From d973c9772d63ea106cf378267298d87bd37beee1 Mon Sep 17 00:00:00 2001 From: Florian Klink Date: Wed, 28 Dec 2022 14:06:02 +0100 Subject: chore(tvix/store/protos): add PathInfoService::CalculateNAR() Expose the NAR calculation to a separate `CalculateNAR` method, which responds with the NAR size and sha256 hash. Contrary to what cl/7618 and cl/7620 initially did, don't add different other request types. In the CalculateNARResponse message, there's now some duplication in the (optional) `narinfo` field of a PathInfo, but I'm not entirely sure if we want to drop the fields from there yet. Change-Id: Id797c56e17efedac115fbd43de9dfde9fa1db140 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7663 Reviewed-by: tazjin Tested-by: BuildkiteCI --- tvix/store/protos/rpc_pathinfo.pb.go | 130 +++++++++++++++++++++++++----- tvix/store/protos/rpc_pathinfo.proto | 43 ++++++++-- tvix/store/protos/rpc_pathinfo_grpc.pb.go | 88 +++++++++++++++++--- 3 files changed, 222 insertions(+), 39 deletions(-) diff --git a/tvix/store/protos/rpc_pathinfo.pb.go b/tvix/store/protos/rpc_pathinfo.pb.go index f535dab56a..0b05f2a70c 100644 --- a/tvix/store/protos/rpc_pathinfo.pb.go +++ b/tvix/store/protos/rpc_pathinfo.pb.go @@ -97,6 +97,67 @@ type GetPathInfoRequest_ByOutputHash struct { func (*GetPathInfoRequest_ByOutputHash) isGetPathInfoRequest_ByWhat() {} +// CalculateNARResponse is the response returned by the CalculateNAR request. +// +// It contains the size of the NAR representation (in bytes), and the sha56 +// digest. +type CalculateNARResponse struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + // This size of the NAR file, in bytes. + NarSize uint32 `protobuf:"varint,1,opt,name=nar_size,json=narSize,proto3" json:"nar_size,omitempty"` + // The sha256 of the NAR file representation. + NarSha256 []byte `protobuf:"bytes,2,opt,name=nar_sha256,json=narSha256,proto3" json:"nar_sha256,omitempty"` +} + +func (x *CalculateNARResponse) Reset() { + *x = CalculateNARResponse{} + if protoimpl.UnsafeEnabled { + mi := &file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[1] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *CalculateNARResponse) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*CalculateNARResponse) ProtoMessage() {} + +func (x *CalculateNARResponse) ProtoReflect() protoreflect.Message { + mi := &file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[1] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use CalculateNARResponse.ProtoReflect.Descriptor instead. +func (*CalculateNARResponse) Descriptor() ([]byte, []int) { + return file_tvix_store_protos_rpc_pathinfo_proto_rawDescGZIP(), []int{1} +} + +func (x *CalculateNARResponse) GetNarSize() uint32 { + if x != nil { + return x.NarSize + } + return 0 +} + +func (x *CalculateNARResponse) GetNarSha256() []byte { + if x != nil { + return x.NarSha256 + } + return nil +} + var File_tvix_store_protos_rpc_pathinfo_proto protoreflect.FileDescriptor var file_tvix_store_protos_rpc_pathinfo_proto_rawDesc = []byte{ @@ -110,19 +171,28 @@ var file_tvix_store_protos_rpc_pathinfo_proto_rawDesc = []byte{ 0x0e, 0x62, 0x79, 0x5f, 0x6f, 0x75, 0x74, 0x70, 0x75, 0x74, 0x5f, 0x68, 0x61, 0x73, 0x68, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c, 0x48, 0x00, 0x52, 0x0c, 0x62, 0x79, 0x4f, 0x75, 0x74, 0x70, 0x75, 0x74, 0x48, 0x61, 0x73, 0x68, 0x42, 0x09, 0x0a, 0x07, 0x62, 0x79, 0x5f, 0x77, 0x68, 0x61, 0x74, - 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(*GetPathInfoRequest)(nil), // 0: tvix.store.v1.GetPathInfoRequest - (*PathInfo)(nil), // 1: tvix.store.v1.PathInfo + (*GetPathInfoRequest)(nil), // 0: tvix.store.v1.GetPathInfoRequest + (*CalculateNARResponse)(nil), // 1: tvix.store.v1.CalculateNARResponse + (*PathInfo)(nil), // 2: tvix.store.v1.PathInfo + (*Node)(nil), // 3: tvix.store.v1.Node } var