# -*- coding: utf-8 -*-
###########################################################################
# Copyright (c), The AiiDA team. All rights reserved. #
# This file is part of the AiiDA code. #
# #
# The code is hosted on GitHub at https://github.com/aiidateam/aiida-core #
# For further information on the license, see the LICENSE.txt file #
# For further information please visit http://www.aiida.net #
###########################################################################
"""Base settings required for the configuration of an AiiDA instance."""
import os
import pathlib
import typing
import warnings
USE_TZ = True
DEFAULT_UMASK = 0o0077
DEFAULT_AIIDA_PATH_VARIABLE = 'AIIDA_PATH'
DEFAULT_AIIDA_PATH = '~'
DEFAULT_AIIDA_USER = 'aiida@localhost'
DEFAULT_CONFIG_DIR_NAME = '.aiida'
DEFAULT_CONFIG_FILE_NAME = 'config.json'
DEFAULT_CONFIG_INDENT_SIZE = 4
DEFAULT_DAEMON_DIR_NAME = 'daemon'
DEFAULT_DAEMON_LOG_DIR_NAME = 'log'
DEFAULT_ACCESS_CONTROL_DIR_NAME = 'access'
AIIDA_CONFIG_FOLDER: typing.Optional[pathlib.Path] = None
DAEMON_DIR: typing.Optional[pathlib.Path] = None
DAEMON_LOG_DIR: typing.Optional[pathlib.Path] = None
ACCESS_CONTROL_DIR: typing.Optional[pathlib.Path] = None
[docs]def create_instance_directories():
"""Create the base directories required for a new AiiDA instance.
This will create the base AiiDA directory defined by the AIIDA_CONFIG_FOLDER variable, unless it already exists.
Subsequently, it will create the daemon directory within it and the daemon log directory.
"""
from aiida.common import ConfigurationError
directory_base = pathlib.Path(AIIDA_CONFIG_FOLDER).expanduser()
directory_daemon = directory_base / DAEMON_DIR
directory_daemon_log = directory_base / DAEMON_LOG_DIR
directory_access = directory_base / ACCESS_CONTROL_DIR
list_of_paths = [
directory_base,
directory_daemon,
directory_daemon_log,
directory_access,
]
umask = os.umask(DEFAULT_UMASK)
try:
for path in list_of_paths:
if path is directory_base and not path.exists():
warnings.warn(f'Creating AiiDA configuration folder `{path}`.')
try:
path.mkdir(parents=True, exist_ok=True)
except OSError as exc:
raise ConfigurationError(f'could not create the `{path}` configuration directory: {exc}') from exc
finally:
os.umask(umask)
[docs]def set_configuration_directory():
"""Determine the location of the configuration directory and set the related global variables.
The location of the configuration folder will be determined and optionally created following these heuristics:
* If the `AIIDA_PATH` variable is set, all the paths will be checked to see if they contain a configuration
folder. The first one to be encountered will be set as `AIIDA_CONFIG_FOLDER`. If none of them contain one,
a configuration folder will be created in the last path considered.
* If the `AIIDA_PATH` variable is not set the `DEFAULT_AIIDA_PATH` value will be used as base path and if it
does not yet contain a configuration folder, one will be created.
In principle then, a configuration folder should always be found or automatically created.
"""
# pylint: disable = global-statement
global AIIDA_CONFIG_FOLDER
global DAEMON_DIR
global DAEMON_LOG_DIR
global ACCESS_CONTROL_DIR
environment_variable = os.environ.get(DEFAULT_AIIDA_PATH_VARIABLE, None)
if environment_variable:
# Loop over all the paths in the `AIIDA_PATH` variable to see if any of them contain a configuration folder
for base_dir_path in [path for path in environment_variable.split(':') if path]:
AIIDA_CONFIG_FOLDER = pathlib.Path(base_dir_path).expanduser()
# Only add the base config directory name to the base path if it does not already do so
# Someone might already include it in the environment variable. e.g.: AIIDA_PATH=/home/some/path/.aiida
if AIIDA_CONFIG_FOLDER.name != DEFAULT_CONFIG_DIR_NAME:
AIIDA_CONFIG_FOLDER = AIIDA_CONFIG_FOLDER / DEFAULT_CONFIG_DIR_NAME
# If the directory exists, we leave it set and break the loop
if AIIDA_CONFIG_FOLDER.is_dir():
break
else:
# The `AIIDA_PATH` variable is not set, so default to the default path and try to create it if it does not exist
AIIDA_CONFIG_FOLDER = pathlib.Path(DEFAULT_AIIDA_PATH).expanduser() / DEFAULT_CONFIG_DIR_NAME
DAEMON_DIR = AIIDA_CONFIG_FOLDER / DEFAULT_DAEMON_DIR_NAME
DAEMON_LOG_DIR = DAEMON_DIR / DEFAULT_DAEMON_LOG_DIR_NAME
ACCESS_CONTROL_DIR = AIIDA_CONFIG_FOLDER / DEFAULT_ACCESS_CONTROL_DIR_NAME
create_instance_directories()
# Initialize the configuration directory settings
set_configuration_directory()