def calc_init_value(self, value):
if value is None:
# it's None
# TODO: may be we still can "normalize" the value
return value
if isinstance(value, Path):
return target(str(value), config=self.target_config)
if isinstance(value, Target):
# it's deferred result - > we load it lately
return value
# we process value regardless parse!
# cf_value.require_parse:
if self.env_interpolation and isinstance(value, six.string_types):
try:
value = expand_env_var(value)
except Exception as ex:
logger.warning(
"failed to expand variable '%s' : %s", safe_string(value), str(ex)
)
# in case we are output and have value:
# it's Target or it's str to be converted as target
load_value = self.load_on_build and not self.is_output()
return self.value_type.parse_value(
value, load_value=load_value, target_config=self.target_config
)
def get(self, section, key, default=None, expand_env=True):
config_value = self.get_config_value(section=section, key=key)
if config_value:
value = config_value.value
if expand_env:
value = expand_env_var(value)
value = STR_VALUE_TYPE._interpolate_from_str(value)
return value
return default
def init_databand_env():
if in_quiet_mode():
# we should not print anything if we are in shell completion!
import logging
logging.getLogger().setLevel(logging.CRITICAL + 1)
# MAIN PART OF THE SCRIPT
if ENV_DBND_HOME not in os.environ:
_set_project_root()
if ENV_DBND_HOME not in os.environ:
raise DatabandHomeError(
"\nDBND_HOME could not be found when searching from current directory '%s' to root folder!\n "
"Trying fixing that issue by:\n"
"\t 1. Explicitly set current directory to DBND HOME via: `export DBND_HOME=ROOT_OF_YOUR_PROJECT`.\n"
"\t 2. `cd` into your project directory.\n"
"\t 3. Create one of the following files inside current directory: [%s].\n"
"\t 4. Run 'dbnd project-init' in current directory." %
(os.getcwd(), ", ".join(_MARKER_FILES)))
_dbnd_home = os.environ[ENV_DBND_HOME]
if ENV_DBND_SYSTEM not in os.environ:
dbnd_system = os.path.join(_dbnd_home, ".dbnd")
if not os.path.exists(dbnd_system) and os.path.exists(
os.path.join(_dbnd_home, "dbnd")):
dbnd_system = os.path.join(_dbnd_home, "dbnd")
os.environ[ENV_DBND_SYSTEM] = dbnd_system
if ENV_DBND_LIB not in os.environ:
os.environ[ENV_DBND_LIB] = _databand_package
if "AIRFLOW_HOME" not in os.environ:
os.environ["AIRFLOW_HOME"] = airflow_home = os.path.join(
os.environ[ENV_DBND_SYSTEM], "airflow")
else:
airflow_home = expand_env_var(os.environ["AIRFLOW_HOME"])
# airflow config override
airflow_user_config = os.path.join(airflow_home, "airflow.cfg")
if ENV_AIRFLOW_CONFIG not in os.environ and not os.path.exists(
airflow_user_config):
# User did not define his own airflow configuration
# Use dbnd core lib configuration
os.environ[ENV_AIRFLOW_CONFIG] = os.path.join(_databand_package,
"conf", "airflow.cfg")
if _DBND_DEBUG_INIT:
print(_env_banner())
_init_windows_python_path()
