proto: Remove unused `Repack` field from FetchIntoObjectPoolRequest

The `FetchIntoObjectPoolRequest` messages has a `Repack` field that
supposedly controls whether the repository should or should not be
repacked. This flag is completely ignored though and has always been
ignored. It also isn't ever set by the Rails client.

Remove the field without replacement for the time being. It seems like
there is no usecase for it right now and it's bad to keep a no-op flag
around in our code. Furthermore, we will want to fully move repository
housekeeping into Gitaly eventually anyway.

5 files changed, 68 insertions, 80 deletions

diff --git a/internal/gitaly/service/objectpool/fetch_into_object_pool_test.go b/internal/gitaly/service/objectpool/fetch_into_object_pool_test.go
index c9c6aaa10..2761d4bf9 100644
--- a/internal/gitaly/service/objectpool/fetch_into_object_pool_test.go
+++ b/internal/gitaly/service/objectpool/fetch_into_object_pool_test.go
@@ -48,7 +48,6 @@ func TestFetchIntoObjectPool_Success(t *testing.T) {
 	req := &gitalypb.FetchIntoObjectPoolRequest{
 		ObjectPool: pool.ToProto(),
 		Origin:     repo,
-		Repack:     true,
 	}
 
 	_, err = client.FetchIntoObjectPool(ctx, req)
@@ -116,7 +115,6 @@ func TestFetchIntoObjectPool_hooks(t *testing.T) {
 	req := &gitalypb.FetchIntoObjectPoolRequest{
 		ObjectPool: pool.ToProto(),
 		Origin:     repo,
-		Repack:     true,
 	}
 
 	_, err = client.FetchIntoObjectPool(ctx, req)
@@ -155,7 +153,6 @@ func TestFetchIntoObjectPool_CollectLogStatistics(t *testing.T) {
 	req := &gitalypb.FetchIntoObjectPoolRequest{
 		ObjectPool: pool.ToProto(),
 		Origin:     repo,
-		Repack:     true,
 	}
 
 	_, err = client.FetchIntoObjectPool(ctx, req)
diff --git a/internal/praefect/protoregistry/find_oid_test.go b/internal/praefect/protoregistry/find_oid_test.go
index a6dbcf745..d4b01f25a 100644
--- a/internal/praefect/protoregistry/find_oid_test.go
+++ b/internal/praefect/protoregistry/find_oid_test.go
@@ -78,7 +78,6 @@ func TestProtoRegistryTargetRepo(t *testing.T) {
 			pbMsg: &gitalypb.FetchIntoObjectPoolRequest{
 				Origin:     testRepos[0],
 				ObjectPool: &gitalypb.ObjectPool{Repository: testRepos[1]},
-				Repack:     false,
 			},
 			expectRepo:           testRepos[1],
 			expectAdditionalRepo: testRepos[0],
diff --git a/proto/go/gitalypb/objectpool.pb.go b/proto/go/gitalypb/objectpool.pb.go
index 0d1c57a20..6f052357b 100644
--- a/proto/go/gitalypb/objectpool.pb.go
+++ b/proto/go/gitalypb/objectpool.pb.go
@@ -490,8 +490,6 @@ type FetchIntoObjectPoolRequest struct {
 	Origin *Repository `protobuf:"bytes,1,opt,name=origin,proto3" json:"origin,omitempty"`
 	// ObjectPool is the repository to fetch changes into.
 	ObjectPool *ObjectPool `protobuf:"bytes,2,opt,name=object_pool,json=objectPool,proto3" json:"object_pool,omitempty"`
-	// Repack is not used.
-	Repack bool `protobuf:"varint,3,opt,name=repack,proto3" json:"repack,omitempty"`
 }
 
 func (x *FetchIntoObjectPoolRequest) Reset() {
@@ -540,13 +538,6 @@ func (x *FetchIntoObjectPoolRequest) GetObjectPool() *ObjectPool {
 	return nil
 }
 
-func (x *FetchIntoObjectPoolRequest) GetRepack() bool {
-	if x != nil {
-		return x.Repack
-	}
-	return false
-}
-
 // FetchIntoObjectPoolResponse is a response for the FetchIntoObjectPool RPC.
 type FetchIntoObjectPoolResponse struct {
 	state         protoimpl.MessageState
@@ -735,7 +726,7 @@ var file_objectpool_proto_rawDesc = []byte{
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@@ -744,71 +735,70 @@ var file_objectpool_proto_rawDesc = []byte{
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 }
 
 var (
diff --git a/proto/objectpool.proto b/proto/objectpool.proto
index d8223dd25..9634f62c7 100644
--- a/proto/objectpool.proto
+++ b/proto/objectpool.proto
@@ -129,8 +129,11 @@ message FetchIntoObjectPoolRequest {
   Repository origin = 1 [(additional_repository)=true];
   // ObjectPool is the repository to fetch changes into.
   ObjectPool object_pool = 2 [(target_repository)=true];
-  // Repack is not used.
-  bool repack = 3;
+
+  // Repack had the intent to control whether FetchIntoObjectPool would perform housekeeping tasks
+  // in the pool repository or not. This flag wasn't ever honored though and is thus doing nothing.
+  reserved 3;
+  reserved "repack";
 }
 
 // FetchIntoObjectPoolResponse is a response for the FetchIntoObjectPool RPC.
diff --git a/ruby/proto/gitaly/objectpool_pb.rb b/ruby/proto/gitaly/objectpool_pb.rb
index ebbe7fa8f..f022a19d6 100644
--- a/ruby/proto/gitaly/objectpool_pb.rb
+++ b/ruby/proto/gitaly/objectpool_pb.rb
@@ -37,7 +37,6 @@ Google::Protobuf::DescriptorPool.generated_pool.build do
     add_message "gitaly.FetchIntoObjectPoolRequest" do
       optional :origin, :message, 1, "gitaly.Repository"
       optional :object_pool, :message, 2, "gitaly.ObjectPool"
-      optional :repack, :bool, 3
     end
     add_message "gitaly.FetchIntoObjectPoolResponse" do
     end