def run
if File.exist?("Gemfile")
Bundler.ui.error "Gemfile already exists at #{SharedHelpers.pwd}/Gemfile"
exit 1
end
if options[:gemspec]
gemspec = File.expand_path(options[:gemspec])
unless File.exist?(gemspec)
Bundler.ui.error "Gem specification #{gemspec} doesn't exist"
exit 1
end
spec = Gem::Specification.load(gemspec)
puts "Writing new Gemfile to #{SharedHelpers.pwd}/Gemfile"
File.open("Gemfile", "wb") do |file|
file << "# Generated from #{gemspec}\n"
file << spec.to_gemfile
end
else
puts "Writing new Gemfile to #{SharedHelpers.pwd}/Gemfile"
FileUtils.cp(File.expand_path("../../templates/Gemfile", __FILE__), "Gemfile")
end
end