#!/bin/sh
set -e # exit on failure
IFS=$(printf '\n\t') # smarter ifs
[ "$1" = "-d" ] && tail -n+10 "$2" | zstd -cd | ifne sponge "$2" && exit
[ "$1" = "-p" ] && p="$2" && shift 2 # save prefix if present
{ cat << 'EOF'; zstdmt -c19 "$@"; } | sed "2s/$/${1##*.})/;7s/^/$p /" | sponge "$1"
#!/bin/sh
dir=$(dirname "$0") out=$(mktemp -t .zzXXXX.
tail -n+10 "$0" | zstd -cd > "$out"
chmod +x "$out"
ln -s "$out" "$dir"
trap "res=$?" 0 1 2 3 5 10 13 15
"$dir/$(basename "$out")" "$@"
rm "$out" "$dir/$(basename "$out")"
exit $res
EOF