add license header check v2

license-header-check-v2/action.yml

@@ -0,0 +1,95 @@
+# Copyright (c) 2024-2025, NVIDIA CORPORATION.
+#
+# 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.
+
+name: 'License Header Check V2'
+description: 'check license/copyright header v2'
+inputs:
+  included_file_patterns:
+    description: "included file pattern"
+    required: true
+    type: string
+  excluded_file_patterns:
+    description: "excluded file pattern"
+    required: false
+    type: string
+
+runs:
+  using: "composite"
+  steps:
+    - name: Get changed files
+      shell: bash
+      run: |
+        set -e
+
+        # Get license pattern with year
+        CURRENT_YEAR=$(date +%Y)
+        LICENSE_PATTERN="Copyright \(c\) .*?${CURRENT_YEAR},? NVIDIA CORPORATION."
+
+        # Format file patterns
+        IFS="," read -r -a INCLUDE_PATTERNS <<< "$(echo "${{ inputs.included_file_patterns }}" | tr -d ' ' | tr -d '\n')"
+        IFS="," read -r -a EXCLUDE_PATTERNS <<< "$(echo "${{ inputs.excluded_file_patterns }}" | tr -d ' ' | tr -d '\n')"
+        echo "Included file patterns: ${INCLUDE_PATTERNS[@]}"
+        echo "Excluded file patterns: ${EXCLUDE_PATTERNS[@]}"
+
+        # Get changed files
+        BASE_REF=$(git --no-pager log --oneline -1 | awk '{ print $NF }')
+        echo "Base REF: ${BASE_REF}"
+        FILES=$(git diff --name-only --diff-filter=AM ${BASE_REF} HEAD) || (echo "Your base commit ID is too old, please try upmerge first." && exit 1)
+        RENAME_FILES=$(git diff --name-status ${BASE_REF} HEAD | grep "^R" | grep -v "R100" | awk '{print $3}' || echo "")
+        echo "${RENAME_FILES[@]}"
+        FILES=($FILES $RENAME_FILES)
+        echo "Files to be detected: ${FILES[@]}"
+
+        # Check license header
+        NO_LICENSE_FILES=""
+        for FILE in "${FILES[@]}"; do
+          INCLUDE=false
+          for INCLUDE_PATTERN in "${INCLUDE_PATTERNS[@]}"; do
+            if [[ $FILE == $INCLUDE_PATTERN ]]; then
+              INCLUDE=true
+              break
+            fi
+          done
+          EXCLUDE=false
+          for EXCLUDE_PATTERN in "${EXCLUDE_PATTERNS[@]}"; do
+            if [[ $FILE == $EXCLUDE_PATTERN ]]; then
+              EXCLUDE=true
+              break
+            fi
+          done
+          if [[ $INCLUDE == true && $EXCLUDE == false ]]; then
+            echo "Checking $FILE"
+            if !(grep -Eiq "$LICENSE_PATTERN" "$FILE"); then
+              NO_LICENSE_FILES+="$FILE "
+            fi
+          fi
+        done
+
+        # Output result
+        echo "--------- RESULT ---------"
+        ERROR_MESSAGE="If the feature branch is not based on the latest target branch, \
+        git diff may include unexpected files marked as modified in the check that are not from the feature branch. \
+        This is because it tries to find a common commit between the two branches \
+        and can get confused if it is too old and there are lots of changes. \
+        If this happens please UPMERGE your PR to the latest development branch."
+        if [ ! -z "$NO_LICENSE_FILES" ]; then
+          echo "Following files missed copyright/license header or expired:"
+          echo $NO_LICENSE_FILES | tr ' ' '\n'
+          echo "--------- NOTICE ---------"
+          echo "${ERROR_MESSAGE}"
+          exit 1
+        else
+          echo "All files passed the check"
+          exit 0
+        fi