Class: Danger::PluginFileResolver

Inherits:
Object
  • Object
show all
Defined in:
lib/danger/plugin_support/plugin_file_resolver.rb

Instance Method Summary collapse

Constructor Details

#initialize(references) ⇒ PluginFileResolver

Takes an array of files, gems or nothing, then resolves them into paths that should be sent into the documentation parser



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# File 'lib/danger/plugin_support/plugin_file_resolver.rb', line 9

def initialize(references)
  @refs = references
end

Instance Method Details

#resolve ⇒ Object 



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# File 'lib/danger/plugin_support/plugin_file_resolver.rb', line 13

def resolve
  # When given existing paths, map to absolute & existing paths
  if !@refs.nil? and @refs.select { |ref| File.file? ref }.any?
    paths = @refs.select { |ref| File.file? ref }.map { |path| File.expand_path(path) }
    { paths: paths, gems: [] }

  # When given a list of gems
  elsif @refs and @refs.kind_of? Array
    Bundler.with_clean_env do
      # We don't use the block syntax as we want it to persist until the OS cleans it on reboot
      # or whatever, it needs to persist outside this scope.
      dir = Dir.mktmpdir

      Dir.chdir(dir) do
        gem_names = @refs
        gemfile = File.new("Gemfile", "w")
        gemfile.write "source 'https://rubygems.org'"

        gem_names.each do |plugin|
          gemfile.write "\ngem '#{plugin}'"
        end

        gemfile.close
        `bundle install --path vendor/gems`

        # the paths are relative to our current Chdir
        relative_paths = gem_names.flat_map { |plugin| Dir.glob("vendor/gems/ruby/*/gems/#{plugin}*/lib/**/**/**/**.rb") }
        paths = relative_paths.map { |path| File.join(dir, path) }

        spec_paths = gem_names.flat_map { |plugin| Dir.glob("vendor/gems/ruby/*/specifications/#{plugin}*.gemspec").first }
        real_gems = spec_paths.map { |path| Gem::Specification.load path }

        plugin_metadata = real_gems.map do |gem|
          {
            name: gem.name,
            gem: gem.name,
            author: gem.authors,
            url: gem.homepage,
            description: gem.summary,
            license: gem.license || "Unknown",
            version: gem.version.to_s
          }
        end
        { paths: paths, gems: plugin_metadata }
      end
    end
  # When empty, imply you want to test the current lib folder as a plugin
  else
    paths = Dir.glob(File.join(".", "lib/**/*.rb")).map { |path| File.expand_path(path) }
    { paths: paths, gems: [] }
  end
end