[systemd-devel] systemd-network-wait-online symlinks to systemd-networkd

[Mike Gilbert]

On Wed, Jun 11, 2014 at 12:15 PM, Kirill Elagin <kirelagin at gmail.com> wrote:
> On Wed, Jun 11, 2014 at 3:24 AM, Mike Gilbert <floppym at gentoo.org> wrote:
>>
>> On Tue, Jun 10, 2014 at 5:50 PM, Lennart Poettering
>> <lennart at poettering.net> wrote:
>> > On Tue, 10.06.14 13:58, Mike Gilbert (floppym at gentoo.org) wrote:
>> >
>> >> > Symlinks should probably just be considered different type of file,
>> >> > that
>> >> > have a contents and stuff. The contents is usually a file name, and
>> >> > there's a size limit, but other than that it's just a magic kind of
>> >> > file, where the symlink destination is the conents. That's how git
>> >> > handles this, for example.
>> >> >
>> >> > I have the suspicion that this is really something to fix in your
>> >> > package manager. It should learn to handle symlink upgrades the same
>> >> > way
>> >> > as configuration file upgrades....
>> >>
>> >> The problem with installing these symlinks as part of a package is
>> >> that the user may have removed them from /etc/systemd using systemctl
>> >> disable. The next time they install systemd, the package puts the
>> >> symlinks right back.
>> >
>> > Again, that's exactly what happens for configuration files too if you
>> > use automake: on "make install" they are replaced by the original,
>> > upstream versions. Why is recreating the symlinks bad, if overriding the
>> > config files isn't?
>> >
>>
>> People don't generally remove config files; they just make changes.
>>
>> On the other hand, removing the symlinks would be a very typical
>> action due to the way systemctl disable works. There is some ambiguity
>> as to what a missing symlink means: did the sysadmin remove it, or did
>> it never exist in the first place?
>
>
> But there is `equery f`, so it shouldn't be too hard to figure this out,
> right?
>

It is one thing to query the package database with a tool designed for
users. It is quite another to modify our package manager to use the
information in an intelligent way. Patches are welcome, as always.