Fix startup when PEDALBOARD_TMP_DIR exists but FS is read-only

Signed-off-by: falkTX <falktx@falktx.com>

mod/__init__.py

@@ -59,9 +59,14 @@ def check_environment():
     # create temp dirs
     if not os.path.exists(DOWNLOAD_TMP_DIR):
         os.makedirs(DOWNLOAD_TMP_DIR)
+
     if os.path.exists(PEDALBOARD_TMP_DIR):
-        shutil.rmtree(PEDALBOARD_TMP_DIR)
-    os.makedirs(PEDALBOARD_TMP_DIR)
+        try:
+            shutil.rmtree(PEDALBOARD_TMP_DIR)
+        except OSError:
+            pass
+        else:
+            os.makedirs(PEDALBOARD_TMP_DIR)
 
     # remove temp files
     for path in (CAPTURE_PATH, PLAYBACK_PATH, UPDATE_CC_FIRMWARE_FILE):
@@ -105,7 +110,7 @@ def check_environment():
 
     if os.path.exists(UPDATE_MOD_OS_HERLPER_FILE):
         os.remove(UPDATE_MOD_OS_HERLPER_FILE)
-        os.sync()
+        os_sync()
 
     return True