forked from bton/matekasse
552 lines
21 KiB
Python
552 lines
21 KiB
Python
|
import argparse
|
||
|
|
import os
|
||
|
|
import sys
|
||
|
|
import warnings
|
||
|
|
from gettext import gettext
|
||
|
|
from typing import Any
|
||
|
|
from typing import Callable
|
||
|
|
from typing import cast
|
||
|
|
from typing import Dict
|
||
|
|
from typing import List
|
||
|
|
from typing import Mapping
|
||
|
|
from typing import NoReturn
|
||
|
|
from typing import Optional
|
||
|
|
from typing import Sequence
|
||
|
|
from typing import Tuple
|
||
|
|
from typing import TYPE_CHECKING
|
||
|
|
from typing import Union
|
||
|
|
|
||
|
|
import _pytest._io
|
||
|
|
from _pytest.compat import final
|
||
|
|
from _pytest.config.exceptions import UsageError
|
||
|
|
from _pytest.deprecated import ARGUMENT_PERCENT_DEFAULT
|
||
|
|
from _pytest.deprecated import ARGUMENT_TYPE_STR
|
||
|
|
from _pytest.deprecated import ARGUMENT_TYPE_STR_CHOICE
|
||
|
|
from _pytest.deprecated import check_ispytest
|
||
|
|
|
||
|
|
if TYPE_CHECKING:
|
||
|
|
from typing_extensions import Literal
|
||
|
|
|
||
|
|
FILE_OR_DIR = "file_or_dir"
|
||
|
|
|
||
|
|
|
||
|
|
@final
|
||
|
|
class Parser:
|
||
|
|
"""Parser for command line arguments and ini-file values.
|
||
|
|
|
||
|
|
:ivar extra_info: Dict of generic param -> value to display in case
|
||
|
|
there's an error processing the command line arguments.
|
||
|
|
"""
|
||
|
|
|
||
|
|
prog: Optional[str] = None
|
||
|
|
|
||
|
|
def __init__(
|
||
|
|
self,
|
||
|
|
usage: Optional[str] = None,
|
||
|
|
processopt: Optional[Callable[["Argument"], None]] = None,
|
||
|
|
*,
|
||
|
|
_ispytest: bool = False,
|
||
|
|
) -> None:
|
||
|
|
check_ispytest(_ispytest)
|
||
|
|
self._anonymous = OptionGroup("Custom options", parser=self, _ispytest=True)
|
||
|
|
self._groups: List[OptionGroup] = []
|
||
|
|
self._processopt = processopt
|
||
|
|
self._usage = usage
|
||
|
|
self._inidict: Dict[str, Tuple[str, Optional[str], Any]] = {}
|
||
|
|
self._ininames: List[str] = []
|
||
|
|
self.extra_info: Dict[str, Any] = {}
|
||
|
|
|
||
|
|
def processoption(self, option: "Argument") -> None:
|
||
|
|
if self._processopt:
|
||
|
|
if option.dest:
|
||
|
|
self._processopt(option)
|
||
|
|
|
||
|
|
def getgroup(
|
||
|
|
self, name: str, description: str = "", after: Optional[str] = None
|
||
|
|
) -> "OptionGroup":
|
||
|
|
"""Get (or create) a named option Group.
|
||
|
|
|
||
|
|
:param name: Name of the option group.
|
||
|
|
:param description: Long description for --help output.
|
||
|
|
:param after: Name of another group, used for ordering --help output.
|
||
|
|
:returns: The option group.
|
||
|
|
|
||
|
|
The returned group object has an ``addoption`` method with the same
|
||
|
|
signature as :func:`parser.addoption <pytest.Parser.addoption>` but
|
||
|
|
will be shown in the respective group in the output of
|
||
|
|
``pytest --help``.
