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Diffstat (limited to 'morphlib/morph2.py')
-rw-r--r-- | morphlib/morph2.py | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/morphlib/morph2.py b/morphlib/morph2.py new file mode 100644 index 00000000..8987b848 --- /dev/null +++ b/morphlib/morph2.py @@ -0,0 +1,83 @@ +# Copyright (C) 2012 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. + + +import json + + +class Morphology(object): + + '''An in-memory representation of a morphology. + + This is a parsed version of the morphology, with rules for default + values applied. No other processing. + + ''' + + static_defaults = [ + ('configure-commands', []), + ('build-commands', []), + ('test-commands', []), + ('install-commands', []), + ('sources', []), + ('max-jobs', None), + ('description', ''), + ('build-depends', None), + ('build-system', 'manual'), + ] + + def __init__(self, text): + self._dict = json.loads(text) + self._set_defaults() + + def __getitem__(self, key): + return self._dict[key] + + def __contains__(self, key): + return key in self._dict + + def _set_defaults(self): + if 'max-jobs' in self: + self._dict['max-jobs'] = int(self['max-jobs']) + + if 'disk-size' in self: + size = self['disk-size'] + size = size.lower() + if size.endswith('g'): + size = int(size[:-1]) * 1024**3 + elif size.endswith('m'): # pragma: no cover + size = int(size[:-1]) * 1024**2 + elif size.endswith('k'): # pragma: no cover + size = int(size[:-1]) * 1024 + else: # pragma: no cover + size = int(size) + self._dict['disk-size'] = size + + for name, value in self.static_defaults: + if name not in self._dict: + self._dict[name] = value + + if self['kind'] == 'stratum': + self._set_stratum_defaults() + + def _set_stratum_defaults(self): + for source in self['sources']: + if 'repo' not in source: + source['repo'] = source['name'] + if 'morph' not in source: + source['morph'] = source['name'] + if 'build-depends' not in source: + source['build-depends'] = None + |