Enforce backport label #42
Workflow file for this run
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| name: Check | |
| on: | |
| pull_request: | |
| branches: | |
| - main | |
| types: [labeled, unlabeled, opened, reopened, synchronize] | |
| permissions: | |
| pull-requests: "read" | |
| jobs: | |
| check-backport-label: | |
| name: backport label | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: "Check backport label" | |
| env: | |
| GH_TOKEN: ${{ github.token }} | |
| run: | | |
| json_pr_labels='${{ toJSON(github.event.pull_request.labels) }}' | |
| readarray -t pr_labels < <(echo "${json_pr_labels}" | jq -r -c '.[].name') | |
| json_all_labels="$(gh label list --repo ${{ github.repository }} --json name --search "backport" --limit 1000)" | |
| readarray -t all_labels < <(echo "${json_all_labels}" | jq -r -c '.[].name') | |
| all_backport_labels=() | |
| all_floating_majors=() | |
| backport_regex="^backport ([0-9])+\.([0-9]+|x)$" | |
| echo "::group::Available Labels" | |
| for label in "${all_labels[@]}"; do | |
| if [ "${label}" = "skip-backport" ]; then | |
| all_backport_labels+=("${label}") | |
| echo "${label}" | |
| continue | |
| fi | |
| if [[ "${label}" =~ ${backport_regex} ]]; then | |
| major="${BASH_REMATCH[1]}" | |
| minor="${BASH_REMATCH[2]}" | |
| all_backport_labels+=("${label}") | |
| echo "${label}" | |
| if [ "${minor}" = "x" ]; then | |
| all_floating_majors+=("${major}") | |
| fi | |
| fi | |
| done | |
| echo "::endgroup::" | |
| has_exact_backport_label=false | |
| pr_majors=() | |
| pr_floating_majors=() | |
| echo "::group::Detected Labels" | |
| for pr_label in "${pr_labels[@]}"; do | |
| for backport_label in "${all_backport_labels[@]}"; do | |
| if [ "${pr_label}" = "${backport_label}" ]; then | |
| if [[ "${pr_label}" =~ ${backport_regex} ]]; then | |
| major="${BASH_REMATCH[1]}" | |
| minor="${BASH_REMATCH[2]}" | |
| if [ "${minor}" != "x" ]; then | |
| pr_majors+=("${major}") | |
| has_exact_backport_label=true | |
| else | |
| pr_floating_majors+=("${major}") | |
| fi | |
| else | |
| # Matches 'skip-backport' | |
| has_exact_backport_label=true | |
| fi | |
| echo "${pr_label}" | |
| fi | |
| done | |
| done | |
| echo "::endgroup::" | |
| if [ "${has_exact_backport_label}" != true ]; then | |
| echo "::error::No exact backport label found. Please add at least one of the"\ | |
| "'backport {major}.{minor}' labels or use 'skip-backport',"\ | |
| "if this PR should not be backported." | |
| exit 1 | |
| fi | |
| # Validate that a floating backport label exists for each exact backport label major | |
| # version. | |
| has_floating_backport_labels=true | |
| for pr_major in "${pr_majors[@]}"; do | |
| exists_floating_major=false | |
| for floating_major in "${all_floating_majors[@]}"; do | |
| if [ "${pr_major}" -eq "${floating_major}" ]; then | |
| exists_floating_major=true | |
| break | |
| fi | |
| done | |
| if [ "${exists_floating_major}" = false ]; then | |
| continue | |
| fi | |
| has_floating_major=false | |
| for pr_floating_major in "${pr_floating_majors[@]}"; do | |
| if [ "${pr_major}" -eq "${pr_floating_major}" ]; then | |
| has_floating_major=true | |
| fi | |
| done | |
| if [ "${has_floating_major}" != true ]; then | |
| has_floating_backport_labels=false | |
| echo "::error::Missing floating backport label for '${pr_major}.x'" | |
| fi | |
| done | |
| if [ "${has_floating_backport_labels}" != true ]; then | |
| exit 1 | |
| fi | |
| # Validate that an exact backport label exists for each floating backport label major | |
| # version. | |
| has_exact_backports_labels=true | |
| for pr_floating_major in "${pr_floating_majors[@]}"; do | |
| exists_exact_major=false | |
| for pr_major in "${pr_majors[@]}"; do | |
| if [ "${pr_floating_major}" -eq "${pr_major}" ]; then | |
| has_exact_major=true | |
| fi | |
| done | |
| if [ "${has_exact_major}" != true ]; then | |
| has_exact_backport_labels=false | |
| echo "::error::Missing exact backport label for '${pr_floating_major}.x'" | |
| fi | |
| done | |
| if [ "${has_exact_backport_labels}" != true ]; then | |
| exit 1 | |
| fi | |