From 14b36f91d9d803850f59fe49961d6d6a9d540aab Mon Sep 17 00:00:00 2001
From: Artem Sidorenko <artem@posteo.de>
Date: Tue, 3 May 2016 17:33:43 +0200
Subject: [PATCH] Use the proper GitLab URL for links in Wiki

---
 CHANGELOG                           | 1 +
 app/models/project_wiki.rb          | 2 +-
 lib/gitlab/url_builder.rb           | 2 +-
 spec/lib/gitlab/url_builder_spec.rb | 2 +-
 spec/models/project_wiki_spec.rb    | 4 +++-
 5 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index 822fa4be565..b07b7da3300 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -36,6 +36,7 @@ v 8.8.0 (unreleased)
 
 v 8.7.4
   - Fix always showing build notification message when switching between merge requests
+  - Fix links on wiki pages for relative url setups. !4026 (Artem Sidorenko)
 
 v 8.7.3
   - Emails, Gitlab::Email::Message, Gitlab::Diff, and Premailer::Adapter::Nokogiri are now instrumented
diff --git a/app/models/project_wiki.rb b/app/models/project_wiki.rb
index 7c1a61bb0bf..c91cb70ae25 100644
--- a/app/models/project_wiki.rb
+++ b/app/models/project_wiki.rb
@@ -40,7 +40,7 @@ class ProjectWiki
   end
 
   def wiki_base_path
-    ["/", @project.path_with_namespace, "/wikis"].join('')
+    [Gitlab.config.gitlab.url, "/", @project.path_with_namespace, "/wikis"].join('')
   end
 
   # Returns the Gollum::Wiki object.
diff --git a/lib/gitlab/url_builder.rb b/lib/gitlab/url_builder.rb
index 2bbbd3074e8..67a09d5abf5 100644
--- a/lib/gitlab/url_builder.rb
+++ b/lib/gitlab/url_builder.rb
@@ -62,7 +62,7 @@ module Gitlab
     end
 
     def wiki_page_url
-      "#{Gitlab.config.gitlab.url}#{object.wiki.wiki_base_path}/#{object.slug}"
+      "#{object.wiki.wiki_base_path}/#{object.slug}"
     end
   end
 end
diff --git a/spec/lib/gitlab/url_builder_spec.rb b/spec/lib/gitlab/url_builder_spec.rb
index bf11472407a..c8d3bc01395 100644
--- a/spec/lib/gitlab/url_builder_spec.rb
+++ b/spec/lib/gitlab/url_builder_spec.rb
@@ -112,7 +112,7 @@ describe Gitlab::UrlBuilder, lib: true do
         wiki_page = build(:wiki_page)
         url = described_class.build(wiki_page)
 
-        expect(url).to eq "#{Gitlab.config.gitlab.url}#{wiki_page.wiki.wiki_base_path}/#{wiki_page.slug}"
+        expect(url).to eq "#{Gitlab.config.gitlab.url}/#{wiki_page.wiki.project.path_with_namespace}/wikis/#{wiki_page.slug}"
       end
     end
   end
diff --git a/spec/models/project_wiki_spec.rb b/spec/models/project_wiki_spec.rb
index 532e3f013fd..ea659f417f2 100644
--- a/spec/models/project_wiki_spec.rb
+++ b/spec/models/project_wiki_spec.rb
@@ -38,7 +38,9 @@ describe ProjectWiki, models: true do
 
   describe "#wiki_base_path" do
     it "returns the wiki base path" do
-      wiki_base_path = "/#{project.path_with_namespace}/wikis"
+      gitlab_url = Gitlab.config.gitlab.url
+      wiki_base_path = "#{gitlab_url}/#{project.path_with_namespace}/wikis"
+
       expect(subject.wiki_base_path).to eq(wiki_base_path)
     end
   end