Feature: generating protoflles with docker. (#4427)

* Gen proto files.

* Clean up.

* Fix.

* Buildx multiplatform.

* Added platform.

* Fix generate.

* Fix generate.

* Fix generate.

.travis.yml

@@ -22,13 +22,10 @@ install:
   - git clone https://github.com/harmony-one/harmony-test.git $GOPATH/src/github.com/harmony-one/harmony-test
   - (cd $GOPATH/src/github.com/harmony-one/mcl; make -j4)
   - (cd $GOPATH/src/github.com/harmony-one/bls; make BLS_SWAP_G=1 -j4)
-  - go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.26
-  - go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.1
 #  - curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.41.1
   - make go-get
   - go install golang.org/x/tools/cmd/goimports@latest
   - go install github.com/harmony-ek/gencodec@latest
-  - scripts/install_build_tools.sh
 script:
   - ${TEST}
 after_success:

Makefile

@@ -164,3 +164,6 @@ go-test:
 
 docker:
 	docker build --pull -t harmonyone/$(PKGNAME):latest -f scripts/docker/Dockerfile .
+
+travis_go_checker:
+	bash ./scripts/travis_go_checker.sh

api/proto/message/gen.sh

@@ -1 +1,3 @@
-protoc -I ./ message.proto --go_out=. --go-grpc_out=.
+#!/bin/bash
+
+docker run --platform linux/amd64 -v ${PWD}:/tmp ${PROTOC_IMAGE}  /tmp/message.proto

api/proto/message/message.go

@@ -1,3 +1,3 @@
 package message
 
-//go:generate protoc message.proto --go_out=. --go-grpc_out=.
+//go:generate ./gen.sh

api/proto/message/message.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.8
+// 	protoc-gen-go v1.30.0
+// 	protoc        v3.12.4
 // source: message.proto
 
 package message
@@ -25,9 +25,9 @@ type ServiceType int32
 
 const (
 	ServiceType_CONSENSUS ServiceType = 0
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	ServiceType_STAKING ServiceType = 1
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	ServiceType_DRAND          ServiceType = 2
 	ServiceType_CLIENT_SUPPORT ServiceType = 3
 )
@@ -79,7 +79,7 @@ func (ServiceType) EnumDescriptor() ([]byte, []int) {
 type MessageType int32
 
 const (
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	MessageType_NEWNODE_BEACON_STAKING MessageType = 0
 	MessageType_ANNOUNCE               MessageType = 1
 	MessageType_PREPARE                MessageType = 2
@@ -88,11 +88,11 @@ const (
 	MessageType_COMMITTED              MessageType = 5
 	MessageType_VIEWCHANGE             MessageType = 6
 	MessageType_NEWVIEW                MessageType = 7
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	MessageType_DRAND_INIT MessageType = 10
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	MessageType_DRAND_COMMIT MessageType = 11
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	MessageType_LOTTERY_REQUEST MessageType = 12 // it should be either ENTER or GETPLAYERS but it will be removed later.
 )
 
@@ -156,11 +156,11 @@ func (MessageType) EnumDescriptor() ([]byte, []int) {
 type LotteryRequest_Type int32
 
 const (
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	LotteryRequest_ENTER LotteryRequest_Type = 0
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	LotteryRequest_RESULT LotteryRequest_Type = 1
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	LotteryRequest_PICK_WINNER LotteryRequest_Type = 2
 )
 
@@ -288,7 +288,7 @@ func (m *Message) GetRequest() isMessage_Request {
 	return nil
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *Message) GetStaking() *StakingRequest {
 	if x, ok := x.GetRequest().(*Message_Staking); ok {
 		return x.Staking
@@ -303,7 +303,7 @@ func (x *Message) GetConsensus() *ConsensusRequest {
 	return nil
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *Message) GetDrand() *DrandRequest {
 	if x, ok := x.GetRequest().(*Message_Drand); ok {
 		return x.Drand
@@ -318,7 +318,7 @@ func (x *Message) GetViewchange() *ViewChangeRequest {
 	return nil
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *Message) GetLotteryRequest() *LotteryRequest {
 	if x, ok := x.GetRequest().(*Message_LotteryRequest); ok {
 		return x.LotteryRequest
@@ -331,7 +331,7 @@ type isMessage_Request interface {
 }
 
 type Message_Staking struct {
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	Staking *StakingRequest `protobuf:"bytes,4,opt,name=staking,proto3,oneof"`
 }
 
@@ -340,7 +340,7 @@ type Message_Consensus struct {
 }
 
 type Message_Drand struct {
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	Drand *DrandRequest `protobuf:"bytes,6,opt,name=drand,proto3,oneof"`
 }
 
