name: Publish Docker Image

# Two-phase split-base build pipeline. Replaces the original
# docker-publish.yml single-Dockerfile pipeline.
#
# Pipeline shape:
#   1. base-decide      compute base hash from Dockerfile.base + rootfs/
#                       + entrypoints; probe Docker Hub for existing tag.
#   2. build-base       only if probe missed; multi-arch push of base-<hash>.
#   3. smoke-* (×4)     amd64-only build of each variant FROMing the base
#                       tag; runs scripts/smoke-test.sh.
#   4. build-variant-*  multi-arch push of each variant tag (the user-
#       (×4)            facing release tags, unchanged in shape).
#   5. promote-base-latest  re-tag base-<hash> → base-latest with `crane copy`
#                       (manifest copy, no rebuild).
#   6. update-description   patch Docker Hub description (unchanged).

on:
  push:
    tags:
      - 'v*'
  workflow_dispatch:
    inputs:
      release_tag:
        description: 'Release tag to publish (e.g. v1.14.50). Used only for workflow_dispatch runs — tag-triggered runs derive the tag from github.ref.'
        required: false
        default: ''
      promote_latest:
        description: 'Update latest/* aliases (default true for tag-push, set false for manual test runs)'
        required: false
        default: 'false'

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: false

env:
  BUILDKIT_PROGRESS: plain
  IMAGE: ${{ vars.DOCKERHUB_USERNAME }}/opencode-devbox
  RELEASE_TAG: ${{ github.ref_type == 'tag' && github.ref_name || inputs.release_tag }}
  PROMOTE_LATEST: ${{ github.ref_type == 'tag' && 'true' || inputs.promote_latest }}

# ───────────────────────────────────────────────────────────────────
# Reusable disk-reclaim snippet — strips catthehacker toolchains and
# stale docker state. Identical to the production workflow's pattern.
# ───────────────────────────────────────────────────────────────────

jobs:
  # ── Phase 1: decide whether base needs rebuilding ──────────────────
  base-decide:
    runs-on: ubuntu-latest
    container:
      image: catthehacker/ubuntu:act-latest
    outputs:
      base_tag: ${{ steps.compute.outputs.base_tag }}
      need_build: ${{ steps.probe.outputs.need_build }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Compute base tag from Dockerfile.base + dependencies
        id: compute
        run: |
          # Hash inputs that determine the base image's contents.
          # Order is fixed via `find -print0 | sort -z` for reproducibility.
          # Junk filters: __pycache__/*.pyc and macOS metadata (.DS_Store,
          # ._AppleDouble) are gitignored locally but still picked up by
          # `find rootfs -type f`, which would diverge the local hash from
          # CI's clean checkout. Exclude them defensively here.
          HASH=$(
            {
              cat Dockerfile.base
              find rootfs -type f \
                ! -path '*/__pycache__/*' \
                ! -name '*.pyc' \
                ! -name '.DS_Store' \
                ! -name '._*' \
                -print0 2>/dev/null | sort -z | xargs -0 cat 2>/dev/null
              cat entrypoint.sh entrypoint-user.sh
            } | sha256sum | cut -c1-12
          )
          BASE_TAG="base-${HASH}"
          echo "base_tag=${BASE_TAG}" >> "$GITHUB_OUTPUT"
          echo "Computed base tag: ${BASE_TAG}"

      - name: Force IPv4 for Docker Hub
        run: echo 'precedence ::ffff:0:0/96  100' >> /etc/gai.conf

      - name: Probe Docker Hub for existing base tag
        id: probe
        run: |
          set +e
          docker manifest inspect "${IMAGE}:${{ steps.compute.outputs.base_tag }}" \
            > /dev/null 2>&1
          PROBE_RC=$?
          set -e
          if [ "${PROBE_RC}" = "0" ]; then
            echo "need_build=false" >> "$GITHUB_OUTPUT"
            echo "Base tag ${IMAGE}:${{ steps.compute.outputs.base_tag }} exists — skipping rebuild."
          else
            echo "need_build=true" >> "$GITHUB_OUTPUT"
            echo "Base tag ${IMAGE}:${{ steps.compute.outputs.base_tag }} missing — will build."
          fi

