Bootstrapping RubyGems with Thor

gistfile1.rb

require "active_support/all"

class Newgem < Thor::Group
  include Thor::Actions

  argument :path
  class_option :rspec,      :type => :boolean, :group => :test_framework, :desc => "Use RSpec as testing framework"
  class_option :test_unit,  :type => :boolean, :group => :test_framework, :desc => "Use Test::Unit as testing framework"

  def prepare_for_invocation
    self.destination_root = path
  end

  def create_directories
    empty_directory "lib/#{name}"
    empty_directory test_directory
  end

  def create_files
    create_file "README.rdoc" do
<<-SOURCE
= #{name}

Some description

== Installation

  gem install #{name}

== Usage

Usage info

== Maintainer

* Your Name (http://yoursite.com)

== License

(The MIT License)

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
SOURCE
    end

    create_file "Gemfile" do
<<-SOURCE
source :rubygems
gemspec
SOURCE
    end

    create_file ".rvmrc" do
      "rvm 1.9.2@#{name}"
    end

    create_file "#{name}.gemspec" do
<<-SOURCE
# -*- encoding: utf-8 -*-
$:.push File.expand_path("../lib", __FILE__)
require "#{name}"

Gem::Specification.new do |s|
  s.name        = "#{name}"
  s.version     = #{module_name}::Version::STRING
  s.platform    = Gem::Platform::RUBY
  s.authors     = ["Your name"]
  s.email       = ["Your e-mail"]
  s.homepage    = "http://rubygems.org/gems/#{name}"
  s.summary     = "TODO: Write a description"
  s.description = s.summary

  s.files         = `git ls-files`.split("\\n")
  s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\\n")
  s.executables   = `git ls-files -- bin/*`.split("\\n").map{ |f| File.basename(f) }
  s.require_paths = ["lib"]

  # s.add_dependency "activesupport"
  # s.add_development_dependency "rspec", ">= 2.0.0"
end
SOURCE
    end

    create_file "lib/#{name}/version.rb" do
<<-SOURCE
module #{module_name}
  module Version
    MAJOR = 0
    MINOR = 1
    PATCH = 0
    STRING = "\#{MAJOR}.\#{MINOR}.\#{PATCH}"
  end
end
SOURCE
    end

    create_file "lib/#{name}.rb" do
<<-SOURCE
module #{module_name}
  autoload :Version, "#{name}/version"
end
SOURCE
    end

    create_file ".gitignore" do
<<-SOURCE
.DS_Store
pkg
tmp
SOURCE
    end

    send("create_#{test_directory}_files")
  end

  def run_commands
    in_root do
      run "rvm 1.9.2@#{name} --create"
      run "git init"
      run "gem install bundler"
    end
  end

  private
  def create_spec_files
    create_file "Rakefile" do
<<-SOURCE
require "bundler"
Bundler::GemHelper.install_tasks

require "rspec/core/rake_task"
RSpec::Core::RakeTask.new
SOURCE
  end

    create_file "spec/spec_helper.rb" do
      %[require "#{name}"\n]
    end

    create_file "spec/#{name}_spec.rb" do
<<-SOURCE
require "spec_helper"

describe #{module_name} do

end
SOURCE
    end
  end

  def create_test_files
    create_file "Rakefile" do
<<-SOURCE
require "bundler"
Bundler::GemHelper.install_tasks

require "rake/testtask"
Rake::TestTask.new do |t|
  t.libs << "test" << "lib"
  t.test_files = FileList["test/{test_*,*_test}.rb"]
  t.verbose = true
end
SOURCE
    end

    create_file "test/test_helper.rb" do
<<-SOURCE
require "test/unit"
require "#{name}"
SOURCE
    end

    create_file "test/#{name}_test.rb" do
<<-SOURCE
require "test_helper"

class  #{module_name}Test < Test::Unit::TestCase

end
SOURCE
    end
  end

  def name
    File.basename(path)
  end

  def module_name
    name.underscore.classify
  end

  def test_directory
    options[:test_unit] ? "test" : "spec"
  end
end