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
+