Developing less.js

Install these tools

• cygwin (ensure make is selected) - http://cygwin.com/install.html
• node - http://nodejs.org/
• phantomjs - http://phantomjs.org/download.html

make sure the paths are setup. If you startup cygwin and type node -v you should see the node compiler. If you run phantomjs -v you should see the phantomjs version number.

• clone your less.js repository locally
• navigate to your local less.js repository and run npm install this installs less' npm dependencies.
• run npm -g install uglify-js if you want to do builds. This needs to be done so that uglify-js is available globally.

usage

If you go to the root of the less repository you should be able to do make test - this should run the tests. make browser-test should run the browser tests. If you want to try out the currrent version of less against a file, from here do node bin/lessc path/to/file.less

To debug the browser tests, run make browser-test-server then go to http://localhost:8081/browser/test-runner-main.htm or one of the other test runner pages created in {path-to-less.js-repository}/test/browser/

Optional: To get the current version of the less compiler do npm -g install less - npm is the node package manager and "-g" installs it to be available globally.

You should now be able to do lessc file.less and if there is an appropriate file.less then it will be compiled and output in the current directory.