I was wondering what happens if I set it to the default value daily or another longer period.
The Repository – SNAPSHOT Handling explains it maybe better than the POM reference:
Each repository in the project has its
own update policy:
- always – always check when Maven is started for newer versions of
snapshots- never – never check for newer remote versions. Once off manual updates can
be performed.- daily (default) – check on the first run of the day (local time)
- interval:XXX – check every XXX minutes
I don’t think there is anything to add (except maybe that check != download).
Does maven still check whether a new version of the snapshot is available and if so, does it download it although the policy says daily ?
Well, no, why would it?
I’m looking for the correct settings to avoid redundant downloads and not to miss a newer snapshot out there.
Use always if you always want Maven to download a newer version of snapshots, if available (Maven will always check the remote repository but only download if the version is newer).