I use "gulp build" to generate a single .js file from a set of .js files (angular code).
It is creating file like "app-randomstring.js" but I want it to be "app.js", how to do that ?
gulpfile.js:
/**
* Welcome to your gulpfile!
* The gulp tasks are splitted in several files in the gulp directory
* because putting all here was really too long
*/
'use strict';
var gulp = require('gulp');
var wrench = require('wrench');
/**
* This will load all js or coffee files in the gulp directory
* in order to load all gulp tasks
*/
wrench.readdirSyncRecursive('./gulp').filter(function(file) {
return (/\.(js|coffee)$/i).test(file);
}).map(function(file) {
require('./gulp/' + file);
});
/**
* Default task clean temporaries directories and launch the
* main optimization build task
*/
gulp.task('default', ['clean'], function () {
gulp.start('build');
});
I use something like this:
var concat = require('gulp-concat'),
uglify = require('gulp-uglify'),
gulp.task('build-js', [], function () {
jslibs = ['path/to/file.js', 'path/to/file2.js'];
return gulp.src(jslibs)
.pipe(concat('all.min.js')) // the name you want
.pipe(uglify({mangle: false}))
.pipe(gulp.dest('output/path/js/'))
});
Related
I am a beginner to Javascript and Gulp. Am learning this based on a udemy course in which Gulp 3 is being used, and I've been looking at docs to convert the code to Gulp 4. It's been fun so far since I am learning more when I am doing the conversions myself, but am stuck on this one. Wonder if you guys can offer some advice.
Issue: When I split the gulpfile.js into separate files to organise my files better, it starts throwing errors. Code below.
styles.js
var gulp = require('gulp'),
postcss = require('gulp-postcss'),
autoprefixer = require('autoprefixer'),
cssvars = require('postcss-simple-vars'),
nested = require('postcss-nested'),
cssImport = require('postcss-import');
function styles(cb) {
return gulp.src('./app/assets/styles/styles.css')
.pipe(postcss([cssImport, cssvars, nested, autoprefixer]))
.pipe(gulp.dest('./app/temp/styles'));
cb();
}
exports.styles = styles;
watch.js
var gulp = require('gulp'),
browserSync = require('browser-sync').create();
function cssInject(cb) {
return gulp.src('./app/temp/styles/styles.css')
.pipe(browserSync.stream());
cb();
}
function browserSyncReload(cb) {
browserSync.reload();
cb();
}
function watch(cb) {
browserSync.init({
notify: false,
server: {
baseDir: "app"
}
});
watch('./app/index.html', browserSyncReload);
watch('./app/assets/styles/styles.css', gulp.series(cssInject, styles));
cb();
}
exports.browserSyncReload = browserSyncReload;
exports.watch = watch;
gulpfile.js
var stylesTasks = require('./gulp/tasks/styles.js'),
watchTasks = require('./gulp/tasks/watch.js');
exports.watch = watchTasks.watch;
exports.styles = stylesTasks.styles;
exports.browserSyncReload = watchTasks.browserSyncReload;
When I run "gulp watch", this is what I get.
error
$ gulp watch
[21:14:28] Using gulpfile ~/Projects/travel-site/gulpfile.js
[21:14:28] Starting 'watch'...
internal/async_hooks.js:195
function emitInitNative(asyncId, type, triggerAsyncId, resource) { ^
RangeError: Maximum call stack size exceeded
(Use `node --trace-uncaught ...` to show where the exception was thrown)
I found another post with almost identical code, but with a different error - which happened to be one of the errors i was getting earlier as well, and have followed the solution mentioned in that post - and that's when I get this error. Here's the link to the post.
Any help is much appreciated. Thanks for your time.
I have a full article that shows many how to regarding going from gulp3 to gulp4, I think you are going to find everything you need there
But basically, I think you need to take a look at these modules :
gulp-task-loader-recursive
gulp4-run-sequence
require-dir
Then, from a gulp.js perspective, you can end up with something like this :
// gulpfile.js
global.config = require('./gulp/config/config.json');
require('events').EventEmitter.prototype._maxListeners = 1000;
require('require-dir')('./gulp/tasks/styles');
require('require-dir')('./gulp/tasks/watch');
//... etc ...
So you would be able to then create your styles task and export it :
var gulp = require('gulp'),
postcss = require('gulp-postcss'),
autoprefixer = require('autoprefixer'),
cssvars = require('postcss-simple-vars'),
nested = require('postcss-nested'),
cssImport = require('postcss-import');
function styles(cb) {
return gulp.src('./app/assets/styles/styles.css')
.pipe(postcss([cssImport, cssvars, nested, autoprefixer]))
.pipe(gulp.dest('./app/temp/styles'));
cb();
}
const stylesTask = task('styles', styles);
exports.stylesTask = stylesTask;
You can then validate its recognized by gulp :
gulp --tasks
If you correctly see your styles tasks, you should now be able to run your task by running :
gulp styles
Repeat those steps for the watch task.