file_tvix_store_protos_rpc_pathinfo_proto_depIdxs = []int32{ 0, // 0: tvix.store.v1.PathInfoService.Get:input_type -> tvix.store.v1.GetPathInfoRequest - 1, // 1: tvix.store.v1.PathInfoService.Put:input_type -> tvix.store.v1.PathInfo - 1, // 2: tvix.store.v1.PathInfoService.Get:output_type -> tvix.store.v1.PathInfo - 1, // 3: tvix.store.v1.PathInfoService.Put:output_type -> tvix.store.v1.PathInfo - 2, // [2:4] is the sub-list for method output_type - 0, // [0:2] is the sub-list for method input_type + 2, // 1: tvix.store.v1.PathInfoService.Put:input_type -> tvix.store.v1.PathInfo + 3, // 2: tvix.store.v1.PathInfoService.CalculateNAR:input_type -> tvix.store.v1.Node + 2, // 3: tvix.store.v1.PathInfoService.Get:output_type -> tvix.store.v1.PathInfo + 2, // 4: tvix.store.v1.PathInfoService.Put:output_type -> tvix.store.v1.PathInfo + 1, // 5: tvix.store.v1.PathInfoService.CalculateNAR:output_type -> tvix.store.v1.CalculateNARResponse + 3, // [3:6] is the sub-list for method output_type + 0, // [0:3] is the sub-list for method input_type 0, // [0:0] is the sub-list for extension type_name 0, // [0:0] is the sub-list for extension extendee 0, // [0:0] is the sub-list for field type_name @@ -173,6 +247,18 @@ func file_tvix_store_protos_rpc_pathinfo_proto_init() { return nil } } + file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*CalculateNARResponse); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } } file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[0].OneofWrappers = []interface{}{ (*GetPathInfoRequest_ByOutputHash)(nil), @@ -183,7 +269,7 @@ func file_tvix_store_protos_rpc_pathinfo_proto_init() { GoPackagePath: reflect.TypeOf(x{}).PkgPath(), RawDescriptor: file_tvix_store_protos_rpc_pathinfo_proto_rawDesc, NumEnums: 0, - NumMessages: 1, + NumMessages: 2, NumExtensions: 0, NumServices: 1, }, diff --git a/tvix/store/protos/rpc_pathinfo.proto b/tvix/store/protos/rpc_pathinfo.proto index f9710f5722..f37794c291 100644 --- a/tvix/store/protos/rpc_pathinfo.proto +++ b/tvix/store/protos/rpc_pathinfo.proto @@ -9,23 +9,42 @@ import "tvix/store/protos/pathinfo.proto"; option go_package = "code.tvl.fyi/tvix/store/protos;storev1"; service PathInfoService { - // Get retrieves a PathInfo object, by using the lookup parameters in - // GetPathInfoRequest. - // If the PathInfo object contains a DirectoryNode, it needs to be looked - // up separately via the DirectoryService, which is purely - // content-addressed. + // Return a PathInfo message, identified by the decoded nixbase32 part + // of a Nix output path. + // + // To substitute /nix/store/xm35nga2g20mz5sm5l6n8v3bdm86yj83- + // cowsay-3.04 the bytes in the request would be + // nixbase32dec("xm35nga2g20mz5sm5l6n8v3bdm86yj83"). rpc Get(GetPathInfoRequest) returns (PathInfo); // Put uploads a PathInfo object to the remote end. It MUST not return // until the PathInfo object has been written on the the remote end. + // // The remote end MAY check if a potential DirectoryNode has already been // uploaded. + // // Uploading clients SHOULD obviously not steer other machines to try to // substitute before from the remote end before having finished uploading // PathInfo, Directories and Blobs. // The returned PathInfo object MAY contain additional narinfo signatures, // but is otherwise left untouched. rpc Put(PathInfo) returns (PathInfo); + + + // Calculate the NAR representation of the contents specified by the + // root_node. The calculation SHOULD be cached server-side for subsequent + // requests. + // + // All references (to blobs or Directory messages) MUST already exist in + // the store. + // + // The method can be used to produce a Nix fixed-output path, which + // contains the (compressed) sha256 of the NAR content representation in + // the root_node name (suffixed with the name). + // + // It can also be used to calculate arbitrary