vfs/extfs/patchfs

   1 #! /bin/sh
   2
   3 # Peter Daum <gator@cs.tu-berlin.de> (Jan 1998, mc-4.1.22)
   4
   5 # override any locale for dates. But LANG override LC_TIME (at least in glibc)
   6 # unset LC_ALL
   7 # LC_TIME=C
   8 # export LC_TIME
   9 LC_ALL=C
  10 export LC_ALL
  11
  12 # paths to used programs:
  13 ncat=cat                  # regular cat
  14 zcat=zcat                 # gunzip to stdout
  15 bzcat="bzip2 -dc"         # bunzip2 to stdout
  16 file=file                 # "file" command
  17 sed=sed
  18
  19 filelist=FILELIST         # names for "special" files
  20
  21 patchfs_list ()
  22 {
  23     date=`date +"%b %d %H:%M"`
  24     perm="-r--r--r--"
  25     uid=00000000
  26     gid=00000000
  27     size=00000000
  28     nlink="  1"
  29
  30     echo "$perm $nlink $uid $gid $size $date $filelist"
  31     $cat $1 |
  32     $sed -n "/^diff /{
  33         s|^.* \([^ ]*\)$|$perm $nlink $uid $gid $size $date \1|gp
  34     }"
  35 }
  36
  37 patchfs_copyout ()
  38 {
  39     if [ "$2" = "$filelist" ]; then  # list of all affected files
  40         $cat $1 |
  41         $sed -n "/^diff /{
  42             s|^.* \([^ ]*\)$|\1|gp
  43         }" > $3
  44         exit 0
  45      fi
  46
  47     fn=`echo $2|$sed 's|/|\\\/|g'`   # escape '/' in filename
  48     $cat $1 |
  49     $sed -n "/^diff .*$fn/,/^diff /{
  50         /^diff ./{
  51             /$fn/p
  52             d
  53         }
  54         p
  55     }" > $3
  56 }
  57
  58 patchfs_run ()
  59 {
  60     exit 0
  61 }
  62
  63 type=`$file $2`
  64 case $type in
  65     *bzip*) cat=$bzcat ;;
  66     *gzip*) cat=$zcat ;;
  67     *text*) cat=$ncat ;;
  68     *) exit 1
  69 esac
  70
  71 umask 077
  72 case "$1" in
  73     list) patchfs_list $2; exit 0;;
  74     copyout) patchfs_copyout $2 $3 $4; exit 0;;
  75     run) patchfs_run; exit 0;;
  76 esac
  77
  78 exit 1
  79
  80