pre-commit

#!/usr/bin/env ruby

#
# This is a Git pre-commit hook.
#
# Reject commits that contain any of the following strings:
# # NO COMMIT | // NO COMMIT | #NOCOMMIT | //NOCOMMIT | etc
# debugger
# binding.pry
# console.log
#
# If you attempt to commit any of these strings, you will get a pretty error telling you
# where the offence occured, and that you can use `git commit -n` to skip this check, in
# the case that you want to forcibly add (for example) a console.log
#
# INSTALL:
#  - Save this file as <project_path>/.git/hooks/pre-commit
#  - Make sure you have Ruby installed
#
# USAGE:
#  Forget this script exists until you accidentally stage a "bidning.pry" and are
#  prevented from committing your changes by it
#


TESTS = [
  '(#|//) ?NO ?COMMIT',
  '\bdebugger\b',
  '\bbinding.pry\b',
  '\bconsole\.log\b',
]

num_violations = 0

lines = `git diff --cached`.split("\n")

files = []
bad_files = []

file = ""
file_outputted = false

lines.each do |line|
  if line[/^(\+\+\+) b\//]
    file = line
    files << file
    file['+++ b/'] = ''
    file_outputted = false
    next
  end

  TESTS.each do |test|
    if match = line[/^\+.*#{test}/]
      bad_files << file
      unless file_outputted
        puts "\n#{file}"
        file_outputted = true
      end
      puts "\t#{line.gsub(/#{test}/, "\e[0;37;41m\\0\e[0m")}"
      num_violations += 1
    end
  end
end

bad_files.uniq!

if num_violations > 0
  puts "\n#{num_violations} violations found in #{bad_files.length} of #{files.length} files"
  puts
  puts "Use \e[1;37m git commit -n \e[0m to bypass this pre-commit hook"
  exit 1
end

Install manual?