From 315a5e5355769db1423ab5620d2929e1fb1b0ca4 Mon Sep 17 00:00:00 2001
From: David Anderson <dave@natulte.net>
Date: Tue, 17 Mar 2020 21:28:47 -0700
Subject: [PATCH] scripts: add a license header checker.
Signed-off-by: David Anderson <dave@natulte.net>
---
atomicfile/atomicfile.go | 2 +-
net/nettest/pipe_test.go | 4 +++
scripts/check_license_headers.sh | 54 ++++++++++++++++++++++++++++++++
wgengine/magicsock/magicsock.go | 2 +-
4 files changed, 60 insertions(+), 2 deletions(-)
create mode 100755 scripts/check_license_headers.sh
diff --git a/atomicfile/atomicfile.go b/atomicfile/atomicfile.go
index dcf3c3235..f2af37182 100644
--- a/atomicfile/atomicfile.go
+++ b/atomicfile/atomicfile.go
@@ -1,4 +1,4 @@
-// Copyright 2019 Tailscale & AUTHORS. All rights reserved.
+// Copyright (c) 2019 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.
diff --git a/net/nettest/pipe_test.go b/net/nettest/pipe_test.go
index f40d27c53..72a839d13 100644
--- a/net/nettest/pipe_test.go
+++ b/net/nettest/pipe_test.go
@@ -1,3 +1,7 @@
+// 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.
+
package nettest
import (
diff --git a/scripts/check_license_headers.sh b/scripts/check_license_headers.sh
new file mode 100755
index 000000000..29bb2eee5
--- /dev/null
+++ b/scripts/check_license_headers.sh
@@ -0,0 +1,54 @@
+#!/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=$1
+
+ for year in `seq 2019 2020`; do
+ want=$(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'); do
+ case $file in
+ $1/tempfork/*)
+ # Skip, tempfork of third-party code
+ ;;
+ $1/wgengine/ifconfig_windows.go)
+ # WireGuard copyright.
+ ;;
+ *)
+ header="$(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
diff --git a/wgengine/magicsock/magicsock.go b/wgengine/magicsock/magicsock.go
index e8a2039c7..8e55e5b91 100644
--- a/wgengine/magicsock/magicsock.go
+++ b/wgengine/magicsock/magicsock.go
@@ -1,4 +1,4 @@
-// Copyright 2019 Tailscale & AUTHORS. All rights reserved.
+// Copyright (c) 2019 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.