#!/bin/sh
set -eu
 
unitdir="$1"
target="$2"
unit="$3"
 
case "$target" in
        */?*) # a path, but not just a slash at the end
                dir="${DESTDIR:-}${target}"
                ;;
        *)
                dir="${DESTDIR:-}${unitdir}/${target}"
                ;;
esac
 
unitpath="${DESTDIR:-}${unitdir}/${unit}"
 
case "$target" in
        */)
                mkdir -p -m 0755 "$dir"
                ;;
        *)
                mkdir -p -m 0755 "$(basename "$dir")"
                ;;
esac
 
ln -vfs --relative "$unitpath" "$dir"