Create a new /templates API namespace

The /licenses, /gitignores and /gitlab_ci_ymls endpoints are now also
available under a new /templates namespace. Old endpoints will be
deprecated when GitLab 9.0.0 is released.

1 files changed, 100 insertions, 24 deletions

diff --git a/lib/api/templates.rb b/lib/api/templates.rb
index b9e718147e1..8a53d9c0095 100644
--- a/lib/api/templates.rb
+++ b/lib/api/templates.rb
@@ -1,39 +1,115 @@
 module API
   class Templates < Grape::API
     GLOBAL_TEMPLATE_TYPES = {
-      gitignores:     Gitlab::Template::GitignoreTemplate,
-      gitlab_ci_ymls: Gitlab::Template::GitlabCiYmlTemplate
+      gitignores: {
+        klass: Gitlab::Template::GitignoreTemplate,
+        gitlab_version: 8.8
+      },
+      gitlab_ci_ymls: {
+        klass: Gitlab::Template::GitlabCiYmlTemplate,
+        gitlab_version: 8.9
+      }
     }.freeze
+    PROJECT_TEMPLATE_REGEX =
+      /[\<\{\[]
+        (project|description|
+        one\sline\s.+\swhat\sit\sdoes\.) # matching the start and end is enough here
+      [\>\}\]]/xi.freeze
+    YEAR_TEMPLATE_REGEX = /[<{\[](year|yyyy)[>}\]]/i.freeze
+    FULLNAME_TEMPLATE_REGEX =
+      /[\<\{\[]
+        (fullname|name\sof\s(author|copyright\sowner))
+      [\>\}\]]/xi.freeze
+    DEPRECATION_MESSAGE = ' This endpoint is deprecated and will be removed in GitLab 9.0.'.freeze
 
     helpers do
+      def parsed_license_template
+        # We create a fresh Licensee::License object since we'll modify its
+        # content in place below.
+        template = Licensee::License.new(params[:name])
+
+        template.content.gsub!(YEAR_TEMPLATE_REGEX, Time.now.year.to_s)
+        template.content.gsub!(PROJECT_TEMPLATE_REGEX, params[:project]) if params[:project].present?
+
+        fullname = params[:fullname].presence || current_user.try(:name)
+        template.content.gsub!(FULLNAME_TEMPLATE_REGEX, fullname) if fullname
+        template
+      end
+
       def render_response(template_type, template)
         not_found!(template_type.to_s.singularize) unless template
         present template, with: Entities::Template
       end
     end
 
-    GLOBAL_TEMPLATE_TYPES.each do |template_type, klass|
-      # Get the list of the available template
-      #
-      # Example Request:
-      #   GET /gitignores
-      #   GET /gitlab_ci_ymls
-      get template_type.to_s do
-        present klass.all, with: Entities::TemplatesList
-      end
-
-      # Get the text for a specific template present in local filesystem
-      #
-      # Parameters:
-      #   name (required) - The name of a template
-      #
-      # Example Request:
-      #   GET /gitignores/Elixir
-      #   GET /gitlab_ci_ymls/Ruby
-      get "#{template_type}/:name" do
-        required_attributes! [:name]
-        new_template = klass.find(params[:name])
-        render_response(template_type, new_template)
+    { "licenses" => :deprecated, "templates/licenses" => :ok }.each do |route, status|
+      desc 'Get the list of the available license template' do
+        detailed_desc = 'This feature was introduced in GitLab 8.7.'
+        detailed_desc << DEPRECATION_MESSAGE unless status == :ok
+        detail detailed_desc
+        success Entities::RepoLicense
+      end
+      params do
+        optional :popular, type: Boolean, desc: 'If passed, returns only popular licenses'
+      end 
+      get route do
+        options = {
+          featured: declared(params).popular.present? ? true : nil
+        }
+        present Licensee::License.all(options), with: Entities::RepoLicense
+      end
+    end
+
+    { "licenses/:name" => :deprecated, "templates/licenses/:name" => :ok }.each do |route, status|
+      desc 'Get the text for a specific license' do
+        detailed_desc = 'This feature was introduced in GitLab 8.7.'
+        detailed_desc << DEPRECATION_MESSAGE unless status == :ok
+        detail detailed_desc
+        success Entities::RepoLicense
+      end
+      params do
+        requires :name, type: String, desc: 'The name of the template'
+      end 
+      get route, requirements: { name: /[\w\.-]+/ } do
+        not_found!('License') unless Licensee::License.find(declared(params).name)
+
+        template = parsed_license_template
+
+        present template, with: Entities::RepoLicense
+      end
+    end
+      
+    GLOBAL_TEMPLATE_TYPES.each do |template_type, properties|
+      klass = properties[:klass]
+      gitlab_version = properties[:gitlab_version]
+
+      { template_type => :deprecated, "templates/#{template_type}" => :ok }.each do |route, status|
+        desc 'Get the list of the available template' do
+          detailed_desc = "This feature was introduced in GitLab #{gitlab_version}."
+          detailed_desc << DEPRECATION_MESSAGE unless status == :ok
+          detail detailed_desc
+          success Entities::TemplatesList
+        end
+        get route do
+          present klass.all, with: Entities::TemplatesList
+        end
+      end
+
+      { "#{template_type}/:name" => :deprecated, "templates/#{template_type}/:name" => :ok }.each do |route, status|
+        desc 'Get the text for a specific template present in local filesystem' do
+          detailed_desc = "This feature was introduced in GitLab #{gitlab_version}."
+          detailed_desc << DEPRECATION_MESSAGE unless status == :ok
+          detail detailed_desc
+          success Entities::Template
+        end
+        params do
+          requires :name, type: String, desc: 'The name of the template'
+        end 
+        get route do
+          new_template = klass.find(declared(params).name)
+
+          render_response(template_type, new_template)
+        end
       end
     end
   end