Add option to delete a local collection, when it is deleted on the server

[dilyanpalauzov]

I want to delete local collections, when on the server the collection is deleted. I use Vdirsyncer 0.17 (rust).

I also want that when on the server a collection is created, that it is created locally on the next synchronization, but I achivede this by changing in vdirsyncer/cli/utils.py:handle_collections_not_found: `if click.confirm('Should vdirsyncer attempt to create it?)'

• add a command line option to vdirsyncer, that deletes local collection, when these are deleted on the server.

[dilyanpalauzov]

Something like this on current master (when the direction is collection=["from a"] and b is type="filesystem":

diff --git a/vdirsyncer/cli/discover.py b/vdirsyncer/cli/discover.py
--- a/vdirsyncer/cli/discover.py
+++ b/vdirsyncer/cli/discover.py
@@ -1,6 +1,8 @@
 import hashlib
 import json
 import logging
+import os
+import shutil
 import sys
 
 from .. import exceptions
@@ -9,6 +11,7 @@ from .utils import handle_collection_not_found
 from .utils import handle_storage_init_error
 from .utils import load_status
 from .utils import save_status
+from .utils import get_status_path
 from .utils import storage_class_from_config
 from .utils import storage_instance_from_config
 
@@ -63,6 +66,19 @@ def collections_for_pair(status_path, pair, from_cache=True,
 
     a_discovered = _DiscoverResult(pair.config_a)
     b_discovered = _DiscoverResult(pair.config_b)
+    if pair.config_b['type'] == 'filesystem':
+        for dele in set(b_discovered._discovered.keys()) - set(a_discovered._discovered.keys()):
+            path = pair.config_b['path'] + '/' + dele
+            if not os.path.islink(path):
+                shutil.rmtree(path, ignore_errors=True)
+                try:
+                    os.remove(get_status_path(status_path, pair.name, dele, 'items'))
+                except:
+                    pass
+                try:
+                    os.remove(get_status_path(status_path, pair.name, dele, 'metadata'))
+                except:
+                    pass
 
     if list_collections:
         _print_collections(pair.config_a['instance_name'],

[dilyanpalauzov]

Moved to #868. “It works for me.”