New command "pisi blame"

$ pisi blame kernel
Ad: kernel, versiyon: 2.6.30_rc8, sürüm: 120
Package Maintainer: Ozan Çağlayan <ozan@pardus.org.tr>
Update Date: 2009-06-03

- Version bump to 2.6.30_rc8-git1 which contains the latest DRM fixes,
                - Add DRM patchset from Fatih,
                - Add CRYPTO_LZMA support from OpenWRT.

or a package release can be given:

$ pisi blame -r 29 kdebase
Ad: kdebase, versiyon: 4.2.3, sürüm: 29
Package Maintainer: Gökçen Eraslan <gokcen@pardus.org.tr>
Update Date: 2009-05-08

Add patches from Kubuntu about dolphin and folderview.

pisi/cli/blame.py

@@ -0,0 +1,63 @@
+# -*- coding:utf-8 -*-
+#
+# Copyright (C) 2009, 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 optparse
+
+import gettext
+__trans = gettext.translation('pisi', fallback=True)
+_ = __trans.ugettext
+
+import pisi.cli.command as command
+import pisi.context as ctx
+import pisi.api
+import pisi.db
+
+class Blame(command.Command):
+    __doc__ = _("""Info about the package owner
+
+Usage: blame <package> ... <package>
+
+""")
+
+    __metaclass__ = command.autocommand
+
+    def __init__(self, args=None):
+        super(Blame, self).__init__(args)
+        self.packagedb = pisi.db.packagedb.PackageDB()
+
+    name = ("blame", "bl")
+
+    def options(self):
+        group = optparse.OptionGroup(self.parser, _("blame options"))
+        group.add_option("-r", "--release", action="store", type="int", help=_("Blame for the given release"))
+        self.parser.add_option_group(group)
+
+    def run(self):
+        self.init(database=False, write=False)
+        for package in self.args:
+            if self.packagedb.has_package(package):
+                pkg = self.packagedb.get_package(package)
+                release = ctx.get_option('release')
+                if not release:
+                    self.print_package_info(pkg)
+                else:
+                    for hno, update in enumerate(pkg.history):
+                        if int(update.release) == release:
+                            self.print_package_info(pkg, hno)
+
+    def print_package_info(self, package, hno=0):
+        s = _('Name: %s, version: %s, release: %s\n') % (
+              package.name, package.history[hno].version, package.history[hno].release)
+        s += _('Package Maintainer: %s <%s>\n') % (unicode(package.source.packager.name), package.source.packager.email)
+        s += _('Update Date: %s\n' % package.history[hno].date)
+        s += _('\n%s\n' % package.history[hno].comment)
+        print s

pisi/cli/pisicli.py

@@ -21,6 +21,7 @@ import pisi
 import pisi.cli
 import pisi.cli.command as command
 import pisi.cli.addrepo
+import pisi.cli.blame
 import pisi.cli.build
 import pisi.cli.check
 import pisi.cli.clean