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=$1
  22
  23     if [[ ! -e /var/stash ]]; then
  24         mkdir -p /var/db/stash
  25         /usr/libexec/cydia/setnsfpn /var/db/stash
  26         ln -s -t /var /var/db/stash
  27     elif [[ -d /var/stash ]]; then
  28         /usr/libexec/cydia/setnsfpn /var/stash
  29     fi
  30
  31     tmp=$(mktemp -d /var/stash/_.XXXXXX)
  32     dst=${tmp}/${src##*/}
  33
  34     chmod 755 "${tmp}"
  35     chown root.admin "${tmp}"
  36
  37     mkdir -- "${dst}" || {
  38         rmdir -- "${tmp}"
  39         exit 1
  40     }
  41
  42     echo -n "${src}" >"${tmp}.lnk"
  43
  44     if [[ -e ${src} ]]; then
  45         chmod --reference="${src}" "${dst}"
  46         chown --reference="${src}" "${dst}"
  47
  48         cp -aT $v "${src}" "${dst}" || {
  49             rm -rf "${tmp}"
  50             exit 1
  51         }
  52
  53         mv $v "${src}" "${src}.moved"
  54         ln -s "${dst}" "${src}"
  55         rm -rf $v "${src}.moved"
  56     else
  57         chmod 775 "${dst}"
  58         chown root.admin "${dst}"
  59         ln -s "${dst}" "${src}"
  60     fi
  61 }
  62
  63 function shift_() {
  64     dir=${1%/}
  65
  66     if [[ -d ${dir} && ! -h ${dir} ]]; then
  67         used=$(/usr/libexec/cydia/du -bs "${dir}")
  68         used=${used%%$'\t'*}
  69         free=$(df_ /var)
  70
  71         if [[ $((used + 524288)) -lt ${free} ]]; then
  72             mv_ "${dir}"
  73         fi
  74     elif [[ ! -e ${dir} ]]; then
  75         rm -f "${dir}"
  76         mv_ "${dir}"
  77     fi
  78 }
  79
  80 shift_ "$@"