name: CI
on: [push]

jobs:
  build:
    # The label only schedules the job on the (Docker-backend) runner; the steps
    # actually run inside the Gentoo container declared below.
    runs-on: ubuntu-latest
    container:
      image: gentoo/stage3:amd64-openrc
    steps:
      # Bootstrap a portage tree (emerge-webrsync ships its own downloader).
      - name: Sync ::gentoo
        run: emerge-webrsync

      # pkgcore (pkgcheck) only reads /etc/portage/repos.conf, and the binhost
      # needs the Gentoo release keys we don't ship — disable binpkg signature
      # verification (ephemeral CI container) so prebuilt deps like dev-lang/go
      # can be pulled instead of compiled.
      - name: Configure portage
        run: |
          mkdir -p /etc/portage/repos.conf
          printf '[DEFAULT]\nmain-repo = gentoo\n\n[gentoo]\nlocation = /var/db/repos/gentoo\n' \
            > /etc/portage/repos.conf/gentoo.conf
          sed -i '/^verify-signature/d' /etc/portage/binrepos.conf/gentoo.conf
          printf '\nverify-signature = false\n' >> /etc/portage/binrepos.conf/gentoo.conf
          emerge -q --getbinpkg net-misc/curl dev-util/pkgcheck

      # Place this overlay at /var/db/repos/azy5030. actions/checkout is avoided
      # (SHA-256 Gitea repos break it); curl + tar fetches the source archive.
      - name: Check out overlay
        env:
          TOKEN: ${{ github.token }}
        run: |
          host=${GITHUB_SERVER_URL#http://}; host=${host#https://}
          url="http://x-access-token:${TOKEN}@${host}/${GITHUB_REPOSITORY}/archive/${GITHUB_REF_NAME}.tar.gz"
          curl -fsSL "$url" -o repo.tar.gz
          mkdir -p /var/db/repos/azy5030
          tar xzf repo.tar.gz -C /var/db/repos/azy5030 --strip-components=1
          printf '[azy5030]\nlocation = /var/db/repos/azy5030\nmasters = gentoo\nauto-sync = false\n' \
            > /etc/portage/repos.conf/azy5030.conf
          mkdir -p /etc/portage/package.accept_keywords
          echo 'dev-util/gitea-runner ~amd64' > /etc/portage/package.accept_keywords/gitea-runner

      - name: QA scan
        run: pkgcheck scan --repo /var/db/repos/azy5030 dev-util/gitea-runner

      # Full source build: portage fetches the upstream source tarball and the
      # vendor tarball (release asset), verifies them against the committed
      # Manifest, then compiles offline from the vendored modules.
      - name: Emerge gitea-runner
        run: emerge -v --getbinpkg dev-util/gitea-runner

      - name: Verify binary
        run: |
          ver=$(find /var/db/repos/azy5030/dev-util/gitea-runner -name 'gitea-runner-*.ebuild' \
            | sed -E 's#.*/gitea-runner-(.*)\.ebuild#\1#' | sort -V | tail -1)
          gitea-runner --version
          gitea-runner --version | grep -q "v${ver}"