Ruby style guide git pre-commit hook using Rubocop as the style guide checker. Only runs on staged ruby files that have been added and/or modified.

pre-commit

#!/usr/bin/env ruby

require 'english'
require 'rubocop'

ADDED_OR_MODIFIED = /A|AM|^M/.freeze

changed_files = `git status --porcelain`.split(/\n/).
  select { |file_name_with_status|
    file_name_with_status =~ ADDED_OR_MODIFIED
  }.
  map { |file_name_with_status|
    file_name_with_status.split(' ')[1]
  }.
  select { |file_name|
    File.extname(file_name) == '.rb'
  }.join(' ')

system("rubocop #{changed_files}") unless changed_files.empty?

exit $CHILD_STATUS.to_s[-1].to_i

pre-push

#!/usr/bin/env ruby

require 'english'
require 'rspec'

puts 'Running Rspec for the whole project'

system('rspec')

exit $CHILD_STATUS.to_s[-1].to_i