- make HEAD from b_post_cmd3

[fs/lustre-release.git] / lustre / kernel_patches / scripts / poppatch

diff --git a/lustre/kernel_patches/scripts/poppatch b/lustre/kernel_patches/scripts/poppatch
new file mode 100755 (executable)
index 0000000..70055d6
--- /dev/null
+++ b/lustre/kernel_patches/scripts/poppatch
@@ -0,0 +1,72 @@
+#!/bin/sh
+
+. patchfns >/dev/null || . /usr/lib/patch-scripts/patchfns >/dev/null || { \
+       echo "Impossible to find my library 'patchfns'."
+       echo "Check your install, or go to the right directory"
+       exit 1
+}
+
+usage()
+{
+       echo "Usage: poppatch [npatches]"
+       exit 1
+}
+
+doit()
+{
+       echo $* 1>&2
+       $* || {
+               echo oops
+               exit 1 
+       }
+}
+
+if [ $# -gt 1 ]
+then
+       usage
+fi
+
+NR=1
+STOP_AT=""
+if [ $# -eq 1 ]
+then
+       if is_numeric $1
+       then
+               NR=$1
+       else
+               NR=1000
+               STOP_AT=$(stripit $1)
+       fi
+fi
+
+pop_one()
+{
+       TOP_PATCH=$(top_patch)
+       if [ x$TOP_PATCH == x ]
+       then
+               echo "no patches applied"
+               exit 0
+       else
+               popped_patch="$(top_patch)"
+               if ! rpatch $(top_patch)
+               then
+                       echo still at $(top_patch)
+                       exit 1
+               fi
+               echo
+       fi
+}
+
+for i in $(seq 1 $NR)
+do
+       pop_one
+       if [ x$STOP_AT != "x" ]
+       then
+               if [ $STOP_AT == $(toppatch) ]
+               then
+                        sum-series applied-patch
+                       exit 0
+               fi
+       fi
+done
+sum-series applied-patch