With dnf5 there is a successor for dnf but there will also
be a transition period where there will be both, the former
dnf and the new dnf5 available. For a clear distinction
between the two we got the recommendation from the RedHat
team to support both in different namespaces. This commit
now implements a backward compatible change for kiwi which
includes the following modifications:
* XSL stylesheet for automatic schema transformation from
<packagemanager>dnf</packagemanager> to
<packagemanager>dnf4</packagemanager>
* Code copy of dnf API interface from
PackageManagerDnf -> PackageManagerDnf4
RepositoryDnf -> RepositoryDnf4
* Deprecation of former Dnf API interface
The code change here will force developers to adapt
their code if they used RepositoryDnf / PackageManagerDnf
classes in their python code. After this change developers
will be dropped into a raise condition which exits kiwi
at the time of the call. Related to Issue #2300
and Issue #2262
On the toplevel of an image description you can now
specify include directive(s) like in the following
example
<image ...>
...
<include from="filename_a.xml"/>
...
<include from="filename_b.xml"/>
</image>
At the place of their occurrence the include statement
will be replaced with the contents of the given filename.
The implementation is based on a XSLT stylesheet and
applies very early in the process. The stylesheet reads
the contents of the given file as XML document().
Thus only valid XML documents gets accepted by this
include concept. This Fixes#1929 and is related to
Issue #1918
