lustre/kernel_patches/scripts/poppatch

   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 usage()
  10 {
  11         echo "Usage: poppatch [npatches]"
  12         exit 1
  13 }
  14
  15 doit()
  16 {
  17         echo $* 1>&2
  18         $* || {
  19                 echo oops
  20                 exit 1
  21         }
  22 }
  23
  24 if [ $# -gt 1 ]
  25 then
  26         usage
  27 fi
  28
  29 NR=1
  30 STOP_AT=""
  31 if [ $# -eq 1 ]
  32 then
  33         if is_numeric $1
  34         then
  35                 NR=$1
  36         else
  37                 NR=1000
  38                 STOP_AT=$(stripit $1)
  39         fi
  40 fi
  41
  42 pop_one()
  43 {
  44         TOP_PATCH=$(top_patch)
  45         if [ x$TOP_PATCH == x ]
  46         then
  47                 echo "no patches applied"
  48                 exit 0
  49         else
  50                 popped_patch="$(top_patch)"
  51                 if ! rpatch $(top_patch)
  52                 then
  53                         echo still at $(top_patch)
  54                         exit 1
  55                 fi
  56                 echo
  57         fi
  58 }
  59
  60 for i in $(seq 1 $NR)
  61 do
  62         pop_one
  63         if [ x$STOP_AT != "x" ]
  64         then
  65                 if [ $STOP_AT == $(toppatch) ]
  66                 then
  67                         sum-series applied-patch
  68                         exit 0
  69                 fi
  70         fi
  71 done
  72 sum-series applied-patch