ceph_exporter/Makefile.COMMON

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# Copyright 2015 The Prometheus 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 AUTHORITATIVE VERSION OF THIS MAKEFILE LIVES IN:
#
# https://github.com/prometheus/utils
#
# PLEASE MAKE ANY CHANGES THERE AND PROPAGATE THEM TO ALL PROMETHEUS
# REPOSITORIES THAT ARE USING THIS MAKEFILE.
#
# This file provides common Makefile infrastructure for several Prometheus
# components. This includes make tasks for downloading Go, setting up a
# self-contained build environment, fetching Go dependencies, building
# binaries, running tests, and doing release management. This file is intended
# to be included from a project's Makefile, which needs to define the following
# variables, at a minimum:
#
# * VERSION - The current version of the project in question.
# * TARGET - The desired name of the built binary.
#
# Many of the variables defined below are defined conditionally (using '?'),
# which allows the project's main Makefile to override any of these settings, if
# needed. See also:
#
# https://www.gnu.org/software/make/manual/html_node/Flavors.html#Flavors.
#
# The including Makefile may define any number of extra targets that are
# specific to that project.
VERSION ?= $(error VERSION not set in including Makefile)
TARGET ?= $(error TARGET not set in including Makefile)
SRC ?= $(shell find . -type f -name "*.go" ! -path "./.build/*")
GOOS ?= $(shell uname | tr A-Z a-z)
GOARCH ?= $(subst x86_64,amd64,$(patsubst i%86,386,$(shell uname -m)))
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GO_VERSION ?= 1.5.3
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# Check for the correct version of go in the path. If we find it, use it.
# Otherwise, prepare to build go locally.
ifeq ($(shell command -v "go" >/dev/null && go version | sed -e 's/^[^0-9.]*\([0-9.]*\).*/\1/'), $(GO_VERSION))
GOCC ?= $(shell command -v "go")
GOFMT ?= $(shell command -v "gofmt")
GO ?= $(GOCC)
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else
GOURL ?= https://golang.org/dl
GOPKG ?= go$(GO_VERSION).$(GOOS)-$(GOARCH).tar.gz
GOROOT ?= $(CURDIR)/.build/go$(GO_VERSION)
GOCC ?= $(GOROOT)/bin/go
GOFMT ?= $(GOROOT)/bin/gofmt
GO ?= GOROOT=$(GOROOT) $(GOCC)
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endif
# Use vendored dependencies if available. Otherwise try to download them.
ifneq (,$(wildcard vendor))
DEPENDENCIES := $(shell find vendor/ -type f -iname '*.go')
GO := GO15VENDOREXPERIMENT=1 $(GO)
else
GOPATH := $(CURDIR)/.build/gopath
ROOTPKG ?= github.com/prometheus/$(TARGET)
SELFLINK ?= $(GOPATH)/src/$(ROOTPKG)
DEPENDENCIES := dependencies-stamp
GO := GOPATH=$(GOPATH) $(GO)
endif
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# Never honor GOBIN, should it be set at all.
unexport GOBIN
SUFFIX ?= $(GOOS)-$(GOARCH)
BINARY ?= $(TARGET)
ARCHIVE ?= $(TARGET)-$(VERSION).$(SUFFIX).tar.gz
default: $(BINARY)
$(BINARY): $(GOCC) $(SRC) $(DEPENDENCIES) Makefile Makefile.COMMON
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$(GO) build $(GOFLAGS) -o $@
.PHONY: archive
archive: $(ARCHIVE)
$(ARCHIVE): $(BINARY)
tar -czf $@ $<
.PHONY: tag
tag:
git tag $(VERSION)
git push --tags
.PHONY: test
test: $(GOCC) $(DEPENDENCIES)
$(GO) test $$($(GO) list ./... | grep -v /vendor/)
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.PHONY: format
format: $(GOCC)
find . -iname '*.go' | egrep -v "^\./\.build|./generated|\./vendor|\.(l|y)\.go" | xargs -n1 $(GOFMT) -w -s=true
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.PHONY: clean
clean:
rm -rf $(BINARY) $(ARCHIVE) .build *-stamp
$(GOCC):
@echo Go version $(GO_VERSION) required but not found in PATH.
@echo About to download and install go$(GO_VERSION) to $(GOROOT)
@echo Abort now if you want to manually install it system-wide instead.
@echo
@sleep 5
mkdir -p .build
# The archive contains a single directory called 'go/'.
curl -L $(GOURL)/$(GOPKG) | tar -C .build -xzf -
rm -rf $(GOROOT)
mv .build/go $(GOROOT)
$(SELFLINK):
mkdir -p $(dir $@)
ln -s $(CURDIR) $@
# Download dependencies if project doesn't vendor them.
dependencies-stamp: $(GOCC) $(SRC) | $(SELFLINK)
$(GO) get -d
touch $@