1 files changed, 40 insertions, 0 deletions
diff --git a/lib/gitlab/dependency_linker/parser/gemfile.rb b/lib/gitlab/dependency_linker/parser/gemfile.rb
new file mode 100644
index 00000000000..7f755375cea
--- /dev/null
+++ b/lib/gitlab/dependency_linker/parser/gemfile.rb
@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module DependencyLinker
+    module Parser
+      class Gemfile < MethodLinker
+        GIT_REGEX = Gitlab::DependencyLinker::GemfileLinker::GIT_REGEX
+        GITHUB_REGEX = Gitlab::DependencyLinker::GemfileLinker::GITHUB_REGEX
+
+        def initialize(plain_text)
+          @plain_text = plain_text
+        end
+
+        # Returns a list of Gitlab::DependencyLinker::Package
+        #
+        # keyword - The package definition keyword, e.g. `:gem` for
+        # Gemfile parsing, `:pod` for Podfile.
+        def parse(keyword:)
+          plain_lines.each_with_object([]) do |line, packages|
+            name = fetch(line, method_call_regex(keyword))
+
+            next unless name
+
+            git_ref = fetch(line, GIT_REGEX)
+            github_ref = fetch(line, GITHUB_REGEX)
+
+            packages << Gitlab::DependencyLinker::Package.new(name, git_ref, github_ref)
+          end
+        end
+
+        private
+
+        def fetch(line, regex, group: :name)
+          match = line.match(regex)
+          match[group] if match
+        end
+      end
+    end
+  end
+end