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=$1
  22
  23     mkdir -p /var/stash
  24     /usr/libexec/cydia/setnsfpn /var/stash
  25
  26     tmp=$(mktemp -d /var/stash/_.XXXXXX)
  27     dst=${tmp}/${src##*/}
  28
  29     chmod 755 "${tmp}"
  30     chown root.admin "${tmp}"
  31
  32     mkdir -- "${dst}" || {
  33         rmdir -- "${tmp}"
  34         exit 1
  35     }
  36
  37     if [[ -e ${src} ]]; then
  38         chmod --reference="${src}" "${dst}"
  39         chown --reference="${src}" "${dst}"
  40
  41         cp -aT $v "${src}" "${dst}" || {
  42             rm -rf "${tmp}"
  43             exit 1
  44         }
  45
  46         rm -rf $v "${src}"
  47     else
  48         chmod 775 "${dst}"
  49         chown root.admin "${dst}"
  50     fi
  51
  52     ln -s "${dst}" "${src}"
  53     echo -n "${src}" >"${tmp}.lnk"
  54 }
  55
  56 function shift_() {
  57     dir=${1%/}
  58
  59     if [[ -d ${dir} && ! -h ${dir} ]]; then
  60         used=$(/usr/libexec/cydia/du -bs "${dir}")
  61         used=${used%%$'\t'*}
  62         free=$(df_ /var)
  63
  64         if [[ $((used + 524288)) -lt ${free} ]]; then
  65             mv_ "${dir}"
  66         fi
  67     elif [[ ! -e ${dir} ]]; then
  68         rm -f "${dir}"
  69         mv_ "${dir}"
  70     fi
  71 }
  72
  73 shift_ "$@"