GNU bug report logs - #43984
`--with-graft=...` doesn't work with packages of different length name/version

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Message #14 received at 43984 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: pkill9 <pkill9 <at> runbox.com>
Cc: 43984 <at> debbugs.gnu.org
Subject: Re: bug#43984: `--with-graft=...` doesn't work with packages of
 different length name/version
Date: Fri, 16 Oct 2020 11:31:06 +0200

pkill9 <pkill9 <at> runbox.com> skribis:

>> > Maybe if the length/version is different, then a symlink could be
>> > created in the store pointing to the new dependency, with a
>> > name/version that matches the length of the original dependency's
>> > store name? Perhaps this new name/version could be something like
>> > /gnu/store/...-original-dependency-name-gggggg, where 'g..' matches
>> > the length of the version of the original dependency. The many 'g's
>> > would make it clear that it is a graft. Then if someone looks in
>> > the store, they would see it's a symlink too.  
>> 
>> That only works if the new name is shorter than the old name though.
>> When the new name is longer (which is a more common case in our
>> experience when introducing package replacements, typically because
>> the new version string is longer), nothing can be done.
>
> I'm confused about what you mean. Why would it matter if the new
> name is longer than the old name?

All I’m saying is that nothing can be done when the new name is longer
than the old one: we just cannot graft.

Ludo’.

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