refactor(tvix): move castore into tvix-castore crate r/6629

This splits the pure content-addressed layers from tvix-store into a
`castore` crate, and only leaves PathInfo related things, as well as the
CLI entrypoint in the tvix-store crate.

Notable changes:
 - `fixtures` and `utils` had to be moved out of the `test` cfg, so they
   can be imported from tvix-store.
 - Some ad-hoc fixtures in the test were moved to proper fixtures in the
   same step.
 - The protos are now created by a (more static) recipe in the protos/
   directory.

The (now two) golang targets are commented out, as it's not possible to
update them properly in the same CL. This will be done by a followup CL
once this is merged (and whitby deployed)

Bug: https://b.tvl.fyi/issues/301

Change-Id: I8d675d4bf1fb697eb7d479747c1b1e3635718107
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9370
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>

1 files changed, 0 insertions, 274 deletions

diff --git a/tvix/store/protos/rpc_blobstore_grpc.pb.go b/tvix/store/protos/rpc_blobstore_grpc.pb.go
deleted file mode 100644
index 531ebcd2c637..000000000000
--- a/tvix/store/protos/rpc_blobstore_grpc.pb.go
+++ /dev/null
@@ -1,274 +0,0 @@
-// SPDX-License-Identifier: MIT
-// Copyright © 2022 The Tvix Authors
-
-// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
-// versions:
-// - protoc-gen-go-grpc v1.3.0
-// - protoc             (unknown)
-// source: tvix/store/protos/rpc_blobstore.proto
-
-package storev1
-
-import (
-	context "context"
-	grpc "google.golang.org/grpc"
-	codes "google.golang.org/grpc/codes"
-	status "google.golang.org/grpc/status"
-)
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.32.0 or later.
-const _ = grpc.SupportPackageIsVersion7
-
-const (
-	BlobService_Stat_FullMethodName = "/tvix.store.v1.BlobService/Stat"
-	BlobService_Read_FullMethodName = "/tvix.store.v1.BlobService/Read"
-	BlobService_Put_FullMethodName  = "/tvix.store.v1.BlobService/Put"
-)
-
-// BlobServiceClient is the client API for BlobService service.
-//
-// 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 BlobServiceClient interface {
-	// In the future, Stat will expose more metadata about a given blob,
-	// such as more granular chunking, baos.
-	// For now, it's only used to check for the existence of a blob, as asking
-	// this for a non-existing Blob will return a Status::not_found gRPC error.
-	Stat(ctx context.Context, in *StatBlobRequest, opts ...grpc.CallOption) (*BlobMeta, error)
-	// Read returns a stream of BlobChunk, which is just a stream of bytes with
-	// the digest specified in ReadBlobRequest.
-	//
-	// The server may decide on whatever chunking it may seem fit as a size for
-	// the individual BlobChunk sent in the response stream.
-	Read(ctx context.Context, in *ReadBlobRequest, opts ...grpc.CallOption) (BlobService_ReadClient, error)
-	// Put uploads a Blob, by reading a stream of bytes.
-	//
-	// The way the data is chunked up in individual BlobChunk messages sent in
-	// the stream has no effect on how the server ends up chunking blobs up.
-	Put(ctx context.Context, opts ...grpc.CallOption) (BlobService_PutClient, error)
-}
-
-type blobServiceClient struct {
-	cc grpc.ClientConnInterface
-}
-
-func NewBlobServiceClient(cc grpc.ClientConnInterface) BlobServiceClient {
-	return &blobServiceClient{cc}
-}
-
-func (c *blobServiceClient) Stat(ctx context.Context, in *StatBlobRequest, opts ...grpc.CallOption) (*BlobMeta, error) {
-	out := new(BlobMeta)
-	err := c.cc.Invoke(ctx, BlobService_Stat_FullMethodName, in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *blobServiceClient) Read(ctx context.Context, in *ReadBlobRequest, opts ...grpc.CallOption) (BlobService_ReadClient, error) {
-	stream, err := c.cc.NewStream(ctx, &BlobService_ServiceDesc.Streams[0], BlobService_Read_FullMethodName, opts...)
-	if err != nil {
-		return nil, err
-	}
-	x := &blobServiceReadClient{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 BlobService_ReadClient interface {
-	Recv() (*BlobChunk, error)
-	grpc.ClientStream
-}
-
-type blobServiceReadClient struct {
-	grpc.ClientStream
-}
-
-func (x *blobServiceReadClient) Recv() (*BlobChunk, error) {
-	m := new(BlobChunk)
-	if err := x.ClientStream.RecvMsg(m); err != nil {
-		return nil, err
-	}
-	return m, nil
-}
-
-func (c *blobServiceClient) Put(ctx context.Context, opts ...grpc.CallOption) (BlobService_PutClient, error) {
-	stream, err := c.cc.NewStream(ctx, &BlobService_ServiceDesc.Streams[1], BlobService_Put_FullMethodName, opts...)
-	if err != nil {
-		return nil, err
-	}
-	x := &blobServicePutClient{stream}
-	return x, nil
-}
-
-type BlobService_PutClient interface {
-	Send(*BlobChunk) error
-	CloseAndRecv() (*PutBlobResponse, error)
-	grpc.ClientStream
-}
-
-type blobServicePutClient struct {
-	grpc.ClientStream
-}
-
-func (x *blobServicePutClient) Send(m *BlobChunk) error {
-	return x.ClientStream.SendMsg(m)
