Implement GetCommitSignatures RPC

Closes #1047

13 files changed, 602 insertions, 222 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5e6cc8d19..1663d1d98 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Gitaly changelog
 
+UNRELEASED
+
+- Implement GetCommitSignatures RPC
+  https://gitlab.com/gitlab-org/gitaly/merge_requests/609
+
 [v0.86.0](https://gitlab.com/gitlab-org/gitaly/tags/v0.86.0)
 
 - Implement BlobService.GetAllLfsPointers
diff --git a/internal/service/commit/commit_signatures.go b/internal/service/commit/commit_signatures.go
new file mode 100644
index 000000000..0be45f5ba
--- /dev/null
+++ b/internal/service/commit/commit_signatures.go
@@ -0,0 +1,57 @@
+package commit
+
+import (
+	"fmt"
+
+	"gitlab.com/gitlab-org/gitaly/internal/rubyserver"
+
+	pb "gitlab.com/gitlab-org/gitaly-proto/go"
+
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+func (s *server) GetCommitSignatures(request *pb.GetCommitSignaturesRequest, stream pb.CommitService_GetCommitSignaturesServer) error {
+	if err := validateGetCommitSignaturesRequest(request); err != nil {
+		return status.Errorf(codes.InvalidArgument, "GetCommitSignatures: %v", err)
+	}
+
+	ctx := stream.Context()
+
+	client, err := s.CommitServiceClient(ctx)
+	if err != nil {
+		return err
+	}
+
+	clientCtx, err := rubyserver.SetHeaders(ctx, request.GetRepository())
+	if err != nil {
+		return err
+	}
+
+	rubyStream, err := client.GetCommitSignatures(clientCtx, request)
+	if err != nil {
+		return err
+	}
+
+	return rubyserver.Proxy(func() error {
+		resp, err := rubyStream.Recv()
+		if err != nil {
+			md := rubyStream.Trailer()
+			stream.SetTrailer(md)
+			return err
+		}
+		return stream.Send(resp)
+	})
+}
+
+func validateGetCommitSignaturesRequest(request *pb.GetCommitSignaturesRequest) error {
+	if request.GetRepository() == nil {
+		return fmt.Errorf("empty Repository")
+	}
+
+	if len(request.GetCommitIds()) == 0 {
+		return fmt.Errorf("empty CommitIds")
+	}
+
+	return nil
+}
diff --git a/internal/service/commit/commit_signatures_test.go b/internal/service/commit/commit_signatures_test.go
new file mode 100644
index 000000000..79f7b2d1c
--- /dev/null
+++ b/internal/service/commit/commit_signatures_test.go
@@ -0,0 +1,134 @@
+package commit
+
+import (
+	"io"
+	"testing"
+
+	"gitlab.com/gitlab-org/gitaly/internal/testhelper"
+
+	pb "gitlab.com/gitlab-org/gitaly-proto/go"
+
+	"github.com/stretchr/testify/require"
+	"google.golang.org/grpc/codes"
+)
+
+func TestSuccessfulGetCommitSignaturesRequest(t *testing.T) {
+	server, serverSocketPath := startTestServices(t)
+	defer server.Stop()
+
+	client, conn := newCommitServiceClient(t, serverSocketPath)
+	defer conn.Close()
+
+	testRepo, _, cleanupFn := testhelper.NewTestRepo(t)
+	defer cleanupFn()
+
+	ctx, cancel := testhelper.Context()
+	defer cancel()
+
+	request := &pb.GetCommitSignaturesRequest{
+		Repository: testRepo,
+		CommitIds: []string{
+			"5937ac0a7beb003549fc5fd26fc247adbce4a52e", // has signature
+			"e63f41fe459e62e1228fcef60d7189127aeba95a", // has no signature
+			"0000000000000000000000000000000000000000", // does not exist
+			"a17a9f66543673edf0a3d1c6b93bdda3fe600f32", // has signature
+		},
+	}
+
+	c, err := client.GetCommitSignatures(ctx, request)
+	require.NoError(t, err)
+
+	expectedSignautes := []*pb.GetCommitSignaturesResponse{
+		{
+			CommitId:   "5937ac0a7beb003549fc5fd26fc247adbce4a52e",
+			Signature:  testhelper.MustReadFile(t, "testdata/commit-5937ac0a7beb003549fc5fd26fc247adbce4a52e-signature"),
+			SignedText: testhelper.MustReadFile(t, "testdata/commit-5937ac0a7beb003549fc5fd26fc247adbce4a52e-signed-text"),
+		},
+		{
+			CommitId:   "a17a9f66543673edf0a3d1c6b93bdda3fe600f32",
+			Signature:  testhelper.MustReadFile(t, "testdata/gitlab-test-commit-a17a9f66543673edf0a3d1c6b93bdda3fe600f32-signature"),
+			SignedText: testhelper.MustReadFile(t, "testdata/gitlab-test-commit-a17a9f66543673edf0a3d1c6b93bdda3fe600f32-signed-text"),
+		},
+	}
+	fetchedSignatures := readAllSignaturesFromClient(t, c)
+
+	require.Equal(t, expectedSignautes, fetchedSignatures)
+}
+
+func TestFailedGetCommitSignaturesRequest(t *testing.T) {
+	server, serverSocketPath := startTestServices(t)
