[PATCH 0/2] Fix venv issues with Avocado by reverting to an older version

[Paolo Bonzini <pbonzini@redhat.com>]

Bumping avocado to version 101 has two issues.  First, there are problems
where Avocado is not logging of command lines or terminal output, and not
collecting Python logs outside the avocado namespace.

Second, the recent changes to Python handling mean that there is a single
virtual environment for all the build, instead of a separate one for testing.
Requiring a too-new version of avocado causes conflicts with any avocado
plugins installed on the host:

   $ make check-venv
   make[1]: Entering directory '/home/berrange/src/virt/qemu/build'
     GIT     ui/keycodemapdb tests/fp/berkeley-testfloat-3 tests/fp/berkeley-softfloat-3 dtc
     VENVPIP install -e /home/berrange/src/virt/qemu/python/
     VENVPIP install -r /home/berrange/src/virt/qemu/tests/requirements.txt
   ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
   avocado-framework-plugin-varianter-yaml-to-mux 98.0 requires avocado-framework==98.0, but you have avocado-framework 101.0 which is incompatible.
   avocado-framework-plugin-result-html 98.0 requires avocado-framework==98.0, but you have avocado-framework 101.0 which is incompatible.
   make[1]: Leaving directory '/home/berrange/src/virt/qemu/build'

To avoid this issue, tests/requirements.txt should use a ">=" constraint
and the version of Avocado should be limited to what distros provide
in the system packages.  Only Fedora has Avocado, and more specifically
version 92.0.  For now, this series reverts to the older requirement
(version >=88.1) while leaving further version bumps to future changes.

Paolo

Paolo Bonzini (2):
  Revert "tests/requirements.txt: bump up avocado-framework version to
    101.0"
  tests: update avocado installation to use mkvenv

 python/tests/minreqs.txt |  3 ++-
 tests/Makefile.include   | 26 +++++++++++++-------------
 tests/requirements.txt   |  9 ---------
 3 files changed, 15 insertions(+), 23 deletions(-)
 delete mode 100644 tests/requirements.txt

-- 
2.40.1