# HG changeset patch
# User Matt Mackall <mpm@selenic.com>
# Date 1380649499 25200
# Node ID 5c0dc243fe5b921589688633a6d2fbe4756d5d1c
# Parent  b00ba31313c39b38a6e724c1162787ed75fa66a5# Parent  1aaefba2a3a9dc8b37d29b9c437876407e87c16f
merge with stable

diff -r 1aaefba2a3a9 -r 5c0dc243fe5b contrib/check-code.py
--- a/contrib/check-code.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/contrib/check-code.py	Tue Oct 01 10:44:59 2013 -0700
@@ -61,11 +61,13 @@
     (r'pushd|popd', "don't use 'pushd' or 'popd', use 'cd'"),
     (r'\W\$?\(\([^\)\n]*\)\)', "don't use (()) or $(()), use 'expr'"),
     (r'grep.*-q', "don't use 'grep -q', redirect to /dev/null"),
+    (r'(?<!hg )grep.*-a', "don't use 'grep -a', use in-line python"),
     (r'sed.*-i', "don't use 'sed -i', use a temporary file"),
     (r'\becho\b.*\\n', "don't use 'echo \\n', use printf"),
     (r'echo -n', "don't use 'echo -n', use printf"),
     (r'(^| )wc[^|]*$\n(?!.*\(re\))', "filter wc output"),
     (r'head -c', "don't use 'head -c', use 'dd'"),
+    (r'tail -n', "don't use the '-n' option to tail, just use '-<num>'"),
     (r'sha1sum', "don't use sha1sum, use $TESTDIR/md5sum.py"),
     (r'ls.*-\w*R', "don't use 'ls -R', use 'find'"),
     (r'printf.*[^\\]\\([1-9]|0\d)', "don't use 'printf \NNN', use Python"),
@@ -160,6 +162,9 @@
      "tuple parameter unpacking not available in Python 3+"),
     (r'lambda\s*\(.*,.*\)',
      "tuple parameter unpacking not available in Python 3+"),
+    (r'import (.+,[^.]+\.[^.]+|[^.]+\.[^.]+,)',
+     '2to3 can\'t always rewrite "import qux, foo.bar", '
+     'use "import foo.bar" on its own line instead.'),
     (r'(?<!def)\s+(cmp)\(', "cmp is not available in Python 3+"),
     (r'\breduce\s*\(.*', "reduce is not available in Python 3+"),
     (r'\.has_key\b', "dict.has_key is not available in Python 3+"),
@@ -285,8 +290,9 @@
     (r'(while|if|do|for)\(', "use space after while/if/do/for"),
     (r'return\(', "return is not a function"),
     (r' ;', "no space before ;"),
+    (r'[)][{]', "space between ) and {"),
     (r'\w+\* \w+', "use int *foo, not int* foo"),
-    (r'\([^\)]+\) \w+', "use (int)foo, not (int) foo"),
+    (r'\W\([^\)]+\) \w+', "use (int)foo, not (int) foo"),
     (r'\w+ (\+\+|--)', "use foo++, not foo ++"),
     (r'\w,\w', "missing whitespace after ,"),
     (r'^[^#]\w[+/*]\w', "missing whitespace in expression"),
@@ -324,7 +330,7 @@
 checks = [
     ('python', r'.*\.(py|cgi)$', pyfilters, pypats),
     ('test script', r'(.*/)?test-[^.~]*$', testfilters, testpats),
-    ('c', r'.*\.c$', cfilters, cpats),
+    ('c', r'.*\.[ch]$', cfilters, cpats),
     ('unified test', r'.*\.t$', utestfilters, utestpats),
     ('layering violation repo in revlog', r'mercurial/revlog\.py', pyfilters,
      inrevlogpats),
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b contrib/debugshell.py
--- a/contrib/debugshell.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/contrib/debugshell.py	Tue Oct 01 10:44:59 2013 -0700
@@ -1,20 +1,52 @@
 # debugshell extension
 """a python shell with repo, changelog & manifest objects"""
 
+import sys
 import mercurial
 import code
 
-def debugshell(ui, repo, **opts):
+def pdb(ui, repo, msg, **opts):
     objects = {
         'mercurial': mercurial,
         'repo': repo,
         'cl': repo.changelog,
         'mf': repo.manifest,
     }
+
+    code.interact(msg, local=objects)
+
+def ipdb(ui, repo, msg, **opts):
+    import IPython
+
+    cl = repo.changelog
+    mf = repo.manifest
+    cl, mf # use variables to appease pyflakes
+
+    IPython.embed()
+
+def debugshell(ui, repo, **opts):
     bannermsg = "loaded repo : %s\n" \
                 "using source: %s" % (repo.root,
                                       mercurial.__path__[0])
-    code.interact(bannermsg, local=objects)
+
+    pdbmap = {
+        'pdb'  : 'code',
+        'ipdb' : 'IPython'
+    }
+
+    debugger = ui.config("ui", "debugger")
+    if not debugger:
+        debugger = 'pdb'
+
+    # if IPython doesn't exist, fallback to code.interact
+    try:
+        __import__(pdbmap[debugger])
+    except ImportError:
+        ui.warn("%s debugger specified but %s module was not found\n"
+                % (debugger, pdbmap[debugger]))
+        debugger = 'pdb'
+
+    getattr(sys.modules[__name__], debugger)(ui, repo, bannermsg, **opts)
 
 cmdtable = {
     "debugshell|dbsh": (debugshell, [])
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b contrib/perf.py
--- a/contrib/perf.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/contrib/perf.py	Tue Oct 01 10:44:59 2013 -0700
@@ -87,7 +87,8 @@
 
 @command('perftags')
 def perftags(ui, repo):
-    import mercurial.changelog, mercurial.manifest
+    import mercurial.changelog
+    import mercurial.manifest
     def t():
         repo.changelog = mercurial.changelog.changelog(repo.sopener)
         repo.manifest = mercurial.manifest.manifest(repo.sopener)
@@ -171,13 +172,14 @@
         copies.pathcopies(ctx1, ctx2)
     timer(d)
 
-@command('perfmanifest')
-def perfmanifest(ui, repo):
+@command('perfmanifest', [], 'REV')
+def perfmanifest(ui, repo, rev):
+    ctx = scmutil.revsingle(repo, rev, rev)
+    t = ctx.manifestnode()
     def d():
-        t = repo.manifest.tip()
+        repo.manifest._mancache.clear()
+        repo.manifest._cache = None
         repo.manifest.read(t)
-        repo.manifest.mapcache = None
-        repo.manifest._cache = None
     timer(d)
 
 @command('perfchangeset')
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b contrib/plan9/9mail
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contrib/plan9/9mail	Tue Oct 01 10:44:59 2013 -0700
@@ -0,0 +1,26 @@
+#!/bin/rc
+# 9mail - Mercurial email wrapper for upas/marshal
+
+fn usage {
+	echo >[1=2] usage: mercurial/9mail -f from to [cc]
+	exit usage
+}
+
+from=()
+cc=()
+to=()
+
+switch($1){
+case -f
+	from=$2
+case *
+	usage
+}
+
+to=($3)
+if(~ $#* 4)
+	cc=(-C $4)
+
+upasname=$from
+upas/marshal $cc $to
+
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b contrib/plan9/hgrc.d/9diff.rc
--- a/contrib/plan9/hgrc.d/9diff.rc	Tue Oct 01 00:12:34 2013 +0900
+++ b/contrib/plan9/hgrc.d/9diff.rc	Tue Oct 01 10:44:59 2013 -0700
@@ -4,4 +4,4 @@
 extdiff =
 
 [extdiff]
-9diff = 9diff -cm $parent $child $root
+9diff = /bin/mercurial/9diff -cm $parent $child $root
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b contrib/plan9/hgrc.d/9mail.rc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contrib/plan9/hgrc.d/9mail.rc	Tue Oct 01 10:44:59 2013 -0700
@@ -0,0 +1,4 @@
+# The 9mail to support patchbomb and other email wrappers
+[email]
+method = /bin/mercurial/9mail
+
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b hgext/convert/subversion.py
--- a/hgext/convert/subversion.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/hgext/convert/subversion.py	Tue Oct 01 10:44:59 2013 -0700
@@ -2,7 +2,8 @@
 #
 # Copyright(C) 2007 Daniel Holth et al
 
-import os, re, sys, tempfile, urllib, urllib2, xml.dom.minidom
+import os, re, sys, tempfile, urllib, urllib2
+import xml.dom.minidom
 import cPickle as pickle
 
 from mercurial import strutil, scmutil, util, encoding
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b hgext/factotum.py
--- a/hgext/factotum.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/hgext/factotum.py	Tue Oct 01 10:44:59 2013 -0700
@@ -101,7 +101,7 @@
         user, passwd = auth.get('username'), auth.get('password')
     if not user or not passwd:
         if not prefix:
-            prefix = '*'
+            prefix = realm.split(' ')[0].lower()
         params = 'service=%s prefix=%s' % (_service, prefix)
         if user:
             params = '%s user=%s' % (params, user)
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b hgext/histedit.py
--- a/hgext/histedit.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/hgext/histedit.py	Tue Oct 01 10:44:59 2013 -0700
@@ -419,10 +419,6 @@
     if revs:
         revs = [repo.lookup(rev) for rev in revs]
 
-    # hexlify nodes from outgoing, because we're going to parse
-    # parent[0] using revsingle below, and if the binary hash
-    # contains special revset characters like ":" the revset
-    # parser can choke.
     outgoing = discovery.findcommonoutgoing(repo, other, revs, force=force)
     if not outgoing.missing:
         raise util.Abort(_('no outgoing ancestors'))
@@ -519,7 +515,6 @@
 
     if goal == 'continue':
         (parentctxnode, rules, keep, topmost, replacements) = readstate(repo)
-        currentparent, wantnull = repo.dirstate.parents()
         parentctx = repo[parentctxnode]
         parentctx, repl = bootstrapcontinue(ui, repo, parentctx, rules, opts)
         replacements.extend(repl)
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b hgext/largefiles/__init__.py
--- a/hgext/largefiles/__init__.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/hgext/largefiles/__init__.py	Tue Oct 01 10:44:59 2013 -0700
@@ -105,16 +105,26 @@
 command.
 '''
 
-from mercurial import commands
+from mercurial import commands, localrepo, extensions
 
 import lfcommands
 import reposetup
-import uisetup
+import uisetup as uisetupmod
 
 testedwith = 'internal'
 
 reposetup = reposetup.reposetup
-uisetup = uisetup.uisetup
+
+def featuresetup(ui, supported):
+    for name, module in extensions.extensions(ui):
+        if __name__ == module.__name__:
+            # don't die on seeing a repo with the largefiles requirement
+            supported |= set(['largefiles'])
+            return
+
+def uisetup(ui):
+    localrepo.localrepository.featuresetupfuncs.add(featuresetup)
+    uisetupmod.uisetup(ui)
 
 commands.norepo += " lfconvert"
 
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b hgext/largefiles/overrides.py
--- a/hgext/largefiles/overrides.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/hgext/largefiles/overrides.py	Tue Oct 01 10:44:59 2013 -0700
@@ -315,7 +315,7 @@
                     lfdirstate.normal(lfile)
             lfdirstate.write()
             if mod:
-                raise util.Abort(_('uncommitted local changes'))
+                raise util.Abort(_('uncommitted changes'))
         # XXX handle removed differently
         if not opts['clean']:
             for lfile in unsure + modified + added:
@@ -717,7 +717,6 @@
                 ui.debug('--update and --rebase are not compatible, ignoring '
                          'the update flag\n')
             del opts['rebase']
-            cmdutil.bailifchanged(repo)
             origpostincoming = commands.postincoming
             def _dummy(*args, **kwargs):
                 pass
@@ -947,7 +946,7 @@
     modified, added, removed, deleted = repo.status()[:4]
     repo.lfstatus = False
     if modified or added or removed or deleted:
-        raise util.Abort(_('outstanding uncommitted changes'))
+        raise util.Abort(_('uncommitted changes'))
 
 # Fetch doesn't use cmdutil.bailifchanged so override it to add the check
 def overridefetch(orig, ui, repo, *pats, **opts):
@@ -955,7 +954,7 @@
     modified, added, removed, deleted = repo.status()[:4]
     repo.lfstatus = False
     if modified or added or removed or deleted:
-        raise util.Abort(_('outstanding uncommitted changes'))
+        raise util.Abort(_('uncommitted changes'))
     return orig(ui, repo, *pats, **opts)
 
 def overrideforget(orig, ui, repo, *pats, **opts):
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b hgext/largefiles/reposetup.py
--- a/hgext/largefiles/reposetup.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/hgext/largefiles/reposetup.py	Tue Oct 01 10:44:59 2013 -0700
@@ -10,8 +10,7 @@
 import copy
 import os
 
-from mercurial import context, error, manifest, match as match_, util, \
-    discovery
+from mercurial import error, manifest, match as match_, util, discovery
 from mercurial import node as node_
 from mercurial.i18n import _
 from mercurial import localrepo
@@ -92,14 +91,8 @@
             else:
                 # some calls in this function rely on the old version of status
                 self.lfstatus = False
-                if isinstance(node1, context.changectx):
-                    ctx1 = node1
-                else:
-                    ctx1 = self[node1]
-                if isinstance(node2, context.changectx):
-                    ctx2 = node2
-                else:
-                    ctx2 = self[node2]
+                ctx1 = self[node1]
+                ctx2 = self[node2]
                 working = ctx2.rev() is None
                 parentworking = working and ctx1 == self['.']
 
@@ -414,6 +407,14 @@
                 wlock.release()
 
         def push(self, remote, force=False, revs=None, newbranch=False):
+            if remote.local():
+                missing = set(self.requirements) - remote.local().supported
+                if missing:
+                    msg = _("required features are not"
+                            " supported in the destination:"
+                            " %s") % (', '.join(sorted(missing)))
+                    raise util.Abort(msg)
+
             outgoing = discovery.findcommonoutgoing(repo, remote.peer(),
                                                     force=force)
             if outgoing.missing:
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b hgext/largefiles/uisetup.py
--- a/hgext/largefiles/uisetup.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/hgext/largefiles/uisetup.py	Tue Oct 01 10:44:59 2013 -0700
@@ -9,7 +9,7 @@
 '''setup for largefiles extension: uisetup'''
 
 from mercurial import archival, cmdutil, commands, extensions, filemerge, hg, \
-    httppeer, localrepo, merge, scmutil, sshpeer, wireproto, revset
+    httppeer, merge, scmutil, sshpeer, wireproto, revset
 from mercurial.i18n import _
 from mercurial.hgweb import hgweb_mod, webcommands
 from mercurial.subrepo import hgsubrepo
@@ -152,9 +152,6 @@
     sshpeer.sshpeer._callstream = proto.sshrepocallstream
     httppeer.httppeer._callstream = proto.httprepocallstream
 
-    # don't die on seeing a repo with the largefiles requirement
-    localrepo.localrepository.supported |= set(['largefiles'])
-
     # override some extensions' stuff as well
     for name, module in extensions.extensions():
         if name == 'fetch':
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b hgext/mq.py
--- a/hgext/mq.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/hgext/mq.py	Tue Oct 01 10:44:59 2013 -0700
@@ -57,15 +57,19 @@
 make them behave as if --keep-changes were passed, and non-conflicting
 local changes will be tolerated and preserved. If incompatible options
 such as -f/--force or --exact are passed, this setting is ignored.
+
+This extension used to provide a strip command. This command now lives
+in the strip extension.
 '''
 
 from mercurial.i18n import _
 from mercurial.node import bin, hex, short, nullid, nullrev
 from mercurial.lock import release
 from mercurial import commands, cmdutil, hg, scmutil, util, revset
-from mercurial import repair, extensions, error, phases, bookmarks
+from mercurial import extensions, error, phases
 from mercurial import patch as patchmod
 from mercurial import localrepo
+from mercurial import subrepo
 import os, re, errno, shutil
 
 commands.norepo += " qclone"
@@ -76,6 +80,22 @@
 command = cmdutil.command(cmdtable)
 testedwith = 'internal'
 
+# force load strip extension formely included in mq and import some utility
+try:
+    stripext = extensions.find('strip')
+except KeyError:
+    # note: load is lazy so we could avoid the try-except,
+    # but I (marmoute) prefer this explicite code.
+    class dummyui(object):
+        def debug(self, msg):
+            pass
+    stripext = extensions.load(dummyui(), 'strip', '')
+
+strip = stripext.strip
+checksubstate = stripext.checksubstate
+checklocalchanges = stripext.checklocalchanges
+
+
 # Patch names looks like unix-file names.
 # They must be joinable with queue directory and result in the patch path.
 normname = util.normpath
@@ -282,15 +302,11 @@
             phase = phases.secret
     if phase is not None:
         backup = repo.ui.backupconfig('phases', 'new-commit')
-    # Marking the repository as committing an mq patch can be used
-    # to optimize operations like branchtags().
-    repo._committingpatch = True
     try:
         if phase is not None:
             repo.ui.setconfig('phases', 'new-commit', phase)
         return repo.commit(*args, **kwargs)
     finally:
-        repo._committingpatch = False
         if phase is not None:
             repo.ui.restoreconfig(backup)
 
@@ -606,7 +622,7 @@
 
         # apply failed, strip away that rev and merge.
         hg.clean(repo, head)
-        self.strip(repo, [n], update=False, backup='strip')
+        strip(self.ui, repo, [n], update=False, backup='strip')
 
         ctx = repo[rev]
         ret = hg.merge(repo, rev)
@@ -631,6 +647,14 @@
         return (0, n)
 
     def qparents(self, repo, rev=None):
+        """return the mq handled parent or p1
+
+        In some case where mq get himself in being the parent of a merge the
+        paappropriate parent may be p2.
+        (eg: an in progress merge started with mq disabled)
+
+        If no parent are managed by mq, p1 is returned.
+        """
         if rev is None:
             (p1, p2) = repo.dirstate.parents()
             if p2 == nullid:
@@ -800,6 +824,14 @@
                 p1, p2 = repo.dirstate.parents()
                 repo.setparents(p1, merge)
 
+            if all_files and '.hgsubstate' in all_files:
+                wctx = repo['.']
+                mctx = actx = repo[None]
+                overwrite = False
+                mergedsubstate = subrepo.submerge(repo, wctx, mctx, actx,
+                    overwrite)
+                files += mergedsubstate.keys()
+
             match = scmutil.matchfiles(repo, files or [])
             oldtip = repo['tip']
             n = newcommit(repo, None, message, ph.user, ph.date, match=match,
@@ -940,23 +972,6 @@
             return top, patch
         return None, None
 
-    def checksubstate(self, repo, baserev=None):
-        '''return list of subrepos at a different revision than substate.
-        Abort if any subrepos have uncommitted changes.'''
-        inclsubs = []
-        wctx = repo[None]
-        if baserev:
-            bctx = repo[baserev]
-        else:
-            bctx = wctx.parents()[0]
-        for s in sorted(wctx.substate):
-            if wctx.sub(s).dirty(True):
-                raise util.Abort(
-                    _("uncommitted changes in subrepository %s") % s)
-            elif s not in bctx.substate or bctx.sub(s).dirty():
-                inclsubs.append(s)
-        return inclsubs
-
     def putsubstate2changes(self, substatestate, changes):
         for files in changes[:3]:
             if '.hgsubstate' in files:
@@ -969,18 +984,14 @@
         else: # modified
             changes[0].append('.hgsubstate')
 
-    def localchangesfound(self, refresh=True):
+    def checklocalchanges(self, repo, force=False, refresh=True):
+        excsuffix = ''
         if refresh:
-            raise util.Abort(_("local changes found, refresh first"))
-        else:
-            raise util.Abort(_("local changes found"))
-
-    def checklocalchanges(self, repo, force=False, refresh=True):
-        cmdutil.checkunfinished(repo)
-        m, a, r, d = repo.status()[:4]
-        if (m or a or r or d) and not force:
-            self.localchangesfound(refresh)
-        return m, a, r, d
+            excsuffix = ', refresh first'
+            # plain versions for i18n tool to detect them
+            _("local changes found, refresh first")
+            _("local changed subrepos found, refresh first")
+        return checklocalchanges(repo, force, excsuffix)
 
     _reserved = ('series', 'status', 'guards', '.', '..')
     def checkreservedname(self, name):
@@ -1021,7 +1032,7 @@
         diffopts = self.diffopts({'git': opts.get('git')})
         if opts.get('checkname', True):
             self.checkpatchname(patchfn)
-        inclsubs = self.checksubstate(repo)
+        inclsubs = checksubstate(repo)
         if inclsubs:
             inclsubs.append('.hgsubstate')
             substatestate = repo.dirstate['.hgsubstate']
@@ -1111,22 +1122,6 @@
         finally:
             release(wlock)
 
-    def strip(self, repo, revs, update=True, backup="all", force=None):
-        wlock = lock = None
-        try:
-            wlock = repo.wlock()
-            lock = repo.lock()
-
-            if update:
-                self.checklocalchanges(repo, force=force, refresh=False)
-                urev = self.qparents(repo, revs[0])
-                hg.clean(repo, urev)
-                repo.dirstate.write()
-
-            repair.strip(self.ui, repo, revs, backup)
-        finally:
-            release(lock, wlock)
-
     def isapplied(self, patch):
         """returns (index, rev, patch)"""
         for i, a in enumerate(self.applied):
@@ -1435,7 +1430,7 @@
 
                 tobackup = set(a + m + r) & tobackup
                 if keepchanges and tobackup:
-                    self.localchangesfound()
+                    raise util.Abort(_("local changes found, refresh first"))
                 self.backup(repo, tobackup)
 
                 for f in a:
@@ -1449,7 +1444,9 @@
             for patch in reversed(self.applied[start:end]):
                 self.ui.status(_("popping %s\n") % patch.name)
             del self.applied[start:end]
-            self.strip(repo, [rev], update=False, backup='strip')
+            strip(self.ui, repo, [rev], update=False, backup='strip')
+            for s, state in repo['.'].substate.items():
+                repo['.'].sub(s).get(state)
             if self.applied:
                 self.ui.write(_("now at: %s\n") % self.applied[-1].name)
             else:
@@ -1493,7 +1490,7 @@
             cparents = repo.changelog.parents(top)
             patchparent = self.qparents(repo, top)
 
-            inclsubs = self.checksubstate(repo, hex(patchparent))
+            inclsubs = checksubstate(repo, hex(patchparent))
             if inclsubs:
                 inclsubs.append('.hgsubstate')
                 substatestate = repo.dirstate['.hgsubstate']
@@ -1650,8 +1647,7 @@
                 repo.setparents(*cparents)
                 self.applied.pop()
                 self.applieddirty = True
-                self.strip(repo, [top], update=False,
-                           backup='strip')
+                strip(self.ui, repo, [top], update=False, backup='strip')
             except: # re-raises
                 repo.dirstate.invalidate()
                 raise
@@ -1823,7 +1819,7 @@
                     update = True
                 else:
                     update = False
-                self.strip(repo, [rev], update=update, backup='strip')
+                strip(self.ui, repo, [rev], update=update, backup='strip')
         if qpp:
             self.ui.warn(_("saved queue repository parents: %s %s\n") %
                          (short(qpp[0]), short(qpp[1])))
@@ -2304,7 +2300,7 @@
         if qbase:
             ui.note(_('stripping applied patches from destination '
                       'repository\n'))
-            repo.mq.strip(repo, [qbase], update=False, backup=None)
+            strip(ui, repo, [qbase], update=False, backup=None)
         if not opts.get('noupdate'):
             ui.note(_('updating destination repository\n'))
             hg.update(repo, repo.changelog.tip())
@@ -2919,158 +2915,6 @@
         q.savedirty()
     return 0
 
-@command("strip",
-         [
-          ('r', 'rev', [], _('strip specified revision (optional, '
-                               'can specify revisions without this '
-                               'option)'), _('REV')),
-          ('f', 'force', None, _('force removal of changesets, discard '
-                                 'uncommitted changes (no backup)')),
-          ('b', 'backup', None, _('bundle only changesets with local revision'
-                                  ' number greater than REV which are not'
-                                  ' descendants of REV (DEPRECATED)')),
-          ('', 'no-backup', None, _('no backups')),
-          ('', 'nobackup', None, _('no backups (DEPRECATED)')),
-          ('n', '', None, _('ignored  (DEPRECATED)')),
-          ('k', 'keep', None, _("do not modify working copy during strip")),
-          ('B', 'bookmark', '', _("remove revs only reachable from given"
-                                  " bookmark"))],
-          _('hg strip [-k] [-f] [-n] [-B bookmark] [-r] REV...'))
-def strip(ui, repo, *revs, **opts):
-    """strip changesets and all their descendants from the repository
-
-    The strip command removes the specified changesets and all their
-    descendants. If the working directory has uncommitted changes, the
-    operation is aborted unless the --force flag is supplied, in which
-    case changes will be discarded.
-
-    If a parent of the working directory is stripped, then the working
-    directory will automatically be updated to the most recent
-    available ancestor of the stripped parent after the operation
-    completes.
-
-    Any stripped changesets are stored in ``.hg/strip-backup`` as a
-    bundle (see :hg:`help bundle` and :hg:`help unbundle`). They can
-    be restored by running :hg:`unbundle .hg/strip-backup/BUNDLE`,
-    where BUNDLE is the bundle file created by the strip. Note that
-    the local revision numbers will in general be different after the
-    restore.
-
-    Use the --no-backup option to discard the backup bundle once the
-    operation completes.
-
-    Strip is not a history-rewriting operation and can be used on
-    changesets in the public phase. But if the stripped changesets have
-    been pushed to a remote repository you will likely pull them again.
-
-    Return 0 on success.
-    """
-    backup = 'all'
-    if opts.get('backup'):
-        backup = 'strip'
-    elif opts.get('no_backup') or opts.get('nobackup'):
-        backup = 'none'
-
-    cl = repo.changelog
-    revs = list(revs) + opts.get('rev')
-    revs = set(scmutil.revrange(repo, revs))
-
-    if opts.get('bookmark'):
-        mark = opts.get('bookmark')
-        marks = repo._bookmarks
-        if mark not in marks:
-            raise util.Abort(_("bookmark '%s' not found") % mark)
-
-        # If the requested bookmark is not the only one pointing to a
-        # a revision we have to only delete the bookmark and not strip
-        # anything. revsets cannot detect that case.
-        uniquebm = True
-        for m, n in marks.iteritems():
-            if m != mark and n == repo[mark].node():
-                uniquebm = False
-                break
-        if uniquebm:
-            rsrevs = repo.revs("ancestors(bookmark(%s)) - "
-                               "ancestors(head() and not bookmark(%s)) - "
-                               "ancestors(bookmark() and not bookmark(%s))",
-                               mark, mark, mark)
-            revs.update(set(rsrevs))
-        if not revs:
-            del marks[mark]
-            marks.write()
-            ui.write(_("bookmark '%s' deleted\n") % mark)
-
-    if not revs:
-        raise util.Abort(_('empty revision set'))
-
-    descendants = set(cl.descendants(revs))
-    strippedrevs = revs.union(descendants)
-    roots = revs.difference(descendants)
-
-    update = False
-    # if one of the wdir parent is stripped we'll need
-    # to update away to an earlier revision
-    for p in repo.dirstate.parents():
-        if p != nullid and cl.rev(p) in strippedrevs:
-            update = True
-            break
-
-    rootnodes = set(cl.node(r) for r in roots)
-
-    q = repo.mq
-    if q.applied:
-        # refresh queue state if we're about to strip
-        # applied patches
-        if cl.rev(repo.lookup('qtip')) in strippedrevs:
-            q.applieddirty = True
-            start = 0
-            end = len(q.applied)
-            for i, statusentry in enumerate(q.applied):
-                if statusentry.node in rootnodes:
-                    # if one of the stripped roots is an applied
-                    # patch, only part of the queue is stripped
-                    start = i
-                    break
-            del q.applied[start:end]
-            q.savedirty()
-
-    revs = sorted(rootnodes)
-    if update and opts.get('keep'):
-        wlock = repo.wlock()
-        try:
-            urev = repo.mq.qparents(repo, revs[0])
-            uctx = repo[urev]
-
-            # only reset the dirstate for files that would actually change
-            # between the working context and uctx
-            descendantrevs = repo.revs("%s::." % uctx.rev())
-            changedfiles = []
-            for rev in descendantrevs:
-                # blindly reset the files, regardless of what actually changed
-                changedfiles.extend(repo[rev].files())
-
-            # reset files that only changed in the dirstate too
-            dirstate = repo.dirstate
-            dirchanges = [f for f in dirstate if dirstate[f] != 'n']
-            changedfiles.extend(dirchanges)
-
-            repo.dirstate.rebuild(urev, uctx.manifest(), changedfiles)
-            repo.dirstate.write()
-            update = False
-        finally:
-            wlock.release()
-
-    if opts.get('bookmark'):
-        if mark == repo._bookmarkcurrent:
-            bookmarks.setcurrent(repo, None)
-        del marks[mark]
-        marks.write()
-        ui.write(_("bookmark '%s' deleted\n") % mark)
-
-    repo.mq.strip(repo, revs, backup=backup, update=update,
-                  force=opts.get('force'))
-
-    return 0
 
 @command("qselect",
          [('n', 'none', None, _('disable all guards')),
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b hgext/notify.py
--- a/hgext/notify.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/hgext/notify.py	Tue Oct 01 10:44:59 2013 -0700
@@ -133,9 +133,13 @@
 
 '''
 
+import email, socket, time
+# On python2.4 you have to import this by name or they fail to
+# load. This was not a problem on Python 2.7.
+import email.Parser
 from mercurial.i18n import _
 from mercurial import patch, cmdutil, templater, util, mail
-import email.Parser, email.Errors, fnmatch, socket, time
+import fnmatch
 
 testedwith = 'internal'
 
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b hgext/patchbomb.py
--- a/hgext/patchbomb.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/hgext/patchbomb.py	Tue Oct 01 10:44:59 2013 -0700
@@ -46,8 +46,12 @@
 '''
 
 import os, errno, socket, tempfile, cStringIO
-import email.MIMEMultipart, email.MIMEBase
-import email.Utils, email.Encoders, email.Generator
+import email
+# On python2.4 you have to import these by name or they fail to
+# load. This was not a problem on Python 2.7.
+import email.Generator
+import email.MIMEMultipart
+
 from mercurial import cmdutil, commands, hg, mail, patch, util
 from mercurial import scmutil
 from mercurial.i18n import _
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b hgext/progress.py
--- a/hgext/progress.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/hgext/progress.py	Tue Oct 01 10:44:59 2013 -0700
@@ -239,6 +239,13 @@
             # this one are also closed
             if topic in self.topics:
                 self.topics = self.topics[:self.topics.index(topic)]
+                # reset the last topic to the one we just unwound to,
+                # so that higher-level topics will be stickier than
+                # lower-level topics
+                if self.topics:
+                    self.lasttopic = self.topics[-1]
+                else:
+                    self.lasttopic = None
         else:
             if topic not in self.topics:
                 self.starttimes[topic] = now
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b hgext/rebase.py
--- a/hgext/rebase.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/hgext/rebase.py	Tue Oct 01 10:44:59 2013 -0700
@@ -769,7 +769,6 @@
                      'the update flag\n')
 
         movemarkfrom = repo['.'].node()
-        cmdutil.bailifchanged(repo)
         revsprepull = len(repo)
         origpostincoming = commands.postincoming
         def _dummy(*args, **kwargs):
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b hgext/strip.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hgext/strip.py	Tue Oct 01 10:44:59 2013 -0700
@@ -0,0 +1,217 @@
+"""strip changesets and their descendents from history
+
+This extension allows to strip changesets and all their descendants from the
+repository. See the command help for details.
+"""
+from mercurial.i18n import _
+from mercurial.node import nullid
+from mercurial.lock import release
+from mercurial import cmdutil, hg, scmutil, util
+from mercurial import repair, bookmarks
+
+cmdtable = {}
+command = cmdutil.command(cmdtable)
+testedwith = 'internal'
+
+def checksubstate(repo, baserev=None):
+    '''return list of subrepos at a different revision than substate.
+    Abort if any subrepos have uncommitted changes.'''
+    inclsubs = []
+    wctx = repo[None]
+    if baserev:
+        bctx = repo[baserev]
+    else:
+        bctx = wctx.parents()[0]
+    for s in sorted(wctx.substate):
+        if wctx.sub(s).dirty(True):
+            raise util.Abort(
+                _("uncommitted changes in subrepository %s") % s)
+        elif s not in bctx.substate or bctx.sub(s).dirty():
+            inclsubs.append(s)
+    return inclsubs
+
+def checklocalchanges(repo, force=False, excsuffix=''):
+    cmdutil.checkunfinished(repo)
+    m, a, r, d = repo.status()[:4]
+    if not force:
+        if (m or a or r or d):
+            _("local changes found") # i18n tool detection
+            raise util.Abort(_("local changes found" + excsuffix))
+        if checksubstate(repo):
+            _("local changed subrepos found") # i18n tool detection
+            raise util.Abort(_("local changed subrepos found" + excsuffix))
+    return m, a, r, d
+
+def strip(ui, repo, revs, update=True, backup="all", force=None):
+    wlock = lock = None
+    try:
+        wlock = repo.wlock()
+        lock = repo.lock()
+
+        if update:
+            checklocalchanges(repo, force=force)
+            urev, p2 = repo.changelog.parents(revs[0])
+            if p2 != nullid and p2 in [x.node for x in repo.mq.applied]:
+                urev = p2
+            hg.clean(repo, urev)
+            repo.dirstate.write()
+
+        repair.strip(ui, repo, revs, backup)
+    finally:
+        release(lock, wlock)
+
+
+@command("strip",
+         [
+          ('r', 'rev', [], _('strip specified revision (optional, '
+                               'can specify revisions without this '
+                               'option)'), _('REV')),
+          ('f', 'force', None, _('force removal of changesets, discard '
+                                 'uncommitted changes (no backup)')),
+          ('b', 'backup', None, _('bundle only changesets with local revision'
+                                  ' number greater than REV which are not'
+                                  ' descendants of REV (DEPRECATED)')),
+          ('', 'no-backup', None, _('no backups')),
+          ('', 'nobackup', None, _('no backups (DEPRECATED)')),
+          ('n', '', None, _('ignored  (DEPRECATED)')),
+          ('k', 'keep', None, _("do not modify working copy during strip")),
+          ('B', 'bookmark', '', _("remove revs only reachable from given"
+                                  " bookmark"))],
+          _('hg strip [-k] [-f] [-n] [-B bookmark] [-r] REV...'))
+def stripcmd(ui, repo, *revs, **opts):
+    """strip changesets and all their descendants from the repository
+
+    The strip command removes the specified changesets and all their
+    descendants. If the working directory has uncommitted changes, the
+    operation is aborted unless the --force flag is supplied, in which
+    case changes will be discarded.
+
+    If a parent of the working directory is stripped, then the working
+    directory will automatically be updated to the most recent
+    available ancestor of the stripped parent after the operation
+    completes.
+
+    Any stripped changesets are stored in ``.hg/strip-backup`` as a
+    bundle (see :hg:`help bundle` and :hg:`help unbundle`). They can
+    be restored by running :hg:`unbundle .hg/strip-backup/BUNDLE`,
+    where BUNDLE is the bundle file created by the strip. Note that
+    the local revision numbers will in general be different after the
+    restore.
+
+    Use the --no-backup option to discard the backup bundle once the
+    operation completes.
+
+    Strip is not a history-rewriting operation and can be used on
+    changesets in the public phase. But if the stripped changesets have
+    been pushed to a remote repository you will likely pull them again.
+
+    Return 0 on success.
+    """
+    backup = 'all'
+    if opts.get('backup'):
+        backup = 'strip'
+    elif opts.get('no_backup') or opts.get('nobackup'):
+        backup = 'none'
+
+    cl = repo.changelog
+    revs = list(revs) + opts.get('rev')
+    revs = set(scmutil.revrange(repo, revs))
+
+    if opts.get('bookmark'):
+        mark = opts.get('bookmark')
+        marks = repo._bookmarks
+        if mark not in marks:
+            raise util.Abort(_("bookmark '%s' not found") % mark)
+
+        # If the requested bookmark is not the only one pointing to a
+        # a revision we have to only delete the bookmark and not strip
+        # anything. revsets cannot detect that case.
+        uniquebm = True
+        for m, n in marks.iteritems():
+            if m != mark and n == repo[mark].node():
+                uniquebm = False
+                break
+        if uniquebm:
+            rsrevs = repo.revs("ancestors(bookmark(%s)) - "
+                               "ancestors(head() and not bookmark(%s)) - "
+                               "ancestors(bookmark() and not bookmark(%s))",
+                               mark, mark, mark)
+            revs.update(set(rsrevs))
+        if not revs:
+            del marks[mark]
+            marks.write()
+            ui.write(_("bookmark '%s' deleted\n") % mark)
+
+    if not revs:
+        raise util.Abort(_('empty revision set'))
+
+    descendants = set(cl.descendants(revs))
+    strippedrevs = revs.union(descendants)
+    roots = revs.difference(descendants)
+
+    update = False
+    # if one of the wdir parent is stripped we'll need
+    # to update away to an earlier revision
+    for p in repo.dirstate.parents():
+        if p != nullid and cl.rev(p) in strippedrevs:
+            update = True
+            break
+
+    rootnodes = set(cl.node(r) for r in roots)
+
+    q = getattr(repo, 'mq', None)
+    if q is not None and q.applied:
+        # refresh queue state if we're about to strip
+        # applied patches
+        if cl.rev(repo.lookup('qtip')) in strippedrevs:
+            q.applieddirty = True
+            start = 0
+            end = len(q.applied)
+            for i, statusentry in enumerate(q.applied):
+                if statusentry.node in rootnodes:
+                    # if one of the stripped roots is an applied
+                    # patch, only part of the queue is stripped
+                    start = i
+                    break
+            del q.applied[start:end]
+            q.savedirty()
+
+    revs = sorted(rootnodes)
+    if update and opts.get('keep'):
+        wlock = repo.wlock()
+        try:
+            urev, p2 = repo.changelog.parents(revs[0])
+            if (util.safehasattr(repo, 'mq') and p2 != nullid
+                and p2 in [x.node for x in repo.mq.applied]):
+                urev = p2
+            uctx = repo[urev]
+
+            # only reset the dirstate for files that would actually change
+            # between the working context and uctx
+            descendantrevs = repo.revs("%s::." % uctx.rev())
+            changedfiles = []
+            for rev in descendantrevs:
+                # blindly reset the files, regardless of what actually changed
+                changedfiles.extend(repo[rev].files())
+
+            # reset files that only changed in the dirstate too
+            dirstate = repo.dirstate
+            dirchanges = [f for f in dirstate if dirstate[f] != 'n']
+            changedfiles.extend(dirchanges)
+
+            repo.dirstate.rebuild(urev, uctx.manifest(), changedfiles)
+            repo.dirstate.write()
+            update = False
+        finally:
+            wlock.release()
+
+    if opts.get('bookmark'):
+        if mark == repo._bookmarkcurrent:
+            bookmarks.setcurrent(repo, None)
+        del marks[mark]
+        marks.write()
+        ui.write(_("bookmark '%s' deleted\n") % mark)
+
+    strip(ui, repo, revs, backup=backup, update=update, force=opts.get('force'))
+
+    return 0
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/branchmap.py
--- a/mercurial/branchmap.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/branchmap.py	Tue Oct 01 10:44:59 2013 -0700
@@ -198,20 +198,7 @@
                 self.tipnode = cl.node(tiprev)
                 self.tiprev = tiprev
 
-        # There may be branches that cease to exist when the last commit in the
-        # branch was stripped.  This code filters them out.  Note that the
-        # branch that ceased to exist may not be in newbranches because
-        # newbranches is the set of candidate heads, which when you strip the
-        # last commit in a branch will be the parent branch.
-        droppednodes = []
-        for branch in self.keys():
-            nodes = [head for head in self[branch]
-                     if cl.hasnode(head)]
-            if not nodes:
-                droppednodes.extend(nodes)
-                del self[branch]
-        if ((not self.validfor(repo)) or (self.tipnode in droppednodes)):
-
+        if not self.validfor(repo):
             # cache key are not valid anymore
             self.tipnode = nullid
             self.tiprev = nullrev
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/bundlerepo.py
--- a/mercurial/bundlerepo.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/bundlerepo.py	Tue Oct 01 10:44:59 2013 -0700
@@ -120,7 +120,7 @@
             chain.append(iterrev)
             iterrev = self.index[iterrev][3]
         if text is None:
-            text = revlog.revlog.revision(self, iterrev)
+            text = self.baserevision(iterrev)
 
         while chain:
             delta = self._chunk(chain.pop())
@@ -130,6 +130,12 @@
         self._cache = (node, rev, text)
         return text
 
+    def baserevision(self, nodeorrev):
+        # Revlog subclasses may override 'revision' method to modify format of
+        # content retrieved from revlog. To use bundlerevlog with such class one
+        # needs to override 'baserevision' and make more specific call here.
+        return revlog.revlog.revision(self, nodeorrev)
+
     def addrevision(self, text, transaction, link, p1=None, p2=None, d=None):
         raise NotImplementedError
     def addgroup(self, revs, linkmapper, transaction):
@@ -146,12 +152,21 @@
         bundlerevlog.__init__(self, opener, self.indexfile, bundle,
                               linkmapper)
 
+    def baserevision(self, nodeorrev):
+        # Although changelog doesn't override 'revision' method, some extensions
+        # may replace this class with another that does. Same story with
+        # manifest and filelog classes.
+        return changelog.changelog.revision(self, nodeorrev)
+
 class bundlemanifest(bundlerevlog, manifest.manifest):
     def __init__(self, opener, bundle, linkmapper):
         manifest.manifest.__init__(self, opener)
         bundlerevlog.__init__(self, opener, self.indexfile, bundle,
                               linkmapper)
 
+    def baserevision(self, nodeorrev):
+        return manifest.manifest.revision(self, nodeorrev)
+
 class bundlefilelog(bundlerevlog, filelog.filelog):
     def __init__(self, opener, path, bundle, linkmapper, repo):
         filelog.filelog.__init__(self, opener, path)
@@ -159,6 +174,9 @@
                               linkmapper)
         self._repo = repo
 
+    def baserevision(self, nodeorrev):
+        return filelog.filelog.revision(self, nodeorrev)
+
     def _file(self, f):
         self._repo.file(f)
 
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/cmdutil.py
--- a/mercurial/cmdutil.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/cmdutil.py	Tue Oct 01 10:44:59 2013 -0700
@@ -84,7 +84,7 @@
         raise util.Abort(_('outstanding uncommitted merge'))
     modified, added, removed, deleted = repo.status()[:4]
     if modified or added or removed or deleted:
-        raise util.Abort(_("outstanding uncommitted changes"))
+        raise util.Abort(_('uncommitted changes'))
     ctx = repo[None]
     for s in sorted(ctx.substate):
         if ctx.sub(s).dirty():
@@ -1172,12 +1172,34 @@
                                'filenames'))
 
         # The slow path checks files modified in every changeset.
-        for i in sorted(revs):
-            ctx = change(i)
-            matches = filter(match, ctx.files())
-            if matches:
-                fncache[i] = matches
-                wanted.add(i)
+        # This is really slow on large repos, so compute the set lazily.
+        class lazywantedset(object):
+            def __init__(self):
+                self.set = set()
+                self.revs = set(revs)
+
+            # No need to worry about locality here because it will be accessed
+            # in the same order as the increasing window below.
+            def __contains__(self, value):
+                if value in self.set:
+                    return True
+                elif not value in self.revs:
+                    return False
+                else:
+                    self.revs.discard(value)
+                    ctx = change(value)
+                    matches = filter(match, ctx.files())
+                    if matches:
+                        fncache[value] = matches
+                        self.set.add(value)
+                        return True
+                    return False
+
+            def discard(self, value):
+                self.revs.discard(value)
+                self.set.discard(value)
+
+        wanted = lazywantedset()
 
     class followfilter(object):
         def __init__(self, onlyfirst=False):
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/commands.py
--- a/mercurial/commands.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/commands.py	Tue Oct 01 10:44:59 2013 -0700
@@ -12,7 +12,8 @@
 import hg, scmutil, util, revlog, copies, error, bookmarks
 import patch, help, encoding, templatekw, discovery
 import archival, changegroup, cmdutil, hbisect
-import sshserver, hgweb, hgweb.server, commandserver
+import sshserver, hgweb, commandserver
+from hgweb import server as hgweb_server
 import merge as mergemod
 import minirst, revset, fileset
 import dagparser, context, simplemerge, graphmod
@@ -1923,6 +1924,7 @@
     util.writefile('.debugfsinfo', '')
     ui.write(('exec: %s\n') % (util.checkexec(path) and 'yes' or 'no'))
     ui.write(('symlink: %s\n') % (util.checklink(path) and 'yes' or 'no'))
+    ui.write(('hardlink: %s\n') % (util.checknlink(path) and 'yes' or 'no'))
     ui.write(('case-sensitive: %s\n') % (util.checkcase('.debugfsinfo')
                                 and 'yes' or 'no'))
     os.unlink('.debugfsinfo')
@@ -4525,6 +4527,8 @@
             ret = hg.update(repo, checkout)
         except util.Abort, inst:
             ui.warn(_("not updating: %s\n") % str(inst))
+            if inst.hint:
+                ui.warn(_("(%s)\n") % inst.hint)
             return 0
         if not ret and not checkout:
             if bookmarks.update(repo, [movemarkfrom], repo['.'].node()):
@@ -5182,7 +5186,7 @@
     class service(object):
         def init(self):
             util.setsignalhandler()
-            self.httpd = hgweb.server.create_server(ui, app)
+            self.httpd = hgweb_server.create_server(ui, app)
 
             if opts['port'] and not ui.verbose:
                 return
@@ -5846,7 +5850,7 @@
     if check:
         c = repo[None]
         if c.dirty(merge=False, branch=False, missing=True):
-            raise util.Abort(_("uncommitted local changes"))
+            raise util.Abort(_("uncommitted changes"))
         if rev is None:
             rev = repo[repo[None].branch()].rev()
         mergemod._checkunknown(repo, repo[None], repo[rev])
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/context.py
--- a/mercurial/context.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/context.py	Tue Oct 01 10:44:59 2013 -0700
@@ -16,11 +16,197 @@
 
