feat: modular workflow rules

      description: npm [publish](https://docs.npmjs.com/cli/v8/commands/npm-publish) extra arguments - yarn [publish](https://classic.yarnpkg.com/lang/en/docs/cli/publish/) extra arguments - pnpm [publish](https://pnpm.io/cli/publish) extra arguments

      default: ''

---

workflow:

  rules:

# default workflow rules: Merge Request pipelines

.tbc-workflow-rules:

  # prevent MR pipeline originating from production or integration branch(es)

  skip-back-merge:

    - if: '$CI_MERGE_REQUEST_SOURCE_BRANCH_NAME =~ $PROD_REF || $CI_MERGE_REQUEST_SOURCE_BRANCH_NAME =~ $INTEG_REF'

      when: never

  # on non-prod, non-integration branches: prefer MR pipeline over branch pipeline

  # ⚠️ can't be used with next rule

  prefer-mr-pipeline:

    - if: '$CI_COMMIT_BRANCH && $CI_OPEN_MERGE_REQUESTS && $CI_COMMIT_REF_NAME !~ $PROD_REF && $CI_COMMIT_REF_NAME !~ $INTEG_REF'

      when: never

  # prefer branch pipeline over MR pipeline

  # ⚠️ can't be used with previous rule

  prefer-branch-pipeline:

    - if: $CI_MERGE_REQUEST_ID

      when: never

  # extended "[skip ci]" behavior

  extended-skip-ci:

    - if: '$CI_COMMIT_MESSAGE =~ "/\[(ci skip|skip ci) on ([^],]*,)*tag(,[^],]*)*\]/" && $CI_COMMIT_TAG'

      when: never

    - if: '$CI_COMMIT_MESSAGE =~ "/\[(ci skip|skip ci) on ([^],]*,)*branch(,[^],]*)*\]/" && $CI_COMMIT_BRANCH'

      when: never

    - if: '$CI_COMMIT_MESSAGE =~ "/\[(ci skip|skip ci) on ([^],]*,)*dev(,[^],]*)*\]/" && $CI_COMMIT_REF_NAME !~ $PROD_REF && $CI_COMMIT_REF_NAME !~ $INTEG_REF'

      when: never

  # TBC default rules (MR workflow policy)

  default:

    - !reference [.tbc-workflow-rules, skip-back-merge]

    - !reference [.tbc-workflow-rules, prefer-mr-pipeline]

    - !reference [.tbc-workflow-rules, extended-skip-ci]

workflow:

  rules:

    - !reference [.tbc-workflow-rules, default]

    - when: always

# test job prototype: implement adaptive pipeline rules