downgrade-openssl.sh

# see what terrible and stupid thing I just did (openssl 1.0.2-k to 1.1.0.e without updating everything else)
tail /var/log/pacman.log

# remove the newly installed openssl files by listing all the files in the packages tar and removing them (taking care not to rm directories)
tar -tf /var/cache/pacman/pkg/openssl-1.1.0.e-1-x86_64.pkg.tar.xz | #list all the files
sed s:^:/:| # put the leading / on all entries
grep -v /$ | # remove folders from list (skip if it ends with /)
xargs rm # remove all the files

# go to root and extract the old package -- like nothing ever happend
cd / 
tar -xf /var/cache/pacman/pkg/openssl-1.0.2.k-1-x86_64.pkg.tar.xz

# update everything the right way
# must include openssl b/c pacman's db thinks we already have the new one
pacman -Syu openssl