 propertycache = util.propertycache
 
-class changectx(object):
+class basectx(object):
+    """A basectx object represents the common logic for its children:
+    changectx: read-only context that is already present in the repo,
+    workingctx: a context that represents the working directory and can
+                be committed,
+    memctx: a context that represents changes in-memory and can also
+            be committed."""
+    def __new__(cls, repo, changeid='', *args, **kwargs):
+        if isinstance(changeid, basectx):
+            return changeid
+
+        o = super(basectx, cls).__new__(cls)
+
+        o._repo = repo
+        o._rev = nullrev
+        o._node = nullid
+
+        return o
+
+    def __str__(self):
+        return short(self.node())
+
+    def __int__(self):
+        return self.rev()
+
+    def __repr__(self):
+        return "<%s %s>" % (type(self).__name__, str(self))
+
+    def __eq__(self, other):
+        try:
+            return type(self) == type(other) and self._rev == other._rev
+        except AttributeError:
+            return False
+
+    def __ne__(self, other):
+        return not (self == other)
+
+    def __contains__(self, key):
+        return key in self._manifest
+
+    def __getitem__(self, key):
+        return self.filectx(key)
+
+    def __iter__(self):
+        for f in sorted(self._manifest):
+            yield f
+
+    @propertycache
+    def substate(self):
+        return subrepo.state(self, self._repo.ui)
+
+    def rev(self):
+        return self._rev
+    def node(self):
+        return self._node
+    def hex(self):
+        return hex(self.node())
+    def manifest(self):
+        return self._manifest
+    def phasestr(self):
+        return phases.phasenames[self.phase()]
+    def mutable(self):
+        return self.phase() > phases.public
+
+    def obsolete(self):
+        """True if the changeset is obsolete"""
+        return self.rev() in obsmod.getrevs(self._repo, 'obsolete')
+
+    def extinct(self):
+        """True if the changeset is extinct"""
+        return self.rev() in obsmod.getrevs(self._repo, 'extinct')
+
+    def unstable(self):
+        """True if the changeset is not obsolete but it's ancestor are"""
+        return self.rev() in obsmod.getrevs(self._repo, 'unstable')
+
+    def bumped(self):
+        """True if the changeset try to be a successor of a public changeset
+
+        Only non-public and non-obsolete changesets may be bumped.
+        """
+        return self.rev() in obsmod.getrevs(self._repo, 'bumped')
+
+    def divergent(self):
+        """Is a successors of a changeset with multiple possible successors set
+
+        Only non-public and non-obsolete changesets may be divergent.
+        """
+        return self.rev() in obsmod.getrevs(self._repo, 'divergent')
+
+    def troubled(self):
+        """True if the changeset is either unstable, bumped or divergent"""
+        return self.unstable() or self.bumped() or self.divergent()
+
+    def troubles(self):
+        """return the list of troubles affecting this changesets.
+
+        Troubles are returned as strings. possible values are:
+        - unstable,
+        - bumped,
+        - divergent.
+        """
+        troubles = []
+        if self.unstable():
+            troubles.append('unstable')
+        if self.bumped():
+            troubles.append('bumped')
+        if self.divergent():
+            troubles.append('divergent')
+        return troubles
+
+    def parents(self):
+        """return contexts for each parent changeset"""
+        return self._parents
+
+    def p1(self):
+        return self._parents[0]
+
+    def p2(self):
+        if len(self._parents) == 2:
+            return self._parents[1]
+        return changectx(self._repo, -1)
+
+    def _fileinfo(self, path):
+        if '_manifest' in self.__dict__:
+            try:
+                return self._manifest[path], self._manifest.flags(path)
+            except KeyError:
+                raise error.ManifestLookupError(self._node, path,
+                                                _('not found in manifest'))
+        if '_manifestdelta' in self.__dict__ or path in self.files():
+            if path in self._manifestdelta:
+                return (self._manifestdelta[path],
+                        self._manifestdelta.flags(path))
+        node, flag = self._repo.manifest.find(self._changeset[0], path)
+        if not node:
+            raise error.ManifestLookupError(self._node, path,
+                                            _('not found in manifest'))
+
+        return node, flag
+
+    def filenode(self, path):
+        return self._fileinfo(path)[0]
+
+    def flags(self, path):
+        try:
+            return self._fileinfo(path)[1]
+        except error.LookupError:
+            return ''
+
+    def sub(self, path):
+        return subrepo.subrepo(self, path)
+
+    def match(self, pats=[], include=None, exclude=None, default='glob'):
+        r = self._repo
+        return matchmod.match(r.root, r.getcwd(), pats,
+                              include, exclude, default,
+                              auditor=r.auditor, ctx=self)
+
+    def diff(self, ctx2=None, match=None, **opts):
+        """Returns a diff generator for the given contexts and matcher"""
+        if ctx2 is None:
+            ctx2 = self.p1()
+        if ctx2 is not None:
+            ctx2 = self._repo[ctx2]
+        diffopts = patch.diffopts(self._repo.ui, opts)
+        return patch.diff(self._repo, ctx2.node(), self.node(),
+                          match=match, opts=diffopts)
+
+    @propertycache
+    def _dirs(self):
+        return scmutil.dirs(self._manifest)
+
+    def dirs(self):
+        return self._dirs
+
+    def dirty(self):
+        return False
+
+class changectx(basectx):
     """A changecontext object makes access to data related to a particular
-    changeset convenient."""
+    changeset convenient. It represents a read-only context already presnt in
+    the repo."""
     def __init__(self, repo, changeid=''):
         """changeid is a revision number, node, or tag"""
+
+        # since basectx.__new__ already took care of copying the object, we
+        # don't need to do anything in __init__, so we just exit here
+        if isinstance(changeid, basectx):
+            return
+
         if changeid == '':
             changeid = '.'
         self._repo = repo
@@ -114,30 +300,12 @@
         raise error.RepoLookupError(
             _("unknown revision '%s'") % changeid)
 
-    def __str__(self):
-        return short(self.node())
-
-    def __int__(self):
-        return self.rev()
-
-    def __repr__(self):
-        return "<changectx %s>" % str(self)
-
     def __hash__(self):
         try:
             return hash(self._rev)
         except AttributeError:
             return id(self)
 
-    def __eq__(self, other):
-        try:
-            return self._rev == other._rev
-        except AttributeError:
-            return False
-
-    def __ne__(self, other):
-        return not (self == other)
-
     def __nonzero__(self):
         return self._rev != nullrev
 
@@ -160,33 +328,11 @@
             p = p[:-1]
         return [changectx(self._repo, x) for x in p]
 
-    @propertycache
-    def substate(self):
-        return subrepo.state(self, self._repo.ui)
-
-    def __contains__(self, key):
-        return key in self._manifest
-
-    def __getitem__(self, key):
-        return self.filectx(key)
-
-    def __iter__(self):
-        for f in sorted(self._manifest):
-            yield f
-
     def changeset(self):
         return self._changeset
-    def manifest(self):
-        return self._manifest
     def manifestnode(self):
         return self._changeset[0]
 
-    def rev(self):
-        return self._rev
-    def node(self):
-        return self._node
-    def hex(self):
-        return hex(self._node)
     def user(self):
         return self._changeset[1]
     def date(self):
@@ -207,25 +353,9 @@
         return self._repo.nodebookmarks(self._node)
     def phase(self):
         return self._repo._phasecache.phase(self._repo, self._rev)
-    def phasestr(self):
-        return phases.phasenames[self.phase()]
-    def mutable(self):
-        return self.phase() > phases.public
     def hidden(self):
         return self._rev in repoview.filterrevs(self._repo, 'visible')
 
-    def parents(self):
-        """return contexts for each parent changeset"""
-        return self._parents
-
-    def p1(self):
-        return self._parents[0]
-
-    def p2(self):
-        if len(self._parents) == 2:
-            return self._parents[1]
-        return changectx(self._repo, -1)
-
     def children(self):
         """return contexts for each child changeset"""
         c = self._repo.changelog.children(self._node)
@@ -239,80 +369,6 @@
         for d in self._repo.changelog.descendants([self._rev]):
             yield changectx(self._repo, d)
 
-    def obsolete(self):
-        """True if the changeset is obsolete"""
-        return self.rev() in obsmod.getrevs(self._repo, 'obsolete')
-
-    def extinct(self):
-        """True if the changeset is extinct"""
-        return self.rev() in obsmod.getrevs(self._repo, 'extinct')
-
-    def unstable(self):
-        """True if the changeset is not obsolete but it's ancestor are"""
-        return self.rev() in obsmod.getrevs(self._repo, 'unstable')
-
-    def bumped(self):
-        """True if the changeset try to be a successor of a public changeset
-
-        Only non-public and non-obsolete changesets may be bumped.
-        """
-        return self.rev() in obsmod.getrevs(self._repo, 'bumped')
-
-    def divergent(self):
-        """Is a successors of a changeset with multiple possible successors set
-
-        Only non-public and non-obsolete changesets may be divergent.
-        """
-        return self.rev() in obsmod.getrevs(self._repo, 'divergent')
-
-    def troubled(self):
-        """True if the changeset is either unstable, bumped or divergent"""
-        return self.unstable() or self.bumped() or self.divergent()
-
-    def troubles(self):
-        """return the list of troubles affecting this changesets.
-
-        Troubles are returned as strings. possible values are:
-        - unstable,
-        - bumped,
-        - divergent.
-        """
-        troubles = []
-        if self.unstable():
-            troubles.append('unstable')
-        if self.bumped():
-            troubles.append('bumped')
-        if self.divergent():
-            troubles.append('divergent')
-        return troubles
-
-    def _fileinfo(self, path):
-        if '_manifest' in self.__dict__:
-            try:
-                return self._manifest[path], self._manifest.flags(path)
-            except KeyError:
-                raise error.ManifestLookupError(self._node, path,
-                                                _('not found in manifest'))
-        if '_manifestdelta' in self.__dict__ or path in self.files():
-            if path in self._manifestdelta:
-                return (self._manifestdelta[path],
-                        self._manifestdelta.flags(path))
-        node, flag = self._repo.manifest.find(self._changeset[0], path)
-        if not node:
-            raise error.ManifestLookupError(self._node, path,
-                                            _('not found in manifest'))
-
-        return node, flag
-
-    def filenode(self, path):
-        return self._fileinfo(path)[0]
-
-    def flags(self, path):
-        try:
-            return self._fileinfo(path)[1]
-        except error.LookupError:
-            return ''
-
     def filectx(self, path, fileid=None, filelog=None):
         """get a file context from this changeset"""
         if fileid is None:
@@ -353,83 +409,15 @@
             if match.bad(fn, _('no such file in rev %s') % self) and match(fn):
                 yield fn
 
-    def sub(self, path):
-        return subrepo.subrepo(self, path)
-
-    def match(self, pats=[], include=None, exclude=None, default='glob'):
-        r = self._repo
-        return matchmod.match(r.root, r.getcwd(), pats,
-                              include, exclude, default,
-                              auditor=r.auditor, ctx=self)
-
-    def diff(self, ctx2=None, match=None, **opts):
-        """Returns a diff generator for the given contexts and matcher"""
-        if ctx2 is None:
-            ctx2 = self.p1()
-        if ctx2 is not None and not isinstance(ctx2, changectx):
-            ctx2 = self._repo[ctx2]
-        diffopts = patch.diffopts(self._repo.ui, opts)
-        return patch.diff(self._repo, ctx2.node(), self.node(),
-                          match=match, opts=diffopts)
-
-    @propertycache
-    def _dirs(self):
-        return scmutil.dirs(self._manifest)
-
-    def dirs(self):
-        return self._dirs
-
-    def dirty(self):
-        return False
-
-class filectx(object):
-    """A filecontext object makes access to data related to a particular
-       filerevision convenient."""
-    def __init__(self, repo, path, changeid=None, fileid=None,
-                 filelog=None, changectx=None):
-        """changeid can be a changeset revision, node, or tag.
-           fileid can be a file revision or node."""
-        self._repo = repo
-        self._path = path
-
-        assert (changeid is not None
-                or fileid is not None
-                or changectx is not None), \
-                ("bad args: changeid=%r, fileid=%r, changectx=%r"
-                 % (changeid, fileid, changectx))
-
-        if filelog is not None:
-            self._filelog = filelog
-
-        if changeid is not None:
-            self._changeid = changeid
-        if changectx is not None:
-            self._changectx = changectx
-        if fileid is not None:
-            self._fileid = fileid
-
-    @propertycache
-    def _changectx(self):
-        try:
-            return changectx(self._repo, self._changeid)
-        except error.RepoLookupError:
-            # Linkrev may point to any revision in the repository.  When the
-            # repository is filtered this may lead to `filectx` trying to build
-            # `changectx` for filtered revision. In such case we fallback to
-            # creating `changectx` on the unfiltered version of the reposition.
-            # This fallback should not be an issue because `changectx` from
-            # `filectx` are not used in complex operations that care about
-            # filtering.
-            #
-            # This fallback is a cheap and dirty fix that prevent several
-            # crashes. It does not ensure the behavior is correct. However the
-            # behavior was not correct before filtering either and "incorrect
-            # behavior" is seen as better as "crash"
-            #
-            # Linkrevs have several serious troubles with filtering that are
-            # complicated to solve. Proper handling of the issue here should be
-            # considered when solving linkrev issue are on the table.
-            return changectx(self._repo.unfiltered(), self._changeid)
+class basefilectx(object):
+    """A filecontext object represents the common logic for its children:
+    filectx: read-only access to a filerevision that is already present
+             in the repo,
+    workingfilectx: a filecontext that represents files from the working
+                    directory,
+    memfilectx: a filecontext that represents files in-memory."""
+    def __new__(cls, repo, path, *args, **kwargs):
+        return super(basefilectx, cls).__new__(cls)
 
     @propertycache
     def _filelog(self):
@@ -468,10 +456,10 @@
             return False
 
     def __str__(self):
-        return "%s@%s" % (self.path(), short(self.node()))
+        return "%s@%s" % (self.path(), self._changectx)
 
     def __repr__(self):
-        return "<filectx %s>" % str(self)
+        return "<%s %s>" % (type(self).__name__, str(self))
 
     def __hash__(self):
         try:
@@ -481,7 +469,7 @@
 
     def __eq__(self, other):
         try:
-            return (self._path == other._path
+            return (type(self) == type(other) and self._path == other._path
                     and self._filenode == other._filenode)
         except AttributeError:
             return False
@@ -489,12 +477,6 @@
     def __ne__(self, other):
         return not (self == other)
 
-    def filectx(self, fileid):
-        '''opens an arbitrary revision of the file without
-        opening a new filelog'''
-        return filectx(self._repo, self._path, fileid=fileid,
-                       filelog=self._filelog)
-
     def filerev(self):
         return self._filerev
     def filenode(self):
@@ -510,7 +492,7 @@
     def node(self):
         return self._changectx.node()
     def hex(self):
-        return hex(self.node())
+        return self._changectx.hex()
     def user(self):
         return self._changectx.user()
     def date(self):
@@ -532,12 +514,8 @@
     def changectx(self):
         return self._changectx
 
-    def data(self):
-        return self._filelog.read(self._filenode)
     def path(self):
         return self._path
-    def size(self):
-        return self._filelog.size(self._filerev)
 
     def isbinary(self):
         try:
@@ -560,31 +538,6 @@
 
         return True
 
-    def renamed(self):
-        """check if file was actually renamed in this changeset revision
-
-        If rename logged in file revision, we report copy for changeset only
-        if file revisions linkrev points back to the changeset in question
-        or both changeset parents contain different file revisions.
-        """
-
-        renamed = self._filelog.renamed(self._filenode)
-        if not renamed:
-            return renamed
-
-        if self.rev() == self.linkrev():
-            return renamed
-
-        name = self.path()
-        fnode = self._filenode
-        for p in self._changectx.parents():
-            try:
-                if fnode == p.filenode(name):
-                    return None
-            except error.LookupError:
-                pass
-        return renamed
-
     def parents(self):
         p = self._path
         fl = self._filelog
@@ -606,12 +559,6 @@
             return p[1]
         return filectx(self._repo, self._path, fileid=-1, filelog=self._filelog)
 
-    def children(self):
-        # hard for renames
-        c = self._filelog.children(self._filenode)
-        return [filectx(self._repo, self._path, fileid=x,
-                        filelog=self._filelog) for x in c]
-
     def annotate(self, follow=False, linenumber=None, diffopts=None):
         '''returns a list of tuples of (ctx, line) for each line
         in the file, where ctx is the filectx of the node where
@@ -783,15 +730,100 @@
             self._copycache[sc2] = copies.pathcopies(c2)
         return self._copycache[sc2]
 
-class workingctx(changectx):
-    """A workingctx object makes access to data related to
-    the current working directory convenient.
-    date - any valid date string or (unixtime, offset), or None.
-    user - username string, or None.
-    extra - a dictionary of extra values, or None.
-    changes - a list of file lists as returned by localrepo.status()
-               or None to use the repository status.
-    """
+class filectx(basefilectx):
+    """A filecontext object makes access to data related to a particular
+       filerevision convenient."""
+    def __init__(self, repo, path, changeid=None, fileid=None,
+                 filelog=None, changectx=None):
+        """changeid can be a changeset revision, node, or tag.
+           fileid can be a file revision or node."""
+        self._repo = repo
+        self._path = path
+
+        assert (changeid is not None
+                or fileid is not None
+                or changectx is not None), \
+                ("bad args: changeid=%r, fileid=%r, changectx=%r"
+                 % (changeid, fileid, changectx))
+
+        if filelog is not None:
+            self._filelog = filelog
+
+        if changeid is not None:
+            self._changeid = changeid
+        if changectx is not None:
+            self._changectx = changectx
+        if fileid is not None:
+            self._fileid = fileid
+
+    @propertycache
+    def _changectx(self):
+        try:
+            return changectx(self._repo, self._changeid)
+        except error.RepoLookupError:
+            # Linkrev may point to any revision in the repository.  When the
+            # repository is filtered this may lead to `filectx` trying to build
+            # `changectx` for filtered revision. In such case we fallback to
+            # creating `changectx` on the unfiltered version of the reposition.
+            # This fallback should not be an issue because `changectx` from
+            # `filectx` are not used in complex operations that care about
+            # filtering.
+            #
+            # This fallback is a cheap and dirty fix that prevent several
+            # crashes. It does not ensure the behavior is correct. However the
+            # behavior was not correct before filtering either and "incorrect
+            # behavior" is seen as better as "crash"
+            #
+            # Linkrevs have several serious troubles with filtering that are
+            # complicated to solve. Proper handling of the issue here should be
+            # considered when solving linkrev issue are on the table.
+            return changectx(self._repo.unfiltered(), self._changeid)
+
+    def filectx(self, fileid):
+        '''opens an arbitrary revision of the file without
+        opening a new filelog'''
+        return filectx(self._repo, self._path, fileid=fileid,
+                       filelog=self._filelog)
+
+    def data(self):
+        return self._filelog.read(self._filenode)
+    def size(self):
+        return self._filelog.size(self._filerev)
+
+    def renamed(self):
+        """check if file was actually renamed in this changeset revision
+
+        If rename logged in file revision, we report copy for changeset only
+        if file revisions linkrev points back to the changeset in question
+        or both changeset parents contain different file revisions.
+        """
+
+        renamed = self._filelog.renamed(self._filenode)
+        if not renamed:
+            return renamed
+
+        if self.rev() == self.linkrev():
+            return renamed
+
+        name = self.path()
+        fnode = self._filenode
+        for p in self._changectx.parents():
+            try:
+                if fnode == p.filenode(name):
+                    return None
+            except error.LookupError:
+                pass
+        return renamed
+
+    def children(self):
+        # hard for renames
+        c = self._filelog.children(self._filenode)
+        return [filectx(self._repo, self._path, fileid=x,
+                        filelog=self._filelog) for x in c]
+
+class committablectx(basectx):
+    """A committablectx object provides common functionality for a context that
+    wants the ability to commit, e.g. workingctx or memctx."""
     def __init__(self, repo, text="", user=None, date=None, extra=None,
                  changes=None):
         self._repo = repo
@@ -827,9 +859,6 @@
     def __str__(self):
         return str(self._parents[0]) + "+"
 
-    def __repr__(self):
-        return "<workingctx %s>" % str(self)
-
     def __nonzero__(self):
         return True
 
@@ -904,12 +933,6 @@
 
         return man
 
-    def __iter__(self):
-        d = self._repo.dirstate
-        for f in d:
-            if d[f] != 'r':
-                yield f
-
     @propertycache
     def _status(self):
         return self._repo.status()[:4]
@@ -922,13 +945,6 @@
     def _date(self):
         return util.makedate()
 
-    @propertycache
-    def _parents(self):
-        p = self._repo.dirstate.parents()
-        if p[1] == nullid:
-            p = p[:-1]
-        return [changectx(self._repo, x) for x in p]
-
     def status(self, ignored=False, clean=False, unknown=False):
         """Explicit status query
         Unless this method is used to query the working copy status, the
@@ -945,8 +961,6 @@
         self._status = stat[:4]
         return stat
 
-    def manifest(self):
-        return self._manifest
     def user(self):
         return self._user or self._repo.ui.username()
     def date(self):
@@ -1016,11 +1030,6 @@
         except OSError:
             return ''
 
-    def filectx(self, path, filelog=None):
-        """get a file context from the working directory"""
-        return workingfilectx(self._repo, path, workingctx=self,
-                              filelog=filelog)
-
     def ancestor(self, c2):
         """return the ancestor context of self and c2"""
         return self._parents[0].ancestor(c2) # punt on two parents for now
@@ -1029,6 +1038,61 @@
         return sorted(self._repo.dirstate.walk(match, sorted(self.substate),
                                                True, False))
 
+    def ancestors(self):
+        for a in self._repo.changelog.ancestors(
+            [p.rev() for p in self._parents]):
+            yield changectx(self._repo, a)
+
+    def markcommitted(self, node):
+        """Perform post-commit cleanup necessary after committing this ctx
+
+        Specifically, this updates backing stores this working context
+        wraps to reflect the fact that the changes reflected by this
+        workingctx have been committed.  For example, it marks
+        modified and added files as normal in the dirstate.
+
+        """
+
+        for f in self.modified() + self.added():
+            self._repo.dirstate.normal(f)
+        for f in self.removed():
+            self._repo.dirstate.drop(f)
+        self._repo.dirstate.setparents(node)
+
+    def dirs(self):
+        return self._repo.dirstate.dirs()
+
+class workingctx(committablectx):
+    """A workingctx object makes access to data related to
+    the current working directory convenient.
+    date - any valid date string or (unixtime, offset), or None.
+    user - username string, or None.
+    extra - a dictionary of extra values, or None.
+    changes - a list of file lists as returned by localrepo.status()
+               or None to use the repository status.
+    """
+    def __init__(self, repo, text="", user=None, date=None, extra=None,
+                 changes=None):
+        super(workingctx, self).__init__(repo, text, user, date, extra, changes)
+
+    def __iter__(self):
+        d = self._repo.dirstate
+        for f in d:
+            if d[f] != 'r':
+                yield f
+
+    @propertycache
+    def _parents(self):
+        p = self._repo.dirstate.parents()
+        if p[1] == nullid:
+            p = p[:-1]
+        return [changectx(self._repo, x) for x in p]
+
+    def filectx(self, path, filelog=None):
+        """get a file context from the working directory"""
+        return workingfilectx(self._repo, path, workingctx=self,
+                              filelog=filelog)
+
     def dirty(self, missing=False, merge=True, branch=True):
         "check whether a working directory is modified"
         # check subrepos first
@@ -1093,11 +1157,6 @@
         finally:
             wlock.release()
 
-    def ancestors(self):
-        for a in self._repo.changelog.ancestors(
-            [p.rev() for p in self._parents]):
-            yield changectx(self._repo, a)
-
     def undelete(self, list):
         pctxs = self.parents()
         wlock = self._repo.wlock()
@@ -1129,31 +1188,10 @@
             finally:
                 wlock.release()
 
-    def markcommitted(self, node):
-        """Perform post-commit cleanup necessary after committing this ctx
-
-        Specifically, this updates backing stores this working context
-        wraps to reflect the fact that the changes reflected by this
-        workingctx have been committed.  For example, it marks
-        modified and added files as normal in the dirstate.
-
-        """
-
-        for f in self.modified() + self.added():
-            self._repo.dirstate.normal(f)
-        for f in self.removed():
-            self._repo.dirstate.drop(f)
-        self._repo.dirstate.setparents(node)
-
-    def dirs(self):
-        return self._repo.dirstate.dirs()
-
-class workingfilectx(filectx):
-    """A workingfilectx object makes access to data related to a particular
-       file in the working directory convenient."""
-    def __init__(self, repo, path, filelog=None, workingctx=None):
-        """changeid can be a changeset revision, node, or tag.
-           fileid can be a file revision or node."""
+class committablefilectx(basefilectx):
+    """A committablefilectx provides common functionality for a file context
+    that wants the ability to commit, e.g. workingfilectx or memfilectx."""
+    def __init__(self, repo, path, filelog=None, ctx=None):
         self._repo = repo
         self._path = path
         self._changeid = None
@@ -1161,30 +1199,12 @@
 
         if filelog is not None:
             self._filelog = filelog
-        if workingctx:
-            self._changectx = workingctx
-
-    @propertycache
-    def _changectx(self):
-        return workingctx(self._repo)
+        if ctx:
+            self._changectx = ctx
 
     def __nonzero__(self):
         return True
 
-    def __str__(self):
-        return "%s@%s" % (self.path(), self._changectx)
-
-    def __repr__(self):
-        return "<workingfilectx %s>" % str(self)
-
-    def data(self):
-        return self._repo.wread(self._path)
-    def renamed(self):
-        rp = self._repo.dirstate.copied(self._path)
-        if not rp:
-            return None
-        return rp, self._changectx._parents[0]._manifest.get(rp, nullid)
-
     def parents(self):
         '''return parent filectxs, following copies if necessary'''
         def filenode(ctx, path):
@@ -1209,6 +1229,24 @@
     def children(self):
         return []
 
