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Is there a way to combine and minify all bower installed libraries into 1 file automatically?
First I tried the most basic approach: combine all .js files from all subdirectories:
uglify: {
options: {compress: true},
my_target: { files: {
'vendor.js': ['bower_components/**/*.js'],
} } }
But this is obviously a bad approach. It also doesn't work because of too many errors.
I manually deleted all the files and kept only 1 (main) file that each library has, and it worked.
Is there a way to do this all automatically?
Also, is it advisable to do it? (i.e. combine all vendor libraries into 1 file)
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Grunt has two plugins to bundle and minify CSS and JavaScript. In Visual Studio you are probably used to pressing Ctrl + Shift + B to compile a solution and creating a build script for continuous integration tools. That kicks off the process to build your assemblies and executables. But what about that JavaScript and CSS?
GruntJS is a web task runner built on top of NodeJS. The grunt ecosystem has thousands of useful plugins that should automate just about every task you might have. Grunt has two plugins to bundle and minify CSS and JavaScript.
But while minification is a common task for any build system, file concatenation is also a technique used to minimize the number of http requests. This helps to improve web page performance. In this article, we will look at the Grunt plugin: grunt-contrib-concat.
There are two sections to this code: the call to the grunt.initConfig () method, and the two commands that load the plugin and register the task. The method: initConfig belongs to the grunt object. For this article, we are concatenating three JavaScript files.
I recommend the combination of 2 nice grunt libraries, Wiredep and Usemin:
Wiredep: Load all dependencies of bower identified in bower.json inside your html automatically
Usemin: Detect all src inside two comments tags and all that source are minified and concatenated in dist folder, below are a little example of a grunt files using this packages, is based on the generator of angular to yeoman this is only a brief of that grunt
Grunt
wiredep: {
options: {
cwd: 'appFolder'
},
app: {
src: ['htmlCollections'],
ignorePath: /\.\.\//
}
},
useminPrepare: {
html: 'htmlCollections',
options: {
dest: 'distributionFolder',
flow: {
html: {
steps: {
js: ['concat', 'uglifyjs'],
css: ['cssmin']
},
post: {}
}
}
}
},
usemin: {
html: ['distributionFolder+HtmlFiles'],
css: ['distributionFolder+cssFiles'],
js: ['distributionFolder+javascriptFiles']
}
HTML
<!doctype html>
<html lang="en" ng-app="MobileDev" id="ng-app">
<head>
<!-- build:css(app) styles/vendor.css -->
<!-- bower:css -->
//This gonna be generated for the grunt by dependencies in bower
<!-- endbower -->
<!-- endbuild -->
<!-- build:css(.tmp) styles/main.css -->
//All the script inside this gonna be concatened and minified in
//the dist folder by the name of main.css
<link type="text/css" rel="stylesheet" href="styles/app.css"/>
<!-- endbuild -->
</head>
<body>
<!-- build:js(app) scripts/vendor.js -->
<!-- bower:js -->
//This gonna be generated for the grunt by dependencies in bower
//And in distribution all bower components added gonna be minified by usemin in
//vendor.js
<!-- endbower -->
<!-- endbuild -->
<!-- build:js({.tmp,app}) scripts/scripts.js -->
//All the script inside this gonna be concatened and minified in the dist
//folder by the name of scripts.js
<script type="text/javascript" src="scripts/numero1"></script>
<script type="text/javascript" src="scripts/numero2"></script>
<!-- endbuild -->
</body>
Just needed wiredep
uglify: {
options: { compress: true },
my_target: {
files: { 'public/vendor.js': require('wiredep')().js
} } },
cssmin: {
minify: {
files: { 'public/vendor.css': require('wiredep')().css
} } },
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