Add vendored dependencies & cleanup script

third_party/tint/tools/lint

@@ -0,0 +1,41 @@
+#!/bin/bash
+# Copyright 2020 The Tint Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
+ROOT_DIR="$( cd "${SCRIPT_DIR}/.." >/dev/null 2>&1 && pwd )"
+
+set -e  # fail on error
+
+if ! command -v cpplint.py &> /dev/null; then
+    echo "cpplint.py not found on PATH"
+    exit 1
+fi
+
+FILTER="-runtime/references"
+FILES="`find src -type f` `find samples -type f`"
+FILES+="`find tools/src -type f` `find samples -type f`"
+
+if command -v go &> /dev/null; then
+    # Go is installed. Run cpplint in parallel for speed wins
+    go run $SCRIPT_DIR/src/cmd/run-parallel/main.go \
+         --only-print-failures                      \
+         cpplint.py                                 \
+         --root=$ROOT_DIR                           \
+         --filter="$FILTER"                         \
+         $ -- $FILES
+else
+    cpplint.py --root=$ROOT_DIR --filter="$FILTER" $FILES
+fi
+