+class workingfilectx(committablefilectx):
+    """A workingfilectx object makes access to data related to a particular
+       file in the working directory convenient."""
+    def __init__(self, repo, path, filelog=None, workingctx=None):
+        super(workingfilectx, self).__init__(repo, path, filelog, workingctx)
+
+    @propertycache
+    def _changectx(self):
+        return workingctx(self._repo)
+
+    def data(self):
+        return self._repo.wread(self._path)
+    def renamed(self):
+        rp = self._repo.dirstate.copied(self._path)
+        if not rp:
+            return None
+        return rp, self._changectx._parents[0]._manifest.get(rp, nullid)
+
     def size(self):
         return os.lstat(self._repo.wjoin(self._path)).st_size
     def date(self):
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/dirstate.py
--- a/mercurial/dirstate.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/dirstate.py	Tue Oct 01 10:44:59 2013 -0700
@@ -801,12 +801,9 @@
         mexact = match.exact
         dirignore = self._dirignore
         checkexec = self._checkexec
-        checklink = self._checklink
         copymap = self._copymap
         lastnormaltime = self._lastnormaltime
 
-        lnkkind = stat.S_IFLNK
-
         # We need to do full walks when either
         # - we're listing all clean files, or
         # - match.traversedir does something, because match.traversedir should
@@ -827,20 +824,14 @@
             if not st and state in "nma":
                 dadd(fn)
             elif state == 'n':
-                # The "mode & lnkkind != lnkkind or self._checklink"
-                # lines are an expansion of "islink => checklink"
-                # where islink means "is this a link?" and checklink
-                # means "can we check links?".
                 mtime = int(st.st_mtime)
                 if (size >= 0 and
                     ((size != st.st_size and size != st.st_size & _rangemask)
                      or ((mode ^ st.st_mode) & 0100 and checkexec))
-                    and (mode & lnkkind != lnkkind or checklink)
                     or size == -2 # other parent
                     or fn in copymap):
                     madd(fn)
-                elif ((time != mtime and time != mtime & _rangemask)
-                      and (mode & lnkkind != lnkkind or checklink)):
+                elif time != mtime and time != mtime & _rangemask:
                     ladd(fn)
                 elif mtime == lastnormaltime:
                     # fn may have been changed in the same timeslot without
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/discovery.py
--- a/mercurial/discovery.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/discovery.py	Tue Oct 01 10:44:59 2013 -0700
@@ -269,13 +269,12 @@
     allfuturecommon = set(c.node() for c in repo.set('%ld', outgoing.common))
     allfuturecommon.update(allmissing)
     for branch, heads in sorted(headssum.iteritems()):
-        if heads[0] is None:
-            # Maybe we should abort if we push more that one head
-            # for new branches ?
-            continue
         candidate_newhs = set(heads[1])
         # add unsynced data
-        oldhs = set(heads[0])
+        if heads[0] is None:
+            oldhs = set()
+        else:
+            oldhs = set(heads[0])
         oldhs.update(heads[2])
         candidate_newhs.update(heads[2])
         dhs = None
@@ -310,7 +309,16 @@
             newhs = candidate_newhs
         if [h for h in heads[2] if h not in discardedheads]:
             unsynced = True
-        if len(newhs) > len(oldhs):
+        if heads[0] is None:
+            if 1 < len(newhs):
+                dhs = list(newhs)
+                if error is None:
+                    error = (_("push creates multiple headed new branch '%s'")
+                             % (branch))
+                    hint = _("merge or"
+                             " see \"hg help push\" for detail about"
+                             " pushing new heads")
+        elif len(newhs) > len(oldhs):
             # strip updates to existing remote heads from the new heads list
             dhs = sorted(newhs - bookmarkedheads - oldhs)
         if dhs:
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/dispatch.py
--- a/mercurial/dispatch.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/dispatch.py	Tue Oct 01 10:44:59 2013 -0700
@@ -88,11 +88,47 @@
 
     try:
         try:
+            debugger = 'pdb'
+            debugtrace = {
+                'pdb' : pdb.set_trace
+            }
+            debugmortem = {
+                'pdb' : pdb.post_mortem
+            }
+
+            # read --config before doing anything else
+            # (e.g. to change trust settings for reading .hg/hgrc)
+            cfgs = _parseconfig(req.ui, _earlygetopt(['--config'], req.args))
+
+            if req.repo:
+                # copy configs that were passed on the cmdline (--config) to
+                # the repo ui
+                for cfg in cfgs:
+                    req.repo.ui.setconfig(*cfg)
+
+            debugger = ui.config("ui", "debugger")
+            if not debugger:
+                debugger = 'pdb'
+
+            try:
+                debugmod = __import__(debugger)
+            except ImportError:
+                debugmod = pdb
+
+            debugtrace[debugger] = debugmod.set_trace
+            debugmortem[debugger] = debugmod.post_mortem
+
             # enter the debugger before command execution
             if '--debugger' in req.args:
                 ui.warn(_("entering debugger - "
                         "type c to continue starting hg or h for help\n"))
-                pdb.set_trace()
+
+                if (debugger != 'pdb' and
+                    debugtrace[debugger] == debugtrace['pdb']):
+                    ui.warn(_("%s debugger specified "
+                              "but its module was not found\n") % debugger)
+
+                debugtrace[debugger]()
             try:
                 return _dispatch(req)
             finally:
@@ -101,7 +137,7 @@
             # enter the debugger when we hit an exception
             if '--debugger' in req.args:
                 traceback.print_exc()
-                pdb.post_mortem(sys.exc_info()[2])
+                debugmortem[debugger](sys.exc_info()[2])
             ui.traceback()
             raise
 
@@ -619,10 +655,6 @@
     args = req.args
     ui = req.ui
 
-    # read --config before doing anything else
-    # (e.g. to change trust settings for reading .hg/hgrc)
-    cfgs = _parseconfig(ui, _earlygetopt(['--config'], args))
-
     # check for cwd
     cwd = _earlygetopt(['--cwd'], args)
     if cwd:
@@ -699,10 +731,6 @@
     if req.repo:
         uis.add(req.repo.ui)
 
-        # copy configs that were passed on the cmdline (--config) to the repo ui
-        for cfg in cfgs:
-            req.repo.ui.setconfig(*cfg)
-
     if options['verbose'] or options['debug'] or options['quiet']:
         for opt in ('verbose', 'debug', 'quiet'):
             val = str(bool(options[opt]))
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/extensions.py
--- a/mercurial/extensions.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/extensions.py	Tue Oct 01 10:44:59 2013 -0700
@@ -13,10 +13,18 @@
 _order = []
 _ignore = ['hbisect', 'bookmarks', 'parentrevspec', 'interhg']
 
-def extensions():
+def extensions(ui=None):
+    if ui:
+        def enabled(name):
+            for format in ['%s', 'hgext.%s']:
+                conf = ui.config('extensions', format % name)
+                if conf is not None and not conf.startswith('!'):
+                    return True
+    else:
+        enabled = lambda name: True
     for name in _order:
         module = _extensions[name]
-        if module:
+        if module and enabled(name):
             yield name, module
 
 def find(name):
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/hg.py
--- a/mercurial/hg.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/hg.py	Tue Oct 01 10:44:59 2013 -0700
@@ -101,7 +101,7 @@
     """return a repository object for the specified path"""
     obj = _peerlookup(path).instance(ui, path, create)
     ui = getattr(obj, "ui", ui)
-    for name, module in extensions.extensions():
+    for name, module in extensions.extensions(ui):
         hook = getattr(module, 'reposetup', None)
         if hook:
             hook(ui, obj)
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/hgweb/webcommands.py
--- a/mercurial/hgweb/webcommands.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/hgweb/webcommands.py	Tue Oct 01 10:44:59 2013 -0700
@@ -9,13 +9,15 @@
 import webutil
 from mercurial import error, encoding, archival, templater, templatefilters
 from mercurial.node import short, hex, nullid
-from mercurial.util import binary
+from mercurial import util
 from common import paritygen, staticfile, get_contact, ErrorResponse
 from common import HTTP_OK, HTTP_FORBIDDEN, HTTP_NOT_FOUND
 from mercurial import graphmod, patch
 from mercurial import help as helpmod
 from mercurial import scmutil
 from mercurial.i18n import _
+from mercurial.error import ParseError, RepoLookupError, Abort
+from mercurial import revset
 
 # __all__ is populated with the allowed commands. Be sure to add to it if
 # you're adding a new command, or the new command won't work.
@@ -57,7 +59,7 @@
     if guessmime:
         mt = mimetypes.guess_type(path)[0]
         if mt is None:
-            mt = binary(text) and 'application/binary' or 'text/plain'
+            mt = util.binary(text) and 'application/binary' or 'text/plain'
     if mt.startswith('text/'):
         mt += '; charset="%s"' % encoding.encoding
 
@@ -69,7 +71,7 @@
     text = fctx.data()
     parity = paritygen(web.stripecount)
 
-    if binary(text):
+    if util.binary(text):
         mt = mimetypes.guess_type(f)[0] or 'application/octet-stream'
         text = '(binary:%s)' % mt
 
@@ -109,9 +111,14 @@
             raise inst
 
 def _search(web, req, tmpl):
+    MODE_REVISION = 'rev'
+    MODE_KEYWORD = 'keyword'
+    MODE_REVSET = 'revset'
 
-    def changelist(**map):
-        count = 0
+    def revsearch(ctx):
+        yield ctx
+
+    def keywordsearch(query):
         lower = encoding.lower
         qw = lower(query).split()
 
@@ -137,6 +144,62 @@
             if miss:
                 continue
 
+            yield ctx
+
+    def revsetsearch(revs):
+        for r in revs:
+            yield web.repo[r]
+
+    searchfuncs = {
+        MODE_REVISION: (revsearch, _('exact revision search')),
+        MODE_KEYWORD: (keywordsearch, _('literal keyword search')),
+        MODE_REVSET: (revsetsearch, _('revset expression search')),
+    }
+
+    def getsearchmode(query):
+        try:
+            ctx = web.repo[query]
+        except (error.RepoError, error.LookupError):
+            # query is not an exact revision pointer, need to
+            # decide if it's a revset expession or keywords
+            pass
+        else:
+            return MODE_REVISION, ctx
+
+        revdef = 'reverse(%s)' % query
+        try:
+            tree, pos = revset.parse(revdef)
+        except ParseError:
+            # can't parse to a revset tree
+            return MODE_KEYWORD, query
+
+        if revset.depth(tree) <= 2:
+            # no revset syntax used
+            return MODE_KEYWORD, query
+
+        if util.any((token, (value or '')[:3]) == ('string', 're:')
+                    for token, value, pos in revset.tokenize(revdef)):
+            return MODE_KEYWORD, query
+
+        funcsused = revset.funcsused(tree)
+        if not funcsused.issubset(revset.safesymbols):
+            return MODE_KEYWORD, query
+
+        mfunc = revset.match(web.repo.ui, revdef)
+        try:
+            revs = mfunc(web.repo, list(web.repo))
+            return MODE_REVSET, revs
+            # ParseError: wrongly placed tokens, wrongs arguments, etc
+            # RepoLookupError: no such revision, e.g. in 'revision:'
+            # Abort: bookmark/tag not exists
+            # LookupError: ambiguous identifier, e.g. in '(bc)' on a large repo
+        except (ParseError, RepoLookupError, Abort, LookupError):
+            return MODE_KEYWORD, query
+
+    def changelist(**map):
+        count = 0
+
+        for ctx in searchfunc[0](funcarg):
             count += 1
             n = ctx.node()
             showtags = webutil.showtag(web.repo, tmpl, 'changelogtag', n)
@@ -176,35 +239,45 @@
     morevars['revcount'] = revcount * 2
     morevars['rev'] = query
 
+    mode, funcarg = getsearchmode(query)
+
+    if 'forcekw' in req.form:
+        showforcekw = ''
+        showunforcekw = searchfuncs[mode][1]
+        mode = MODE_KEYWORD
+        funcarg = query
+    else:
+        if mode != MODE_KEYWORD:
+            showforcekw = searchfuncs[MODE_KEYWORD][1]
+        else:
+            showforcekw = ''
+        showunforcekw = ''
+
+    searchfunc = searchfuncs[mode]
+
     tip = web.repo['tip']
     parity = paritygen(web.stripecount)
 
     return tmpl('search', query=query, node=tip.hex(),
                 entries=changelist, archives=web.archivelist("tip"),
-                morevars=morevars, lessvars=lessvars)
+                morevars=morevars, lessvars=lessvars,
+                modedesc=searchfunc[1],
+                showforcekw=showforcekw, showunforcekw=showunforcekw)
 
 def changelog(web, req, tmpl, shortlog=False):
 
     query = ''
     if 'node' in req.form:
         ctx = webutil.changectx(web.repo, req)
+    elif 'rev' in req.form:
+        return _search(web, req, tmpl)
     else:
-        if 'rev' in req.form:
-            query = req.form['rev'][0]
-            hi = query
-        else:
-            hi = 'tip'
-        try:
-            ctx = web.repo[hi]
-        except (error.RepoError, error.LookupError):
-            return _search(web, req, tmpl) # XXX redirect to 404 page?
+        ctx = web.repo['tip']
 
-    def changelist(latestonly, **map):
+    def changelist():
         revs = []
         if pos != -1:
             revs = web.repo.changelog.revs(pos, 0)
-        if latestonly:
-            revs = (revs.next(),)
         curcount = 0
         for i in revs:
             ctx = web.repo[i]
@@ -213,7 +286,7 @@
             files = webutil.listfilediffs(tmpl, ctx.files(), n, web.maxfiles)
 
             curcount += 1
-            if curcount > revcount:
+            if curcount > revcount + 1:
                 break
             yield {"parity": parity.next(),
                    "author": ctx.user(),
@@ -249,10 +322,18 @@
 
     changenav = webutil.revnav(web.repo).gen(pos, revcount, count)
 
+    entries = list(changelist())
+    latestentry = entries[:1]
+    if len(entries) > revcount:
+        nextentry = entries[-1:]
+        entries = entries[:-1]
+    else:
+        nextentry = []
+
     return tmpl(shortlog and 'shortlog' or 'changelog', changenav=changenav,
                 node=ctx.hex(), rev=pos, changesets=count,
-                entries=lambda **x: changelist(latestonly=False, **x),
-                latestentry=lambda **x: changelist(latestonly=True, **x),
+                entries=entries,
+                latestentry=latestentry, nextentry=nextentry,
                 archives=web.archivelist("tip"), revcount=revcount,
                 morevars=morevars, lessvars=lessvars, query=query)
 
@@ -617,7 +698,7 @@
         context = parsecontext(web.config('web', 'comparisoncontext', '5'))
 
     def filelines(f):
-        if binary(f.data()):
+        if util.binary(f.data()):
             mt = mimetypes.guess_type(f.path())[0]
             if not mt:
                 mt = 'application/octet-stream'
@@ -675,7 +756,7 @@
 
     def annotate(**map):
         last = None
-        if binary(fctx.data()):
+        if util.binary(fctx.data()):
             mt = (mimetypes.guess_type(fctx.path())[0]
                   or 'application/octet-stream')
             lines = enumerate([((fctx.filectx(fctx.filerev()), 1),
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/httpclient/__init__.py
--- a/mercurial/httpclient/__init__.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/httpclient/__init__.py	Tue Oct 01 10:44:59 2013 -0700
@@ -292,7 +292,7 @@
     def __init__(self, host, port=None, use_ssl=None, ssl_validator=None,
                  timeout=TIMEOUT_DEFAULT,
                  continue_timeout=TIMEOUT_ASSUME_CONTINUE,
-                 proxy_hostport=None, **ssl_opts):
+                 proxy_hostport=None, ssl_wrap_socket=None, **ssl_opts):
         """Create a new HTTPConnection.
 
         Args:
@@ -307,12 +307,23 @@
                    "100 Continue" response. Default is TIMEOUT_ASSUME_CONTINUE.
           proxy_hostport: Optional. Tuple of (host, port) to use as an http
                        proxy for the connection. Default is to not use a proxy.
+          ssl_wrap_socket: Optional function to use for wrapping
+            sockets. If unspecified, the one from the ssl module will
+            be used if available, or something that's compatible with
+            it if on a Python older than 2.6.
+
+        Any extra keyword arguments to this function will be provided
+        to the ssl_wrap_socket method. If no ssl
         """
         if port is None and host.count(':') == 1 or ']:' in host:
             host, port = host.rsplit(':', 1)
             port = int(port)
             if '[' in host:
                 host = host[1:-1]
+        if ssl_wrap_socket is not None:
+            self._ssl_wrap_socket = ssl_wrap_socket
+        else:
+            self._ssl_wrap_socket = socketutil.wrap_socket
         if use_ssl is None and port is None:
             use_ssl = False
             port = 80
@@ -387,7 +398,7 @@
             sock.setblocking(1)
             logger.debug('wrapping socket for ssl with options %r',
                          self.ssl_opts)
-            sock = socketutil.wrap_socket(sock, **self.ssl_opts)
+            sock = self._ssl_wrap_socket(sock, **self.ssl_opts)
             if self._ssl_validator:
                 self._ssl_validator(sock)
         sock.setblocking(0)
@@ -495,6 +506,10 @@
             else:
                 raise BadRequestData('body has no __len__() nor read()')
 
+        # If we're reusing the underlying socket, there are some
+        # conditions where we'll want to retry, so make a note of the
+        # state of self.sock
+        fresh_socket = self.sock is None
         self._connect()
         outgoing_headers = self._buildheaders(
             method, path, hdrs, self.http_version)
@@ -640,6 +655,26 @@
         # the whole request
         if response is None:
             response = self.response_class(self.sock, self.timeout, method)
+            if not fresh_socket:
+                if not response._select():
+                    # This means the response failed to get any response
+                    # data at all, and in all probability the socket was
+                    # closed before the server even saw our request. Try
+                    # the request again on a fresh socket.
+                    logging.debug('response._select() failed during request().'
+                                  ' Assuming request needs to be retried.')
+                    self.sock = None
+                    # Call this method explicitly to re-try the
+                    # request. We don't use self.request() because
+                    # some tools (notably Mercurial) expect to be able
+                    # to subclass and redefine request(), and they
+                    # don't have the same argspec as we do.
+                    #
+                    # TODO restructure sending of requests to avoid
+                    # this recursion
+                    return HTTPConnection.request(
+                        self, method, path, body=body, headers=headers,
+                        expect_continue=expect_continue)
         data_left = bool(outgoing_headers or body)
         if data_left:
             logger.info('stopped sending request early, '
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/httpconnection.py
--- a/mercurial/httpconnection.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/httpconnection.py	Tue Oct 01 10:44:59 2013 -0700
@@ -275,14 +275,13 @@
             if '[' in host:
                 host = host[1:-1]
 
-        if keyfile:
-            kwargs['keyfile'] = keyfile
-        if certfile:
-            kwargs['certfile'] = certfile
+        kwargs['keyfile'] = keyfile
+        kwargs['certfile'] = certfile
 
         kwargs.update(sslutil.sslkwargs(self.ui, host))
 
         con = HTTPConnection(host, port, use_ssl=True,
+                             ssl_wrap_socket=sslutil.ssl_wrap_socket,
                              ssl_validator=sslutil.validator(self.ui, host),
                              **kwargs)
         return con
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/localrepo.py
--- a/mercurial/localrepo.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/localrepo.py	Tue Oct 01 10:44:59 2013 -0700
@@ -39,6 +39,8 @@
     """propertycache that apply to unfiltered repo only"""
 
     def __get__(self, repo, type=None):
+        if hasunfilteredcache(repo, self.name):
+            return getattr(repo.unfiltered(), self.name)
         return super(unfilteredpropertycache, self).__get__(repo.unfiltered())
 
 class filteredpropertycache(propertycache):
@@ -144,12 +146,14 @@
 class localrepository(object):
 
     supportedformats = set(('revlogv1', 'generaldelta'))
-    supported = supportedformats | set(('store', 'fncache', 'shared',
-                                        'dotencode'))
+    _basesupported = supportedformats | set(('store', 'fncache', 'shared',
+                                             'dotencode'))
     openerreqs = set(('revlogv1', 'generaldelta'))
     requirements = ['revlogv1']
     filtername = None
 
+    featuresetupfuncs = set()
+
     def _baserequirements(self, create):
         return self.requirements[:]
 
@@ -174,6 +178,13 @@
         except IOError:
             pass
 
+        if self.featuresetupfuncs:
+            self.supported = set(self._basesupported) # use private copy
+            for setupfunc in self.featuresetupfuncs:
+                setupfunc(self.ui, self.supported)
+        else:
+            self.supported = self._basesupported
+
         if not self.vfs.isdir():
             if create:
                 if not self.wvfs.exists():
@@ -1457,14 +1468,8 @@
                     del mf[fn]
             return mf
 
-        if isinstance(node1, context.changectx):
-            ctx1 = node1
-        else:
-            ctx1 = self[node1]
-        if isinstance(node2, context.changectx):
-            ctx2 = node2
-        else:
-            ctx2 = self[node2]
+        ctx1 = self[node1]
+        ctx2 = self[node2]
 
         working = ctx2.rev() is None
         parentworking = working and ctx1 == self['.']
@@ -1561,7 +1566,7 @@
             for f in modified:
                 if ctx2.flags(f) == 'l':
                     d = ctx2[f].data()
-                    if len(d) >= 1024 or '\n' in d or util.binary(d):
+                    if d == '' or len(d) >= 1024 or '\n' in d or util.binary(d):
                         self.ui.debug('ignoring suspect symlink placeholder'
                                       ' "%s"\n' % f)
                         continue
@@ -1653,6 +1658,14 @@
         return r
 
     def pull(self, remote, heads=None, force=False):
+        if remote.local():
+            missing = set(remote.requirements) - self.supported
+            if missing:
+                msg = _("required features are not"
+                        " supported in the destination:"
+                        " %s") % (', '.join(sorted(missing)))
+                raise util.Abort(msg)
+
         # don't open transaction for nothing or you break future useful
         # rollback call
         tr = None
@@ -1753,6 +1766,14 @@
             we have outgoing changesets but refused to push
           - other values as described by addchangegroup()
         '''
+        if remote.local():
+            missing = set(self.requirements) - remote.local().supported
+            if missing:
+                msg = _("required features are not"
+                        " supported in the destination:"
+                        " %s") % (', '.join(sorted(missing)))
+                raise util.Abort(msg)
+
         # there are two ways to push to remote repo:
         #
         # addchangegroup assumes local user can lock remote
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/mail.py
--- a/mercurial/mail.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/mail.py	Tue Oct 01 10:44:59 2013 -0700
@@ -8,7 +8,11 @@
 from i18n import _
 import util, encoding, sslutil
 import os, smtplib, socket, quopri, time, sys
-import email.Header, email.MIMEText, email.Utils
+import email
+# On python2.4 you have to import these by name or they fail to
+# load. This was not a problem on Python 2.7.
+import email.Header
+import email.MIMEText
 
 _oldheaderinit = email.Header.Header.__init__
 def _unifiedheaderinit(self, *args, **kw):
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/merge.py
--- a/mercurial/merge.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/merge.py	Tue Oct 01 10:44:59 2013 -0700
@@ -656,19 +656,21 @@
     -c  -C  dirty  rev  |  linear   same  cross
      n   n    n     n   |    ok     (1)     x
      n   n    n     y   |    ok     ok     ok
-     n   n    y     *   |   merge   (2)    (2)
+     n   n    y     n   |   merge   (2)    (2)
+     n   n    y     y   |   merge   (3)    (3)
      n   y    *     *   |    ---  discard  ---
-     y   n    y     *   |    ---    (3)    ---
+     y   n    y     *   |    ---    (4)    ---
      y   n    n     *   |    ---    ok     ---
-     y   y    *     *   |    ---    (4)    ---
+     y   y    *     *   |    ---    (5)    ---
 
     x = can't happen
     * = don't-care
-    1 = abort: crosses branches (use 'hg merge' or 'hg update -c')
-    2 = abort: crosses branches (use 'hg merge' to merge or
-                 use 'hg update -C' to discard changes)
-    3 = abort: uncommitted local changes
-    4 = incompatible options (checked in commands.py)
+    1 = abort: not a linear update (merge or update --check to force update)
+    2 = abort: uncommitted changes (commit and merge, or update --clean to
+                 discard changes)
+    3 = abort: uncommitted changes (commit or update --clean to discard changes)
+    4 = abort: uncommitted changes (checked in commands.py)
+    5 = incompatible options (checked in commands.py)
 
