lustre/kernel_patches/scripts/rpatch

   1 #!/bin/sh
   2
   3 . patchfns >/dev/null || . /usr/lib/patch-scripts/patchfns >/dev/null || { \
   4         echo "Impossible to find my library 'patchfns'."
   5         echo "Check your install, or go to the right directory"
   6         exit 1
   7 }
   8
   9 do_remove()
  10 {
  11         if patch -R -p1 -s -i $P/patches/"$1".patch
  12         then
  13                 true
  14         else
  15                 echo SOMETHING WENT WRONG
  16                 exit 1
  17         fi
  18 }
  19
  20 kill_old_ones()
  21 {
  22         FILES=$(cat $P/pc/$1.pc)
  23         for file in $FILES
  24         do
  25                 rm -f "$file"~"$1"
  26         done
  27 }
  28
  29 usage()
  30 {
  31         echo "Usage: rpatch patchname"
  32         exit 1
  33 }
  34
  35 if [ $# == 0 ]
  36 then
  37         usage
  38 fi
  39
  40 PATCH_NAME=$(stripit $1)
  41
  42 warn_top_current
  43
  44 if is_applied "$PATCH_NAME"
  45 then
  46         if can_remove "$PATCH_NAME"
  47         then
  48                 do_remove "$PATCH_NAME"
  49                 kill_old_ones "$PATCH_NAME"
  50                 remove_from_db "$PATCH_NAME"
  51         else
  52                 echo "$PATCH_NAME" does not remove cleanly
  53                 exit 1
  54         fi
  55 else
  56         echo "$PATCH_NAME" is not applied
  57         exit 1
  58 fi
  59
  60 top=$(top_patch)
  61 if [ x"$top" == x ]
  62 then
  63         msg="no patches applied"
  64 else
  65         msg="now at $top"
  66 fi
  67
  68 echo Removed $PATCH_NAME, $msg
  69