pre-commit git hook - no "hacking"

pre-commit

#!/usr/bin/env ruby

# This pre-commit hook will prevent any commit to forbidden branches
# (by default, "staging" and "production").
# Put this file in your local repo, in the .git/hooks folder
# and make sure it is executable.
# The name of the file *must* be "pre-commit" for Git to pick it up.

def current_branch()
  branches = `git branch --no-color`.split(/\n/)
  current = branches.select{ |b| b =~ /\s*\*/ }.first
  current.gsub(/[\*\s]/, "")
end

def get_current_hacks
    hacks_in_place = ""

    files_to_be_commited = `git diff --cached --name-only --diff-filter=ACM`.split(/\n/)

    files_to_be_commited.each do |file_name|

        hack_present_in_committed_patch = %x[git diff --cached #{file_name} | grep "hacking"]
        hack_present = !hack_present_in_committed_patch.nil? && !hack_present_in_committed_patch.empty?

        if !hack_present
          next
        end

        hack = %x[grep -iHnw -e "hacking" #{file_name}]
        hacks_in_place += "#{hack}\n" if (!hack.nil? && !hack.empty?)
    end

    hacks_in_place
end

def exit_if_hacks_in_place
    hacks = get_current_hacks()

    if (!hacks.nil? && !hacks.empty?)
      puts
      puts " -------------- STOP THE PRESS! ---------------"
      puts " WOH WOH WOH! You have Hacks in your code yo!"
      puts
      puts hacks
      puts
      puts " Surely you don't want to push that?"
      puts
      puts
      # puts " If you really do, force the commit by adding --no-verify to the command."
      # puts
      exit 1
    end
end

exit_if_hacks_in_place