File level backup of speech dispatcher files

flatpak/com.mikeasoft.pied.yaml

@@ -11,7 +11,7 @@ finish-args:
   - --device=dri
   - --socket=pulseaudio
   - --share=network
-  - --filesystem=home
+  - --filesystem=xdg-config/speech-dispathcer:create
   - --talk-name=org.freedesktop.Flatpak
 modules:
   - name: Pied

lib/voice_buttons.dart

@@ -48,60 +48,95 @@ class _VoiceButtonsState extends State<VoiceButtons> {
     }
   }
 
-  void setSDConfig() async {
+  Future<void> setSDConfig() async {
     Directory confDir =
         Directory(path.join(getHome()!, ".config/speech-dispatcher"));
-    Directory? originalConfigDir;
-    if (confDir.existsSync()) {
-      File sdConfig = File(path.join(confDir.path, "speechd.conf"));
-      if (sdConfig.existsSync()) {
-        if (sdConfig
-            .readAsStringSync()
-            .contains("THIS CONFIG WAS GENERATED BY PIED")) {
-          return;
-        }
-      }
-      DateTime now = DateTime.now();
-      Directory newDir;
-      if (isSnap()) {
-        Directory origDir =
-            Directory(path.join(getHome()!, ".config/speech-dispatcher.orig"));
-        if (!origDir.existsSync()) {
-          origDir.createSync();
-        }
-        newDir = Directory(
-            "${confDir.path}.orig/${now.year}-${now.month}-${now.day}");
-      } else {
-        newDir = Directory(
-            "${confDir.path}.orig.${now.year}-${now.month}-${now.day}");
+
+    // Ensure the main config directory and subdirectories exist
+    if (!confDir.existsSync()) {
+      confDir.createSync(recursive: true);
+    }
+    Directory modulesDir = Directory(path.join(confDir.path, "modules"));
+    if (!modulesDir.existsSync()) {
+      modulesDir.createSync(recursive: true);
+    }
+    Directory clientsDir = Directory(path.join(confDir.path, "clients"));
+    if (!clientsDir.existsSync()) {
+      clientsDir.createSync(recursive: true);
+    }
+
+    File sdConfig = File(path.join(confDir.path, "speechd.conf"));
+    File piperConfig = File(path.join(modulesDir.path, "piper.conf"));
+
+    DateTime now = DateTime.now();
+    String timestamp =
+        "${now.year}-${now.month}-${now.day}-${now.hour}-${now.minute}-${now.second}";
+
+    File? sdBackup;
+    File? piperBackup;
+    bool sdChanged = false;
+
+    // Check/Backup speechd.conf
+    // If it exists and DOES NOT contain our signature, back it up.
+    if (sdConfig.existsSync()) {
+      if (!sdConfig.readAsStringSync().contains("THIS CONFIG WAS GENERATED BY PIED")) {
+        sdBackup = File("${sdConfig.path}.bak-$timestamp");
+        sdConfig.renameSync(sdBackup.path);
+
+        // We only create new config if we moved the old one or it didn't exist
+        sdConfig.createSync();
+        sdConfig.writeAsString(sdConfigTemplate);
+        sdChanged = true;
       }
-      if (newDir.existsSync()) {
-        newDir.deleteSync(recursive: true);
+    } else {
+      // Create fresh if didn't exist
+      sdConfig.createSync();
+      sdConfig.writeAsString(sdConfigTemplate);
+      sdChanged = true;
+    }
+
+    // if not generated by pied -> back up
+    if (piperConfig.existsSync()) {
+      if (!piperConfig.readAsStringSync().contains("THIS CONFIG WAS GENERATED BY PIED")) {
+        piperBackup = File("${piperConfig.path}.bak-$timestamp");
+        piperConfig.renameSync(piperBackup.path);
       }
-      confDir.renameSync(newDir.path);
-      originalConfigDir = newDir;
     }
-    confDir.createSync();
-    Directory(path.join(confDir.path, "clients")).create();
-    Directory(path.join(confDir.path, "modules")).create();
-    File sdConfig = File(path.join(confDir.path, "speechd.conf"));
-    sdConfig.createSync();
-    sdConfig.writeAsString(sdConfigTemplate);
-    restartSD();
-    Timer(const Duration(seconds: 2), () {
-      confirmConfigChange(originalConfigDir);
-    });
+
+    // if changed config -> ask for confirmation
+    if (sdChanged) {
+      restartSD();
+      Timer(const Duration(seconds: 2), () {
+        confirmConfigChange(sdBackup, piperBackup);
+      });
+    }
   }
 
