feat(tvix/build-go): init

This adds the generated golang bindings for tvix-build. Change-Id: I2eb0d1cc38bc2fa34afd7c904eea05c5ee192cce Reviewed-on: https://cl.tvl.fyi/c/depot/+/10242 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-12-09 16:28:00 +02:00 · 2023-12-09 16:28:00 +02:00 · a1b2dc8aaf
commit a1b2dc8aaf
parent fd27d8ddc3
9 changed files with 881 additions and 2 deletions
--- a/tvix/build-go/build.pb.go
+++ b/tvix/build-go/build.pb.go
@ -0,0 +1,508 @@
+// SPDX-License-Identifier: MIT
+// Copyright © 2022 The Tvix Authors
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.31.0
+// 	protoc        (unknown)
+// source: tvix/build/protos/build.proto
+
+package buildv1
+
+import (
+	castore_go "code.tvl.fyi/tvix/castore-go"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+// A BuildRequest describes the request of something to be run on the builder.
+// It is distinct from an actual [Build] that has already happened, or might be
+// currently ongoing.
+//
+// A BuildRequest can be seen as a more normalized version of a Derivation
+// (parsed from A-Term), "writing out" some of the Nix-internal details about
+// how e.g. environment variables in the build are set.
+//
+// Nix has some impurities when building a Derivation, for example the --cores option
+// ends up as an environment variable in the build, that's not part of the ATerm.
+//
+// As of now, we serialize this into the BuildRequest, so builders can stay dumb.
+// This might change in the future.
+//
+// There's also a big difference when it comes to how inputs are modelled:
+//   - Nix only uses store path (strings) to describe the inputs.
+//     As store paths can be input-addressed, a certain store path can contain
+//     different contents (as not all store paths are binary reproducible).
+//     This requires that for every input-addressed input, the builder has access
+//     to either the input's deriver (and needs to build it) or else a trusted
+//     source for the built input.
+//     to upload input-addressed paths, requiring the trusted users concept.
+//   - tvix-build records a list of tvix.castore.v1.Node as inputs.
+//     These map from the store path base name to their contents, relieving the
+//     builder from having to "trust" any input-addressed paths, contrary to Nix.
+//
+// While this approach gives a better hermeticity, it has one downside:
+// A BuildRequest can only be sent once the contents of all its inputs are known.
+//
+// As of now, we're okay to accept this, but it prevents uploading an
+// entirely-non-IFD subgraph of BuildRequests eagerly.
+//
+// FUTUREWORK: We might be introducing another way to refer to inputs, to
+// support "send all BuildRequest for a nixpkgs eval to a remote builder and put
+// the laptop to sleep" usecases later.
+type BuildRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// The command (and its args) executed as the build script.
+	// In the case of a Nix derivation, this is usually
+	// ["/path/to/some-bash/bin/bash", "-e", "/path/to/some/builder.sh"].
+	CommandArgs []string `protobuf:"bytes,1,rep,name=command_args,json=commandArgs,proto3" json:"command_args,omitempty"`
+	// The list of outputs the build is expected to produce.
+	// These are basenames inside /nix/store.
+	// If the path is not produced, the build is considered to have failed.
+	// Outputs are sorted.
+	Outputs []string `protobuf:"bytes,2,rep,name=outputs,proto3" json:"outputs,omitempty"`
+	// The list of environment variables and their values that should be set
+	// inside the build environment.
+	// This includes both environment vars set inside the derivation, as well as
+	// more "ephemeral" ones like NIX_BUILD_CORES, controlled by the `--cores`
+	// CLI option of `nix-build`.
+	// For now, we consume this as an option when turning a Derivation into a BuildRequest,
+	// similar to how Nix has a `--cores` option.
+	// We don't want to bleed these very nix-specific sandbox impl details into
+	// (dumber) builders if we don't have to.
+	// Environment variables are sorted by their keys.
+	EnvironmentVars []*BuildRequest_EnvVar `protobuf:"bytes,3,rep,name=environment_vars,json=environmentVars,proto3" json:"environment_vars,omitempty"`
+	// The list of all root nodes that should be visible in /nix/store at the
+	// time of the build.
+	// As root nodes are content-addressed, no additional signatures are needed
+	// to substitute / make these available in the build environment.
+	// Inputs are sorted by their names.
+	Inputs []*castore_go.Node `protobuf:"bytes,4,rep,name=inputs,proto3" json:"inputs,omitempty"`
+	// A set of constraints that need to be satisfied on a build host before a
+	// Build can be started.
