set -eE -o pipefail
trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
-[[ $EUID == 0 ]] || exec sudo -E "$BASH_SOURCE" "$@"
+[[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
-x="$(readlink -f "$BASH_SOURCE")"; cd ${x%/*}
+x="$(readlink -f -- "${BASH_SOURCE[0]}")"; cd ${x%/*} # directory of this file
-e() { echo "$*"; "$@"; }
-
# scripts that would interfere with unmounting /a, put them elsewhere
-e install mail-cert-cron mount-latest-subvol check-subvol-stale /usr/local/bin
+install /a/bin/log-quiet/log-once switch-mail-host btrbk-run mount-latest-subvol \
+ check-subvol-stale /usr/local/bin
+install /a/bin/errhandle/err /usr/local/lib