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-rw-r--r--lib/spack/external/argparse.py89
1 files changed, 36 insertions, 53 deletions
diff --git a/lib/spack/external/argparse.py b/lib/spack/external/argparse.py
index ec9a9ee738..afce7fb3dc 100644
--- a/lib/spack/external/argparse.py
+++ b/lib/spack/external/argparse.py
@@ -1,25 +1,6 @@
-# argparse is (c) 2006-2009 Steven J. Bethard <steven.bethard@gmail.com>.
-#
-# The argparse module was contributed to Python as of Python 2.7 and thus
-# was licensed under the Python license. Same license applies to all files in
-# the argparse package project.
-#
-# For details about the Python License, please see doc/Python-License.txt.
-#
-# History
-# -------
-#
-# Before (and including) argparse 1.1, the argparse package was licensed under
-# Apache License v2.0.
-#
-# After argparse 1.1, all project files from the argparse project were deleted
-# due to license compatibility issues between Apache License 2.0 and GNU GPL v2.
-#
-# The project repository then had a clean start with some files taken from
-# Python 2.7.1, so definitely all files are under Python License now.
-#
# Author: Steven J. Bethard <steven.bethard@gmail.com>.
-#
+# Maintainer: Thomas Waldmann <tw@waldmann-edv.de>
+
"""Command-line parsing library
This module is an optparse-inspired command-line parsing library that:
@@ -81,7 +62,12 @@ considered public as object names -- the API of the formatter objects is
still considered an implementation detail.)
"""
-__version__ = '1.2.1'
+__version__ = '1.4.0' # we use our own version number independant of the
+ # one in stdlib and we release this on pypi.
+
+__external_lib__ = True # to make sure the tests really test THIS lib,
+ # not the builtin one in Python stdlib
+
__all__ = [
'ArgumentParser',
'ArgumentError',
@@ -1073,7 +1059,7 @@ class _SubParsersAction(Action):
metavar += ' (%s)' % ', '.join(aliases)
sup = super(_SubParsersAction._ChoicesPseudoAction, self)
sup.__init__(option_strings=[], dest=dest, help=help,
- metavar=metavar)
+ metavar=metavar)
def __init__(self,
option_strings,
@@ -1134,9 +1120,8 @@ class _SubParsersAction(Action):
try:
parser = self._name_parser_map[parser_name]
except KeyError:
- args = {'parser_name': parser_name,
- 'choices': ', '.join(self._name_parser_map)}
- msg = _('unknown parser %(parser_name)r (choices: %(choices)s)') % args
+ tup = parser_name, ', '.join(self._name_parser_map)
+ msg = _('unknown parser %r (choices: %s)' % tup)
raise ArgumentError(self, msg)
# parse all the remaining options into the namespace
@@ -1180,11 +1165,16 @@ class FileType(object):
msg = _('argument "-" with mode %r' % self._mode)
raise ValueError(msg)
- # all other arguments are used as file names
- if self._bufsize:
- return open(string, self._mode, self._bufsize)
- else:
- return open(string, self._mode)
+ try:
+ # all other arguments are used as file names
+ if self._bufsize:
+ return open(string, self._mode, self._bufsize)
+ else:
+ return open(string, self._mode)
+ except IOError:
+ err = _sys.exc_info()[1]
+ message = _("can't open '%s': %s")
+ raise ArgumentTypeError(message % (string, err))
def __repr__(self):
args = [self._mode, self._bufsize]
@@ -1720,21 +1710,6 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
self._positionals._add_action(action)
return action
-
- def get_subparser(self, name):
- """Gets a subparser added with the supplied name.
- This is an extension to the standard argparse API.
- """
- subpasrsers_actions = [
- action for action in self._actions
- if isinstance(action, _SubParsersAction)]
- for action in subpasrsers_actions:
- for choice, subparser in action.choices.items():
- if choice == name:
- return subparser
- return None
-
-
def _get_optional_actions(self):
return [action
for action in self._actions
@@ -1769,10 +1744,7 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
if action.dest is not SUPPRESS:
if not hasattr(namespace, action.dest):
if action.default is not SUPPRESS:
- default = action.default
- if isinstance(action.default, basestring):
- default = self._get_value(action, default)
- setattr(namespace, action.dest, default)
+ setattr(namespace, action.dest, action.default)
# add any parser defaults that aren't present
for dest in self._defaults:
@@ -2000,12 +1972,23 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
if positionals:
self.error(_('too few arguments'))
- # make sure all required actions were present
+ # make sure all required actions were present, and convert defaults.
for action in self._actions:
- if action.required:
- if action not in seen_actions:
+ if action not in seen_actions:
+ if action.required:
name = _get_action_name(action)
self.error(_('argument %s is required') % name)
+ else:
+ # Convert action default now instead of doing it before
+ # parsing arguments to avoid calling convert functions
+ # twice (which may fail) if the argument was given, but
+ # only if it was defined already in the namespace
+ if (action.default is not None and
+ isinstance(action.default, basestring) and
+ hasattr(namespace, action.dest) and
+ action.default is getattr(namespace, action.dest)):
+ setattr(namespace, action.dest,
+ self._get_value(action, action.default))
# make sure all required groups had one option present
for group in self._mutually_exclusive_groups: