Reload mr code on force push too

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/services/merge_requests/refresh_service.rb

@@ -3,6 +3,7 @@ module MergeRequests
     def execute(oldrev, newrev, ref)
       return true unless ref =~ /heads/
 
+      @oldrev, @newrev = oldrev, newrev
       @branch_name = ref.gsub("refs/heads/", "")
       @fork_merge_requests = @project.fork_merge_requests.opened
       @commits = @project.repository.commits_between(oldrev, newrev)
@@ -35,6 +36,10 @@ module MergeRequests
       end
     end
 
+    def force_push?
+      Gitlab::ForcePushCheck.force_push?(@project, @oldrev, @newrev)
+    end
+
     # Refresh merge request diff if we push to source or target branch of merge request
     # Note: we should update merge requests from forks too
     def reload_merge_requests
@@ -44,7 +49,7 @@ module MergeRequests
 
       merge_requests.each do |merge_request|
 
-        if merge_request.source_branch == @branch_name
+        if merge_request.source_branch == @branch_name || force_push?
           merge_request.reload_code
           merge_request.mark_as_unchecked
         else

lib/gitlab/force_push_check.rb

@@ -0,0 +1,15 @@
+module Gitlab
+  class ForcePushCheck
+    def self.force_push?(project, oldrev, newrev)
+      return false if project.empty_repo?
+
+      if oldrev != Gitlab::Git::BLANK_SHA && newrev != Gitlab::Git::BLANK_SHA
+        missed_refs = IO.popen(%W(git --git-dir=#{project.repository.path_to_repo} rev-list #{oldrev} ^#{newrev})).read
+        missed_refs.split("\n").size > 0
+      else
+        false
+      end
+    end
+  end
+end
+

lib/gitlab/git_access.rb

@@ -94,14 +94,7 @@ module Gitlab
     end
 
     def forced_push?(project, oldrev, newrev)
-      return false if project.empty_repo?
-
-      if oldrev != Gitlab::Git::BLANK_SHA && newrev != Gitlab::Git::BLANK_SHA
-        missed_refs = IO.popen(%W(git --git-dir=#{project.repository.path_to_repo} rev-list #{oldrev} ^#{newrev})).read
-        missed_refs.split("\n").size > 0
-      else
-        false
-      end
+      Gitlab::ForcePushCheck.force_push?(project, oldrev, newrev)
     end
 
     private