Merge pull request lxc#249 from monstermunchkin/misc/Makefile

Makefile: Add dist target

Makefile

@@ -1,4 +1,7 @@
-.PHONY: default check
+VERSION=$(shell grep "var Version" shared/version/version.go | cut -d'"' -f2)
+ARCHIVE=distrobuilder-$(VERSION).tar
+
+.PHONY: default check dist
 
 default:
 	gofmt -s -w .
@@ -13,3 +16,28 @@ check: default
 	golint -set_exit_status ./...
 	deadcode ./
 	go vet ./...
+
+dist:
+	# Cleanup
+	rm -Rf $(ARCHIVE).gz
+
+	# Create build dir
+	$(eval TMP := $(shell mktemp -d))
+	git archive --prefix=distrobuilder-$(VERSION)/ HEAD | tar -x -C $(TMP)
+	mkdir -p $(TMP)/_dist/src/github.com/lxc
+	ln -s ../../../../distrobuilder-$(VERSION) $(TMP)/_dist/src/github.com/lxc/distrobuilder
+
+	# Download dependencies
+	cd $(TMP)/distrobuilder-$(VERSION) && GOPATH=$(TMP)/_dist go get -t -v -d ./...
+
+	# Write a manifest
+	cd $(TMP)/_dist && find . -type d -name .git | while read line; do GITDIR=$$(dirname $$line); echo "$${GITDIR}: $$(cd $${GITDIR} && git show-ref HEAD $${GITDIR} | cut -d' ' -f1)"; done | sort > $(TMP)/_dist/MANIFEST
+
+	# Assemble tarball
+	rm $(TMP)/_dist/src/github.com/lxc/distrobuilder
+	ln -s ../../../../ $(TMP)/_dist/src/github.com/lxc/distrobuilder
+	mv $(TMP)/_dist $(TMP)/distrobuilder-$(VERSION)/
+	tar --exclude-vcs -C $(TMP) -zcf $(ARCHIVE).gz distrobuilder-$(VERSION)/
+
+	# Cleanup
+	rm -Rf $(TMP)