     Return the same tuple as applyupdates().
     """
@@ -709,11 +711,11 @@
                                      hint=_("use 'hg update' "
                                             "or check 'hg heads'"))
             if not force and (wc.files() or wc.deleted()):
-                raise util.Abort(_("outstanding uncommitted changes"),
+                raise util.Abort(_("uncommitted changes"),
                                  hint=_("use 'hg status' to list changes"))
             for s in sorted(wc.substate):
                 if wc.sub(s).dirty():
-                    raise util.Abort(_("outstanding uncommitted changes in "
+                    raise util.Abort(_("uncommitted changes in "
                                        "subrepository '%s'") % s)
 
         elif not overwrite:
@@ -727,13 +729,18 @@
                     if repo[node].node() in foreground:
                         pa = p1  # allow updating to successors
                     elif dirty:
-                        msg = _("crosses branches (merge branches or use"
-                                " --clean to discard changes)")
-                        raise util.Abort(msg)
+                        msg = _("uncommitted changes")
+                        if onode is None:
+                            hint = _("commit and merge, or update --clean to"
+                                     " discard changes")
+                        else:
+                            hint = _("commit or update --clean to discard"
+                                     " changes")
+                        raise util.Abort(msg, hint=hint)
                     else:  # node is none
-                        msg = _("crosses branches (merge branches or update"
-                                " --check to force update)")
-                        raise util.Abort(msg)
+                        msg = _("not a linear update")
+                        hint = _("merge or update --check to force update")
+                        raise util.Abort(msg, hint=hint)
                 else:
                     # Allow jumping branches if clean and specific rev given
                     pa = p1
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/obsolete.py
--- a/mercurial/obsolete.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/obsolete.py	Tue Oct 01 10:44:59 2013 -0700
@@ -371,7 +371,7 @@
         lock.release()
 
 def syncpush(repo, remote):
-    """utility function to push bookmark to a remote
+    """utility function to push obsolete markers to a remote
 
     Exist mostly to allow overridding for experimentation purpose"""
     if (_enabled and repo.obsstore and
@@ -387,7 +387,7 @@
             repo.ui.warn(msg)
 
 def syncpull(repo, remote, gettransaction):
-    """utility function to pull bookmark to a remote
+    """utility function to pull obsolete markers from a remote
 
     The `gettransaction` is function that return the pull transaction, creating
     one if necessary. We return the transaction to inform the calling code that
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/parsers.c
--- a/mercurial/parsers.c	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/parsers.c	Tue Oct 01 10:44:59 2013 -0700
@@ -14,16 +14,32 @@
 
 #include "util.h"
 
+static int8_t hextable[256] = {
+	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+	 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, -1, -1, -1, -1, -1, -1, /* 0-9 */
+	-1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* A-F */
+	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+	-1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* a-f */
+	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+};
+
 static inline int hexdigit(const char *p, Py_ssize_t off)
 {
-	char c = p[off];
+	int8_t val = hextable[(unsigned char)p[off]];
 
-	if (c >= '0' && c <= '9')
-		return c - '0';
-	if (c >= 'a' && c <= 'f')
-		return c - 'a' + 10;
-	if (c >= 'A' && c <= 'F')
-		return c - 'A' + 10;
+	if (val >= 0) {
+		return val;
+	}
 
 	PyErr_SetString(PyExc_ValueError, "input contains non-hex character");
 	return 0;
@@ -61,7 +77,7 @@
 static PyObject *parse_manifest(PyObject *self, PyObject *args)
 {
 	PyObject *mfdict, *fdict;
-	char *str, *cur, *start, *zero;
+	char *str, *start, *end;
 	int len;
 
 	if (!PyArg_ParseTuple(args, "O!O!s#:parse_manifest",
@@ -70,30 +86,34 @@
 			      &str, &len))
 		goto quit;
 
-	for (start = cur = str, zero = NULL; cur < str + len; cur++) {
+	start = str;
+	end = str + len;
+	while (start < end) {
 		PyObject *file = NULL, *node = NULL;
 		PyObject *flags = NULL;
+		char *zero = NULL, *newline = NULL;
 		ptrdiff_t nlen;
 
-		if (!*cur) {
-			zero = cur;
-			continue;
-		}
-		else if (*cur != '\n')
-			continue;
-
+		zero = memchr(start, '\0', end - start);
 		if (!zero) {
 			PyErr_SetString(PyExc_ValueError,
 					"manifest entry has no separator");
 			goto quit;
 		}
 
+		newline = memchr(zero + 1, '\n', end - (zero + 1));
+		if (!newline) {
+			PyErr_SetString(PyExc_ValueError,
+					"manifest contains trailing garbage");
+			goto quit;
+		}
+
 		file = PyBytes_FromStringAndSize(start, zero - start);
 
 		if (!file)
 			goto bail;
 
-		nlen = cur - zero - 1;
+		nlen = newline - zero - 1;
 
 		node = unhexlify(zero + 1, nlen > 40 ? 40 : (int)nlen);
 		if (!node)
@@ -112,8 +132,7 @@
 		if (PyDict_SetItem(mfdict, file, node) == -1)
 			goto bail;
 
-		start = cur + 1;
-		zero = NULL;
+		start = newline + 1;
 
 		Py_XDECREF(flags);
 		Py_XDECREF(node);
@@ -126,12 +145,6 @@
 		goto quit;
 	}
 
-	if (len > 0 && *(cur - 1) != '\n') {
-		PyErr_SetString(PyExc_ValueError,
-				"manifest contains trailing garbage");
-		goto quit;
-	}
-
 	Py_INCREF(Py_None);
 	return Py_None;
 quit:
@@ -142,8 +155,8 @@
 {
 	PyObject *dmap, *cmap, *parents = NULL, *ret = NULL;
 	PyObject *fname = NULL, *cname = NULL, *entry = NULL;
-	char *str, *cur, *end, *cpos;
-	int state, mode, size, mtime;
+	char state, *str, *cur, *end, *cpos;
+	int mode, size, mtime;
 	unsigned int flen;
 	int len;
 
@@ -330,7 +343,7 @@
 			 * this. */
 			if (PyDict_SetItem(map, k, dirstate_unset) == -1)
 				goto bail;
-			mode = 0, size = -1, mtime = -1;
+			mtime = -1;
 		}
 		putbe32(mode, p);
 		putbe32(size, p + 4);
@@ -524,11 +537,12 @@
 			      uncomp_len, base_rev, link_rev,
 			      parent_1, parent_2, c_node_id, 20);
 
-	if (entry)
+	if (entry) {
 		PyObject_GC_UnTrack(entry);
+		Py_INCREF(entry);
+	}
 
 	self->cache[pos] = entry;
-	Py_INCREF(entry);
 
 	return entry;
 }
@@ -1195,14 +1209,19 @@
 	long sp;
 	bitmask *seen;
 
+	if (gca == NULL)
+		return PyErr_NoMemory();
+
 	for (i = 0; i < revcount; i++) {
 		if (revs[i] > maxrev)
 			maxrev = revs[i];
 	}
 
 	seen = calloc(sizeof(*seen), maxrev + 1);
-	if (seen == NULL)
+	if (seen == NULL) {
+		Py_DECREF(gca);
 		return PyErr_NoMemory();
+	}
 
 	for (i = 0; i < revcount; i++)
 		seen[revs[i]] = 1ull << i;
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/patch.py
--- a/mercurial/patch.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/patch.py	Tue Oct 01 10:44:59 2013 -0700
@@ -6,8 +6,12 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
-import cStringIO, email.Parser, os, errno, re, posixpath
+import cStringIO, email, os, errno, re, posixpath
 import tempfile, zlib, shutil
+# On python2.4 you have to import these by name or they fail to
+# load. This was not a problem on Python 2.7.
+import email.Generator
+import email.Parser
 
 from i18n import _
 from node import hex, nullid, short
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/pure/parsers.py
--- a/mercurial/pure/parsers.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/pure/parsers.py	Tue Oct 01 10:44:59 2013 -0700
@@ -100,11 +100,11 @@
             # systems with a granularity of 1 sec). This commonly happens
             # for at least a couple of files on 'update'.
             # The user could change the file without changing its size
-            # within the same second. Invalidate the file's stat data in
+            # within the same second. Invalidate the file's mtime in
             # dirstate, forcing future 'status' calls to compare the
-            # contents of the file. This prevents mistakenly treating such
-            # files as clean.
-            e = (e[0], 0, -1, -1)   # mark entry as 'unset'
+            # contents of the file if the size is the same. This prevents
+            # mistakenly treating such files as clean.
+            e = (e[0], e[1], e[2], -1)
             dmap[f] = e
 
         if f in copymap:
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/revlog.py
--- a/mercurial/revlog.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/revlog.py	Tue Oct 01 10:44:59 2013 -0700
@@ -14,7 +14,7 @@
 # import stuff from node for others to import from revlog
 from node import bin, hex, nullid, nullrev
 from i18n import _
-import ancestor, mdiff, parsers, error, util
+import ancestor, mdiff, parsers, error, util, templatefilters
 import struct, zlib, errno
 
 _pack = struct.pack
@@ -845,16 +845,43 @@
 
     def _chunkraw(self, startrev, endrev):
         start = self.start(startrev)
-        length = self.end(endrev) - start
+        end = self.end(endrev)
         if self._inline:
             start += (startrev + 1) * self._io.size
+            end += (endrev + 1) * self._io.size
+        length = end - start
         return self._getchunk(start, length)
 
     def _chunk(self, rev):
         return decompress(self._chunkraw(rev, rev))
 
-    def _chunkbase(self, rev):
-        return self._chunk(rev)
+    def _chunks(self, revs):
+        '''faster version of [self._chunk(rev) for rev in revs]
+
+        Assumes that revs is in ascending order.'''
+        if not revs:
+            return []
+        start = self.start
+        length = self.length
+        inline = self._inline
+        iosize = self._io.size
+        buffer = util.buffer
+
+        l = []
+        ladd = l.append
+
+        # preload the cache
+        self._chunkraw(revs[0], revs[-1])
+        offset, data = self._chunkcache
+
+        for rev in revs:
+            chunkstart = start(rev)
+            if inline:
+                chunkstart += (rev + 1) * iosize
+            chunklength = length(rev)
+            ladd(decompress(buffer(data, chunkstart - offset, chunklength)))
+
+        return l
 
     def _chunkclear(self):
         self._chunkcache = (0, '')
@@ -919,21 +946,22 @@
             else:
                 iterrev -= 1
             e = index[iterrev]
-        chain.reverse()
-        base = iterrev
 
         if iterrev == cachedrev:
             # cache hit
             text = self._cache[2]
+        else:
+            chain.append(iterrev)
+        chain.reverse()
 
         # drop cache to save memory
         self._cache = None
 
-        self._chunkraw(base, rev)
+        bins = self._chunks(chain)
         if text is None:
-            text = str(self._chunkbase(base))
+            text = str(bins[0])
+            bins = bins[1:]
 
-        bins = [self._chunk(r) for r in chain]
         text = mdiff.patches(text, bins)
 
         text = self._checkhash(text, node, rev)
@@ -943,10 +971,16 @@
 
     def _checkhash(self, text, node, rev):
         p1, p2 = self.parents(node)
+        self.checkhash(text, p1, p2, node, rev)
+        return text
+
+    def checkhash(self, text, p1, p2, node, rev=None):
         if node != hash(text, p1, p2):
-            raise RevlogError(_("integrity check failed on %s:%d")
-                              % (self.indexfile, rev))
-        return text
+            revornode = rev
+            if revornode is None:
+                revornode = templatefilters.short(hex(node))
+            raise RevlogError(_("integrity check failed on %s:%s")
+                % (self.indexfile, revornode))
 
     def checkinlinesize(self, tr, fp=None):
         if not self._inline or (self.start(-2) + self.length(-2)) < _maxinline:
@@ -987,7 +1021,8 @@
         tr.replace(self.indexfile, trindex * self._io.size)
         self._chunkclear()
 
-    def addrevision(self, text, transaction, link, p1, p2, cachedelta=None):
+    def addrevision(self, text, transaction, link, p1, p2, cachedelta=None,
+                    node=None):
         """add a revision to the log
 
         text - the revision data to add
@@ -995,11 +1030,14 @@
         link - the linkrev data to add
         p1, p2 - the parent nodeids of the revision
         cachedelta - an optional precomputed delta
+        node - nodeid of revision; typically node is not specified, and it is
+            computed by default as hash(text, p1, p2), however subclasses might
+            use different hashing method (and override checkhash() in such case)
         """
         if link == nullrev:
             raise RevlogError(_("attempted to add linkrev -1 to %s")
                               % self.indexfile)
-        node = hash(text, p1, p2)
+        node = node or hash(text, p1, p2)
         if node in self.nodemap:
             return node
 
@@ -1063,9 +1101,7 @@
             ifh.flush()
             basetext = self.revision(self.node(cachedelta[0]))
             btext[0] = mdiff.patch(basetext, cachedelta[1])
-            chk = hash(btext[0], p1, p2)
-            if chk != node:
-                raise RevlogError(_("consistency error in delta"))
+            self.checkhash(btext[0], p1, p2, node)
             return btext[0]
 
         def builddelta(rev):
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/revset.py
--- a/mercurial/revset.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/revset.py	Tue Oct 01 10:44:59 2013 -0700
@@ -1599,6 +1599,75 @@
     "_list": _list,
 }
 
+# symbols which can't be used for a DoS attack for any given input
+# (e.g. those which accept regexes as plain strings shouldn't be included)
+# functions that just return a lot of changesets (like all) don't count here
+safesymbols = set([
+    "adds",
+    "all",
+    "ancestor",
+    "ancestors",
+    "_firstancestors",
+    "author",
+    "bisect",
+    "bisected",
+    "bookmark",
+    "branch",
+    "branchpoint",
+    "bumped",
+    "bundle",
+    "children",
+    "closed",
+    "converted",
+    "date",
+    "desc",
+    "descendants",
+    "_firstdescendants",
+    "destination",
+    "divergent",
+    "draft",
+    "extinct",
+    "extra",
+    "file",
+    "filelog",
+    "first",
+    "follow",
+    "_followfirst",
+    "head",
+    "heads",
+    "hidden",
+    "id",
+    "keyword",
+    "last",
+    "limit",
+    "_matchfiles",
+    "max",
+    "merge",
+    "min",
+    "modifies",
+    "obsolete",
+    "origin",
+    "outgoing",
+    "p1",
+    "p2",
+    "parents",
+    "present",
+    "public",
+    "remote",
+    "removes",
+    "rev",
+    "reverse",
+    "roots",
+    "sort",
+    "secret",
+    "matching",
+    "tag",
+    "tagged",
+    "user",
+    "unstable",
+    "_list",
+])
+
 methods = {
     "range": rangeset,
     "dagrange": dagrange,
@@ -1935,5 +2004,22 @@
     output = '\n'.join(('  '*l + s) for l, s in lines)
     return output
 
+def depth(tree):
+    if isinstance(tree, tuple):
+        return max(map(depth, tree)) + 1
+    else:
+        return 0
+
+def funcsused(tree):
+    if not isinstance(tree, tuple) or tree[0] in ('string', 'symbol'):
+        return set()
+    else:
+        funcs = set()
+        for s in tree[1:]:
+            funcs |= funcsused(s)
+        if tree[0] == 'func':
+            funcs.add(tree[1][1])
+        return funcs
+
 # tell hggettext to extract docstrings from these functions:
 i18nfunctions = symbols.values()
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/scmutil.py
--- a/mercurial/scmutil.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/scmutil.py	Tue Oct 01 10:44:59 2013 -0700
@@ -755,7 +755,8 @@
 
     ctx = repo[None]
     dirstate = repo.dirstate
-    walkresults = dirstate.walk(matcher, sorted(ctx.substate), True, False)
+    walkresults = dirstate.walk(matcher, sorted(ctx.substate), True, False,
+                                full=False)
     for abs, st in walkresults.iteritems():
         dstate = dirstate[abs]
         if dstate == '?' and audit_path.check(abs):
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/sslutil.py
--- a/mercurial/sslutil.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/sslutil.py	Tue Oct 01 10:44:59 2013 -0700
@@ -14,10 +14,13 @@
     # avoid using deprecated/broken FakeSocket in python 2.6
     import ssl
     CERT_REQUIRED = ssl.CERT_REQUIRED
-    def ssl_wrap_socket(sock, keyfile, certfile,
+    PROTOCOL_SSLv23 = ssl.PROTOCOL_SSLv23
+    PROTOCOL_TLSv1 = ssl.PROTOCOL_TLSv1
+    def ssl_wrap_socket(sock, keyfile, certfile, ssl_version=PROTOCOL_TLSv1,
                 cert_reqs=ssl.CERT_NONE, ca_certs=None):
         sslsocket = ssl.wrap_socket(sock, keyfile, certfile,
-                cert_reqs=cert_reqs, ca_certs=ca_certs)
+                                    cert_reqs=cert_reqs, ca_certs=ca_certs,
+                                    ssl_version=ssl_version)
         # check if wrap_socket failed silently because socket had been closed
         # - see http://bugs.python.org/issue13721
         if not sslsocket.cipher():
@@ -26,9 +29,12 @@
 except ImportError:
     CERT_REQUIRED = 2
 
+    PROTOCOL_SSLv23 = 2
+    PROTOCOL_TLSv1 = 3
+
     import socket, httplib
 
-    def ssl_wrap_socket(sock, key_file, cert_file,
+    def ssl_wrap_socket(sock, keyfile, certfile, ssl_version=PROTOCOL_TLSv1,
                         cert_reqs=CERT_REQUIRED, ca_certs=None):
         if not util.safehasattr(socket, 'ssl'):
             raise util.Abort(_('Python SSL support not found'))
@@ -36,7 +42,7 @@
             raise util.Abort(_(
                 'certificate checking requires Python 2.6'))
 
-        ssl = socket.ssl(sock, key_file, cert_file)
+        ssl = socket.ssl(sock, keyfile, certfile)
         return httplib.FakeSocket(sock, ssl)
 
 def _verifycert(cert, hostname):
@@ -84,15 +90,22 @@
 
 def sslkwargs(ui, host):
     cacerts = ui.config('web', 'cacerts')
+    forcetls = ui.configbool('ui', 'tls', default=True)
+    if forcetls:
+        ssl_version = PROTOCOL_TLSv1
+    else:
+        ssl_version = PROTOCOL_SSLv23
     hostfingerprint = ui.config('hostfingerprints', host)
+    kws = {'ssl_version': ssl_version,
+           }
     if cacerts and not hostfingerprint:
         cacerts = util.expandpath(cacerts)
         if not os.path.exists(cacerts):
             raise util.Abort(_('could not find web.cacerts: %s') % cacerts)
-        return {'ca_certs': cacerts,
-                'cert_reqs': CERT_REQUIRED,
-                }
-    return {}
+        kws.update({'ca_certs': cacerts,
+                    'cert_reqs': CERT_REQUIRED,
+                    })
+    return kws
 
 class validator(object):
     def __init__(self, ui, host):
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/statichttprepo.py
--- a/mercurial/statichttprepo.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/statichttprepo.py	Tue Oct 01 10:44:59 2013 -0700
@@ -89,6 +89,8 @@
         return False
 
 class statichttprepository(localrepo.localrepository):
+    supported = localrepo.localrepository._basesupported
+
     def __init__(self, ui, path):
         self._url = path
         self.ui = ui
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/subrepo.py
--- a/mercurial/subrepo.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/subrepo.py	Tue Oct 01 10:44:59 2013 -0700
@@ -5,7 +5,8 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
-import errno, os, re, xml.dom.minidom, shutil, posixpath, sys
+import errno, os, re, shutil, posixpath, sys
+import xml.dom.minidom
 import stat, subprocess, tarfile
 from i18n import _
 import config, scmutil, util, node, error, cmdutil, bookmarks, match as matchmod
@@ -201,9 +202,24 @@
                 wctx.sub(s).get(r, overwrite)
                 sm[s] = r
             else:
-                debug(s, "both sides changed, merge with", r)
-                wctx.sub(s).merge(r)
-                sm[s] = l
+                debug(s, "both sides changed")
+                option = repo.ui.promptchoice(
+                    _(' subrepository %s diverged (local revision: %s, '
+                      'remote revision: %s)\n'
+                      '(M)erge, keep (l)ocal or keep (r)emote?'
+                      '$$ &Merge $$ &Local $$ &Remote')
+                    % (s, l[1][:12], r[1][:12]), 0)
+                if option == 0:
+                    wctx.sub(s).merge(r)
+                    sm[s] = l
+                    debug(s, "merge with", r)
+                elif option == 1:
+                    sm[s] = l
+                    debug(s, "keep local subrepo revision", l)
+                else:
+                    wctx.sub(s).get(r, overwrite)
+                    sm[s] = r
+                    debug(s, "get remote subrepo revision", r)
         elif ld == a: # remote removed, local unchanged
             debug(s, "remote removed, remove")
             wctx.sub(s).remove()
@@ -237,6 +253,7 @@
 
     # record merged .hgsubstate
     writestate(repo, sm)
+    return sm
 
 def _updateprompt(ui, sub, dirty, local, remote):
     if dirty:
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templatefilters.py
--- a/mercurial/templatefilters.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templatefilters.py	Tue Oct 01 10:44:59 2013 -0700
@@ -15,15 +15,15 @@
     """
     return text.replace('\n', '<br/>\n')
 
-agescales = [("year", 3600 * 24 * 365),
-             ("month", 3600 * 24 * 30),
-             ("week", 3600 * 24 * 7),
-             ("day", 3600 * 24),
-             ("hour", 3600),
-             ("minute", 60),
-             ("second", 1)]
+agescales = [("year", 3600 * 24 * 365, 'Y'),
+             ("month", 3600 * 24 * 30, 'M'),
+             ("week", 3600 * 24 * 7, 'W'),
+             ("day", 3600 * 24, 'd'),
+             ("hour", 3600, 'h'),
+             ("minute", 60, 'm'),
+             ("second", 1, 's')]
 
-def age(date):
+def age(date, abbrev=False):
     """:age: Date. Returns a human-readable date/time difference between the
     given date/time and the current date/time.
     """
@@ -32,7 +32,9 @@
         if c == 1:
             return t
         return t + "s"
-    def fmt(t, c):
+    def fmt(t, c, a):
+        if abbrev:
+            return "%d%s" % (c, a)
         return "%d %s" % (c, plural(t, c))
 
     now = time.time()
@@ -48,12 +50,12 @@
         if delta > agescales[0][1] * 2:
             return util.shortdate(date)
 
-    for t, s in agescales:
+    for t, s, a in agescales:
         n = delta // s
         if n >= 2 or s == 1:
             if future:
-                return '%s from now' % fmt(t, n)
-            return '%s ago' % fmt(t, n)
+                return '%s from now' % fmt(t, n, a)
+            return '%s ago' % fmt(t, n, a)
 
 def basename(path):
     """:basename: Any text. Treats the text as a path, and returns the last
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templater.py
--- a/mercurial/templater.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templater.py	Tue Oct 01 10:44:59 2013 -0700
@@ -139,7 +139,12 @@
 def runsymbol(context, mapping, key):
     v = mapping.get(key)
     if v is None:
-        v = context._defaults.get(key, '')
+        v = context._defaults.get(key)
+    if v is None:
+        try:
+            v = context.process(key, mapping)
+        except TemplateNotFound:
+            v = ''
     if util.safehasattr(v, '__call__'):
         return v(**mapping)
     if isinstance(v, types.GeneratorType):
@@ -449,6 +454,9 @@
             stylelist.append(split[1])
     return ", ".join(sorted(stylelist))
 
