Ftr: add license check github action.

.github/workflows/licence-checker.yml

@@ -0,0 +1,45 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF 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.
+#
+
+name: License checker
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  pull_request_target:
+    branches:
+      - main
+
+jobs:
+  check-license:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Check License Header
+        uses: apache/skywalking-eyes@main
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          log: info
+          config: .licenserc.yaml

.licenserc.yaml

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+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF 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.
+#
+
+header: # `header` section is configurations for source codes license header.
+  license:
+    spdx-id: Apache-2.0 # the spdx id of the license, it's convenient when your license is standard SPDX license.
+    copyright-owner: Apache Software Foundation # the copyright owner to replace the [owner] in the `spdx-id` template.
+    content: | # `license` will be used as the content when `fix` command needs to insert a license header.
+      Licensed to the Apache Software Foundation (ASF) under one or more
+      contributor license agreements.  See the NOTICE file distributed with
+      this work for additional information regarding copyright ownership.
+      The ASF 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.
+    # `pattern` is optional regexp if all the file headers are the same as `license` or the license of `spdx-id` and `copyright-owner`.
+    pattern: |
+      Licensed to the Apache Software Foundation under one or more contributor
+      license agreements. See the NOTICE file distributed with
+      this work for additional information regarding copyright
+      ownership. The Apache Software Foundation 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.
+  paths: # `paths` are the path list that will be checked (and fixed) by license-eye, default is ['**'].
+    - '**'
+
+  paths-ignore: # `paths-ignore` are the path list that will be ignored by license-eye.
+    - '**/*.md'
+    - '**/Cargo.toml'
+    - 'LICENSE'
+    - 'NOTICE'
+    - '.asf.yml'
+    - '.gitignore'
+    - '.github'
+  comment: on-failure # on what condition license-eye will comment on the pull request, `on-failure`, `always`, `never`.
+
+  # license-location-threshold specifies the index threshold where the license header can be located,
+  # after all, a "header" cannot be TOO far from the file start.
+  license-location-threshold: 80
+
+dependency:
+  files:
+    - Cargo.toml