iankelling.org Git - lnf/blob - lnf

   1 #!/bin/bash
   2 # Copyright (C) 2014 Ian Kelling
   3 # This program is under GPL v. 3 or later, see <http://www.gnu.org/licenses/>
   4
   5 lnf() {
   6     local help="lnf [--help] LN_ARGUMENTS...
   7 Create symlinks conveniently.
   8 Remove existing file/links using trash-put or rm -rf if it is not available.
   9 Create directory if needed. Finally, ln -s -- LN_ARGUMENTS"
  10     if [[ $1 == --help ]]; then
  11         echo "$help"
  12         return 0
  13     fi
  14
  15     local remove x
  16     if type -P dircolors >/dev/null; then
  17         remove=trash-put
  18     else
  19         remove="rm -rf"
  20     fi
  21
  22     if [[ $# -ge 3 && ! -d ${!#} ]]; then
  23         mkdir -p "${!#}"
  24     elif [[ $# -ge 2 && -d ${!#} ]]; then
  25         local oldcwd=$PWD
  26         cd ${!#} # last arg
  27         for x in "${@:1:$(($#-1))}"; do # all but last arg
  28             # remove any trailing slashes
  29             x="${x%%+(/)}"
  30             # remove any leading directory components
  31             x="${x##*/}"
  32             [[ -e "$x" || -L "$x" ]] && $remove "$x"
  33         done
  34         cd "$oldcwd"
  35     elif [[ $# -eq 2 ]]; then
  36         if [[ -e "$2" || -L "$2" ]]; then
  37             $remove "$2"
  38         elif [[ ! -d "$2/.." ]]; then
  39             mkdir -p "$2/.."
  40         fi
  41     elif  [[ $# -eq 1 ]]; then
  42         [[ -e "${1##*/}" || -L "${1##*/}" ]] && $remove "${1##*/}"
  43     fi
  44     ln -s -- "$@"
  45 }
  46 lnf "$@"