vdirsyncer synchronizes your calendars and addressbooks between two storages. The supported storages are CalDAV, CardDAV, arbitrary HTTP resources and vdir.
It aims to be for CalDAV and CardDAV what OfflineIMAP is for IMAP.
While i use it daily and haven't experienced data loss (even when vdirsyncer crashed), i don't know if the documentation is sufficient. If you have any questions regarding the usage, feel free to open a new issue.
vdirsyncer is currently tested against the latest versions of Radicale and ownCloud.
Radicale doesn't support time ranges in the calendar-query of CalDAV/CardDAV, so setting start_date and
end_date in vdirsyncer's configuration will have no or unpredicted
consequences.
ownCloud uses SabreDAV, which had problems detecting collisions and race-conditions. The problems were reported and are fixed in SabreDAV's repo. See Bug #16 for more information.
However, given that this is a problem with every setup involving ownCloud, and that ownCloud is widely used, it apparently isn't big enough of a problem yet.
vdirsyncer requires Python >= 2.7 or Python >= 3.3.
As all Python packages, vdirsyncer can be installed with pip:
pip install --user vdirsyncer
Then copy example.cfg to ~/.vdirsyncer/config and edit it. You can use the
VDIRSYNCER_CONFIG environment variable to change the path vdirsyncer will
read the config from.
Run vdirsyncer --help. If you experience any problems, consult the wiki's
troubleshooting page or create a
new issue.
sh build.sh install sh build.sh run
vdirsyncer is released under the Expat/MIT License, see LICENSE for more
details.