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Grunt: Difference between revisions

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Grunt is a special node package in that it comes in 2 parts. One part is the grunt package that is installed in the node_modules folder by the "npm install" command listed in the previous section. The second part is that you also need to install the grunt-cli package globally in order to have a "grunt" command in your path. To do this run "npm install -g grunt-cli" (you may need additional permissions to do this).  
Grunt is a special node package in that it comes in 2 parts. One part is the grunt package that is installed in the node_modules folder by the "npm install" command listed in the previous section. The second part is that you also need to install the grunt-cli package globally in order to have a "grunt" command in your path. To do this run "npm install -g grunt-cli" (you may need additional permissions to do this).  


=== grunt js ===
Typical commands:
Run the <code>grunt js</code> command from any folder in Moodle and it will "build" all of the javascript from that directory and it's sub directories.


When <code>grunt js</code> runs it currently does 3 things:
grunt amd              # Short-cut for grunt jshit uglify, rebuild all AMD modules.
 
grunt shifter           # Run shifter
* - it runs [https://github.com/yui/shifter shifter] to build any YUI modules in the source tree. See [YUI/Shifter] for more information on shifter
grunt js                # Short-cut for grunt amd shifter
* - it runs [http://jshint.com/ jshint] to detect invalid Javascript, or Javascript that does not comply with our coding guidelines
* - it runs [http://lisperator.net/uglifyjs/ uglifyjs] to reduce the size of any Javascript by removing whitespace, stripping comments, shortening variable names etc.
grunt css              # Run less
 
You must run <code>grunt js</code> after making any change to the Javascript in Moodle.
grunt                   # Try to do the right thing:
 
                        # * If you are in a folder called amd, do grunt amd
=== grunt css ===
                        # * If you are in a folder called yui/src/something, do grunt shifter
Run the <code>grunt css</code> command to compile less files into css. At this time this only affects changes in the bootstrapbase theme.
                        # * Otherwise build everything (grunt css js).


== See also ==
== See also ==

Revision as of 14:23, 8 January 2016

Moodle 2.9


Grunt is a command line tool used to prepare our javascript and less-generated css for production usage. After making any change to javascript or less files in Moodle, you must run grunt to lint, minify and package the javascript/css properly so that it can be served by Moodle.

Install grunt

The Javascript modules (AMD and YUI) and less css in Moodle must be processed by some build tools before they will be visible to your web browser. We use "grunt" as a build tool to wrap our different processes. Grunt is a build tool written in Javascript that runs in the "nodejs" environment. This means you first have to install nodejs - and it's package manager "npm". The details of how to install those packages will vary by operating system, but on Linux it's probably similar to "sudo apt-get install nodejs npm". There are downloadable packages for other operating systems here: http://nodejs.org/download/. Once this is done, you can run the command: "npm install" from the top of the Moodle directory to install all of the required tools.

Running grunt

Grunt is a special node package in that it comes in 2 parts. One part is the grunt package that is installed in the node_modules folder by the "npm install" command listed in the previous section. The second part is that you also need to install the grunt-cli package globally in order to have a "grunt" command in your path. To do this run "npm install -g grunt-cli" (you may need additional permissions to do this).

Typical commands:

grunt amd               # Short-cut for grunt jshit uglify, rebuild all AMD modules.
grunt shifter           # Run shifter
grunt js                # Short-cut for grunt amd shifter

grunt css               # Run less

grunt                   # Try to do the right thing:
                        # * If you are in a folder called amd, do grunt amd
                        # * If you are in a folder called yui/src/something, do grunt shifter
                        # * Otherwise build everything (grunt css js).

See also