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#!/bin/bash
# Copyright The containerd 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.
# Copied from https://github.com/containerd/nerdctl/blob/v1.1.0/hack/verify-no-patent.sh
# Modified for stargz snapshotter project
CONTEXT="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )/"
REPO="${CONTEXT}../../"
echo "Verifying that the patented NewARC() is NOT compiled in (https://github.com/hashicorp/golang-lru/blob/v0.5.4/arc.go#L15)"
set -eux -o pipefail
# Clear GO_BUILD_LDFLAGS to embed the symbols
(cd $REPO && GO_BUILD_LDFLAGS="" make)
for O in containerd-stargz-grpc ctr-remote stargz-store ; do
go tool nm ${REPO}/out/$O >${REPO}/out/$O.sym
if ! grep -w -F main.main ${REPO}/out/$O.sym; then
echo >&2 "ERROR: the symbol file seems corrupted"
exit 1
fi
if grep -w NewARC ${REPO}/out/$O.sym; then
echo >&2 "ERROR: patented NewARC() might be compiled in?"
exit 1
fi
done
echo "OK"
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