check if all packages in a repo are newer than all other repos (#588)

README.asciidoc

@@ -32,6 +32,8 @@ Scripts
 * *link:docs/maintbot.asciidoc[maintbot].* script that checks maintenance
   incidents to make sure the Factory maintainer submitted the package.
 
+* *link:checknewer[checknewer].* script compares version numbers in repos to
+  make sure all packages e.g. in a new distro are newer
 
 Installation
 ------------

checknewer

@@ -0,0 +1,77 @@
+#!/usr/bin/python
+# Copyright (c) 2016 SUSE LLC
+#
+# 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.
+
+# check if all packages in a repo are newer than all other repos
+
+import sys
+import os
+import re
+import solv
+
+pool = solv.Pool()
+args = sys.argv[1:]
+if len(args) < 2:
+   print("usage: checknewer NEWREPO OLDREPO1 [OLDREPO2...]")
+   sys.exit(1)
+
+firstrepo = None
+for arg in args:
+   argf = solv.xfopen(arg)
+   repo = pool.add_repo(arg)
+   if not firstrepo:
+      firstrepo = repo
+   if re.search(r'solv$', arg):
+        repo.add_solv(argf)
+   elif re.search(r'primary\.xml', arg):
+        repo.add_rpmmd(argf, None)
+   elif re.search(r'packages', arg):
+        repo.add_susetags(argf, 0, None)
+   else:
+       print("%s: unknown repo type" % (arg))
+       sys.exit(1)
+
+# we only want self-provides
+for p in pool.solvables:
+    if p.archid == solv.ARCH_SRC or p.archid == solv.ARCH_NOSRC:
+        continue
+    selfprovides = pool.rel2id(p.nameid, p.evrid, solv.REL_EQ)
+    p.unset(solv.SOLVABLE_PROVIDES)
+    p.add_deparray(solv.SOLVABLE_PROVIDES, selfprovides)
+
+pool.createwhatprovides()
+
+for p in firstrepo.solvables:
+    newerdep = pool.rel2id(p.nameid, p.evrid, solv.REL_GT | solv.REL_EQ)
+    for pp in pool.whatprovides(newerdep):
+        if pp.repo == firstrepo:
+            continue
+        if p.nameid != pp.nameid:
+            continue
+        if p.identical(pp):
+            continue
+	if p.archid != pp.archid and p.archid != solv.ARCH_NOARCH and pp.archid != solv.ARCH_NOARCH:
+            continue
+        src = p.name
+        if not p.lookup_void(solv.SOLVABLE_SOURCENAME):
+            src = p.lookup_str(solv.SOLVABLE_SOURCENAME)
+        if src is None:
+            src = "?"
+        print("%s: %s is older than %s from %s" % (src, p, pp, pp.repo))