Make offline transactions work with local rpm files

[m-blaha]

Offline transactions now copy also local (command line repo) packages to the
cache.

Changes:

f30fd65 (Marek Blaha, 2 hours ago)
dnf5: Offline transactions work with local rpm files

9ab4e87 (Marek Blaha, 2 hours ago)
package_downloader: Handle local files

Local packages are not passed to librepo for download, but directly copied
to the destination directory.

74e0177 (Marek Blaha, 7 hours ago)
transaction: Flag whether download local packages

By default the transaction during the download() call does not copy local
packages to the destination directory. These packages are used directly
from their original location. For some use-cases (like offline transaction
involving the command line repo packages) we need to copy them to the
package cache.

Resolves: #1583

[packit-as-a-service]

We were not able to find or create Copr project packit/rpm-software-management-dnf5-1586 specified in the config with the following error:

Cannot create a new Copr project (owner=packit project=rpm-software-management-dnf5-1586 chroots=['fedora-rawhide-x86_64']): Copr: 'packit/rpm-software-management-dnf5-1586' already exists. Copr HTTP response is 400 BAD REQUEST.

---

Unless the HTTP status code above is >= 500, please check your configuration for:

1. typos in owner and project name (groups need to be prefixed with @)
2. whether the project name doesn't contain not allowed characters (only letters, digits, underscores, dashes and dots must be used)
3. whether the project itself exists (Packit creates projects only in its own namespace)
4. whether Packit is allowed to build in your Copr project
5. whether your Copr project/group is not private

[kontura]

I have created a couple of tests: rpm-software-management/ci-dnf-stack#1529

[kontura]

There are some failing CI tests.

I think the problem is with normal repo packages that are already downloaded in cache (using --downloadonly option).

They don't have the repo type COMMANDLINE so they are always set to be downloaded, in the PackageDownloader::download they are available locally so they are selected for copy but their source (pkg_target.package.get_location()) comes from the repo data - for example: Packages/h/hwloc-libs-2.10.0-3.fc40.x86_64.rpm and this fails to copy because the packages is not present at the path.

[m-blaha]

Thanks! The get_location() was wrong, get_package_path() is needed to cover also the cached packages.
I added a commit that fixes it and also executes download callbacks to inform the user about the package being copied.

[kontura]

Thanks 👍