This is a monster patch that finally gets the iterative pkg auto edges
working the way they should. For each file, as soon as one matches, we
don't want to keep add dependencies on other file objects under that
tree structure. This reduces the number of necessary edges considerably,
and allows the graph to run more concurrently.
This avoids code duplication since we need to reuse this logic
elsewhere, and as well this adds support for resolving the mapping for
multiple numbers of packages at the same time.
Note that on occasion, InstallPackages has hung waiting for Finished or
Destroy signals which never came! Increasing the PkBufferSize seemed to
help, but it's not clear if this is a permanent fix, or if more advanced
debugging and/or work arounds are needed. Is it possible that not
*waiting* to receive the destroy signals is causing this?
This allows for resources to automatically add necessary edges to the
graph so that the event system doesn't have to work overtime due to
sub-optimal execution order.
This is based on PackageKit, which means events, *and* we automatically
get support for any of the backends that PackageKit supports. This means
dpkg, and rpm are both first class citizens! Many other backends will
surely work, although thorough testing is left as an exercise to the
reader, or to someone who would like to write more test cases!
Unfortunately at the moment, there are a few upstream PackageKit bugs
which cause us issues, but those have been apparently resolved upstream.
If you experience issues with an old version of PackageKit, test if it
is working correctly before blaming mgmt :)
In parallel, mgmt might increase the testing surface for PackageKit, so
hopefully this makes it more robust for everyone involved!
Lastly, I'd like to point out that many great things that are typically
used for servers do start in the GNOME desktop world. Help support your
GNOME GNU/Linux desktop today!