NAR hashes of output paths, + // in case a legacy Nix Binary Cache frontend is provided. + rpc CalculateNAR(Node) returns (CalculateNARResponse); } // GetPathInfoRequest describes the lookup parameters that can be used to @@ -38,7 +57,17 @@ message GetPathInfoRequest { // /nix/store/xm35nga2g20mz5sm5l6n8v3bdm86yj83-cowsay-3.04 // this field would contain nixbase32dec("xm35nga2g20mz5sm5l6n8v3bdm86yj83"). bytes by_output_hash = 1; + }; +} + +// CalculateNARResponse is the response returned by the CalculateNAR request. +// +// It contains the size of the NAR representation (in bytes), and the sha56 +// digest. +message CalculateNARResponse { + // This size of the NAR file, in bytes. + uint32 nar_size = 1; - // placeholder: by_drv and output name? - } + // The sha256 of the NAR file representation. + bytes nar_sha256 = 2; } diff --git a/tvix/store/protos/rpc_pathinfo_grpc.pb.go b/tvix/store/protos/rpc_pathinfo_grpc.pb.go index b94d24dc5b..a69820e358 100644 --- a/tvix/store/protos/rpc_pathinfo_grpc.pb.go +++ b/tvix/store/protos/rpc_pathinfo_grpc.pb.go @@ -22,22 +22,39 @@ const _ = grpc.SupportPackageIsVersion7 // // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream. type PathInfoServiceClient interface { - // Get retrieves a PathInfo object, by using the lookup parameters in - // GetPathInfoRequest. - // If the PathInfo object contains a DirectoryNode, it needs to be looked - // up separately via the DirectoryService, which is purely - // content-addressed. + // Return a PathInfo message, identified by the decoded nixbase32 part + // of a Nix output path. + // + // To substitute /nix/store/xm35nga2g20mz5sm5l6n8v3bdm86yj83- + // cowsay-3.04 the bytes in the request would be + // nixbase32dec("xm35nga2g20mz5sm5l6n8v3bdm86yj83"). Get(ctx context.Context, in *GetPathInfoRequest, opts ...grpc.CallOption) (*PathInfo, error) // Put uploads a PathInfo object to the remote end. It MUST not return // until the PathInfo object has been written on the the remote end. + // // The remote end MAY check if a potential DirectoryNode has already been // uploaded. + // // Uploading clients SHOULD obviously not steer other machines to try to // substitute before from the remote end before having finished uploading // PathInfo, Directories and Blobs. // The returned PathInfo object MAY contain additional narinfo signatures, // but is otherwise left untouched. Put(ctx context.Context, in *PathInfo, opts ...grpc.CallOption) (*PathInfo, error) + // Calculate the NAR representation of the contents specified by the + // root_node. The calculation SHOULD be cached server-side for subsequent + // requests. + // + // All references (to blobs or Directory messages) MUST already exist in + // the store. + // + // The method can be used to produce a Nix fixed-output path, which + // contains the (compressed) sha256 of the NAR content representation in + // the root_node name (suffixed with the name). + // + // It can also be used to calculate arbitrary NAR hashes of output paths, + // in case a legacy Nix Binary Cache frontend is provided. + CalculateNAR(ctx context.Context, in *Node, opts ...grpc.CallOption) (*CalculateNARResponse, error) } type pathInfoServiceClient struct { @@ -66,26 +83,52 @@ func (c *pathInfoServiceClient) Put(ctx context.Context, in *PathInfo, opts ...g return out, nil } +func (c *pathInfoServiceClient) CalculateNAR(ctx context.Context, in *Node, opts ...grpc.CallOption) (*CalculateNARResponse, error) { + out := new(CalculateNARResponse) + err := c.cc.Invoke(ctx, "/tvix.store.v1.PathInfoService/CalculateNAR", in, out, opts...) + if err != nil { + return nil, err + } + return out, nil +} + // PathInfoServiceServer is the server API for PathInfoService service. // All implementations must embed UnimplementedPathInfoServiceServer // for forward compatibility type