  # ── Phase 1b: resolve floating npm versions (pi, omos) to concrete
  # versions so the variant build-args carry a different value when an
  # upstream package bumps. Without this, when PI_VERSION / OMOS_VERSION
  # default to 'latest', the docker/build-push-action build-arg string
  # is byte-identical across builds, so the resulting layer-hash is
  # identical, so the registry buildcache silently reuses the layer
  # from whatever pi/omos version was current when the cache was first
  # populated. Same class of bug as pi-devbox v0.74.0..v0.75.5 (fixed in
  # v0.75.5b 2026-05-23). Currently masked here because OPENCODE_VERSION
  # is hard-coded in Dockerfile.variant and bumps every release —
  # invalidating the parent-chain cache key for the pi/omos layers — but
  # that masking would fail the moment we cut a vN.N.Nb opencode-version-
  # unchanged release that only bumps pi or omos. Fix is preventative.
  resolve-versions:
    runs-on: ubuntu-latest
    container:
      image: catthehacker/ubuntu:act-latest
    outputs:
      pi_version: ${{ steps.resolve.outputs.pi_version }}
      omos_version: ${{ steps.resolve.outputs.omos_version }}
    steps:
      - name: Resolve pi + omos versions from npm registry
        id: resolve
        run: |
          set -eu
          # Query the npm registry directly via curl+jq rather than `npm view`.
          # catthehacker/ubuntu:act-latest ships Node/npm under /opt/acttoolcache/
          # and adds it to PATH only via /etc/environment — which act_runner never
          # sources (it reads the Docker image's ENV instructions, not /etc/environment).
          # curl and jq are both guaranteed present in every job in this workflow.
          PI_VERSION=$(curl -sf "https://registry.npmjs.org/@earendil-works%2Fpi-coding-agent/latest" | jq -r '.version')
          OMOS_VERSION=$(curl -sf "https://registry.npmjs.org/oh-my-opencode-slim/latest" | jq -r '.version')
          echo "pi_version=${PI_VERSION}"     >> "$GITHUB_OUTPUT"
          echo "omos_version=${OMOS_VERSION}" >> "$GITHUB_OUTPUT"
          echo "Resolved PI_VERSION=${PI_VERSION}, OMOS_VERSION=${OMOS_VERSION}"

  # ── Phase 2: build & push base (multi-arch), only when needed ──────
  build-base:
    needs: [base-decide]
    if: needs.base-decide.outputs.need_build == 'true'
    runs-on: ubuntu-latest
    container:
      image: catthehacker/ubuntu:act-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Force IPv4 for Docker Hub
        run: echo 'precedence ::ffff:0:0/96  100' >> /etc/gai.conf

      - name: Reclaim runner disk
        run: |
          set -x
          df -h / || true
          rm -rf \
            /opt/hostedtoolcache /opt/microsoft /opt/az /opt/ghc \
            /usr/local/.ghcup /usr/share/dotnet /usr/share/swift \
            /usr/local/lib/android /usr/local/share/powershell \
            /usr/local/share/chromium /usr/local/share/boost \
            /usr/lib/jvm 2>/dev/null || true
          apt-get clean || true
          rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* || true
          docker system prune -af --volumes || true
          docker builder prune -af || true
          df -h / || true

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
        with:
          platforms: arm64

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4.0.0
        with:
          driver-opts: network=host

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and push base (multi-arch)
        uses: docker/build-push-action@v7
        with:
          context: .
          file: Dockerfile.base
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ env.IMAGE }}:${{ needs.base-decide.outputs.base_tag }}
          # Registry cache for faster repeat base rebuilds (e.g. Node bump).
          cache-from: type=registry,ref=${{ env.IMAGE }}:base-buildcache
          cache-to: type=registry,ref=${{ env.IMAGE }}:base-buildcache,mode=max

