Commit hook to pick the ticket number from branch name and append it to git log summary

commit-msg

#!/usr/bin/env ruby

branch_name = `git symbolic-ref --short HEAD`
if !File.read(ARGV[0]).match?(/fixup!|squash!|\[WIP\]|\[\d+\]/) && branch_name.match?(/\d+/)
  story_number = branch_name.match(/\d+/)[0]
  if story_number
    lines = File.readlines(ARGV[0])
    lines[0] = "[#{story_number}] " + lines[0]
    File.open(ARGV[0], 'w') { |f| f.write(lines.join) }
  end
end