[Backport 7.x] License header checker

.github/check-license-headers.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+# Licensed to Elasticsearch B.V. under one or more agreements.
+# Elasticsearch B.V. licenses this file to you under the Apache 2.0 License.
+# See the LICENSE file in the project root for more information.
+
+# Check that source code files in this repo have the appropriate license
+# header.
+
+if [ "$TRACE" != "" ]; then
+    export PS4='${BASH_SOURCE}:${LINENO}: ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
+    set -o xtrace
+fi
+set -o errexit
+set -o pipefail
+
+TOP=$(cd "$(dirname "$0")/.." >/dev/null && pwd)
+NLINES=$(wc -l .github/license-header.txt | awk '{print $1}')
+
+function check_license_header {
+    local f
+    f=$1
+    if ! diff .github/license-header.txt <(head -$NLINES "$f") >/dev/null; then
+        echo "check-license-headers: error: '$f' does not have required license header, see 'diff -u .github/license-header.txt <(head -$NLINES $f)'"
+        return 1
+    else
+        return 0
+    fi
+}
+
+
+cd "$TOP"
+nErrors=0
+for f in $(git ls-files | grep '\.go$'); do
+    if ! check_license_header $f; then
+        nErrors=$((nErrors+1))
+    fi
+done
+
+if [[ $nErrors -eq 0 ]]; then
+    exit 0
+else
+    exit 1
+fi

.github/license-header.txt

@@ -0,0 +1,16 @@
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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.

.github/workflows/license.yml

@@ -0,0 +1,15 @@
+name: License headers
+
+on: [ pull_request ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Check license headers
+        run: |
+          ./.github/check-license-headers.sh

_examples/bulk/benchmarks/benchmarks.go

@@ -1,6 +1,19 @@
-// Licensed to Elasticsearch B.V. under one or more agreements.
-// Elasticsearch B.V. licenses this file to you under the Apache 2.0 License.
-// See the LICENSE file in the project root for more information.
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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.
 
 // +build ignore
 

_examples/bulk/benchmarks/model/model.go

@@ -1,6 +1,19 @@
-// Licensed to Elasticsearch B.V. under one or more agreements.
-// Elasticsearch B.V. licenses this file to you under the Apache 2.0 License.
-// See the LICENSE file in the project root for more information.
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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.
 
 //go:generate easyjson $GOFILE
 

_examples/bulk/benchmarks/runner/runner.go

@@ -1,6 +1,19 @@
-// Licensed to Elasticsearch B.V. under one or more agreements.
-// Elasticsearch B.V. licenses this file to you under the Apache 2.0 License.
-// See the LICENSE file in the project root for more information.
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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.
 
 package runner
 

_examples/bulk/default.go

@@ -1,6 +1,19 @@
-// Licensed to Elasticsearch B.V. under one or more agreements.
-// Elasticsearch B.V. licenses this file to you under the Apache 2.0 License.
-// See the LICENSE file in the project root for more information.
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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.
 
 // +build ignore
 

_examples/bulk/indexer.go

@@ -1,6 +1,19 @@
-// Licensed to Elasticsearch B.V. under one or more agreements.
-// Elasticsearch B.V. licenses this file to you under the Apache 2.0 License.
-// See the LICENSE file in the project root for more information.
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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.
 
 // +build ignore
 

_examples/bulk/kafka/consumer/consumer.go

@@ -1,6 +1,19 @@
-// Licensed to Elasticsearch B.V. under one or more agreements.
-// Elasticsearch B.V. licenses this file to you under the Apache 2.0 License.
-// See the LICENSE file in the project root for more information.
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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.
 
 package consumer
 

_examples/bulk/kafka/kafka.go

@@ -1,6 +1,19 @@
-// Licensed to Elasticsearch B.V. under one or more agreements.
-// Elasticsearch B.V. licenses this file to you under the Apache 2.0 License.
-// See the LICENSE file in the project root for more information.
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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.
 
 // +build ignore
 

_examples/bulk/kafka/producer/producer.go

@@ -1,6 +1,19 @@
-// Licensed to Elasticsearch B.V. under one or more agreements.
-// Elasticsearch B.V. licenses this file to you under the Apache 2.0 License.
-// See the LICENSE file in the project root for more information.
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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.
 
 package producer
 

_examples/cloudfunction/function.go

@@ -1,6 +1,19 @@
-// Licensed to Elasticsearch B.V. under one or more agreements.
-// Elasticsearch B.V. licenses this file to you under the Apache 2.0 License.
-// See the LICENSE file in the project root for more information.
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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.
 
 // Package clusterstatus demonstrates using the Elasticsearch client for Go with Google Cloud Functions.
 //

_examples/cloudfunction/function_test.go

@@ -1,6 +1,19 @@
-// Licensed to Elasticsearch B.V. under one or more agreements.
-// Elasticsearch B.V. licenses this file to you under the Apache 2.0 License.
-// See the LICENSE file in the project root for more information.
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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.
 
 package clusterstatus_test
 

_examples/configuration.go

@@ -1,6 +1,19 @@
-// Licensed to Elasticsearch B.V. under one or more agreements.
-// Elasticsearch B.V. licenses this file to you under the Apache 2.0 License.
-// See the LICENSE file in the project root for more information.
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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.
 
 // +build ignore
 

_examples/customization.go

@@ -1,6 +1,19 @@
-// Licensed to Elasticsearch B.V. under one or more agreements.
-// Elasticsearch B.V. licenses this file to you under the Apache 2.0 License.
-// See the LICENSE file in the project root for more information.
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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.
 
 // +build ignore
 

_examples/encoding/benchmark_test.go

@@ -1,6 +1,19 @@
-// Licensed to Elasticsearch B.V. under one or more agreements.
-// Elasticsearch B.V. licenses this file to you under the Apache 2.0 License.
-// See the LICENSE file in the project root for more information.
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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.
 
 package main_test