Git message generator

git_message.rb

#!/usr/bin/env ruby
# frozen_string_literal: true

last_comment = `git log  --pretty=oneline --abbrev-commit | head -n 1`.split("\n").first

def generate_message(n)
  "changes ##{n} at #{Time.now.strftime "%H:%M:%S %a %d.%m.%y"}"
end

message = if last_comment.nil?
            generate_message 1
          elsif m = last_comment.match(/changes #(\d+)/)
            generate_message m[1].to_i + 1
          else
            generate_message 1
          end

puts message