1 files changed, 44 insertions, 0 deletions
diff --git a/lib/gitlab/dependency_linker/json_linker.rb b/lib/gitlab/dependency_linker/json_linker.rb
new file mode 100644
index 00000000000..a8ef25233d8
--- /dev/null
+++ b/lib/gitlab/dependency_linker/json_linker.rb
@@ -0,0 +1,44 @@
+module Gitlab
+  module DependencyLinker
+    class JsonLinker < BaseLinker
+      def link
+        return highlighted_text unless json
+
+        super
+      end
+
+      private
+
+      # Links package names in a JSON key or values.
+      #
+      # Example:
+      #   link_json('name')
+      #   # Will link `package` in `"name": "package"`
+      #
+      #   link_json('name', 'specific_package')
+      #   # Will link `specific_package` in `"name": "specific_package"`
+      #
+      #   link_json('name', /[^\/]+\/[^\/]+/)
+      #   # Will link `user/repo` in `"name": "user/repo"`, but not `"name": "package"`
+      #
+      #   link_json('specific_package', '1.0.1', link: :key)
+      #   # Will link `specific_package` in `"specific_package": "1.0.1"`
+      def link_json(key, value = nil, link: :value, &url_proc)
+        key = regexp_for_value(key, default: /[^" ]+/)
+        value = regexp_for_value(value, default: /[^" ]+/)
+
+        if link == :value
+          value = /(?<name>#{value})/
+        else
+          key = /(?<name>#{key})/
+        end
+
+        link_regex(/"#{key}":\s*"#{value}"/, &url_proc)
+      end
+
+      def json
+        @json ||= JSON.parse(plain_text) rescue nil
+      end
+    end
+  end
+end