Merge branch 'gitaly-set-config-2' into 'master'

Use Gitaly to set/unset git config, take 2

Closes gitaly#1241

See merge request gitlab-org/gitlab-ee!6458

ee/app/models/ee/repository.rb

@@ -11,17 +11,12 @@ module EE
     end
 
     # Transiently sets a configuration variable
-    # Gitaly migration: https://gitlab.com/gitlab-org/gitaly/issues/1241
     def with_config(values = {})
-      ::Gitlab::GitalyClient::StorageSettings.allow_disk_access do
-        values.each { |k, v| rugged.config[k] = v }
-      end
+      raw_repository.set_config(values)
 
       yield
     ensure
-      ::Gitlab::GitalyClient::StorageSettings.allow_disk_access do
-        values.keys.each { |key| rugged.config.delete(key) }
-      end
+      raw_repository.delete_config(*values.keys)
     end
 
     # Runs code after a repository has been synced.

ee/spec/models/repository_spec.rb

@@ -34,6 +34,39 @@ describe Repository do
     end
   end
 
+  describe '#with_config' do
+    let(:rugged) do
+      Gitlab::GitalyClient::StorageSettings.allow_disk_access do
+        repository.rugged
+      end
+    end
+    let(:entries) do
+      {
+        'test.foo1' => 'hello',
+        'test.foo2' => 'world',
+        'http.http://gitlab-primary.geo/gitlab-qa-sandbox-group/qa-test-10-07-2018-07-22-41/geo-project-ac55ec2cd134afea.wiki.git.extraHeader' => 'Authorization: blabla'
+      }
+    end
+
+    it 'sets config only during the block' do
+      keys_should_not_be_set
+
+      repository.with_config(entries) do
+        entries.each do |key, value|
+          expect(rugged.config[key]).to eq(value)
+        end
+      end
+
+      keys_should_not_be_set
+    end
+
+    def keys_should_not_be_set
+      entries.each do |key, value|
+        expect(rugged.config[key]).to be_blank
+      end
+    end
+  end
+
   describe "Elastic search", :elastic do
     before do
       stub_ee_application_setting(elasticsearch_search: true, elasticsearch_indexing: true)

ee/spec/services/geo/repository_sync_service_spec.rb

@@ -286,7 +286,11 @@ describe Geo::RepositorySyncService do
 
         subject.execute
 
-        expect(File.directory?(project.repository.path)).to be true
+        repo_path = Gitlab::GitalyClient::StorageSettings.allow_disk_access do
+          project.repository.path
+        end
+
+        expect(File.directory?(repo_path)).to be true
       end
 
       it 'tries to redownload repo when force_redownload flag is set' do