It is already the case that when we are using ALL_DIRS, we always
combine it with OPTIONAL_REPO, meaning no need to populate empty
installations. ALL_DIRS is used for commands that iterate through all
known installations to enumerate apps/runtimes, such as `flatpak run`
and `flatpak list`; for these commands, it's reasonable to say that
if the installation does not have a libostree repository, then that's
equivalent to it having a libostree repository with no apps and no
runtimes. Make this happen automatically if forgotten.
For STANDARD_DIRS, we were inconsistent about this: `flatpak remote-list`
had OPTIONAL_REPO, but the other commands did not.
STANDARD_DIRS is used for `flatpak create-usb`, and for all the commands
that manipulate remotes.
For the commands that manipulate remotes, it seems reasonable to say
that if an installation has no libostree repository and we are unable
to create one, then that's equivalent to an installation with a
libostree repository but no remotes.
Similarly, for create-usb, an installation where we are unable to create
a libostree repository seems like it should be equivalent to an
installation whose libostree repository does not contain any of the
refs we are interested in.
Resolves: https://github.com/flatpak/flatpak/issues/4111
Signed-off-by: Simon McVittie <smcv@collabora.com>
(cherry picked from commit 3f144d1e02fa060680eba18a9dd81969682a3170)
723ae9d5fa