# Copyright 2022 The IREE Authors
#
# Licensed under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
"""Lit config for IREE."""

# Lint for undefined variables is disabled as config is not defined inside this
# file, instead config is injected by way of evaluating runlit.cfg.py from
# runlit.site.cfg.py which in turn is evaluated by lit.py.
# pylint: disable=undefined-variable

import os
import sys
import tempfile

import lit.formats

config.name = "IREE"
config.suffixes = [".mlir", ".txt"]
config.test_format = lit.formats.ShTest(execute_external=True)
# Forward all IREE environment variables
passthrough_env_vars = ["VK_ICD_FILENAMES"]
config.environment.update(
    {
        k: v
        for k, v in os.environ.items()
        if k.startswith("IREE_") or k in passthrough_env_vars
    }
)

# Use the most preferred temp directory.
config.test_exec_root = (
    os.environ.get("TEST_UNDECLARED_OUTPUTS_DIR")
    or os.environ.get("TEST_TMPDIR")
    or os.path.join(tempfile.gettempdir(), "lit")
)

config.substitutions.extend(
    [
        ("%PYTHON", os.getenv("PYTHON", sys.executable)),
    ]
)