util: implement a deterministic __repr__ on sortdict

`hg debugbundle` is calling repr() on bundle2 part params, which are
now util.sortdict instances. Unfortunately, repr() doesn't appear
to be deterministic for util.sortdict. So, we implement one.

We include the type name because that's the common convention for
__repr__ implementations. Having the type name in `hg debugbundle`
is a bit ugly. But it's a debug command and I don't care enough to
fix it.

mercurial/util.py

@@ -527,6 +527,10 b' class sortdict(dict):'
     def insert(self, index, key, val):
         self._list.insert(index, key)
         dict.__setitem__(self, key, val)
+    def __repr__(self):
+        if not self:
+            return '%s()' % self.__class__.__name__
+        return '%s(%r)' % (self.__class__.__name__, self.items())
 
 class _lrucachenode(object):
     """A node in a doubly linked list.

tests/test-bundle-type.t

@@ -52,7 +52,7 b' test bundle types'
   1 changesets found
   HG20\x00\x00 (esc)
   Stream params: {}
-  changegroup -- "{'version': '02'}"
+  changegroup -- "sortdict([('version', '02')])"
       c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
   none-v2
   
@@ -60,8 +60,8 b' test bundle types'
   searching for changes
   1 changesets found
   HG20\x00\x00 (esc)
-  Stream params: {'Compression': 'BZ'}
-  changegroup -- "{'version': '02'}"
+  Stream params: sortdict([('Compression', 'BZ')])
+  changegroup -- "sortdict([('version', '02')])"
       c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
   bzip2-v2
   
@@ -69,8 +69,8 b' test bundle types'
   searching for changes
   1 changesets found
   HG20\x00\x00 (esc)
-  Stream params: {'Compression': 'GZ'}
-  changegroup -- "{'version': '02'}"
+  Stream params: sortdict([('Compression', 'GZ')])
+  changegroup -- "sortdict([('version', '02')])"
       c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
   gzip-v2
   
@@ -79,7 +79,7 b' test bundle types'
   1 changesets found
   HG20\x00\x00 (esc)
   Stream params: {}
-  changegroup -- "{'version': '02'}"
+  changegroup -- "sortdict([('version', '02')])"
       c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
   none-v2
   
@@ -87,8 +87,8 b' test bundle types'
   searching for changes
   1 changesets found
   HG20\x00\x00 (esc)
-  Stream params: {'Compression': 'BZ'}
-  changegroup -- "{'version': '02'}"
+  Stream params: sortdict([('Compression', 'BZ')])
+  changegroup -- "sortdict([('version', '02')])"
       c35a0f9217e65d1fdb90c936ffa7dbe679f83ddf
   bzip2-v2
   

tests/test-bundle2-format.t

@@ -990,7 +990,7 b' Support for changegroup'
 
   $ hg debugbundle ../rev.hg2
   Stream params: {}
-  changegroup -- '{}'
+  changegroup -- 'sortdict()'
       32af7686d403cf45b5d95f2d70cebea587ac806a
       9520eea781bcca16c1e15acc0ba14335a0e8e5ba
       eea13746799a9e0bfd88f29d3c2e9dc9389f524f
@@ -1118,8 +1118,8 b' Simple case where it just work: GZ'
   0360: db fb 6a 33 df c1 7d 99 cf ef d4 d5 6d da 77 7c |..j3..}.....m.w||
   0370: 3b 19 fd af c5 3f f1 60 c3 17                   |;....?.`..|
   $ hg debugbundle ../rev.hg2.bz
-  Stream params: {'Compression': 'GZ'}
-  changegroup -- '{}'
+  Stream params: sortdict([('Compression', 'GZ')])
+  changegroup -- 'sortdict()'
       32af7686d403cf45b5d95f2d70cebea587ac806a
       9520eea781bcca16c1e15acc0ba14335a0e8e5ba
       eea13746799a9e0bfd88f29d3c2e9dc9389f524f
@@ -1205,8 +1205,8 b' Simple case where it just work: BZ'
   0420: 8b 43 88 57 9c 01 f5 61 b5 e1 27 41 7e af 83 fe |.C.W...a..'A~...|
   0430: 2e e4 8a 70 a1 21 46 96 30 7a                   |...p.!F.0z|
   $ hg debugbundle ../rev.hg2.bz
-  Stream params: {'Compression': 'BZ'}
-  changegroup -- '{}'
+  Stream params: sortdict([('Compression', 'BZ')])
+  changegroup -- 'sortdict()'
       32af7686d403cf45b5d95f2d70cebea587ac806a
       9520eea781bcca16c1e15acc0ba14335a0e8e5ba
       eea13746799a9e0bfd88f29d3c2e9dc9389f524f

tests/test-debugbundle.t

@@ -31,7 +31,7 b' Terse output:'
 
   $ hg debugbundle bundle2.hg
   Stream params: {}
-  changegroup -- "{'version': '02'}"
+  changegroup -- "sortdict([('version', '02')])"
       0e067c57feba1a5694ca4844f05588bb1bf82342
       991a3460af53952d10ec8a295d3d2cc2e5fa9690
 
@@ -56,7 +56,7 b' Verbose output:'
 
   $ hg debugbundle --all bundle2.hg
   Stream params: {}
-  changegroup -- "{'version': '02'}"
+  changegroup -- "sortdict([('version', '02')])"
       format: id, p1, p2, cset, delta base, len(delta)
   
       changelog

tests/test-generaldelta.t

@@ -154,8 +154,8 b' Test that strip bundle use bundle2'
   0 files updated, 0 files merged, 5 files removed, 0 files unresolved
   saved backup bundle to $TESTTMP/aggressive/.hg/strip-backup/1c5d4dc9a8b8-6c68e60c-backup.hg (glob)
   $ hg debugbundle .hg/strip-backup/*
-  Stream params: {'Compression': 'BZ'}
-  changegroup -- "{'version': '02'}"
+  Stream params: sortdict([('Compression', 'BZ')])
+  changegroup -- "sortdict([('version', '02')])"
       1c5d4dc9a8b8d6e1750966d343e94db665e7a1e9
 
   $ cd ..

tests/test-getbundle.t

@@ -170,7 +170,7 b' Get branch and merge:'
   $ hg debuggetbundle repo bundle -t bundle2
   $ hg debugbundle bundle
   Stream params: {}
-  changegroup -- "{'version': '01'}"
+  changegroup -- "sortdict([('version', '01')])"
       7704483d56b2a7b5db54dcee7c62378ac629b348
       29a4d1f17bd3f0779ca0525bebb1cfb51067c738
       713346a995c363120712aed1aee7e04afd867638

tests/test-shelve.t

@@ -1044,8 +1044,8 b' with general delta'
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg debugbundle .hg/shelved/*.hg
-  Stream params: {'Compression': 'BZ'}
-  changegroup -- "{'version': '02'}"
+  Stream params: sortdict([('Compression', 'BZ')])
+  changegroup -- "sortdict([('version', '02')])"
       45993d65fe9dc3c6d8764b9c3b07fa831ee7d92d
   $ cd ..
 

tests/test-strip.t

@@ -210,8 +210,8 b''
   summary:     b
   
   $ hg debugbundle .hg/strip-backup/*
-  Stream params: {'Compression': 'BZ'}
-  changegroup -- "{'version': '02'}"
+  Stream params: sortdict([('Compression', 'BZ')])
+  changegroup -- "sortdict([('version', '02')])"
       264128213d290d868c54642d13aeaa3675551a78
   $ hg pull .hg/strip-backup/*
   pulling from .hg/strip-backup/264128213d29-0b39d6bf-backup.hg