mcpp/.github/workflows/ci-upgrade.yml at main · mcpp-community/mcpp · GitHub

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name: ci-upgrade

# A home the previous release made keeps working under this commit's mcpp
# (design .agents/docs/2026-10-17-upgrade-continuity-design.md, D9).
#
# Every other lane starts from an empty MCPP_HOME, so the packaging revision a
# payload records always equals the index's, and an upgrade is never executed.
# 2026.10.16.3 replaced every payload of an older revision inside the user's
# next `mcpp run`, and on a home with one dangling record failed every run;
# nothing in CI could see it. Here the PREVIOUS RELEASE (the newest published
# one that is not this commit's version, read from GitHub at run time, so the
# lane moves forward with every release) builds the home, and this commit's
# binary, laid out as a release with the xlings it pins, runs in it.
# .github/tools/upgrade_lane.sh holds the steps and the assertions.
#
# Called by ci.yml after each host's build, with the binary build.yml produced
# (use-built-mcpp, rule R1 of the 2026-10-02 CI record).

on:
  workflow_call:

jobs:
  upgrade:
    name: upgrade from the previous release (${{ matrix.host }}, ${{ matrix.variant }})
    strategy:
      fail-fast: false
      matrix:
        include:
          - { host: linux-x86_64,   runs-on: ubuntu-24.04,     variant: plain }
          - { host: linux-x86_64,   runs-on: ubuntu-24.04,     variant: snapshot }
          - { host: linux-x86_64,   runs-on: ubuntu-24.04,     variant: orphan }
          - { host: linux-aarch64,  runs-on: ubuntu-24.04-arm, variant: plain }
          - { host: macos-arm64,    runs-on: macos-15,         variant: plain }
          - { host: windows-x86_64, runs-on: windows-latest,   variant: plain }
    runs-on: ${{ matrix.runs-on }}
    timeout-minutes: 60
    steps:
      - uses: actions/checkout@v4

      - if: ${{ matrix.host != 'macos-arm64' }}
        uses: ./.github/actions/bootstrap-mcpp
      - if: ${{ matrix.host == 'macos-arm64' }}
        uses: ./.github/actions/setup-macos-llvm
        with:
          image: macos-15

      - uses: ./.github/actions/use-built-mcpp
        with:
          host: ${{ matrix.host }}

      - name: The previous release's home runs this commit's mcpp without downloading or failing (${{ matrix.variant }})
        shell: bash
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          test -x "$MCPP_VENDORED_XLINGS"
          bash .github/tools/upgrade_lane.sh "${{ matrix.variant }}" "$MCPP_FRESH" "$MCPP_VENDORED_XLINGS"

      - uses: actions/upload-artifact@v4
        if: always()
        with:
          name: upgrade-lane-${{ matrix.host }}-${{ matrix.variant }}
          path: upgrade-lane-logs/
          if-no-files-found: ignore