Harvest your git messages

gistfile1.rb

#!/usr/bin/env ruby

# Adapted from https://gist.github.com/946311
#
# To use, put something like the following in your .bashrc.local:
#
#    alias harvest='rvm use 1.9.2@harvester;harvester;cd ..;cd -'

author = `git config --global user.name`.chomp

require 'rubygems'
require 'active_support/all'
require 'grit'
include Grit
repo = Repo.new(".")

only_commits_with = ARGV[0] || "#"

puts "Commits for #{author} from last 8 days containing '#{only_commits_with}'\n\n"

commits = repo.commits_since('HEAD', 8.days.ago).select{|c| c.author.name.include?(author)}.select{|c| c.message.include?(only_commits_with) }

commits_by_date = commits.group_by {|x| x.authored_date.to_date}

output = commits_by_date.map { |date, commits|
  # Only first line of each message
  messages = commits.map { |c| c.message.split("\n")[0] }.join("; ")
  [date, messages].join("\n")
}.join("\n\n")

puts output