Set app version from git info

internal/app/app.go

@@ -7,6 +7,7 @@ import (
 	"os/exec"
 	"runtime"
 	"runtime/debug"
+	"strings"
 )
 
 var (
@@ -91,6 +92,14 @@ func Init() {
 
 func readRevisionTime() (revision, vcsTime string) {
 	if info, ok := debug.ReadBuildInfo(); ok {
+		// Rewrite version from -buildvcs info if it is valid.
+		// Format for tagged version: v1.9.13
+		// Format for custom commit:  v1.9.14-0.20251215184105-753d6617ab58
+		// Format for modified code:  v1.9.14-0.20251215184105-753d6617ab58+dirty
+		if s, ok := strings.CutPrefix(info.Main.Version, "v"); ok {
+			Version = s
+		}
+
 		for _, setting := range info.Settings {
 			switch setting.Key {
 			case "vcs.revision":
@@ -103,7 +112,7 @@ func readRevisionTime() (revision, vcsTime string) {
 				vcsTime = setting.Value
 			case "vcs.modified":
 				if setting.Value == "true" {
-					revision = "mod." + revision
+					revision += "+dirty"
 				}
 			}
 		}

main.go

@@ -49,6 +49,7 @@ import (
 )
 
 func main() {
+	// version will be set later from -buildvcs info, this used only as fallback
 	app.Version = "1.9.13"
 
 	type module struct {