Print commit hash

Makefile

@@ -1,7 +1,9 @@
 .PHONY: all test
 
+COMMIT := $(shell git rev-parse --short HEAD)
+
 all:
-	go build -o telegabber
+	go build -ldflags "-X main.commit=${COMMIT}" -o telegabber
 
 test:
 	go test -v ./config ./ ./telegram ./xmpp ./xmpp/gateway ./persistence ./telegram/formatter

telegabber.go

@@ -15,7 +15,8 @@ import (
 	goxmpp "gosrc.io/xmpp"
 )
 
-const version string = "1.3.0"
+var version string = "1.4.0-dev"
+var commit string
 
 var sm *goxmpp.StreamManager
 var component *goxmpp.Component
@@ -25,6 +26,10 @@ var cleanupDone chan struct{}
 var sigintChannel chan os.Signal
 
 func main() {
+	if commit != "" {
+		version = fmt.Sprintf("%v-%v", version, commit)
+	}
+
 	var profilingPort = flag.Int("profiling-port", 0, "The port for pprof server")
 	// YAML config, compatible with the format of Zhabogram 2.0.0
 	var configPath = flag.String("config", "config.yml", "Config file path")
@@ -55,6 +60,8 @@ func main() {
 
 	SetLogrusLevel(config.XMPP.Loglevel)
 
+	log.Infof("Starting telegabber version %v", version)
+
 	sm, component, err = xmpp.NewComponent(config.XMPP, config.Telegram)
 	if err != nil {
 		log.Fatal(err)