+	defer server.Stop()
+
+	client, conn := newCommitServiceClient(t, serverSocketPath)
+	defer conn.Close()
+
+	testRepo, _, cleanupFn := testhelper.NewTestRepo(t)
+	defer cleanupFn()
+
+	testCases := []struct {
+		desc    string
+		request *pb.GetCommitSignaturesRequest
+		code    codes.Code
+	}{
+		{
+			desc: "empty Repository",
+			request: &pb.GetCommitSignaturesRequest{
+				Repository: nil,
+				CommitIds:  []string{"5937ac0a7beb003549fc5fd26fc247adbce4a52e"},
+			},
+			code: codes.InvalidArgument,
+		},
+		{
+			desc: "empty CommitIds",
+			request: &pb.GetCommitSignaturesRequest{
+				Repository: testRepo,
+				CommitIds:  []string{},
+			},
+			code: codes.InvalidArgument,
+		},
+	}
+
+	for _, testCase := range testCases {
+		t.Run(testCase.desc, func(t *testing.T) {
+			ctx, cancel := testhelper.Context()
+			defer cancel()
+
+			c, err := client.GetCommitSignatures(ctx, testCase.request)
+			require.NoError(t, err)
+
+			for {
+				_, err = c.Recv()
+				if err != nil {
+					break
+				}
+			}
+
+			testhelper.AssertGrpcError(t, err, testCase.code, "")
+		})
+	}
+}
+
+func readAllSignaturesFromClient(t *testing.T, c pb.CommitService_GetCommitSignaturesClient) (signatures []*pb.GetCommitSignaturesResponse) {
+	for {
+		resp, err := c.Recv()
+		if err == io.EOF {
+			break
+		}
+		require.NoError(t, err)
+
+		if resp.CommitId != "" {
+			signatures = append(signatures, resp)
+			// first message contains either Signature or SignedText so no need to append anything
+			continue
+		}
+
+		currentSignature := signatures[len(signatures)-1]
+		if len(resp.Signature) != 0 {
+			currentSignature.Signature = append(currentSignature.Signature, resp.Signature...)
+		} else if len(resp.SignedText) != 0 {
+			currentSignature.SignedText = append(currentSignature.SignedText, resp.SignedText...)
+		}
+	}
+
+	return
+}
diff --git a/internal/service/commit/testdata/gitlab-test-commit-a17a9f66543673edf0a3d1c6b93bdda3fe600f32-signature b/internal/service/commit/testdata/gitlab-test-commit-a17a9f66543673edf0a3d1c6b93bdda3fe600f32-signature
new file mode 100644
index 000000000..61a8d3561
--- /dev/null
+++ b/internal/service/commit/testdata/gitlab-test-commit-a17a9f66543673edf0a3d1c6b93bdda3fe600f32-signature
@@ -0,0 +1,8 @@
+-----BEGIN PGP SIGNATURE-----
+
+iJwEAAEIAAYFAlmmbf0ACgkQv52SX5Ee/WVv1gP/WrjclOc3CYiTrTgNuxs/vyXl
+PtUrxbOYEpQtRV+id/agJgaJWKoHRYUoXSGBuykijsND43PMkrjfZiF2SbE0j0CS
+7oukSx83us+y/hn+ecZQG0OkrBZ2vQ9gHGbEN9RFyZXfgWtRcgqFnFZUxCznhzzk
+njAjb08aUpn9r8WHsdU=
+=HLte
+-----END PGP SIGNATURE-----
\ No newline at end of file
diff --git a/internal/service/commit/testdata/gitlab-test-commit-a17a9f66543673edf0a3d1c6b93bdda3fe600f32-signed-text b/internal/service/commit/testdata/gitlab-test-commit-a17a9f66543673edf0a3d1c6b93bdda3fe600f32-signed-text
new file mode 100644
index 000000000..a7e7a8eb4
--- /dev/null
+++ b/internal/service/commit/testdata/gitlab-test-commit-a17a9f66543673edf0a3d1c6b93bdda3fe600f32-signed-text
@@ -0,0 +1,6 @@
+tree 86ec18bfe87ad42a782fdabd8310f9b7ac750f51
+parent 3c1d9a0266cb0c62d926f4a6c649beed561846f5
+author Bette Cartwright <bette.cartwright@example.net> 1504079357 +0200
+committer Bette Cartwright <bette.cartwright@example.net> 1504079357 +0200
+
+signed and authored commit by bette cartwright, different email
diff --git a/ruby/Gemfile b/ruby/Gemfile
index 9744bbb65..51ab3096f 100644
--- a/ruby/Gemfile
+++ b/ruby/Gemfile
@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 
 gem 'github-linguist', '~> 4.7.0', require: 'linguist'
 gem 'gitlab-markup', '~> 1.6.2'
-gem 'gitaly-proto', '~> 0.86.0', require: 'gitaly'
+gem 'gitaly-proto', '~> 0.87.0', require: 'gitaly'
 gem 'activesupport', '~> 5.0.2'
 gem 'rdoc', '~> 4.2'
 gem 'gollum-lib', '~> 4.2', require: false
diff --git a/ruby/Gemfile.lock b/ruby/Gemfile.lock
index bb0bbbce2..8a0f17680 100644
--- a/ruby/Gemfile.lock
+++ b/ruby/Gemfile.lock
@@ -17,7 +17,7 @@ GEM
       multipart-post (>= 1.2, < 3)
     gemojione (3.3.0)
       json
-    gitaly-proto (0.86.0)
+    gitaly-proto (0.87.0)
       google-protobuf (~> 3.1)
       grpc (~> 1.0)
     github-linguist (4.7.6)
@@ -141,7 +141,7 @@ PLATFORMS
 
