waydroid: initial implementation

[danielfullmer]

Successfully builds, but currently untested in a linux environment.

Built using: nix-build --arg configuration '{ device="x86_64"; flavor="waydroid; }' -A config.build.waydroid

Notes:

• external/mesa3d relies on the system /usr/bin/python and needs Mako to be installed.
• Required a manual fix for: Instructions specified in anbox.xml not valid for Lineage OS 17.1 waydroid/waydroid#22

[vroad]

@danielfullmer
I rebased and built from your branch, converted the image to raw image with simg2img, and copied generated image to /var/lib/waydroid/images and run, but it doesn't mount as read-write.

(024099) [17:43:14] % mount /var/lib/waydroid/images/system.img /var/lib/waydroid/rootfs
(024099) [17:43:14] % mount -o remount,ro /var/lib/waydroid/images/system.img /var/lib/waydroid/rootfs
(024099) [17:43:14] % mount /var/lib/waydroid/images/vendor.img /var/lib/waydroid/rootfs/vendor
(024099) [17:43:14] % mount -o remount,ro /var/lib/waydroid/images/vendor.img /var/lib/waydroid/rootfs/vendor
(024099) [17:43:14] % touch /var/lib/waydroid/rootfs/vendor/waydroid.prop
touch: cannot touch '/var/lib/waydroid/rootfs/vendor/waydroid.prop': Read-only file system
(024099) [17:43:14] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
(024099) [17:43:14] NOTE: The failed command's output is above the ^^^ line in the log file: /var/lib/waydroid/waydroid.log
(024099) [17:43:14] ERROR: Command failed: % touch /var/lib/waydroid/rootfs/vendor/waydroid.prop
(024099) [17:43:14] See also: <https://github.com/waydroid>
(024099) [17:43:14] Traceback (most recent call last):
  File "/nix/store/gadlk5s2wnkhv8srya51zwiksp51lk3g-waydroid-1.2.1/lib/python3.9/site-packages/tools/__init__.py", line 69, in main
    actions.container_manager.start(args)
  File "/nix/store/gadlk5s2wnkhv8srya51zwiksp51lk3g-waydroid-1.2.1/lib/python3.9/site-packages/tools/actions/container_manager.py", line 132, in start
    helpers.images.mount_rootfs(args, cfg["waydroid"]["images_path"])
  File "/nix/store/gadlk5s2wnkhv8srya51zwiksp51lk3g-waydroid-1.2.1/lib/python3.9/site-packages/tools/helpers/images.py", line 113, in mount_rootfs
    helpers.mount.bind_file(args, args.work + "/waydroid.prop",
  File "/nix/store/gadlk5s2wnkhv8srya51zwiksp51lk3g-waydroid-1.2.1/lib/python3.9/site-packages/tools/helpers/mount.py", line 69, in bind_file
    tools.helpers.run.user(args, ["touch", destination])
  File "/nix/store/gadlk5s2wnkhv8srya51zwiksp51lk3g-waydroid-1.2.1/lib/python3.9/site-packages/tools/helpers/run.py", line 58, in user
    return tools.helpers.run_core.core(args, msg, cmd, working_dir, output,
  File "/nix/store/gadlk5s2wnkhv8srya51zwiksp51lk3g-waydroid-1.2.1/lib/python3.9/site-packages/tools/helpers/run_core.py", line 343, in core
    check_return_code(args, code, log_message)
  File "/nix/store/gadlk5s2wnkhv8srya51zwiksp51lk3g-waydroid-1.2.1/lib/python3.9/site-packages/tools/helpers/run_core.py", line 219, in check_return_code
    raise RuntimeError("Command failed: " + log_message)
RuntimeError: Command failed: % touch /var/lib/waydroid/rootfs/vendor/waydroid.prop

~ via ❄️  impure (shell) 
❯ mount | grep waydroid
/var/lib/waydroid/images/system.img on /var/lib/waydroid/rootfs type ext4 (ro,relatime)
/var/lib/waydroid/images/vendor.img on /var/lib/waydroid/rootfs/vendor type ext4 (ro,relatime)

My rebased waydroid branch:
https://github.com/vroad/robotnix/tree/waydroid-old

[vroad]

Well it should mount as read-only, not read-write as waydroid is trying to mount images with mount -o remount,ro, so what's the cause of the error?

[vroad]

I'm trying to update your scripts to build the image in a way closer to official guide, current script seems to be based on older version of waydroid, and no longer matches waydroid's current project structure.

[vroad]

I've just built images that at least boots successfully on waydroid! vroad@e414e42