Tipragot
628be439b8
Cela permet de ne pas avoir de problèmes de compatibilité car python est dans le git.
127 lines
4.5 KiB
Python
127 lines
4.5 KiB
Python
from __future__ import annotations
|
|
|
|
import os
|
|
from argparse import SUPPRESS, ArgumentDefaultsHelpFormatter, ArgumentParser, Namespace
|
|
from collections import OrderedDict
|
|
|
|
from virtualenv.config.convert import get_type
|
|
from virtualenv.config.env_var import get_env_var
|
|
from virtualenv.config.ini import IniConfig
|
|
|
|
|
|
class VirtualEnvOptions(Namespace):
|
|
def __init__(self, **kwargs) -> None:
|
|
super().__init__(**kwargs)
|
|
self._src = None
|
|
self._sources = {}
|
|
|
|
def set_src(self, key, value, src):
|
|
setattr(self, key, value)
|
|
if src.startswith("env var"):
|
|
src = "env var"
|
|
self._sources[key] = src
|
|
|
|
def __setattr__(self, key, value) -> None:
|
|
if getattr(self, "_src", None) is not None:
|
|
self._sources[key] = self._src
|
|
super().__setattr__(key, value)
|
|
|
|
def get_source(self, key):
|
|
return self._sources.get(key)
|
|
|
|
@property
|
|
def verbosity(self):
|
|
if not hasattr(self, "verbose") and not hasattr(self, "quiet"):
|
|
return None
|
|
return max(self.verbose - self.quiet, 0)
|
|
|
|
def __repr__(self) -> str:
|
|
return f"{type(self).__name__}({', '.join(f'{k}={v}' for k, v in vars(self).items() if not k.startswith('_'))})"
|
|
|
|
|
|
class VirtualEnvConfigParser(ArgumentParser):
|
|
"""Custom option parser which updates its defaults by checking the configuration files and environmental vars."""
|
|
|
|
def __init__(self, options=None, env=None, *args, **kwargs) -> None:
|
|
env = os.environ if env is None else env
|
|
self.file_config = IniConfig(env)
|
|
self.epilog_list = []
|
|
self.env = env
|
|
kwargs["epilog"] = self.file_config.epilog
|
|
kwargs["add_help"] = False
|
|
kwargs["formatter_class"] = HelpFormatter
|
|
kwargs["prog"] = "virtualenv"
|
|
super().__init__(*args, **kwargs)
|
|
self._fixed = set()
|
|
if options is not None and not isinstance(options, VirtualEnvOptions):
|
|
msg = "options must be of type VirtualEnvOptions"
|
|
raise TypeError(msg)
|
|
self.options = VirtualEnvOptions() if options is None else options
|
|
self._interpreter = None
|
|
self._app_data = None
|
|
|
|
def _fix_defaults(self):
|
|
for action in self._actions:
|
|
action_id = id(action)
|
|
if action_id not in self._fixed:
|
|
self._fix_default(action)
|
|
self._fixed.add(action_id)
|
|
|
|
def _fix_default(self, action):
|
|
if hasattr(action, "default") and hasattr(action, "dest") and action.default != SUPPRESS:
|
|
as_type = get_type(action)
|
|
names = OrderedDict((i.lstrip("-").replace("-", "_"), None) for i in action.option_strings)
|
|
outcome = None
|
|
for name in names:
|
|
outcome = get_env_var(name, as_type, self.env)
|
|
if outcome is not None:
|
|
break
|
|
if outcome is None and self.file_config:
|
|
for name in names:
|
|
outcome = self.file_config.get(name, as_type)
|
|
if outcome is not None:
|
|
break
|
|
if outcome is not None:
|
|
action.default, action.default_source = outcome
|
|
else:
|
|
outcome = action.default, "default"
|
|
self.options.set_src(action.dest, *outcome)
|
|
|
|
def enable_help(self):
|
|
self._fix_defaults()
|
|
self.add_argument("-h", "--help", action="help", default=SUPPRESS, help="show this help message and exit")
|
|
|
|
def parse_known_args(self, args=None, namespace=None):
|
|
if namespace is None:
|
|
namespace = self.options
|
|
elif namespace is not self.options:
|
|
msg = "can only pass in parser.options"
|
|
raise ValueError(msg)
|
|
self._fix_defaults()
|
|
self.options._src = "cli" # noqa: SLF001
|
|
try:
|
|
namespace.env = self.env
|
|
return super().parse_known_args(args, namespace=namespace)
|
|
finally:
|
|
self.options._src = None # noqa: SLF001
|
|
|
|
|
|
class HelpFormatter(ArgumentDefaultsHelpFormatter):
|
|
def __init__(self, prog) -> None:
|
|
super().__init__(prog, max_help_position=32, width=240)
|
|
|
|
def _get_help_string(self, action):
|
|
text = super()._get_help_string(action)
|
|
if hasattr(action, "default_source"):
|
|
default = " (default: %(default)s)"
|
|
if text.endswith(default):
|
|
text = f"{text[: -len(default)]} (default: %(default)s -> from %(default_source)s)"
|
|
return text
|
|
|
|
|
|
__all__ = [
|
|
"HelpFormatter",
|
|
"VirtualEnvConfigParser",
|
|
"VirtualEnvOptions",
|
|
]
|