--- a/hgext/convert/__init__.py	Sun Mar 24 16:43:25 2013 -0700
+++ b/hgext/convert/__init__.py	Sun Mar 24 00:06:52 2013 +0700
@@ -61,6 +61,10 @@
     --sourcesort  try to preserve source revisions order, only
                   supported by Mercurial sources.
 
+    --closesort   try to move closed revisions as close as possible
+                  to parent branches, only supported by Mercurial
+                  sources.
+
     If ``REVMAP`` isn't given, it will be put in a default location
     (``<dest>/.hg/shamap`` by default). The ``REVMAP`` is a simple
     text file that maps each source commit ID to the destination ID
@@ -318,7 +322,8 @@
            _('change branch names while converting'), _('FILE')),
           ('', 'branchsort', None, _('try to sort changesets by branches')),
           ('', 'datesort', None, _('try to sort changesets by date')),
-          ('', 'sourcesort', None, _('preserve source changesets order'))],
+          ('', 'sourcesort', None, _('preserve source changesets order')),
+          ('', 'closesort', None, _('try to reorder closed revisions'))],
          _('hg convert [OPTION]... SOURCE [DEST [REVMAP]]')),
     "debugsvnlog":
         (debugsvnlog,

--- a/hgext/convert/common.py	Sun Mar 24 16:43:25 2013 -0700
+++ b/hgext/convert/common.py	Sun Mar 24 00:06:52 2013 +0700
@@ -145,6 +145,11 @@
         """
         return False
 
+    def hasnativeclose(self):
+        """Return true if this source has ability to close branch.
+        """
+        return False
+
     def lookuprev(self, rev):
         """If rev is a meaningful revision reference in source, return
         the referenced identifier in the same format used by getcommit().

--- a/hgext/convert/convcmd.py	Sun Mar 24 16:43:25 2013 -0700
+++ b/hgext/convert/convcmd.py	Sun Mar 24 00:06:52 2013 +0700
@@ -227,6 +227,14 @@
                 return sorted(nodes, key=keyfn)[0]
             return picknext
 
+        def makeclosesorter():
+            """Close order sort."""
+            keyfn = lambda n: ('close' not in self.commitcache[n].extra,
+                               self.commitcache[n].sortkey)
+            def picknext(nodes):
+                return sorted(nodes, key=keyfn)[0]
+            return picknext
+
         def makedatesorter():
             """Sort revisions by date."""
             dates = {}
@@ -246,6 +254,8 @@
             picknext = makedatesorter()
         elif sortmode == 'sourcesort':
             picknext = makesourcesorter()
+        elif sortmode == 'closesort':
+            picknext = makeclosesorter()
         else:
             raise util.Abort(_('unknown sort mode: %s') % sortmode)
 
@@ -446,13 +456,15 @@
             shutil.rmtree(path, True)
         raise
 
-    sortmodes = ('branchsort', 'datesort', 'sourcesort')
+    sortmodes = ('branchsort', 'datesort', 'sourcesort', 'closesort')
     sortmode = [m for m in sortmodes if opts.get(m)]
     if len(sortmode) > 1:
         raise util.Abort(_('more than one sort mode specified'))
     sortmode = sortmode and sortmode[0] or defaultsort
     if sortmode == 'sourcesort' and not srcc.hasnativeorder():
         raise util.Abort(_('--sourcesort is not supported by this data source'))
+    if sortmode == 'closesort' and not srcc.hasnativeclose():
+        raise util.Abort(_('--closesort is not supported by this data source'))
 
     fmap = opts.get('filemap')
     if fmap:

--- a/hgext/convert/hg.py	Sun Mar 24 16:43:25 2013 -0700
+++ b/hgext/convert/hg.py	Sun Mar 24 00:06:52 2013 +0700
@@ -386,6 +386,9 @@
     def hasnativeorder(self):
         return True
 
+    def hasnativeclose(self):
+        return True
+
     def lookuprev(self, rev):
         try:
             return hex(self.repo.lookup(rev))

--- a/tests/test-convert-datesort.t	Sun Mar 24 16:43:25 2013 -0700
+++ b/tests/test-convert-datesort.t	Sun Mar 24 00:06:52 2013 +0700
@@ -38,6 +38,26 @@
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo b >> b
   $ hg ci -m b1 -d '9 0'
+  $ hg up -C 0
+  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ echo c >> c
+  $ hg branch branchc
+  marked working directory as branch branchc
+  (branches are permanent and global, did you want a bookmark?)
+  $ hg ci -Am c0 -d '10 0'
+  adding c
+  $ hg up -C brancha
+  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ hg ci --close-branch -m a7x -d '11 0'
+  $ hg up -C branchb
+  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ hg ci --close-branch -m b2x -d '12 0'
+  $ hg up -C branchc
+  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ hg merge branchb
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  (branch merge, don't forget to commit)
+  $ hg ci -m c1 -d '13 0'
   $ cd ..
 