+	Constraints *BuildRequest_BuildConstraints `protobuf:"bytes,5,opt,name=constraints,proto3" json:"constraints,omitempty"`
+}
+
+func (x *BuildRequest) Reset() {
+	*x = BuildRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_tvix_build_protos_build_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *BuildRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*BuildRequest) ProtoMessage() {}
+
+func (x *BuildRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_tvix_build_protos_build_proto_msgTypes[0]
+	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 BuildRequest.ProtoReflect.Descriptor instead.
+func (*BuildRequest) Descriptor() ([]byte, []int) {
+	return file_tvix_build_protos_build_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *BuildRequest) GetCommandArgs() []string {
+	if x != nil {
+		return x.CommandArgs
+	}
+	return nil
+}
+
+func (x *BuildRequest) GetOutputs() []string {
+	if x != nil {
+		return x.Outputs
+	}
+	return nil
+}
+
+func (x *BuildRequest) GetEnvironmentVars() []*BuildRequest_EnvVar {
+	if x != nil {
+		return x.EnvironmentVars
+	}
+	return nil
+}
+
+func (x *BuildRequest) GetInputs() []*castore_go.Node {
+	if x != nil {
+		return x.Inputs
+	}
+	return nil
+}
+
+func (x *BuildRequest) GetConstraints() *BuildRequest_BuildConstraints {
+	if x != nil {
+		return x.Constraints
+	}
+	return nil
+}
+
+// A Build is (one possible) outcome of executing a [BuildRequest].
+type Build struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// The orginal build request producing the build.
+	BuildRequest *BuildRequest `protobuf:"bytes,1,opt,name=build_request,json=buildRequest,proto3" json:"build_request,omitempty"` // <- TODO: define hashing scheme for BuildRequest, refer to it by hash?
+	// The outputs that were produced after successfully building.
+	// They are sorted by their names.
+	Outputs []*castore_go.Node `protobuf:"bytes,2,rep,name=outputs,proto3" json:"outputs,omitempty"`
+}
+
+func (x *Build) Reset() {
+	*x = Build{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_tvix_build_protos_build_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Build) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Build) ProtoMessage() {}
+
+func (x *Build) ProtoReflect() protoreflect.Message {
+	mi := &file_tvix_build_protos_build_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 Build.ProtoReflect.Descriptor instead.
+func (*Build) Descriptor() ([]byte, []int) {
+	return file_tvix_build_protos_build_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *Build) GetBuildRequest() *BuildRequest {
+	if x != nil {
+		return x.BuildRequest
+	}
+	return nil
+}
+
+func (x *Build) GetOutputs() []*castore_go.Node {
+	if x != nil {
+		return x.Outputs
+	}
+	return nil
+}
+
+type BuildRequest_EnvVar struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Key   string `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
+	Value []byte `protobuf:"bytes,2,opt,name=value,proto3" json:"value,omitempty"`
+}
+
+func (x *BuildRequest_EnvVar) Reset() {
+	*x = BuildRequest_EnvVar{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_tvix_build_protos_build_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *BuildRequest_EnvVar) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*BuildRequest_EnvVar) ProtoMessage() {}
+
+func (x *BuildRequest_EnvVar) ProtoReflect() protoreflect.Message {
+	mi := &file_tvix_build_protos_build_proto_msgTypes[2]
+	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 BuildRequest_EnvVar.ProtoReflect.Descriptor instead.
+func (*BuildRequest_EnvVar) Descriptor() ([]byte, []int) {
+	return file_tvix_build_protos_build_proto_rawDescGZIP(), []int{0, 0}
+}
+
+func (x *BuildRequest_EnvVar) GetKey() string {
+	if x != nil {
+		return x.Key
+	}
+	return ""
+}
+
+func (x *BuildRequest_EnvVar) GetValue() []byte {
+	if x != nil {
+		return x.Value
+	}
+	return nil
+}
+
+// BuildConstraints represents certain conditions that must be fulfilled
+// inside the build environment to be able to build this.
+// Constraints can be things like required architecture and minimum amount of memory.
+// The required input paths are *not* represented in here, because it
+// wouldn't be hermetic enough - see the comment around inputs too.
+type BuildRequest_BuildConstraints struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// The system that's needed to execute the build.
+	System string `protobuf:"bytes,1,opt,name=system,proto3" json:"system,omitempty"`
+	// The amount of memory required to be available for the build, in bytes.
+	MinMemory uint64 `protobuf:"varint,2,opt,name=min_memory,json=minMemory,proto3" json:"min_memory,omitempty"`
+	// A list of (absolute) paths that need to be available in the build
+	// environment.
+	// TBD, This is probably things like /dev/kvm, but no nix store paths.