+class TemplateNotFound(util.Abort):
+    pass
+
 class templater(object):
 
     def __init__(self, mapfile, filters={}, defaults={}, cache={},
@@ -500,7 +508,8 @@
             try:
                 self.cache[t] = util.readfile(self.map[t][1])
             except KeyError, inst:
-                raise util.Abort(_('"%s" not in template map') % inst.args[0])
+                raise TemplateNotFound(_('"%s" not in template map') %
+                                       inst.args[0])
             except IOError, inst:
                 raise IOError(inst.args[0], _('template file %s: %s') %
                               (self.map[t][1], inst.args[1]))
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/bookmarks.tmpl
--- a/mercurial/templates/paper/bookmarks.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/bookmarks.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -38,8 +38,7 @@
 <form class="search" action="{url|urlescape}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30" /></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 
 <table class="bigtable">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/branches.tmpl
--- a/mercurial/templates/paper/branches.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/branches.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -38,8 +38,7 @@
 <form class="search" action="{url|urlescape}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30" /></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 
 <table class="bigtable">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/changeset.tmpl
--- a/mercurial/templates/paper/changeset.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/changeset.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -36,8 +36,7 @@
 <form class="search" action="{url|urlescape}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30" /></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 
 <div class="description">{desc|strip|escape|websub|nonempty}</div>
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/error.tmpl
--- a/mercurial/templates/paper/error.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/error.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -29,8 +29,7 @@
 <form class="search" action="{url|urlescape}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30"></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 
 <div class="description">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/fileannotate.tmpl
--- a/mercurial/templates/paper/fileannotate.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/fileannotate.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -42,8 +42,7 @@
 <form class="search" action="{url|urlescape}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30" /></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 
 <div class="description">{desc|strip|escape|websub|nonempty}</div>
@@ -65,7 +64,6 @@
  <th class="author">children</th>
  <td class="author">{child%filerevchild}</td>
 </tr>
-{changesettag}
 </table>
 
 <div class="overflow">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/filecomparison.tmpl
--- a/mercurial/templates/paper/filecomparison.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/filecomparison.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -41,8 +41,7 @@
 <form class="search" action="{url|urlescape}log">
 <p>{sessionvars%hiddenformentry}</p>
 <p><input name="rev" id="search1" type="text" size="30" /></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 
 <div class="description">{desc|strip|escape|websub|nonempty}</div>
@@ -64,7 +63,6 @@
  <th>children</th>
  <td>{child%filerevchild}</td>
 </tr>
-{changesettag}
 </table>
 
 <div class="overflow">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/filediff.tmpl
--- a/mercurial/templates/paper/filediff.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/filediff.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -41,8 +41,7 @@
 <form class="search" action="{url|urlescape}log">
 <p>{sessionvars%hiddenformentry}</p>
 <p><input name="rev" id="search1" type="text" size="30" /></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 
 <div class="description">{desc|strip|escape|websub|nonempty}</div>
@@ -64,7 +63,6 @@
  <th>children</th>
  <td>{child%filerevchild}</td>
 </tr>
-{changesettag}
 </table>
 
 <div class="overflow">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/filelog.tmpl
--- a/mercurial/templates/paper/filelog.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/filelog.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -49,8 +49,7 @@
 <form class="search" action="{url|urlescape}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30" /></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 
 <div class="navigate">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/filerevision.tmpl
--- a/mercurial/templates/paper/filerevision.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/filerevision.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -40,8 +40,7 @@
 <form class="search" action="{url|urlescape}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30" /></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 
 <div class="description">{desc|strip|escape|websub|nonempty}</div>
@@ -63,7 +62,6 @@
  <th class="author">children</th>
  <td class="author">{child%filerevchild}</td>
 </tr>
-{changesettag}
 </table>
 
 <div class="overflow">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/graph.tmpl
--- a/mercurial/templates/paper/graph.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/graph.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -43,8 +43,7 @@
 <form class="search" action="{url|urlescape}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30" /></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 
 <div class="navigate">
@@ -123,6 +122,17 @@
 | rev {rev}: {changenav%navgraph}
 </div>
 
+<script type="text/javascript">
+    ajaxScrollInit(
+            '{url|urlescape}graph/{rev}?revcount=%next%',
+            {revcount}+60,
+            function (htmlText, previousVal) \{ return previousVal + 60; },
+            '#wrapper',
+            '<div class="%class%" style="text-align: center;">%text%</div>',
+            'graph'
+    );
+</script>
+
 </div>
 </div>
 
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/help.tmpl
--- a/mercurial/templates/paper/help.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/help.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -28,8 +28,7 @@
 <form class="search" action="{url|urlescape}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30" /></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 <div id="doc">
 {rstdoc(doc, "html")}
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/helptopics.tmpl
--- a/mercurial/templates/paper/helptopics.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/helptopics.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -26,8 +26,7 @@
 <form class="search" action="{url|urlescape}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30" /></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 <table class="bigtable">
 <tr><td colspan="2"><h2><a name="main" href="#topics">Topics</a></h2></td></tr>
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/manifest.tmpl
--- a/mercurial/templates/paper/manifest.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/manifest.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -35,8 +35,7 @@
 <form class="search" action="{url|urlescape}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30" /></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 
 <table class="bigtable">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/map
--- a/mercurial/templates/paper/map	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/map	Tue Oct 01 10:44:59 2013 -0700
@@ -243,3 +243,6 @@
 urlparameter = '{separator}{name}={value|urlescape}'
 hiddenformentry = '<input type="hidden" name="{name}" value="{value|escape}" />'
 breadcrumb = '&gt; <a href="{url|urlescape}">{name|escape}</a> '
+
+searchhint = 'Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="{url|urlescape}help/revsets">revset expression</a>.'
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/search.tmpl
--- a/mercurial/templates/paper/search.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/search.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -23,11 +23,18 @@
 <h2 class="breadcrumb"><a href="/">Mercurial</a> {pathdef%breadcrumb}</h2>
 <h3>searching for '{query|escape}'</h3>
 
+<p>
+Assuming {modedesc}.
+{if(showforcekw, '<a href="{url|urlescape}log?rev={query|urlescape}&forcekw=1">
+Use {showforcekw}</a> instead.')}
+{if(showunforcekw, '<a href="{url|urlescape}log?rev={query|urlescape}">
+Use {showunforcekw}</a> instead.')}
+</p>
+
 <form class="search" action="{url|urlescape}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30" value="{query|escape}"></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 
 <div class="navigate">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/shortlog.tmpl
--- a/mercurial/templates/paper/shortlog.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/shortlog.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -45,8 +45,7 @@
 <form class="search" action="{url|urlescape}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30" value="{query|escape}" /></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 
 <div class="navigate">
@@ -72,6 +71,21 @@
 | rev {rev}: {changenav%navshort}
 </div>
 
+<script type="text/javascript">
+    ajaxScrollInit(
+            '{url|urlescape}shortlog/%next%',
+            '{nextentry%"{node}"}', <!-- NEXTHASH
+            function (htmlText, previousVal) \{
+                var m = htmlText.match(/'(\w+)', <!-- NEXTHASH/);
+                return m ? m[1] : null;
+            },
+            '.bigtable > tbody:nth-of-type(2)',
+            '<tr class="%class%">\
+            <td colspan="3" style="text-align: center;">%text%</td>\
+            </tr>'
+    );
+</script>
+
 </div>
 </div>
 
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/shortlogentry.tmpl
--- a/mercurial/templates/paper/shortlogentry.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/shortlogentry.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -1,5 +1,5 @@
  <tr>
   <td class="age">{date|rfc822date}</td>
   <td class="author">{author|person}</td>
-  <td class="description"><a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">{desc|strip|firstline|escape|nonempty}</a>{inbranch%changelogbranchname}{branches%changelogbranchhead}{tags % '<span class="tag">{name|escape}</span> '}{bookmarks % '<span class="tag">{name|escape}</span> '}</td>
+  <td class="description"><a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">{desc|strip|firstline|escape|nonempty}</a>{inbranch%changelogbranchname}{branches%changelogbranchhead}{tags%changelogtag}{bookmarks%changelogtag}</td>
  </tr>
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/paper/tags.tmpl
--- a/mercurial/templates/paper/tags.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/paper/tags.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -37,8 +37,7 @@
 <form class="search" action="{url|urlescape}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30" /></p>
-<div id="hint">find changesets by author, revision,
-files, or words in the commit message</div>
+<div id="hint">{searchhint}</div>
 </form>
 
 <table class="bigtable">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/raw/search.tmpl
--- a/mercurial/templates/raw/search.tmpl	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/raw/search.tmpl	Tue Oct 01 10:44:59 2013 -0700
@@ -2,5 +2,6 @@
 # HG changesets search
 # Node ID {node}
 # Query "{query}"
+# Mode {modedesc}
 
 {entries%changelogentry}
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/static/mercurial.js
--- a/mercurial/templates/static/mercurial.js	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/static/mercurial.js	Tue Oct 01 10:44:59 2013 -0700
@@ -23,7 +23,7 @@
 ];
 
 function Graph() {
-	
+
 	this.canvas = document.getElementById('graph');
 	if (window.G_vmlCanvasManager) this.canvas = window.G_vmlCanvasManager.initElement(this.canvas);
 	this.ctx = this.canvas.getContext('2d');
@@ -35,13 +35,21 @@
 	this.cell = [2, 0];
 	this.columns = 0;
 	this.revlink = '';
-	
+
+	this.reset = function() {
+		this.bg = [0, 4];
+		this.cell = [2, 0];
+		this.columns = 0;
+		document.getElementById('nodebgs').innerHTML = '';
+		document.getElementById('graphnodes').innerHTML = '';
+	}
+
 	this.scale = function(height) {
 		this.bg_height = height;
 		this.box_size = Math.floor(this.bg_height / 1.2);
 		this.cell_height = this.box_size;
 	}
-	
+
 	function colorPart(num) {
 		num *= 255
 		num = num < 0 ? 0 : num;
@@ -55,7 +63,7 @@
 	}
 
 	this.setColor = function(color, bg, fg) {
-		
+
 		// Set the colour.
 		//
 		// If color is a string, expect an hexadecimal RGB
@@ -81,11 +89,11 @@
 		this.ctx.strokeStyle = s;
 		this.ctx.fillStyle = s;
 		return s;
-		
+
 	}
 
 	this.edge = function(x0, y0, x1, y1, color, width) {
-		
+
 		this.setColor(color, 0.0, 0.65);
 		if(width >= 0)
 			 this.ctx.lineWidth = width;
@@ -93,28 +101,28 @@
 		this.ctx.moveTo(x0, y0);
 		this.ctx.lineTo(x1, y1);
 		this.ctx.stroke();
-		
+
 	}
 
 	this.render = function(data) {
-		
+
 		var backgrounds = '';
 		var nodedata = '';
-		
+
 		for (var i in data) {
-			
+
 			var parity = i % 2;
 			this.cell[1] += this.bg_height;
 			this.bg[1] += this.bg_height;
-			
+
 			var cur = data[i];
 			var node = cur[1];
 			var edges = cur[2];
 			var fold = false;
-			
+
 			var prevWidth = this.ctx.lineWidth;
 			for (var j in edges) {
-				
+
 				line = edges[j];
 				start = line[0];
 				end = line[1];
@@ -125,50 +133,50 @@
 				var branchcolor = line[4];
 				if(branchcolor)
 					color = branchcolor;
-				
+
 				if (end > this.columns || start > this.columns) {
 					this.columns += 1;
 				}
-				
+
 				if (start == this.columns && start > end) {
 					var fold = true;
 				}
-				
+
 				x0 = this.cell[0] + this.box_size * start + this.box_size / 2;
 				y0 = this.bg[1] - this.bg_height / 2;
 				x1 = this.cell[0] + this.box_size * end + this.box_size / 2;
 				y1 = this.bg[1] + this.bg_height / 2;
-				
+
 				this.edge(x0, y0, x1, y1, color, width);
-				
+
 			}
 			this.ctx.lineWidth = prevWidth;
-			
+
 			// Draw the revision node in the right column
-			
+
 			column = node[0]
 			color = node[1]
-			
+
 			radius = this.box_size / 8;
 			x = this.cell[0] + this.box_size * column + this.box_size / 2;
 			y = this.bg[1] - this.bg_height / 2;
 			var add = this.vertex(x, y, color, parity, cur);
 			backgrounds += add[0];
 			nodedata += add[1];
-			
+
 			if (fold) this.columns -= 1;
-			
+
 		}
-		
+
 		document.getElementById('nodebgs').innerHTML += backgrounds;
 		document.getElementById('graphnodes').innerHTML += nodedata;
-		
+
 	}
 
 }
 
 
-process_dates = (function(document, RegExp, Math, isNaN, Date, _false, _true){
+function process_dates(){
 
 	// derived from code from mercurial/templatefilter.py
 
@@ -219,9 +227,9 @@
 
 		var delta = Math.floor((now.getTime() - once.getTime()) / 1000);
 
-		var future = _false;
+		var future = false;
 		if (delta < 0){
-			future = _true;
+			future = true;
 			delta = -delta;
 			if (delta > (30 * scales.year)){
 				return "in the distant future";
@@ -245,25 +253,24 @@
 		}
 	}
 
-	return function(){
-		var nodes = document.getElementsByTagName('*');
-		var ageclass = new RegExp('\\bage\\b');
-		var dateclass = new RegExp('\\bdate\\b');
-		for (var i=0; i<nodes.length; ++i){
-			var node = nodes[i];
-			var classes = node.className;
-			if (ageclass.test(classes)){
-				var agevalue = age(node.textContent);
-				if (dateclass.test(classes)){
-					// We want both: date + (age)
-					node.textContent += ' ('+agevalue+')';
-				} else {
-					node.textContent = agevalue;
-				}
+	var nodes = document.getElementsByTagName('*');
+	var ageclass = new RegExp('\\bage\\b');
+	var dateclass = new RegExp('\\bdate\\b');
+	for (var i=0; i<nodes.length; ++i){
+		var node = nodes[i];
+		var classes = node.className;
+		if (ageclass.test(classes)){
+			var agevalue = age(node.textContent);
+			if (dateclass.test(classes)){
+				// We want both: date + (age)
+				node.textContent += ' ('+agevalue+')';
+			} else {
+				node.title = node.textContent;
+				node.textContent = agevalue;
 			}
 		}
 	}
-})(document, RegExp, Math, isNaN, Date, false, true)
+}
 
 function toggleDiffstat() {
     var curdetails = document.getElementById('diffstatdetails').style.display;
@@ -297,3 +304,137 @@
 
     setLinewrap(!getLinewrap());
 }
+
+function format(str, replacements) {
+    return str.replace(/%(\w+)%/g, function(match, p1) {
+        return String(replacements[p1]);
+    });
+}
+
+function makeRequest(url, method, onstart, onsuccess, onerror, oncomplete) {
+    xfr = new XMLHttpRequest();
+    xfr.onreadystatechange = function() {
+        if (xfr.readyState === 4) {
+            try {
+                if (xfr.status === 200) {
+                    onsuccess(xfr.responseText);
+                } else {
+                    throw 'server error';
+                }
+            } catch (e) {
+                onerror(e);
+            } finally {
+                oncomplete();
+            }
+        }
+    };
+
+    xfr.open(method, url);
+    xfr.send();
+    onstart();
+    return xfr;
+}
+
+function removeByClassName(className) {
+    var nodes = document.getElementsByClassName(className);
+    while (nodes.length) {
+        nodes[0].parentNode.removeChild(nodes[0]);
+    }
+}
+
+function docFromHTML(html) {
+    var doc = document.implementation.createHTMLDocument('');
+    doc.documentElement.innerHTML = html;
+    return doc;
+}
+
+function appendFormatHTML(element, formatStr, replacements) {
+    element.insertAdjacentHTML('beforeend', format(formatStr, replacements));
+}
+
+function ajaxScrollInit(urlFormat,
+                        nextPageVar,
+                        nextPageVarGet,
+                        containerSelector,
+                        messageFormat,
+                        mode) {
+    updateInitiated = false;
+    container = document.querySelector(containerSelector);
+
+    function scrollHandler() {
+        if (updateInitiated) {
+            return;
+        }
+
+        var scrollHeight = document.documentElement.scrollHeight;
+        var clientHeight = document.documentElement.clientHeight;
+        var scrollTop = document.body.scrollTop
+            || document.documentElement.scrollTop;
+
+        if (scrollHeight - (scrollTop + clientHeight) < 50) {
+            updateInitiated = true;
+            removeByClassName('scroll-loading-error');
+            container.lastElementChild.classList.add('scroll-separator');
+
+            if (!nextPageVar) {
+                var message = {
+                    class: 'scroll-loading-info',
+                    text: 'No more entries'
+                };
+                appendFormatHTML(container, messageFormat, message);
+                return;
+            }
+
+            makeRequest(
+                format(urlFormat, {next: nextPageVar}),
+                'GET',
+                function onstart() {
+                    var message = {
+                        class: 'scroll-loading',
+                        text: 'Loading...'
+                    };
+                    appendFormatHTML(container, messageFormat, message);
+                },
+                function onsuccess(htmlText) {
+                    nextPageVar = nextPageVarGet(htmlText, nextPageVar);
+
+                    if (mode == 'graph') {
+                        var addHeight = htmlText.match(/^<canvas id="graph".*height="(\d+)"><\/canvas>$/m)[1];
+                        addHeight = parseInt(addHeight);
+                        graph.canvas.height = addHeight;
+
+                        var dataStr = htmlText.match(/^\s*var data = (.*);$/m)[1];
+                        var data = JSON.parse(dataStr)
+                        graph.reset();
+                        graph.render(data);
+                    } else {
+                        var doc = docFromHTML(htmlText);
+                        var nodes = doc.querySelector(containerSelector).children;
+                        while (nodes.length) {
+                            var node = nodes[0];
+                            node = document.adoptNode(node);
+                            container.appendChild(node);
+                        }
+                        process_dates();
+                    }
+                },
+                function onerror(errorText) {
+                    var message = {
+                        class: 'scroll-loading-error',
+                        text: 'Error: ' + errorText
+                    };
+                    appendFormatHTML(container, messageFormat, message);
+                },
+                function oncomplete() {
+                    removeByClassName('scroll-loading');
+                    updateInitiated = false;
+                    scrollHandler();
+                }
+            );
+        }
+    }
+
+    window.addEventListener('scroll', scrollHandler);
+    window.addEventListener('resize', scrollHandler);
+    scrollHandler();
+}
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/templates/static/style-paper.css
--- a/mercurial/templates/static/style-paper.css	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/templates/static/style-paper.css	Tue Oct 01 10:44:59 2013 -0700
@@ -382,3 +382,27 @@
 .breadcrumb a {
     color: blue;
 }
+
+.scroll-loading {
+  -webkit-animation: change_color 1s linear 0s infinite alternate;
+  -moz-animation: change_color 1s linear 0s infinite alternate;
+  -o-animation: change_color 1s linear 0s infinite alternate;
+  animation: change_color 1s linear 0s infinite alternate;
+}
+
+@-webkit-keyframes change_color {
+  from { background-color: #A0CEFF; } to {  }
+}
+@-moz-keyframes change_color {
+  from { background-color: #A0CEFF; } to {  }
+}
+@-o-keyframes change_color {
+  from { background-color: #A0CEFF; } to {  }
+}
+@keyframes change_color {
+  from { background-color: #A0CEFF; } to {  }
+}
+
+.scroll-loading-error {
+    background-color: #FFCCCC !important;
+}
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/ui.py
--- a/mercurial/ui.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/ui.py	Tue Oct 01 10:44:59 2013 -0700
@@ -176,7 +176,7 @@
             alternates = [name]
 
         for n in alternates:
-            value = self._data(untrusted).get(section, name, None)
+            value = self._data(untrusted).get(section, n, None)
             if value is not None:
                 name = n
                 break
@@ -184,10 +184,11 @@
             value = default
 
         if self.debugflag and not untrusted and self._reportuntrusted:
-            uvalue = self._ucfg.get(section, name)
-            if uvalue is not None and uvalue != value:
-                self.debug("ignoring untrusted configuration option "
-                           "%s.%s = %s\n" % (section, name, uvalue))
+            for n in alternates:
+                uvalue = self._ucfg.get(section, n)
+                if uvalue is not None and uvalue != value:
+                    self.debug("ignoring untrusted configuration option "
+                               "%s.%s = %s\n" % (section, n, uvalue))
         return value
 
     def configpath(self, section, name, default=None, untrusted=False):
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/unionrepo.py
--- a/mercurial/unionrepo.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/unionrepo.py	Tue Oct 01 10:44:59 2013 -0700
@@ -70,7 +70,7 @@
                 self.revlog2.rev(self.node(rev1)),
                 self.revlog2.rev(self.node(rev2)))
         elif rev1 <= self.repotiprev and rev2 <= self.repotiprev:
-            return revlog.revlog.revdiff(self, rev1, rev2)
+            return self.baserevdiff(rev1, rev2)
 
         return mdiff.textdiff(self.revision(self.node(rev1)),
                               self.revision(self.node(rev2)))
@@ -93,10 +93,20 @@
             text = self.revlog2.revision(node)
             self._cache = (node, rev, text)
         else:
-            text = revlog.revlog.revision(self, rev)
+            text = self.baserevision(rev)
             # already cached
         return text
 
+    def baserevision(self, nodeorrev):
+        # Revlog subclasses may override 'revision' method to modify format of
+        # content retrieved from revlog. To use unionrevlog with such class one
+        # needs to override 'baserevision' and make more specific call here.
+        return revlog.revlog.revision(self, nodeorrev)
+
+    def baserevdiff(self, rev1, rev2):
+        # Exists for the same purpose as baserevision.
+        return revlog.revlog.revdiff(self, rev1, rev2)
+
     def addrevision(self, text, transaction, link, p1=None, p2=None, d=None):
         raise NotImplementedError
     def addgroup(self, revs, linkmapper, transaction):
@@ -114,6 +124,15 @@
         unionrevlog.__init__(self, opener, self.indexfile, changelog2,
                              linkmapper)
 
+    def baserevision(self, nodeorrev):
+        # Although changelog doesn't override 'revision' method, some extensions
+        # may replace this class with another that does. Same story with
+        # manifest and filelog classes.
+        return changelog.changelog.revision(self, nodeorrev)
+
+    def baserevdiff(self, rev1, rev2):
+        return changelog.changelog.revdiff(self, rev1, rev2)
+
 class unionmanifest(unionrevlog, manifest.manifest):
     def __init__(self, opener, opener2, linkmapper):
         manifest.manifest.__init__(self, opener)
@@ -121,6 +140,12 @@
         unionrevlog.__init__(self, opener, self.indexfile, manifest2,
                              linkmapper)
 
+    def baserevision(self, nodeorrev):
+        return manifest.manifest.revision(self, nodeorrev)
+
+    def baserevdiff(self, rev1, rev2):
+        return manifest.manifest.revdiff(self, rev1, rev2)
+
 class unionfilelog(unionrevlog, filelog.filelog):
     def __init__(self, opener, path, opener2, linkmapper, repo):
         filelog.filelog.__init__(self, opener, path)
@@ -129,6 +154,12 @@
                              linkmapper)
         self._repo = repo
 
+    def baserevision(self, nodeorrev):
+        return filelog.filelog.revision(self, nodeorrev)
+
+    def baserevdiff(self, rev1, rev2):
+        return filelog.filelog.revdiff(self, rev1, rev2)
+
     def _file(self, f):
         self._repo.file(f)
 
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/url.py
--- a/mercurial/url.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/url.py	Tue Oct 01 10:44:59 2013 -0700
@@ -108,8 +108,13 @@
 
     def proxy_open(self, req, proxy, type_):
         host = req.get_host().split(':')[0]
-        if host in self.no_list:
-            return None
+        for e in self.no_list:
+            if host == e:
+                return None
+            if e.startswith('*.') and host.endswith(e[2:]):
+                return None
+            if e.startswith('.') and host.endswith(e[1:]):
+                return None
 
         # work around a bug in Python < 2.4.2
         # (it leaves a "\n" at the end of Proxy-authorization headers)
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/util.h
--- a/mercurial/util.h	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/util.h	Tue Oct 01 10:44:59 2013 -0700
@@ -121,7 +121,12 @@
 #ifdef _MSC_VER
 /* msvc 6.0 has problems */
 #define inline __inline
+typedef signed char int8_t;
+typedef short int16_t;
+typedef long int32_t;
+typedef __int64 int64_t;
 typedef unsigned char uint8_t;
+typedef unsigned short uint16_t;
 typedef unsigned long uint32_t;
 typedef unsigned __int64 uint64_t;
 #else
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b mercurial/util.py
--- a/mercurial/util.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/mercurial/util.py	Tue Oct 01 10:44:59 2013 -0700
@@ -242,6 +242,10 @@
     def __contains__(self, key):
         return key in self._cache
 