  # ── Phase 3: amd64 smoke per variant (gates the multi-arch publish) ─
  # Each smoke job builds amd64-only against the base tag and runs
  # scripts/smoke-test.sh. base-decide.outputs.base_tag is always set;
  # build-base may have been skipped (cache hit) but the tag exists either way.

  smoke-base:
    needs: [base-decide, build-base]
    if: |
      always() &&
      needs.base-decide.result == 'success' &&
      (needs.build-base.result == 'success' || needs.build-base.result == 'skipped')
    runs-on: ubuntu-latest
    container:
      image: catthehacker/ubuntu:act-latest
    steps:
      - uses: actions/checkout@v4
      - name: Force IPv4 for Docker Hub
        run: echo 'precedence ::ffff:0:0/96  100' >> /etc/gai.conf
      - name: Reclaim runner disk
        run: |
          rm -rf /opt/hostedtoolcache /opt/microsoft /opt/az /opt/ghc \
            /usr/local/.ghcup /usr/share/dotnet /usr/share/swift \
            /usr/local/lib/android /usr/local/share/powershell \
            /usr/local/share/chromium /usr/local/share/boost \
            /usr/lib/jvm 2>/dev/null || true
          docker system prune -af --volumes || true
          docker builder prune -af || true
      - uses: docker/setup-buildx-action@v4.0.0
        with: {driver-opts: network=host}
      - uses: docker/login-action@v3
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Build amd64 variant for smoke
        uses: docker/build-push-action@v7
        with:
          context: .
          file: Dockerfile.variant
          platforms: linux/amd64
          push: false
          load: true
          tags: opencode-devbox:smoke-base
          build-args: |
            BASE_IMAGE=${{ env.IMAGE }}:${{ needs.base-decide.outputs.base_tag }}
            INSTALL_OPENCODE=true
            INSTALL_OMOS=false
            INSTALL_PI=false
      - name: Smoke test (amd64)
        run: bash scripts/smoke-test.sh opencode-devbox:smoke-base --variant base

  smoke-omos:
    needs: [base-decide, build-base, resolve-versions]
    if: |
      always() &&
      needs.base-decide.result == 'success' &&
      needs.resolve-versions.result == 'success' &&
      (needs.build-base.result == 'success' || needs.build-base.result == 'skipped')
    runs-on: ubuntu-latest
    container:
      image: catthehacker/ubuntu:act-latest
    steps:
      - uses: actions/checkout@v4
      - run: echo 'precedence ::ffff:0:0/96  100' >> /etc/gai.conf
      - run: |
          rm -rf /opt/hostedtoolcache /opt/microsoft /opt/az /opt/ghc \
            /usr/local/.ghcup /usr/share/dotnet /usr/share/swift \
            /usr/local/lib/android /usr/local/share/powershell \
            /usr/local/share/chromium /usr/local/share/boost \
            /usr/lib/jvm 2>/dev/null || true
          docker system prune -af --volumes || true
          docker builder prune -af || true
      - uses: docker/setup-buildx-action@v4.0.0
        with: {driver-opts: network=host}
      - uses: docker/login-action@v3
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - uses: docker/build-push-action@v7
        with:
          context: .
          file: Dockerfile.variant
          platforms: linux/amd64
          push: false
          load: true
          tags: opencode-devbox:smoke-omos
          build-args: |
            BASE_IMAGE=${{ env.IMAGE }}:${{ needs.base-decide.outputs.base_tag }}
            INSTALL_OPENCODE=true
            INSTALL_OMOS=true
            INSTALL_PI=false
            OMOS_VERSION=${{ needs.resolve-versions.outputs.omos_version }}
      - env:
          EXPECTED_OMOS_VERSION: ${{ needs.resolve-versions.outputs.omos_version }}
        run: bash scripts/smoke-test.sh opencode-devbox:smoke-omos --variant omos

