diff --git a/mace/python/tools/encrypt_opencl_codegen.py b/mace/python/tools/encrypt_opencl_codegen.py
index cfb9c91e1c7f3faf9bcc26e5a17be22796f81f4f..957c8a51ee197e7139ab720ca51923cc7827a202 100644
--- a/mace/python/tools/encrypt_opencl_codegen.py
+++ b/mace/python/tools/encrypt_opencl_codegen.py
@@ -87,6 +87,8 @@ def encrypt_opencl_codegen(cl_kernel_dir, output_path):
     with open(output_path, "w") as w_file:
         w_file.write(cpp_cl_encrypted_kernel)
 
+    print('Generate OpenCL kernel done.')
+
 
 def parse_args():
     """Parses command line arguments."""
diff --git a/mace/tools/git/gen_version_source.sh b/mace/tools/git/gen_version_source.sh
index 10309b1d1ee4df05308ef074afb3676b1789d98e..e29931a4978b88646eb65293e601cbe65eea931b 100644
--- a/mace/tools/git/gen_version_source.sh
+++ b/mace/tools/git/gen_version_source.sh
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-MACE_SOURCE_DIR=$(dirname $0)
+MACE_SOURCE_DIR=$(dirname $(dirname $(dirname $(dirname $0))))
 
 OUTPUT_FILENAME=$1
 if [[ -z "${OUTPUT_FILENAME}}" ]]; then
@@ -28,16 +28,16 @@ fi
 
 mkdir -p $OUTPUT_DIR
 
-pushd $MACE_SOURCE_DIR
-
 DATE_STR=$(date +%Y%m%d)
-GIT_VERSION=$(git describe --long --tags)
+GIT_VERSION=$(git --git-dir=${MACE_SOURCE_DIR}/.git --work-tree=${MACE_SOURCE_DIR} describe --long --tags)
 if [[ $? != 0 ]]; then
   GIT_VERSION=unknown-${DATE_STR}
 else
   GIT_VERSION=${GIT_VERSION}-${DATE_STR}
 fi
 
+echo $GIT_VERSION
+
 cat <<EOF > ${OUTPUT_FILENAME}
 // Copyright 2018 Xiaomi, Inc.  All rights reserved.
 //
@@ -61,4 +61,3 @@ const char *MaceVersion() { return "MACEVER-${GIT_VERSION}" + 8; }
 }  // namespace mace
 EOF
 
-popd
diff --git a/repository/git/git_configure.bzl b/repository/git/git_configure.bzl
index b46c74e557fdc061fb3e71216d9938c9eab5b81d..9ef9838f0721af41c6ed765648e716636a1f45ec 100644
--- a/repository/git/git_configure.bzl
+++ b/repository/git/git_configure.bzl
@@ -9,6 +9,9 @@ def _git_version_conf_impl(repository_ctx):
 
   generated_files_path = repository_ctx.path("gen")
 
+  unused_var = repository_ctx.path(Label("//:.git/HEAD"))
+  unused_var = repository_ctx.path(Label("//:.git/refs/heads/master"))
+
   repository_ctx.execute([
       'bash', '%s/mace/tools/git/gen_version_source.sh' % mace_root_path
       , '%s/version' % generated_files_path
@@ -17,5 +20,4 @@ def _git_version_conf_impl(repository_ctx):
 
 git_version_repository = repository_rule(
     implementation = _git_version_conf_impl,
-    local=True,
 )
diff --git a/repository/opencl-kernel/opencl_kernel_configure.bzl b/repository/opencl-kernel/opencl_kernel_configure.bzl
index a0c715c75eaf2478bd18a7b283915b704855029c..1e650b4f64c01a193f1bf1b209dd12ad8d6be211 100644
--- a/repository/opencl-kernel/opencl_kernel_configure.bzl
+++ b/repository/opencl-kernel/opencl_kernel_configure.bzl
@@ -5,6 +5,34 @@ def _opencl_encrypt_kernel_impl(repository_ctx):
       "BUILD",
       Label("//repository/opencl-kernel:BUILD.tpl"))
 
+  unused_var = repository_ctx.path(Label("//:.git/HEAD"))
+  unused_var = repository_ctx.path(Label("//:.git/refs/heads/master"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/activation.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/addn.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/batch_norm.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/bias_add.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/buffer_to_image.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/channel_shuffle.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/common.h"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/concat.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/conv_2d.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/conv_2d_1x1.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/conv_2d_3x3.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/deconv_2d.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/depth_to_space.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/depthwise_conv2d.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/eltwise.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/fully_connected.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/matmul.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/pad.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/pooling.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/reduce_mean.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/resize_bilinear.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/slice.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/softmax.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/space_to_batch.cl"))
+  unused_var = repository_ctx.path(Label("//:mace/kernels/opencl/cl/winograd_transform.cl"))
+
   mace_root_path = str(repository_ctx.path(Label("@mace//:BUILD")))[:-len("BUILD")]
 
   generated_files_path = repository_ctx.path("gen")
@@ -20,5 +48,4 @@ def _opencl_encrypt_kernel_impl(repository_ctx):
 
 encrypt_opencl_kernel_repository = repository_rule(
     implementation = _opencl_encrypt_kernel_impl,
-    local=True,
 )