[DELTA] add createdelta script.

scripts/createdelta.py

@@ -0,0 +1,52 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2005, 2006 TUBITAK/UEKAE
+#
+# 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; either version 2 of the License, or (at your option)
+# any later version.
+#
+# Please read the COPYING file.
+
+import os
+import glob
+import pisi
+import pisi.util as util
+from pisi.version import Version
+from pisi.delta import create_delta_package
+
+def minsandmaxes():
+
+    packages = map(lambda x: os.path.basename(x).split(".pisi")[0], set(glob.glob("*.pisi")) - set(glob.glob("*.delta.pisi")))
+
+    versions = {}
+    for file in packages:
+        name, version = util.parse_package_name(file)
+        versions.setdefault(name, []).append(Version(version))
+
+    mins = {}
+    maxs = {}
+    for pkg in versions.keys():
+        mins[pkg] = min(versions[pkg])
+        maxs[pkg] = max(versions[pkg])
+
+    return mins, maxs
+
+if __name__ == "__main__":
+
+    pisi.api.init(write=False)
+
+    mi, ma = minsandmaxes()
+    for pkg in mi.keys():
+        old_pkg = "%s-%s.pisi" % (pkg, str(mi[pkg]))
+        new_pkg = "%s-%s.pisi" % (pkg, str(ma[pkg]))
+        name, version = util.parse_package_name(pkg)
+
+        if not old_pkg == new_pkg:
+        # skip if same 
+            if not os.path.exists("%s-%s-%s.delta.pisi" % (name, str(mi[pkg].build), str(ma[pkg].build))):
+            # skip if delta exists
+                print "%s --> Min: %s Max: %s \n %s-%s-%s.delta.pisi" % (pkg, old_pkg, new_pkg, name, str(mi[pkg].build), str(ma[pkg].build))
+                create_delta_package(old_pkg, new_pkg)