[cli] added config-file --clean option

CHANGELOG.md

@@ -25,9 +25,10 @@
   the equivalent command from the Settings group (e.g., `maestral move-dir`).  
 * Added the ability to turn off one sync direction, for instance to enable download 
   syncs only. This can be useful when you want to mirror a remote folder while ignoring
-  local changes. Note that conflict resolution remain unaffected. For instance, when
-  an unsynced local change would be overwritten by a remote change, the local file will
-  be moved to a "conflicting copy" first.
+  local changes. To use this, set the respective config values for `upload` or
+  `download` to False. Note that conflict resolution remain unaffected. For instance, 
+  when an unsynced local change would be overwritten by a remote change, the local file 
+  will be moved to a "conflicting copy" first.
 
 #### Changed:
 
@@ -50,6 +51,8 @@
   * Renamed command `file-status` to `filestatus`.
   * Added a `--yes, -Y` flag to the `unlink` to command to skip the confirmation prompt.
   * Renamed the `configs` command to list config files to `config-files`.
+  * Added an option `--clean` to `config-files` to remove all stale config files without
+    a linked Dropbox account.
 * Improved error message when the user is running out of inotify watches: Recommend
   default values of `max_user_watches = 524,288` and `max_user_instances = 1024` or
   double the current values, whichever is higher. Advise to apply the changes with

src/maestral/cli.py

@@ -1177,7 +1177,13 @@ def ls(long: bool, dropbox_path: str, include_deleted: bool, config_name: str) -
 
 
 @main.command(section="Information", help="List all configured Dropbox accounts.")
-def config_files() -> None:
+@click.option(
+    "--clean",
+    is_flag=True,
+    default=False,
+    help="Remove config files without a linked account.",
+)
+def config_files(clean: bool) -> None:
 
     from .daemon import is_running
     from .config import (
@@ -1187,14 +1193,21 @@ def config_files() -> None:
         remove_configuration,
     )
 
-    # clean up stale configs
+    if clean:
+
+        # Clean up stale config files.
 
         for name in list_configs():
-        dbid = MaestralConfig(name).get("account", "account_id")
+            conf = MaestralConfig(name)
+            path = conf.get_config_fpath()
+            dbid = conf.get("account", "account_id")
+
             if dbid == "" and not is_running(name):
                 remove_configuration(name)
+                cli.echo(f"Removed: {path}")
 
-    # display remaining configs
+    else:
+        # Display config files.
         names = list_configs()
         emails = []
         paths = []