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# Copyright (C) 2013-2014 Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# =*= License: GPL-2 =*=
import UserDict
import morphlib
class Morphology(UserDict.IterableUserDict):
'''A container for a morphology, plus its metadata.
A morphology is, basically, a dict. This class acts as that dict,
plus stores additional metadata about the morphology, such as where
it came from, and the ref that was used for it. It also has a dirty
attribute, to indicate whether the morphology has had changes done
to it, but does not itself set that attribute: the caller has to
maintain the flag themselves.
This class does NO validation of the data, nor does it parse the
morphology text, or produce a textual form of itself. For those
things, see MorphologyLoader.
'''
def __init__(self, *args, **kwargs):
UserDict.IterableUserDict.__init__(self, *args, **kwargs)
self.repo_url = None
self.ref = None
self.filename = None
self.dirty = None
def get_commands(self, which):
'''Return the commands to run from a morphology or the build system'''
if self.get(which, None) is None:
attr = '_'.join(which.split('-'))
bs = morphlib.buildsystem.lookup_build_system(self['build-system'])
return getattr(bs, attr)
else:
return self[which]
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