 DEPENDENCIES
   activesupport (~> 5.0.2)
-  gitaly-proto (~> 0.86.0)
+  gitaly-proto (~> 0.87.0)
   github-linguist (~> 4.7.0)
   gitlab-markup (~> 1.6.2)
   gitlab-styles (~> 2.0.0)
diff --git a/ruby/lib/gitaly_server/commit_service.rb b/ruby/lib/gitaly_server/commit_service.rb
index 5add5fce4..41fbfed80 100644
--- a/ruby/lib/gitaly_server/commit_service.rb
+++ b/ruby/lib/gitaly_server/commit_service.rb
@@ -92,33 +92,76 @@ module GitalyServer
       bridge_exceptions do
         repository = Gitlab::Git::Repository.from_gitaly(request.repository, call)
 
-        begin
-          signature, signed_text = Rugged::Commit.extract_signature(repository.rugged, request.commit_id)
-        rescue Rugged::InvalidError
-          raise GRPC::InvalidArgument.new("commit lookup failed for #{request.commit_id.inspect}")
-        rescue Rugged::OdbError
-          # The client does not care if the commit does not exist
-          return []
+        Enumerator.new do |y|
+          each_commit_signature_chunk(repository, request.commit_id) do |signature_chunk, signed_text_chunk|
+            if signature_chunk.present?
+              y.yield Gitaly::ExtractCommitSignatureResponse.new(signature: signature_chunk)
+            end
+
+            if signed_text_chunk.present?
+              y.yield Gitaly::ExtractCommitSignatureResponse.new(signed_text: signed_text_chunk)
+            end
+          end
         end
+      end
+    end
+
+    def get_commit_signatures(request, call)
+      bridge_exceptions do
+        repository = Gitlab::Git::Repository.from_gitaly(request.repository, call)
 
         Enumerator.new do |y|
-          signature_io = binary_stringio(signature)
-          loop do
-            chunk = signature_io.read(Gitlab.config.git.write_buffer_size)
-            break if chunk.nil?
+          request.commit_ids.each do |commit_id|
+            msg = Gitaly::GetCommitSignaturesResponse.new(commit_id: commit_id)
 
-            y.yield Gitaly::ExtractCommitSignatureResponse.new(signature: chunk)
-          end
+            each_commit_signature_chunk(repository, commit_id) do |signature_chunk, signed_text_chunk|
+              if signature_chunk.present?
+                msg.signature = signature_chunk
+                y.yield msg
+              end
 
-          signed_text_io = binary_stringio(signed_text)
-          loop do
-            chunk = signed_text_io.read(Gitlab.config.git.write_buffer_size)
-            break if chunk.nil?
+              if signed_text_chunk.present?
+                msg.signed_text = signed_text_chunk
+                y.yield msg
+              end
 
