Autolink package names in Cartfile

lib/gitlab/dependency_linker.rb

@@ -8,6 +8,7 @@ module Gitlab
       PodfileLinker,
       PodspecLinker,
       PodspecJsonLinker,
+      CartfileLinker,
     ].freeze
 
     def self.linker(blob_name)

lib/gitlab/dependency_linker/cartfile_linker.rb

+module Gitlab
+  module DependencyLinker
+    class CartfileLinker < MethodLinker
+      self.file_type = :cartfile
+
+      private
+
+      def link_dependencies
+        link_method_call(%w[github git binary]) do |value|
+          case value
+          when %r{\A#{REPO_REGEX}\z}
+            github_url(value)
+          when /\A#{URL_REGEX}\z/
+            value
+          end
+        end
+      end
+    end
+  end
+end

spec/lib/gitlab/dependency_linker/cartfile_linker_spec.rb

+require 'rails_helper'
+
+describe Gitlab::DependencyLinker::CartfileLinker, lib: true do
+  describe '.support?' do
+    it 'supports Cartfile' do
+      expect(described_class.support?('Cartfile')).to be_truthy
+    end
+
+    it 'supports Cartfile.private' do
+      expect(described_class.support?('Cartfile.private')).to be_truthy
+    end
+
+    it 'does not support other files' do
+      expect(described_class.support?('test.Cartfile')).to be_falsey
+    end
+  end
+
+  describe '#link' do
+    let(:file_name) { "Cartfile" }
+
+    let(:file_content) do
+      <<-CONTENT.strip_heredoc
+        # Require version 2.3.1 or later
+        github "ReactiveCocoa/ReactiveCocoa" >= 2.3.1
+
+        # Require version 1.x
+        github "Mantle/Mantle" ~> 1.0    # (1.0 or later, but less than 2.0)
+
+        # Require exactly version 0.4.1
+        github "jspahrsummers/libextobjc" == 0.4.1
+
+        # Use the latest version
+        github "jspahrsummers/xcconfigs"
+
+        # Use the branch
+        github "jspahrsummers/xcconfigs" "branch"
+
+        # Use a project from GitHub Enterprise
+        github "https://enterprise.local/ghe/desktop/git-error-translations"
+
+        # Use a project from any arbitrary server, on the "development" branch
+        git "https://enterprise.local/desktop/git-error-translations2.git" "development"
+
+        # Use a local project
+        git "file:///directory/to/project" "branch"
+
+        # A binary only framework
+        binary "https://my.domain.com/release/MyFramework.json" ~> 2.3
+      CONTENT
+    end
+
+    subject { Gitlab::Highlight.highlight(file_name, file_content) }
+
+    def link(name, url)
+      %{<a href="#{url}" rel="nofollow noreferrer noopener" target="_blank">#{name}</a>}
+    end
+
+    it 'links dependencies' do
+      expect(subject).to include(link('ReactiveCocoa/ReactiveCocoa', 'https://github.com/ReactiveCocoa/ReactiveCocoa'))
+      expect(subject).to include(link('Mantle/Mantle', 'https://github.com/Mantle/Mantle'))
+      expect(subject).to include(link('jspahrsummers/libextobjc', 'https://github.com/jspahrsummers/libextobjc'))
+      expect(subject).to include(link('jspahrsummers/xcconfigs', 'https://github.com/jspahrsummers/xcconfigs'))
+    end
+
+    it 'links Git repos' do
+      expect(subject).to include(link('https://enterprise.local/ghe/desktop/git-error-translations', 'https://enterprise.local/ghe/desktop/git-error-translations'))
+      expect(subject).to include(link('https://enterprise.local/desktop/git-error-translations2.git', 'https://enterprise.local/desktop/git-error-translations2.git'))
+    end
+
+    it 'links binary-only frameworks' do
+      expect(subject).to include(link('https://my.domain.com/release/MyFramework.json', 'https://my.domain.com/release/MyFramework.json'))
+    end
+  end
+end

spec/lib/gitlab/dependency_linker_spec.rb

@@ -57,5 +57,13 @@ describe Gitlab::DependencyLinker, lib: true do
 
       described_class.link(blob_name, nil, nil)
     end
+
+    it 'links using CartfileLinker' do
+      blob_name = 'Cartfile'
+
+      expect(described_class::CartfileLinker).to receive(:link)
+
+      described_class.link(blob_name, nil, nil)
+    end
   end
 end