  smoke-with-pi:
    needs: [base-decide, build-base, resolve-versions]
    if: |
      always() &&
      needs.base-decide.result == 'success' &&
      needs.resolve-versions.result == 'success' &&
      (needs.build-base.result == 'success' || needs.build-base.result == 'skipped')
    runs-on: ubuntu-latest
    container:
      image: catthehacker/ubuntu:act-latest
    steps:
      - uses: actions/checkout@v4
      - run: echo 'precedence ::ffff:0:0/96  100' >> /etc/gai.conf
      - run: |
          rm -rf /opt/hostedtoolcache /opt/microsoft /opt/az /opt/ghc \
            /usr/local/.ghcup /usr/share/dotnet /usr/share/swift \
            /usr/local/lib/android /usr/local/share/powershell \
            /usr/local/share/chromium /usr/local/share/boost \
            /usr/lib/jvm 2>/dev/null || true
          docker system prune -af --volumes || true
          docker builder prune -af || true
      - uses: docker/setup-buildx-action@v4.0.0
        with: {driver-opts: network=host}
      - uses: docker/login-action@v3
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - uses: docker/build-push-action@v7
        with:
          context: .
          file: Dockerfile.variant
          platforms: linux/amd64
          push: false
          load: true
          tags: opencode-devbox:smoke-with-pi
          build-args: |
            BASE_IMAGE=${{ env.IMAGE }}:${{ needs.base-decide.outputs.base_tag }}
            INSTALL_OPENCODE=true
            INSTALL_OMOS=false
            INSTALL_PI=true
            PI_VERSION=${{ needs.resolve-versions.outputs.pi_version }}
      - env:
          EXPECTED_PI_VERSION: ${{ needs.resolve-versions.outputs.pi_version }}
        run: bash scripts/smoke-test.sh opencode-devbox:smoke-with-pi --variant with-pi

  smoke-omos-with-pi:
    needs: [base-decide, build-base, resolve-versions]
    if: |
      always() &&
      needs.base-decide.result == 'success' &&
      needs.resolve-versions.result == 'success' &&
      (needs.build-base.result == 'success' || needs.build-base.result == 'skipped')
    runs-on: ubuntu-latest
    container:
      image: catthehacker/ubuntu:act-latest
    steps:
      - uses: actions/checkout@v4
      - run: echo 'precedence ::ffff:0:0/96  100' >> /etc/gai.conf
      - run: |
          rm -rf /opt/hostedtoolcache /opt/microsoft /opt/az /opt/ghc \
            /usr/local/.ghcup /usr/share/dotnet /usr/share/swift \
            /usr/local/lib/android /usr/local/share/powershell \
            /usr/local/share/chromium /usr/local/share/boost \
            /usr/lib/jvm 2>/dev/null || true
          docker system prune -af --volumes || true
          docker builder prune -af || true
      - uses: docker/setup-buildx-action@v4.0.0
        with: {driver-opts: network=host}
      - uses: docker/login-action@v3
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - uses: docker/build-push-action@v7
        with:
          context: .
          file: Dockerfile.variant
          platforms: linux/amd64
          push: false
          load: true
          tags: opencode-devbox:smoke-omos-with-pi
          build-args: |
            BASE_IMAGE=${{ env.IMAGE }}:${{ needs.base-decide.outputs.base_tag }}
            INSTALL_OPENCODE=true
            INSTALL_OMOS=true
            INSTALL_PI=true
            PI_VERSION=${{ needs.resolve-versions.outputs.pi_version }}
            OMOS_VERSION=${{ needs.resolve-versions.outputs.omos_version }}
      - env:
          EXPECTED_PI_VERSION: ${{ needs.resolve-versions.outputs.pi_version }}
          EXPECTED_OMOS_VERSION: ${{ needs.resolve-versions.outputs.omos_version }}
        run: bash scripts/smoke-test.sh opencode-devbox:smoke-omos-with-pi --variant omos-with-pi