|
||
|
|
"""
|
||
|
|
for group in self._groups:
|
||
|
|
if group.name == name:
|
||
|
|
return group
|
||
|
|
group = OptionGroup(name, description, parser=self, _ispytest=True)
|
||
|
|
i = 0
|
||
|
|
for i, grp in enumerate(self._groups):
|
||
|
|
if grp.name == after:
|
||
|
|
break
|
||
|
|
self._groups.insert(i + 1, group)
|
||
|
|
return group
|
||
|
|
|
||
|
|
def addoption(self, *opts: str, **attrs: Any) -> None:
|
||
|
|
"""Register a command line option.
|
||
|
|
|
||
|
|
:param opts:
|
||
|
|
Option names, can be short or long options.
|
||
|
|
:param attrs:
|
||
|
|
Same attributes as the argparse library's :py:func:`add_argument()
|
||
|
|
<argparse.ArgumentParser.add_argument>` function accepts.
|
||
|
|
|
||
|
|
After command line parsing, options are available on the pytest config
|
||
|
|
object via ``config.option.NAME`` where ``NAME`` is usually set
|
||
|
|
by passing a ``dest`` attribute, for example
|
||
|
|
``addoption("--long", dest="NAME", ...)``.
|
||
|
|
"""
|
||
|
|
self._anonymous.addoption(*opts, **attrs)
|
||
|
|
|
||
|
|
def parse(
|
||
|
|
self,
|
||
|
|
args: Sequence[Union[str, "os.PathLike[str]"]],
|
||
|
|
namespace: Optional[argparse.Namespace] = None,
|
||
|
|
) -> argparse.Namespace:
|
||
|
|
from _pytest._argcomplete import try_argcomplete
|
||
|
|
|
||
|
|
self.optparser = self._getparser()
|
||
|
|
try_argcomplete(self.optparser)
|
||
|
|
strargs = [os.fspath(x) for x in args]
|
||
|
|
return self.optparser.parse_args(strargs, namespace=namespace)
|
||
|
|
|
||
|
|
def _getparser(self) -> "MyOptionParser":
|
||
|
|
from _pytest._argcomplete import filescompleter
|
||
|
|
|
||
|
|
optparser = MyOptionParser(self, self.extra_info, prog=self.prog)
|
||
|
|
groups = self._groups + [self._anonymous]
|
||
|
|
for group in groups:
|
||
|
|
if group.options:
|
||
|
|
desc = group.description or group.name
|
||
|
|
arggroup = optparser.add_argument_group(desc)
|
||
|
|
for option in group.options:
|
||
|
|
n = option.names()
|
||
|
|
a = option.attrs()
|
||
|
|
arggroup.add_argument(*n, **a)
|
||
|
|
file_or_dir_arg = optparser.add_argument(FILE_OR_DIR, nargs="*")
|
||
|
|
# bash like autocompletion for dirs (appending '/')
|
||
|
|
# Type ignored because typeshed doesn't know about argcomplete.
|
||
|
|
file_or_dir_arg.completer = filescompleter # type: ignore
|
||
|
|
return optparser
|
||
|
|
|
||
|
|
def parse_setoption(
|
||
|
|
self,
|
||
|
|
args: Sequence[Union[str, "os.PathLike[str]"]],
|
||
|
|
option: argparse.Namespace,
|
||
|
|
namespace: Optional[argparse.Namespace] = None,
|
||
|
|
) -> List[str]:
|
||
|
|
parsedoption = self.parse(args, namespace=namespace)
|
||
|
|
for name, value in parsedoption.__dict__.items():
|
||
|
|
setattr(option, name, value)
|
||
|
|
return cast(List[str], getattr(parsedoption, FILE_OR_DIR))
|
||
|
|
|
||
|
|
def parse_known_args(
|
||
|
|
self,
|
||
|
|
args: Sequence[Union[str, "os.PathLike[str]"]],
|
||
|
|
namespace: Optional[argparse.Namespace] = None,
|
||
|
|
) -> argparse.Namespace:
|
||
|
|
"""Parse the known arguments at this point.
|
||
|
|
|
||
|
|
:returns: An argparse namespace object.
|
||
|
|
"""
|
||
|
|
return self.parse_known_and_unknown_args(args, namespace=namespace)[0]
|
||
|
|
|
||
|
|
def parse_known_and_unknown_args(
|
||
|
|
self,
|
||
|
|
args: Sequence[Union[str, "os.PathLike[str]"]],
|
||
|
|
namespace: Optional[argparse.Namespace] = None,
|
||
|
|
) -> Tuple[argparse.Namespace, List[str]]:
|
||
|
|
"""Parse the known arguments at this point, and also return the
|
||
|
|
remaining unknown arguments.
|
||
|
|
|
||
|
|
:returns:
|
||
|
|
A tuple containing an argparse namespace object for the known
|
||
|
|
arguments, and a list of the unknown arguments.
|
||
|
|
"""
|
||
|
|
optparser = self._getparser()
|
||
|
|
strargs = [os.fspath(x) for x in args]
|
||
|
|
return optparser.parse_known_args(strargs, namespace=namespace)
|
||
|
|
|
||
|
|
def addini(
|
||
|
|
self,
|
||
|
|
name: str,
|
||
|
|
help: str,
|
||
|
|
type: Optional[
|
||
|
|
"Literal['string', 'paths', 'pathlist', 'args', 'linelist', 'bool']"
|
||
|
|
] = None,
|
||
|
|
default: Any = None,
|
||
|
|
) -> None:
|
||
|
|
"""Register an ini-file option.
|
||
|
|
|
||
|
|
:param name:
|
||
|
|
Name of the ini-variable.
|
||
|
|
:param type:
|
||
|
|
Type of the variable. Can be:
|
||
|
|
|
||
|
|
* ``string``: a string
|
||
|
|
* ``bool``: a boolean
|
||
|
|
* ``args``: a list of strings, separated as in a shell
|
||
|
|
* ``linelist``: a list of strings, separated by line breaks
|
||
|
|
* ``paths``: a list of :class:`pathlib.Path`, separated as in a shell
|
||
|
|
* ``pathlist``: a list of ``py.path``, separated as in a shell
|
||
|
|
|
||
|
|
.. versionadded:: 7.0
|
||
|
|
The ``paths`` variable type.
|
||
|
|
|
||
|
|
Defaults to ``string`` if ``None`` or not passed.
|
||
|
|
:param default:
|
||
|
|
Default value if no ini-file option exists but is queried.
|
||
|
|
|
||
|
|
The value of ini-variables can be retrieved via a call to
|
||
|
|
:py:func:`config.getini(name) <pytest.Config.getini>`.
|
||
|
|
"""
|
||
|
|
assert type in (None, "string", "paths", "pathlist", "args", "linelist", "bool")
|
||
|
|
self._inidict[name] = (help, type, default)
|
||
|
|
self._ininames.append(name)
|
||
|
|
|
||
|
|
|
||
|
|
class ArgumentError(Exception):
|
||
|
|
"""Raised if an Argument instance is created with invalid or
|
||
|
|
inconsistent arguments."""
|
||
|
|
|
||
|
|
def __init__(self, msg: str, option: Union["Argument", str]) -> None:
|
||
|
|
self.msg = msg
|
||
|
|
self.option_id = str(option)
|
||
|
|
|
||
|
|
def __str__(self) -> str:
|
||
|
|
if self.option_id:
|
||
|
|
return f"option {self.option_id}: {self.msg}"
|
||
|
|
else:
|
||
|
|
return self.msg
|
||
|
|
|
||
|
|
|
||
|
|
class Argument:
|
||
|
|
"""Class that mimics the necessary behaviour of optparse.Option.
|
||
|
|
|
||
|
|
It's currently a least effort implementation and ignoring choices
|
||
|
|
and integer prefixes.
|
||
|
|
|
||
|
|
https://docs.python.org/3/library/optparse.html#optparse-standard-option-types
|
||
|
|
"""
|
||
|
|
|
||
|
|
_typ_map = {"int": int, "string": str, "float": float, "complex": complex}
|
||
|
|
|
||
|
|
def __init__(self, *names: str, **attrs: Any) -> None:
|
||
|
|
"""Store params in private vars for use in add_argument."""
|
||
|
|
self._attrs = attrs
|
||
|
|
self._short_opts: List[str] = []
|
||
|
|
self._long_opts: List[str] = []
|
||
|
|
if "%default" in (attrs.get("help") or ""):
|
||
|
|
warnings.warn(ARGUMENT_PERCENT_DEFAULT, stacklevel=3)
|
||
|
|
try:
|
||
|
|
typ = attrs["type"]
|
||
|
|
except KeyError:
|
||
|
|
pass
|
||
|
|
else:
|
||
|
|
# This might raise a keyerror as well, don't want to catch that.
|
||
|
|
if isinstance(typ, str):
|
||
|
|
if typ == "choice":
|
||
|
|
warnings.warn(
|
||
|
|
ARGUMENT_TYPE_STR_CHOICE.format(typ=typ, names=names),
|
||
|
|
stacklevel=4,
|
||
|
|
)
|
||
|
|
# argparse expects a type here take it from
|
||
|
|
# the type of the first element
|
||
|
|
attrs["type"] = type(attrs["choices"][0])
|
||
|
|
else:
|
||
|
|
warnings.warn(
|
||
|
|
ARGUMENT_TYPE_STR.format(typ=typ, names=names), stacklevel=4
|
||
|
|
)
|
||
|
|
attrs["type"] = Argument._typ_map[typ]
|
||
|
|
# Used in test_parseopt -> test_parse_defaultgetter.
|
||
|
|
self.type = attrs["type"]
|
||
|
|
else:
|
||
|
|
self.type = typ
|
||
|
|
try:
|
||
|
|
# Attribute existence is tested in Config._processopt.
|
||
|
|
self.default = attrs["default"]
|
||
|
|
except KeyError:
|
||
|
|
pass
|
||
|
|
self._set_opt_strings(names)
|
||
|
|
dest: Optional[str] = attrs.get("dest")
|
||
|
|
if dest:
|
||
|
|
self.dest = dest
|
||
|
|
elif self._long_opts:
|
||
|
|
self.dest = self._long_opts[0][2:].replace("-", "_")
|
||
|
|
else:
|
||
|
|
try:
|
||
|
|
self.dest = self._short_opts[0][1:]
|
||
|
|
except IndexError as e:
|
||
|
|
self.dest = "???" # Needed for the error repr.
|
||
|
|
raise ArgumentError("need a long or short option", self) from e
|
||
|
|
|
||
|
|
def names(self) -> List[str]:
|
||
|
|
return self._short_opts + self._long_opts
|
||
|
|
|
||
|
|
def attrs(self) -> Mapping[str, Any]:
|
||
|
|
# Update any attributes set by processopt.
|
||
|
|
attrs = "default dest help".split()
|
||
|
|
attrs.append(self.dest)
|
||
|
|
for attr in attrs:
|
||
|
|
try:
|
||
|
|
self._attrs[attr] = getattr(self, attr)
|
||
|
|
except AttributeError:
|
||
|
|
pass
|
||
|
|
if self._attrs.get("help"):
|
||
|
|
a = self._attrs["help"]
|
||
|
|
a = a.replace("%default", "%(default)s")
|
||
|
|
# a = a.replace('%prog', '%(prog)s')
|
||
|
|
self._attrs["help"] = a
|
||
|
|
return self._attrs
|
||
|
|
|
||
|
|
def _set_opt_strings(self, opts: Sequence[str]) -> None:
|
||
|
|
"""Directly from optparse.
|
||
|
|
|
||
|
|
Might not be necessary as this is passed to argparse later on.
|
||
|
|
"""
|
||
|
|
for opt in opts:
|
||
|
|
if len(opt) < 2:
|
||
|
|
raise ArgumentError(
|
||
|
|
"invalid option string %r: "
|
||
|
|
"must be at least two characters long" % opt,
|
||
|
|
self,
|
||
|
|
)
|
||
|
|
elif len(opt) == 2:
|
||
|
|
if not (opt[0] == "-" and opt[1] != "-"):
|
||
|
|
raise ArgumentError(
|
||
|
|
"invalid short option string %r: "
|
||
|
|
"must be of the form -x, (x any non-dash char)" % opt,
|
||
|
|
self,
|
||
|
|
)
|
||
|
|
self._short_opts.append(opt)
|
||
|
|
else:
|
||
|
|
if not (opt[0:2] == "--" and opt[2] != "-"):
|
||
|
|
raise ArgumentError(
|
||
|
|
"invalid long option string %r: "
|
||
|
|
"must start with --, followed by non-dash" % opt,
|
||
|
|
self,
|
||
|
|
)
|
||
|
|
self._long_opts.append(opt)
|
||
|
|
|
||
|
|
def __repr__(self) -> str:
|
||
|
|
args: List[str] = []
|
||
|
|
if self._short_opts:
|
||
|
|
args += ["_short_opts: " + repr(self._short_opts)]
|
||
|
|
if self._long_opts:
|
||
|
|
args += ["_long_opts: " + repr(self._long_opts)]
|
||
|
|
args += ["dest: " + repr(self.dest)]
|
||
|
|
if hasattr(self, "type"):
|
||
|
|
args += ["type: " + repr(self.type)]
|
||
|
|
if hasattr(self, "default"):
|
||
|
|
args += ["default: " + repr(self.default)]
|
||
|
|
return "Argument({})".format(", ".join(args))
|
||
|
|
|
||
|
|
|
||
|
|
class OptionGroup:
|
||
|
|
"""A group of options shown in its own section."""
|
||
|
|
|
||
|
|
def __init__(
|
||
|
|
self,
|
||
|
|
name: str,
|
||
|
|
description: str = "",
|
||
|
|
parser: Optional[Parser] = None,
|
||
|
|
*,
|
||
|
|
_ispytest: bool = False,
|
||
|
|
) -> None:
|
||
|
|
check_ispytest(_ispytest)
|
||
|
|
self.name = name
|
||
|
|
self.description = description
|
||
|
|
self.options: List[Argument] = []
|
||
|
|
self.parser = parser
|
||
|
|
|
||
|
|
def addoption(self, *opts: str, **attrs: Any) -> None:
|
||
|
|
"""Add an option to this group.
|
||
|
|
|
||
|
|
If a shortened version of a long option is specified, it will
|
||
|
|
be suppressed in the help. ``addoption('--twowords', '--two-words')``
|
||
|
|
results in help showing ``--two-words`` only, but ``--twowords`` gets
|
||
|
|
accepted **and** the automatic destination is in ``args.twowords``.
|
||
|
|
|
||
|
|
:param opts:
|
||
|
|
Option names, can be short or long options.
|
||
|
|
:param attrs:
|
||
|
|
Same attributes as the argparse library's :py:func:`add_argument()
|
||
|
|
<argparse.ArgumentParser.add_argument>` function accepts.
|
||
|
|
"""
|
||
|
|
conflict = set(opts).intersection(
|
||
|
|
name for opt in self.options for name in opt.names()
|
||
|
|
)
|
||
|
|
if conflict:
|
||
|
|
raise ValueError("option names %s already added" % conflict)
|
||
|
|
option = Argument(*opts, **attrs)
|
||
|
|
self._addoption_instance(option, shortupper=False)
|
||
|
|
|
||
|
|
def _addoption(self, *opts: str, **attrs: Any) -> None:
|
||
|
|
option = Argument(*opts, **attrs)
|
||
|
|
self._addoption_instance(option, shortupper=True)
|
||
|
|
|
||
|
|
def _addoption_instance(self, option: "Argument", shortupper: bool = False) -> None:
|
||
|
|
if not shortupper:
|
||
|
|
for opt in option._short_opts:
|
||
|
|
if opt[0] == "-" and opt[1].islower():
|
||
|
|
raise ValueError("lowercase shortoptions reserved")
|
||
|
|
if self.parser:
|
||
|
|
self.parser.processoption(option)
|
||
|
|
self.options.append(option)
|
||
|
|
|
||
|
|
|
||
|
|
class MyOptionParser(argparse.ArgumentParser):
|
||
|
|
def __init__(
|
||
|
|
self,
|
||
|
|
parser: Parser,
|
||
|
|
extra_info: Optional[Dict[str, Any]] = None,
|
||
|
|
prog: Optional[str] = None,
|
||
|
|
) -> None:
|
||
|
|
self._parser = parser
|
||
|
|
super().__init__(
|
||
|
|
prog=prog,
|
||
|
|
usage=parser._usage,
|
||
|
|
add_help=False,
|
||
|
|
formatter_class=DropShorterLongHelpFormatter,
|
||
|
|
allow_abbrev=False,
|
||
|
|
)
