brew-origins.rb

#!/usr/bin/env ruby
# 
# Classify homebrew formulas by origins

def repo f
	STDERR.print '.'
	`brew info #{f}`.split("\n").map(&:chomp).each do |s|
		if s =~ /^From: (.*)/
			return $1.gsub(/^https:\/\/github.com\/(.*)\/blob\/.*/, '\1')
		end
	end
	return nil
end

puts 'Determine formula origins...'
`brew list`.split("\n").map(&:chomp).map { |f| [f, repo(f)] }.group_by { |f,r| r }.each do |r,fa|
	puts "\n#{r ? r : 'none'}"
	fa.each{|f,_| puts "\t"+f }
end

# vim: ft=ruby