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Makefile
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Makefile
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# Metadata about this makefile and position
MKFILE_PATH := $(lastword $(MAKEFILE_LIST))
CURRENT_DIR := $(patsubst %/,%,$(dir $(realpath $(MKFILE_PATH))))
# Ensure GOPATH
GOPATH ?= $(HOME)/go
# List all our actual files, excluding vendor
GOFILES ?= $(shell go list $(TEST) | grep -v /vendor/)
# Tags specific for building
GOTAGS ?=
# Number of procs to use
GOMAXPROCS ?= 4
# Get the project metadata
GOVERSION := 1.15.1
PROJECT := $(CURRENT_DIR:$(GOPATH)/src/%=%)
OWNER := $(notdir $(patsubst %/,%,$(dir $(PROJECT))))
NAME := $(notdir $(PROJECT))
GIT_COMMIT ?= $(shell git rev-parse --short HEAD)
VERSION := $(shell awk -F\" '/Version/ { print $$2; exit }' "${CURRENT_DIR}/version/version.go")
# Current system information
GOOS ?= $(shell go env GOOS)
GOARCH ?= $(shell go env GOARCH)
# Default os-arch combination to build
XC_OS ?= darwin freebsd linux netbsd openbsd solaris windows
XC_ARCH ?= 386 amd64 arm
XC_EXCLUDE ?= darwin/arm darwin/386 solaris/386 solaris/arm windows/arm
# GPG Signing key (blank by default, means no GPG signing)
GPG_KEY ?=
# List of ldflags
LD_FLAGS ?= \
-s \
-w \
-X ${PROJECT}/version.Name=${NAME} \
-X ${PROJECT}/version.GitCommit=${GIT_COMMIT}
# List of tests to run
TEST ?= ./...
# Create a cross-compile target for every os-arch pairing. This will generate
# a make target for each os/arch like "make linux/amd64" as well as generate a
# meta target (build) for compiling everything.
define make-xc-target
$1/$2:
ifneq (,$(findstring ${1}/${2},$(XC_EXCLUDE)))
@printf "%s%20s %s\n" "-->" "${1}/${2}:" "${PROJECT} (excluded)"
else
@printf "%s%20s %s\n" "-->" "${1}/${2}:" "${PROJECT}"
@docker run \
--interactive \
--rm \
--dns="8.8.8.8" \
--volume="${CURRENT_DIR}:/go/src/${PROJECT}" \
--workdir="/go/src/${PROJECT}" \
"golang:${GOVERSION}" \
env \
CGO_ENABLED="0" \
GOOS="${1}" \
GOARCH="${2}" \
go build \
-a \
-o="pkg/${1}_${2}/${NAME}${3}" \
-ldflags "${LD_FLAGS}" \
-tags "${GOTAGS}"
endif
.PHONY: $1/$2
$1:: $1/$2
.PHONY: $1
build:: $1/$2
.PHONY: build
endef
$(foreach goarch,$(XC_ARCH),$(foreach goos,$(XC_OS),$(eval $(call make-xc-target,$(goos),$(goarch),$(if $(findstring windows,$(goos)),.exe,)))))
# dev builds and installs the project locally.
dev:
@echo "==> Installing ${NAME} for ${GOOS}/${GOARCH}"
@rm -f "${GOPATH}/pkg/${GOOS}_${GOARCH}/${PROJECT}/version.a" # ldflags change and go doesn't detect
@env \
CGO_ENABLED="0" \
go install \
-ldflags "${LD_FLAGS}" \
-tags "${GOTAGS}"
.PHONY: dev
# dist builds the binaries and then signs and packages them for distribution
dist:
ifndef GPG_KEY
@echo "==> ERROR: No GPG key specified! Without a GPG key, this release cannot"
@echo " be signed. Set the environment variable GPG_KEY to the ID of"
@echo " the GPG key to continue."
@exit 127
else
@$(MAKE) -f "${MKFILE_PATH}" _cleanup
@$(MAKE) -f "${MKFILE_PATH}" -j4 build
@$(MAKE) -f "${MKFILE_PATH}" _compress _checksum _sign
endif
.PHONY: dist
# test runs the test suite.
test:
@echo "==> Testing ${NAME}"
@go test -timeout=30s -parallel=20 -tags="${GOTAGS}" ${GOFILES} ${TESTARGS}
.PHONY: test
# test-race runs the test suite.
test-race:
@echo "==> Testing ${NAME} (race)"
@go test -timeout=60s -race -tags="${GOTAGS}" ${GOFILES} ${TESTARGS}
.PHONY: test-race
# _cleanup removes any previous binaries
_cleanup:
@rm -rf "${CURRENT_DIR}/pkg/"
@rm -rf "${CURRENT_DIR}/bin/"
# _compress compresses all the binaries in pkg/* as tarball and zip.
_compress:
@mkdir -p "${CURRENT_DIR}/pkg/dist"
@for platform in $$(find ./pkg -mindepth 1 -maxdepth 1 -type d); do \
osarch=$$(basename "$$platform"); \
if [ "$$osarch" = "dist" ]; then \
continue; \
fi; \
\
ext=""; \
if test -z "$${osarch##*windows*}"; then \
ext=".exe"; \
fi; \
cd "$$platform"; \
tar -czf "${CURRENT_DIR}/pkg/dist/${NAME}_${VERSION}_$${osarch}.tgz" "${NAME}$${ext}"; \
zip -q "${CURRENT_DIR}/pkg/dist/${NAME}_${VERSION}_$${osarch}.zip" "${NAME}$${ext}"; \
cd - &>/dev/null; \
done
.PHONY: _compress
# _checksum produces the checksums for the binaries in pkg/dist
_checksum:
@cd "${CURRENT_DIR}/pkg/dist" && \
shasum --algorithm 256 * > ${CURRENT_DIR}/pkg/dist/${NAME}_${VERSION}_SHA256SUMS && \
cd - &>/dev/null
.PHONY: _checksum
# _sign signs the binaries using the given GPG_KEY. This should not be called
# as a separate function.
_sign:
@echo "==> Signing ${PROJECT} at v${VERSION}"
@gpg \
--default-key "${GPG_KEY}" \
--detach-sig "${CURRENT_DIR}/pkg/dist/${NAME}_${VERSION}_SHA256SUMS"
@git commit \
--allow-empty \
--gpg-sign="${GPG_KEY}" \
--message "Release v${VERSION}" \
--quiet \
--signoff
@git tag \
--annotate \
--create-reflog \
--local-user "${GPG_KEY}" \
--message "Version ${VERSION}" \
--sign \
"v${VERSION}" master
@echo "--> Do not forget to run:"
@echo ""
@echo " git push && git push --tags"
@echo ""
@echo "And then upload the binaries in dist/!"
.PHONY: _sign