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#!/bin/zsh
setopt extendedglob nomatch errreturn
integer ret=0 br=0
cd /var/lib/archbuild
if btrfs filesystem df . &>/dev/null; then
remove() {
btrfs sub del $1
}
else
remove() {
rm -rf $1
}
fi
for chroot in */^root(/Nmh+12); do
exec 9>>| $chroot.lock
if ! flock -n 9; then
echo "<5>Not deleting $chroot; in use"
continue
fi
echo "<6>Deleting $chroot"
if ! remove $chroot &>/dev/null; then
echo "<3>Error deleting $chroot"
ret=1
fi
# We don't remove the lockfile. Less races that way
done
exit $ret