  # ── Phase 4: multi-arch publish per variant ────────────────────────

  build-variant-base:
    needs: [base-decide, smoke-base]
    runs-on: ubuntu-latest
    container:
      image: catthehacker/ubuntu:act-latest
    steps:
      - uses: actions/checkout@v4
      - run: echo 'precedence ::ffff:0:0/96  100' >> /etc/gai.conf
      - run: |
          rm -rf /opt/hostedtoolcache /opt/microsoft /opt/az /opt/ghc \
            /usr/local/.ghcup /usr/share/dotnet /usr/share/swift \
            /usr/local/lib/android /usr/local/share/powershell \
            /usr/local/share/chromium /usr/local/share/boost \
            /usr/lib/jvm 2>/dev/null || true
          docker system prune -af --volumes || true
          docker builder prune -af || true
      - uses: docker/setup-qemu-action@v3
        with: {platforms: arm64}
      - uses: docker/setup-buildx-action@v4.0.0
        with: {driver-opts: network=host}
      - uses: docker/login-action@v3
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Compute version-specific tags
        id: tags
        run: |
          VERSION="${{ env.RELEASE_TAG }}"
          { echo "tags<<EOF"
            echo "${IMAGE}:${VERSION}"
            if [ "${{ env.PROMOTE_LATEST }}" = "true" ]; then
              echo "${IMAGE}:latest"
            fi
            echo "EOF"
          } >> "$GITHUB_OUTPUT"
      - uses: docker/build-push-action@v7
        with:
          context: .
          file: Dockerfile.variant
          platforms: linux/amd64,linux/arm64
          push: true
          build-args: |
            BASE_IMAGE=${{ env.IMAGE }}:${{ needs.base-decide.outputs.base_tag }}
            INSTALL_OPENCODE=true
            INSTALL_OMOS=false
            INSTALL_PI=false
          tags: ${{ steps.tags.outputs.tags }}

  build-variant-omos:
    needs: [base-decide, smoke-omos, resolve-versions]
    runs-on: ubuntu-latest
    container:
      image: catthehacker/ubuntu:act-latest
    steps:
      - uses: actions/checkout@v4
      - run: echo 'precedence ::ffff:0:0/96  100' >> /etc/gai.conf
      - run: |
          rm -rf /opt/hostedtoolcache /opt/microsoft /opt/az /opt/ghc \
            /usr/local/.ghcup /usr/share/dotnet /usr/share/swift \
            /usr/local/lib/android /usr/local/share/powershell \
            /usr/local/share/chromium /usr/local/share/boost \
            /usr/lib/jvm 2>/dev/null || true
          docker system prune -af --volumes || true
          docker builder prune -af || true
      - uses: docker/setup-qemu-action@v3
        with: {platforms: arm64}
      - uses: docker/setup-buildx-action@v4.0.0
        with: {driver-opts: network=host}
      - uses: docker/login-action@v3
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Compute version-specific tags
        id: tags
        run: |
          VERSION="${{ env.RELEASE_TAG }}"
          { echo "tags<<EOF"
            echo "${IMAGE}:${VERSION}-omos"
            if [ "${{ env.PROMOTE_LATEST }}" = "true" ]; then
              echo "${IMAGE}:latest-omos"
            fi
            echo "EOF"
          } >> "$GITHUB_OUTPUT"
      - uses: docker/build-push-action@v7
        with:
          context: .
          file: Dockerfile.variant
          platforms: linux/amd64,linux/arm64
          push: true
          build-args: |
            BASE_IMAGE=${{ env.IMAGE }}:${{ needs.base-decide.outputs.base_tag }}
            INSTALL_OPENCODE=true
            INSTALL_OMOS=true
            INSTALL_PI=false
            OMOS_VERSION=${{ needs.resolve-versions.outputs.omos_version }}
          tags: ${{ steps.tags.outputs.tags }}