-            y.yield Gitaly::ExtractCommitSignatureResponse.new(signed_text: chunk)
+              msg = Gitaly::GetCommitSignaturesResponse.new
+            end
           end
         end
       end
     end
+
+    private
+
+    # yields either signature chunks or signed_text chunks to the passed block
+    def each_commit_signature_chunk(repository, commit_id)
+      raise ArgumentError.new("expected a block") unless block_given?
+
+      begin
+        signature_text, signed_text = Rugged::Commit.extract_signature(repository.rugged, commit_id)
+      rescue Rugged::InvalidError
+        raise GRPC::InvalidArgument.new("commit lookup failed for #{commit_id.inspect}")
+      rescue Rugged::OdbError
+        # The client does not care if the commit does not exist
+        return
+      end
+
+      signature_text_io = binary_stringio(signature_text)
+      loop do
+        chunk = signature_text_io.read(Gitlab.config.git.write_buffer_size)
+        break if chunk.nil?
+
+        yield chunk, nil
+      end
+
+      signed_text_io = binary_stringio(signed_text)
+      loop do
+        chunk = signed_text_io.read(Gitlab.config.git.write_buffer_size)
+        break if chunk.nil?
+
+        yield nil, chunk
+      end
+    end
   end
 end
diff --git a/vendor/gitlab.com/gitlab-org/gitaly-proto/go/VERSION b/vendor/gitlab.com/gitlab-org/gitaly-proto/go/VERSION
index 63cd8847a..359ee08a7 100644
--- a/vendor/gitlab.com/gitlab-org/gitaly-proto/go/VERSION
+++ b/vendor/gitlab.com/gitlab-org/gitaly-proto/go/VERSION
@@ -1 +1 @@
-0.86.0
+0.87.0
diff --git a/vendor/gitlab.com/gitlab-org/gitaly-proto/go/blob.pb.go b/vendor/gitlab.com/gitlab-org/gitaly-proto/go/blob.pb.go
index 6f878fd35..28190a135 100644
--- a/vendor/gitlab.com/gitlab-org/gitaly-proto/go/blob.pb.go
+++ b/vendor/gitlab.com/gitlab-org/gitaly-proto/go/blob.pb.go
@@ -69,6 +69,8 @@ It has these top-level messages:
 	FilterShasWithSignaturesResponse
 	ExtractCommitSignatureRequest
 	ExtractCommitSignatureResponse
+	GetCommitSignaturesRequest
+	GetCommitSignaturesResponse
 	ListConflictFilesRequest
 	ConflictFileHeader
 	ConflictFile
diff --git a/vendor/gitlab.com/gitlab-org/gitaly-proto/go/commit.pb.go b/vendor/gitlab.com/gitlab-org/gitaly-proto/go/commit.pb.go
index 75121086a..1ddd03322 100644
--- a/vendor/gitlab.com/gitlab-org/gitaly-proto/go/commit.pb.go
+++ b/vendor/gitlab.com/gitlab-org/gitaly-proto/go/commit.pb.go
@@ -1173,6 +1173,64 @@ func (m *ExtractCommitSignatureResponse) GetSignedText() []byte {
 	return nil
 }
 
+type GetCommitSignaturesRequest struct {
+	Repository *Repository `protobuf:"bytes,1,opt,name=repository" json:"repository,omitempty"`
+	CommitIds  []string    `protobuf:"bytes,2,rep,name=commit_ids,json=commitIds" json:"commit_ids,omitempty"`
+}
+
+func (m *GetCommitSignaturesRequest) Reset()                    { *m = GetCommitSignaturesRequest{} }
+func (m *GetCommitSignaturesRequest) String() string            { return proto.CompactTextString(m) }
+func (*GetCommitSignaturesRequest) ProtoMessage()               {}
+func (*GetCommitSignaturesRequest) Descriptor() ([]byte, []int) { return fileDescriptor1, []int{35} }
+
+func (m *GetCommitSignaturesRequest) GetRepository() *Repository {
+	if m != nil {
+		return m.Repository
+	}
+	return nil
+}
+
+func (m *GetCommitSignaturesRequest) GetCommitIds() []string {
+	if m != nil {
+		return m.CommitIds
+	}
+	return nil
+}
+
+type GetCommitSignaturesResponse struct {
+	// Only present for a new commit signature data.
+	CommitId string `protobuf:"bytes,1,opt,name=commit_id,json=commitId" json:"commit_id,omitempty"`
+	// See ExtractCommitSignatureResponse above for how these fields should be handled.
+	Signature  []byte `protobuf:"bytes,2,opt,name=signature,proto3" json:"signature,omitempty"`
+	SignedText []byte `protobuf:"bytes,3,opt,name=signed_text,json=signedText,proto3" json:"signed_text,omitempty"`
+}
+
+func (m *GetCommitSignaturesResponse) Reset()                    { *m = GetCommitSignaturesResponse{} }
+func (m *GetCommitSignaturesResponse) String() string            { return proto.CompactTextString(m) }
+func (*GetCommitSignaturesResponse) ProtoMessage()               {}
+func (*GetCommitSignaturesResponse) Descriptor() ([]byte, []int) { return fileDescriptor1, []int{36} }
+
+func (m *GetCommitSignaturesResponse) GetCommitId() string {
+	if m != nil {
+		return m.CommitId
+	}
+	return ""
+}
+
+func (m *GetCommitSignaturesResponse) GetSignature() []byte {
+	if m != nil {
+		return m.Signature
+	}
+	return nil
+}
+
+func (m *GetCommitSignaturesResponse) GetSignedText() []byte {
+	if m != nil {
+		return m.SignedText
+	}
+	return nil
+}
+
 func init() {
 	proto.RegisterType((*CommitStatsRequest)(nil), "gitaly.CommitStatsRequest")
 	proto.RegisterType((*CommitStatsResponse)(nil), "gitaly.CommitStatsResponse")
@@ -1210,6 +1268,8 @@ func init() {
 	proto.RegisterType((*FilterShasWithSignaturesResponse)(nil), "gitaly.FilterShasWithSignaturesResponse")
 	proto.RegisterType((*ExtractCommitSignatureRequest)(nil), "gitaly.ExtractCommitSignatureRequest")
 	proto.RegisterType((*ExtractCommitSignatureResponse)(nil), "gitaly.ExtractCommitSignatureResponse")
+	proto.RegisterType((*GetCommitSignaturesRequest)(nil), "gitaly.GetCommitSignaturesRequest")
+	proto.RegisterType((*GetCommitSignaturesResponse)(nil), "gitaly.GetCommitSignaturesResponse")
 	proto.RegisterEnum("gitaly.TreeEntryResponse_ObjectType", TreeEntryResponse_ObjectType_name, TreeEntryResponse_ObjectType_value)
 	proto.RegisterEnum("gitaly.TreeEntry_EntryType", TreeEntry_EntryType_name, TreeEntry_EntryType_value)
 	proto.RegisterEnum("gitaly.FindAllCommitsRequest_Order", FindAllCommitsRequest_Order_name, FindAllCommitsRequest_Order_value)
@@ -1247,6 +1307,7 @@ type CommitServiceClient interface {
 	// arbitrarily large and signature verification is impossible without the
 	// full text.
 	ExtractCommitSignature(ctx context.Context, in *ExtractCommitSignatureRequest, opts ...grpc.CallOption) (CommitService_ExtractCommitSignatureClient, error)
+	GetCommitSignatures(ctx context.Context, in *GetCommitSignaturesRequest, opts ...grpc.CallOption) (CommitService_GetCommitSignaturesClient, error)
 }
 
