From 5cf2ec6598c24c8c23529743bade788c4afd3354 Mon Sep 17 00:00:00 2001
From: Jesse Keating <jkeating@redhat.com>
Date: Mon, 21 Jul 2008 14:46:10 -0400
Subject: Add a new script that checks e:n-v-r paths based on koji information

---
 scripts/check-upgrade-paths.py | 92 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100755 scripts/check-upgrade-paths.py

diff --git a/scripts/check-upgrade-paths.py b/scripts/check-upgrade-paths.py
new file mode 100755
index 0000000..375ca15
--- /dev/null
+++ b/scripts/check-upgrade-paths.py
@@ -0,0 +1,92 @@
+#!/usr/bin/python
+#
+# check-upgrade-paths.py - A utility to examine a set of tags to verify upgrade
+#       paths for all the packages.
+#
+# Copyright (c) 2008 Red Hat
+#
+# Authors:
+#     Jesse Keating <jkeating@redhat.com>
+
+
+import koji
+import rpm
+import sys
+
+def usage():
+    print """
+    check-upgrade-paths.py tag1 tag2 [tag3 tag4]
+    tags must be in ascending order, f8-gold dist-f8-updates dist-f8-updates-testing dist-f9-updates ...
+    """
+
+def compare(pkgA, pkgB):
+    pkgdictA = koji.parse_NVR(pkgA)
+    pkgdictB = koji.parse_NVR(pkgB)
+
+    rc = rpm.labelCompare((pkgdictA['epoch'], pkgdictA['version'], pkgdictA['release']),
+                         (pkgdictB['epoch'], pkgdictB['version'], pkgdictB['release']))
+
+    return rc
+
+def buildToNvr(build):
+    if build['epoch']:
+        return '%s:%s' % (build['epoch'], build['nvr'])
+    else:
+        return build['nvr']
+
+if len(sys.argv) > 1 and sys.argv[1] in ['-h', '--help', '-help', '--usage']:
+    usage()
+    sys.exit(0)
+elif len(sys.argv) < 3:
+    usage()
+    sys.exit(1)
+else:
+    tags = sys.argv[1:]
+
+kojisession = koji.ClientSession('http://koji.fedoraproject.org/kojihub')
+tagdict = {}
+pkgdict = {}
+badpaths = {}
+
+# Use multicall to get the latest tagged builds from each tag
+kojisession.multicall = True
+for tag in tags:
+    kojisession.listTagged(tag, latest=True, inherit=True)
+
+results = kojisession.multiCall()
+
+# Stuff the results into a dict of tag to builds
+for tag, result in zip(tags, results):
+    tagdict[tag] = result[0]
+
+# Populate the pkgdict with a set of package names to tags to nvrs
+for tag in tags:
+    for pkg in tagdict[tag]:
+        if not pkgdict.has_key(pkg['name']):
+            pkgdict[pkg['name']] = {}
+        pkgdict[pkg['name']][tag] = buildToNvr(pkg)
+
+# Loop through the packages, compare e:n-v-rs from the first tag upwards
+# then proceed to the next given tag and again compare upwards
+for pkg in pkgdict:
+    for tag in tags[:-1]: # Skip the last tag since there is nothing to compare it to
+        for nexttag in tags[tags.index(tag)+1:]: # Compare from current tag up
+            if pkgdict[pkg].has_key(tag):
+                if pkgdict[pkg].has_key(nexttag): # only compare if the next tag knows about this package
+                    rc = compare(pkgdict[pkg][tag], pkgdict[pkg][nexttag])
+                    if rc <= 0:
+                        continue
+                    if rc > 0:
+                        # We've got something broken here.
+                        if not badpaths.has_key(pkg):
+                            badpaths[pkg] = []
+                        badpaths[pkg].append('%s > %s (%s %s)' % (tag, nexttag, pkgdict[pkg][tag], pkgdict[pkg][nexttag]))
+
+# TODO We should print ownership here
+pkgs = badpaths.keys()
+pkgs.sort()
+for pkg in pkgs:
+    print "%s:" % pkg
+    for path in badpaths[pkg]:
+        print "    %s" % path
+    print "\n"
-- 
cgit