def exit(error_type: int) -> NoReturn:
"""Using mypy's argument parser, raise `SystemExit` to fail hard if validation fails.
Considering that the plugin's startup duration is around double as long as mypy's, this aims to
import and construct objects only when that's required - which happens once and terminates the
run. Considering that most of the runs are successful, there's no need for this to linger in the
global scope.
"""
from mypy.main import CapturableArgumentParser
usage = """(config)
...
[mypy.plugins.django_stubs]
django_settings_module: str (required)
...
""".replace(
"\n" + 8 * " ", "\n"
)
handler = CapturableArgumentParser(prog="(django-stubs) mypy", usage=usage)
messages = {
1: "mypy config file is not specified or found",
2: "no section [mypy.plugins.django-stubs]",
3: "the setting is not provided",
}
handler.error("'django_settings_module' is not set: " + messages[error_type])
def exit_with_error(msg: str, is_toml: bool = False) -> NoReturn:
"""Using mypy's argument parser, raise `SystemExit` to fail hard if validation fails.
Considering that the plugin's startup duration is around double as long as mypy's, this aims to
import and construct objects only when that's required - which happens once and terminates the
run. Considering that most of the runs are successful, there's no need for this to linger in the
global scope.
"""
from mypy.main import CapturableArgumentParser
handler = CapturableArgumentParser(
prog="(django-stubs) mypy",
usage=textwrap.dedent(TOML_USAGE if is_toml else INI_USAGE))
handler.error(msg)
def exit_toml(error_type: int) -> NoReturn:
from mypy.main import CapturableArgumentParser
usage = """
(config)
...
[tool.django-stubs]
django_settings_module = str (required)
...
"""
handler = CapturableArgumentParser(prog="(django-stubs) mypy",
usage=textwrap.dedent(usage))
messages = {
1: "mypy config file is not specified or found",
2: "no section [tool.django-stubs]",
3: "the setting is not provided",
4: "the setting must be a string",
}
handler.error("'django_settings_module' not found or invalid: " +
messages[error_type])