add version info to the binary
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parent
be668f21e8
commit
6dd7678e64
27
Makefile
27
Makefile
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@ -2,19 +2,24 @@ GODEPS = $(shell git ls-files '*.go' go.mod go.sum)
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GOBIN = $(shell go env GOPATH)/bin/
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GOOSARCHS = $(sort \
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linux/amd64 \
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linux/arm64 \
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darwin/amd64 \
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darwin/arm64 \
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linux/amd64 \
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linux/arm64 \
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windows/amd64/.exe \
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)
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windows/arm64/.exe)
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VERSION = $(shell git describe --dirty)
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LDFLAGS = -ldflags "-X main.Version=$(VERSION)"
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VSN = $(shell git describe --dirty)
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VSNHASH = $(shell git rev-parse --verify HEAD)
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LDFLAGS = -ldflags "-X main.Version=$(VSN) -X main.VersionHash=$(VSNHASH)"
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.PHONY: test
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test:
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go test -race -cover ./...
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define undockertarget
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UNDOCKERS += undocker-$(1)-$(2)-$(VERSION)-$(firstword $(3))
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undocker-$(1)-$(2)-$(VERSION)$(firstword $(3)): $(GODEPS)
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UNDOCKERS += undocker-$(1)-$(2)-$(VSN)$(firstword $(3))
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undocker-$(1)-$(2)-$(VSN)$(firstword $(3)): $(GODEPS)
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CGO_ENABLED=0 GOOS=$(1) GOARCH=$(2) go build $(LDFLAGS) -o $$@
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endef
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@ -22,11 +27,7 @@ $(foreach goosarch,$(GOOSARCHS),\
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$(eval $(call undockertarget,$(word 1,$(subst /, ,$(goosarch))),$(word 2,$(subst /, ,$(goosarch))),$(word 3,$(subst /, ,$(goosarch))))))
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.PHONY: all
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all: $(UNDOCKERS) coverage.html
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.PHONY: test
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test:
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go test -race -cover ./...
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all: $(UNDOCKERS)
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.PHONY: lint
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lint: vet staticcheck
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@ -54,4 +55,4 @@ sha256sum.txt.asc: sha256sum.txt
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.PHONY: clean
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clean:
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rm -f $(UNDOCKERS) coverage.html sha256sum.txt sha256sum.txt.asc
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rm -f undocker-*-v* coverage.html sha256sum.txt sha256sum.txt.asc
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@ -80,11 +80,7 @@ Similar Projects
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Changelog
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---------
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**1.0.1**
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* bugfix: add missing error check when opening the tarball.
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**1.0**
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**v1.0**
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* initial release: `rootfs.Flatten` and a simple command-line application.
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13
main.go
13
main.go
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@ -11,6 +11,9 @@ import (
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"git.sr.ht/~motiejus/undocker/rootfs"
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)
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var Version = "unknown"
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var VersionHash = "unknown"
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const _usage = `Usage:
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%s <infile> <outfile>
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@ -19,13 +22,21 @@ Flatten a Docker container image to a root file system.
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Arguments:
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<infile>: Input Docker container. Tarball.
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<outfile>: Output tarball, the root file system. '-' is stdout.
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undocker %s (%s)
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Built with %s
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`
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func main() {
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runtime.GOMAXPROCS(1) // no need to create that many threads
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if len(os.Args) != 3 {
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fmt.Fprintf(os.Stderr, _usage, filepath.Base(os.Args[0]))
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fmt.Fprintf(os.Stderr, _usage,
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filepath.Base(os.Args[0]),
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Version,
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VersionHash,
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runtime.Version(),
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)
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os.Exit(1)
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}
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