[pacman-dev] [RFC] [IDEA] Possibility to ignore specific dependencies

[Allan McRae]

On 22/06/14 23:32, Florian Pritz wrote:
> Hi,
> 
> I'm thinking about having perl packages depend on a more specific perl
> version (like a provided perl-5.20 instead of simply perl), but that
> brings the same issues we currently have with kernel modules. Everything
> that's not in the repos will prevent a clean upgrade because it depends
> on the old package.
> 
> One idea to get around this would be to add an option like
> --ignore-dependency perl-5.18 which means that something like -Syu (or
> -S, -U and similar) will error when there are dependencies for
> perl-5.20, but will not error when there are packages installed that
> depend on perl-5.18.
> 
> Side note: Not yet sure how the final syntax will look like, that - as a
> separator seems like a bad choice because it's ambiguous (where does the
> pkgname end if there doesn't have to be a pkgver?)
> 
> This is a more controlled form of -d if you will. Optionally I'd also
> want this to work like -dd if used as "--ignore-dependency perl" which
> means that all perl dependencies will be ignored, but dependencies on
> other packages will not.
> 
> Obviously this will not only be useful for perl, but also for linux
> modules, though I don't have any of those installed from AUR so I don't
> know if people for other workarounds.
> 
> This is only an idea for now, depending on feedback I'd look into
> implementing it.
> 

So this is the process now:

pacman -Syu    <- perl version dependency error
pacman -Sd perl
pacman -Su

and this will change to:

pacman -Syu    <- perl version dependency error
pacman -Su --ignore-depends perl=5.18


Is that correct?

Allan