Waydroid creates untracked pyc files when run

Description:

Waydroid creates untracked pyc files in system folders because it runs python with root permissions.

Additional info:

• package version(s): extra/waydroid 1.5.4-2
• config and/or log files: N/A
• link to upstream bug report, if any: N/A

Steps to reproduce:

This was previously discovered and confirmed with multiple versions of aur/waydroid. I am not retesting with the extra package because I don't see anything in the PKGBUILD that mitigates the problem.

1. Install waydroid
2. Set up and run it
3. find /usr/lib/waydroid -name '*.pyc'

Fix

This is a solution I've applied to some AUR packages with similar problem. Add following (or similar) to the package function, after files have been installed.

  python -m compileall -f -p / -s "$pkgdir" "$pkgdir/"
  python -O -m compileall -f -p / -s "$pkgdir" "$pkgdir/"
  python -OO -m compileall -f -p / -s "$pkgdir" "$pkgdir/"

The python version also needs to be limited to prevent creation of untracked pyc files after new python minor releases. Add to the package function:

  local _pyver_major _pyver_minor
  _pyver_major=$(python -c 'import sys; print(sys.version_info.major)')
  _pyver_minor=$(python -c 'import sys; print(sys.version_info.minor)')

  eval "depends+=(
    'python>=${_pyver_major}.${_pyver_minor}'
    'python<${_pyver_major}.$((_pyver_minor + 1))'
  )"

Note: eval "depends+=(...)" instead of depends+=() is to prevent makepkg -printsrcinfo from generating nonsense:

  depends = python>=.
  depends = python<.1

With above solution, package will need to be rebuilt after new python minor releases (major.minor.patch).