On Sat, 13 Aug 2016 15:45:36 +0200, David Kalnischkies wrote: Thanks for looking into this issue!
> The problem for cme while caused by the same change in apt, is caused in > a completely different way through. Ack, I realized this later ... > /var/lib/apt/var/lib/dpkg/status > suggests that apts "configuration" wasn't initialized before "system" > is, so that Dir, Dir::State and Dir::State::Status are empty. Interestingly not, I checked the variables. And the next interesting thing is that /usr/share/perl5/Config/Model/Dpkg/Dependency.pm does the same as /usr/share/doc/libapt-pkg-perl/examples/apt-cache the latter works, the former has an undefined $apt_cache variable. /usr/share/perl5/Config/Model/Dpkg/Dependency.pm : use AptPkg::Config '$_config'; use AptPkg::System '$_system'; use AptPkg::Version; use AptPkg::Cache ; $_config->init; $_system = $_config->system; my $vs = $_system->versioning; my $apt_cache = AptPkg::Cache->new ; /usr/share/doc/libapt-pkg-perl/examples/apt-cache : use AptPkg::Config '$_config'; use AptPkg::System '$_system'; use AptPkg::Cache; $_config->init; $_system = $_config->system; $_config->{quiet} = 2; my $cache = AptPkg::Cache->new; > So Dir has > no default value in this codepath (it should have /), which results in > Dir::State::Status being set to var/lib/dpkg/status and later then this > setting is read it will be noticed that the setting isn't absolute, so > Dir and Dir::State are considered which are by now set and hence result > in a /var/lib/apt to be prefixed… Hm, maybe Dir is empty, I only checked Dir::State::Status which was indeed var/lib/dpkg/status. Let's look again: 'Dir' => '/', 'Dir::State' => 'var/lib/apt/', 'Dir::State::status' => 'var/lib/dpkg/status', (Same for /usr/share/doc/libapt-pkg-perl/examples/apt-cache.) So this is still a miracle to me why $apt_cache in Config::Model::Dpkg::Dependency is undefined but $cache in the libapt-pkg-perl example script works. > I am going to fix this in apt so that this problem will be hidden again, Thanks! > but I would suggest looking into initializing apt in the right order or > you will eventually will run again into issues with config options not > having the option set they are supposed to have, which is why I leave > this bug here – unsure if its a cme or libapt-pkg-perl problem, I am > just not enough of a perler to know… Me neither, it seems :/ (cc'ing the 2 authors, maybe they find the issue quicker in their code.) Cheers, gregor -- .''`. Homepage https://info.comodo.priv.at/ - OpenPGP key 0xBB3A68018649AA06 : :' : Debian GNU/Linux user, admin, and developer - https://www.debian.org/ `. `' Member of VIBE!AT & SPI, fellow of the Free Software Foundation Europe `- NP: Various Artists: Theme From Harry's Game
signature.asc
Description: Digital Signature