@@ -351,7 +351,7 @@ type Message_Viewchange struct {
 type Message_LotteryRequest struct {
 	// Refactor this later after demo.
 	//
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	LotteryRequest *LotteryRequest `protobuf:"bytes,8,opt,name=lottery_request,json=lotteryRequest,proto3,oneof"`
 }
 
@@ -431,7 +431,7 @@ func (m *Response) GetResponse() isResponse_Response {
 	return nil
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *Response) GetLotteryResponse() *LotteryResponse {
 	if x, ok := x.GetResponse().(*Response_LotteryResponse); ok {
 		return x.LotteryResponse
@@ -444,7 +444,7 @@ type isResponse_Response interface {
 }
 
 type Response_LotteryResponse struct {
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	LotteryResponse *LotteryResponse `protobuf:"bytes,3,opt,name=lottery_response,json=lotteryResponse,proto3,oneof"`
 }
 
@@ -455,9 +455,9 @@ type LotteryResponse struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	Players []string `protobuf:"bytes,2,rep,name=players,proto3" json:"players,omitempty"`
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	Balances []string `protobuf:"bytes,3,rep,name=balances,proto3" json:"balances,omitempty"`
 }
 
@@ -493,7 +493,7 @@ func (*LotteryResponse) Descriptor() ([]byte, []int) {
 	return file_message_proto_rawDescGZIP(), []int{2}
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *LotteryResponse) GetPlayers() []string {
 	if x != nil {
 		return x.Players
@@ -501,7 +501,7 @@ func (x *LotteryResponse) GetPlayers() []string {
 	return nil
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *LotteryResponse) GetBalances() []string {
 	if x != nil {
 		return x.Balances
@@ -514,11 +514,11 @@ type LotteryRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	Type LotteryRequest_Type `protobuf:"varint,1,opt,name=type,proto3,enum=message.LotteryRequest_Type" json:"type,omitempty"`
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	PrivateKey string `protobuf:"bytes,2,opt,name=private_key,json=privateKey,proto3" json:"private_key,omitempty"`
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	Amount int64 `protobuf:"varint,3,opt,name=amount,proto3" json:"amount,omitempty"`
 }
 
@@ -554,7 +554,7 @@ func (*LotteryRequest) Descriptor() ([]byte, []int) {
 	return file_message_proto_rawDescGZIP(), []int{3}
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *LotteryRequest) GetType() LotteryRequest_Type {
 	if x != nil {
 		return x.Type
@@ -562,7 +562,7 @@ func (x *LotteryRequest) GetType() LotteryRequest_Type {
 	return LotteryRequest_ENTER
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *LotteryRequest) GetPrivateKey() string {
 	if x != nil {
 		return x.PrivateKey
@@ -570,7 +570,7 @@ func (x *LotteryRequest) GetPrivateKey() string {
 	return ""
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *LotteryRequest) GetAmount() int64 {
 	if x != nil {
 		return x.Amount
@@ -584,9 +584,9 @@ type StakingRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	Transaction []byte `protobuf:"bytes,1,opt,name=transaction,proto3" json:"transaction,omitempty"`
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	NodeId string `protobuf:"bytes,2,opt,name=node_id,json=nodeId,proto3" json:"node_id,omitempty"`
 }
 
@@ -622,7 +622,7 @@ func (*StakingRequest) Descriptor() ([]byte, []int) {
 	return file_message_proto_rawDescGZIP(), []int{4}
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *StakingRequest) GetTransaction() []byte {
 	if x != nil {
 		return x.Transaction
@@ -630,7 +630,7 @@ func (x *StakingRequest) GetTransaction() []byte {
 	return nil
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *StakingRequest) GetNodeId() string {
 	if x != nil {
 		return x.NodeId
@@ -746,13 +746,13 @@ type DrandRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	ShardId uint32 `protobuf:"varint,1,opt,name=shard_id,json=shardId,proto3" json:"shard_id,omitempty"`
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	SenderPubkey []byte `protobuf:"bytes,2,opt,name=sender_pubkey,json=senderPubkey,proto3" json:"sender_pubkey,omitempty"`
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	BlockHash []byte `protobuf:"bytes,3,opt,name=block_hash,json=blockHash,proto3" json:"block_hash,omitempty"`
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in message.proto.
 	Payload []byte `protobuf:"bytes,4,opt,name=payload,proto3" json:"payload,omitempty"`
 }
 
