Simple ruby script for creating ical calendars from local git repos

gitcal.rb

#! /usr/bin/env ruby

# gitcal.rb
# creates an .ics file from a local git repository and loads it into iCal.app
# Usage: `[bundle exec] ruby gitcal.rb [repo_path] [branch] [count_back]`
# A shell wrapper script maybe a good idea, but for me this works as it is.  

require 'grit' # https://github.com/mojombo/grit
require 'ri_cal' # https://github.com/rubyredrick/ri_cal

repo_path = ARGV[0] ? File.expand_path(ARGV[0]) : Dir.pwd
branch =  ARGV[1] || 'develop'
count_back = ARGV[2] || 500

repo = Grit::Repo.new repo_path
repo_name = repo.working_dir.split('/').last
file_name = "#{repo_name}.ics"

my_commits = repo.commits(branch, count_back).select do |c|
  c.author.name == 'Eckhard Rotte'
end

cal = RiCal.Calendar do
  my_commits.uniq.each do |c|
    event do
      summary c.short_message
      description "id: #{c.id}\n #{c.message}\nauthored: #{c.authored_date}\ncommitted:#{c.committed_date}"
      dtstart c.authored_date
    end
  end
end

File.open(file_name, 'w') do |file|
  file.write cal
end

system "open #{file_name}"

# or
# $stdout.puts cal

A very creative and hacky way to surrender :)