Module: Tools::CoverClonedTree

Defined in:
lib/deep_cover/cover_cloned_tree.rb

Instance Method Summary collapse

Instance Method Details

#cover_cloned_tree(original_paths, original_root:, clone_root:) ⇒ Object

&block



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# File 'lib/deep_cover/cover_cloned_tree.rb', line 8

def cover_cloned_tree(original_paths, original_root:, clone_root:) # &block
  # Make sure the directories end with a '/' for safe replacing
  original_root = File.join(File.expand_path(original_root), '')
  clone_root = File.join(File.expand_path(clone_root), '')

  paths_with_bad_syntax = []
  original_paths, paths_not_in_root = original_paths.partition { |path| path.start_with?(original_root) }

  original_paths.each.with_progress(title: 'Rewriting') do |original_path|
    clone_path = Pathname(original_path.sub(original_root, clone_root))
    begin
      source = clone_path.read
      # We need to use the original_path so that the tracker_paths inserted in the files
      # during the instrumentation are for the original paths
      covered_code = DeepCover.coverage.covered_code(original_path, source: source)
    rescue Parser::SyntaxError
      paths_with_bad_syntax << original_path
      next
    end

    # Allow a passed block to edit the source that will be written
    covered_source = covered_code.covered_source
    covered_source = yield covered_source, original_path, clone_path if block_given?

    clone_path.dirname.mkpath
    clone_path.write(covered_source)
  end

  unless paths_with_bad_syntax.empty?
    warn [
           "#{paths_with_bad_syntax.size} files could not be instrumented because of syntax errors:",
           *paths_with_bad_syntax.first(3),
           ('...' if paths_with_bad_syntax.size > 3),
         ].compact.join("\n")
  end

  unless paths_not_in_root.empty?
    warn [
           "#{paths_not_in_root.size} files could not be instrumented because they are not within the directory being cloned.",
           "(Consider configuring DeepCover's paths to to avoid those files being included)",
           *paths_not_in_root.first(5),
           ('...' if paths_not_in_root.size > 5),
         ].compact.join("\n")
  end

  nil
end