Created
September 28, 2019 13:33
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Makefile for building version strings from Git data and including that version numbers into go programs
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package main | |
import ( | |
// ... | |
) | |
var version = "dev" | |
func main() { | |
// ... | |
} |
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TAG_COMMIT := $(shell git rev-list --abbrev-commit --tags --max-count=1) | |
TAG := $(shell git describe --abbrev=0 --tags ${TAG_COMMIT} 2>/dev/null || true) | |
COMMIT := $(shell git rev-parse --short HEAD) | |
DATE := $(shell git log -1 --format=%cd --date=format:"%Y%m%d") | |
VERSION := $(TAG:v%=%) | |
ifneq ($(COMMIT), $(TAG_COMMIT)) | |
VERSION := $(VERSION)-next-$(COMMIT)-$(DATE) | |
endif | |
ifeq $(VERSION,) | |
VERSION := $(COMMIT)-$(DATA) | |
endif | |
ifneq ($(shell git status --porcelain),) | |
VERSION := $(VERSION)-dirty | |
endif | |
FLAGS := -ldflags "-X main.version=$(VERSION)" | |
build: | |
go build $(FLAGS) -o projectname-$(VERSION) main.go | |
run: | |
go run $(FLAGS) main.go | |
install: | |
go install $(FLAGS) |
And line 10 should be changed to
VERSION := $(COMMIT)-$(DATE)
("DATE", not "DATA")
Also, when run on a repo that truly has no tags, $(COMMIT)-$(DATE)
is not what VERSION
gets set to. It gets set to -next-$(COMMIT)-$(DATE)
.
To do as designed in the blog post, lines 9&10 should be changed to
ifeq ($(TAG_COMMIT),)
VERSION := $(COMMIT)-$(DATE)
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The 9 line should be change to