From 3209008573b2f58fb271fac35ae086ab75189616 Mon Sep 17 00:00:00 2001
From: Jeremy Katz <katzj@fedoraproject.org>
Date: Nov 07 2005 17:58:01 +0000
Subject: - enable plugins by default

- add installyonlyn plugin so that we only keep two kernels around by
    default

---

diff --git a/installonlyn.py b/installonlyn.py
new file mode 100644
index 0000000..fb63325
--- /dev/null
+++ b/installonlyn.py
@@ -0,0 +1,70 @@
+# A plugin for yum which only leaves n 'kernel' packages installed instead
+# of infinitely doing installonly
+#
+# Copyright 2005  Red Hat, Inc.
+# Jeremy Katz <katzj@redhat.com>
+#
+# 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.
+#
+# 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.
+#
+# version 0.01
+
+import os
+from rpmUtils import miscutils
+from yum.constants import *
+from yum.plugins import TYPE_CORE, TYPE_INTERFACE, PluginYumExit
+from yum.packages import YumInstalledPackage
+
+requires_api_version = '2.1'
+plugin_type = (TYPE_CORE,)
+
+def sortPackages(pkg1,pkg2):
+    """sort pkgtuples by evr"""
+    return miscutils.compareEVR((pkg1[2:]),(pkg2[2:]))
+
+def get_running_kernel_version_release():
+    """This takes the output of uname and figures out the (version, release)
+    tuple for the running kernel."""
+    ver = os.uname()[2]
+    for s in ("bigmem", "enterprise", "smp", "hugemem", "guest", "hypervisor"):
+        if ver.endswith(s):
+            ver = ver.replace(s, "")
+    (v, r) = ver.split("-", 1)
+    return (v, r)
+
+def config_hook(conduit):
+    global num_tokeep
+    num_tokeep = conduit.confInt('main', 'tokeep', default=2)
+    
+def postresolve_hook(conduit):
+    ts = conduit.getTsInfo()
+    rpmdb = conduit.getRpmDB()
+    conf = conduit.getConf()
+    mems = ts.getMembers()
+    toremove = []
+    for instpkg in conf.installonlypkgs:
+        for m in mems:
+            if m.name == instpkg:
+                installed = rpmdb.returnTupleByKeyword(name=instpkg)
+                if len(installed) >= num_tokeep - 1: # since we're adding one
+                    numleft = len(installed) - num_tokeep + 1
+                    (curv, curr) = get_running_kernel_version_release()
+                    
+                    installed.sort(sortPackages)
+                    installed.reverse()
+                    for (n, a, e, v, r) in installed:
+                        if (v, r) == (curv, curr): # don't remove running
+                            continue
+                        toremove.append(YumInstalledPackage(rpmdb.returnHeaderByTuple((n,a,e,v,r))[0]))
+                        numleft -= 1
+                        if numleft == 0:
+                            break
+                        
+    map(lambda x: ts.addErase(x), toremove)
diff --git a/plugin.conf b/plugin.conf
new file mode 100644
index 0000000..8e4d76c
--- /dev/null
+++ b/plugin.conf
@@ -0,0 +1,2 @@
+[main]
+enabled=1
diff --git a/yum.conf.fedora b/yum.conf.fedora
index 5d7b6d2..9e877ea 100644
--- a/yum.conf.fedora
+++ b/yum.conf.fedora
@@ -6,9 +6,9 @@ pkgpolicy=newest
 distroverpkg=redhat-release
 tolerant=1
 exactarch=1
-retries=20
 obsoletes=1
 gpgcheck=1
+plugins=1
 
 # PUT YOUR REPOS HERE OR IN separate files named file.repo
 # in /etc/yum.repos.d
diff --git a/yum.spec b/yum.spec
index b743633..8f77e01 100644
--- a/yum.spec
+++ b/yum.spec
@@ -3,7 +3,7 @@
 Summary: RPM installer/updater
 Name: yum
 Version: 2.4.0
-Release: 8
+Release: 9
 License: GPL
 Group: System Environment/Base
 Source0: http://linux.duke.edu/projects/yum/download/2.4/yum-%{version}.tar.gz
@@ -14,6 +14,10 @@ Patch3: yum-2.4-returnbyname-list.patch
 Patch4: yum-2.4-tsconsts.patch
 Patch5: yum-2.4-ppc64.patch
 Patch6: yum-2.4-more-list-fixes.patch
+
+Source99: plugin.conf
+# default plugins here
+Source100: installonlyn.py
 URL: http://linux.duke.edu/yum/
 BuildArchitectures: noarch
 BuildRequires: python
@@ -51,6 +55,9 @@ install -m 644 %{SOURCE1} $RPM_BUILD_ROOT/etc/yum.conf
 chmod +x $RPM_BUILD_ROOT/%{_sysconfdir}/cron.daily/yum.cron
 mkdir -p $RPM_BUILD_ROOT/%{_sysconfdir}/yum/pluginconf.d $RPM_BUILD_ROOT/usr/lib/yum-plugins
 
+install -m 644 %{SOURCE100} $RPM_BUILD_ROOT/usr/lib/yum-plugins/installonlyn.py
+install -m 644 %{SOURCE99} $RPM_BUILD_ROOT/%{_sysconfdir}/yum/pluginconf.d/installonlyn.conf
+
 %clean
 rm -rf $RPM_BUILD_ROOT
 
@@ -88,9 +95,15 @@ exit 0
 %{_mandir}/man*/*
 # plugin stuff
 %dir %{_sysconfdir}/yum/pluginconf.d 
+%config %{_sysconfdir}/yum/pluginconf.d/*
 %dir /usr/lib/yum-plugins
+/usr/lib/yum-plugins/*
 
 %changelog
+* Mon Nov  7 2005 Jeremy Katz <katzj@redhat.com> - 2.4.0-9
+- enable plugins by default
+- add installyonlyn plugin so that we only keep two kernels around by default
+
 * Mon Oct 24 2005 Jeremy Katz <katzj@redhat.com> - 2.4.0-8
 - drop macro patch
 - more fixes for returnByName* stuff -- need to leave best arch selection