pre-push git hook that runs rubocop on latest commit

pre-push

#!/usr/bin/env ruby

changed_files = `git diff-tree --no-commit-id --name-only --diff-filter=AM -r HEAD`.lines.map(&:chomp)
return if changed_files.empty?

results = `bundle exec rubocop --color #{changed_files.join(" ")}`

no_offenses_detected = results.include?("\e[32mno offenses\e[0m detected")
return if no_offenses_detected

results.each_line { |line| puts line }
puts
puts "\e[31m -- WARNING: cannot push to remote repos due to lingering style violations! -- \e[0m"
puts
exit! 1