src/vfs/extfs/helpers/urar.in

   1 #! /bin/sh
   2 #
   3 # Written by andrey joukov
   4 # (C) 1996 2:5020/337.13@fidonet.org
   5 # Updated by christian.gennerat@alcatel.fr 1999
   6 #            Andrew V. Samoilov <sav@bcs.zp.ua> 2000
   7 # beta version 2.0
   8 #
   9 # rar and unrar can be found on http://www.rarlabs.com/
  10
  11 RAR=rar
  12 UNRAR=$RAR
  13
  14 # Prefer unrar (freeware).  Try to find unrar in $PATH.
  15 save_IFS="$IFS"; IFS=:
  16 for dir in $PATH; do
  17     IFS="$save_IFS"
  18     test -z "$dir" && dir=.
  19     if test -x "$dir/unrar" -a -f "$dir/unrar"; then
  20         UNRAR="$dir/unrar"
  21         break
  22     fi
  23 done
  24
  25 if [ ! -x $UNRAR -a -x $RAR ]; then
  26     UNRAR=$RAR
  27 fi
  28
  29 mcrarfs_list ()
  30 {
  31      $UNRAR v -c- -cfg- "$1" | @AWK@ -v uid=`id -u` -v gid=`id -g` '
  32 BEGIN { flag=0 }
  33 /^-------/ { flag++; if (flag > 1) exit 0; next }
  34 flag==1 {
  35     str = substr($0, 2)
  36     getline
  37     split($4, a, "-")
  38     if (index($6, "D") != 0)
  39         $6="drwxr-xr-x"
  40     else
  41         if (index($6, ".") != 0)
  42             $6="-rw-r--r--"
  43     printf "%s 1 %s %s %d %02d/%02d/%02d %s ./%s\n", $6, uid, gid, $1, a[2], a[1], a[3], $5, str
  44 }'
  45 }
  46
  47 mcrarfs_copyin ()
  48 {
  49 # copyin by christian.gennerat@alcatel.fr
  50 # preserve pwd. It is clean, but is it necessary?
  51     pwd=`pwd`
  52 # Create a directory and copy in it the tmp file with the good name
  53     mkdir "$3.dir"
  54     cd "$3.dir"
  55     di="${2%/*}"
  56 # if file is to be written upper in the archive tree, make fake dir
  57     if test x"$di" != x"${2##*/}" ; then
  58         mkdir -p "$di"
  59     fi
  60     cp -fp "$3" "$3.dir/$2"
  61     $RAR a "$1" "$2" >/dev/null
  62     cd "$pwd"
  63     rm -rf "$3.dir"
  64 }
  65
  66 mcrarfs_copyout ()
  67 {
  68     $UNRAR p -p- -c- -cfg- -inul "$1" "$2" > "$3"
  69 }
  70
  71 mcrarfs_mkdir ()
  72 {
  73 # preserve pwd. It is clean, but is it necessary?
  74     pwd=`pwd`
  75 # Create a directory and create in it a tmp directory with the good name
  76     dir=`mktemp -d "${MC_TMPDIR:-/tmp}/mctmpdir-urar.XXXXXX"` || exit 1
  77     cd "$dir"
  78     mkdir -p "$2"
  79 # rar cannot create an empty directory
  80     touch "$2"/.rarfs
  81     $RAR a -r "$1" "$2" >/dev/null
  82     $RAR d "$1" "$2/.rarfs" >/dev/null
  83     cd "$pwd"
  84     rm -rf "$dir"
  85 }
  86
  87 mcrarfs_rm ()
  88 {
  89     $RAR d "$1" "$2" >/dev/null
  90 }
  91
  92 umask 077
  93
  94 cmd="$1"
  95 shift
  96
  97 case "$cmd" in
  98   # Workaround for a bug in mc - directories must precede files to
  99   # avoid duplicate entries, so we sort output by filenames
 100   list)    mcrarfs_list    "$@" | sort -k 8 ;;
 101   rm)      mcrarfs_rm      "$@" ;;
 102   rmdir)   mcrarfs_rm      "$@" ;;
 103   mkdir)   mcrarfs_mkdir   "$@" ;;
 104   copyin)  mcrarfs_copyin  "$@" ;;
 105   copyout) mcrarfs_copyout "$@" ;;
 106   *) exit 1 ;;
 107 esac
 108 exit 0