File createrepo-0.9.9-modifyrepo.patch of Package createrepo

--- modifyrepo.py
+++ modifyrepo.py
@@ -23,6 +23,7 @@
 
 import os
 import sys
+import re
 
 #add ability to load createrepo module from subfolder
 cmd_folder = os.path.dirname(os.path.abspath(__file__))
@@ -44,7 +45,6 @@
         """ Parses the repomd.xml file existing in the given repo directory. """
         self.repodir = os.path.abspath(repo)
         self.repomdxml = os.path.join(self.repodir, 'repomd.xml')
-        self.checksum_type = 'sha'
 
         if not os.path.exists(self.repomdxml):
             raise MDError, '%s not found' % self.repomdxml
@@ -94,8 +94,11 @@
         print "Wrote:", destmd
 
         open_csum = checksum(self.checksum_type, metadata)
-       #csum, destmd = checksum_and_rename(destmd, self.checksum_type)
-        csum = checksum(self.checksum_type, destmd)
+        if self.unique_md_filenames:
+                csum, destmd = checksum_and_rename(destmd, self.checksum_type)
+        else:
+                csum = checksum(self.checksum_type, destmd)
+
         base_destmd = os.path.basename(destmd)
 
 
@@ -131,6 +134,14 @@
     # query options
     parser.add_option("--mdtype", dest='mdtype',
                       help="specific datatype of the metadata, will be derived from the filename if not specified")
+    parser.add_option("-s", "--checksum", dest='sumtype',
+        help="specify the checksum type to use")
+    parser.add_option("--unique-md-filenames", dest="unique_md_filenames",
+        help="include the file's checksum in the filename, helps with proxies",
+        action="store_true")
+    parser.add_option("--simple-md-filenames", dest="simple_md_filenames",
+        help="do not include the file's checksum in the filename",
+        action="store_true")
     parser.usage = "modifyrepo [options] <input_metadata> <output repodata>"
     
     (opts, argsleft) = parser.parse_args(args)
@@ -144,6 +155,26 @@
     except MDError, e:
         print "Could not access repository: %s" % str(e)
         return 1
+
+    try:
+        primarymd = repomd.repoobj.getData('primary')
+        if primarymd and primarymd.checksum and not opts.sumtype:
+            opts.sumtype = primarymd.checksum[0]
+        if primarymd and primarymd.location and primarymd.location[1] and \
+                not opts.simple_md_filenames and not opts.unique_md_filenames:
+            if not re.match(r'[0-9a-f]{32,}-', os.path.basename(primarymd.location[1])):
+                opts.simple_md_filenames = True
+    except Exception, e:
+        pass
+
+    if not opts.sumtype:
+        opts.sumtype = 'sha256'
+    if not opts.simple_md_filenames:
+        opts.unique_md_filenames = True
+
+    repomd.checksum_type = opts.sumtype
+    repomd.unique_md_filenames = opts.unique_md_filenames
+
     try:
         repomd.add(metadata, mdtype=opts.mdtype)
     except MDError, e: