diff options
Diffstat (limited to 'python/click/exceptions.py')
| -rw-r--r-- | python/click/exceptions.py | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/python/click/exceptions.py b/python/click/exceptions.py deleted file mode 100644 index 6fa1765..0000000 --- a/python/click/exceptions.py +++ /dev/null @@ -1,235 +0,0 @@ -from ._compat import PY2, filename_to_ui, get_text_stderr -from .utils import echo - - -def _join_param_hints(param_hint): - if isinstance(param_hint, (tuple, list)): - return ' / '.join('"%s"' % 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): - ctor_msg = message - if PY2: - if ctor_msg is not None: - ctor_msg = ctor_msg.encode('utf-8') - Exception.__init__(self, ctor_msg) - self.message = message - - def format_message(self): - return self.message - - def __str__(self): - return self.message - - if PY2: - __unicode__ = __str__ - - def __str__(self): - return self.message.encode('utf-8') - - def show(self, file=None): - if file is None: - file = get_text_stderr() - echo('Error: %s' % 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, ctx=None): - ClickException.__init__(self, message) - self.ctx = ctx - self.cmd = self.ctx and self.ctx.command or None - - def show(self, file=None): - if file is None: - file = get_text_stderr() - color = None - hint = '' - if (self.cmd is not None and - self.cmd.get_help_option(self.ctx) is not None): - hint = ('Try "%s %s" for help.\n' - % (self.ctx.command_path, self.ctx.help_option_names[0])) - if self.ctx is not None: - color = self.ctx.color - echo(self.ctx.get_usage() + '\n%s' % hint, file=file, color=color) - echo('Error: %s' % 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, ctx=None, param=None, - param_hint=None): - UsageError.__init__(self, message, ctx) - self.param = param - self.param_hint = param_hint - - def format_message(self): - 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) - else: - return 'Invalid value: %s' % self.message - param_hint = _join_param_hints(param_hint) - - return 'Invalid value for %s: %s' % (param_hint, 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=None, ctx=None, param=None, - param_hint=None, param_type=None): - BadParameter.__init__(self, message, ctx, param, param_hint) - self.param_type = param_type - - def format_message(self): - 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) - else: - param_hint = None - param_hint = _join_param_hints(param_hint) - - 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 += '. ' + msg_extra - else: - msg = msg_extra - - return 'Missing %s%s%s%s' % ( - param_type, - param_hint and ' %s' % param_hint or '', - msg and '. ' or '.', - msg or '', - ) - - -class NoSuchOption(UsageError): - """Raised if click attempted to handle an option that does not - exist. - - .. versionadded:: 4.0 - """ - - def __init__(self, option_name, message=None, possibilities=None, - ctx=None): - if message is None: - message = 'no such option: %s' % option_name - UsageError.__init__(self, message, ctx) - self.option_name = option_name - self.possibilities = possibilities - - def format_message(self): - bits = [self.message] - if self.possibilities: - if len(self.possibilities) == 1: - bits.append('Did you mean %s?' % self.possibilities[0]) - else: - possibilities = sorted(self.possibilities) - bits.append('(Possible options: %s)' % ', '.join(possibilities)) - return ' '.join(bits) - - -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, message, ctx=None): - UsageError.__init__(self, 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 - """ - - def __init__(self, message, ctx=None): - UsageError.__init__(self, message, ctx) - - -class FileError(ClickException): - """Raised if a file cannot be opened.""" - - def __init__(self, filename, hint=None): - ui_filename = filename_to_ui(filename) - if hint is None: - hint = 'unknown error' - ClickException.__init__(self, hint) - self.ui_filename = ui_filename - self.filename = filename - - def format_message(self): - return 'Could not open file %s: %s' % (self.ui_filename, 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. - """ - def __init__(self, code=0): - self.exit_code = code |