist/firefox/manifest.json', './dist/chrome/manifest.json', './dist/edge/manifest.json', './dist/opera/manifest.json', ], {base: './dist/'}) // Exclude chromereload script in production: .pipe(jsoneditor(function (json) { json.background.scripts = json.background.scripts.filter((script) => { return !script.includes('chromereload') }) return json })) .pipe(gulp.dest('./dist/', { overwrite: true })) }) gulp.task('copy', gulp.series( gulp.parallel(...copyTaskNames), 'manifest:production', 'manifest:chrome', 'manifest:opera' ) ) gulp.task('dev:copy', gulp.series( gulp.parallel(...copyDevTaskNames), 'manifest:chrome', 'manifest:opera' ) ) // scss compilation and autoprefixing tasks gulp.task('build:scss', createScssBuildTask({ src: 'ui/app/css/index.scss', dest: 'ui/app/css/output', devMode: false, })) gulp.task('dev:scss', createScssBuildTask({ src: 'ui/app/css/index.scss', dest: 'ui/app/css/output', devMode: true, pattern: 'ui/app/**/*.scss', })) function createScssBuildTask ({ src, dest, devMode, pattern }) { return function () { if (devMode) { watch(pattern, async (event) => { const stream = buildScss() await endOfStream(stream) livereload.changed(event.path) }) } return buildScss() } function buildScss () { return gulp.src(src) .pipe(sourcemaps.init()) .pipe(sass().on('error', sass.logError)) .pipe(sourcemaps.write()) .pipe(autoprefixer()) .pipe(gulp.dest(dest)) } } gulp.task('lint-scss', function () { return gulp .src('ui/app/css/itcss/**/*.scss') .pipe(gulpStylelint({ reporters: [ { formatter: 'string', console: true }, ], fix: true, })) }) gulp.task('fmt-scss', function () { return gulp.src('ui/app/css/itcss/**/*.scss') .pipe(stylefmt()) .pipe(gulp.dest('ui/app/css/itcss')) }) // build js const buildJsFiles = [ 'inpage', 'contentscript', 'background', 'ui', ] // bundle tasks createTasksForBuildJsExtension({ buildJsFiles, taskPrefix: 'dev:extension:js', devMode: true }) createTasksForBuildJsExtension({ buildJsFiles, taskPrefix: 'build:extension:js' }) createTasksForBuildJsMascara({ taskPrefix: 'build:mascara:js' }) createTasksForBuildJsMascara({ taskPrefix: 'dev:mascara:js', devMode: true }) function createTasksForBuildJsExtension ({ buildJsFiles, taskPrefix, devMode, bundleTaskOpts = {} }) { // inpage must be built before all other scripts: const rootDir = './app/scripts' const nonInpageFiles = buildJsFiles.filter(file => file !== 'inpage') const buildPhase1 = ['inpage'] const buildPhase2 = nonInpageFiles const destinations = browserPlatforms.map(platform => `./dist/${platform}`) bundleTaskOpts = Object.assign({ buildSourceMaps: true, sourceMapDir: devMode ? './' : '../sourcemaps', minifyBuild: !devMode, buildWithFullPaths: devMode, watch: devMode, devMode, }, bundleTaskOpts) createTasksForBuildJs({ rootDir, taskPrefix, bundleTaskOpts, destinations, buildPhase1, buildPhase2 }) } function createTasksForBuildJsMascara ({ taskPrefix, devMode, bundleTaskOpts = {} }) { // inpage must be built before all other scripts: const rootDir = './mascara/src/' const buildPhase1 = ['ui', 'proxy', 'background', 'metamascara'] const destinations = ['./dist/mascara'] bundleTaskOpts = Object.assign({ buildSourceMaps: true, sourceMapDir: './', minifyBuild: !devMode, buildWithFullPaths: devMode, watch: devMode, devMode, }, bundleTaskOpts) createTasksForBuildJs({ rootDir, taskPrefix, bundleTaskOpts, destinations, buildPhase1 }) } function createTasksForBuildJs ({ rootDir, taskPrefix, bundleTaskOpts, destinations, buildPhase1 = [], buildPhase2 = [] }) { // bundle task for each file const jsFiles = [].concat(buildPhase1, buildPhase2) jsFiles.forEach((jsFile) => { gulp.task(`${taskPrefix}:${jsFile}`, bundleTask(Object.assign({ label: jsFile, filename: `${jsFile}.js`, filepath: `${rootDir}/${jsFile}.js`, destinations, }, bundleTaskOpts))) }) // compose into larger task const subtasks = [] subtasks.push(gulp.parallel(buildPhase1.map(file => `${taskPrefix}:${file}`))) if (buildPhase2.length) subtasks.push(gulp.parallel(buildPhase2.map(file => `${taskPrefix}:${file}`))) gulp.task(taskPrefix, gulp.series(subtasks)) } // disc bundle analyzer tasks buildJsFiles.forEach((jsFile) => { gulp.task(`disc:${jsFile}`, discTask({ label: jsFile, filename: `${jsFile}.js` })) }) gulp.task('disc', gulp.parallel(buildJsFiles.map(jsFile => `disc:${jsFile}`))) // clean dist gulp.task('clean', function clean () { return del(['./dist/*']) }) // zip tasks for distribution gulp.task('zip:chrome', zipTask('chrome')) gulp.task('zip:firefox', zipTask('firefox')) gulp.task('zip:edge', zipTask('edge')) gulp.task('zip:opera', zipTask('opera')) gulp.task('zip', gulp.parallel('zip:chrome', 'zip:firefox', 'zip:edge', 'zip:opera')) // high level tasks gulp.task('dev', gulp.series( 'clean', 'dev:scss', gulp.parallel( 'dev:extension:js', 'dev:mascara:js', 'dev:copy', 'dev:reload' ) ) ) gulp.task('dev:extension', gulp.series( 'clean', 'dev:scss', gulp.parallel( 'dev:extension:js', 'dev:copy', 'dev:reload' ) ) ) gulp.task('dev:mascara', gulp.series( 'clean', 'dev:scss', gulp.parallel( 'dev:mascara:js', 'dev:copy', 'dev:reload' ) ) ) gulp.task('build', gulp.series( 'clean', 'build:scss', gulpParallel( 'build:extension:js', 'build:mascara:js', 'copy' ) ) ) gulp.task('build:extension', gulp.series( 'clean', 'build:scss', gulp.parallel( 'build:extension:js', 'copy' ) ) ) gulp.task('build:mascara', gulp.series( 'clean', 'build:scss', gulp.parallel( 'build:mascara:js', 'copy' ) ) ) gulp.task('dist', gulp.series( 'build', 'zip' ) ) // task generators function zipTask (target) { return () => { return gulp.src(`dist/${target}/**`) .pipe(zip(`metamask-${target}-${manifest.version}.zip`)) .pipe(gulp.dest('builds')) } } function generateBundler (opts, performBundle) { const browserifyOpts = assign({}, watchify.args, { entries: [opts.filepath], plugin: 'browserify-derequire', debug: opts.buildSourceMaps, fullPaths: opts.buildWithFullPaths, }) let bundler = browserify(browserifyOpts) // inject variables into bundle bundler.transform(envify({ METAMASK_DEBUG: opts.devMode, NODE_ENV: opts.devMode ? 'development' : 'production', })) if (opts.watch) { bundler = watchify(bundler) // on any file update, re-runs the bundler bundler.on('update', async (ids) => { const stream = performBundle() await endOfStream(stream) livereload.changed(`${ids}`) }) } return bundler } function discTask (opts) { opts = Object.assign({ buildWithFullPaths: true, }, opts) const bundler = generateBundler(opts, performBundle) // output build logs to terminal bundler.on('log', gutil.log) return performBundle function performBundle () { // start "disc" build const discDir = path.join(__dirname, 'disc') mkdirp.sync(discDir) const discPath = path.join(discDir, `${opts.label}.html`) return ( bundler.bundle() .pipe(disc()) .pipe(fs.createWriteStream(discPath)) ) } } function bundleTask (opts) { const bundler = generateBundler(opts, performBundle) // output build logs to terminal bundler.on('log', gutil.log) return performBundle function performBundle () { let buildStream = bundler.bundle() // handle errors buildStream.on('error', (err) => { beep() if (opts.watch) { console.warn(err.stack) } else { throw err } }) // process bundles buildStream = buildStream // convert bundle stream to gulp vinyl stream .pipe(source(opts.filename)) // buffer file contents (?) .pipe(buffer()) // Initialize Source Maps if (opts.buildSourceMaps) { buildStream = buildStream // loads map from browserify file .pipe(sourcemaps.init({ loadMaps: true })) } // Minification if (opts.minifyBuild) { buildStream = buildStream .pipe(uglify({ mangle: { reserved: [ 'MetamaskInpageProvider' ], }, })) } // Finalize Source Maps (writes .map file) if (opts.buildSourceMaps) { buildStream = buildStream .pipe(sourcemaps.write(opts.sourceMapDir)) } // write completed bundles opts.destinations.forEach((dest) => { buildStream = buildStream.pipe(gulp.dest(dest)) }) return buildStream } } function beep () { process.stdout.write('\x07') }