# Test class and utilities for functional tests
#
# Copyright 2018, 2024 Red Hat, Inc.
#
# Original Author (Avocado-based tests):
#  Cleber Rosa <crosa@redhat.com>
#
# Adaption for standalone version:
#  Thomas Huth <thuth@redhat.com>
#
# This work is licensed under the terms of the GNU GPL, version 2 or
# later.  See the COPYING file in the top-level directory.

import os
from pathlib import Path


def _source_dir():
    # Determine top-level directory of the QEMU sources
    return Path(__file__).parent.parent.parent.parent

def _build_dir():
    root = os.getenv('QEMU_BUILD_ROOT')
    if root is not None:
        return Path(root)
    # Makefile.mtest only exists in build dir, so if it is available, use CWD
    if os.path.exists('Makefile.mtest'):
        return Path(os.getcwd())

    root = os.path.join(_source_dir(), 'build')
    if os.path.exists(root):
        return Path(root)

    raise Exception("Cannot identify build dir, set QEMU_BUILD_ROOT")

BUILD_DIR = _build_dir()