Re: [gentoo-dev] [PATCH] fcaps.eclass: Group name portability

[Alexander Tsoy <alexander@tsoy.me>]

В Tue, 15 Apr 2014 12:06:44 +0400
Alexander Tsoy <alexander@tsoy.me> пишет:

> В Tue, 15 Apr 2014 11:11:53 +0900
> Naohiro Aota <naota@gentoo.org> пишет:
> 
> > Diego Elio Pettenò <flameeyes@flameeyes.eu> writes:
> > 
> > > I'm pretty sure we have an eclass function to get the name of the
> > > 0 group. 
> > 
> > I can't find one... but found qmail.eclass is using exactly same
> > method.
> > 
> > >       export GROUP_ROOT="$(id -gn root)"
> 
> "id -gn root" prints initial group name of the user root. This is
> exactly what you want in fcaps.eclass. In linux "id" accepts only
> username as argument, it doesn't support uid.
> 

But if you really want to convert gid=0 to groupname, then use egetent()
as also noted by Cyprien:

inherit user
...
local group=$(egetent group 0)
group=${group%%:*}

-- 
Alexander Tsoy