Answering my own question feels wierd, but I found the solution after playing with it for couple of days. See below.
I needed to import styles into watch.js, and not gulpfile.js. That was my first mistake. To do this, I added the below line to watch.js
var styles = require('./styles').styles;
Then my gulpfile.js only needed two lines
gulpfile.js
var watchTask = require('./gulp/tasks/watch').watch;
exports.default = watchTask;
I also removed the variable gulp, instead created variables for src and dest. So, the rest of the code looked like below.
styles.js
var {src, dest} = require('gulp'),
postcss = require('gulp-postcss'),
autoprefixer = require('autoprefixer'),
cssvars = require('postcss-simple-vars'),
nested = require('postcss-nested'),
cssImport = require('postcss-import');
const styles = function (cb) {
return src('./app/assets/styles/styles.css')
.pipe(postcss([cssImport, cssvars, nested, autoprefixer]))
.pipe(dest('./app/temp/styles'));
cb();
}
exports.styles = styles;
watch.js
var styles = require('./styles').styles;
var {src, series, watch} = require('gulp'),
browserSync = require('browser-sync').create();
const cssInject = function (cb) {
return src('./app/temp/styles/styles.css')
.pipe(browserSync.stream());
cb();
}
const reload = function (cb) {
browserSync.reload();
cb();
}
const watchTask = function (cb) {
browserSync.init({
notify: false,
server: {
baseDir: "app"
}
});
watch('./app/index.html', reload);
watch('./app/assets/styles/styles.css', series(cssInject, styles));
cb();
}
exports.watch = watchTask;
Hence resolved! hope this helps someone else.
I have installed Resumablejs with Yarn and I see it in node_module folder.
Webpack.config.js
Encore
// directory where compiled assets will be stored
.setOutputPath('public/build/')
// public path used by the web server to access the output path
.setPublicPath('/build')
// only needed for CDN's or sub-directory deploy
//.setManifestKeyPrefix('build/')
/*
* ENTRY CONFIG
*
* Add 1 entry for each "page" of your app
* (including one that's included on every page - e.g. "app")
*
* Each entry will result in one JavaScript file (e.g. app.js)
* and one CSS file (e.g. app.css) if your JavaScript imports CSS.
*/
.addEntry('app', './assets/js/app.js')
....
var config = Encore.getWebpackConfig();
var path = require('path');
config.resolve.alias = {
'jquery': path.resolve(__dirname, 'node_modules/jquery/src/jquery'),
'resumablejs': path.resolve(__dirname, 'node_modules/resumablejs/resumable')
};
module.exports = config;
package.json
"dependencies": {
...
"resumablejs": "^1.1.0",
...
}
app.js
/*
* Welcome to your app's main JavaScript file!
*
* We recommend including the built version of this JavaScript file
* (and its CSS file) in your base layout (base.html.twig).
*/
// any CSS you require will output into a single css file (app.css in this case)
require('../css/app.scss');
const $ = require('jquery');
global.$ = global.jQuery = $;
require('resumablejs');
...
import './EntriesJs';
EntriesJs
import AppScripts from './js/appScripts';
export {
AppScripts
}
In my app.js i have declare it require('resumablejs'); and then in my file I want to use it like this:
module.exports = function (uploadJs) {
return filesUploadScript();
};
function filesUploadScript() {
(function () {
console.log('js loaded...');
var uploaderWidgetProperties = $('#_f-uploader-widget-properties');
var r = new Resumable({ ... });
but at this point I am getting the following error:
Uncaught ReferenceError: Resumable is not defined
I have a hard time understanding Webpack so any help will be great.
The following gulp watch task isn't getting triggered when I change any LESS file in the project. Can anyone spot what I'm doing wrong? Most the answers here say to NOT use the watch-less module, which I'm not. It's supposed to listen to changes in any LESS file in the project and when one changes, go to the app.less file to regenerate the CSS file (app.less has #includes to all the files).
var watch = require("gulp-watch");
var less = require("gulp-less");
gulp.watch(paths.source + "**/*.less", function(event){
gulp.src(paths.source + paths.assets + paths.less + "app.less")
.pipe(less().on("error", console.log))
.pipe(gulp.dest(paths.dev + paths.css));
});
Here are some issues:
require("gulp-watch"); is useless here. Actually gulp.watch is a core API of gulp.
The gulpfile.js consists of several gulp tasks.
Run gulp watch in your terminal.
For example:
var gulp = require('gulp');
var path = require('path');
var less = require('gulp-less');
var paths = {
// your paths
};
gulp.task('styles', function () {
return gulp.src(paths.source + paths.assets + paths.less + "app.less")
.pipe(less({
// paths to be used for #import directives
paths: [ path.join(__dirname, 'less', 'includes') ]
}))
.pipe(gulp.dest('./'));
});
gulp.task('watch', function() {
gulp.watch('less/**/*.less', ['styles']);
});
I have a gulp task to inject bower components into my index.html file. I have 2 different versions of it and one works and one does not and I can't tell why the one does not work b/c it looks exactly the same to me.
