Browserify + Babelify Gulp task is not terminating, when Watchify is used
I've made a gulp task for browserify with babelify in my Angular project, which I'm developing in WebStorm. First of all, I should say, that this code does work perfectly .
My browserify bundle be like:
const appBundle = browserify({
entries: config.client.src.appModule, // main angular app file
debug: TRUE,
packageCache: {},
cache: {}
}).transform(babelify, {only: './src/client'}).on('log', gutil.log);
And my gulp.task be like:
gulp.task('browserify', ['jshint'], function () {
return appBundle.bundle()
.on('error', function (err) {
gutil.log('Browserify error: ' + gutil.colors.red(err.message));
})
.pipe(source('app.js')) // main dist file
.pipe(gulp.dest('./dist'));
});
The issue I can't understand at all:
My question was: Why is my gulp task not terminating after it is through with its job? I should always stop it manually by clicking square button in my WebStorm.
UPDATE 1
I've figured out that the problem is eliminated if I pass "browserify" bundle directly, without the variable appBundle . So the code turns to:
browserify({
entries: config.client.src.appModule, // main angular app file
debug: TRUE,
packageCache: {},
cache: {}
}).transform(babelify, {only: './src/client'}).on('log', gutil.log)
.bundle().on('error', function (err) {
gutil.log('Browserify error: ' + gutil.colors.red(err.message));
})
.pipe(source('app.js')) // main dist file
.pipe(gulp.dest('./dist'));
And it works! But the main hardship is that i'm using this appBundle in my watchify task, so I don't want to duplicate the bundle.
UPDATE 2
After a couple of hours I've figured out again, that's the issue was concerned with my watchify task. The hole code was like that:
const appBundle = browserify({
entries: config.client.src.appModule, // main js file
debug: TRUE,
packageCache: {},
cache: {}
}).transform(babelify, {only: './src/client'});
const b = watchify(appBundle);
function rebundle(bundler) {
return bundler
.bundle()
.on('error', function (err) {
gutil.log('Browserify error: ' + gutil.colors.red(err.message));
})
.pipe(source('app.js'))
.pipe(gulp.dest('./dist'));
}
gulp.task('watchify', function () {
rebundle(b);
b.on('update', function () {
rebundle(b)
});
b.on('log', gutil.log); // output build logs to terminal
});
gulp.task('browserify', ['jshint'], function () {
rebundle(appBundle);
});
And when I've put down declaration of the const b into my watchify task, everything everything has started to work properly.
But the final question is: WHY IT HAS STARTED TO WORK?
看到这个文件，我认为它会帮助你
/*
* Task Automation to make my life easier.
* Author: Jean-Pierre Sierens
* ===========================================================================
*/
// declarations, dependencies
// ----------------------------------------------------------------------------
var gulp = require('gulp');
var browserify = require('browserify');
var source = require('vinyl-source-stream');
var gutil = require('gulp-util');
var babelify = require('babelify');
var browserSync = require('browser-sync').create();
// Static server
gulp.task('serve', ['scripts'], function() {
browserSync.init({
server: "./"
});
gulp.watch(['./app/**/*.js'], ['scripts']);
gulp.watch('./index.html').on('change', browserSync.reload);
// gulp.watch("app/scss/*.scss", ['sass']);
// gulp.watch("app/*.html").on('change', browserSync.reload);
});
// External dependencies you do not want to rebundle while developing,
// but include in your application deployment
var dependencies = [
'react',
'react-dom'
];
// keep a count of the times a task refires
var scriptsCount = 0;
// Gulp tasks
// ----------------------------------------------------------------------------
gulp.task('scripts', function () {
bundleApp(false);
});
gulp.task('deploy', function (){
bundleApp(true);
});
gulp.task('watch', function () {
gulp.watch(['./app/*.js'], ['scripts']);
});
// When running 'gulp' on the terminal this task will fire.
// It will start watching for changes in every .js file.
// If there's a change, the task 'scripts' defined above will fire.
gulp.task('default', ['serve']);
// Private Functions
// ----------------------------------------------------------------------------
function bundleApp(isProduction) {
scriptsCount++;
// Browserify will bundle all our js files together in to one and will let
// us use modules in the front end.
var appBundler = browserify({
entries: './app/app.js',
debug: true
})
// If it's not for production, a separate vendors.js file will be created
// the first time gulp is run so that we don't have to rebundle things like
// react everytime there's a change in the js file
if (!isProduction && scriptsCount === 1){
// create vendors.js for dev environment.
browserify({
require: dependencies,
debug: true
})
.bundle()
.on('error', gutil.log)
.pipe(source('vendors.js'))
.pipe(gulp.dest('./web/js/'));
}
if (!isProduction){
// make the dependencies external so they dont get bundled by the
// app bundler. Dependencies are already bundled in vendor.js for
// development environments.
dependencies.forEach(function(dep){
appBundler.external(dep);
})
}
appBundler
// transform ES6 and JSX to ES5 with babelify
.transform("babelify", {presets: ["es2015", "react"]})
.bundle()
.on('error',gutil.log)
.pipe(source('bundle.js'))
.pipe(gulp.dest('./web/js/'))
.pipe(browserSync.stream());
}
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