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grunt-multiply-layouts

Automatic css and js minifying for multiply Jade layouts using Grunt

Why do I need this plugin?

In my Node.js apps I use several jade templates with different css and js files included. It can be, say, public and private parts of one site. You don't need javascripts from private part to be loaded in public part and vice versa. If you use standard module, it will pick all files in your css/js directory, combine and compress them.

This plugin do it other way: you setup task with one of available modes: prod or dev. In prod task minifies css and js for every layout separately and creates modified layouts, linked to them, in dev just copying layouts and js/css files from development directories to those, your application will use.

Getting Started

This plugin requires Grunt ~0.4.5

If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:

npm install grunt-multiply-layouts --save-dev

Once the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:

grunt.loadNpmTasks('grunt-multiply-layouts');

The "multiply_layouts" task

Overview

In your project's Gruntfile, add a section named multiply_layouts to the data object passed into grunt.initConfig().

grunt.initConfig({
  multiply_layouts: {
    options: {
          staticSrc: 'public-dev',
          staticDst: 'public',
          cssDir: 'css',
          jsDir: 'js'
    },
    layouts: {[{
          src: 'views/layouts-dev',
          dst: 'views/layouts',
          mode: 'dev'
    }]},
  },
});

Options

options.staticSrc

Type: String
Default value: None

Directory from which css and js files will be copied. You should develop them in it.

options.staticDst

Type: String
Default value: None

Directory to which css and js files will be copied. It's static directory in your app.

options.cssDir

Type: String
Default value: None

Directory used for storing css files. Task will proceed only css files in staticSrc/cssDir.

options.jsDir

Type: String
Default value: None

Directory used for storing js files. Task will proceed only js files in staticSrc/jsDir.

Layouts

layouts.src

Type: String
Default value: None

Relative path to your jade layouts development directory.

layouts.dst

Type: String
Default value: None

Relative path to your jade layouts destination directory. You should use them from this location in your jade templates.

layouts.mode

Type: String
Default value: None
Possible values: prod or dev

Production prod or development dev mode is used. You should use one of it.

In dev mode task will copy layouts from layouts.src to layouts.dst, plus copy all css and js files used in layouts, located in layouts.src from options.staticSrc to options.staticDst.

In prod mode task will read layouts from layouts.src, replace all css links to one with minifed css and all js sources to one with minified js. All css and js files will be minified for each layout separately.

Usage Examples

Default Options

No default options setup available at this time.

Custom Options

In this example, there are 2 layout tasks:

  1. Multiply Layouts will read Jade layouts from views/layouts-dev, extract information about all css and js files used in them, copy css files from public-dev/css to public/css and js files from public-dev/js to public/js, but only those linked in Jade layouts. Plus it will copy this Jade layout from views/layouts-dev to views/layouts.
  2. Multiply Layouts will read Jade layouts from views/layouts-prod, replace all css links and js sources to /css/<%layout-filename%>.min.css and /js/<%layout-filename%>.min.js respectively, plus minify css and js files for each layout separately.
grunt.initConfig({
  multiply_layouts: {
    options: {
          staticSrc: 'public-dev',
          staticDst: 'public',
          cssDir: 'css',
          jsDir: 'js'
    },
    layouts: {[{
          src: 'views/layouts-dev',
          dst: 'views/layouts',
          mode: 'dev'
    }, {
          src: 'views/layouts-prod',
          dst: 'views/layouts',
          mode: 'prod'
    }]},
  },
});

How prod mode modifies layouts?

Here's simple example. Taking one template from above example, task will replace only css and js files that are in cssDir and jsDir respectively

Source views/layouts-prod/main-layout.jade

doctype html
html

  head
    meta(charset='utf-8')
    meta(name='viewport', content='width=device-width')
    link(href='img/mainicon.png', rel='icon')
    link(rel='stylesheet', href='css/main.css')
    link(rel='stylesheet', href='css/fonts.css')
    link(rel='stylesheet', href='css/text.css')
    link(rel='stylesheet', href='css/graduates.css')
    script(src='js/jquery-1.10.2.js')
    script(src='/js/lib/twitter_flight.js')
    script(src='js/component/preview-story-component.js')
    script(src='js/component/show-full-story-component.js')
    script(src='js/component/move-footer.js')
    script(src='js/init-graduates.js')
    link(href='http://fonts.googleapis.com/css?family=Roboto:300,500,400&subset=latin,cyrillic-ext,cyrillic', rel='stylesheet', type='text/css')
    block head

  body
    block content

Destination views/layouts/main-layout.jade

doctype html
html

  head
    meta(charset='utf-8')
    meta(name='viewport', content='width=device-width')
    link(href='img/mainicon.png', rel='icon')
    link(href='/css/main-layout.min.css', rel='stylesheet')
    script(src='/js/main-layout.min.js', type='text/javascript')
    link(href='http://fonts.googleapis.com/css?family=Roboto:300,500,400&subset=latin,cyrillic-ext,cyrillic', rel='stylesheet', type='text/css')
    block head

  body
    block content

Contributing

In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.

Release History

0.1.1 - Minor validation added, plus texts and links were fixed
0.1.0 - First version, everything works fine but it's written like sh!t

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Plugin for minifying js and css files for several jade templates

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