# -*- Python -*-

# Configuration file for the 'lit' test runner.

import os
import platform
import subprocess

import lit.formats
import lit.util

# name: The name of this test suite.
config.name = "Clang-Unit"

# suffixes: A list of file extensions to treat as test files.
config.suffixes = []

# test_source_root: The root path where tests are located.
# test_exec_root: The root path where tests should be run.
config.test_exec_root = os.path.join(config.clang_obj_root, "unittests")
config.test_source_root = config.test_exec_root

# testFormat: The test format to use to interpret tests.
config.test_format = lit.formats.GoogleTest(config.llvm_build_mode, "Tests")

# Propagate the temp directory. Windows requires this because it uses \Windows\
# if none of these are present.
for v in ["TMP", "TEMP", "HOME", "SystemDrive"]:
    if v in os.environ:
        config.environment[v] = os.environ[v]

# Propagate sanitizer options.
for var in [
    "ASAN_SYMBOLIZER_PATH",
    "HWASAN_SYMBOLIZER_PATH",
    "MSAN_SYMBOLIZER_PATH",
    "TSAN_SYMBOLIZER_PATH",
    "UBSAN_SYMBOLIZER_PATH",
    "ASAN_OPTIONS",
    "HWASAN_OPTIONS",
    "MSAN_OPTIONS",
    "TSAN_OPTIONS",
    "UBSAN_OPTIONS",
]:
    if var in os.environ:
        config.environment[var] = os.environ[var]


def find_shlibpath_var():
    if platform.system() in ["Linux", "FreeBSD", "NetBSD", "OpenBSD", "SunOS"]:
        yield "LD_LIBRARY_PATH"
    elif platform.system() == "Darwin":
        yield "DYLD_LIBRARY_PATH"
    elif platform.system() == "Windows":
        yield "PATH"
    elif platform.system() == "AIX":
        yield "LIBPATH"


for shlibpath_var in find_shlibpath_var():
    # in stand-alone builds, shlibdir is clang's build tree
    # while llvm_libs_dir is installed LLVM (and possibly older clang)
    shlibpath = os.path.pathsep.join(
        (
            config.shlibdir,
            config.llvm_libs_dir,
            config.environment.get(shlibpath_var, ""),
        )
    )
    config.environment[shlibpath_var] = shlibpath
    break
else:
    lit_config.warning(
        "unable to inject shared library path on '{}'".format(platform.system())
    )

# It is not realistically possible to account for all options that could
# possibly be present in system and user configuration files, so disable
# default configs for the test runs.
config.environment["CLANG_NO_DEFAULT_CONFIG"] = "1"