Octonore 
An octolicious wrapper around the Gitignore Templates API.
$ gem install octonore
Usage
List the available templates by calling Template's list method.
>> Octonore::Template.list
=> ["Actionscript", "Android", "AppceleratorTitanium", "Autotools", "Bancha", "
C", "C++", "CFWheels", "CMake", "CSharp", "CakePHP", "Clojure", "CodeIgniter...
To get a gitignore template you first need to instantiate it.
>> c_template = Octonore::Template.new('C')
=> #<Octonore::Template:0x007fe65b8b2420 @name="C", @source="# Object files\n*.
o\n\n# Libraries\n*.lib\n*.a\n\n# Shared objects (inc. Windows DLLs)\n*.dll\n*.
so\n*.so.*\n*.dylib\n\n# Executables\n*.exe\n*.out\n*.app\n">
To get the template's source code, you can call its source accessor.
>> c_template.source
=> "# Object files\n*.o\n\n# Libraries\n*.lib\n*.a\n\n# Shared objects (inc. Wi
ndows DLLs)\n*.dll\n*.so\n*.so.*\n*.dylib\n\n# Executables\n*.exe\n*.out\n*.app
\n"
You can also get the template's name with the name accessor.
>> c_template.name
=> "C"
You can reload the template's source from Github with the update method.
>> c_template.update
=> "# Object files\n*.o\n\n# Libraries\n*.lib\n*.a\n\n# Shared objects (inc. Wi
ndows DLLs)\n*.dll\n*.so\n*.so.*\n*.dylib\n\n# Executables\n*.exe\n*.out\n*.app
\n"
Example Program
The following program asks the user for the name of a gitignore template. It then writes the gitignore to a file ending in .gitignore. If the user enters Java, then it will write the Java gitignore template to java.gitignore in the current directory.
require 'octonore'
begin
print "Enter the name of a gitignore template (case sensitive): "
template = Octonore::Template.new(gets.strip)
File.open("#{template.name.downcase}.gitignore", 'w') { |file|
file.write(template.source) }
rescue GitignoreTemplateNotFoundError => e
puts e.message
end