 type commitServiceClient struct {
@@ -1662,6 +1723,38 @@ func (x *commitServiceExtractCommitSignatureClient) Recv() (*ExtractCommitSignat
 	return m, nil
 }
 
+func (c *commitServiceClient) GetCommitSignatures(ctx context.Context, in *GetCommitSignaturesRequest, opts ...grpc.CallOption) (CommitService_GetCommitSignaturesClient, error) {
+	stream, err := grpc.NewClientStream(ctx, &_CommitService_serviceDesc.Streams[11], c.cc, "/gitaly.CommitService/GetCommitSignatures", opts...)
+	if err != nil {
+		return nil, err
+	}
+	x := &commitServiceGetCommitSignaturesClient{stream}
+	if err := x.ClientStream.SendMsg(in); err != nil {
+		return nil, err
+	}
+	if err := x.ClientStream.CloseSend(); err != nil {
+		return nil, err
+	}
+	return x, nil
+}
+
+type CommitService_GetCommitSignaturesClient interface {
+	Recv() (*GetCommitSignaturesResponse, error)
+	grpc.ClientStream
+}
+
+type commitServiceGetCommitSignaturesClient struct {
+	grpc.ClientStream
+}
+
+func (x *commitServiceGetCommitSignaturesClient) Recv() (*GetCommitSignaturesResponse, error) {
+	m := new(GetCommitSignaturesResponse)
+	if err := x.ClientStream.RecvMsg(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
 // Server API for CommitService service
 
 type CommitServiceServer interface {
@@ -1686,6 +1779,7 @@ type CommitServiceServer interface {
 	// arbitrarily large and signature verification is impossible without the
 	// full text.
 	ExtractCommitSignature(*ExtractCommitSignatureRequest, CommitService_ExtractCommitSignatureServer) error
+	GetCommitSignatures(*GetCommitSignaturesRequest, CommitService_GetCommitSignaturesServer) error
 }
 
 func RegisterCommitServiceServer(s *grpc.Server, srv CommitServiceServer) {
@@ -2036,6 +2130,27 @@ func (x *commitServiceExtractCommitSignatureServer) Send(m *ExtractCommitSignatu
 	return x.ServerStream.SendMsg(m)
 }
 
+func _CommitService_GetCommitSignatures_Handler(srv interface{}, stream grpc.ServerStream) error {
+	m := new(GetCommitSignaturesRequest)
+	if err := stream.RecvMsg(m); err != nil {
+		return err
+	}
+	return srv.(CommitServiceServer).GetCommitSignatures(m, &commitServiceGetCommitSignaturesServer{stream})
+}
+
+type CommitService_GetCommitSignaturesServer interface {
+	Send(*GetCommitSignaturesResponse) error
+	grpc.ServerStream
+}
+
+type commitServiceGetCommitSignaturesServer struct {
+	grpc.ServerStream
+}
+
+func (x *commitServiceGetCommitSignaturesServer) Send(m *GetCommitSignaturesResponse) error {
+	return x.ServerStream.SendMsg(m)
+}
+
 var _CommitService_serviceDesc = grpc.ServiceDesc{
 	ServiceName: "gitaly.CommitService",
 	HandlerType: (*CommitServiceServer)(nil),
@@ -2122,6 +2237,11 @@ var _CommitService_serviceDesc = grpc.ServiceDesc{
 			Handler:       _CommitService_ExtractCommitSignature_Handler,
 			ServerStreams: true,
 		},
+		{
+			StreamName:    "GetCommitSignatures",
+			Handler:       _CommitService_GetCommitSignatures_Handler,
+			ServerStreams: true,
+		},
 	},
 	Metadata: "commit.proto",
 }
@@ -2129,104 +2249,108 @@ var _CommitService_serviceDesc = grpc.ServiceDesc{
 func init() { proto.RegisterFile("commit.proto", fileDescriptor1) }
 
