updated deps check

main.go

@@ -69,12 +69,32 @@ func printHelp() {
 
 // checkDependencies verifies if required dependencies are installed
 func checkDependencies() error {
-	dependencies := []string{"mercurial", "python3", "rsync", "git"}
-	for _, dep := range dependencies {
-		if _, err := exec.LookPath(dep); err != nil {
-			return fmt.Errorf("dependency %s is not installed. Please run: sudo apt install %s", dep, dep)
+	dependencies := map[string]string{
+		"mercurial": "hg",
+		"python3":   "python3",
+		"rsync":     "rsync",
+		"git":       "git",
+	}
+
+	// Log the PATH for debugging
+	fmt.Printf("Current PATH: %s\n", os.Getenv("PATH"))
+
+	for dep, cmd := range dependencies {
+		// Use LookPath to check availability
+		if _, err := exec.LookPath(cmd); err != nil {
+			return fmt.Errorf("dependency %s is not installed or not found in PATH. Please run: sudo apt install %s", dep, dep)
+		}
+
+		// For python3, run a specific version check to confirm
+		if dep == "python3" {
+			out, err := exec.Command(cmd, "--version").Output()
+			if err != nil {
+				return fmt.Errorf("dependency %s is installed but not functional. Ensure 'python3 --version' works correctly: %v", dep, err)
+			}
+			fmt.Printf("Detected %s: %s", dep, string(out))
 		}
 	}
+
 	return nil
 }