Library/move.sh

   1 #!/bin/bash
   2
   3 shopt -s extglob nullglob
   4
   5 if [[ ${1:0:1} == - ]]; then
   6     v=$1
   7     shift 1
   8 else
   9     v=
  10 fi
  11
  12 function df_() {
  13     free=$(df -B1 "$1")
  14     free=${free% *%*}
  15     free=${free%%*( )}
  16     free=${free##* }
  17     echo "${free}"
  18 }
  19
  20 function mv_() {
  21     src=$1
  22
  23     mkdir -p /var/stash
  24     tmp=$(mktemp -d /var/stash/_.XXXXXX)
  25     dst=${tmp}/${src##*/}
  26
  27     mkdir -- "${dst}" || {
  28         rmdir -- "${tmp}"
  29         exit 1
  30     }
  31
  32     if [[ -e ${src} ]]; then
  33         chmod --reference="${src}" "${dst}"
  34         chown --reference="${src}" "${dst}"
  35
  36         cp -aT $v "${src}" "${dst}" || {
  37             rm -rf "${tmp}"
  38             exit 1
  39         }
  40
  41         rm -rf $v "${src}"
  42     else
  43         chmod 775 "${dst}"
  44         chown root.admin "${dst}"
  45     fi
  46
  47     ln -s "${dst}" "${src}"
  48     echo -n "${src}" >"${tmp}.lnk"
  49 }
  50
  51 function shift_() {
  52     dir=${1%/}
  53
  54     if [[ -d ${dir} && ! -h ${dir} ]]; then
  55         used=$(/usr/libexec/cydia/du -bs "${dir}")
  56         used=${used%%$'\t'*}
  57         free=$(df_ /var)
  58
  59         if [[ $((used + 524288)) -lt ${free} ]]; then
  60             mv_ "${dir}"
  61         fi
  62     elif [[ ! -e ${dir} ]]; then
  63         rm -f "${dir}"
  64         mv_ "${dir}"
  65     fi
  66 }
  67
  68 shift_ "$@"