Clean git version in your Makefile

Makefile

# Get the current clean version from your git repo
# - -tagname if the current commit is tagged and no changes were detected
# - branchname-sha if not
# - branchname-sha-dirty if changes were detected and not commited
# Use $(VERSION) to get it, wherever you want in your commands
VERSION=$(shell \
	git describe --exact-match --tags --dirty 2>/dev/null || \
	printf "%s-%s%s" \
		$(shell git branch --show-current) \
		$(shell git log -n1 --pretty=%h) \
		$(shell git diff --quiet || echo "-dirty") \
)