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quackingduck/update-heroku-gems-file.rb

Created November 25, 2009 03:58
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update-heroku-gems-file.rb
#!/usr/bin/env ruby
gems = File.read(ARGV[0] || 'app.rb').grep(/^gem/).map { |l| l.match(/gem\s+['"]([^'"]+?)['"],\s*['"]([^'"]+?)['"]/).captures }
gems_file = gems.map { |name,version| name + ' --version=' + version }.join("\n") + "\n"
File.open('.gems','w') { |f| f.write gems_file }
puts gems_file
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