feat: add -version flag for jetkvm_app

Author: ym

cmd/main.go

@@ -1,9 +1,32 @@
 package main
 
 import (
+	"flag"
+	"fmt"
+
 	"github.com/jetkvm/kvm"
+	"github.com/prometheus/common/version"
 )
 
+func printVersion() {
+	version.Version = kvm.GetBuiltAppVersion()
+	app_version := version.Print("JetKVM Application")
+	fmt.Println(app_version)
+
+	nativeVersion, err := kvm.GetNativeVersion()
+	if err == nil {
+		fmt.Println("\nJetKVM Native, version", nativeVersion)
+	}
+}
+
 func main() {
+	versionPtr := flag.Bool("version", false, "print version and exit")
+	flag.Parse()
+
+	if *versionPtr {
+		printVersion()
+		return
+	}
+
 	kvm.Main()
 }

dev_deploy.sh

@@ -174,7 +174,7 @@ cd "${REMOTE_PATH}"
 chmod +x jetkvm_app_debug
 
 # Run the application in the background
-PION_LOG_TRACE=${LOG_TRACE_SCOPES} ./jetkvm_app_debug
+PION_LOG_TRACE=${LOG_TRACE_SCOPES} ./jetkvm_app_debug | tee -a /tmp/jetkvm_app_debug.log
 EOF
 
 echo "Deployment complete."

native.go

@@ -282,14 +282,30 @@ func shouldOverwrite(destPath string, srcHash []byte) bool {
 	return !bytes.Equal(srcHash, dstHash)
 }
 
+func getNativeSha256() ([]byte, error) {
+	version, err := resource.ResourceFS.ReadFile("jetkvm_native.sha256")
+	if err != nil {
+		return nil, err
+	}
+	return version, nil
+}
+
+func GetNativeVersion() (string, error) {
+	version, err := getNativeSha256()
+	if err != nil {
+		return "", err
+	}
+	return string(version), nil
+}
+
 func ensureBinaryUpdated(destPath string) error {
 	srcFile, err := resource.ResourceFS.Open("jetkvm_native")
 	if err != nil {
 		return err
 	}
 	defer srcFile.Close()
 
-	srcHash, err := resource.ResourceFS.ReadFile("jetkvm_native.sha256")
+	srcHash, err := getNativeSha256()
 	if err != nil {
 		nativeLogger.Debug().Msg("error reading embedded jetkvm_native.sha256, proceeding with update")
 		srcHash = nil

ota.go

@@ -50,6 +50,10 @@ const UpdateMetadataUrl = "https://api.jetkvm.com/releases"
 
 var builtAppVersion = "0.1.0+dev"
 
+func GetBuiltAppVersion() string {
+	return builtAppVersion
+}
+
 func GetLocalVersion() (systemVersion *semver.Version, appVersion *semver.Version, err error) {
 	appVersion, err = semver.NewVersion(builtAppVersion)
 	if err != nil {