gistfile1.sh

# Configure post-commit hook to take a photo
function gimage() {
 cp ~/.post-commit-image .git/hooks/post-commit
}

gistfile2.rb

#!/usr/bin/env ruby
file="~/.gitshots/#{Time.now.to_i}.jpg"

unless File.directory?(File.expand_path("../../rebase-merge", __FILE__))
  puts "Taking capture into #{file}!"
  system "imagesnap -q -w 3 #{file} &"
end

exit 0