Post-commit hook to fix files with Rubocop.

README.md

Installation

gem install refined-refinements
git clone https://gist.github.com/40da4532046d65318f860bff115db603.git
cp 40da4532046d65318f860bff115db603/pre-commit 40da4532046d65318f860bff115db603/post-commit your_repo/.git/hooks

Features

• Fail if trying to commit to the master branch.
• Run rubocop --auto-correct on the changed files.
• Automatically push to origin, even if the branch is not there yet.
• Sets the upstream, so git pull -r will work as expected.

Caveats

• Disable for one commit with git commit --no-verify.

post-commit

#!/bin/sh

BRANCH_NAME=$(git symbolic-ref --short HEAD)
git push -u origin $BRANCH_NAME

pre-commit

#!/usr/bin/env ruby

begin
  require 'refined-refinements/colours'
rescue LoadError
  abort "Run gem install refined-refinements."
end

using RR::ColouredTerminal

# Do not allow commiting to master.
if `git symbolic-ref --short HEAD`.chomp == 'master'
  abort("<red>Error:</red> You're on master, y'know?")
end

# Format with Rubocop.
NONSTANDARD_RUBY_FILES = %w(Gemfile Guardfile Rakefile .pryrc)

changed_files = `git diff --cached --name-only --diff-filter=ACM`.split("\n")
changed_ruby_files = changed_files.select do |path|
  path.end_with?('.rb') || NONSTANDARD_RUBY_FILES.include?(path)
end

# Stage Rubocop changes.
unless changed_ruby_files.empty?
  puts "<bold>~</bold> <green>Changed Ruby files:</green> #{changed_ruby_files.map { |file| "<bright_black>#{file}</bright_black>" }}"
  puts "<bold>~</bold> <green>Running Rubocop.</green>"
  system("bundle exec rubocop --auto-correct #{changed_ruby_files.join(' ')}")
  system("git add #{changed_ruby_files.join(' ')}")
end

# Crystal lang version:
#
#!/usr/bin/env zsh
#
#crystal tool format
#git diff --cached --name-only --diff-filter=ACM | egrep '\.cr$' | xargs git add