 var fileDescriptor1 = []byte{
-	// 1576 bytes of a gzipped FileDescriptorProto
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 }
diff --git a/vendor/gitlab.com/gitlab-org/gitaly-proto/go/repository-service.pb.go b/vendor/gitlab.com/gitlab-org/gitaly-proto/go/repository-service.pb.go
index 3a112cf44..02ea8f01c 100644
--- a/vendor/gitlab.com/gitlab-org/gitaly-proto/go/repository-service.pb.go
+++ b/vendor/gitlab.com/gitlab-org/gitaly-proto/go/repository-service.pb.go
@@ -239,7 +239,7 @@ type FetchRemoteRequest struct {
 	Timeout    int32       `protobuf:"varint,5,opt,name=timeout" json:"timeout,omitempty"`
 	SshKey     string      `protobuf:"bytes,6,opt,name=ssh_key,json=sshKey" json:"ssh_key,omitempty"`
 	KnownHosts string      `protobuf:"bytes,7,opt,name=known_hosts,json=knownHosts" json:"known_hosts,omitempty"`
-	Prune      bool        `protobuf:"varint,8,opt,name=prune" json:"prune,omitempty"`
+	NoPrune    bool        `protobuf:"varint,9,opt,name=no_prune,json=noPrune" json:"no_prune,omitempty"`
 }
 
 func (m *FetchRemoteRequest) Reset()                    { *m = FetchRemoteRequest{} }
@@ -296,9 +296,9 @@ func (m *FetchRemoteRequest) GetKnownHosts() string {
 	return ""
 }
 
-func (m *FetchRemoteRequest) GetPrune() bool {
+func (m *FetchRemoteRequest) GetNoPrune() bool {
 	if m != nil {
-		return m.Prune
+		return m.NoPrune
 	}
 	return false
 }
@@ -1820,96 +1820,97 @@ var _RepositoryService_serviceDesc = grpc.ServiceDesc{
 func init() { proto.RegisterFile("repository-service.proto", fileDescriptor10) }
 
