Vdirsyncer permet de synchroniser des calendriers (CalDav) et des contacts (CardDav) depuis le terminal. Il est à utiliser avec, par exemple, khal et khard.

Sur ubuntu, il est dans le dépôts :

$ sudo apt install vdirsyncer

La configuration se place dans ~/.config/vdirsyncer/config.

$ cat ~/.config/vdirsyncer/config 
[general]
# A folder where vdirsyncer can store some metadata about each pair.
status_path = "~/.vdirsyncer/status/"
 
###############################################################################
# CARDDAV
# Synchronize all collections that can be found.
# You need to run `vdirsyncer discover` if new calendars/addressbooks are added
# on the server.
 
[pair my_contacts]
a = "simon_contacts_local"
b = "simon_contacts_remote"
collections = ["from a", "from b"]
 
# Synchronize the "display name" property into a local file (~/.contacts/displayname).
#metadata = ["displayname"]
 
# To resolve a conflict the following values are possible:
#   `null` - abort when collisions occur (default)
#   `"a wins"` - assume a's items to be more up-to-date
#   `"b wins"` - assume b's items to be more up-to-date
#conflict_resolution = null
 
[storage simon_contacts_local]
type = "filesystem"
path = "~/.contacts/"
fileext = ".vcf"
 
[storage simon_contacts_remote]
type = "carddav"
url = "https://mon.nextcloud.be/remote.php/dav/addressbooks/users/simon/contacts/"
username = "simon"
# The password can also be fetched from the system password storage, netrc or a
# custom command. See http://vdirsyncer.pimutils.org/en/stable/keyring.html
password = "mongrospassword"
# password.fetch = ["prompt", "Password for CarDAV"]
 
###############################################################################
# CALDAV
[pair _calendar]
a = "simon_calendar_local"
b = "simon_calendar_remote"
collections = ["from a", "from b"]
 
# Calendars also have a color property
metadata = ["displayname", "color"]
 
[storage simon_calendar_local]
type = "filesystem"
path = "~/.calendars/"
fileext = ".ics"
 
[storage simon_calendar_remote]
type = "caldav"
url = "https://mon.nextcloud.be/remote.php/dav"
username = "simon"
password = "mongrospassword"
# password.fetch = ["prompt", "Password for CalDAV"]

$ vdirsyncer discover
Discovering collections for pair my_contacts
simon_contacts_local:
  - "contacts"
simon_contacts_remote:
  - "contacts" ("Contacts")
Saved for my_contacts: collections = ["contacts"]
Discovering collections for pair _calendar
simon_calendar_local:
simon_calendar_remote:
  - "monCalendrier" ("mon Calendrier")
  - "monAutreCalendrier" ("mon Autre Calendrier")
  - (...)
warning: No collection "monCalendrier" found for storage simon_calendar_local.
Should vdirsyncer attempt to create it? [y/N]: y
warning: No collection "monAutreCalendrier" found for storage simon_calendar_local.
Should vdirsyncer attempt to create it? [y/N]: y
(...)
Saved for _calendar: collections = ["monCalendrier", "monAutreCalendrier", (...)]

$ vdirsyncer metasync
Metasyncing my_contacts/contacts
Metasyncing _calendar/monCalendrier
Metasyncing _calendar/monAutreCalendrier
(...)
Copying displayname to simon_calendar_local/monCalendrier
Copying displayname to simon_calendar_local/monAutreCalendrier
(...)
Copying color to simon_calendar_local/monCalendrier
Copying color to simon_calendar_local/monAutreCalendrier
(...)

$ vdirsyncer sync
Syncing my_contacts/contacts
Syncing _calendar/monCalendrier
Syncing _calendar/monAutreCalendrier
(...)
Copying (uploading) item 055b40e6-b1ba-4940-96de-cdd4345be39a to simon_calendar_local/monCalendrier
(...)

J'ai du supprimer les calendriers locaux ( work, personal) qui avait été créés automatiquement par khal pour ne pas qu'il essaye de les créer sur mon nextcloud.

khal a un problème avec les noms de calendrier (displayName) qui ont une apostrophe, j'ai du changer manuellement le nom d'un de mes calendrier.

$ vim ~/.calendars/monCalendrier/displayname