Installing

These are the steps that I use to get the plug-in project imported into Eclipse and running against a project.
Please let me know if there are alternate methods for any of these tasks or if there is a better way to work with eclipse plug-ins along with git.

Requirements

• Eclipse running on Java 1.6
  • For MacOsX, download Eclipse Cocoa 64bits and change launch JVM in Java Preferences (or edit Eclipse configuration)
• Eclipse Plug-In Development Environment : should be somewhere in your main Eclipse update site

Importing the Plug-in

• Get a local copy of the repository. (git clone git://github.com/greggian/Eclipse-Closure-Compiler.git).
• Within your Eclipse workspace, go to File → Import.
• Choose Existing Projects into Workspace.
• Click the browse button to choose the ‘root directory’ of the project to import. This should be your repository directory (eg. Eclipse-Closure-Compiler). The ‘Projects’ list should be updated with one project to be imported.
• I would recommend not choosing the ‘Copy projects into workspace’ option so that the files are linked to and changes can be picked up by git.
• Click Finish to complete the import process.

Running the Plug-in

• If you open the plugin.xml file within the plug-in project, it should open in the ‘Plug-in Manifest Editor’. This editor has ‘Testing’ tasks on the ‘Overview’ tab that can be used to launch the plug-in. Using the classic Run command should work fine too if you run as Eclipse Application.
• Once the application is running, you will need to create a project in this workspace if there is not one already. Right click on the project in the ‘Project Explorer’ and choose ’Add/Remove Closure Nature. This will add the necessary closure nature to this project which will also add the closure builder to the project.
• Now that the closure builder is running, you can try creating a js file. Writing JavaScript like the following should display some errors.
  

  
  /**@param {string} to*/
  function sayHi(to){
  	return "Hi, "+to;
  }
  var hello = sayHi("bob");
  var again = sayHi(5);
  

• The errors will be displayed in the ‘Problems’ view. (you can add the problems view from: Window → Show View → Problems).