Overcommit pre-commit git hook for Specta and Quick Focused Examples

.overcommit.yml

PreCommit:
  NoFocusedExamples:
    include: ['*Tests/*.swift', '*Tests/*.m']
    enabled: true
    description: 'Checking for temporary focused examples'

no_focused_examples.rb

# .git-hooks/pre_commit/no_focused_examples.rb
# Check BDD specs for temporary focused examples
module Overcommit::Hook::PreCommit
  class NoFocusedExamples < Base
    def run
      errors = []
      focused = ['describe', 'context', 'it']
      applicable_files.each do |file|
        File.open(file, 'r').each_with_index do |line, index|
          focused.each do |block_name|
            if line.index("f#{block_name}(")
              relative = Pathname(file).relative_path_from(Pathname(Overcommit::Utils.repo_root))
              errors << "#{relative}:#{index} has focused #{block_name} block `f#{block_name}`"
            end
          end
        end
      end

      return :fail, errors.join("\n") if errors.any?

      :pass
    end
  end
end