1 files changed, 27 insertions, 26 deletions

diff --git a/app/models/repository.rb b/app/models/repository.rb
index 165dafd83fd..552a354d1ce 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -19,6 +19,7 @@ class Repository
   attr_accessor :full_path, :disk_path, :project, :is_wiki
 
   delegate :ref_name_for_sha, to: :raw_repository
+  delegate :write_ref, to: :raw_repository
 
   CreateTreeError = Class.new(StandardError)
 
@@ -37,7 +38,7 @@ class Repository
                       issue_template_names merge_request_template_names).freeze
 
   # Methods that use cache_method but only memoize the value
-  MEMOIZED_CACHED_METHODS = %i(license empty_repo?).freeze
+  MEMOIZED_CACHED_METHODS = %i(license).freeze
 
   # Certain method caches should be refreshed when certain types of files are
   # changed. This Hash maps file types (as returned by Gitlab::FileDetector) to
@@ -237,11 +238,10 @@ class Repository
 
     # This will still fail if the file is corrupted (e.g. 0 bytes)
     begin
-      write_ref(keep_around_ref_name(sha), sha)
-    rescue Rugged::ReferenceError => ex
-      Rails.logger.error "Unable to create #{REF_KEEP_AROUND} reference for repository #{path}: #{ex}"
-    rescue Rugged::OSError => ex
-      raise unless ex.message =~ /Failed to create locked file/ && ex.message =~ /File exists/
+      write_ref(keep_around_ref_name(sha), sha, force: true)
+    rescue Gitlab::Git::Repository::GitError => ex
+      # Necessary because https://gitlab.com/gitlab-org/gitlab-ce/issues/20156
+      return true if ex.message =~ /Failed to create locked file/ && ex.message =~ /File exists/
 
       Rails.logger.error "Unable to create #{REF_KEEP_AROUND} reference for repository #{path}: #{ex}"
     end
@@ -251,12 +251,8 @@ class Repository
     ref_exists?(keep_around_ref_name(sha))
   end
 
-  def write_ref(ref_path, sha)
-    rugged.references.create(ref_path, sha, force: true)
-  end
-
   def diverging_commit_counts(branch)
-    root_ref_hash = raw_repository.rev_parse_target(root_ref).oid
+    root_ref_hash = raw_repository.commit(root_ref).id
     cache.fetch(:"diverging_commit_counts_#{branch.name}") do
       # Rugged seems to throw a `ReferenceError` when given branch_names rather
       # than SHA-1 hashes
@@ -497,7 +493,11 @@ class Repository
   end
   cache_method :exists?
 
-  delegate :empty?, to: :raw_repository
+  def empty?
+    return true unless exists?
+
+    !has_visible_content?
+  end
   cache_method :empty?
 
   # The size of this repository in megabytes.
@@ -686,7 +686,9 @@ class Repository
 
   def tags_sorted_by(value)
     case value
-    when 'name'
+    when 'name_asc'
+      VersionSorter.sort(tags) { |tag| tag.name }
+    when 'name_desc'
       VersionSorter.rsort(tags) { |tag| tag.name }
     when 'updated_desc'
       tags_sorted_by_committed_date.reverse
@@ -697,10 +699,14 @@ class Repository
     end
   end
 
-  def contributors
+  # Params:
+  #
+  # order_by: name|email|commits
+  # sort: asc|desc default: 'asc'
+  def contributors(order_by: nil, sort: 'asc')
     commits = self.commits(nil, limit: 2000, offset: 0, skip_merges: true)
 
-    commits.group_by(&:author_email).map do |email, commits|
+    commits = commits.group_by(&:author_email).map do |email, commits|
       contributor = Gitlab::Contributor.new
       contributor.email = email
 
@@ -714,6 +720,7 @@ class Repository
 
       contributor
     end
+    Commit.order_by(collection: commits, order_by: order_by, sort: sort)
   end
 
   def refs_contains_sha(ref_type, sha)
@@ -927,7 +934,7 @@ class Repository
   def merge_base(first_commit_id, second_commit_id)
     first_commit_id = commit(first_commit_id).try(:id) || first_commit_id
     second_commit_id = commit(second_commit_id).try(:id) || second_commit_id
-    rugged.merge_base(first_commit_id, second_commit_id)
+    raw_repository.merge_base(first_commit_id, second_commit_id)
   rescue Rugged::ReferenceError
     nil
   end
@@ -944,13 +951,8 @@ class Repository
     end
   end
 
-  def empty_repo?
-    !exists? || !has_visible_content?
-  end
-  cache_method :empty_repo?, memoize_only: true
-
   def search_files_by_content(query, ref)
-    return [] if empty_repo? || query.blank?
+    return [] if empty? || query.blank?
 
     offset = 2
     args = %W(grep -i -I -n --before-context #{offset} --after-context #{offset} -E -e #{Regexp.escape(query)} #{ref || root_ref})
@@ -959,7 +961,7 @@ class Repository
   end
 
   def search_files_by_name(query, ref)
-    return [] if empty_repo? || query.blank?
+    return [] if empty? || query.blank?
 
     args = %W(ls-tree --full-tree -r #{ref || root_ref} --name-status | #{Regexp.escape(query)})
 
@@ -972,8 +974,7 @@ class Repository
       tmp_remote_name = true
     end
 
-    add_remote(remote_name, url)
-    set_remote_as_mirror(remote_name, refmap: refmap)
+    add_remote(remote_name, url, mirror_refmap: refmap)
     fetch_remote(remote_name, forced: forced)
   ensure
     remove_remote(remote_name) if tmp_remote_name
@@ -996,7 +997,7 @@ class Repository
   end
 
   def create_ref(ref, ref_path)
-    raw_repository.write_ref(ref_path, ref)
+    write_ref(ref_path, ref)
   end
 
   def ls_files(ref)