feat: always retrieve version from git tag

internal/metadata/version.go

@@ -1,7 +1,20 @@
 package metadata
 
-import "strings"
+import (
+	"os/exec"
+	"strings"
+)
 
-// This will be overwritten by goreleaser on build
+var (
-var GoTomatoVersion = "devel"                                // The GoTomato version
+	GoTomatoVersion = "" // The GoTomato version
-var ProtocolVersion = strings.Split(GoTomatoVersion, ".")[0] // The protocol version
+	ProtocolVersion = "" // The protocol version
+)
+
+func init() {
+	if GoTomatoVersion == "" {
+		output, _ := exec.Command("git", "describe", "--tags").Output()
+		trimmed_output := strings.TrimSpace(string(output))       // strip newlines
+		GoTomatoVersion = strings.TrimPrefix(trimmed_output, "v") // strip leading "v"
+	}
+	ProtocolVersion = strings.Split(GoTomatoVersion, ".")[0] // The protocol version
+}