Grep git log for delivery title and description

pivotal_grep.rb

#!/usr/bin/env ruby

require 'optparse'
require 'ostruct'


def parse_logs(logs)  
  logs.map do |record|
    array = record.scan(/(.+) \[#(\d+)\] (.+)/).first
    next unless array
    OpenStruct.new :revision => array[0], :id => array[1], :comment => array[2]
  end.compact
end

def title(commits)
  puts "Title"
  puts "  Ticket ids: #{commits.map(&:id).uniq.join(", ")}"
end

def description(commits)
  return if commits.size < 1
  puts "Description"
  commits.group_by(&:id).each do |ticket_id, records|
    puts "  Ticket #{ticket_id}:"
    records.each{|r| puts "    * #{r.comment}"} 
  end
end

options = { :branch1 => "master", :branch2 => "origin/master" }

OptionParser.new do |opts|
  
  opts.on("--full", "Create title and description") do |v|
    options[:full] = true
  end
  
  opts.on("-f BRANCH", String, "Branch/Tag/Revision") do |b|
    options[:branch1] = b
  end
  
  opts.on("-s BRANCH", String, "Branch/Tag/Revision N2") do |b|
    options[:branch2] = b
  end
end.parse!

commits = parse_logs(`git log --oneline #{options[:branch1]}...#{options[:branch2]}`.split("\n"))


title(commits)
description(commits) if options[:full]