1 files changed, 31 insertions, 0 deletions
diff --git a/lib/gitlab/dependency_linker/gemfile_linker.rb b/lib/gitlab/dependency_linker/gemfile_linker.rb
new file mode 100644
index 00000000000..45be760d89e
--- /dev/null
+++ b/lib/gitlab/dependency_linker/gemfile_linker.rb
@@ -0,0 +1,31 @@
+module Gitlab
+  module DependencyLinker
+    class GemfileLinker < BaseLinker
+      def self.support?(blob_name)
+        blob_name == 'Gemfile' || blob_name == 'gems.rb'
+      end
+
+      private
+
+      def link_dependencies
+        # Link `gem "package_name"` to https://rubygems.org/gems/package_name
+        link_method_call("gem")
+
+        # Link `github: "user/repo"` to https://github.com/user/repo
+        link_regex(/(github:|:github\s*=>)\s*['"](?<name>[^'"]+)['"]/) do |name|
+          "https://github.com/#{name}"
+        end
+
+        # Link `git: "https://gitlab.example.com/user/repo"` to https://gitlab.example.com/user/repo
+        link_regex(%r{(git:|:git\s*=>)\s*['"](?<name>https?://[^'"]+)['"]}) { |url| url }
+
+        # Link `source "https://rubygems.org"` to https://rubygems.org
+        link_method_call("source", %r{https?://[^'"]+}) { |url| url }
+      end
+
+      def package_url(name)
+        "https://rubygems.org/gems/#{name}"
+      end
+    end
+  end
+end