build: add license-checker

.github/licenserc.yml

@@ -0,0 +1,49 @@
+# Copyright The Ratify 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.
+
+header:
+  license:
+    spdx-id: Apache-2.0
+    content: |
+      Copyright The Ratify 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.
+
+  paths-ignore:
+    - "**/*.{md,svg,yaml,crt,json,pub,yml,pb.go}"
+    - "CODEOWNERS"
+    - "PROJECT"
+    - "NOTICE"
+    - "LICENSE"
+    - "MAINTAINERS"
+    - "go.mod"
+    - "go.sum"
+    - "**/testdata/**"
+    - "charts/**/*"
+    - ".gitignore"
+    - ".devcontainer/gatekeeper.http"
+
+  comment: on-failure
+
+dependency:
+  files:
+    - go.mod

.github/workflows/build-pr.yml

@@ -16,6 +16,30 @@ on:
 permissions: read-all
 
 jobs:
+  check-license:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
+      - name: Check license header
+        uses: apache/skywalking-eyes/header@a790ab8dd23a7f861c18bd6aaa9b012e3a234bce
+        with:
+          mode: fix
+          config: .github/licenserc.yml
+      - name: Apply Changes
+        uses: EndBug/add-and-commit@1b561d405c831fe92ec472a6e81647f958824c88
+        env: 
+          GITHUB_TOKEN: $${{ secrets.GITHUB_TOKEN }}
+        with:
+          author_name: License Bot
+          author_email: [email protected]
+          message: 'Automatic application of license header'
+      - name: Check dependencies license
+        uses: apache/skywalking-eyes/dependency@a790ab8dd23a7f861c18bd6aaa9b012e3a234bce
+        with:
+          config: .github/licenserc.yml
+          flags:
+            --weak-compatible=true
   build:
     runs-on: ubuntu-latest
     steps:

Makefile

@@ -1,3 +1,16 @@
+# Copyright The Ratify 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.
+
 BINARY_NAME		= ratify
 INSTALL_DIR		= ~/.ratify
 CERT_DIR        = ${GITHUB_WORKSPACE}/tls/certs