+    def clear(self):
+        self._cache.clear()
+        self._order = deque()
+
 def lrucachefunc(func):
     '''cache most recent results of function calls'''
     cache = {}
@@ -465,7 +469,8 @@
         return str(val)
     origcmd = cmd
     cmd = quotecommand(cmd)
-    if sys.platform == 'plan9':
+    if sys.platform == 'plan9' and (sys.version_info[0] == 2
+                                    and sys.version_info[1] < 7):
         # subprocess kludge to work around issues in half-baked Python
         # ports, notably bichued/python:
         if not cwd is None:
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b setup.py
--- a/setup.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/setup.py	Tue Oct 01 10:44:59 2013 -0700
@@ -423,14 +423,21 @@
 
 pymodules = []
 
+common_depends = ['mercurial/util.h']
+
 extmodules = [
-    Extension('mercurial.base85', ['mercurial/base85.c']),
-    Extension('mercurial.bdiff', ['mercurial/bdiff.c']),
-    Extension('mercurial.diffhelpers', ['mercurial/diffhelpers.c']),
-    Extension('mercurial.mpatch', ['mercurial/mpatch.c']),
+    Extension('mercurial.base85', ['mercurial/base85.c'],
+              depends=common_depends),
+    Extension('mercurial.bdiff', ['mercurial/bdiff.c'],
+              depends=common_depends),
+    Extension('mercurial.diffhelpers', ['mercurial/diffhelpers.c'],
+              depends=common_depends),
+    Extension('mercurial.mpatch', ['mercurial/mpatch.c'],
+              depends=common_depends),
     Extension('mercurial.parsers', ['mercurial/dirs.c',
                                     'mercurial/parsers.c',
-                                    'mercurial/pathencode.c']),
+                                    'mercurial/pathencode.c'],
+              depends=common_depends),
     ]
 
 osutil_ldflags = []
@@ -443,7 +450,8 @@
     pymodules.append('mercurial.pure.osutil')
 else:
     extmodules.append(Extension('mercurial.osutil', ['mercurial/osutil.c'],
-                                extra_link_args=osutil_ldflags))
+                                extra_link_args=osutil_ldflags,
+                                depends=common_depends))
 
 # the -mno-cygwin option has been deprecated for years
 Mingw32CCompiler = cygwinccompiler.Mingw32CCompiler
@@ -467,7 +475,8 @@
     if hasfunction(cc, 'inotify_add_watch'):
         inotify = Extension('hgext.inotify.linux._inotify',
                             ['hgext/inotify/linux/_inotify.c'],
-                            ['mercurial'])
+                            ['mercurial'],
+                            depends=common_depends)
         inotify.optional = True
         extmodules.append(inotify)
         packages.extend(['hgext.inotify', 'hgext.inotify.linux'])
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/run-tests.py
--- a/tests/run-tests.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/run-tests.py	Tue Oct 01 10:44:59 2013 -0700
@@ -460,6 +460,9 @@
     if options.compiler:
         compiler = '--compiler ' + options.compiler
     pure = options.pure and "--pure" or ""
+    py3 = ''
+    if sys.version_info[0] == 3:
+        py3 = '--c2to3'
 
     # Run installer in hg root
     script = os.path.realpath(sys.argv[0])
@@ -472,11 +475,11 @@
         # least on Windows for now, deal with .pydistutils.cfg bugs
         # when they happen.
         nohome = ''
-    cmd = ('%(exe)s setup.py %(pure)s clean --all'
+    cmd = ('%(exe)s setup.py %(py3)s %(pure)s clean --all'
            ' build %(compiler)s --build-base="%(base)s"'
            ' install --force --prefix="%(prefix)s" --install-lib="%(libdir)s"'
            ' --install-scripts="%(bindir)s" %(nohome)s >%(logfile)s 2>&1'
-           % dict(exe=sys.executable, pure=pure, compiler=compiler,
+           % dict(exe=sys.executable, py3=py3, pure=pure, compiler=compiler,
                   base=os.path.join(HGTMP, "build"),
                   prefix=INST, libdir=PYTHONDIR, bindir=BINDIR,
                   nohome=nohome, logfile=installerrs))
@@ -921,8 +924,10 @@
                 else:
                     return ignore("doesn't match keyword")
 
+    if not lctest.startswith("test-"):
+        return skip("not a test file")
     for ext, func, out in testtypes:
-        if lctest.startswith("test-") and lctest.endswith(ext):
+        if lctest.endswith(ext):
             runner = func
             ref = os.path.join(TESTDIR, test + out)
             break
@@ -1043,7 +1048,7 @@
     if _hgpath is not None:
         return _hgpath
 
-    cmd = '%s -c "import mercurial; print mercurial.__path__[0]"'
+    cmd = '%s -c "import mercurial; print (mercurial.__path__[0])"'
     pipe = os.popen(cmd % PYTHON)
     try:
         _hgpath = pipe.read().strip()
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-casecollision-merge.t
--- a/tests/test-casecollision-merge.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-casecollision-merge.t	Tue Oct 01 10:44:59 2013 -0700
@@ -293,7 +293,7 @@
   [255]
 
   $ hg update --check
-  abort: uncommitted local changes
+  abort: uncommitted changes
   [255]
 
   $ hg update --clean
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-command-template.t
--- a/tests/test-command-template.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-command-template.t	Tue Oct 01 10:44:59 2013 -0700
@@ -500,6 +500,28 @@
   1
   0
 
+Missing non-standard names give no error (backward compatibility):
+
+  $ echo "changeset = '{c}'" > t
+  $ hg log --style ./t
+
+Defining non-standard name works:
+
+  $ cat <<EOF > t
+  > changeset = '{c}'
+  > c = q
+  > EOF
+  $ hg log --style ./t
+  8
+  7
+  6
+  5
+  4
+  3
+  2
+  1
+  0
+
 ui.style works:
 
   $ echo '[ui]' > .hg/hgrc
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-extension.t
--- a/tests/test-extension.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-extension.t	Tue Oct 01 10:44:59 2013 -0700
@@ -406,17 +406,21 @@
   > EOF
   $ echo "debugissue811 = $debugpath" >> $HGRCPATH
   $ echo "mq=" >> $HGRCPATH
+  $ echo "strip=" >> $HGRCPATH
   $ echo "hgext.mq=" >> $HGRCPATH
   $ echo "hgext/mq=" >> $HGRCPATH
 
 Show extensions:
+(note that mq force load strip, also checking it's not loaded twice)
 
   $ hg debugextensions
   debugissue811
+  strip
   mq
 
 Disabled extension commands:
 
+  $ ORGHGRCPATH=$HGRCPATH
   $ HGRCPATH=
   $ export HGRCPATH
   $ hg help email
@@ -573,3 +577,134 @@
   ** Python * (glob)
   ** Mercurial Distributed SCM (*) (glob)
   ** Extensions loaded: throw
+
+Restore HGRCPATH
+
+  $ HGRCPATH=$ORGHGRCPATH
+  $ export HGRCPATH
+
+Commands handling multiple repositories at a time should invoke only
+"reposetup()" of extensions enabling in the target repository.
+
+  $ mkdir reposetup-test
+  $ cd reposetup-test
+
+  $ cat > $TESTTMP/reposetuptest.py <<EOF
+  > from mercurial import extensions
+  > def reposetup(ui, repo):
+  >     ui.write('reposetup() for %s\n' % (repo.root))
+  > EOF
+  $ hg init src
+  $ echo a > src/a
+  $ hg -R src commit -Am '#0 at src/a'
+  adding a
+  $ echo '[extensions]' >> src/.hg/hgrc
+  $ echo '# enable extension locally' >> src/.hg/hgrc
+  $ echo "reposetuptest = $TESTTMP/reposetuptest.py" >> src/.hg/hgrc
+  $ hg -R src status
+  reposetup() for $TESTTMP/reposetup-test/src
+
+  $ hg clone -U src clone-dst1
+  reposetup() for $TESTTMP/reposetup-test/src
+  $ hg init push-dst1
+  $ hg -q -R src push push-dst1
+  reposetup() for $TESTTMP/reposetup-test/src
+  $ hg init pull-src1
+  $ hg -q -R pull-src1 pull src
+  reposetup() for $TESTTMP/reposetup-test/src
+
+  $ echo '[extensions]' >> $HGRCPATH
+  $ echo '# disable extension globally and explicitly' >> $HGRCPATH
+  $ echo 'reposetuptest = !' >> $HGRCPATH
+  $ hg clone -U src clone-dst2
+  reposetup() for $TESTTMP/reposetup-test/src
+  $ hg init push-dst2
+  $ hg -q -R src push push-dst2
+  reposetup() for $TESTTMP/reposetup-test/src
+  $ hg init pull-src2
+  $ hg -q -R pull-src2 pull src
+  reposetup() for $TESTTMP/reposetup-test/src
+
+  $ echo '[extensions]' >> $HGRCPATH
+  $ echo '# enable extension globally' >> $HGRCPATH
+  $ echo "reposetuptest = $TESTTMP/reposetuptest.py" >> $HGRCPATH
+  $ hg clone -U src clone-dst3
+  reposetup() for $TESTTMP/reposetup-test/src
+  reposetup() for $TESTTMP/reposetup-test/clone-dst3
+  $ hg init push-dst3
+  reposetup() for $TESTTMP/reposetup-test/push-dst3
+  $ hg -q -R src push push-dst3
+  reposetup() for $TESTTMP/reposetup-test/src
+  reposetup() for $TESTTMP/reposetup-test/push-dst3
+  $ hg init pull-src3
+  reposetup() for $TESTTMP/reposetup-test/pull-src3
+  $ hg -q -R pull-src3 pull src
+  reposetup() for $TESTTMP/reposetup-test/pull-src3
+  reposetup() for $TESTTMP/reposetup-test/src
+
+  $ echo '[extensions]' >> src/.hg/hgrc
+  $ echo '# disable extension locally' >> src/.hg/hgrc
+  $ echo 'reposetuptest = !' >> src/.hg/hgrc
+  $ hg clone -U src clone-dst4
+  reposetup() for $TESTTMP/reposetup-test/clone-dst4
+  $ hg init push-dst4
+  reposetup() for $TESTTMP/reposetup-test/push-dst4
+  $ hg -q -R src push push-dst4
+  reposetup() for $TESTTMP/reposetup-test/push-dst4
+  $ hg init pull-src4
+  reposetup() for $TESTTMP/reposetup-test/pull-src4
+  $ hg -q -R pull-src4 pull src
+  reposetup() for $TESTTMP/reposetup-test/pull-src4
+
+disabling in command line overlays with all configuration
+  $ hg --config extensions.reposetuptest=! clone -U src clone-dst5
+  $ hg --config extensions.reposetuptest=! init push-dst5
+  $ hg --config extensions.reposetuptest=! -q -R src push push-dst5
+  $ hg --config extensions.reposetuptest=! init pull-src5
+  $ hg --config extensions.reposetuptest=! -q -R pull-src5 pull src
+
+  $ echo '[extensions]' >> $HGRCPATH
+  $ echo '# disable extension globally and explicitly' >> $HGRCPATH
+  $ echo 'reposetuptest = !' >> $HGRCPATH
+  $ hg init parent
+  $ hg init parent/sub1
+  $ echo 1 > parent/sub1/1
+  $ hg -R parent/sub1 commit -Am '#0 at parent/sub1'
+  adding 1
+  $ hg init parent/sub2
+  $ hg init parent/sub2/sub21
+  $ echo 21 > parent/sub2/sub21/21
+  $ hg -R parent/sub2/sub21 commit -Am '#0 at parent/sub2/sub21'
+  adding 21
+  $ cat > parent/sub2/.hgsub <<EOF
+  > sub21 = sub21
+  > EOF
+  $ hg -R parent/sub2 commit -Am '#0 at parent/sub2'
+  adding .hgsub
+  $ hg init parent/sub3
+  $ echo 3 > parent/sub3/3
+  $ hg -R parent/sub3 commit -Am '#0 at parent/sub3'
+  adding 3
+  $ cat > parent/.hgsub <<EOF
+  > sub1 = sub1
+  > sub2 = sub2
+  > sub3 = sub3
+  > EOF
+  $ hg -R parent commit -Am '#0 at parent'
+  adding .hgsub
+  $ echo '[extensions]' >> parent/.hg/hgrc
+  $ echo '# enable extension locally' >> parent/.hg/hgrc
+  $ echo "reposetuptest = $TESTTMP/reposetuptest.py" >> parent/.hg/hgrc
+  $ cp parent/.hg/hgrc parent/sub2/.hg/hgrc
+  $ hg -R parent status -S -A
+  reposetup() for $TESTTMP/reposetup-test/parent
+  reposetup() for $TESTTMP/reposetup-test/parent/sub2
+  C .hgsub
+  C .hgsubstate
+  C sub1/1
+  C sub2/.hgsub
+  C sub2/.hgsubstate
+  C sub2/sub21/21
+  C sub3/3
+
+  $ cd ..
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-graft.t
--- a/tests/test-graft.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-graft.t	Tue Oct 01 10:44:59 2013 -0700
@@ -71,7 +71,7 @@
   $ hg up -q 0
   $ echo foo > a
   $ hg graft 1
-  abort: outstanding uncommitted changes
+  abort: uncommitted changes
   [255]
   $ hg revert a
 
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-help.t
--- a/tests/test-help.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-help.t	Tue Oct 01 10:44:59 2013 -0700
@@ -930,8 +930,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   <table class="bigtable">
   <tr><td colspan="2"><h2><a name="main" href="#topics">Topics</a></h2></td></tr>
@@ -1490,8 +1490,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   <div id="doc">
   <p>
@@ -1656,8 +1656,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   <div id="doc">
   <p>
@@ -1852,8 +1852,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   <div id="doc">
   <h1>Specifying Single Revisions</h1>
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-hgweb-commands.t
--- a/tests/test-hgweb-commands.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-hgweb-commands.t	Tue Oct 01 10:44:59 2013 -0700
@@ -258,8 +258,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" value="" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="navigate">
@@ -305,6 +305,21 @@
   | rev 3: <a href="/shortlog/2ef0ac749a14">(0)</a> <a href="/shortlog/tip">tip</a> 
   </div>
   
+  <script type="text/javascript">
+      ajaxScrollInit(
+              '/shortlog/%next%',
+              '', <!-- NEXTHASH
+              function (htmlText, previousVal) {
+                  var m = htmlText.match(/'(\w+)', <!-- NEXTHASH/);
+                  return m ? m[1] : null;
+              },
+              '.bigtable > tbody:nth-of-type(2)',
+              '<tr class="%class%">\
+              <td colspan="3" style="text-align: center;">%text%</td>\
+              </tr>'
+      );
+  </script>
+  
   </div>
   </div>
   
@@ -362,8 +377,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">base</div>
@@ -495,11 +510,17 @@
   <h2 class="breadcrumb"><a href="/">Mercurial</a> </h2>
   <h3>searching for 'base'</h3>
   
+  <p>
+  Assuming literal keyword search.
+  
+  
+  </p>
+  
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" value="base"></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="navigate">
@@ -537,6 +558,162 @@
   </body>
   </html>
   
+  $ "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT 'log?rev=stable&style=raw' | grep 'revision:'
+  revision:    2
+
+Search with revset syntax
+
+  $ "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT 'log?rev=tip^&style=raw'
+  200 Script output follows
+  
+  
+  # HG changesets search
+  # Node ID cad8025a2e87f88c06259790adfa15acb4080123
+  # Query "tip^"
+  # Mode revset expression search
+  
+  changeset:   1d22e65f027e5a0609357e7d8e7508cd2ba5d2fe
+  revision:    2
+  user:        test
+  date:        Thu, 01 Jan 1970 00:00:00 +0000
+  summary:     branch
+  branch:      stable
+  
+  
+  $ "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT 'log?rev=last(all(),2)^&style=raw'
+  200 Script output follows
+  
+  
+  # HG changesets search
+  # Node ID cad8025a2e87f88c06259790adfa15acb4080123
+  # Query "last(all(),2)^"
+  # Mode revset expression search
+  
+  changeset:   1d22e65f027e5a0609357e7d8e7508cd2ba5d2fe
+  revision:    2
+  user:        test
+  date:        Thu, 01 Jan 1970 00:00:00 +0000
+  summary:     branch
+  branch:      stable
+  
+  changeset:   a4f92ed23982be056b9852de5dfe873eaac7f0de
+  revision:    1
+  user:        test
+  date:        Thu, 01 Jan 1970 00:00:00 +0000
+  summary:     Added tag 1.0 for changeset 2ef0ac749a14
+  branch:      default
+  
+  
+  $ "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT 'log?rev=last(all(,2)^&style=raw'
+  200 Script output follows
+  
+  
+  # HG changesets search
+  # Node ID cad8025a2e87f88c06259790adfa15acb4080123
+  # Query "last(all(,2)^"
+  # Mode literal keyword search
+  
+  
+  $ "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT 'log?rev=last(al(),2)^&style=raw'
+  200 Script output follows
+  
+  
+  # HG changesets search
+  # Node ID cad8025a2e87f88c06259790adfa15acb4080123
+  # Query "last(al(),2)^"
+  # Mode literal keyword search
+  
+  
+  $ "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT 'log?rev=bookmark(anotherthing)&style=raw'
+  200 Script output follows
+  
+  
+  # HG changesets search
+  # Node ID cad8025a2e87f88c06259790adfa15acb4080123
+  # Query "bookmark(anotherthing)"
+  # Mode revset expression search
+  
+  changeset:   2ef0ac749a14e4f57a5a822464a0902c6f7f448f
+  revision:    0
+  user:        test
+  date:        Thu, 01 Jan 1970 00:00:00 +0000
+  summary:     base
+  tag:         1.0
+  bookmark:    anotherthing
+  
+  
+  $ "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT 'log?rev=bookmark(abc)&style=raw'
+  200 Script output follows
+  
+  
+  # HG changesets search
+  # Node ID cad8025a2e87f88c06259790adfa15acb4080123
+  # Query "bookmark(abc)"
+  # Mode literal keyword search
+  
+  
+  $ "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT 'log?rev=deadbeef:&style=raw'
+  200 Script output follows
+  
+  
+  # HG changesets search
+  # Node ID cad8025a2e87f88c06259790adfa15acb4080123
+  # Query "deadbeef:"
+  # Mode literal keyword search
+  
+  
+
+  $ "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT 'log?rev=user("test")&style=raw'
+  200 Script output follows
+  
+  
+  # HG changesets search
+  # Node ID cad8025a2e87f88c06259790adfa15acb4080123
+  # Query "user("test")"
+  # Mode revset expression search
+  
+  changeset:   cad8025a2e87f88c06259790adfa15acb4080123
+  revision:    3
+  user:        test
+  date:        Thu, 01 Jan 1970 00:00:00 +0000
+  summary:     branch commit with null character: \x00 (esc)
+  branch:      unstable
+  tag:         tip
+  bookmark:    something
+  
+  changeset:   1d22e65f027e5a0609357e7d8e7508cd2ba5d2fe
+  revision:    2
+  user:        test
+  date:        Thu, 01 Jan 1970 00:00:00 +0000
+  summary:     branch
+  branch:      stable
+  
+  changeset:   a4f92ed23982be056b9852de5dfe873eaac7f0de
+  revision:    1
+  user:        test
+  date:        Thu, 01 Jan 1970 00:00:00 +0000
+  summary:     Added tag 1.0 for changeset 2ef0ac749a14
+  branch:      default
+  
+  changeset:   2ef0ac749a14e4f57a5a822464a0902c6f7f448f
+  revision:    0
+  user:        test
+  date:        Thu, 01 Jan 1970 00:00:00 +0000
+  summary:     base
+  tag:         1.0
+  bookmark:    anotherthing
+  
+  
+  $ "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT 'log?rev=user("re:test")&style=raw'
+  200 Script output follows
+  
+  
+  # HG changesets search
+  # Node ID cad8025a2e87f88c06259790adfa15acb4080123
+  # Query "user("re:test")"
+  # Mode literal keyword search
+  
+  
 
 File-related
 
@@ -614,8 +791,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">Added tag 1.0 for changeset 2ef0ac749a14</div>
@@ -637,7 +814,6 @@
    <th class="author">children</th>
    <td class="author"><a href="/file/1d22e65f027e/foo">1d22e65f027e</a> </td>
   </tr>
-  
   </table>
   
   <div class="overflow">
@@ -1256,8 +1432,10 @@
 
 Graph json escape of multibyte character
 
-  $ "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT 'graph/' \
-  >     | grep -a '^var data ='
+  $ "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT 'graph/' > out
+  >>> for line in open("out"):
+  ...     if line.startswith("var data ="):
+  ...         print line,
   var data = [["061dd13ba3c3", [0, 1], [[0, 0, 1, -1, ""]], "\\u80fd", "test", "1970-01-01", ["unstable", true], ["tip"], ["something"]], ["cad8025a2e87", [0, 1], [[0, 0, 1, 3, "FF0000"]], "branch commit with null character: \x00", "test", "1970-01-01", ["unstable", false], [], []], ["1d22e65f027e", [0, 1], [[0, 0, 1, 3, ""]], "branch", "test", "1970-01-01", ["stable", true], [], []], ["a4f92ed23982", [0, 1], [[0, 0, 1, 3, ""]], "Added tag 1.0 for changeset 2ef0ac749a14", "test", "1970-01-01", ["default", true], [], []], ["2ef0ac749a14", [0, 1], [], "base", "test", "1970-01-01", ["default", false], ["1.0"], ["anotherthing"]]]; (esc)
 
 capabilities
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-hgweb-descend-empties.t
--- a/tests/test-hgweb-descend-empties.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-hgweb-descend-empties.t	Tue Oct 01 10:44:59 2013 -0700
@@ -76,8 +76,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <table class="bigtable">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-hgweb-diffs.t
--- a/tests/test-hgweb-diffs.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-hgweb-diffs.t	Tue Oct 01 10:44:59 2013 -0700
@@ -84,8 +84,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">a</div>
@@ -246,8 +246,8 @@
   <form class="search" action="/log">
   <p></p>
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">b</div>
@@ -269,7 +269,6 @@
    <th>children</th>
    <td></td>
   </tr>
-  
   </table>
   
   <div class="overflow">
@@ -349,8 +348,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">a</div>
@@ -515,8 +514,8 @@
   <form class="search" action="/log">
   <p></p>
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">b</div>
@@ -538,7 +537,6 @@
    <th>children</th>
    <td></td>
   </tr>
-  
   </table>
   
   <div class="overflow">
@@ -615,8 +613,8 @@
   <form class="search" action="/log">
   <p></p>
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">a</div>
@@ -638,7 +636,6 @@
    <th>children</th>
    <td></td>
   </tr>
-  
   </table>
   
   <div class="overflow">
@@ -737,8 +734,8 @@
   <form class="search" action="/log">
   <p></p>
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">c</div>
@@ -760,7 +757,6 @@
    <th>children</th>
    <td></td>
   </tr>
-  
   </table>
   
   <div class="overflow">
@@ -861,8 +857,8 @@
   <form class="search" action="/log">
   <p></p>
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">d</div>
@@ -884,7 +880,6 @@
    <th>children</th>
    <td></td>
   </tr>
-  
   </table>
   
   <div class="overflow">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-hgweb-empty.t
--- a/tests/test-hgweb-empty.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-hgweb-empty.t	Tue Oct 01 10:44:59 2013 -0700
@@ -63,8 +63,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" value="" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="navigate">
@@ -90,6 +90,21 @@
   | rev -1: 
   </div>
   
+  <script type="text/javascript">
+      ajaxScrollInit(
+              '/shortlog/%next%',
+              '', <!-- NEXTHASH
+              function (htmlText, previousVal) {
+                  var m = htmlText.match(/'(\w+)', <!-- NEXTHASH/);
+                  return m ? m[1] : null;
+              },
+              '.bigtable > tbody:nth-of-type(2)',
+              '<tr class="%class%">\
+              <td colspan="3" style="text-align: center;">%text%</td>\
+              </tr>'
+      );
+  </script>
+  
   </div>
   </div>
   
