1 files changed, 52 insertions, 0 deletions
diff --git a/morphlib/morphologyloader.py b/morphlib/morphologyloader.py
new file mode 100644
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+++ b/morphlib/morphologyloader.py
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+# 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 os
+import StringIO
+import urlparse
+
+import morphlib
+
+
+class MorphologyLoader(object):
+
+    '''Load morphologies from git and parse them into Morphology objects.'''
+
+    def __init__(self, settings):
+        self.settings = settings
+        self.morphologies = {}
+
+    def load(self, repo, ref, filename):
+        key = (repo, ref, filename)
+        
+        if key in self.morphologies:
+            return self.morphologies[key]
+        else:
+            morph = self._get_morph_from_git(repo, ref, filename)
+            self.morphologies[key] = morph
+            return morph
+
+    def _get_morph_text(self, repo, ref, filename): # pragma: no cover
+        return morphlib.git.get_morph_text(repo, ref, filename)
+
+    def _get_morph_from_git(self, repo, ref, filename):
+        morph_text = self._get_morph_text(repo, ref, filename)
+        scheme, netlock, path, params, query, frag = urlparse.urlparse(repo)
+        f = StringIO.StringIO(morph_text)
+        f.name = os.path.join(path, filename)
+        morph = morphlib.morphology.Morphology(f,
+                                               self.settings['git-base-url'])
+        return morph