  build-variant-with-pi:
    needs: [base-decide, smoke-with-pi, resolve-versions]
    runs-on: ubuntu-latest
    container:
      image: catthehacker/ubuntu:act-latest
    steps:
      - uses: actions/checkout@v4
      - run: echo 'precedence ::ffff:0:0/96  100' >> /etc/gai.conf
      - run: |
          rm -rf /opt/hostedtoolcache /opt/microsoft /opt/az /opt/ghc \
            /usr/local/.ghcup /usr/share/dotnet /usr/share/swift \
            /usr/local/lib/android /usr/local/share/powershell \
            /usr/local/share/chromium /usr/local/share/boost \
            /usr/lib/jvm 2>/dev/null || true
          docker system prune -af --volumes || true
          docker builder prune -af || true
      - uses: docker/setup-qemu-action@v3
        with: {platforms: arm64}
      - uses: docker/setup-buildx-action@v4.0.0
        with: {driver-opts: network=host}
      - uses: docker/login-action@v3
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Compute version-specific tags
        id: tags
        run: |
          VERSION="${{ env.RELEASE_TAG }}"
          { echo "tags<<EOF"
            echo "${IMAGE}:${VERSION}-with-pi"
            if [ "${{ env.PROMOTE_LATEST }}" = "true" ]; then
              echo "${IMAGE}:latest-with-pi"
            fi
            echo "EOF"
          } >> "$GITHUB_OUTPUT"
      - uses: docker/build-push-action@v7
        with:
          context: .
          file: Dockerfile.variant
          platforms: linux/amd64,linux/arm64
          push: true
          build-args: |
            BASE_IMAGE=${{ env.IMAGE }}:${{ needs.base-decide.outputs.base_tag }}
            INSTALL_OPENCODE=true
            INSTALL_OMOS=false
            INSTALL_PI=true
            PI_VERSION=${{ needs.resolve-versions.outputs.pi_version }}
          tags: ${{ steps.tags.outputs.tags }}

  build-variant-omos-with-pi:
    needs: [base-decide, smoke-omos-with-pi, resolve-versions]
    runs-on: ubuntu-latest
    container:
      image: catthehacker/ubuntu:act-latest
    steps:
      - uses: actions/checkout@v4
      - run: echo 'precedence ::ffff:0:0/96  100' >> /etc/gai.conf
      - run: |
          rm -rf /opt/hostedtoolcache /opt/microsoft /opt/az /opt/ghc \
            /usr/local/.ghcup /usr/share/dotnet /usr/share/swift \
            /usr/local/lib/android /usr/local/share/powershell \
            /usr/local/share/chromium /usr/local/share/boost \
            /usr/lib/jvm 2>/dev/null || true
          docker system prune -af --volumes || true
          docker builder prune -af || true
      - uses: docker/setup-qemu-action@v3
        with: {platforms: arm64}
      - uses: docker/setup-buildx-action@v4.0.0
        with: {driver-opts: network=host}
      - uses: docker/login-action@v3
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Compute version-specific tags
        id: tags
        run: |
          VERSION="${{ env.RELEASE_TAG }}"
          { echo "tags<<EOF"
            echo "${IMAGE}:${VERSION}-omos-with-pi"
            if [ "${{ env.PROMOTE_LATEST }}" = "true" ]; then
              echo "${IMAGE}:latest-omos-with-pi"
            fi
            echo "EOF"
          } >> "$GITHUB_OUTPUT"
      - uses: docker/build-push-action@v7
        with:
          context: .
          file: Dockerfile.variant
          platforms: linux/amd64,linux/arm64
          push: true
          build-args: |
            BASE_IMAGE=${{ env.IMAGE }}:${{ needs.base-decide.outputs.base_tag }}
            INSTALL_OPENCODE=true
            INSTALL_OMOS=true
            INSTALL_PI=true
            PI_VERSION=${{ needs.resolve-versions.outputs.pi_version }}
            OMOS_VERSION=${{ needs.resolve-versions.outputs.omos_version }}
          tags: ${{ steps.tags.outputs.tags }}

