vtproto is an extra protobuf compiler that generates special methods
suffixed with `VT` that create typed and unrolled marshal and unmarshal
functions similar to gogo that can be used for performance sensitive
code. These extensions are optional for code to use but buildkit uses
them.
A codec is also included to utilize vtproto for grpc code. If the
package `github.com/moby/buildkit/util/grpcutil/encoding/proto` is
imported then vtproto will be used if it exists and otherwise it will
use the standard marshaling and unmarshaling methods.
This codec has an important difference from the default codec. The
default codec will always reset messages before unmarshaling. In most
cases, this is unnecessary and is only relevant for `RecvMsg` on
streams. In most cases, if we are passing in an existing message to this
method, we want to reuse the buffers. This codec will always merge the
message when unmarshaling instead of resetting the input message.
Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>
The relative paths option for protoc generators doesn't work well when
it comes to dependencies. This simplifies the code generation to avoid
using `go generate` and to use one global command for protoc generation.
This is similar to https://github.com/docker/buildx/pull/2713 since the
same problems with code generation occur here too.
Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>
Remove gogoproto in favor of the standard protobuf compiler. This
removes any nonstandard extensions that were part of gogoproto such as
the custom types.
Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>
Helps detecting when uploadprovider has finished
with the source. This avoids deadlock, should the
same reader be shared by multiple uploads that sync
with each other.
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
