Fire update hook from GitLab

CHANGELOG

@@ -7,6 +7,7 @@ v 8.3.0 (unreleased)
   - Fix 500 error when update group member permission
   - Fix: Raw private snippets access workflow
   - Trim leading and trailing whitespace of milestone and issueable titles (Jose Corcuera)
+  - Fire update hook from GitLab
 v 8.2.1
   - Forcefully update builds that didn't want to update with state machine

app/models/repository.rb

@@ -571,9 +571,13 @@ class Repository
     # Run GitLab pre-receive hook
     pre_receive_hook = Gitlab::Git::Hook.new('pre-receive', path_to_repo)
-    status = pre_receive_hook.trigger(gl_id, oldrev, newrev, ref)
-    if status
+    pre_receive_hook_status = pre_receive_hook.trigger(gl_id, oldrev, newrev, ref)
+    # Run GitLab update hook
+    update_hook = Gitlab::Git::Hook.new('update', path_to_repo)
+    update_hook_status = update_hook.trigger(gl_id, oldrev, newrev, ref)
+
+    if pre_receive_hook_status && update_hook_status
       if was_empty
         # Create branch
         rugged.references.create(ref, newrev)
@@ -596,7 +600,7 @@ class Repository
       # Remove tmp ref and return error to user
       rugged.references.delete(tmp_ref)
-      raise PreReceiveError.new('Commit was rejected by pre-receive hook')
+      raise PreReceiveError.new('Commit was rejected by git hook')
     end
   end

lib/gitlab/git/hook.rb

@@ -16,6 +16,17 @@ module Gitlab
       def trigger(gl_id, oldrev, newrev, ref)
         return true unless exists?
+        case name
+        when "pre-receive", "post-receive"
+          call_receive_hook(gl_id, oldrev, newrev, ref)
+        when "update"
+          call_update_hook(gl_id, oldrev, newrev, ref)
+        end
+      end
+
+      private
+
+      def call_receive_hook(gl_id, oldrev, newrev, ref)
         changes = [oldrev, newrev, ref].join(" ")
         # function  will return true if succesful
@@ -54,6 +65,12 @@ module Gitlab
         exit_status
       end
+
+      def call_update_hook(gl_id, oldrev, newrev, ref)
+        Dir.chdir(repo_path) do
+          system({ 'GL_ID' => gl_id }, path, ref, oldrev, newrev)
+        end
+      end
     end
   end
 end