iankelling.org Git - small-misc-bash/blob - dircp

   1 #!/bin/bash
   2 # Copyright (C) 2016 Ian Kelling
   3
   4 # Licensed under the Apache License, Version 2.0 (the "License");
   5 # you may not use this file except in compliance with the License.
   6 # You may obtain a copy of the License at
   7
   8 #     http://www.apache.org/licenses/LICENSE-2.0
   9
  10 # Unless required by applicable law or agreed to in writing, software
  11 # distributed under the License is distributed on an "AS IS" BASIS,
  12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 # See the License for the specific language governing permissions and
  14 # limitations under the License.
  15
  16 dircp() {
  17     local help="Usage: dircp [-h|--help] DIR TARGET
  18 Copy a directory structure
  19 Doesn't overwrite any existing files."
  20     case $1 in
  21         -h|--help) echo "$help"; return ;;
  22     esac
  23     [[ $# == 2 ]] || { echo "error: need 2 arguments, got $@"; return 1; }
  24     [[ -d $1 ]] || { echo "error: $1 is not a directory"; return 1; }
  25     if [[ -e $2 && ! -d $2 ]]; then
  26         echo "error: $2 exists and is not a directory"
  27         return 1
  28     fi
  29     while read -rd ''; do
  30         mkdir -p "$2/$REPLY"
  31     done < <(find "$1" -type d -printf '%P\0')
  32 }
  33 dircp "$@"