152 lines
4.6 KiB
Python
Vendored
152 lines
4.6 KiB
Python
Vendored
# MIT License
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#
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# Copyright The SCons Foundation
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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"""Variable type for list Variables.
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A 'list' option may either be 'all', 'none' or a list of names
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separated by comma. After the option has been processed, the option
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value holds either the named list elements, all list elements or no
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list elements at all.
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Usage example::
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list_of_libs = Split('x11 gl qt ical')
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opts = Variables()
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opts.Add(
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ListVariable(
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'shared',
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help='libraries to build as shared libraries',
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default='all',
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elems=list_of_libs,
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)
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)
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...
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for lib in list_of_libs:
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if lib in env['shared']:
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env.SharedObject(...)
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else:
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env.Object(...)
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"""
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# Known Bug: This should behave like a Set-Type, but does not really,
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# since elements can occur twice.
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import collections
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from typing import Tuple, Callable
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import SCons.Util
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__all__ = ['ListVariable',]
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class _ListVariable(collections.UserList):
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def __init__(self, initlist=None, allowedElems=None):
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if initlist is None:
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initlist = []
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if allowedElems is None:
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allowedElems = []
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super().__init__([_f for _f in initlist if _f])
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self.allowedElems = sorted(allowedElems)
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def __cmp__(self, other):
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raise NotImplementedError
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def __eq__(self, other):
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raise NotImplementedError
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def __ge__(self, other):
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raise NotImplementedError
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def __gt__(self, other):
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raise NotImplementedError
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def __le__(self, other):
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raise NotImplementedError
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def __lt__(self, other):
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raise NotImplementedError
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def __str__(self):
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if not len(self):
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return 'none'
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self.data.sort()
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if self.data == self.allowedElems:
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return 'all'
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else:
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return ','.join(self)
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def prepare_to_store(self):
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return self.__str__()
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def _converter(val, allowedElems, mapdict) -> _ListVariable:
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""" """
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if val == 'none':
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val = []
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elif val == 'all':
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val = allowedElems
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else:
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val = [_f for _f in val.split(',') if _f]
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val = [mapdict.get(v, v) for v in val]
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notAllowed = [v for v in val if v not in allowedElems]
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if notAllowed:
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raise ValueError(
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"Invalid value(s) for option: %s" % ','.join(notAllowed)
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)
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return _ListVariable(val, allowedElems)
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# def _validator(key, val, env) -> None:
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# """ """
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# # TODO: write validator for pgk list
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# pass
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def ListVariable(key, help, default, names, map={}) -> Tuple[str, str, str, None, Callable]:
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"""Return a tuple describing a list SCons Variable.
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The input parameters describe a 'list' option. Returns
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a tuple including the correct converter and validator.
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The result is usable for input to :meth:`Add`.
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*help* will have text appended indicating the legal values
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(not including any extra names from *map*).
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*map* can be used to map alternative names to the ones in *names* -
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that is, a form of alias.
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A 'list' option may either be 'all', 'none' or a list of
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names (separated by commas).
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"""
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names_str = 'allowed names: %s' % ' '.join(names)
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if SCons.Util.is_List(default):
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default = ','.join(default)
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help = '\n '.join(
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(help, '(all|none|comma-separated list of names)', names_str))
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return (key, help, default, None, lambda val: _converter(val, names, map))
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# Local Variables:
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# tab-width:4
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# indent-tabs-mode:nil
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# End:
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# vim: set expandtab tabstop=4 shiftwidth=4:
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