lib/setPath.bash

   1 function setPath () {
   2     if (( $# == 0 )); then
   3         echo "Usage: $0 VAR [PATH, ...]" >&2
   4         return 1
   5     fi
   6
   7     local -r var="$1"
   8     local paths=("${@:2}")
   9
  10     case ${#paths[@]} in
  11         0)
  12             unset $var;;
  13         1)
  14             export $var="$paths";;
  15         *)
  16             export $var="${paths[0]}"
  17             local path
  18             for path in "${paths[@]:1}"; do
  19                 local val=$(eval echo \$$var)
  20                 export $var="$val:$path"
  21             done
  22     esac
  23
  24     # THINKME: Special case for PATH: we prepend "$prefix/bin" to it.
  25     if [[ $var = "PATH" ]]; then
  26         PATH="$prefix/bin:$PATH"
  27     fi
  28 }