Git hook to avoid commit debug lines (binding.pry console.log debugger...)

pre-commit

#!/usr/bin/env ruby

# .git/hooks/pre-commit
# Don't forget of make this file executable by chmod a+x

# Validates that you don't commit forbidden keywords to the repo
# You can skip this checking with 'git commit --no-verify'

exit 0 if ARGV.include?('--no-verify')
# Update this list with your own forbidden keywords
KEYWORDS = %w(binding.pry console.log debugger)

# list all the files staged for commit
files_changed = %x(git diff --cached --name-only --).split

# search files for keywords
%x(git grep -q -E "#{KEYWORDS.join('|')}" #{files_changed.join(' ')})
if $?.exitstatus.zero?
  puts "# Check following lines:"
  files_changed.each do |file|
    KEYWORDS.each do |keyword|
      %x(git grep -q #{keyword} #{file})
      if $?.exitstatus.zero?
        line = %x(git grep -n #{keyword} #{file} | awk -F ":" '{print $2}').split.join(', ')
        puts "#{file}:#{line} contains #{keyword}."
      end
    end
  end
  puts "Use 'git commit --no-verify' to skip this validation"
  exit 1
end