 convert with datesort
@@ -47,27 +67,39 @@
   scanning source...
   sorting...
   converting...
-  8 a0
-  7 a1
-  6 a2
-  5 a3
-  4 a4
-  3 b0
-  2 a5
-  1 a6
-  0 b1
+  12 a0
+  11 a1
+  10 a2
+  9 a3
+  8 a4
+  7 b0
+  6 a5
+  5 a6
+  4 b1
+  3 c0
+  2 a7x
+  1 b2x
+  0 c1
 
 graph converted repo
 
   $ hg -R t-datesort glog --template '{rev} "{desc}"\n'
-  o  8 "b1"
-  |
-  | o  7 "a6"
+  o    12 "c1"
+  |\
+  | o  11 "b2x"
   | |
-  | o  6 "a5"
-  | |
-  o |  5 "b0"
-  | |
+  | | o  10 "a7x"
+  | | |
+  o | |  9 "c0"
+  | | |
+  | o |  8 "b1"
+  | | |
+  | | o  7 "a6"
+  | | |
+  | | o  6 "a5"
+  | | |
+  | o |  5 "b0"
+  |/ /
   | o  4 "a4"
   | |
   | o  3 "a3"
@@ -86,29 +118,41 @@
   scanning source...
   sorting...
   converting...
-  8 a0
-  7 a1
-  6 a2
-  5 a3
-  4 b0
-  3 a4
-  2 a5
-  1 a6
-  0 b1
+  12 a0
+  11 a1
+  10 a2
+  9 a3
+  8 b0
+  7 a4
+  6 a5
+  5 a6
+  4 b1
+  3 c0
+  2 a7x
+  1 b2x
+  0 c1
 
 graph converted repo
 
   $ hg -R t-sourcesort glog --template '{rev} "{desc}"\n'
-  o  8 "b1"
-  |
-  | o  7 "a6"
+  o    12 "c1"
+  |\
+  | o  11 "b2x"
   | |
-  | o  6 "a5"
-  | |
-  | o  5 "a4"
-  | |
-  o |  4 "b0"
-  | |
+  | | o  10 "a7x"
+  | | |
+  o | |  9 "c0"
+  | | |
+  | o |  8 "b1"
+  | | |
+  | | o  7 "a6"
+  | | |
+  | | o  6 "a5"
+  | | |
+  | | o  5 "a4"
+  | | |
+  | o |  4 "b0"
+  |/ /
   | o  3 "a3"
   | |
   | o  2 "a2"
@@ -117,3 +161,54 @@
   |/
   o  0 "a0"
   
+
+convert with closesort
+
+  $ hg convert --closesort t t-closesort
+  initializing destination t-closesort repository
+  scanning source...
+  sorting...
+  converting...
+  12 a0
+  11 a1
+  10 a2
+  9 a3
+  8 b0
+  7 a4
+  6 a5
+  5 a6
+  4 a7x
+  3 b1
+  2 b2x
+  1 c0
+  0 c1
+
+graph converted repo
+
+  $ hg -R t-closesort glog --template '{rev} "{desc}"\n'
+  o    12 "c1"
+  |\
+  | o  11 "c0"
+  | |
+  o |  10 "b2x"
+  | |
+  o |  9 "b1"
+  | |
+  | | o  8 "a7x"
+  | | |
+  | | o  7 "a6"
+  | | |
+  | | o  6 "a5"
+  | | |
+  | | o  5 "a4"
+  | | |
+  o | |  4 "b0"
+  |/ /
+  | o  3 "a3"
+  | |
+  | o  2 "a2"
+  | |
+  | o  1 "a1"
+  |/
+  o  0 "a0"
+  

--- a/tests/test-convert.t	Sun Mar 24 16:43:25 2013 -0700
+++ b/tests/test-convert.t	Sun Mar 24 00:06:52 2013 +0700
@@ -46,6 +46,8 @@
                     larger than the same ones generated by --branchsort.
       --sourcesort  try to preserve source revisions order, only supported by
                     Mercurial sources.
+      --closesort   try to move closed revisions as close as possible to parent
+                    branches, only supported by Mercurial sources.
   
       If "REVMAP" isn't given, it will be put in a default location
       ("<dest>/.hg/shamap" by default). The "REVMAP" is a simple text file that
@@ -268,6 +270,7 @@
       --branchsort       try to sort changesets by branches
       --datesort         try to sort changesets by date
       --sourcesort       preserve source changesets order
+      --closesort        try to reorder closed revisions
   
   use "hg -v help convert" to show the global options
   $ hg init a