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Makefile
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Makefile
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BIN := slack_that
# Where to push the docker image.
REGISTRY ?= ${CONTAINER_REGISTRY}
# This version-strategy uses git tags to set the version string
VERSION := $(shell git describe --tags --always --dirty)
###
### These variables should not need tweaking.
###
GOFILES := $(shell find . -name "*.go" -not -path "./vendor/*")
GOFMT ?= gofmt "-s"
SRC_DIRS := cmd pkg internal # directories which hold app source (not vendored)
ALL_PLATFORMS := linux/amd64 darwin/amd64
# Used internally. Users should pass GOOS and/or GOARCH.
OS := $(if $(GOOS),$(GOOS),$(shell go env GOOS))
ARCH := $(if $(GOARCH),$(GOARCH),$(shell go env GOARCH))
BASEIMAGE ?= gcr.io/distroless/static
IMAGE := $(REGISTRY)/$(BIN)
TAG := $(VERSION)__$(OS)_$(ARCH)
BUILD_IMAGE ?= golang:1.13-alpine
# If you want to build all binaries, see the 'all-build' rule.
# If you want to build all containers, see the 'all-container' rule.
# If you want to build AND push all containers, see the 'all-push' rule.
all: build
build-%:
@$(MAKE) build \
--no-print-directory \
GOOS=$(firstword $(subst _, ,$*)) \
GOARCH=$(lastword $(subst _, ,$*))
container-%:
@$(MAKE) container \
--no-print-directory \
GOOS=$(firstword $(subst _, ,$*)) \
GOARCH=$(lastword $(subst _, ,$*))
push-%:
@$(MAKE) push \
--no-print-directory \
GOOS=$(firstword $(subst _, ,$*)) \
GOARCH=$(lastword $(subst _, ,$*))
all-build: $(addprefix build-, $(subst /,_, $(ALL_PLATFORMS)))
all-container: $(addprefix container-, $(subst /,_, $(ALL_PLATFORMS)))
all-push: $(addprefix push-, $(subst /,_, $(ALL_PLATFORMS)))
build: bin/$(OS)_$(ARCH)/$(BIN)
# Directories that we need created to build/test.
BUILD_DIRS := bin/$(OS)_$(ARCH) \
.go/bin/$(OS)_$(ARCH) \
.go/cache
# The following structure defeats Go's (intentional) behavior to always touch
# result files, even if they have not changed. This will still run `go` but
# will not trigger further work if nothing has actually changed.
OUTBIN = bin/$(OS)_$(ARCH)/$(BIN)
$(OUTBIN): .go/$(OUTBIN).stamp
@true
.PHONY: fmt
fmt:
$(GOFMT) -w $(GOFILES)
.PHONY: fmt-check
fmt-check:
@diff=$$($(GOFMT) -d $(GOFILES)); \
if [ -n "$$diff" ]; then \
echo "Please run 'make fmt' and commit the result:"; \
echo "$${diff}"; \
exit 1; \
fi;
# This will build the binary under ./.go and update the real binary iff needed.
.PHONY: .go/$(OUTBIN).stamp
.go/$(OUTBIN).stamp: $(BUILD_DIRS)
@echo "making $(OUTBIN)"
@docker run \
-i \
--rm \
-u $$(id -u):$$(id -g) \
-v $$(pwd):/src \
-w /src \
-v $$(pwd)/.go/bin/$(OS)_$(ARCH):/go/bin \
-v $$(pwd)/.go/bin/$(OS)_$(ARCH):/go/bin/$(OS)_$(ARCH) \
-v $$(pwd)/.go/cache:/.cache \
--env HTTP_PROXY=$(HTTP_PROXY) \
--env HTTPS_PROXY=$(HTTPS_PROXY) \
$(BUILD_IMAGE) \
/bin/sh -c " \
ARCH=$(ARCH) \
OS=$(OS) \
VERSION=$(VERSION) \
./build/build.sh \
"
@if ! cmp -s .go/$(OUTBIN) $(OUTBIN); then \
mv .go/$(OUTBIN) $(OUTBIN); \
date >$@; \
fi
# Example: make shell CMD="-c 'date > datefile'"
shell: $(BUILD_DIRS)
@echo "launching a shell in the containerized build environment"
@docker run \
-ti \
--rm \
-u $$(id -u):$$(id -g) \
-v $$(pwd):/src \
-w /src \
-v $$(pwd)/.go/bin/$(OS)_$(ARCH):/go/bin \
-v $$(pwd)/.go/bin/$(OS)_$(ARCH):/go/bin/$(OS)_$(ARCH) \
-v $$(pwd)/.go/cache:/.cache \
--env HTTP_PROXY=$(HTTP_PROXY) \
--env HTTPS_PROXY=$(HTTPS_PROXY) \
$(BUILD_IMAGE) \
/bin/sh $(CMD)
# Used to track state in hidden files.
DOTFILE_IMAGE = $(subst /,_,$(IMAGE))-$(TAG)
container: .container-$(DOTFILE_IMAGE) say_container_name
.container-$(DOTFILE_IMAGE): bin/$(OS)_$(ARCH)/$(BIN) ./build/Dockerfile.in
@sed \
-e 's|{ARG_BIN}|$(BIN)|g' \
-e 's|{ARG_ARCH}|$(ARCH)|g' \
-e 's|{ARG_OS}|$(OS)|g' \
-e 's|{ARG_FROM}|$(BASEIMAGE)|g' \
./build/Dockerfile.in > Dockerfile-$(OS)_$(ARCH)
@docker build -t $(IMAGE):$(TAG) -f Dockerfile-$(OS)_$(ARCH) .
@docker images -q $(IMAGE):$(TAG) > $@
say_container_name:
@echo "container: $(IMAGE):$(TAG)"
push: .push-$(DOTFILE_IMAGE) say_push_name
.push-$(DOTFILE_IMAGE): .container-$(DOTFILE_IMAGE)
@docker push $(IMAGE):$(TAG)
say_push_name:
@echo "pushed: $(IMAGE):$(TAG)"
manifest-list: all-push
platforms=$$(echo $(ALL_PLATFORMS) | sed 's/ /,/g'); \
manifest-tool \
--username=oauth2accesstoken \
--password=$$(gcloud auth print-access-token) \
push from-args \
--platforms "$$platforms" \
--template $(REGISTRY)/$(BIN):$(VERSION)__OS_ARCH \
--target $(REGISTRY)/$(BIN):$(VERSION)
version:
@echo $(VERSION)
test: $(BUILD_DIRS)
@docker run \
-i \
--rm \
-u $$(id -u):$$(id -g) \
-v $$(pwd):/src \
-w /src \
-v $$(pwd)/.go/bin/$(OS)_$(ARCH):/go/bin \
-v $$(pwd)/.go/bin/$(OS)_$(ARCH):/go/bin/$(OS)_$(ARCH) \
-v $$(pwd)/.go/cache:/.cache \
--env HTTP_PROXY=$(HTTP_PROXY) \
--env HTTPS_PROXY=$(HTTPS_PROXY) \
$(BUILD_IMAGE) \
/bin/sh -c " \
ARCH=$(ARCH) \
OS=$(OS) \
VERSION=$(VERSION) \
./build/test.sh $(SRC_DIRS) \
"
$(BUILD_DIRS):
@mkdir -p $@
clean: container-clean bin-clean
container-clean:
rm -rf .container-* Dockerfile-* .push-*
bin-clean:
rm -rf .go bin