# TEMPORARY diagnostic workflow. Deleted before this branch is merged.
#
# The Actions jobs/logs API is not readable by this account, so the only
# available signal is the commit-status API, which reports one entry per
# *job*. This file therefore encodes the diagnosis as job topology: each job
# below isolates exactly one hypothesis about why the pinned-alpine build job
# failed after 22s on main (run 25), and each shows up as its own status
# context, so one push tests them all in parallel.
name: probe

on:
    push:
        branches:
            - pin-deploy-refs-observable

jobs:
    # Control. If this passes, act_runner supplies its own node for JS actions
    # and the whole "install node first" theory is wrong.
    p1-bare-alpine-checkout:
        runs-on: ubuntu-latest
        container:
            # alpine 3.21, 2026-02-28
            image: alpine@sha256:c3f8e73fdb79deaebaa2037150150191b9dcbfba68b4a46d70103204c53f4709
        steps:
            # actions/checkout v4.2.2, 2026-02-28
            - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683

    # Exactly the reverted prefix: apk prerequisites, then checkout. Isolates
    # checkout from everything downstream of it.
    p2-alpine-apk-checkout:
        runs-on: ubuntu-latest
        container:
            # alpine 3.21, 2026-02-28
            image: alpine@sha256:c3f8e73fdb79deaebaa2037150150191b9dcbfba68b4a46d70103204c53f4709
        defaults:
            run:
                shell: sh
        steps:
            - run: apk add --no-cache nodejs git tar
            # actions/checkout v4.2.2, 2026-02-28
            - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
              with:
                  submodules: recursive

    # p2 plus the site build. Isolates script/bootstrap and script/test inside
    # the Actions container from the JS-action machinery.
    p3-alpine-apk-build:
        runs-on: ubuntu-latest
        container:
            # alpine 3.21, 2026-02-28
            image: alpine@sha256:c3f8e73fdb79deaebaa2037150150191b9dcbfba68b4a46d70103204c53f4709
        defaults:
            run:
                shell: sh
        steps:
            - run: apk add --no-cache nodejs git tar
            # actions/checkout v4.2.2, 2026-02-28
            - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
              with:
                  submodules: recursive
            - run: script/bootstrap
            - run: script/test
            - run: tar -czf site.tar.gz public

    # p2 plus the artifact upload. This is the one step whose protocol changed
    # in this issue (v3 -> v4) and the ~22s timing is consistent with reaching
    # it.
    p4-alpine-apk-upload:
        runs-on: ubuntu-latest
        container:
            # alpine 3.21, 2026-02-28
            image: alpine@sha256:c3f8e73fdb79deaebaa2037150150191b9dcbfba68b4a46d70103204c53f4709
        defaults:
            run:
                shell: sh
        steps:
            - run: apk add --no-cache nodejs git tar
            # actions/checkout v4.2.2, 2026-02-28
            - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
            - run: tar -czf probe4.tar.gz hugo.toml
            # actions/upload-artifact v4.6.2, 2026-08-09
            - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02
              with:
                  name: probe4
                  path: probe4.tar.gz

    # Fallback image direction, measured rather than assumed: an image that
    # already carries node.
    p5-node20alpine-checkout:
        runs-on: ubuntu-latest
        container:
            # node 20-alpine, 2026-08-09
            image: node@sha256:fb4cd12c85ee03686f6af5362a0b0d56d50c58a04632e6c0fb8363f609372293
        defaults:
            run:
                shell: sh
        steps:
            # actions/checkout v4.2.2, 2026-02-28
            - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683

    # The glibc control. If musl node is the problem, this passes where the
    # alpine jobs do not.
    p6-node20slim-checkout:
        runs-on: ubuntu-latest
        container:
            # node 20-bookworm-slim, 2026-08-09
            image: node@sha256:2cf067cfed83d5ea958367df9f966191a942351a2df77d6f0193e162b5febfc0
        steps:
            # actions/checkout v4.2.2, 2026-02-28
            - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683