[WIP] Run CI on QEMU

.github/workflows/qemu.yml

@@ -0,0 +1,63 @@
+# SPDX-FileCopyrightText: 2023 fosslinux <[email protected]>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+name: Run under QEMU
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    name: Run under bubblewrap
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Install qemu
+        run: sudo apt-get install qemu-system-x86
+      - name: Checkout repo
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          # There is a strange bug(?) in nongnu, when you clone a git repository
+          # against a commit != HEAD with depth=1, it errors out.
+          fetch-depth: 0
+      - name: Query cache for sources
+        id: cache
+        uses: actions/cache/restore@v4
+        with:
+          path: |
+            mirror
+            mirror-state
+          key: cache-${{ hashFiles('steps/*/sources') }}
+          restore-keys: |
+            cache-
+      - name: Get sources
+        if: steps.cache.outputs.cache-hit != 'true'
+        run: mkdir -p mirror mirror-state && ./mirror.sh mirror mirror-state
+      - name: Cache sources
+        if: steps.cache.outputs.cache-hit != 'true'
+        uses: actions/cache/save@v4
+        with:
+          path: |
+            mirror
+            mirror-state
+          key: cache-${{ hashFiles('steps/*/sources') }}
+      - name: Run bootstrap
+        run: sudo ./rootfs.py --qemu --update-checksums --external-sources --cores 2 --mirror file://${PWD}/mirror; cat output
+      - name: Remount package disk
+        if: always()
+        run: >
+          DEV=$(sudo losetup -f --show target/external.img) &&
+          sudo partprobe ${DEV} &&
+          mkdir -p mnt &&
+          sudo mount ${DEV}p1 mnt
+      - name: Archive created packages
+        if: always() # archive both failed and successful builds
+        uses: actions/upload-artifact@v4
+        with:
+          name: packages
+          path: mnt/repo/**

lib/utils.py

@@ -19,6 +19,9 @@ def run(*args, cleanup=None, **kwargs):
     if kwargs.pop('verbose', False):
         print(arguments)
 
+    sys.stdout.flush()
+    sys.stderr.flush()
+
     try:
         return subprocess.run(arguments, check=True, **kwargs)
     except subprocess.CalledProcessError:

rootfs.py

@@ -17,6 +17,7 @@
 import argparse
 import os
 import signal
+import sys
 import threading
 
 from lib.generator import Generator, stage0_arch_map
@@ -335,7 +336,7 @@ def bootstrap(args, generator, target, size, cleanup):
                 '-nic', 'user,ipv6=off,model=e1000'
             ]
         if not args.interactive:
-            arg_list += ['-no-reboot', '-nographic']
+            arg_list += ['-no-reboot', '-nographic', '-serial', 'file:output']
         run(args.qemu_cmd, *arg_list, cleanup=cleanup)
 
 if __name__ == "__main__":

steps/jump/fiwix.sh

@@ -16,5 +16,5 @@ make_fiwix_initrd -s 1381376 /boot/fiwix.ext2
 if match x${BARE_METAL} xTrue; then
     kexec-fiwix /boot/fiwix -i /boot/fiwix.ext2 -m /e820 -c "fiwix console=/dev/tty1 root=/dev/ram0 initrd=fiwix.ext2 kexec_proto=linux kexec_size=199680 kexec_cmdline=\"init=/init consoleblank=0\""
 else
-    kexec-fiwix /boot/fiwix -i /boot/fiwix.ext2 -m /e820 -c "fiwix console=/dev/ttyS0 root=/dev/ram0 initrd=fiwix.ext2 kexec_proto=linux kexec_size=199680 kexec_cmdline=\"init=/init console=ttyS0\""
+    kexec-fiwix /boot/fiwix -i /boot/fiwix.ext2 -m /e820 -c "fiwix console=/dev/ttyS0 root=/dev/ram0 initrd=fiwix.ext2 kexec_proto=linux kexec_size=199680 kexec_cmdline=\"init=/init console=ttyS0,115200\""
 fi