- make HEAD from b_post_cmd3

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

diff --git a/lustre/kernel_patches/scripts/trypatch b/lustre/kernel_patches/scripts/trypatch
new file mode 100755 (executable)
index 0000000..2e3cd15
--- /dev/null
+++ b/lustre/kernel_patches/scripts/trypatch
@@ -0,0 +1,72 @@
+#!/bin/sh
+
+#
+# Fork the next patch in the series
+#
+
+. 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: trypatch <newname>"
+       exit 1
+}
+
+if [ $# -ne 1 ]
+then
+       usage
+fi
+
+NEW=$1
+BASE=`stripit $NEW`
+SERIES=series
+
+if [ ! -e $SERIES ]
+then
+       echo 'File "series" not found'
+       exit 1
+fi
+
+if  grep $BASE $SERIES >& /dev/null  ; then 
+        echo "Patch $NEW already exists in series"
+        exit 1
+fi
+
+if [ ! -f $P/patches/$BASE.patch ] ; then 
+        echo "Patch $NEW doesn't exist as a file"
+        exit 1
+fi
+
+$TMPSERIES=$(mktemp /tmp/series-XXXXXXXX)
+top=$(toppatch)
+if [ x"$top" == x ]
+then
+       todo=$(head -1 $SERIES)
+else
+       last_in_series=$(stripit $(tail -1 $SERIES))
+       if [ $last_in_series == $top ]
+       then
+               echo "Series fully applied.  Ends at $top"
+               exit 0
+       fi
+       todo=$(grep -C1 "^$top\.patch" $SERIES | tail -1)
+       if [ x$todo = x ]
+       then
+               todo=$(head -1 $SERIES)
+       fi
+fi
+
+if  patch -p1 -i $P/patches/$BASE.patch ; then 
+    patch -R -p1 -i $P/patches/$BASE.patch
+
+    $basetodo=$(basename $todo)
+    sed "s/$todo/$BASE/" < $SERIES > $TMPSERIES
+    mv -f $TMPSERIES $SERIES
+    echo "Replaced $todo with $BASE"
+else 
+    echo "Failed to replace $todo with $BASE"
+fi