[IA64] sparse-merge: check SPARSEDIR for modifications

Check SPARSEDIR for modifications before allowing the merge.
This removes the need for the FIXME.  Additionally clean up
empty diffs at the end of the run.

Signed-off-by: Aron Griffis <aron@hp.com>

diff --git a/xen/arch/ia64/tools/sparse-merge b/xen/arch/ia64/tools/sparse-merge
index dbca0c99beb790e7480f8155336509538bb09ec6..66433187c4f15dba3bd5b7ede7773f44eb6b83c6 100755 (executable)
--- a/xen/arch/ia64/tools/sparse-merge
+++ b/xen/arch/ia64/tools/sparse-merge
@@ -14,16 +14,23 @@
 : ${ARCH:=ia64}
 
 SPARSEDIR=linux-2.6-xen-sparse
+WD=$PWD
 
 if [ ! -d $SPARSEDIR ]; then
        echo "Can't find $SPARSEDIR directory."
        exit
 fi
 
-WD=$PWD
-# We want the linux upsream tree to be at the OLDTAG to get the OLDTAG-Xen diff.
+# Check for modified files in the sparse tree before starting
+if hg st $SPARSEDIR | head | grep .; then
+    echo
+    echo "$SPARSEDIR contains modifications, please clean it up first"
+    exit
+fi
+
+# We want the linux upstream tree to be at the OLDTAG to get the OLDTAG-Xen diff.
 # Save current revision to restore when done
-cd $LINUXPATH
+cd $LINUXPATH || exit 1
 OLDCSET=$(hg parents | awk '/^changeset:/{print($2)}' | cut -f 1 -d :)
 for t in $OLDTAG $NEWTAG; do
     if ! hg tags | cut -f1 -d' ' | grep -Fx $t; then
@@ -36,6 +43,7 @@ for t in $OLDTAG $NEWTAG; do
     fi
 done
 hg up -C $OLDTAG || exit 1
+
 cd $WD
 for i in $(hg manifest | awk '{print($3)}' | grep $SPARSEDIR | grep "$ARCH"); do
        cd $WD
@@ -58,9 +66,6 @@ for i in $(hg manifest | awk '{print($3)}' | grep $SPARSEDIR | grep "$ARCH"); do
        cd $DIRNAME
        XENDIR=$(pwd)
 
-       ### FIXME ###
-       hg revert $FILENAME
-
        ORIGPATH=$(echo $i | sed -e "s/^$SPARSEDIR/./")
        APATH=$(echo $i | sed -e "s/^$SPARSEDIR/a/")
        BPATH=$(echo $i | sed -e "s/^$SPARSEDIR/b/")
@@ -85,7 +90,7 @@ for i in $(hg manifest | awk '{print($3)}' | grep $SPARSEDIR | grep "$ARCH"); do
                fi
                TONEWREJ=$(wc -l ${FILENAME}.rej | \
                           awk '{print($1)}')
-               hg revert $FILENAME
+               hg st $FILENAME | grep -q . && hg revert $FILENAME
                rm -f ${FILENAME}.rej ${FILENAME}.orig
                diff -uN $DIFFPATH $FILENAME | \
                    sed -e "s,^--- $DIFFPATH,--- $FILENAME," \
@@ -134,6 +139,6 @@ for i in $(hg manifest | awk '{print($3)}' | grep $SPARSEDIR | grep "$ARCH"); do
                        echo "SUCCESS (Upstream applied)"
        fi
 done
+find $SPARSEDIR -name \*.diff -empty | xargs -r rm -f
 cd $LINUXPATH
 hg up -C $OLDCSET
-cd $WD