Add a workflow to execute yamllint on the pipeline files.

.github/workflows/yamllint.yml

@@ -0,0 +1,48 @@
+# yamllint disable rule:line-length rule:document-start rule:truthy
+name: PR yamllint check
+on: pull_request
+
+# This action only need a single permission in order to autoformat the code.
+permissions:
+ contents: read
+
+jobs:
+ rebase:
+ name: yamllint check
+ runs-on: ubuntu-latest
+
+ steps:
+ - name: 'Checkout'
+ uses: actions/checkout@v3
+ with:
+ token: ${{ secrets.GITHUB_TOKEN }}
+ fetch-depth: 0 # otherwise, you will fail to push refs to dest repo
+
+ - name: Install yamllint
+ run: pip install yamllint
+
+ - name: Lint YAML pipeline files
+ id: lint-pipeline
+ working-directory: ./eng/pipelines
+ run: |
+ RESULT=$(yamllint ./eng/pipelines --f github)
+ if [ -n "$RESULT" ]; then
+ echo "YAML Lint found issues"
+ echo "$RESULT"
+ echo "::set-output name=result::$RESULT"
+ exit 1
+ fi
+
+ # only post a comment if the linting fails
+ - name: Post comment
+ uses: unsplash/[email protected]
+ if: failure()
+ env:
+ GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+ with:
+ msg: |
+ [yaml-lint] YamlLint found issues in the pipeline files.
+ ${{ steps.lint-pipeline.outputs.result }}
+ check_for_duplicate_msg: true
+ delete_prev_regex_msg: "YamlLint found issues in the pipeline files."
+ duplicate_msg_pattern: "YamlLint found issues in the pipeline files."