SYNOPSIS

This is a set of pacman hooks and script that automatically causes snapper to
perform a pre and post snapshot before and after pacman transactions, similar to
how YaST does with OpenSuse. This provides a simple way to undo changes to a
system after a pacman transaction.

INSTALLATION

Install the "snap-pac" package using pacman.

Alternatively download the latest release and signature from
https://github.com/wesbarnett/snap-pac/releases, verify the download, and then
run "make install".

I have signed the release tarball and commits with my PGP key. The key's
fingerprint is "8535CEF3F3C38EE69555BF67E4B5E45AA3B8C5C3".

DOCUMENTATION

See snap-pac(8) after installation.

TROUBLESHOOTING

After reviewing the man page, check the issues page and file a new issue if your
problem is not covered:

https://github.com/wesbarnett/snap-pac/issues

DEVELOPMENT

Check out any active branches to see what's been added. Most notable is the
"kernel" branch. In that version snap-pac not only does pre/post snapshots but
also detects if the "linux" package has been updated. If so, it symlinks your
old kernel's modules to "/usr/lib/modules" from the pre snapshot so that they
are available. Additionally it symlinks your old kernel and initramfs to a
subfolder in boot where they can be detected by GRUB. So you have the option to
boot into an older kernel if needed. Note that all of these locations need to be
in the "root" snapper configuration's subvolume. Checkout the "kernel" branch
and add PACMAN_KEEP_OLD_KERNELS="yes" to your snapper root configuration to
enable this feature. It probably won't make it into a main release, but I may
package it separately.