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etags/Makefile

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Makefile
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first makefile attempt
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# Copyright 2016 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# The binaries to build (just the basenames).
BINS := etags
# Where to push the docker image.
REGISTRY ?= r-push.lerch.org
# This version-strategy uses git tags to set the version string
VERSION ?= $(shell git describe --tags --always --dirty)
#
# This version-strategy uses a manual value to set the version string
#VERSION ?= 1.2.3
###
### These variables should not need tweaking.
###
DKR := $(shell if command -v docker > /dev/null 2>&1; then echo "docker"; else echo "podman"; fi)
# Rootless podman, "root" in the shell will be the uid of the user
UID ?= $(shell if [ "$(DKR)" = "podman" ]; then echo 0; else id -u; fi)
GID ?= $(shell if [ "$(DKR)" = "podman" ]; then echo 0; else id -g; fi)
SRC_DIRS := cmd pkg # directories which hold app source (not vendored)
# Windows not working atm
#ALL_PLATFORMS := linux/amd64 linux/arm linux/arm64 linux/ppc64le linux/s390x
# Unlikely I'll run on ppc or s390x anytime soon
ALL_PLATFORMS := linux/amd64 linux/arm linux/arm64
# Used internally. Users should pass BUILDOS and/or BUILDARCH.
# guess if go isn't installed on the host
OS := $(if $(BUILDOS),$(BUILDOS),$(shell go env BUILDOS 2>/dev/null || uname -s | tr '[:upper:]' '[:lower:]'))
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HOSTARCH := $(shell uname -m)
HOSTARCH := $(if $(findstring armv5,$(HOSTARCH)),armv5,$(HOSTARCH))
HOSTARCH := $(if $(findstring armv5,$(HOSTARCH)),armv5,$(HOSTARCH))
HOSTARCH := $(if $(findstring armv6,$(HOSTARCH)),armv6,$(HOSTARCH))
HOSTARCH := $(if $(findstring armv7,$(HOSTARCH)),armv7,$(HOSTARCH))
HOSTARCH := $(if $(subst aarch64,,$(HOSTARCH)),$(HOSTARCH),arm64)
HOSTARCH := $(if $(subst x86,,$(HOSTARCH)),$(HOSTARCH),386)
HOSTARCH := $(if $(subst x86_64,,$(HOSTARCH)),$(HOSTARCH),amd64)
HOSTARCH := $(if $(subst i686,,$(HOSTARCH)),$(HOSTARCH),386)
HOSTARCH := $(if $(subst i386,,$(HOSTARCH)),$(HOSTARCH),386)
ARCH := $(if $(BUILDARCH),$(BUILDARCH),$(HOSTARCH))
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TAG := $(VERSION)__$(OS)_$(ARCH)
BUILD_IMAGE ?= python:3.8.7-alpine3.12
# For the following OS/ARCH expansions, we transform OS/ARCH into OS_ARCH
# because make pattern rules don't match with embedded '/' characters.
container-%:
@$(MAKE) container \
--no-print-directory \
GOOS=$(firstword $(subst _, ,$*)) \
GOARCH=$(lastword $(subst _, ,$*))\
BUILDOS=$(firstword $(subst _, ,$*)) \
BUILDARCH=$(lastword $(subst _, ,$*))
push-%:
@$(MAKE) push \
--no-print-directory \
BUILDOS=$(firstword $(subst _, ,$*)) \
BUILDARCH=$(lastword $(subst _, ,$*))
all-container: # @HELP builds containers for all platforms
all-container: $(addprefix container-, $(subst /,_, $(ALL_PLATFORMS)))
all-push: # @HELP pushes containers for all platforms to the defined registry
all-push: $(addprefix push-, $(subst /,_, $(ALL_PLATFORMS)))
CONTAINER_DOTFILES = $(foreach bin,$(BINS),.container-$(subst /,_,$(REGISTRY)/$(bin))-$(TAG))
container containers: # @HELP builds containers for one platform ($OS/$ARCH)
container containers: $(CONTAINER_DOTFILES)
@for bin in $(BINS); do \
echo "container: $(REGISTRY)/$$bin:$(TAG)"; \
done
# Each container-dotfile target can reference a $(BIN) variable.
# This is done in 2 steps to enable target-specific variables.
$(foreach bin,$(BINS),$(eval $(strip \
.container-$(subst /,_,$(REGISTRY)/$(bin))-$(TAG): BIN = $(bin) \
)))
$(foreach bin,$(BINS),$(eval \
.container-$(subst /,_,$(REGISTRY)/$(bin))-$(TAG): Dockerfile \
))
