The F-Droid tools can automatically detect and build updates to apps and packages.
There are various mechanisms in place for automatically detecting that updates are available for applications, with the UpdateCheckMode field in the metadata determining which method is used for a particular application.
fdroid checkupdates command will apply this method to each
application in the repository and update the CurrentVersion and
CurrentVersionCode fields in the metadata accordingly.
As usual, the
-p option can be used with this, to restrict processing to a
Note that this only updates the metadata such that we know what the current published/recommended version is. It doesn’t make that version available in the repository - for that, see the next section.
Adding updates (i.e. new versions of applications already included in the
repository) happens in two ways. The simple case is applications where the
APK files are binaries, retrieved from a developer’s published build. In
this case, all that’s required is to place the new binary in the Repo
directory, and the next run of
fdroid update will pick it up.
For applications built from source, it is necessary to add a new
Version line to the metadata file. At the very least, the version name,
version code and commit will be different. It is also possible that the
additional build flags will change between versions.
For processing multiple updates in the metadata at once, it can be useful to
fdroid update --interactive. This will check all the applications in
the repository, and where updates are required you will be prompted to
[E]dit the metadata, [I]gnore the update, or [Q]uit altogether.