Merge branch 'fix/project-wiki-ending' into 'master'

Fix for project paths ending in .wiki

This prevents `Git operation was rejected by pre-receive hook` when
an actual project ending with .wiki is thought to be a wiki by the
`Internal` API.

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/13742

See merge request !2960

CHANGELOG

@@ -2,6 +2,7 @@ Please view this file on the master branch, on stable branches it's out of date.
 
 v 8.6.0 (unreleased)
   - Improve the formatting for the user page bio (Connor Shea)
+  - Fix issue when pushing to projects ending in .wiki
   - Fix avatar stretching by providing a cropping feature (Johann Pardanaud)
   - Strip leading and trailing spaces in URL validator (evuez)
   - Update documentation to reflect Guest role not being enforced on internal projects

lib/api/internal.rb

@@ -14,6 +14,14 @@ module API
       #   ref - branch name
       #   forced_push - forced_push
       #
+
+      helpers do
+        def wiki?
+          @wiki ||= params[:project].end_with?('.wiki') &&
+            !Project.find_with_namespace(params[:project])
+        end
+      end
+
       post "/allowed" do
         status 200
 
@@ -30,13 +38,12 @@ module API
         # Strip out the .wiki from the pathname before finding the
         # project. This applies the correct project permissions to
         # the wiki repository as well.
-        wiki = project_path.end_with?('.wiki')
-        project_path.chomp!('.wiki') if wiki
+        project_path.chomp!('.wiki') if wiki?
 
         project = Project.find_with_namespace(project_path)
 
         access =
-          if wiki
+          if wiki?
             Gitlab::GitAccessWiki.new(actor, project)
           else
             Gitlab::GitAccess.new(actor, project)

spec/requests/api/internal_spec.rb

@@ -54,6 +54,18 @@ describe API::API, api: true  do
         project.team << [user, :developer]
       end
 
+      context "git push with project.wiki" do
+        it 'responds with success' do
+          project_wiki = create(:project, name: 'my.wiki', path: 'my.wiki')
+          project_wiki.team << [user, :developer]
+
+          push(key, project_wiki)
+
+          expect(response.status).to eq(200)
+          expect(json_response["status"]).to be_truthy
+        end
+      end
+
       context "git pull" do
         it do
           pull(key, project)