This adds variable support for collection IDs: they can either be
enabled on the server, on the server and client, or not at all. If
enabled on the server, apps and runtimes are built with collection IDs
and the repository has one set. If enabled on the client, the remote
config is added to the local repository with a collection ID and GPG
verification enabled. They are controlled with
USE_COLLECTIONS_IN_{SERVER,CLIENT}={yes,no}.
These variables are used in the new wrapper tests,
test-repo-collections.sh and test-repo-collections-server-only.sh.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
This makes the ostree trivial-httpd --autoexit feature work better,
because it seems to exit whenever the root directory changes (i.e. not
only when its deleted).
This means the root dir can't be the repo (because then we can't
update the repo), or the base testdir (because we create files there
too), so instead we make the repo $testdir/repos/test and
$testdir/repos as the httpd root.