* repeater & room server: "node_prefs" -> "com_prefs" migration

src/helpers/CommonCLI.cpp

@@ -14,8 +14,17 @@ static uint32_t _atoi(const char* sp) {
 }
 
 void CommonCLI::loadPrefs(FILESYSTEM* fs) {
-  if (fs->exists("/node_prefs")) {
+  if (fs->exists("/com_prefs")) {
-    File file = fs->open("/node_prefs");
+    loadPrefsInt(fs, "/com_prefs");   // new filename
+  } else if (fs->exists("/node_prefs")) {
+    loadPrefsInt(fs, "/node_prefs");
+    savePrefs(fs);  // save to new filename
+    fs->remove("/node_prefs");  // remove old
+  }
+}
+
+void CommonCLI::loadPrefsInt(FILESYSTEM* fs, const char* filename) {
+  File file = fs->open(filename);
   if (file) {
     uint8_t pad[8];
 
@@ -57,14 +66,13 @@ void CommonCLI::loadPrefs(FILESYSTEM* fs) {
     file.close();
   }
 }
-}
 
 void CommonCLI::savePrefs(FILESYSTEM* fs) {
 #if defined(NRF52_PLATFORM)
-  File file = fs->open("/node_prefs", FILE_O_WRITE);
+  File file = fs->open("/com_prefs", FILE_O_WRITE);
   if (file) { file.seek(0); file.truncate(); }
 #else
-  File file = fs->open("/node_prefs", "w", true);
+  File file = fs->open("/com_prefs", "w", true);
 #endif
   if (file) {
     uint8_t pad[8];

src/helpers/CommonCLI.h

@@ -53,6 +53,8 @@ class CommonCLI {
 
   void checkAdvertInterval();
 
+  void loadPrefsInt(FILESYSTEM* _fs, const char* filename);
+
 public:
   CommonCLI(mesh::MainBoard& board, mesh::Mesh* mesh, NodePrefs* prefs, CommonCLICallbacks* callbacks) 
       : _board(&board), _mesh(mesh), _prefs(prefs), _callbacks(callbacks) { }