def find_include_path()

in python/tvm/_ffi/libinfo.py [0:0]

• 51 lines of code
• 31 McCabe index (conditional complexity)

def find_include_path(name=None, search_path=None, optional=False):
    """Find header files for C compilation.

    Parameters
    ----------
    name : list of str
        List of directory names to be searched.

    Returns
    -------
    include_path : list(string)
        List of all found paths to header files.
    """
    if os.environ.get("TVM_HOME", None):
        source_dir = os.environ["TVM_HOME"]
    else:
        ffi_dir = os.path.dirname(os.path.abspath(os.path.expanduser(__file__)))
        for source_dir in ["..", "../..", "../../.."]:
            source_dir = os.path.join(ffi_dir, source_dir)
            if os.path.isdir(os.path.join(source_dir, "include")):
                break
        else:
            raise AssertionError("Cannot find the source directory given ffi_dir: {ffi_dir}")
    third_party_dir = os.path.join(source_dir, "3rdparty")

    header_path = []

    if os.environ.get("TVM_INCLUDE_PATH", None):
        header_path.append(os.environ["TVM_INCLUDE_PATH"])

    header_path.append(source_dir)
    header_path.append(third_party_dir)

    header_path = [os.path.abspath(x) for x in header_path]
    if search_path is not None:
        if isinstance(search_path, list):
            header_path = header_path + search_path
        else:
            header_path.append(search_path)
    if name is not None:
        if isinstance(name, list):
            tvm_include_path = []
            for n in name:
                tvm_include_path += [os.path.join(p, n) for p in header_path]
        else:
            tvm_include_path = [os.path.join(p, name) for p in header_path]
        dlpack_include_path = []
        dmlc_include_path = []
    else:
        tvm_include_path = [os.path.join(p, "include") for p in header_path]
        tvm_ffi_include_path = [os.path.join(p, "ffi/include") for p in header_path]
        dlpack_include_path = [os.path.join(p, "dlpack/include") for p in header_path]
        dmlc_include_path = [os.path.join(p, "dmlc-core/include") for p in header_path]

        # try to find include path
        include_found = [p for p in tvm_include_path if os.path.exists(p) and os.path.isdir(p)]
        include_found += [p for p in tvm_ffi_include_path if os.path.exists(p) and os.path.isdir(p)]
        include_found += [p for p in dlpack_include_path if os.path.exists(p) and os.path.isdir(p)]
        include_found += [p for p in dmlc_include_path if os.path.exists(p) and os.path.isdir(p)]

    if not include_found:
        message = (
            "Cannot find the files.\n"
            + "List of candidates:\n"
            + str("\n".join(tvm_include_path + dlpack_include_path))
        )
        if not optional:
            raise RuntimeError(message)
        return None

    return include_found