# This is the target definition for all container-dotfiles.
# These are used to track build state in hidden files.
$(CONTAINER_DOTFILES):
@sed \
-e 's|{ARG_BIN}|$(BIN)|g' \
-e 's|{ARG_ARCH}|$(ARCH)|g' \
-e 's|{ARG_OS}|$(OS)|g' \
Dockerfile > .dockerfile-$(BIN)-$(OS)_$(ARCH)
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@export DOCKER_CLI_EXPERIMENTAL=enabled && \
if $(DKR) --version | grep -q podman; then \
[ "$(HOSTARCH)" != "$(ARCH)" ] && \
buildx not necessary (see details below) Without buildx you need to seriously watch your cache. Ultimately the solution here still as a hole, because the FROM image(s) in the Dockerfile will end up cached in whatever architecture goes last. We are relying on the build server not caching things, but be wary when doing local multi-architecture builds
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echo "Podman build on different arch is likely broken" && \
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echo "See: https://github.com/containers/buildah/issues/1590"; \
$(DKR) build --platform $(OS)/$(ARCH) -t $(REGISTRY)/$(BIN):$(TAG) \
-f .dockerfile-$(BIN)-$(OS)_$(ARCH) .; \
else \
removing the conditional - just forcing --pull/--no-cache all the time
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$(DKR) build --pull --no-cache \
-t $(REGISTRY)/$(BIN):$(TAG) -f .dockerfile-$(BIN)-$(OS)_$(ARCH) \
--platform $(OS)/$(ARCH) \
. ; \
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fi
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@$(DKR) images -q $(REGISTRY)/$(BIN):$(TAG) > $@
@echo
push: # @HELP pushes the container for one platform ($OS/$ARCH) to the defined registry
push: $(CONTAINER_DOTFILES)
@for bin in $(BINS); do \
$(DKR) push $(REGISTRY)/$$bin:$(TAG); \
done
# TODO: podman and docker are pretty different wrt manifests and workflow here
# docker is experimental CLI and requires pushed images (which then should probably
# be untagged on the server), podman can push everything at once when the manifest
# is cleaned
manifest-list: # @HELP builds a manifest list of containers for all platforms
manifest-list: all-container
@export DOCKER_CLI_EXPERIMENTAL=enabled && \
if $(DKR) --version | grep -q podman; then \
for bin in $(BINS); do \
$(DKR) manifest create $(REGISTRY)/$$bin:$(VERSION); \
for platform in $(ALL_PLATFORMS); do \
$(DKR) manifest add --arch $$(echo $$platform | cut -d/ -f2) \
$(REGISTRY)/$$bin:$(VERSION) \
$(REGISTRY)/$$bin:$(VERSION)__$$(echo $$platform | sed 's#/#_#g'); \
done; \
$(DKR) manifest push --all $(REGISTRY)/$$bin:$(VERSION) \
docker://$(REGISTRY)/$$bin:$(VERSION); \
done; \
else \
for bin in $(BINS); do \
cmd="$(DKR) manifest create $(REGISTRY)/$$bin:$(VERSION)"; \
for platform in $(ALL_PLATFORMS); do \
cmd="$$cmd $(REGISTRY)/$$bin:$(VERSION)__$$(echo $$platform | sed 's#/#_#g')"; \
$(DKR) push $(REGISTRY)/$$bin:$(VERSION)__$$(echo $$platform | sed 's#/#_#g'); \
done; \
eval "$$cmd"; \
for platform in $(ALL_PLATFORMS); do \
$(DKR) manifest annotate --arch $$(echo $$platform | cut -d/ -f2) \
$(REGISTRY)/$$bin:$(VERSION) \
$(REGISTRY)/$$bin:$(VERSION)__$$(echo $$platform | sed 's#/#_#g'); \
done; \
$(DKR) manifest push $(REGISTRY)/$$bin:$(VERSION); \
done; \
fi
version: # @HELP outputs the version string
version:
@echo $(VERSION)
test: # @HELP runs tests, as defined in ./build/test.sh (not yet implemented)
test: $(BUILD_DIRS)
@$(DKR) run \
-i \
--rm \
-u $(UID):$(GID) \
-v $$(pwd):/src \
-w /src \
--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: # @HELP removes built binaries and temporary files
clean: container-clean bin-clean
container-clean:
@rm -rf .container-* .dockerfile-*; \
for bin in $(BINS); do \
if $(DKR) --version |grep -q podman; then \
$(DKR) image exists "$(REGISTRY)/$$bin:$(VERSION)" && \
$(DKR) image rm "$(REGISTRY)/$$bin:$(VERSION)"; \
else \
$(DKR) image rm "$(REGISTRY)/$$bin:$(VERSION)"; \
fi; \
for platform in $(ALL_PLATFORMS); do \
if $(DKR) --version |grep -q podman; then \
$(DKR) image exists \
"$(REGISTRY)/$$bin:$(VERSION)__$$(echo $$platform | sed 's#/#_#g')" && \
$(DKR) image rm \
"$(REGISTRY)/$$bin:$(VERSION)__$$(echo $$platform | sed 's#/#_#g')"; \
else \
$(DKR) image rm \
"$(REGISTRY)/$$bin:$(VERSION)__$$(echo $$platform | sed 's#/#_#g')"; \
fi; \
done; \
done; true
bin-clean:
rm -rf .go bin
help: # @HELP prints this message
help:
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@echo "NOTE: Use BUILDARCH/BUILDOS variables to override OS/ARCH"
@echo
first makefile attempt
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@echo "VARIABLES:"
@echo " BINS = $(BINS)"
@echo " OS = $(OS)"
@echo " ARCH = $(ARCH)"
@echo " REGISTRY = $(REGISTRY)"
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@echo " HOSTARCH = $(HOSTARCH)"
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@echo
@echo "TARGETS:"
@grep -E '^.*: *# *@HELP' $(MAKEFILE_LIST) \
| awk ' \
BEGIN {FS = ": *# *@HELP"}; \
{ printf " %-30s %s\n", $$1, $$2 }; \
'
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