name: probe runner

# Run this once by hand to find out what the runners can actually do before
# blaming the build for failing. It changes nothing.
on:
  workflow_dispatch:

jobs:
  probe:
    runs-on: metal
    steps:
      - name: Identity and privileges
        run: |
          echo "runner name : ${RUNNER_NAME:-?}"
          echo "arch        : $(uname -m)"
          echo "kernel      : $(uname -r)"
          echo "os          : $(. /etc/os-release && echo "$PRETTY_NAME")"
          echo "user        : $(id -un) uid=$(id -u)"
          echo -n "passwordless sudo : "
          sudo -n true 2>/dev/null && echo yes || echo no

      - name: Container tooling
        run: |
          echo -n "podman  : "; podman --version 2>/dev/null || echo MISSING
          echo -n "rootless: "; podman info --format '{{.Host.Security.Rootless}}' 2>/dev/null || echo '?'
          echo "storage : $(podman info --format '{{.Store.GraphRoot}}' 2>/dev/null || echo '?')"

      - name: Emulation
        run: |
          if [ -e /proc/sys/fs/binfmt_misc/qemu-aarch64 ]; then
            cat /proc/sys/fs/binfmt_misc/qemu-aarch64
          else
            echo "no aarch64 binfmt handler registered"
          fi

      - name: Can we actually run an aarch64 container?
        continue-on-error: true
        run: |
          podman run --rm --arch arm64 registry.fedoraproject.org/fedora:44 \
            bash -c 'echo "inside: $(uname -m)"; rpm --eval %{_arch}'

      - name: Disk space
        run: |
          df -h / /var /tmp . 2>/dev/null | sort -u