Straight to the point!
Drop a couple of files into your Symfony2′s project directory or any php library:
Gruntfile.js
module.exports = function (grunt) {
grunt.initConfig({
shell: {
tests: {
command: [
'clear',
'vendor/bin/phpspec run -n --ansi'
].join('&&'),
options: {
stdout: true
}
}
},
watch: {
tests: {
files: ['{lib,src,spec}/**/*.php'],
tasks: ['shell:tests']
}
}
});
// plugins
grunt.loadNpmTasks('grunt-contrib-watch');
grunt.loadNpmTasks('grunt-shell');
// tasks
grunt.registerTask('tests', ['shell:tests', 'watch:tests']);
}; |
and
package.json
{
"devDependencies": {
"grunt": "~0.4.1",
"grunt-contrib-watch": "~0.5.1",
"grunt-shell": "~0.3.1",
"grunt-cli": "~0.1.9"
}
} |
Then proceed to install the dependencies above similar to composer like a pro:
brew install node npm install |
Then for your commodity create a file like:
~ cat ./dev #!/bin/bash node_modules/.bin/grunt tests |
and simply run:
./dev |
And try to change a file in your folders src, lib or spec and you will see the watcher in action.
Now start doing PRs to your favourite repos with these changes and give the reference url if you want 
!
I credit @chadrien for helping me get up to speed with this technique.
You are welcome to say thanks buying http://pilotci.com The Lean Book on Symfony2 Ecommerce !
With the support I will buy a license of keynote to present my talk in Argentina in this conference:
http://www.phpconference.com.ar/schedule/?lang=en
undeservingly thankful, your friend
@cordoval