Does NOT work
var gulp = require('gulp');
var inject = require('gulp-inject');
var mainBowerFiles = require('main-bower-files');
/**
* Injects all the bower dependencies into index.html
*/
gulp.task('inject-bower-files', function() {
return
gulp.src('./index.html')
.pipe(inject(gulp.src(mainBowerFiles(), {read: false})))
.pipe(gulp.dest('./'));
});
Works
var gulp = require('gulp');
var inject = require('gulp-inject');
var mainBowerFiles = require('main-bower-files');
/**
* Injects all the bower dependencies into index.html
*/
gulp.task('inject-bower-files', function() {
var target = gulp.src('./index.html');
var sources = gulp.src(mainBowerFiles(), {read: false});
return target.pipe(inject(sources))
.pipe(gulp.dest('./'));
});
What is the difference between these two?
Your first example is failing due to JavaScript's automatic semicolon insertion.
It is equivalent to
var gulp = require('gulp');
var inject = require('gulp-inject');
var mainBowerFiles = require('main-bower-files');
/**
* Injects all the bower dependencies into index.html
*/
gulp.task('inject-bower-files', function() {
return; // <-- semicolon inserted here, nothing below this runs
gulp.src('./index.html')
.pipe(inject(gulp.src(mainBowerFiles(), {read: false})))
.pipe(gulp.dest('./'));
});
To make it work, change it to
var gulp = require('gulp');
var inject = require('gulp-inject');
var mainBowerFiles = require('main-bower-files');
/**
* Injects all the bower dependencies into index.html
*/
gulp.task('inject-bower-files', function() {
// return is no longer on a line by itself
return gulp.src('./index.html')
.pipe(inject(gulp.src(mainBowerFiles(), {read: false})))
.pipe(gulp.dest('./'));
});
Im new to Gulp.. I have been able to successfully install and concatenate and minify my .js and .css files, however, there is one .css file which i want to exclude - print.css
Ive followed the instructions here: https://www.npmjs.org/package/gulp-ignore install gulp-ignore in my local directory, and modified my gulpfile.js to:
// Include gulp
var gulp = require('gulp');
// Include Our Plugins
var jshint = require('gulp-jshint');
var concat = require('gulp-concat');
var uglify = require('gulp-uglify');
var rename = require('gulp-rename');
var minifyCSS = require('gulp-minify-css');
var imagemin = require('gulp-imagemin');
var exclude = require('gulp-ignore').exclude;
var paths = {
scriptsNonAuth: ['Non-Auth/javascript/*.js'],
scriptsAuth: ['Auth/javascript/*.js'],
stylesNonAuth: ['Non-Auth/css/*.css'],
stylesAuth: ['Auth/css/*.css'],
};
// CSS Task - Non Authenticated
gulp.task('minify-css-non-auth', function() {
gulp.src(paths.stylesNonAuth)
.pipe(minifyCSS(opts))
.pipe(concat('all.min.css'))
.pipe(gulp.dest('Non-Auth/css'))
});
// CSS Task - Authenticated
gulp.task('minify-css-auth', function() {
gulp.src(paths.stylesAuth)
.pipe(minifyCSS(opts))
**.pipe(exclude('Auth/css/print.css'))**
.pipe(concat('all.min.css'))
.pipe(gulp.dest('Auth/css'))
});
Within my CSS Task - Secure, i have included .pipe(exclude('Secure/css/print.css'))
When i run gulp minify-css-secure, the task completes but upon inspecting the new all.min.css, i cant see the contents of print.css within there too.
It's unclear what you are trying to achieve. If I get it right, you want to:
minify all css files (including print.css)
concat all files except print.css into all.min.css
put minified all.min.css and print.css into destination folder
To achieve that, you can use StreamQueue. (source)
var streamqueue = require('streamqueue');
var paths = {
scriptsNonAuth: ['Non-Auth/javascript/*.js'],
scriptsAuth: ['Auth/javascript/*.js'],
stylesNonAuth: ['Non-Auth/css/*.css'],
stylesAuth: ['Auth/css/*.css', '!Auth/css/print.css'],
};
gulp.task('minify-css-auth', function() {
return streamqueue({ objectMode: true },
gulp.src(paths.stylesAuth)
.pipe(minifyCSS(opts))
.pipe(concat('all.min.css')),
gulp.src('Auth/css/print.css'))
.pipe(minifyCSS(opts))
)
.pipe(gulp.dest('Auth/css'))
});
If you want to just exclude some files, you don't need gulp-ignore. Gulp supports ignore globs.
Just prefix the path to exclude with bang.
Like this:
stylesAuth: ['Auth/css/*.css', '!Auth/css/print.css']