RFE: support install/upgrade/erase in the same transaction from the cli

[pmatilai]

All these years and rpm still cannot perform arbitrary install/update/erase operations in the same transaction from the cli, such as to work your way around conflicting packages. It's plain embarrasing, not to mention extremely annoying.

[pmatilai]

So the thing is, -i/-e/-U are untouchable because they don't take arguments, they define the mode which then uses the leftover arguments as its arguments, and none of that can be changed without breaking every script and documentation in existence.

Since they can't be changed, they need to be worked around, for example by adding entirely new switches like --add-install <arg> and --add-erase <arg> that can be arbitrarily mixed on the cli, and make -i/-e/-U internally use those. Unraveling rpmInstall() should be good fun 🤪

[dmnks]

Perhaps we could also come up with a simple scheme to specify a list of packages together with the desired action, for example:

--add-packages i:foo i:bar e:baz

Basically, a shorthand for:

--add-install foo --add-install bar --add-erase baz

(Could we use popt's aliasing magic here?)

[dmnks]

Hmm, although it would probably be easier to just allow a list of package in the --add-install and --add-erase options themselves:

--add-install foo,bar --add-erase baz