foundation/.forgejo/workflows/ecosystem-selftest.yml

# ecosystem-selftest — proves the foundation's ecosystem-CI capabilities on its own
# runner (documentation/999_testing.md), without depending on external candidate
# repos. Three self-contained jobs, each asserting an acceptance criterion:
#   - semantic-release: the bump sequence 1.0.0→1.1.0→1.1.1→2.0.0→3.0.0
#   - eslint-gate:      an eslint error makes the job exit non-zero
#   - yamllint-gate:    a yamllint error makes the job exit non-zero
# Build-shape coverage (npm/bun/docker) is exercised by the reusable-* workflows
# against the real candidate repos; this file guards the capabilities that need no
# external repo. Runs in the baked foundation-ci image.
name: ecosystem-selftest
on:
  push:
    paths:
      - "ci/**"
      - ".forgejo/workflows/ecosystem-selftest.yml"
      - "actions/**"
  workflow_dispatch:

jobs:
  semantic-release-bumptest:
    runs-on: docker
    container:
      image: foundation-ci:latest
    steps:
      - uses: actions/checkout@v4
      - name: semantic-release bump sequence
        run: ./ci/semantic-release-bumptest.sh

  eslint-gate:
    runs-on: docker
    container:
      image: foundation-ci:latest
    steps:
      - uses: actions/checkout@v4
      - name: an eslint error must fail the job (exit non-zero)
        run: |
          set -e
          d=$(mktemp -d); cd "$d"
          # flat config (eslint 9) with no-unused-vars as an error
          cat > eslint.config.mjs <<'EOF'
          export default [{ rules: { "no-unused-vars": "error" } }];
          EOF
          printf 'const x = 1;\n' > bad.js   # x is unused → error
          if eslint bad.js; then
            echo "BUG: eslint passed on a file with an error"; exit 1
          else
            echo "OK: eslint exited non-zero on the lint error"
          fi

  yamllint-gate:
    runs-on: docker
    container:
      image: foundation-ci:latest
    steps:
      - uses: actions/checkout@v4
      - name: a yamllint error must fail the job (exit non-zero)
        run: |
          set -e
          d=$(mktemp -d); cd "$d"
          # duplicate key + bad indentation → yamllint error
          printf 'a: 1\na: 2\n' > bad.yaml
          if yamllint -d '{extends: default, rules: {document-start: disable}}' bad.yaml; then
            echo "BUG: yamllint passed on a file with a duplicate key"; exit 1
          else
            echo "OK: yamllint exited non-zero on the lint error"
          fi