 var fileDescriptor10 = []byte{
-	// 1443 bytes of a gzipped FileDescriptorProto
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+	0xf1, 0x8f, 0x99, 0x13, 0xb8, 0xfd, 0x4a, 0x99, 0x82, 0x5f, 0x82, 0x91, 0x87, 0x8b, 0xd4, 0xaf,
+	0xc2, 0xfc, 0x9d, 0xe3, 0x8f, 0x49, 0x54, 0xa5, 0xd5, 0x00, 0xff, 0x56, 0x07, 0x43, 0xde, 0x8d,
+	0x6b, 0x3a, 0x66, 0x2e, 0x51, 0xbb, 0xaa, 0xc4, 0xe7, 0x15, 0x2c, 0x73, 0x09, 0x65, 0xa7, 0xb6,
+	0xce, 0x94, 0x6e, 0x6d, 0xab, 0xc5, 0x56, 0xa6, 0xf0, 0x45, 0x00, 0xb7, 0xd2, 0x18, 0x19, 0xca,
+	0x96, 0xd5, 0xe2, 0x29, 0x03, 0xd1, 0x63, 0x00, 0xe1, 0xb0, 0x1e, 0x11, 0x36, 0x23, 0x5d, 0x19,
+	0xd4, 0x96, 0xd5, 0x54, 0x12, 0x8b, 0x74, 0xf1, 0x21, 0x6c, 0x14, 0x1c, 0x4a, 0xbf, 0x57, 0x8c,
+	0xf0, 0xb1, 0x2f, 0xe2, 0xf7, 0x4a, 0x8d, 0xf0, 0x11, 0x2c, 0x9d, 0x72, 0x77, 0x50, 0xc5, 0xff,
+	0x4f, 0xa1, 0xa5, 0x20, 0xb4, 0xcf, 0x09, 0x63, 0x94, 0x45, 0x31, 0x57, 0x03, 0xfc, 0x4b, 0x1d,
+	0xfe, 0xf5, 0x81, 0x79, 0x61, 0xa2, 0x74, 0xab, 0xb8, 0xba, 0x0d, 0xb3, 0xe1, 0xe9, 0x55, 0x49,
+	0x0c, 0x3f, 0x33, 0x95, 0x72, 0x36, 0x5b, 0x29, 0xd1, 0x2e, 0xb4, 0xa8, 0xdf, 0xb1, 0x93, 0x79,
+	0xe5, 0xb4, 0x25, 0xea, 0x77, 0xac, 0x78, 0x49, 0x52, 0xcb, 0xe6, 0xd3, 0xb5, 0x6c, 0x15, 0xe6,
+	0x79, 0x9f, 0xf8, 0xbe, 0x2c, 0x4b, 0x0d, 0x4b, 0x0d, 0xf0, 0x1e, 0xb4, 0xf5, 0x19, 0xa6, 0x1e,
+	0xb7, 0x0f, 0xab, 0xa7, 0x5e, 0xd0, 0xb9, 0x24, 0xac, 0x47, 0x8e, 0x1d, 0x5e, 0x29, 0xfb, 0xb7,
+	0xa0, 0x19, 0x1f, 0x80, 0x1b, 0x33, 0x3b, 0xb3, 0x61, 0xd8, 0x13, 0x01, 0x7e, 0x0e, 0x6b, 0x13,
+	0x9a, 0x74, 0xea, 0xdd, 0x3a, 0x5c, 0x5d, 0xfd, 0xa6, 0x25, 0xbf, 0xf1, 0xcf, 0x75, 0x58, 0x56,
+	0xf5, 0xea, 0x94, 0xb2, 0xc1, 0x3f, 0x79, 0xe5, 0x43, 0x3a, 0x91, 0xb6, 0x24, 0xa1, 0x34, 0x1b,
+	0x17, 0xdc, 0x22, 0xa1, 0xb1, 0x17, 0xc1, 0x15, 0xa3, 0x3d, 0x46, 0x38, 0xaf, 0x58, 0x3a, 0x99,
+	0x84, 0x4b, 0x95, 0x4e, 0x25, 0xb8, 0xe8, 0xe0, 0x6f, 0xc1, 0x2c, 0xd2, 0x16, 0x39, 0x70, 0x1b,
+	0x96, 0xbc, 0xc0, 0x1e, 0x45, 0xe2, 0x28, 0x71, 0xc0, 0x4b, 0x16, 0x2a, 0x63, 0xaf, 0x3f, 0x8e,
+	0x1d, 0xde, 0xff, 0xcb, 0x8c, 0xe5, 0x12, 0x2e, 0x65, 0xac, 0x12, 0xc4, 0xc6, 0xe6, 0xb5, 0x7d,
+	0xad, 0xb1, 0x5d, 0x78, 0x32, 0xf9, 0x52, 0x9d, 0x32, 0x3a, 0xfc, 0xc1, 0x7a, 0x5b, 0x31, 0x1d,
+	0xc7, 0xcc, 0x8f, 0x6c, 0x0d, 0x3f, 0xf1, 0x2e, 0x6c, 0x97, 0xea, 0x89, 0x82, 0x7c, 0x01, 0x2b,
+	0x6a, 0xc9, 0xf1, 0x38, 0xe8, 0xf8, 0x95, 0x58, 0xda, 0x33, 0x58, 0xcd, 0x42, 0x4d, 0x79, 0x77,
+	0x08, 0x20, 0x99, 0xbd, 0x27, 0x34, 0xe8, 0x7a, 0xbd, 0x8a, 0x71, 0xea, 0x8e, 0x7d, 0xdf, 0x1e,
+	0x39, 0xa2, 0x1f, 0xc7, 0x29, 0x14, 0x5c, 0x39, 0xa2, 0x8f, 0x9f, 0xc3, 0x4a, 0x46, 0xcd, 0xd4,
+	0x3a, 0x31, 0x80, 0xdd, 0x22, 0x6f, 0x55, 0x76, 0x4c, 0xe2, 0x80, 0x99, 0x94, 0x03, 0x9e, 0x02,
+	0x9e, 0xa6, 0x2c, 0x8a, 0xce, 0x39, 0xa0, 0xb0, 0xa0, 0xbc, 0xf5, 0x5c, 0x12, 0x54, 0x2a, 0x5c,
+	0xf8, 0x04, 0x56, 0x32, 0x48, 0x91, 0x27, 0x5e, 0x00, 0xf2, 0x95, 0xc8, 0xe6, 0x7d, 0xca, 0x84,
+	0x1d, 0x38, 0xc3, 0xb8, 0x4c, 0xb5, 0xa3, 0x99, 0xeb, 0x70, 0xe2, 0x9d, 0x33, 0x24, 0x07, 0xbf,
+	0x3e, 0x94, 0x5d, 0x4e, 0x4c, 0xc4, 0x55, 0x1b, 0x88, 0x3e, 0x40, 0x7b, 0xb2, 0x37, 0x43, 0xdb,
