ci: the test jobs use no actions (the runner's shared action clone broke parallel jobs); logs go into the job log

.github/workflows/iso-2-gitea-build.yml

@@ -112,53 +112,29 @@ jobs:
     defaults:
       run:
         shell: bash
+    # No `uses:` in this job on purpose: the three jobs start in the same second, and the runner clones every
+    # action into one shared folder (they broke each other's checkout of actions/cache). Plain git and curl instead.
     steps:
-      # First only what the cache action needs (node, git), then the caches, then the rest from the restored cache.
-      - name: Node and git
-        id: node
-        run: |
-          pacman-key --init && pacman-key --populate
-          pacman -Syu --noconfirm --needed nodejs git
-          # The caches' keys: one entry per ISO week (an exact hit saves nothing, a new week restores the old one and saves once).
-          echo "week=$(date -u +%G-%V)" >> "$GITHUB_OUTPUT"
-      - name: Cache - pacman packages
-        uses: actions/cache@v4
-        with:
-          path: /var/cache/pacman/pkg
-          key: pacman-test-${{ steps.node.outputs.week }}
-          restore-keys: pacman-test-
-      # The guests' packages (VM_CACHE, shared into the VMs): downloaded once for every run.
-      - name: Cache - the VMs' packages
-        uses: actions/cache@v4
-        with:
-          path: /root/vms/pkg-cache
-          key: vmpkg-${{ needs.build.outputs.steamify }}-${{ steps.node.outputs.week }}
-          restore-keys: |
-            vmpkg-${{ needs.build.outputs.steamify }}-
-            vmpkg-
       - name: Tools and KVM
         run: |
-          pacman -S --noconfirm --needed qemu-desktop edk2-ovmf openssh libarchive procps-ng util-linux python git sudo
+          pacman-key --init && pacman-key --populate
+          pacman -Syu --noconfirm --needed qemu-desktop edk2-ovmf openssh libarchive procps-ng util-linux python git sudo curl unzip
           # Fail at once, with a reason, when the runner cannot run a VM with KVM.
           [ -c /dev/kvm ] || { echo "::error::no /dev/kvm in this container: the runner needs KVM (and privileged containers)"; exit 1; }
           nproc; free -g | sed -n 2p; df -h . | tail -n 1
 
-      # The test scripts expect their repos side by side: steamify-cachyos-dev (the scripts),
-      # steamify-cachyos at the Steamify version the ISO has (shared into the VM, 9p `repo`).
-      - uses: actions/checkout@v4
-        with:
-          repository: theupriser/steamify-cachyos-dev
-          path: steamify-cachyos-dev
-      - uses: actions/checkout@v4
-        with:
-          repository: theupriser/steamify-cachyos
-          ref: v${{ needs.build.outputs.steamify }}
-          path: steamify-cachyos
-
-      - uses: christopherhx/gitea-download-artifact@v4
-        with:
-          name: iso
-          path: iso
+      # The test scripts expect their repos side by side: steamify-cachyos-dev (the scripts), steamify-cachyos at
+      # the Steamify version the ISO has (shared into the VM, 9p `repo`), and the ISO this run built (its artifact).
+      - name: Scripts, Steamify and the ISO
+        run: |
+          base="${{ github.server_url }}"
+          git clone -q --depth 1 "$base/theupriser/steamify-cachyos-dev" steamify-cachyos-dev
+          git clone -q --depth 1 --branch "v${{ needs.build.outputs.steamify }}" "$base/theupriser/steamify-cachyos" steamify-cachyos
+          api="$base/api/v1/repos/${{ github.repository }}/actions"
+          id="$(curl -fsS "$api/runs/${{ github.run_id }}/artifacts" | python3 -c "import json,sys; print(next(a['id'] for a in json.load(sys.stdin)['artifacts'] if a['name']=='iso'))")"
+          curl -fsSL --retry 5 --retry-all-errors -o iso.zip "$api/artifacts/$id/zip"
+          unzip -q iso.zip -d iso && rm iso.zip
+          ls -la iso
 
       - name: Boot loader test (${{ matrix.loader }})
         env:
@@ -166,7 +142,7 @@ jobs:
           VM_TIMEZONE: UTC
           # The runner is 4 cores / 8 threads: three VMs with 2 vCPUs leave 2 threads for the host and the runner.
           VM_CPUS: "2"
-          # RAM of the live installer VM (the ISO is read from its cdrom, only the overlay and the installer use RAM); 8 GB is the local default, lean with headroom: lower it only after a run shows the install stays well under
+          # RAM of the live installer VM (the ISO is read from its cdrom, only the overlay and the installer use RAM).
           VM_INSTALL_MEM: 5G
           VM_ISO_DIR: ${{ github.workspace }}/iso
         run: |
@@ -176,19 +152,14 @@ jobs:
           cd steamify-cachyos-dev
           VM_ISO="$iso" scripts/vmbootloadertest.sh "${{ matrix.loader }}" --install --quick
 
-      - name: Logs
+      # The logs go into this job's log (public), no artifact action needed.
+      - name: VM logs
         if: always()
-        uses: christopherhx/gitea-upload-artifact@v4
-        with:
-          name: test-${{ matrix.loader }}
-          path: |
-            /root/vms/bl-${{ matrix.loader }}.test.log
-            /root/vms/bl-${{ matrix.loader }}/vm.log
-            /root/vms/bl-${{ matrix.loader }}/vm-install.log
-            /root/vms/bl-${{ matrix.loader }}/serial.log
-            /root/vms/bl-${{ matrix.loader }}/install.log
-          retention-days: 7
-          if-no-files-found: ignore
+        run: |
+          for f in ~/vms/bl-${{ matrix.loader }}/install.log ~/vms/bl-${{ matrix.loader }}/serial.log ~/vms/bl-${{ matrix.loader }}/vm.log; do
+              [ -s "$f" ] && { echo "::group::$f (last 150 lines)"; tail -n 150 "$f" | sed 's/\x1b\[[0-9;]*m//g'; echo "::endgroup::"; }
+          done
+          true
 
   release:
     name: Release