Migrate recursive tree entries fetching to Gitaly

GITALY_SERVER_VERSION

-0.82.0
+0.85.0

Gemfile

@@ -411,7 +411,7 @@ group :ed25519 do
 end
 # Gitaly GRPC client
-gem 'gitaly-proto', '~> 0.84.0', require: 'gitaly'
+gem 'gitaly-proto', '~> 0.85.0', require: 'gitaly'
 # Locked until https://github.com/google/protobuf/issues/4210 is closed
 gem 'google-protobuf', '= 3.5.1'

Gemfile.lock

@@ -285,7 +285,7 @@ GEM
       po_to_json (>= 1.0.0)
       rails (>= 3.2.0)
     gherkin-ruby (0.3.2)
-    gitaly-proto (0.84.0)
+    gitaly-proto (0.85.0)
       google-protobuf (~> 3.1)
       grpc (~> 1.0)
     github-linguist (5.3.3)
@@ -1057,7 +1057,7 @@ DEPENDENCIES
   gettext (~> 3.2.2)
   gettext_i18n_rails (~> 1.8.0)
   gettext_i18n_rails_js (~> 1.2.0)
-  gitaly-proto (~> 0.84.0)
+  gitaly-proto (~> 0.85.0)
   github-linguist (~> 5.3.3)
   gitlab-flowdock-git-hook (~> 1.0.1)
   gitlab-markup (~> 1.6.2)

app/models/tree.rb

@@ -9,10 +9,9 @@ class Tree
     @repository = repository
     @sha = sha
     @path = path
-    @recursive = recursive
     git_repo = @repository.raw_repository
-    @entries = get_entries(git_repo, @sha, @path, recursive: @recursive)
+    @entries = Gitlab::Git::Tree.where(git_repo, @sha, @path, recursive)
   end
   def readme
@@ -58,21 +57,4 @@ class Tree
   def sorted_entries
     trees + blobs + submodules
   end
-
-  private
-
-  def get_entries(git_repo, sha, path, recursive: false)
-    current_path_entries = Gitlab::Git::Tree.where(git_repo, sha, path)
-    ordered_entries = []
-
-    current_path_entries.each do |entry|
-      ordered_entries << entry
-
-      if recursive && entry.dir?
-        ordered_entries.concat(get_entries(git_repo, sha, entry.path, recursive: true))
-      end
-    end
-
-    ordered_entries
-  end
 end

lib/gitlab/git/tree.rb

@@ -14,14 +14,14 @@ module Gitlab
         # Uses rugged for raw objects
         #
         # Gitaly migration: https://gitlab.com/gitlab-org/gitaly/issues/320
-        def where(repository, sha, path = nil)
+        def where(repository, sha, path = nil, recursive = false)
           path = nil if path == '' || path == '/'
           Gitlab::GitalyClient.migrate(:tree_entries) do |is_enabled|
             if is_enabled
-              repository.gitaly_commit_client.tree_entries(repository, sha, path)
+              repository.gitaly_commit_client.tree_entries(repository, sha, path, recursive)
             else
-              tree_entries_from_rugged(repository, sha, path)
+              tree_entries_from_rugged(repository, sha, path, recursive)
             end
           end
         end
@@ -57,7 +57,22 @@ module Gitlab
           end
         end
-        def tree_entries_from_rugged(repository, sha, path)
+        def tree_entries_from_rugged(repository, sha, path, recursive)
+          current_path_entries = get_tree_entries_from_rugged(repository, sha, path)
+          ordered_entries = []
+
+          current_path_entries.each do |entry|
+            ordered_entries << entry
+
+            if recursive && entry.dir?
+              ordered_entries.concat(tree_entries_from_rugged(repository, sha, entry.path, true))
+            end
+          end
+
+          ordered_entries
+        end
+
+        def get_tree_entries_from_rugged(repository, sha, path)
           commit = repository.lookup(sha)
           root_tree = commit.tree

lib/gitlab/gitaly_client/commit_service.rb

@@ -105,11 +105,12 @@ module Gitlab
         entry unless entry.oid.blank?
       end
-      def tree_entries(repository, revision, path)
+      def tree_entries(repository, revision, path, recursive)
         request = Gitaly::GetTreeEntriesRequest.new(
           repository: @gitaly_repo,
           revision: encode_binary(revision),
-          path: path.present? ? encode_binary(path) : '.'
+          path: path.present? ? encode_binary(path) : '.',
+          recursive: recursive
         )
         response = GitalyClient.call(@repository.storage, :commit_service, :get_tree_entries, request, timeout: GitalyClient.medium_timeout)

spec/lib/gitlab/gitaly_client/commit_service_spec.rb

@@ -113,7 +113,7 @@ describe Gitlab::GitalyClient::CommitService do
         .with(gitaly_request_with_path(storage_name, relative_path), kind_of(Hash))
         .and_return([])
-      client.tree_entries(repository, revision, path)
+      client.tree_entries(repository, revision, path, false)
     end
     context 'with UTF-8 params strings' do
@@ -126,7 +126,7 @@ describe Gitlab::GitalyClient::CommitService do
           .with(gitaly_request_with_path(storage_name, relative_path), kind_of(Hash))
           .and_return([])
-        client.tree_entries(repository, revision, path)
+        client.tree_entries(repository, revision, path, false)
       end
     end
   end