@@ -788,7 +788,7 @@ func (*DrandRequest) Descriptor() ([]byte, []int) {
 	return file_message_proto_rawDescGZIP(), []int{6}
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *DrandRequest) GetShardId() uint32 {
 	if x != nil {
 		return x.ShardId
@@ -796,7 +796,7 @@ func (x *DrandRequest) GetShardId() uint32 {
 	return 0
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *DrandRequest) GetSenderPubkey() []byte {
 	if x != nil {
 		return x.SenderPubkey
@@ -804,7 +804,7 @@ func (x *DrandRequest) GetSenderPubkey() []byte {
 	return nil
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *DrandRequest) GetBlockHash() []byte {
 	if x != nil {
 		return x.BlockHash
@@ -812,7 +812,7 @@ func (x *DrandRequest) GetBlockHash() []byte {
 	return nil
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in message.proto.
 func (x *DrandRequest) GetPayload() []byte {
 	if x != nil {
 		return x.Payload

api/proto/message/message_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.3.0
+// - protoc             v3.12.4
+// source: message.proto
 
 package message
 
@@ -14,6 +18,10 @@ import (
 // Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7
 
+const (
+	ClientService_Process_FullMethodName = "/message.ClientService/Process"
+)
+
 // ClientServiceClient is the client API for ClientService 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.
@@ -31,7 +39,7 @@ func NewClientServiceClient(cc grpc.ClientConnInterface) ClientServiceClient {
 
 func (c *clientServiceClient) Process(ctx context.Context, in *Message, opts ...grpc.CallOption) (*Response, error) {
 	out := new(Response)
-	err := c.cc.Invoke(ctx, "/message.ClientService/Process", in, out, opts...)
+	err := c.cc.Invoke(ctx, ClientService_Process_FullMethodName, in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -76,7 +84,7 @@ func _ClientService_Process_Handler(srv interface{}, ctx context.Context, dec fu
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/message.ClientService/Process",
+		FullMethod: ClientService_Process_FullMethodName,
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(ClientServiceServer).Process(ctx, req.(*Message))

api/service/legacysync/downloader/Proto.Dockerfile

@@ -0,0 +1,9 @@
+FROM golang:1.19-bullseye
+
+RUN apt update
+RUN apt install -y protobuf-compiler
+RUN protoc --version
+RUN go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.30.0
+RUN go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.3
+
+ENTRYPOINT ["protoc", "-I=/tmp", "--go_out=/tmp", "--go-grpc_out=/tmp"]

api/service/legacysync/downloader/build.sh

@@ -0,0 +1,4 @@
+
+# if command fails, try this
+# docker buildx create --use
+docker buildx build -t frozen621/harmony-proto:latest --platform linux/amd64,linux/arm64 -f Proto.Dockerfile --progress=plain .

api/service/legacysync/downloader/gen.sh

@@ -1,5 +0,0 @@
-# used versions
-#go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.26
-#go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.1
-SRC_DIR=$(dirname $0)
-protoc -I ${SRC_DIR}/proto/ ${SRC_DIR}/proto/downloader.proto --go_out=${SRC_DIR}/proto --go-grpc_out=${SRC_DIR}/proto

api/service/legacysync/downloader/proto/downloader.go

@@ -1,4 +1,5 @@
 package downloader
 
 ///go:generate protoc downloader.proto --go_out=plugins=grpc:.
-//go:generate protoc downloader.proto --go_out=. --go-grpc_out=.
+///go:generate protoc downloader.proto --go_out=. --go-grpc_out=.
+//go:generate ./gen.sh

api/service/legacysync/downloader/proto/downloader.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.8
+// 	protoc-gen-go v1.30.0
+// 	protoc        v3.12.4
 // source: downloader.proto
 
 package downloader

api/service/legacysync/downloader/proto/downloader_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.3.0
+// - protoc             v3.12.4
+// source: downloader.proto
 
 package downloader
 
@@ -14,6 +18,10 @@ import (
 // Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7
 
+const (
+	Downloader_Query_FullMethodName = "/downloader.Downloader/Query"
+)
+
 // DownloaderClient is the client API for Downloader 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.
@@ -31,7 +39,7 @@ func NewDownloaderClient(cc grpc.ClientConnInterface) DownloaderClient {
 
 func (c *downloaderClient) Query(ctx context.Context, in *DownloaderRequest, opts ...grpc.CallOption) (*DownloaderResponse, error) {
 	out := new(DownloaderResponse)
-	err := c.cc.Invoke(ctx, "/downloader.Downloader/Query", in, out, opts...)
+	err := c.cc.Invoke(ctx, Downloader_Query_FullMethodName, in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -76,7 +84,7 @@ func _Downloader_Query_Handler(srv interface{}, ctx context.Context, dec func(in
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/downloader.Downloader/Query",
+		FullMethod: Downloader_Query_FullMethodName,
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(DownloaderServer).Query(ctx, req.(*DownloaderRequest))