-}
-
-func (x *blobServicePutClient) CloseAndRecv() (*PutBlobResponse, error) {
-	if err := x.ClientStream.CloseSend(); err != nil {
-		return nil, err
-	}
-	m := new(PutBlobResponse)
-	if err := x.ClientStream.RecvMsg(m); err != nil {
-		return nil, err
-	}
-	return m, nil
-}
-
-// BlobServiceServer is the server API for BlobService service.
-// All implementations must embed UnimplementedBlobServiceServer
-// for forward compatibility
-type BlobServiceServer interface {
-	// In the future, Stat will expose more metadata about a given blob,
-	// such as more granular chunking, baos.
-	// For now, it's only used to check for the existence of a blob, as asking
-	// this for a non-existing Blob will return a Status::not_found gRPC error.
-	Stat(context.Context, *StatBlobRequest) (*BlobMeta, error)
-	// Read returns a stream of BlobChunk, which is just a stream of bytes with
-	// the digest specified in ReadBlobRequest.
-	//
-	// The server may decide on whatever chunking it may seem fit as a size for
-	// the individual BlobChunk sent in the response stream.
-	Read(*ReadBlobRequest, BlobService_ReadServer) error
-	// Put uploads a Blob, by reading a stream of bytes.
-	//
-	// The way the data is chunked up in individual BlobChunk messages sent in
-	// the stream has no effect on how the server ends up chunking blobs up.
-	Put(BlobService_PutServer) error
-	mustEmbedUnimplementedBlobServiceServer()
-}
-
-// UnimplementedBlobServiceServer must be embedded to have forward compatible implementations.
-type UnimplementedBlobServiceServer struct {
-}
-
-func (UnimplementedBlobServiceServer) Stat(context.Context, *StatBlobRequest) (*BlobMeta, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method Stat not implemented")
-}
-func (UnimplementedBlobServiceServer) Read(*ReadBlobRequest, BlobService_ReadServer) error {
-	return status.Errorf(codes.Unimplemented, "method Read not implemented")
-}
-func (UnimplementedBlobServiceServer) Put(BlobService_PutServer) error {
-	return status.Errorf(codes.Unimplemented, "method Put not implemented")
-}
-func (UnimplementedBlobServiceServer) mustEmbedUnimplementedBlobServiceServer() {}
-
-// UnsafeBlobServiceServer may be embedded to opt out of forward compatibility for this service.
-// Use of this interface is not recommended, as added methods to BlobServiceServer will
-// result in compilation errors.
-type UnsafeBlobServiceServer interface {
-	mustEmbedUnimplementedBlobServiceServer()
-}
-
-func RegisterBlobServiceServer(s grpc.ServiceRegistrar, srv BlobServiceServer) {
-	s.RegisterService(&BlobService_ServiceDesc, srv)
-}
-
-func _BlobService_Stat_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(StatBlobRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(BlobServiceServer).Stat(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: BlobService_Stat_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(BlobServiceServer).Stat(ctx, req.(*StatBlobRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _BlobService_Read_Handler(srv interface{}, stream grpc.ServerStream) error {
-	m := new(ReadBlobRequest)
-	if err := stream.RecvMsg(m); err != nil {
-		return err
-	}
-	return srv.(BlobServiceServer).Read(m, &blobServiceReadServer{stream})
-}
-
-type BlobService_ReadServer interface {
-	Send(*BlobChunk) error
-	grpc.ServerStream
-}
-
-type blobServiceReadServer struct {
-	grpc.ServerStream
-}
-
-func (x *blobServiceReadServer) Send(m *BlobChunk) error {
-	return x.ServerStream.SendMsg(m)
-}
-
-func _BlobService_Put_Handler(srv interface{}, stream grpc.ServerStream) error {
-	return srv.(BlobServiceServer).Put(&blobServicePutServer{stream})
-}
-
-type BlobService_PutServer interface {
-	SendAndClose(*PutBlobResponse) error
-	Recv() (*BlobChunk, error)
-	grpc.ServerStream
-}
-
-type blobServicePutServer struct {
-	grpc.ServerStream
-}
-
-func (x *blobServicePutServer) SendAndClose(m *PutBlobResponse) error {
-	return x.ServerStream.SendMsg(m)
-}
-
-func (x *blobServicePutServer) Recv() (*BlobChunk, error) {
-	m := new(BlobChunk)
-	if err := x.ServerStream.RecvMsg(m); err != nil {
-		return nil, err
-	}
-	return m, nil
-}
-
-// BlobService_ServiceDesc is the grpc.ServiceDesc for BlobService service.
-// It's only intended for direct use with grpc.RegisterService,
-// and not to be introspected or modified (even as a copy)
-var BlobService_ServiceDesc = grpc.ServiceDesc{
-	ServiceName: "tvix.store.v1.BlobService",
-	HandlerType: (*BlobServiceServer)(nil),
-	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "Stat",
-			Handler:    _BlobService_Stat_Handler,
-		},
-	},
-	Streams: []grpc.StreamDesc{
-		{
-			StreamName:    "Read",
-			Handler:       _BlobService_Read_Handler,
-			ServerStreams: true,
-		},
-		{
-			StreamName:    "Put",
-			Handler:       _BlobService_Put_Handler,
-			ClientStreams: true,
-		},
-	},
-	Metadata: "tvix/store/protos/rpc_blobstore.proto",
-}