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from build_scripts.options import has_option
from build_scripts.options import option_value
from build_scripts.utils import install_pip_dependencies
from build_scripts.utils import get_qtci_virtualEnv
from build_scripts.utils import run_instruction
from build_scripts.utils import rmtree
from build_scripts.utils import get_python_dict
from build_scripts.utils import acceptCITestConfiguration
from build_scripts.utils import get_ci_qmake_path
import os

# Values must match COIN thrift
CI_HOST_OS = option_value("os")
CI_TARGET_OS = option_value("targetOs")
CI_HOST_ARCH = option_value("hostArch")
CI_TARGET_ARCH = option_value("targetArch")
CI_HOST_OS_VER = option_value("osVer")
CI_ENV_INSTALL_DIR = option_value("instdir")
CI_ENV_AGENT_DIR = option_value("agentdir")
CI_COMPILER = option_value("compiler")
CI_INTEGRATION_ID = option_value("coinIntegrationId")
CI_FEATURES = []
_ci_features = option_value("features")
if _ci_features is not None:
    for f in _ci_features.split(', '):
        CI_FEATURES.append(f)
CI_RELEASE_CONF = has_option("packaging")
CI_TEST_PHASE = option_value("phase")
if CI_TEST_PHASE not in ["ALL", "BUILD", "WHEEL"]:
    CI_TEST_PHASE = "ALL"



def get_current_script_path():
    """ Returns the absolute path containing this script. """
    try:
        this_file = __file__
    except NameError:
        this_file = sys.argv[0]
    this_file = os.path.abspath(this_file)
    return os.path.dirname(this_file)

def is_snapshot_build():
    """
    Returns True if project needs to be built with --snapshot-build

    This is true if the version found in pyside_version.py is not a
    pre-release version (no alphas, betas).

    This eliminates the need to remove the --snapshot-build option
    on a per-release branch basis (less things to remember to do
    for a release).
    """
    setup_script_dir = get_current_script_path()
    pyside_version_py = os.path.join(
        setup_script_dir, "sources", "pyside2", "pyside_version.py")
    d = get_python_dict(pyside_version_py)

    pre_release_version_type = d['pre_release_version_type']
    pre_release_version = d['pre_release_version']
    if pre_release_version or pre_release_version_type:
        return True
    return False

def call_setup(python_ver, phase):
    _pExe, _env, env_pip, env_python = get_qtci_virtualEnv(python_ver, CI_HOST_OS, CI_HOST_ARCH, CI_TARGET_ARCH)

    if phase in ["BUILD"]:
        rmtree(_env, True)
        run_instruction(["virtualenv", "-p", _pExe,  _env], "Failed to create virtualenv")
        install_pip_dependencies(env_pip, ["pip", "numpy", "setuptools", "sphinx", "six", "wheel"])

    cmd = [env_python, "-u", "setup.py"]
    if phase in ["BUILD"]:
        cmd += ["build", "--standalone", "--skip-packaging"]
    elif phase in ["WHEEL"] or CI_RELEASE_CONF:
        cmd += ["bdist_wheel", "--reuse-build", "--standalone", "--skip-cmake", "--skip-make-install", "--only-package"]

    cmd += ["--build-tests",
            "--parallel=4",
            "--verbose-build"]
    if python_ver == "3":
        cmd += ["--limited-api=yes"]
    if is_snapshot_build():
        cmd += ["--snapshot-build"]

    qmake_path = get_ci_qmake_path(CI_ENV_INSTALL_DIR, CI_HOST_OS)
    cmd.append(qmake_path)

    # Due to certain older CMake versions generating very long paths
    # (at least with CMake 3.6.2) when using the export() function,
    # pass the shorter paths option on Windows so we don't hit
    # the path character length limit (260).
    if CI_HOST_OS == "Windows":
        cmd += ["--shorter-paths"]

    cmd += ["--package-timestamp=" + CI_INTEGRATION_ID]

    env = os.environ
    run_instruction(cmd, "Failed to run setup.py for build", initial_env=env)


def run_build_instructions(phase):

    # Uses default python, hopefully we have python2 installed on all hosts
    # Skip building using Python 2 on Windows, because of different MSVC C runtimes (VS2008 vs VS2015+)
    if CI_HOST_OS != "Windows":
        call_setup("", phase)
    # In case of packaging build, we have to build also python3 wheel
    if CI_RELEASE_CONF and CI_HOST_OS_VER not in ["RHEL_6_6"]:
        call_setup("3", phase)

if __name__ == "__main__":
    if not acceptCITestConfiguration(CI_HOST_OS, CI_HOST_OS_VER, CI_TARGET_ARCH, CI_COMPILER):
        exit()

    # Remove some environment variables that impact cmake
    for env_var in ['CC', 'CXX']:
        if os.environ.get(env_var):
            del os.environ[env_var]

    if CI_TEST_PHASE in ["ALL", "BUILD"]:
        run_build_instructions("BUILD")

    if CI_TEST_PHASE in ["ALL", "WHEEL"]:
        run_build_instructions("WHEEL")
