Package: dpkg Version: 1.18.3 In a project (Ubuntu Make), I have my small tests running as non root, but this one needs to install packages. What I did until now is to use (as apt is used to fetch packages from a local repo) a "fakeroot dpkg --root" wrapper with a local crafted directory to simulate, add packages and architectures to test that everything is behaving as expected. You can see that testbed setup at https://github.com/ubuntu/ubuntu-make/blob/master/tests/small/test_requirements_handler.py#L54 for instance.
The issue started recently with pkg-config shipping a post-invoke hook in /etc/dpkg/dpkg.cfg.d/pkg-config-hook-config. As this isn't running in a real chroot (I didn't want to deboostrap for the small tests, just telling to apt and dpkg "please fetch from this path and install there", the system config (good for testing) and hooks are run. However, /usr/share/pkg-config-dpkghook isn't aware about --root= option, and it's trying to do things system-wise like unlinking some architectures pkg-config files (which fortunately fails as non root). I wonder what's the correct way to handle this. I didn't find any way to tell dpkg to not run the post-invoke hooks, only to add some to the linked list of actions. I'm not even sure if this is the correct choice. Also, as the hook is harcoding paths, I can't "hide" it as non root (as a bindmount would enable me to). What do you think is the best direction for such case? dpkg growing an option for this? Having the hook being aware it's not running in a real environment?
