Use go tool to manage protoc plugins

Avoid any dependency on global GOBIN

Author: huww98

.github/workflows/build.yaml

@@ -10,15 +10,11 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-
-    - name: Set up Go 1.x
-      uses: actions/setup-go@v3
+      
+    - uses: actions/checkout@v4
+    - uses: actions/setup-go@v5
       with:
-        go-version: ^1.19
-      id: go
-
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v3
+        go-version-file: go.mod
 
     - name: Build Test
       run: |

go.mod

@@ -1,6 +1,11 @@
 module github.com/container-storage-interface/spec
 
-go 1.23.0
+go 1.24
+
+tool (
+	google.golang.org/grpc/cmd/protoc-gen-go-grpc
+	google.golang.org/protobuf/cmd/protoc-gen-go
+)
 
 require (
 	google.golang.org/grpc v1.57.1
@@ -13,4 +18,5 @@ require (
 	golang.org/x/sys v0.31.0 // indirect
 	golang.org/x/text v0.23.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20230803162519-f966b187b2e5 // indirect
+	google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.3.0 // indirect
 )

go.sum

@@ -12,5 +12,7 @@ google.golang.org/genproto/googleapis/rpc v0.0.0-20230803162519-f966b187b2e5 h1:
 google.golang.org/genproto/googleapis/rpc v0.0.0-20230803162519-f966b187b2e5/go.mod h1:zBEcrKX2ZOcEkHWxBPAIvYUWOKKMIhYcmNiUIu2ji3I=
 google.golang.org/grpc v1.57.1 h1:upNTNqv0ES+2ZOOqACwVtS3Il8M12/+Hz41RCPzAjQg=
 google.golang.org/grpc v1.57.1/go.mod h1:Sd+9RMTACXwmub0zcNY2c4arhtrbBYD1AUHI/dt16Mo=
+google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.3.0 h1:rNBFJjBCOgVr9pWD7rs/knKL4FRTKgpZmsRfV214zcA=
+google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.3.0/go.mod h1:Dk1tviKTvMCz5tvh7t+fh94dhmQVHuCt2OzJB3CTW9Y=
 google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
 google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=

lib/go/.gitignore

@@ -1,4 +1,3 @@
 /protoc
-/protoc-gen-go
 /csi.a
 /.protoc

lib/go/Makefile

@@ -1,25 +1,5 @@
 all: build
 
-########################################################################
-##                             GOLANG                                 ##
-########################################################################
-
-# If GOPATH isn't defined then set its default location.
-ifeq (,$(strip $(GOPATH)))
-GOPATH := $(HOME)/go
-else
-# If GOPATH is already set then update GOPATH to be its own
-# first element.
-GOPATH := $(word 1,$(subst :, ,$(GOPATH)))
-endif
-export GOPATH
-
-GOBIN := $(shell go env GOBIN)
-ifeq (,$(strip $(GOBIN)))
-GOBIN := $(GOPATH)/bin
-endif
-
-
 ########################################################################
 ##                             PROTOC                                 ##
 ########################################################################
@@ -46,28 +26,14 @@ PROTOC_URL := https://github.com/protocolbuffers/protobuf/releases/download/v$(P
 PROTOC_TMP_DIR := .protoc
 PROTOC := $(PROTOC_TMP_DIR)/bin/protoc
 
-$(GOBIN)/protoc-gen-go: ../../go.mod
-	go install google.golang.org/protobuf/cmd/protoc-gen-go
-$(GOBIN)/protoc-gen-go-grpc:
-	go install google.golang.org/grpc/cmd/[email protected]
-
 $(PROTOC):
 	-mkdir -p "$(PROTOC_TMP_DIR)" && \
 	  curl -L $(PROTOC_URL) -o "$(PROTOC_TMP_DIR)/$(PROTOC_ZIP)" && \
 	  unzip "$(PROTOC_TMP_DIR)/$(PROTOC_ZIP)" -d "$(PROTOC_TMP_DIR)" && \
 	  chmod 0755 "$@"
 	stat "$@" > /dev/null 2>&1
 
-PROTOC_ALL := $(GOBIN)/protoc-gen-go $(GOBIN)/protoc-gen-go-grpc $(PROTOC)
-
-########################################################################
-##                              PATH                                  ##
-########################################################################
-
-# Update PATH with GOBIN. This enables the protoc binary to discover
-# the protoc-gen-go binary
-export PATH := $(GOBIN):$(PATH)
-
+PROTOC_ALL := protoc-gen-go protoc-gen-go-grpc $(PROTOC)
 
 ########################################################################
 ##                              BUILD                                 ##
@@ -78,9 +44,10 @@ CSI_GO := $(CSI_PKG_SUB)/csi.pb.go
 CSI_GRPC := $(CSI_PKG_SUB)/csi_grpc.pb.go
 
 # This recipe generates the go language bindings
-$(CSI_GO) $(CSI_GRPC): $(CSI_PROTO) $(PROTOC_ALL)
+$(CSI_GO) $(CSI_GRPC): $(CSI_PROTO) $(PROTOC_ALL) ../../go.mod
 	@mkdir -p "$(@D)"
-	$(PROTOC) -I../.. --go-grpc_out=$(CSI_PKG_SUB) --go_out=$(CSI_PKG_SUB) \
+	$(PROTOC) --plugin=./protoc-gen-go --plugin=./protoc-gen-go-grpc \
+		-I../.. --go-grpc_out=$(CSI_PKG_SUB) --go_out=$(CSI_PKG_SUB) \
 		--go_opt=paths=source_relative --go-grpc_opt=paths=source_relative \
 		"$(<F)"
 

lib/go/protoc-gen-go

@@ -0,0 +1,2 @@
+#!/bin/sh
+go tool protoc-gen-go "$@"

lib/go/protoc-gen-go-grpc

@@ -0,0 +1,2 @@
+#!/bin/sh
+go tool protoc-gen-go-grpc "$@"