Reject blank environment vcariables in Gitlab::Git::RevList

Signed-off-by: Rémy Coutable <remy@rymai.me>

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/gitlab/git/rev_list.rb b/lib/gitlab/git/rev_list.rb
index 25e9d619697..79dd0cf7df2 100644
--- a/lib/gitlab/git/rev_list.rb
+++ b/lib/gitlab/git/rev_list.rb
@@ -22,7 +22,7 @@ module Gitlab
 
       def valid?
         environment_variables.all? do |(name, value)|
-          value.start_with?(project.repository.path_to_repo)
+          value.to_s.start_with?(project.repository.path_to_repo)
         end
       end
 
@@ -35,7 +35,7 @@ module Gitlab
       end
 
       def environment_variables
-        @environment_variables ||= env.slice(*ALLOWED_VARIABLES)
+        @environment_variables ||= env.slice(*ALLOWED_VARIABLES).compact
       end
     end
   end