Implement the 'similar packages' search in a new importer plugin: SemanticPlugin.

debexpo/lib/semantic.py

 # -*- coding: utf-8 -*-
 #
-#   utils.py — Debexpo utility functions
+#   semantic.py — Semantic metadata functions
 #
 #   This file is part of debexpo - https://alioth.debian.org/projects/debexpo/
 #
@@ -36,7 +36,7 @@ import xapian
 from apt.cache import Cache
 
 
-class SemanticPackage(object):
+class SemanticData(object):
     def __init__(self, packages, descriptions):
 	self.db = xapian.Database("/var/lib/apt-xapian-index/index")
 	self.cache = Cache()

debexpo/model/package_versions.py

@@ -41,9 +41,6 @@ from sqlalchemy import orm
 from debexpo.model import meta, OrmObject
 from debexpo.model.packages import Package
 
-
-from debexpo.lib.semantic import SemanticPackage
-
 t_package_versions = sa.Table('package_versions', meta.metadata,
     sa.Column('id', sa.types.Integer, primary_key=True),
     sa.Column('package_id', sa.types.Integer, sa.ForeignKey('packages.id')),
@@ -68,18 +65,6 @@ class PackageVersion(OrmObject):
         from debexpo.model.binary_packages import BinaryPackage
         return meta.session.query(BinaryPackage).filter_by(package_version_id=self.id).all()
 
-    def get_similar_packages(self):
-        package = meta.session.query(Package).filter_by(id=self.id)
-
-	binary_packages = self.get_binary_packages()
-
-	packages = [b.name for b in binary_packages]
-	descriptions = [b.get_description() for b in binary_packages]
-
-	sp = SemanticPackage(packages, descriptions)
-
-        return sp.iter_similar_packages()
-
 orm.mapper(PackageVersion, t_package_versions, properties={
     'package' : orm.relation(Package, backref='package_versions')
 })

debexpo/plugins/semantic.py

+# -*- coding: utf-8 -*-
+#
+#   semantic.py — semantic plugin
+#
+#   This file is part of debexpo - https://alioth.debian.org/projects/debexpo/
+#
+#   Copyright © 2008 Jonny Lamb <jonny@debian.org>
+#   Copyright © 2012 Nicolas Dandrimont <Nicolas.Dandrimont@crans.org>
+#
+#   Permission is hereby granted, free of charge, to any person
+#   obtaining a copy of this software and associated documentation
+#   files (the "Software"), to deal in the Software without
+#   restriction, including without limitation the rights to use,
+#   copy, modify, merge, publish, distribute, sublicense, and/or sell
+#   copies of the Software, and to permit persons to whom the
+#   Software is furnished to do so, subject to the following
+#   conditions:
+#
+#   The above copyright notice and this permission notice shall be
+#   included in all copies or substantial portions of the Software.
+#
+#   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+#   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+#   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+#   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+#   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+#   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+#   OTHER DEALINGS IN THE SOFTWARE.
+
+"""
+Holds the semantic plugin.
+"""
+
+__author__ = 'Clément Schreiner'
+__copyright = 'Copyright © 2012 Clément Schreiner'
+__license__ = 'MIT'
+
+import logging
+
+from debexpo.plugins import BasePlugin
+from debexpo.model.plugin_results import PluginResult, plugin_result_mapper
+
+from debexpo.lib.semantic import SemanticData
+
+from sqlalchemy import orm
+
+log = logging.getLogger(__name__)
+
+class SemanticResult(PluginResult):
+    pass
+
+orm.mapper(SemanticResult, inherits=plugin_result_mapper,
+           polymorphic_identity = 'semantic')
+
+class SemanticPlugin(BasePlugin):
+    result_model = SemanticResult
+
+    def test_similar_packages(self):
+        binary_packages = self.package_version.get_binary_packages()
+
+	packages = [b.name for b in binary_packages]
+	descriptions = [b.get_description() for b in binary_packages]
+
+	sd = SemanticData(packages, descriptions)
+
+        _id = 0
+        for p in sd.iter_similar_packages():
+            self._add_data(id=_id, **p)
+            _id += 1
+
+
+plugin = SemanticPlugin