system_resolver is created based on loaded configuration, which could
avoid calls like `GenericResolver.create(conf)` repeatedly in the code.
However, if some cases need to create a specific resolver explicitly,
`GenericResolver.create` could be called with addition argument, for
example db or mbs is passed to argument backend in tests.
Signed-off-by: Chenxiong Qi <cqi@redhat.com>
I discovered that local builds have been broken by recent (good) changes in
dnf. At the end of every batch, we regenerate the local repo with createrepo
and we also call modifyrepo to include the modulemd file as we progress. This
was added in #467.
What we really want, is for the modulemd file to be present at the *end* of the
build.
Recently, dnf started respecting the modulemd file natively, such that builds
we built in batch0 would not show up in batch1. They would be present in the
repo, but they would be marked as belonging to a module which was not enabled,
and so could not be pulled in. Every module build would fail because
module-srpm-macros was in a disabled module (the module being built at the
time).
This change makes it so that the module metadata is only added to the repo at
the very end of the build. I moved it into a `finalize` method on the builder
which the copr builder was using, and for symmetry's sake I moved the koji
content generator code to the same method on that builder.
There was a circular import issue to solve between the koji module builder and
the koji content generator modules that generated a larger diff, but is mostly
cosmetic and mock changes.
