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Makefile: simplify validate-go-version 

Since Go 1.21 the go toolchain validates strictly the "go" version
directive in go.mod, and downloads and uses the requested toolchain if
necessary. See https://go.dev/doc/toolchain

So we can just run "go list" to tell the Go toolchain to validate our
build environment according to go.mod.

To extract the "go" directive version from go.mod (used to select the
Docker build image) we also use "go list".
This commit is contained in:
Olivier Mengué 2025-08-01 13:38:25 +02:00
parent 4eaa1bcfd5
commit 180ea47180
1 changed files with 7 additions and 16 deletions
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23
Makefile
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@ -36,13 +36,12 @@ REPOSITORY ?= oauth2-proxy
DATE := $(shell date +"%Y%m%d") DATE := $(shell date +"%Y%m%d")
.NOTPARALLEL: .NOTPARALLEL:
GO_MAJOR_VERSION = $(shell $(GO) version | cut -c 14- | cut -d' ' -f1 | cut -d'.' -f1) # The go version in go.mod used for the Docker build toolchain, without the patch
GO_MINOR_VERSION = $(shell $(GO) version | cut -c 14- | cut -d' ' -f1 | cut -d'.' -f2) GO_MOD_VERSION_MINOR := $(shell $(GO) list -f '{{printf "%.4s" .Module.GoVersion}}' )
GO_MOD_VERSION = $(shell sed -En 's/^go ([[:digit:]]\.[[:digit:]]+)\.[[:digit:]]+/\1/p' go.mod) # From go1.21 go will transparently download the toolchain declared in go.mod. https://go.dev/doc/toolchain
MINIMUM_SUPPORTED_GO_MAJOR_VERSION = $(shell echo ${GO_MOD_VERSION} | cut -d' ' -f1 | cut -d'.' -f1) # We don't need to keep this message updated: the important info is in go.mod.
MINIMUM_SUPPORTED_GO_MINOR_VERSION = $(shell echo ${GO_MOD_VERSION} | cut -d' ' -f1 | cut -d'.' -f2) GO_VERSION_VALIDATION_ERR_MSG = Golang version is not supported, please update to at least go1.21
GO_VERSION_VALIDATION_ERR_MSG = Golang version is not supported, please update to at least $(MINIMUM_SUPPORTED_GO_MAJOR_VERSION).$(MINIMUM_SUPPORTED_GO_MINOR_VERSION)
ifeq ($(COVER),true) ifeq ($(COVER),true)
TESTCOVER ?= -coverprofile c.out TESTCOVER ?= -coverprofile c.out
@ -56,7 +55,7 @@ build: validate-go-version clean $(BINARY) ## Build and create oauth2-proxy bina
$(BINARY): $(BINARY):
CGO_ENABLED=0 $(GO) build -a -installsuffix cgo -ldflags="-X github.com/oauth2-proxy/oauth2-proxy/v7/pkg/version.VERSION=${VERSION}" -o $@ github.com/oauth2-proxy/oauth2-proxy/v7 CGO_ENABLED=0 $(GO) build -a -installsuffix cgo -ldflags="-X github.com/oauth2-proxy/oauth2-proxy/v7/pkg/version.VERSION=${VERSION}" -o $@ github.com/oauth2-proxy/oauth2-proxy/v7
DOCKER_BUILDX_COMMON_ARGS ?= --build-arg BUILD_IMAGE=docker.io/library/golang:${GO_MOD_VERSION}-bookworm --build-arg VERSION=${VERSION} DOCKER_BUILDX_COMMON_ARGS ?= --build-arg BUILD_IMAGE=docker.io/library/golang:$(GO_MOD_VERSION_MINOR)-bookworm --build-arg VERSION=$(VERSION)
DOCKER_BUILD_PLATFORM ?= linux/amd64,linux/arm64,linux/ppc64le,linux/arm/v7,linux/s390x DOCKER_BUILD_PLATFORM ?= linux/amd64,linux/arm64,linux/ppc64le,linux/arm/v7,linux/s390x
DOCKER_BUILD_RUNTIME_IMAGE ?= gcr.io/distroless/static:nonroot DOCKER_BUILD_RUNTIME_IMAGE ?= gcr.io/distroless/static:nonroot
@ -158,15 +157,7 @@ lint: validate-go-version ## Lint all files using golangci-lint
.PHONY: validate-go-version .PHONY: validate-go-version
validate-go-version: ## Validate Go environment requirements validate-go-version: ## Validate Go environment requirements
@if [ $(GO_MAJOR_VERSION) -gt $(MINIMUM_SUPPORTED_GO_MAJOR_VERSION) ]; then \ @$(GO) list . >/dev/null || { echo '$(GO_VERSION_VALIDATION_ERR_MSG)'; exit 1; }
exit 0 ;\
elif [ $(GO_MAJOR_VERSION) -lt $(MINIMUM_SUPPORTED_GO_MAJOR_VERSION) ]; then \
echo '$(GO_VERSION_VALIDATION_ERR_MSG)';\
exit 1; \
elif [ $(GO_MINOR_VERSION) -lt $(MINIMUM_SUPPORTED_GO_MINOR_VERSION) ] ; then \
echo '$(GO_VERSION_VALIDATION_ERR_MSG)';\
exit 1; \
fi
# local-env can be used to interact with the local development environment # local-env can be used to interact with the local development environment
# eg: # eg: