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Diffstat (limited to 'venv/lib/python3.11/site-packages/click/exceptions.py')
| -rw-r--r-- | venv/lib/python3.11/site-packages/click/exceptions.py | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/venv/lib/python3.11/site-packages/click/exceptions.py b/venv/lib/python3.11/site-packages/click/exceptions.py new file mode 100644 index 0000000..fe68a36 --- /dev/null +++ b/venv/lib/python3.11/site-packages/click/exceptions.py @@ -0,0 +1,288 @@ +import typing as t +from gettext import gettext as _ +from gettext import ngettext + +from ._compat import get_text_stderr +from .utils import echo +from .utils import format_filename + +if t.TYPE_CHECKING: + from .core import Command + from .core import Context + from .core import Parameter + + +def _join_param_hints( + param_hint: t.Optional[t.Union[t.Sequence[str], str]] +) -> t.Optional[str]: + if param_hint is not None and not isinstance(param_hint, str): + return " / ".join(repr(x) for x in param_hint) + + return param_hint + + +class ClickException(Exception): + """An exception that Click can handle and show to the user.""" + + #: The exit code for this exception. + exit_code = 1 + + def __init__(self, message: str) -> None: + super().__init__(message) + self.message = message + + def format_message(self) -> str: + return self.message + + def __str__(self) -> str: + return self.message + + def show(self, file: t.Optional[t.IO[t.Any]] = None) -> None: + if file is None: + file = get_text_stderr() + + echo(_("Error: {message}").format(message=self.format_message()), file=file) + + +class UsageError(ClickException): + """An internal exception that signals a usage error. This typically + aborts any further handling. + + :param message: the error message to display. + :param ctx: optionally the context that caused this error. Click will + fill in the context automatically in some situations. + """ + + exit_code = 2 + + def __init__(self, message: str, ctx: t.Optional["Context"] = None) -> None: + super().__init__(message) + self.ctx = ctx + self.cmd: t.Optional["Command"] = self.ctx.command if self.ctx else None + + def show(self, file: t.Optional[t.IO[t.Any]] = None) -> None: + if file is None: + file = get_text_stderr() + color = None + hint = "" + if ( + self.ctx is not None + and self.ctx.command.get_help_option(self.ctx) is not None + ): + hint = _("Try '{command} {option}' for help.").format( + command=self.ctx.command_path, option=self.ctx.help_option_names[0] + ) + hint = f"{hint}\n" + if self.ctx is not None: + color = self.ctx.color + echo(f"{self.ctx.get_usage()}\n{hint}", file=file, color=color) + echo( + _("Error: {message}").format(message=self.format_message()), + file=file, + color=color, + ) + + +class BadParameter(UsageError): + """An exception that formats out a standardized error message for a + bad parameter. This is useful when thrown from a callback or type as + Click will attach contextual information to it (for instance, which + parameter it is). + + .. versionadded:: 2.0 + + :param param: the parameter object that caused this error. This can + be left out, and Click will attach this info itself + if possible. + :param param_hint: a string that shows up as parameter name. This + can be used as alternative to `param` in cases + where custom validation should happen. If it is + a string it's used as such, if it's a list then + each item is quoted and separated. + """ + + def __init__( + self, + message: str, + ctx: t.Optional["Context"] = None, + param: t.Optional["Parameter"] = None, + param_hint: t.Optional[str] = None, + ) -> None: + super().__init__(message, ctx) + self.param = param + self.param_hint = param_hint + + def format_message(self) -> str: + if self.param_hint is not None: + param_hint = self.param_hint + elif self.param is not None: + param_hint = self.param.get_error_hint(self.ctx) # type: ignore + else: + return _("Invalid value: {message}").format(message=self.message) + + return _("Invalid value for {param_hint}: {message}").format( + param_hint=_join_param_hints(param_hint), message=self.message + ) + + +class MissingParameter(BadParameter): + """Raised if click required an option or argument but it was not + provided when invoking the script. + + .. versionadded:: 4.0 + + :param param_type: a string that indicates the type of the parameter. + The default is to inherit the parameter type from + the given `param`. Valid values are ``'parameter'``, + ``'option'`` or ``'argument'``. + """ + + def __init__( + self, + message: t.Optional[str] = None, + ctx: t.Optional["Context"] = None, + param: t.Optional["Parameter"] = None, + param_hint: t.Optional[str] = None, + param_type: t.Optional[str] = None, + ) -> None: + super().__init__(message or "", ctx, param, param_hint) + self.param_type = param_type + + def format_message(self) -> str: + if self.param_hint is not None: + param_hint: t.Optional[str] = self.param_hint + elif self.param is not None: + param_hint = self.param.get_error_hint(self.ctx) # type: ignore + else: + param_hint = None + + param_hint = _join_param_hints(param_hint) + param_hint = f" {param_hint}" if param_hint else "" + + param_type = self.param_type + if param_type is None and self.param is not None: + param_type = self.param.param_type_name + + msg = self.message + if self.param is not None: + msg_extra = self.param.type.get_missing_message(self.param) + if msg_extra: + if msg: + msg += f". {msg_extra}" + else: + msg = msg_extra + + msg = f" {msg}" if msg else "" + + # Translate param_type for known types. + if param_type == "argument": + missing = _("Missing argument") + elif param_type == "option": + missing = _("Missing option") + elif param_type == "parameter": + missing = _("Missing parameter") + else: + missing = _("Missing {param_type}").format(param_type=param_type) + + return f"{missing}{param_hint}.{msg}" + + def __str__(self) -> str: + if not self.message: + param_name = self.param.name if self.param else None + return _("Missing parameter: {param_name}").format(param_name=param_name) + else: + return self.message + + +class NoSuchOption(UsageError): + """Raised if click attempted to handle an option that does not + exist. + + .. versionadded:: 4.0 + """ + + def __init__( + self, + option_name: str, + message: t.Optional[str] = None, + possibilities: t.Optional[t.Sequence[str]] = None, + ctx: t.Optional["Context"] = None, + ) -> None: + if message is None: + message = _("No such option: {name}").format(name=option_name) + + super().__init__(message, ctx) + self.option_name = option_name + self.possibilities = possibilities + + def format_message(self) -> str: + if not self.possibilities: + return self.message + + possibility_str = ", ".join(sorted(self.possibilities)) + suggest = ngettext( + "Did you mean {possibility}?", + "(Possible options: {possibilities})", + len(self.possibilities), + ).format(possibility=possibility_str, possibilities=possibility_str) + return f"{self.message} {suggest}" + + +class BadOptionUsage(UsageError): + """Raised if an option is generally supplied but the use of the option + was incorrect. This is for instance raised if the number of arguments + for an option is not correct. + + .. versionadded:: 4.0 + + :param option_name: the name of the option being used incorrectly. + """ + + def __init__( + self, option_name: str, message: str, ctx: t.Optional["Context"] = None + ) -> None: + super().__init__(message, ctx) + self.option_name = option_name + + +class BadArgumentUsage(UsageError): + """Raised if an argument is generally supplied but the use of the argument + was incorrect. This is for instance raised if the number of values + for an argument is not correct. + + .. versionadded:: 6.0 + """ + + +class FileError(ClickException): + """Raised if a file cannot be opened.""" + + def __init__(self, filename: str, hint: t.Optional[str] = None) -> None: + if hint is None: + hint = _("unknown error") + + super().__init__(hint) + self.ui_filename: str = format_filename(filename) + self.filename = filename + + def format_message(self) -> str: + return _("Could not open file {filename!r}: {message}").format( + filename=self.ui_filename, message=self.message + ) + + +class Abort(RuntimeError): + """An internal signalling exception that signals Click to abort.""" + + +class Exit(RuntimeError): + """An exception that indicates that the application should exit with some + status code. + + :param code: the status code to exit with. + """ + + __slots__ = ("exit_code",) + + def __init__(self, code: int = 0) -> None: + self.exit_code: int = code |