ci: add a job to check commit message

  script:

    - for file in Dockerfile Dockerfile.jekyll Dockerfile.nginx; do echo "Linting $file"; hadolint "$file"; done

lint:commit_message:

  stage: lint

  image: node:18

  before_script:

    - npm install --location=global @commitlint/cli @commitlint/config-conventional

    - |

      cat > commitlint.config.js <<'JS'

      module.exports = {

        extends: ['@commitlint/config-conventional']

      };

      JS

    - git fetch --unshallow || true

    - git fetch origin $CI_DEFAULT_BRANCH

  script:

    - |

      COMMITS=$(git rev-list origin/$CI_DEFAULT_BRANCH..HEAD)

      echo "$COMMITS" | while read commit; do

        echo "Linting commit $commit"

        git show --no-patch --format=%B $commit | commitlint || exit 1

      done

# Build stage

.build:docker:

  stage: build