gtr

#!/usr/bin/env ruby

require 'rubygems' unless RUBY_VERSION.to_i > 1.9
require 'git'

call_path = ENV["PWD"]

begin
    git = Git.open(call_path)
rescue ArgumentError => e
    system("echo \"gto: #{call_path}: Not a git repository\"")
    exit
else

    if git
        branch_name = `git rev-parse --abbrev-ref HEAD`.chomp
        remote_url = git.remote("origin").url.gsub(/git@/, 'http://').gsub(/\.git/, '').gsub(/\.com:/, '.com/') + "/compare/" + branch_name + "?expand=1"
        sys = `uname -s`.chomp
        if sys == "Darwin"
            open_cmd = "open"
        elsif sys == "Linux"
            open_cmd = "xdg-open"
        end
        `#{open_cmd} \"#{remote_url}\"`
    else
        system("echo \"gtr: Could not open.\"")
    end
end