|
||
|
|
# extra_info is a dict of (param -> value) to display if there's
|
||
|
|
# an usage error to provide more contextual information to the user.
|
||
|
|
self.extra_info = extra_info if extra_info else {}
|
||
|
|
|
||
|
|
def error(self, message: str) -> NoReturn:
|
||
|
|
"""Transform argparse error message into UsageError."""
|
||
|
|
msg = f"{self.prog}: error: {message}"
|
||
|
|
|
||
|
|
if hasattr(self._parser, "_config_source_hint"):
|
||
|
|
# Type ignored because the attribute is set dynamically.
|
||
|
|
msg = f"{msg} ({self._parser._config_source_hint})" # type: ignore
|
||
|
|
|
||
|
|
raise UsageError(self.format_usage() + msg)
|
||
|
|
|
||
|
|
# Type ignored because typeshed has a very complex type in the superclass.
|
||
|
|
def parse_args( # type: ignore
|
||
|
|
self,
|
||
|
|
args: Optional[Sequence[str]] = None,
|
||
|
|
namespace: Optional[argparse.Namespace] = None,
|
||
|
|
) -> argparse.Namespace:
|
||
|
|
"""Allow splitting of positional arguments."""
|
||
|
|
parsed, unrecognized = self.parse_known_args(args, namespace)
|
||
|
|
if unrecognized:
|
||
|
|
for arg in unrecognized:
|
||
|
|
if arg and arg[0] == "-":
|
||
|
|
lines = ["unrecognized arguments: %s" % (" ".join(unrecognized))]
|
||
|
|
for k, v in sorted(self.extra_info.items()):
|
||
|
|
lines.append(f" {k}: {v}")
|
||
|
|
self.error("\n".join(lines))
|
||
|
|
getattr(parsed, FILE_OR_DIR).extend(unrecognized)
|
||
|
|
return parsed
|
||
|
|
|
||
|
|
if sys.version_info[:2] < (3, 9): # pragma: no cover
|
||
|
|
# Backport of https://github.com/python/cpython/pull/14316 so we can
|
||
|
|
# disable long --argument abbreviations without breaking short flags.
|
||
|
|
def _parse_optional(
|
||
|
|
self, arg_string: str
|
||
|
|
) -> Optional[Tuple[Optional[argparse.Action], str, Optional[str]]]:
|
||
|
|
if not arg_string:
|
||
|
|
return None
|
||
|
|
if not arg_string[0] in self.prefix_chars:
|
||
|
|
return None
|
||
|
|
if arg_string in self._option_string_actions:
|
||
|
|
action = self._option_string_actions[arg_string]
|
||
|
|
return action, arg_string, None
|
||
|
|
if len(arg_string) == 1:
|
||
|
|
return None
|
||
|
|
if "=" in arg_string:
|
||
|
|
option_string, explicit_arg = arg_string.split("=", 1)
|
||
|
|
if option_string in self._option_string_actions:
|
||
|
|
action = self._option_string_actions[option_string]
|
||
|
|
return action, option_string, explicit_arg
|
||
|
|
if self.allow_abbrev or not arg_string.startswith("--"):
|
||
|
|
option_tuples = self._get_option_tuples(arg_string)
|
||
|
|
if len(option_tuples) > 1:
|
||
|
|
msg = gettext(
|
||
|
|
"ambiguous option: %(option)s could match %(matches)s"
|
||
|
|
)
|
||
|
|
options = ", ".join(option for _, option, _ in option_tuples)
|
||
|
|
self.error(msg % {"option": arg_string, "matches": options})
|
||
|
|
elif len(option_tuples) == 1:
|
||
|
|
(option_tuple,) = option_tuples
|
||
|
|
return option_tuple
|
||
|
|
if self._negative_number_matcher.match(arg_string):
|
||
|
|
if not self._has_negative_number_optionals:
|
||
|
|
return None
|
||
|
|
if " " in arg_string:
|
||
|
|
return None
|
||
|
|
return None, arg_string, None
|
||
|
|
|
||
|
|
|
||
|
|
class DropShorterLongHelpFormatter(argparse.HelpFormatter):
|
||
|
|
"""Shorten help for long options that differ only in extra hyphens.