+	AvailableRoPaths []string `protobuf:"bytes,3,rep,name=available_ro_paths,json=availableRoPaths,proto3" json:"available_ro_paths,omitempty"`
+}
+
+func (x *BuildRequest_BuildConstraints) Reset() {
+	*x = BuildRequest_BuildConstraints{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_tvix_build_protos_build_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *BuildRequest_BuildConstraints) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*BuildRequest_BuildConstraints) ProtoMessage() {}
+
+func (x *BuildRequest_BuildConstraints) ProtoReflect() protoreflect.Message {
+	mi := &file_tvix_build_protos_build_proto_msgTypes[3]
+	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 BuildRequest_BuildConstraints.ProtoReflect.Descriptor instead.
+func (*BuildRequest_BuildConstraints) Descriptor() ([]byte, []int) {
+	return file_tvix_build_protos_build_proto_rawDescGZIP(), []int{0, 1}
+}
+
+func (x *BuildRequest_BuildConstraints) GetSystem() string {
+	if x != nil {
+		return x.System
+	}
+	return ""
+}
+
+func (x *BuildRequest_BuildConstraints) GetMinMemory() uint64 {
+	if x != nil {
+		return x.MinMemory
+	}
+	return 0
+}
+
+func (x *BuildRequest_BuildConstraints) GetAvailableRoPaths() []string {
+	if x != nil {
+		return x.AvailableRoPaths
+	}
+	return nil
+}
+
+var File_tvix_build_protos_build_proto protoreflect.FileDescriptor
+
+var file_tvix_build_protos_build_proto_rawDesc = []byte{
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+	0x6f, 0x33,
+}
+
+var (
+	file_tvix_build_protos_build_proto_rawDescOnce sync.Once
+	file_tvix_build_protos_build_proto_rawDescData = file_tvix_build_protos_build_proto_rawDesc
+)
+
+func file_tvix_build_protos_build_proto_rawDescGZIP() []byte {
+	file_tvix_build_protos_build_proto_rawDescOnce.Do(func() {
+		file_tvix_build_protos_build_proto_rawDescData = protoimpl.X.CompressGZIP(file_tvix_build_protos_build_proto_rawDescData)
+	})
+	return file_tvix_build_protos_build_proto_rawDescData
+}
+
+var file_tvix_build_protos_build_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_tvix_build_protos_build_proto_goTypes = []interface{}{
+	(*BuildRequest)(nil),                  // 0: tvix.build.v1.BuildRequest
+	(*Build)(nil),                         // 1: tvix.build.v1.Build
+	(*BuildRequest_EnvVar)(nil),           // 2: tvix.build.v1.BuildRequest.EnvVar
+	(*BuildRequest_BuildConstraints)(nil), // 3: tvix.build.v1.BuildRequest.BuildConstraints
+	(*castore_go.Node)(nil),               // 4: tvix.castore.v1.Node
+}
+var file_tvix_build_protos_build_proto_depIdxs = []int32{
+	2, // 0: tvix.build.v1.BuildRequest.environment_vars:type_name -> tvix.build.v1.BuildRequest.EnvVar
+	4, // 1: tvix.build.v1.BuildRequest.inputs:type_name -> tvix.castore.v1.Node
+	3, // 2: tvix.build.v1.BuildRequest.constraints:type_name -> tvix.build.v1.BuildRequest.BuildConstraints
+	0, // 3: tvix.build.v1.Build.build_request:type_name -> tvix.build.v1.BuildRequest
+	4, // 4: tvix.build.v1.Build.outputs:type_name -> tvix.castore.v1.Node
+	5, // [5:5] is the sub-list for method output_type
+	5, // [5:5] is the sub-list for method input_type
+	5, // [5:5] is the sub-list for extension type_name
+	5, // [5:5] is the sub-list for extension extendee
+	0, // [0:5] is the sub-list for field type_name
+}
+
+func init() { file_tvix_build_protos_build_proto_init() }
+func file_tvix_build_protos_build_proto_init() {
+	if File_tvix_build_protos_build_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_tvix_build_protos_build_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*BuildRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_tvix_build_protos_build_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Build); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_tvix_build_protos_build_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*BuildRequest_EnvVar); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_tvix_build_protos_build_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*BuildRequest_BuildConstraints); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_tvix_build_protos_build_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   4,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_tvix_build_protos_build_proto_goTypes,
+		DependencyIndexes: file_tvix_build_protos_build_proto_depIdxs,
+		MessageInfos:      file_tvix_build_protos_build_proto_msgTypes,
+	}.Build()
+	File_tvix_build_protos_build_proto = out.File
+	file_tvix_build_protos_build_proto_rawDesc = nil
+	file_tvix_build_protos_build_proto_goTypes = nil
+	file_tvix_build_protos_build_proto_depIdxs = nil
+}