mirror of
https://gitea.com/Lydanne/buildx.git
synced 2025-05-18 09:17:49 +08:00
b35a0f4718
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>
82 lines
2.5 KiB
Go
82 lines
2.5 KiB
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package impl
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import (
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"bytes"
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"compress/gzip"
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"io"
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"sync"
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"google.golang.org/protobuf/internal/filedesc"
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"google.golang.org/protobuf/reflect/protoreflect"
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"google.golang.org/protobuf/reflect/protoregistry"
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)
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// Every enum and message type generated by protoc-gen-go since commit 2fc053c5
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// on February 25th, 2016 has had a method to get the raw descriptor.
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// Types that were not generated by protoc-gen-go or were generated prior
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// to that version are not supported.
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//
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// The []byte returned is the encoded form of a FileDescriptorProto message
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// compressed using GZIP. The []int is the path from the top-level file
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// to the specific message or enum declaration.
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type (
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enumV1 interface {
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EnumDescriptor() ([]byte, []int)
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}
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messageV1 interface {
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Descriptor() ([]byte, []int)
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}
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)
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var legacyFileDescCache sync.Map // map[*byte]protoreflect.FileDescriptor
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// legacyLoadFileDesc unmarshals b as a compressed FileDescriptorProto message.
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//
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// This assumes that b is immutable and that b does not refer to part of a
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// concatenated series of GZIP files (which would require shenanigans that
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// rely on the concatenation properties of both protobufs and GZIP).
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// File descriptors generated by protoc-gen-go do not rely on that property.
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func legacyLoadFileDesc(b []byte) protoreflect.FileDescriptor {
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// Fast-path: check whether we already have a cached file descriptor.
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if fd, ok := legacyFileDescCache.Load(&b[0]); ok {
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return fd.(protoreflect.FileDescriptor)
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}
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// Slow-path: decompress and unmarshal the file descriptor proto.
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zr, err := gzip.NewReader(bytes.NewReader(b))
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if err != nil {
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panic(err)
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}
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b2, err := io.ReadAll(zr)
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if err != nil {
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panic(err)
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}
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fd := filedesc.Builder{
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RawDescriptor: b2,
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FileRegistry: resolverOnly{protoregistry.GlobalFiles}, // do not register back to global registry
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}.Build().File
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if fd, ok := legacyFileDescCache.LoadOrStore(&b[0], fd); ok {
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return fd.(protoreflect.FileDescriptor)
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}
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return fd
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}
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type resolverOnly struct {
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reg *protoregistry.Files
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}
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func (r resolverOnly) FindFileByPath(path string) (protoreflect.FileDescriptor, error) {
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return r.reg.FindFileByPath(path)
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}
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func (r resolverOnly) FindDescriptorByName(name protoreflect.FullName) (protoreflect.Descriptor, error) {
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return r.reg.FindDescriptorByName(name)
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}
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func (resolverOnly) RegisterFile(protoreflect.FileDescriptor) error {
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return nil
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}
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