|
||
|
|
|
||
|
|
- Collapse **long** options that are the same except for extra hyphens.
|
||
|
|
- Shortcut if there are only two options and one of them is a short one.
|
||
|
|
- Cache result on the action object as this is called at least 2 times.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, *args: Any, **kwargs: Any) -> None:
|
||
|
|
# Use more accurate terminal width.
|
||
|
|
if "width" not in kwargs:
|
||
|
|
kwargs["width"] = _pytest._io.get_terminal_width()
|
||
|
|
super().__init__(*args, **kwargs)
|
||
|
|
|
||
|
|
def _format_action_invocation(self, action: argparse.Action) -> str:
|
||
|
|
orgstr = super()._format_action_invocation(action)
|
||
|
|
if orgstr and orgstr[0] != "-": # only optional arguments
|
||
|
|
return orgstr
|
||
|
|
res: Optional[str] = getattr(action, "_formatted_action_invocation", None)
|
||
|
|
if res:
|
||
|
|
return res
|
||
|
|
options = orgstr.split(", ")
|
||
|
|
if len(options) == 2 and (len(options[0]) == 2 or len(options[1]) == 2):
|
||
|
|
# a shortcut for '-h, --help' or '--abc', '-a'
|
||
|
|
action._formatted_action_invocation = orgstr # type: ignore
|
||
|
|
return orgstr
|
||
|
|
return_list = []
|
||
|
|
short_long: Dict[str, str] = {}
|
||
|
|
for option in options:
|
||
|
|
if len(option) == 2 or option[2] == " ":
|
||
|
|
continue
|
||
|
|
if not option.startswith("--"):
|
||
|
|
raise ArgumentError(
|
||
|
|
'long optional argument without "--": [%s]' % (option), option
|
||
|
|
)
|
||
|
|
xxoption = option[2:]
|
||
|
|
shortened = xxoption.replace("-", "")
|
||
|
|
if shortened not in short_long or len(short_long[shortened]) < len(
|
||
|
|
xxoption
|
||
|
|
):
|
||
|
|
short_long[shortened] = xxoption
|
||
|
|
# now short_long has been filled out to the longest with dashes
|
||
|
|
# **and** we keep the right option ordering from add_argument
|
||
|
|
for option in options:
|
||
|
|
if len(option) == 2 or option[2] == " ":
|
||
|
|
return_list.append(option)
|
||
|
|
if option[2:] == short_long.get(option.replace("-", "")):
|
||
|
|
return_list.append(option.replace(" ", "=", 1))
|
||
|
|
formatted_action_invocation = ", ".join(return_list)
|
||
|
|
action._formatted_action_invocation = formatted_action_invocation # type: ignore
|
||
|
|
return formatted_action_invocation
|
||
|
|
|
||
|
|
def _split_lines(self, text, width):
|
||
|
|
"""Wrap lines after splitting on original newlines.
|
||
|
|
|
||
|
|
This allows to have explicit line breaks in the help text.
|
||
|
|
"""
|
||
|
|
import textwrap
|
||
|
|
|
||
|
|
lines = []
|
||
|
|
for line in text.splitlines():
|
||
|
|
lines.extend(textwrap.wrap(line.strip(), width))
|
||
|
|
return lines
|