mdw@git.distorted.org.uk Git - distorted-letsencrypt/blob - lib/lib.sh

   1 ### -*-sh-*-
   2
   3 prog=${0##*/}
   4
   5 usage () { echo "usage: $prog$usage"; }
   6 fail () { echo >&2 "$prog: $*"; exit 1; }
   7 fail_usage () { usage >&2; exit 1; }
   8
   9 run_as_user () {
  10   case $(id -un) in
  11     $user) ;;
  12     *) exec sudo -u$user "$0" "$@" ;;
  13   esac
  14   HOME=$home; export HOME
  15   PATH=$home/bin:/usr/local/bin:/bin:/usr/bin; export PATH
  16 }
  17
  18 sanitize () { echo "$1" | tr -c 'A-Za-z0-9-\n' _; }
  19
  20 prepare_tmp () {
  21   tag=$1
  22
  23   tmp=$home/tmp/$(sanitize "$tag").$$
  24   rm -rf $tmp
  25   mkdir $tmp
  26   trap 'cd $home; rm -rf $tmp' EXIT INT TERM
  27 }