= Introduction =

Let's say your company name is !MyCompany and your project is called !MyProject. You want to put most of your code for the project in a library, with a small console program to provide a command line interface to it.

Here are the steps.

= Create a New Solution with Library Project =

 * Launch Xamarin Studio 4.2.3
 * File > New > Solution
 * Choose Cobra > Console Project
 * Give a name like "!MyCompany.!MyProject.Lib" in the "Name:" field
 * Edit the "Solution name:" field to chop off the ".Lib" to make it "!MyCompany.!MyProject"
 * Leave "Create directory for solution" checked.
 * Click "OK"
 * Edit the class:

{{{
#!cobra
class Thing

	test
		pass

	get two as int
		return 2
}}}

= Create Console Project =

 * In the solution outline, the very top node says "!MyCompany.!MyProject"
 * Right click it and choose Add > Add New Project
 * Choose Cobra > Console Project
 * Give a name like "!MyCompany.!MyProject.Console" in the "Name:" field.
 * Right click in the new project in the solution outline and choose "Set As Startup Project"
 * Open Program.cobra in the solution outline and add "Console.readLine":

{{{
#!cobra
"""
Replace this text with a description of your program.
"""

class Program

	def main
		print 'Hello, world!'
		Console.readLine  # <--- add this
}}}

= Copy the Core =

I like to copy Cobra's core library to co-reside with my program. This insulates it from the environment.

 * Right click "!MyCompany.!MyProject.Console" and choose "Options"
 * Choose "Compiler"
 * Make sure "Embed Run Time" is unchecked
 * Add "-copy-core" to the "Cobra Arguments:"
 * Click "OK"

= Run It =

 Try running the project.
   * Choose from the menu, Run > Start Without Debugging
     * If you get an error about System.Core, expand the References of the Console project in the solution outline, right click and choose "Delete".

You should see output like:
{{{
Hello, world!

    trace : t.two=2
          - at Program.cobra:14
          - in Program.main
}}}

Press "Return" to continue.

= Build Files =

In the file system, under the directory MyCompany.MyProject\MyCompany.MyProject.Console\bin\Debug

you will now have these files:

Cobra.Core.dll
MyCompany.MyProject.Console.exe
MyCompany.MyProject.Console.pdb
MyCompany.MyProject.Lib.dll
MyCompany.MyProject.Lib.pdb

= Where to go from here =

 * You can now start fleshing out your library.
 * You can use that library from the console program.
 * You can later use that library in a web site, web service or GUI app.
 * Explore the right click menus in Xamarin Studio.
 * Try out some breakpoint debugging.
 * If you get stuck or experience bugs, get on the Cobra discussion forums.
 * If you see errors on this page, or you have additional tips, edit this page. That's the "wiki way".