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Some code cleanup

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This commit is contained in:
Markus Unterwaditzer 2014-02-28 23:55:16 +01:00
parent 3a0c1ff4a5
commit 6776c79743
1 changed files with 55 additions and 29 deletions
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84
vdirsyncer/sync.py
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@ -80,32 +80,58 @@ def sync(storage_a, storage_b, status):
None: (None, None, None)
}
for action, uid, source, dest in actions:
for action in actions:
action(storages, status)
def action_upload(uid, source, dest):
def inner(storages, status):
source_storage, source_list, source_uid_to_href = storages[source]
dest_storage, dest_list, dest_uid_to_href = storages[dest]
sync_logger.debug((action, uid, source_storage, dest_storage))
source_href = source_uid_to_href[uid]
source_etag = source_list[source_href]['etag']
if action in ('upload', 'update'):
source_href = source_uid_to_href[uid]
source_etag = source_list[source_href]['etag']
obj = source_list[source_href]['obj']
obj = source_list[source_href]['obj']
dest_href, dest_etag = dest_storage.upload(obj)
if action == 'upload':
dest_href, dest_etag = dest_storage.upload(obj)
else:
dest_href = dest_uid_to_href[uid]
old_etag = dest_list[dest_href]['etag']
dest_etag = dest_storage.update(dest_href, obj, old_etag)
source_status = (source_href, source_etag)
dest_status = (dest_href, dest_etag)
status[uid] = source_status + dest_status if source == 'a' else \
dest_status + source_status
elif action == 'delete':
if dest is not None:
dest_href = dest_uid_to_href[uid]
dest_etag = dest_list[dest_href]['etag']
dest_storage.delete(dest_href, dest_etag)
del status[uid]
source_status = (source_href, source_etag)
dest_status = (dest_href, dest_etag)
status[uid] = source_status + dest_status if source == 'a' else \
dest_status + source_status
return inner
def action_update(uid, source, dest):
def inner(storages, status):
source_storage, source_list, source_uid_to_href = storages[source]
dest_storage, dest_list, dest_uid_to_href = storages[dest]
source_href = source_uid_to_href[uid]
source_etag = source_list[source_href]['etag']
dest_href = dest_uid_to_href[uid]
old_etag = dest_list[dest_href]['etag']
obj = source_list[source_href]['obj']
dest_etag = dest_storage.update(dest_href, obj, old_etag)
source_status = (source_href, source_etag)
dest_status = (dest_href, dest_etag)
status[uid] = source_status + dest_status if source == 'a' else \
dest_status + source_status
return inner
def action_delete(uid, source, dest):
def inner(storages, status):
if dest is not None:
dest_storage, dest_list, dest_uid_to_href = storages[dest]
dest_href = dest_uid_to_href[uid]
dest_etag = dest_list[dest_href]['etag']
dest_storage.delete(dest_href, dest_etag)
del status[uid]
return inner
def get_actions(list_a, list_b, status, a_uid_to_href, b_uid_to_href):
@ -133,11 +159,11 @@ def get_actions(list_a, list_b, status, a_uid_to_href, b_uid_to_href):
# new item was created in a
elif uid in uids_a and uid not in uids_b:
prefetch_from_a.append(href_a)
actions.append(('upload', uid, 'a', 'b'))
actions.append(action_upload(uid, 'a', 'b'))
# new item was created in b
elif uid not in uids_a and uid in uids_b:
prefetch_from_b.append(href_b)
actions.append(('upload', uid, 'b', 'a'))
actions.append(action_upload(uid, 'b', 'a'))
else:
_, status_etag_a, _, status_etag_b = status[uid]
if uid in uids_a and uid in uids_b:
@ -147,17 +173,17 @@ def get_actions(list_a, list_b, status, a_uid_to_href, b_uid_to_href):
'New etags on both sides.')
elif a['etag'] != status_etag_a: # item was updated in a
prefetch_from_a.append(href_a)
actions.append(('update', uid, 'a', 'b'))
actions.append(action_update(uid, 'a', 'b'))
elif b['etag'] != status_etag_b: # item was updated in b
prefetch_from_b.append(href_b)
actions.append(('update', uid, 'b', 'a'))
actions.append(action_update(uid, 'b', 'a'))
else: # completely in sync!
pass
elif uid in uids_a and uid not in uids_b: # was deleted from b
actions.append(('delete', uid, None, 'a'))
actions.append(action_delete(uid, None, 'a'))
elif uid not in uids_a and uid in uids_b: # was deleted from a
actions.append(('delete', uid, None, 'b'))
actions.append(action_delete(uid, None, 'b'))
# was deleted from a and b
elif uid not in uids_a and uid not in uids_b:
actions.append(('delete', uid, None, None))
actions.append(action_delete(uid, None, None))
return actions, prefetch_from_a, prefetch_from_b