api/service/legacysync/downloader/proto/gen.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+# used versions
+#go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.26
+#go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.1
+#SRC_DIR=$(dirname $0)
+#protoc -I ${SRC_DIR}/proto/ ${SRC_DIR}/proto/downloader.proto --go_out=${SRC_DIR}/proto --go-grpc_out=${SRC_DIR}/proto
+
+docker run --platform linux/amd64 -v ${PWD}:/tmp ${PROTOC_IMAGE}  /tmp/downloader.proto

p2p/stream/protocols/sync/message/gen.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+docker run --platform linux/amd64 -v ${PWD}:/tmp ${PROTOC_IMAGE} /tmp/msg.proto

p2p/stream/protocols/sync/message/generate.go

@@ -1,3 +1,3 @@
 package message
 
-//go:generate protoc msg.proto --go_out=.
+//go:generate ./gen.sh

p2p/stream/protocols/sync/message/msg.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.8
+// 	protoc-gen-go v1.30.0
+// 	protoc        v3.12.4
 // source: msg.proto
 
 package message

scripts/gogenerate.sh

@@ -6,4 +6,4 @@ case "${0}" in
 *) progdir=.;;
 esac
 git grep -l '^//go:generate ' -- '*.go' | \
-	"${progdir}/xargs_by_dir.sh" go generate -v -x
+	PROTOC_IMAGE="frozen621/harmony-proto:latest" "${progdir}/xargs_by_dir.sh" go generate -v -x

scripts/install_build_tools.sh

@@ -1,15 +0,0 @@
-#!/bin/sh
-
-set -eu
-
-unset -v progdir
-case "${0}" in
-/*) progdir="/";;
-*/*) progdir="${0%/*}";;
-*) progdir=".";
-esac
-
-sed -n 's/^	_ "\([^"]*\)"$/\1/p' "${progdir}/../tools/tools.go" | \
-	xargs "${progdir}/goget.sh"
-
-"${progdir}/install_protoc.sh" -V 3.15.8

scripts/install_protoc.sh

@@ -1,66 +0,0 @@
-#!/usr/bin/env bash
-set -eu
-unset -v opt OPTIND OPTARG version platform destdir
-version=
-platform=
-destdir=/usr/local
-usage() {
-	case $# in
-	[1-9]*) echo "$@" >&2;;
-	esac
-	cat <<- ENDEND
-		usage: install_protoc.sh [-P platform] [-d destdir] -V version
-		options:
-		-V version	protobuf version
-		-P platform	fetch and use given platform (default: autodetect)
-		-d destdir	install into the given dir (default: /usr/local)
-		-h		print this help
-	ENDEND
-	exit 64
-}
-
-while getopts :V:P:d:h opt
-do
-	case "${opt}" in
-	V) version="${OPTARG}";;
-	P) platform="${OPTARG}";;
-	d) destdir="${OPTARG}";;
-	h) usage;;
-	"?") usage "unrecognized option -${OPTARG}";;
-	":") usage "missing argument for -${OPTARG}";;
-	*) echo "unhandled option -${OPTARG}" >&2; exit 70;;
-	esac
-done
-shift $((${OPTIND} - 1))
-case "${version}" in
-"") usage "protobuf version (-V) not specified";;
-esac
-case "${platform}" in
-"")
-	platform=$(uname -s)
-	case "${platform}" in
-	Darwin) platform=osx;;
-	Linux) platform=linux;;
-	*) echo "unsupported OS name (${platform})" >&2; exit 69;;
-	esac
-	arch=$(uname -m)
-	case "${arch}" in
-	aarch64) arch=aarch_64;;
-	esac
-	platform="${platform}-${arch}"
-	;;
-esac
-unset -v tmpdir
-trap 'case "${tmpdir-}" in ?*) rm -rf "${tmpdir}";; esac' EXIT
-tmpdir=$(mktemp -d)
-cd "${tmpdir}"
-unset -v filename url
-filename="protoc-${version}-${platform}.zip"
-url="https://github.com/protocolbuffers/protobuf/releases/download/v${version}/${filename}"
-echo "Downloading protoc v${version} for ${platform}..."
-curl -s -S -L -o "${filename}" "${url}"
-echo "Downloaded as ${filename}; unzipping into ${destdir}..."
-sudo unzip -o -d "${destdir}" "${filename}"
-echo "protoc v${version} has been installed in ${destdir}."
-sudo chmod +x "${destdir}/bin/protoc"
-exit 0