--- /dev/null
+#!/bin/bash
+#
+# Synchronize ggml changes to llama.cpp
+#
+# Usage:
+#
+# $ cd /path/to/llama.cpp
+# $ ./scripts/sync-ggml-am.sh
+#
+
+set -e
+
+sd=$(dirname $0)
+cd $sd/../
+
+SRC_LLAMA=$(pwd)
+SRC_GGML=$(cd ../ggml; pwd)
+
+if [ ! -d $SRC_GGML ]; then
+ echo "ggml not found at $SRC_GGML"
+ exit 1
+fi
+
+lc=$(cat $SRC_LLAMA/scripts/sync-ggml.last)
+echo "Syncing ggml changes since commit $lc"
+
+cd $SRC_GGML
+
+git log --oneline $lc..HEAD
+
+git format-patch $lc --stdout -- \
+ include/ggml/ggml*.h \
+ src/ggml*.h \
+ src/ggml*.c \
+ src/ggml*.cpp \
+ src/ggml*.m \
+ src/ggml*.metal \
+ src/ggml*.cu \
+ tests/test-opt.cpp \
+ tests/test-grad0.cpp \
+ tests/test-quantize-fns.cpp \
+ tests/test-quantize-perf.cpp \
+ tests/test-backend-ops.cpp \
+ > $SRC_LLAMA/ggml-src.patch
+
+# delete files if empty
+if [ ! -s $SRC_LLAMA/ggml-src.patch ]; then
+ rm -v $SRC_LLAMA/ggml-src.patch
+fi
+
+cd $SRC_LLAMA
+
+if [ -f $SRC_LLAMA/ggml-src.patch ]; then
+ # replace PR numbers
+ #
+ # Subject: some text (#1234)
+ # Subject: some text (ggml/1234)
+ cat ggml-src.patch | sed -e 's/^Subject: \(.*\) (#\([0-9]*\))/Subject: \1 (ggml\/\2)/' > ggml-src.patch.tmp
+ mv ggml-src.patch.tmp ggml-src.patch
+
+ cat ggml-src.patch | sed -e 's/^\(.*\) (#\([0-9]*\))$/\1 (ggml\/\2)/' > ggml-src.patch.tmp
+ mv ggml-src.patch.tmp ggml-src.patch
+
+ # replace filenames:
+ #
+ # src/ggml.c -> ggml.c
+ # src/ggml-alloc.c -> ggml-alloc.c
+ # src/ggml-backend-impl.h -> ggml-backend-impl.h
+ # src/ggml-backend.c -> ggml-backend.c
+ # src/ggml-cuda.cu -> ggml-cuda.cu
+ # src/ggml-cuda.h -> ggml-cuda.h
+ # src/ggml-impl.h -> ggml-impl.h
+ # src/ggml-metal.h -> ggml-metal.h
+ # src/ggml-metal.m -> ggml-metal.m
+ # src/ggml-metal.metal -> ggml-metal.metal
+ # src/ggml-mpi.h -> ggml-mpi.h
+ # src/ggml-mpi.c -> ggml-mpi.c
+ # src/ggml-opencl.cpp -> ggml-opencl.cpp
+ # src/ggml-opencl.h -> ggml-opencl.h
+ # src/ggml-quants.c -> ggml-quants.c
+ # src/ggml-quants.h -> ggml-quants.h
+ # include/ggml/ggml.h -> ggml.h
+ # include/ggml/ggml-alloc.h -> ggml-alloc.h
+ # include/ggml/ggml-backend.h -> ggml-backend.h
+ #
+ # tests/test-opt.cpp -> tests/test-opt.cpp
+ # tests/test-grad0.cpp -> tests/test-grad0.cpp
+ # tests/test-quantize-fns.cpp -> tests/test-quantize-fns.cpp
+ # tests/test-quantize-perf.cpp -> tests/test-quantize-perf.cpp
+ # tests/test-backend-ops.cpp -> tests/test-backend-ops.cpp
+
+ cat ggml-src.patch | sed \
+ -e 's/src\/ggml\.c/ggml.c/g' \
+ -e 's/src\/ggml-alloc\.c/ggml-alloc.c/g' \
+ -e 's/src\/ggml-backend-impl\.h/ggml-backend-impl.h/g' \
+ -e 's/src\/ggml-backend\.c/ggml-backend.c/g' \
+ -e 's/src\/ggml-cuda\.cu/ggml-cuda.cu/g' \
+ -e 's/src\/ggml-cuda\.h/ggml-cuda.h/g' \
+ -e 's/src\/ggml-impl\.h/ggml-impl.h/g' \
+ -e 's/src\/ggml-metal\.h/ggml-metal.h/g' \
+ -e 's/src\/ggml-metal\.m/ggml-metal.m/g' \
+ -e 's/src\/ggml-metal\.metal/ggml-metal.metal/g' \
+ -e 's/src\/ggml-mpi\.h/ggml-mpi.h/g' \
+ -e 's/src\/ggml-mpi\.c/ggml-mpi.c/g' \
+ -e 's/src\/ggml-opencl\.cpp/ggml-opencl.cpp/g' \
+ -e 's/src\/ggml-opencl\.h/ggml-opencl.h/g' \
+ -e 's/src\/ggml-quants\.c/ggml-quants.c/g' \
+ -e 's/src\/ggml-quants\.h/ggml-quants.h/g' \
+ -e 's/include\/ggml\/ggml\.h/ggml.h/g' \
+ -e 's/include\/ggml\/ggml-alloc\.h/ggml-alloc.h/g' \
+ -e 's/include\/ggml\/ggml-backend\.h/ggml-backend.h/g' \
+ -e 's/tests\/test-opt\.cpp/tests\/test-opt.cpp/g' \
+ -e 's/tests\/test-grad0\.cpp/tests\/test-grad0.cpp/g' \
+ -e 's/tests\/test-quantize-fns\.cpp/tests\/test-quantize-fns.cpp/g' \
+ -e 's/tests\/test-quantize-perf\.cpp/tests\/test-quantize-perf.cpp/g' \
+ -e 's/tests\/test-backend-ops\.cpp/tests\/test-backend-ops.cpp/g' \
+ > ggml-src.patch.tmp
+ mv ggml-src.patch.tmp ggml-src.patch
+
+ git am ggml-src.patch
+
+ rm -v $SRC_LLAMA/ggml-src.patch
+fi
+
+# update last commit
+cd $SRC_GGML
+git log -1 --format=%H > $SRC_LLAMA/scripts/sync-ggml.last
+
+echo "Done"
+
+exit 0