Merge branch 'master' into 'patch-73-move-storage-shards'patch-73-move-storage-shards

# Conflicts:
#   app/models/project.rb
#   spec/models/project_spec.rb

1 files changed, 6 insertions, 1 deletions

diff --git a/app/models/commit.rb b/app/models/commit.rb
index 0889ce7e287..1470b50f396 100644
--- a/app/models/commit.rb
+++ b/app/models/commit.rb
@@ -35,6 +35,7 @@ class Commit
 
   MIN_SHA_LENGTH = Gitlab::Git::Commit::MIN_SHA_LENGTH
   COMMIT_SHA_PATTERN = /\h{#{MIN_SHA_LENGTH},40}/.freeze
+  EXACT_COMMIT_SHA_PATTERN = /\A#{COMMIT_SHA_PATTERN}\z/.freeze
   # Used by GFM to match and present link extensions on node texts and hrefs.
   LINK_EXTENSION_PATTERN = /(patch)/.freeze
 
@@ -90,7 +91,7 @@ class Commit
     end
 
     def valid_hash?(key)
-      !!(/\A#{COMMIT_SHA_PATTERN}\z/ =~ key)
+      !!(EXACT_COMMIT_SHA_PATTERN =~ key)
     end
 
     def lazy(project, oid)
@@ -139,6 +140,10 @@ class Commit
     '@'
   end
 
+  def self.reference_valid?(reference)
+    !!(reference =~ EXACT_COMMIT_SHA_PATTERN)
+  end
+
   # Pattern used to extract commit references from text
   #
   # This pattern supports cross-project references.