Git commit hook to abort commits when I accidentally commit dumb shit.

pre-commit

#!/usr/bin/env ruby

# Checks for things that I often commit accidentally and bails out of the
# commit. To skip this pre-commit hook use `git commit --no-verify`.

checks = [
  /\bddescribe\b/,
  /\biit\b/,
  /\bxit\b/,
  /binding.pry/,
  /debugger/
]

files_modified = `git diff-index --diff-filter=ACMRTUXB --cached --name-only HEAD`.split("\n")

files_modified.each do |file_name|
  content = `git show :"#{file_name}"` # read file from cache (i.e. what will be commited)
  checks.each do |check|
    if content =~ check
      STDERR.puts "#{file_name} matches pre-commit check #{check}. Aborting commit"
      exit 1
    end
  end
end