+	0x79, 0x73, 0x32, 0x4d, 0xa0, 0xb9, 0x53, 0xbe, 0x20, 0x3a, 0x7b, 0x0d, 0xdd, 0xc4, 0x3d, 0x55,
+	0xaa, 0xe1, 0x42, 0xe9, 0x8d, 0x85, 0xbd, 0x9d, 0xb9, 0x3b, 0x65, 0x45, 0x82, 0xfd, 0x1a, 0x40,
+	0x77, 0x50, 0x68, 0x23, 0xbb, 0x25, 0xd5, 0xc3, 0x99, 0x66, 0xd1, 0x54, 0x02, 0xf3, 0x3d, 0x3c,
+	0xcc, 0x36, 0x40, 0xe8, 0x71, 0x42, 0xed, 0x8a, 0x5a, 0x31, 0xf3, 0x49, 0xd9, 0x74, 0x1a, 0x32,
+	0xdb, 0xec, 0x68, 0xc8, 0xc2, 0x8e, 0x4a, 0x43, 0x16, 0xf7, 0x48, 0xb8, 0x86, 0x7e, 0x04, 0x94,
+	0x6f, 0x52, 0x50, 0xe2, 0xa7, 0xd2, 0x6e, 0xc9, 0xc4, 0xd3, 0x96, 0x24, 0xf0, 0xe7, 0xb0, 0x94,
+	0xa2, 0xf7, 0x28, 0xf1, 0x58, 0xbe, 0xf3, 0x31, 0x37, 0x0b, 0xe7, 0x12, 0xa4, 0x0f, 0xd0, 0x9e,
+	0xcc, 0x0a, 0x7d, 0x95, 0x4a, 0x7a, 0x05, 0x7d, 0x95, 0x4a, 0xd9, 0x7f, 0x0d, 0x9d, 0x01, 0x68,
+	0x46, 0xac, 0xc3, 0x9d, 0xa3, 0xdf, 0x3a, 0xdc, 0x79, 0x02, 0x8d, 0x6b, 0x2f, 0xeb, 0xa1, 0x85,
+	0x93, 0x0c, 0x57, 0x5b, 0x58, 0x42, 0xa5, 0xb5, 0x85, 0x65, 0xe4, 0x58, 0x5d, 0xf6, 0x1c, 0x65,
+	0xd4, 0x97, 0xbd, 0x8c, 0x22, 0xeb, 0xcb, 0x5e, 0xca, 0x37, 0x71, 0x0d, 0x1d, 0xc2, 0x5c, 0x48,
+	0x0b, 0xd1, 0x4a, 0xb2, 0x58, 0xf3, 0x4c, 0x73, 0x35, 0x2b, 0x4c, 0x36, 0xbd, 0x82, 0x46, 0x4c,
+	0xb0, 0xd0, 0x7a, 0xbc, 0x66, 0x82, 0x36, 0x9a, 0x46, 0x7e, 0x22, 0x01, 0x78, 0x07, 0x0f, 0x32,
+	0x6c, 0x08, 0x6d, 0x25, 0x9a, 0x0a, 0xe8, 0x98, 0xf9, 0xb8, 0x64, 0x36, 0x9d, 0xb2, 0x9a, 0xa5,
+	0xe8, 0x18, 0xe6, 0x38, 0x94, 0x8e, 0x61, 0x01, 0xa9, 0x91, 0xc9, 0x90, 0x27, 0x1a, 0x3a, 0x19,
+	0x4a, 0x29, 0x8f, 0x4e, 0x86, 0x72, 0x9e, 0x12, 0xc3, 0x4f, 0x52, 0x83, 0x34, 0x7c, 0x09, 0x49,
+	0x49, 0xc3, 0x97, 0x31, 0x0b, 0x5c, 0x43, 0x7e, 0xbe, 0x67, 0x8e, 0x9e, 0x74, 0xf4, 0x9f, 0xb2,
+	0x3c, 0xc8, 0x72, 0x0b, 0xf3, 0xbf, 0x7f, 0xba, 0x2e, 0xd1, 0x76, 0x09, 0xad, 0xf4, 0x93, 0x8e,
+	0x36, 0xb3, 0x5b, 0x33, 0x4f, 0xa3, 0xb9, 0x55, 0x3c, 0x99, 0x4a, 0x9e, 0x4f, 0x60, 0x96, 0x3f,
+	0x7a, 0xe8, 0x7f, 0xd3, 0xec, 0xca, 0xaa, 0x7a, 0xf6, 0x35, 0x4b, 0x63, 0xc5, 0x7b, 0xf5, 0xb0,
+	0x42, 0xa5, 0x78, 0x80, 0xae, 0x50, 0x79, 0x0e, 0xa2, 0x2b, 0x54, 0x01, 0x71, 0x88, 0x6a, 0x9d,
+	0x7e, 0x47, 0x53, 0xb5, 0x2e, 0xf7, 0x4c, 0xa7, 0x6a, 0x5d, 0xfe, 0xe1, 0xc5, 0xb5, 0xdb, 0x05,
+	0xf9, 0xa3, 0xf4, 0xf0, 0x8f, 0x00, 0x00, 0x00, 0xff, 0xff, 0x46, 0x1f, 0xcc, 0xb0, 0x5a, 0x15,
+	0x00, 0x00,
 }
diff --git a/vendor/vendor.json b/vendor/vendor.json
index 1221f57f2..fe1f868e4 100644
--- a/vendor/vendor.json
+++ b/vendor/vendor.json
@@ -201,12 +201,12 @@
 			"revisionTime": "2017-12-31T12:27:32Z"
 		},
 		{
-			"checksumSHA1": "aAau9rZ5kLnMEAwnZUPBPmv0cCc=",
+			"checksumSHA1": "SkLpvkNLVOiN2bCW6FWceyLzSjg=",
 			"path": "gitlab.com/gitlab-org/gitaly-proto/go",
-			"revision": "6b83118c4e57c90e214bc58de6d9ff1a175257a3",
-			"revisionTime": "2018-02-26T17:03:11Z",
-			"version": "v0.86.0",
-			"versionExact": "v0.86.0"
+			"revision": "c2cb89626b5c88fdcf50abdafb056b1a9dfbebeb",
+			"revisionTime": "2018-02-28T21:07:46Z",
+			"version": "v0.87.0",
+			"versionExact": "v0.87.0"
 		},
 		{
 			"checksumSHA1": "nqWNlnMmVpt628zzvyo6Yv2CX5Q=",