A simple script to identify files not tracked by Portage package manager. This package can be installed via the GURU overlay.
# emerge -av app-portage/portage-lostfiles
Over time a large number of untracked files can accumulate, either created manually or leftovers from uninstalled packages, which can result in subtle bugs or misconfigurations.
Symlinks are not reported as lost as long as the link target exists and is tracked,
this is the same behavior as implemented in equery b <path>.
Some common paths are not reported (e.g.: /etc/group, /etc/machine-id, ...),
those are defined in IGNORED_PATHS and PKG_PATHS in lostfiles.py.
git clone https://github.com/gcarq/portage-lostfiles.git
cd portage-lostfiles
$ ./lostfiles.py
/etc/env.d/000opengl
/etc/env.d/99local
/etc/modprobe.d/blacklist.conf
/etc/X11/xorg.conf.d/20opengl.conf
/etc/sysctl.d/98-idea.conf
...Ignore built-in whitelist and report all files
$ ./lostfiles.py --strict
/usr/share/info/dir
/usr/share/applications/mimeinfo.cache
/usr/share/binutils-data/x86_64-pc-linux-gnu/2.39/info/dir
/usr/share/mime/XMLnamespaces
/usr/share/mime/aliases
...Override default paths
$ ./lostfiles.py -p /lib -p /lib32 -p /lib64- python >= 3.8
- portage >= 3, < 4