#!/bin/sh

# merge any directory with the current one if it contains only one entry.

for path in "$@"
do
  # test if directory that contains only one entry.
  if test -d "$path" -a 1 -eq $(ls "$path" --almost-all | wc -l)
  then
    # handle contents with the same name as the directory.
    tmp="$(basename "$path")-splice-single"
    mv "$path" "$tmp"
    mv -t . "$tmp"/*
    rmdir "$tmp"
  fi
done