-  Future<void> revertConfig(Directory? originalConfigDir) async {
+  Future<void> revertConfig(File? sdBackup, File? piperBackup) async {
     Directory confDir =
         Directory(path.join(getHome()!, ".config/speech-dispatcher"));
-    confDir.deleteSync(recursive: true);
-    if (originalConfigDir != null) {
-      originalConfigDir.rename(confDir.path);
+    File sdConfig = File(path.join(confDir.path, "speechd.conf"));
+    File piperConfig = File(path.join(confDir.path, "modules/piper.conf"));
+
+    // undo the Pied configuration
+    if (sdConfig.existsSync()) {
+      sdConfig.deleteSync();
+    }
+    if (piperConfig.existsSync()) {
+      piperConfig.deleteSync();
+    }
+
+    // restore backups
+    if (sdBackup != null && sdBackup.existsSync()) {
+      sdBackup.renameSync(sdConfig.path);
+    }
+    if (piperBackup != null && piperBackup.existsSync()) {
+      piperBackup.renameSync(piperConfig.path);
     }
+
     widget.onCurrentVoiceChanged("");
     restartSD();
+
     Timer(const Duration(seconds: 2), () {
       showDialog<void>(
           context: context,
@@ -136,13 +171,13 @@ class _VoiceButtonsState extends State<VoiceButtons> {
     });
   }
 
-  Future<void> confirmConfigChange(Directory? originalConfigDir) async {
+  Future<void> confirmConfigChange(File? sdBackup, File? piperBackup) async {
     return showDialog<void>(
         context: context,
         barrierDismissible: false,
         builder: (BuildContext context) {
           return ConfirmationDialog(onRevert: () {
-            revertConfig(originalConfigDir);
+            revertConfig(sdBackup, piperBackup);
           });
         });
   }
@@ -161,12 +196,14 @@ class _VoiceButtonsState extends State<VoiceButtons> {
                     enabled: true,
                     child: ElevatedButton(
                         onPressed: () async {
-                          setSDConfig();
+                          await setSDConfig();
+
                           final Directory appDir = await getDataDir();
                           Directory modelDir =
                               Directory(path.join(appDir.path, "models"));
                           File modelConf = File(path.join(getHome()!,
                               ".config/speech-dispatcher/modules/piper.conf"));
+
                           String configString = modelTemplate;
                           configString = configString.replaceAll("PIPER_PATH",
                               path.join(appDir.path, "piper", "piper"));
@@ -178,7 +215,15 @@ class _VoiceButtonsState extends State<VoiceButtons> {
                               "LANGUAGE", widget.voiceData[1]);
                           configString = configString.replaceAll(
                               "SUBVOICE", widget.selectedSubVoice.toString());
-                          modelConf.writeAsString(configString);
+
+                          String header = "# THIS CONFIG WAS GENERATED BY PIED\n";
+
+                          if (!modelConf.parent.existsSync()) {
+                             modelConf.parent.createSync(recursive: true);
+                          }
+
+                          // add pied signature to piper.conf
+                          modelConf.writeAsString(header + configString);
                           restartSD();
                           widget.onCurrentVoiceChanged(widget.voiceData[4]);
                           widget.onCurrentSubVoiceChanged(