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#!/bin/sh
#
# Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
#
# check_license_headers.sh checks that all Go files in the given
# directory tree have a correct-looking Tailscale license header.
check_file() {
got=$1
for year in `seq 2019 2021`; do
want=$(cat <<EOF
// Copyright (c) $year Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
EOF
)
if [ "$got" = "$want" ]; then
return 0
fi
done
return 1
}
if [ $# != 1 ]; then
echo "Usage: $0 rootdir" >&2
exit 1
fi
fail=0
for file in $(find $1 -name '*.go' -not -path '*/.git/*'); do
case $file in
$1/tempfork/*)
# Skip, tempfork of third-party code
;;
$1/wgengine/router/ifconfig_windows.go)
# WireGuard copyright.
;;
*)
header="$(head -3 $file)"
if ! check_file "$header"; then
fail=1
echo "${file#$1/} doesn't have the right copyright header:"
echo "$header" | sed -e 's/^/ /g'
fi
;;
esac
done
if [ $fail -ne 0 ]; then
exit 1
fi
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