pre-commit.rb

#!/usr/bin/env ruby
#
# Git pre-commit hook:
# Install at .git/hooks/pre-commit and set as executable
#
# Interactively sets git commit author for pair programming
#
###################################################
# Configuration

me = "Sam Goldstein"
my_email = 'sam@aboutus.org'
pair_email = 'developers@aboutus.org'

developers = [
  "Stephen Judkins",
  "Quin Hoxie",
  "Didip Kerabat",
  "Jason Watkins",
  "Brandon CS Sanders"
]

###################################################

puts "Pairing? (enter number):"
developers.each_with_index do |name, index|
  puts "  #{index + 1}: #{name}"
end

choice = File.new("/dev/tty").readline.chomp
unless choice =~ /\A\d*\Z/
  puts "Bad input `#{choice}'"
  exit 1
end

commit_name = me
commit_name += ' & ' + developers[choice.to_i - 1] unless choice == ''
commit_email = choice == '' ? my_email : pair_email

puts "...setting *commit author* to `#{commit_name}'"
puts "...setting *commit email* to `#{commit_email}'"

`export GIT_AUTHOR_COMMIT='#{commit_name}'`
`export GIT_AUTHOR_EMAIL='#{commit_email}'`