version from git

Author: shynome

Makefile

@@ -1,5 +1,6 @@
 testserver:
 	go run -ldflags="-X 'main.VERSION=test'" ./cmd/lcode-hub
 build:
-	go build -ldflags="-X 'main.VERSION=build'" -ldflags="-s -w" -o lcode-hub ./cmd/lcode-hub
+	go build -ldflags="-X 'main.VERSION=$$(git describe --tags --exact-match || git symbolic-ref -q --short HEAD)' -s -w" -o lcode-hub ./cmd/lcode-hub
+build-with-upx: build
 	upx lcode-hub