  # ── Phase 5: promote base-<hash> → base-latest (manifest copy only) ─
  promote-base-latest:
    needs:
      - base-decide
      - build-variant-base
      - build-variant-omos
      - build-variant-with-pi
      - build-variant-omos-with-pi
    # Skip on cache-hit base builds: when need_build=false, base-latest
    # already points at the same digest as base-<hash>, so the retag is
    # a tautology and any transient failure of it is purely cosmetic.
    # Manual workflow_dispatch with promote_latest=true overrides this
    # gate as an escape hatch (e.g., if base-latest got hand-deleted).
    #
    # `always()` wrapper + explicit base-variant success check protects
    # against the gitea-Actions default of "skipped need => skip dependent":
    # a partial-publish run (e.g., omos-with-pi smoke fails) shouldn't
    # prevent the base-latest alias from advancing on a real base rebuild.
    if: |
      always() &&
      needs.build-variant-base.result == 'success' &&
      (inputs.promote_latest == 'true' ||
       (github.ref_type == 'tag' && needs.base-decide.outputs.need_build == 'true'))
    runs-on: ubuntu-latest
    container:
      image: catthehacker/ubuntu:act-latest
    steps:
      # Direct pinned install instead of imjasonh/setup-crane@v0.4. The
      # action's bootstrap script calls api.github.com/.../releases/latest
      # to discover the crane version, which periodically rate-limits and
      # produces tag=null → download from .../download/null/... → 404 →
      # 'gzip: unexpected end of file' → exit 2. Pinning removes the
      # runtime dependency on GitHub API entirely. Bump CRANE_VERSION
      # deliberately when you want updates.
      - name: Install crane (pinned)
        env:
          CRANE_VERSION: v0.21.6
        run: |
          set -eux
          curl -fsSL "https://github.com/google/go-containerregistry/releases/download/${CRANE_VERSION}/go-containerregistry_Linux_x86_64.tar.gz" \
            | tar -xz -C /usr/local/bin crane
          crane version
      - name: Login (crane)
        run: |
          crane auth login docker.io \
            -u ${{ vars.DOCKERHUB_USERNAME }} \
            -p "${{ secrets.DOCKERHUB_TOKEN }}"
      - name: Re-tag base-<hash> as base-latest
        run: |
          crane copy \
            ${{ env.IMAGE }}:${{ needs.base-decide.outputs.base_tag }} \
            ${{ env.IMAGE }}:base-latest

  # ── Phase 6: update Hub description (only on real release runs) ────
  update-description:
    needs:
      - build-variant-base
      - build-variant-omos
      - build-variant-with-pi
      - build-variant-omos-with-pi
    # Run when at least the base variant published — don't let a single
    # variant failure (e.g., omos-with-pi smoke threshold) prevent Hub
    # description refresh for the other variants that did publish.
    # Without this `always()` wrapper, gitea Actions' default behavior
    # of "skipped need => skip dependent" cascades from any failed/
    # skipped build-variant-* into update-description, and the Hub
    # description goes stale on partial-publish releases.
    if: |
      always() &&
      needs.build-variant-base.result == 'success' &&
      (github.ref_type == 'tag' || inputs.promote_latest == 'true')
    runs-on: ubuntu-latest
    container:
      image: catthehacker/ubuntu:act-latest
    steps:
      - uses: actions/checkout@v4
      - name: Update Docker Hub description
        run: |
          TOKEN=$(curl -s -X POST https://hub.docker.com/v2/auth/token \
            -H "Content-Type: application/json" \
            -d '{"identifier":"${{ vars.DOCKERHUB_USERNAME }}","secret":"${{ secrets.DOCKERHUB_TOKEN }}"}' \
            | jq -r .access_token)
          if [ "$TOKEN" = "null" ] || [ -z "$TOKEN" ]; then
            echo "::error::Failed to authenticate with Docker Hub API"
            exit 1
          fi
          HTTP_CODE=$(jq -n \
            --rawfile full DOCKER_HUB.md \
            --arg short "Portable AI dev environment for opencode. Debian-based with git, Node.js, AWS CLI, and SSH support." \
            '{"full_description": $full, "description": $short}' | \
            curl -s -o /tmp/hub-response.txt -w "%{http_code}" -X PATCH \
              "https://hub.docker.com/v2/repositories/${{ vars.DOCKERHUB_USERNAME }}/opencode-devbox/" \
              -H "Authorization: Bearer $TOKEN" \
              -H "Content-Type: application/json" \
              -d @-)
          if [ "$HTTP_CODE" != "200" ]; then
            echo "Response body:"
            cat /tmp/hub-response.txt
            echo "::error::Docker Hub description update failed with HTTP $HTTP_CODE"
            exit 1
          fi