PathInfoServiceServer interface { - // Get retrieves a PathInfo object, by using the lookup parameters in - // GetPathInfoRequest. - // If the PathInfo object contains a DirectoryNode, it needs to be looked - // up separately via the DirectoryService, which is purely - // content-addressed. + // Return a PathInfo message, identified by the decoded nixbase32 part + // of a Nix output path. + // + // To substitute /nix/store/xm35nga2g20mz5sm5l6n8v3bdm86yj83- + // cowsay-3.04 the bytes in the request would be + // nixbase32dec("xm35nga2g20mz5sm5l6n8v3bdm86yj83"). Get(context.Context, *GetPathInfoRequest) (*PathInfo, error) // Put uploads a PathInfo object to the remote end. It MUST not return // until the PathInfo object has been written on the the remote end. + // // The remote end MAY check if a potential DirectoryNode has already been // uploaded. + // // Uploading clients SHOULD obviously not steer other machines to try to // substitute before from the remote end before having finished uploading // PathInfo, Directories and Blobs. // The returned PathInfo object MAY contain additional narinfo signatures, // but is otherwise left untouched. Put(context.Context, *PathInfo) (*PathInfo, error) + // Calculate the NAR representation of the contents specified by the + // root_node. The calculation SHOULD be cached server-side for subsequent + // requests. + // + // All references (to blobs or Directory messages) MUST already exist in + // the store. + // + // The method can be used to produce a Nix fixed-output path, which + // contains the (compressed) sha256 of the NAR content representation in + // the root_node name (suffixed with the name). + // + // It can also be used to calculate arbitrary NAR hashes of output paths, + // in case a legacy Nix Binary Cache frontend is provided. + CalculateNAR(context.Context, *Node) (*CalculateNARResponse, error) mustEmbedUnimplementedPathInfoServiceServer() } @@ -99,6 +142,9 @@ func (UnimplementedPathInfoServiceServer) Get(context.Context, *GetPathInfoReque func (UnimplementedPathInfoServiceServer) Put(context.Context, *PathInfo) (*PathInfo, error) { return nil, status.Errorf(codes.Unimplemented, "method Put not implemented") } +func (UnimplementedPathInfoServiceServer) CalculateNAR(context.Context, *Node) (*CalculateNARResponse, error) { + return nil, status.Errorf(codes.Unimplemented, "method CalculateNAR not implemented") +} func (UnimplementedPathInfoServiceServer) mustEmbedUnimplementedPathInfoServiceServer() {} // UnsafePathInfoServiceServer may be embedded to opt out of forward compatibility for this service. @@ -148,6 +194,24 @@ func _PathInfoService_Put_Handler(srv interface{}, ctx context.Context, dec func return interceptor(ctx, in, info, handler) } +func _PathInfoService_CalculateNAR_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) { + in := new(Node) + if err := dec(in); err != nil { + return nil, err + } + if interceptor == nil { + return srv.(PathInfoServiceServer).CalculateNAR(ctx, in) + } + info := &grpc.UnaryServerInfo{ + Server: srv, + FullMethod: "/tvix.store.v1.PathInfoService/CalculateNAR", + } + handler := func(ctx context.Context, req interface{}) (interface{}, error) { + return srv.(PathInfoServiceServer).CalculateNAR(ctx, req.(*Node)) + } + return interceptor(ctx, in, info, handler) +} + // PathInfoService_ServiceDesc is the grpc.ServiceDesc for PathInfoService service. // It's only intended for direct use with grpc.RegisterService, // and not to be introspected or modified (even as a copy) @@ -163,6 +227,10 @@ var PathInfoService_ServiceDesc = grpc.ServiceDesc{ MethodName: "Put", Handler: _PathInfoService_Put_Handler, }, + { + MethodName: "CalculateNAR", + Handler: _PathInfoService_CalculateNAR_Handler, + }, }, Streams: []grpc.StreamDesc{}, Metadata: "tvix/store/protos/rpc_pathinfo.proto", -- cgit 1.4.1