Removes gogo/protobuf from buildx and updates to a version of
moby/buildkit where gogo is removed.
This also changes how the proto files are generated. This is because
newer versions of protobuf are more strict about name conflicts. If two
files have the same name (even if they are relative paths) and are used
in different protoc commands, they'll conflict in the registry.
Since protobuf file generation doesn't work very well with
`paths=source_relative`, this removes the `go:generate` expression and
just relies on the dockerfile to perform the generation.
Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>
An integration test for `docker buildx version` has been created. The
integration test checks that there is one line output, the output is
composed of three sections, and that these sections could feasibly be
the package path, version, and revision information.
The intention of the checks is to find obvious errors in the output like
the package path not existing or the version and revision being swapped.
It is not intended to assert that these values must be certain values
because it is assumed these values may vary depending on the build
process for buildx.
Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>