@@ -158,8 +173,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" value="" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="navigate">
@@ -185,6 +200,21 @@
   | rev -1: 
   </div>
   
+  <script type="text/javascript">
+      ajaxScrollInit(
+              '/shortlog/%next%',
+              '', <!-- NEXTHASH
+              function (htmlText, previousVal) {
+                  var m = htmlText.match(/'(\w+)', <!-- NEXTHASH/);
+                  return m ? m[1] : null;
+              },
+              '.bigtable > tbody:nth-of-type(2)',
+              '<tr class="%class%">\
+              <td colspan="3" style="text-align: center;">%text%</td>\
+              </tr>'
+      );
+  </script>
+  
   </div>
   </div>
   
@@ -249,8 +279,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="navigate">
@@ -329,6 +359,17 @@
   | rev -1: 
   </div>
   
+  <script type="text/javascript">
+      ajaxScrollInit(
+              '/graph/-1?revcount=%next%',
+              60+60,
+              function (htmlText, previousVal) { return previousVal + 60; },
+              '#wrapper',
+              '<div class="%class%" style="text-align: center;">%text%</div>',
+              'graph'
+      );
+  </script>
+  
   </div>
   </div>
   
@@ -385,8 +426,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <table class="bigtable">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-hgweb-filelog.t
--- a/tests/test-hgweb-filelog.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-hgweb-filelog.t	Tue Oct 01 10:44:59 2013 -0700
@@ -170,8 +170,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="navigate">
@@ -279,8 +279,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="navigate">
@@ -388,8 +388,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="navigate">
@@ -492,8 +492,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="navigate">
@@ -576,8 +576,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30"></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-hgweb-removed.t
--- a/tests/test-hgweb-removed.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-hgweb-removed.t	Tue Oct 01 10:44:59 2013 -0700
@@ -65,8 +65,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">del</div>
@@ -190,8 +190,8 @@
   <form class="search" action="/log">
   <p></p>
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">del</div>
@@ -213,7 +213,6 @@
    <th>children</th>
    <td></td>
   </tr>
-  
   </table>
   
   <div class="overflow">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-hgweb.t
--- a/tests/test-hgweb.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-hgweb.t	Tue Oct 01 10:44:59 2013 -0700
@@ -81,8 +81,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30"></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">
@@ -171,8 +171,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30"></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">
@@ -249,8 +249,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <table class="bigtable">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-highlight.t
--- a/tests/test-highlight.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-highlight.t	Tue Oct 01 10:44:59 2013 -0700
@@ -109,8 +109,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">a</div>
@@ -132,7 +132,6 @@
    <th class="author">children</th>
    <td class="author"></td>
   </tr>
-  
   </table>
   
   <div class="overflow">
@@ -241,8 +240,8 @@
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" /></p>
-  <div id="hint">find changesets by author, revision,
-  files, or words in the commit message</div>
+  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
+  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">a</div>
@@ -264,7 +263,6 @@
    <th class="author">children</th>
    <td class="author"></td>
   </tr>
-  
   </table>
   
   <div class="overflow">
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-import-merge.t
--- a/tests/test-import-merge.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-import-merge.t	Tue Oct 01 10:44:59 2013 -0700
@@ -129,7 +129,9 @@
   $ echo a>>a
   $ hg ci -m3
   $ hg export 2 | head -7 > ../a.patch
-  $ hg export tip | tail -n +8 >> ../a.patch
+  $ hg export tip > out
+  >>> apatch = open("../a.patch", "a")
+  >>> apatch.write("".join(open("out").readlines()[7:]))
 
   $ cd ..
   $ hg clone -qr0 repo3 repo3-clone
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-issue1502.t
--- a/tests/test-issue1502.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-issue1502.t	Tue Oct 01 10:44:59 2013 -0700
@@ -19,7 +19,8 @@
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
-  not updating: crosses branches (merge branches or update --check to force update)
+  not updating: not a linear update
+  (merge or update --check to force update)
 
   $ hg -R foo1 book branchy
   $ hg -R foo1 book
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-largefiles.t
--- a/tests/test-largefiles.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-largefiles.t	Tue Oct 01 10:44:59 2013 -0700
@@ -1104,7 +1104,7 @@
 
 "update --check" refuses to update with uncommitted changes.
   $ hg update --check 8
-  abort: uncommitted local changes
+  abort: uncommitted changes
   [255]
 
 "update --clean" leaves correct largefiles in working copy, even when there is
@@ -2191,3 +2191,64 @@
   
 
   $ cd ..
+
+Check whether "largefiles" feature is supported only in repositories
+enabling largefiles extension.
+
+  $ mkdir individualenabling
+  $ cd individualenabling
+
+  $ hg init enabledlocally
+  $ echo large > enabledlocally/large
+  $ hg -R enabledlocally add --large enabledlocally/large
+  $ hg -R enabledlocally commit -m '#0'
+  Invoking status precommit hook
+  A large
+
+  $ hg init notenabledlocally
+  $ echo large > notenabledlocally/large
+  $ hg -R notenabledlocally add --large notenabledlocally/large
+  $ hg -R notenabledlocally commit -m '#0'
+  Invoking status precommit hook
+  A large
+
+  $ cat >> $HGRCPATH <<EOF
+  > [extensions]
+  > # disable globally
+  > largefiles=!
+  > EOF
+  $ cat >> enabledlocally/.hg/hgrc <<EOF
+  > [extensions]
+  > # enable locally
+  > largefiles=
+  > EOF
+  $ hg -R enabledlocally root
+  $TESTTMP/individualenabling/enabledlocally
+  $ hg -R notenabledlocally root
+  abort: unknown repository format: requires features 'largefiles' (upgrade Mercurial)!
+  [255]
+
+  $ hg init push-dst
+  $ hg -R enabledlocally push push-dst
+  pushing to push-dst
+  abort: required features are not supported in the destination: largefiles
+  [255]
+
+  $ hg init pull-src
+  $ hg -R pull-src pull enabledlocally
+  pulling from enabledlocally
+  abort: required features are not supported in the destination: largefiles
+  [255]
+
+  $ hg clone enabledlocally clone-dst
+  abort: unknown repository format: requires features 'largefiles' (upgrade Mercurial)!
+  [255]
+  $ test -d clone-dst
+  [1]
+  $ hg clone --pull enabledlocally clone-pull-dst
+  abort: required features are not supported in the destination: largefiles
+  [255]
+  $ test -d clone-pull-dst
+  [1]
+
+  $ cd ..
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-lrucachedict.py
--- a/tests/test-lrucachedict.py	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-lrucachedict.py	Tue Oct 01 10:44:59 2013 -0700
@@ -31,5 +31,8 @@
     d['f'] = 'vf'
     printifpresent(d, ['b', 'c', 'd', 'e', 'f'])
 
+    d.clear()
+    printifpresent(d, ['b', 'c', 'd', 'e', 'f'])
+
 if __name__ == '__main__':
     test_lrucachedict()
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-lrucachedict.py.out
--- a/tests/test-lrucachedict.py.out	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-lrucachedict.py.out	Tue Oct 01 10:44:59 2013 -0700
@@ -24,3 +24,8 @@
 'e' in d: False
 'f' in d: True
 d['f']: vf
+'b' in d: False
+'c' in d: False
+'d' in d: False
+'e' in d: False
+'f' in d: False
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-merge-force.t
--- a/tests/test-merge-force.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-merge-force.t	Tue Oct 01 10:44:59 2013 -0700
@@ -19,7 +19,7 @@
 Should fail, since there are deleted files:
 
   $ hg merge
-  abort: outstanding uncommitted changes
+  abort: uncommitted changes
   (use 'hg status' to list changes)
   [255]
 
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-merge-subrepos.t
--- a/tests/test-merge-subrepos.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-merge-subrepos.t	Tue Oct 01 10:44:59 2013 -0700
@@ -21,5 +21,5 @@
 Should fail, since there are added files to subrepo:
 
   $ hg merge
-  abort: outstanding uncommitted changes in subrepository 'subrepo'
+  abort: uncommitted changes in subrepository 'subrepo'
   [255]
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-merge1.t
--- a/tests/test-merge1.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-merge1.t	Tue Oct 01 10:44:59 2013 -0700
@@ -140,7 +140,7 @@
   $ echo This is file b22 > b
 merge fails
   $ hg merge 2
-  abort: outstanding uncommitted changes
+  abort: uncommitted changes
   (use 'hg status' to list changes)
   [255]
 merge expected!
@@ -177,7 +177,7 @@
   $ echo This is file b33 > b
 merge of b should fail
   $ hg merge 2
-  abort: outstanding uncommitted changes
+  abort: uncommitted changes
   (use 'hg status' to list changes)
   [255]
 merge of b expected
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-merge5.t
--- a/tests/test-merge5.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-merge5.t	Tue Oct 01 10:44:59 2013 -0700
@@ -14,11 +14,12 @@
   $ hg update 1
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg update
-  abort: crosses branches (merge branches or update --check to force update)
+  abort: not a linear update
+  (merge or update --check to force update)
   [255]
   $ rm b
   $ hg update -c
-  abort: uncommitted local changes
+  abort: uncommitted changes
   [255]
   $ hg revert b
   $ hg update -c
@@ -32,7 +33,8 @@
 Should abort:
 
   $ hg update -y 1
-  abort: crosses branches (merge branches or use --clean to discard changes)
+  abort: uncommitted changes
+  (commit or update --clean to discard changes)
   [255]
   $ mv c a
 
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-mq-strip.t
--- a/tests/test-mq-strip.t	Tue Oct 01 00:12:34 2013 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,503 +0,0 @@
-  $ echo "[extensions]" >> $HGRCPATH
-  $ echo "mq=" >> $HGRCPATH
-  $ echo "graphlog=" >> $HGRCPATH
-
-  $ restore() {
-  >     hg unbundle -q .hg/strip-backup/*
-  >     rm .hg/strip-backup/*
-  > }
-  $ teststrip() {
-  >     hg up -C $1
-  >     echo % before update $1, strip $2
-  >     hg parents
-  >     hg --traceback strip $2
-  >     echo % after update $1, strip $2
-  >     hg parents
-  >     restore
-  > }
-
-  $ hg init test
-  $ cd test
-
-  $ echo foo > bar
-  $ hg ci -Ama
-  adding bar
-
-  $ echo more >> bar
-  $ hg ci -Amb
-
-  $ echo blah >> bar
-  $ hg ci -Amc
-
-  $ hg up 1
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  $ echo blah >> bar
-  $ hg ci -Amd
-  created new head
-
-  $ echo final >> bar
-  $ hg ci -Ame
-
-  $ hg log
-  changeset:   4:443431ffac4f
-  tag:         tip
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     e
-  
-  changeset:   3:65bd5f99a4a3
-  parent:      1:ef3a871183d7
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     d
-  
-  changeset:   2:264128213d29
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     c
-  
-  changeset:   1:ef3a871183d7
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     b
-  
-  changeset:   0:9ab35a2d17cb
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     a
-  
-
-  $ teststrip 4 4
-  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  % before update 4, strip 4
-  changeset:   4:443431ffac4f
-  tag:         tip
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     e
-  
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-  % after update 4, strip 4
-  changeset:   3:65bd5f99a4a3
-  tag:         tip
-  parent:      1:ef3a871183d7
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     d
-  
-  $ teststrip 4 3
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  % before update 4, strip 3
-  changeset:   4:443431ffac4f
-  tag:         tip
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     e
-  
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-  % after update 4, strip 3
-  changeset:   1:ef3a871183d7
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     b
-  
-  $ teststrip 1 4
-  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  % before update 1, strip 4
-  changeset:   1:ef3a871183d7
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     b
-  
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-  % after update 1, strip 4
-  changeset:   1:ef3a871183d7
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     b
-  
-  $ teststrip 4 2
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  % before update 4, strip 2
-  changeset:   4:443431ffac4f
-  tag:         tip
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     e
-  
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-  % after update 4, strip 2
-  changeset:   3:443431ffac4f
-  tag:         tip
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     e
-  
-  $ teststrip 4 1
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  % before update 4, strip 1
-  changeset:   4:264128213d29
-  tag:         tip
-  parent:      1:ef3a871183d7
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     c
-  
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-  % after update 4, strip 1
-  changeset:   0:9ab35a2d17cb
-  tag:         tip
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     a
-  
-  $ teststrip null 4
-  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
-  % before update null, strip 4
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-  % after update null, strip 4
-
-  $ hg log
-  changeset:   4:264128213d29
-  tag:         tip
-  parent:      1:ef3a871183d7
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     c
-  
-  changeset:   3:443431ffac4f
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     e
-  
-  changeset:   2:65bd5f99a4a3
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     d
-  
-  changeset:   1:ef3a871183d7
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     b
-  
-  changeset:   0:9ab35a2d17cb
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     a
-  
-
-  $ hg up -C 2
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  $ hg merge 4
-  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  (branch merge, don't forget to commit)
-
-before strip of merge parent
-
-  $ hg parents
-  changeset:   2:65bd5f99a4a3
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     d
-  
-  changeset:   4:264128213d29
-  tag:         tip
-  parent:      1:ef3a871183d7
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     c
-  
-  $ hg strip 4
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-
-after strip of merge parent
-
-  $ hg parents
-  changeset:   1:ef3a871183d7
-  user:        test
-  date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     b
-  
-  $ restore
-
-  $ hg up
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  $ hg glog
-  @  changeset:   4:264128213d29
-  |  tag:         tip
-  |  parent:      1:ef3a871183d7
-  |  user:        test
-  |  date:        Thu Jan 01 00:00:00 1970 +0000
-  |  summary:     c
-  |
-  | o  changeset:   3:443431ffac4f
-  | |  user:        test
-  | |  date:        Thu Jan 01 00:00:00 1970 +0000
-  | |  summary:     e
-  | |
-  | o  changeset:   2:65bd5f99a4a3
-  |/   user:        test
-  |    date:        Thu Jan 01 00:00:00 1970 +0000
-  |    summary:     d
-  |
-  o  changeset:   1:ef3a871183d7
-  |  user:        test
-  |  date:        Thu Jan 01 00:00:00 1970 +0000
-  |  summary:     b
-  |
-  o  changeset:   0:9ab35a2d17cb
-     user:        test
-     date:        Thu Jan 01 00:00:00 1970 +0000
-     summary:     a
-  
-
-2 is parent of 3, only one strip should happen
-
-  $ hg strip "roots(2)" 3
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-  $ hg glog
-  @  changeset:   2:264128213d29
-  |  tag:         tip
-  |  user:        test
-  |  date:        Thu Jan 01 00:00:00 1970 +0000
-  |  summary:     c
-  |
-  o  changeset:   1:ef3a871183d7
-  |  user:        test
-  |  date:        Thu Jan 01 00:00:00 1970 +0000
-  |  summary:     b
-  |
-  o  changeset:   0:9ab35a2d17cb
-     user:        test
-     date:        Thu Jan 01 00:00:00 1970 +0000
-     summary:     a
-  
-  $ restore
-  $ hg glog
-  o  changeset:   4:443431ffac4f
-  |  tag:         tip
-  |  user:        test
-  |  date:        Thu Jan 01 00:00:00 1970 +0000
-  |  summary:     e
-  |
-  o  changeset:   3:65bd5f99a4a3
-  |  parent:      1:ef3a871183d7
-  |  user:        test
-  |  date:        Thu Jan 01 00:00:00 1970 +0000
-  |  summary:     d
-  |
-  | @  changeset:   2:264128213d29
-  |/   user:        test
-  |    date:        Thu Jan 01 00:00:00 1970 +0000
-  |    summary:     c
-  |
-  o  changeset:   1:ef3a871183d7
-  |  user:        test
-  |  date:        Thu Jan 01 00:00:00 1970 +0000
-  |  summary:     b
-  |
-  o  changeset:   0:9ab35a2d17cb
-     user:        test
-     date:        Thu Jan 01 00:00:00 1970 +0000
-     summary:     a
-  
-
-2 different branches: 2 strips
-
-  $ hg strip 2 4
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-  $ hg glog
-  o  changeset:   2:65bd5f99a4a3
-  |  tag:         tip
-  |  user:        test
-  |  date:        Thu Jan 01 00:00:00 1970 +0000
-  |  summary:     d
-  |
-  @  changeset:   1:ef3a871183d7
-  |  user:        test
-  |  date:        Thu Jan 01 00:00:00 1970 +0000
-  |  summary:     b
-  |
-  o  changeset:   0:9ab35a2d17cb
-     user:        test
-     date:        Thu Jan 01 00:00:00 1970 +0000
-     summary:     a
-  
-  $ restore
-
-2 different branches and a common ancestor: 1 strip
-
-  $ hg strip 1 "2|4"
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-  $ restore
-
-stripping an empty revset
-
-  $ hg strip "1 and not 1"
-  abort: empty revision set
-  [255]
-
-remove branchy history for qimport tests
-
-  $ hg strip 3
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-
-
-strip of applied mq should cleanup status file
-
-  $ hg up -C 3
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  $ echo fooagain >> bar
-  $ hg ci -mf
-  $ hg qimport -r tip:2
-
-applied patches before strip
-
-  $ hg qapplied
-  2.diff
-  3.diff
-  4.diff
-
-stripping revision in queue
-
-  $ hg strip 3
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-
-applied patches after stripping rev in queue
-
-  $ hg qapplied
-  2.diff
-
-stripping ancestor of queue
-
-  $ hg strip 1
-  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-
-applied patches after stripping ancestor of queue
-
-  $ hg qapplied
-
-Verify strip protects against stripping wc parent when there are uncommited mods
-
-  $ echo b > b
-  $ hg add b
-  $ hg ci -m 'b'
-  $ hg log --graph
-  @  changeset:   1:7519abd79d14
-  |  tag:         tip
-  |  user:        test
-  |  date:        Thu Jan 01 00:00:00 1970 +0000
-  |  summary:     b
-  |
-  o  changeset:   0:9ab35a2d17cb
-     user:        test
-     date:        Thu Jan 01 00:00:00 1970 +0000
-     summary:     a
-  
-
-  $ echo c > b
-  $ echo c > bar
-  $ hg strip tip
-  abort: local changes found
-  [255]
-  $ hg strip tip --keep
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-  $ hg log --graph
-  @  changeset:   0:9ab35a2d17cb
-     tag:         tip
-     user:        test
-     date:        Thu Jan 01 00:00:00 1970 +0000
-     summary:     a
-  
-  $ hg status
-  M bar
-  ? b
-
-Strip adds, removes, modifies with --keep
-
-  $ touch b
-  $ hg add b
-  $ hg commit -mb
-  $ touch c
-
-... with a clean working dir
-
-  $ hg add c
-  $ hg rm bar
-  $ hg commit -mc
-  $ hg status
-  $ hg strip --keep tip
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-  $ hg status
-  ! bar
-  ? c
-
-... with a dirty working dir
-
-  $ hg add c
-  $ hg rm bar
-  $ hg commit -mc
-  $ hg status
-  $ echo b > b
-  $ echo d > d
-  $ hg strip --keep tip
-  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
-  $ hg status
-  M b
-  ! bar
-  ? c
-  ? d
-  $ cd ..
-
-stripping many nodes on a complex graph (issue3299)
-
-  $ hg init issue3299
-  $ cd issue3299
-  $ hg debugbuilddag '@a.:a@b.:b.:x<a@a.:a<b@b.:b<a@a.:a'
-  $ hg strip 'not ancestors(x)'
-  saved backup bundle to $TESTTMP/issue3299/.hg/strip-backup/*-backup.hg (glob)
-
-test hg strip -B bookmark
-
-  $ cd ..
-  $ hg init bookmarks
-  $ cd bookmarks
-  $ hg debugbuilddag '..<2.*1/2:m<2+3:c<m+3:a<2.:b'
-  $ hg bookmark -r 'a' 'todelete'
-  $ hg bookmark -r 'b' 'B'
-  $ hg bookmark -r 'b' 'nostrip'
-  $ hg bookmark -r 'c' 'delete'
-  $ hg up -C todelete
-  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  $ hg strip -B nostrip
-  bookmark 'nostrip' deleted
-  abort: empty revision set
-  [255]
-  $ hg strip -B todelete
-  bookmark 'todelete' deleted
-  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  saved backup bundle to $TESTTMP/bookmarks/.hg/strip-backup/*-backup.hg (glob)
-  $ hg id -ir dcbb326fdec2
-  abort: unknown revision 'dcbb326fdec2'!
-  [255]
-  $ hg id -ir d62d843c9a01
-  d62d843c9a01
-  $ hg bookmarks
-     B                         9:ff43616e5d0f
-     delete                    6:2702dd0c91e7
-  $ hg strip -B delete
-  bookmark 'delete' deleted
-  saved backup bundle to $TESTTMP/bookmarks/.hg/strip-backup/*-backup.hg (glob)
-  $ hg id -ir 6:2702dd0c91e7
-  abort: unknown revision '2702dd0c91e7'!
-  [255]
-
-  $ cd ..
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-mq-subrepo.t
--- a/tests/test-mq-subrepo.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-mq-subrepo.t	Tue Oct 01 10:44:59 2013 -0700
@@ -213,6 +213,7 @@
 
 
 handle subrepos safely on qpush/qpop
+(and we cannot qpop / qpush with a modified subrepo)
 
   $ mkrepo repo-2499-qpush
   $ mksubrepo sub
@@ -220,31 +221,58 @@
   $ hg -R sub ci -m0sub
   $ echo sub = sub > .hgsub
   $ hg add .hgsub
-  $ hg qnew -m0 0.diff
+  $ hg commit -m0
   $ hg debugsub
   path sub
    source   sub
    revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
+  $ echo foo > ./sub/a
+  $ hg -R sub commit -m foo
+  $ hg commit -m1
+  $ hg qimport -r "0:tip"
+  $ hg -R sub id --id
+  aa037b301eba
 
 qpop
+  $ hg -R sub update 0000
+  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg qpop
-  popping 0.diff
-  patch queue now empty
-  $ hg status -AS
-  $ hg debugsub
-
-qpush
-  $ hg qpush
-  applying 0.diff
+  abort: local changed subrepos found, refresh first
+  [255]
+  $ hg revert sub
+  reverting subrepo sub
+  adding sub/a
+  $ hg qpop
+  popping 1.diff
   now at: 0.diff
   $ hg status -AS
   C .hgsub
   C .hgsubstate
   C sub/a
-  $ hg debugsub
-  path sub
-   source   sub
-   revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
+  $ hg -R sub id --id
+  b2fdb12cd82b
+
+qpush
+  $ hg -R sub update 0000
+  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ hg qpush
+  abort: local changed subrepos found, refresh first
+  [255]
+  $ hg revert sub
+  reverting subrepo sub
+  adding sub/a
+  $ hg qpush
+  applying 1.diff
+   subrepository sub diverged (local revision: b2fdb12cd82b, remote revision: aa037b301eba)
+  (M)erge, keep (l)ocal or keep (r)emote? m
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  now at: 1.diff
+  $ hg status -AS
+  C .hgsub
+  C .hgsubstate
+  C sub/a
+  $ hg -R sub id --id
+  aa037b301eba
 
   $ cd ..
 
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-mq.t
--- a/tests/test-mq.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-mq.t	Tue Oct 01 10:44:59 2013 -0700
@@ -67,6 +67,9 @@
   changes will be tolerated and preserved. If incompatible options such as
   -f/--force or --exact are passed, this setting is ignored.
   
+  This extension used to provide a strip command. This command now lives in the
+  strip extension.
+  
   list of commands:
   
    qapplied      print the patches already applied
@@ -91,7 +94,6 @@
    qseries       print the entire series file
    qtop          print the name of the current patch
    qunapplied    print the patches not yet applied
-   strip         strip changesets and all their descendants from the repository
   
   use "hg -v help mq" to show builtin aliases and global options
 
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-parse-date.t
--- a/tests/test-parse-date.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-parse-date.t	Tue Oct 01 10:44:59 2013 -0700
@@ -242,7 +242,7 @@
   >>> yesterday = (datetime.date.today() - datetime.timedelta(days=1)).strftime("%b %d")
   >>> dates = open('dates', 'w')
   >>> dates.write(today + '\n')
-  >>> dates.write(yesterday)
+  >>> dates.write(yesterday + '\n')
   >>> dates.close()
   $ hg ci -d "`sed -n '1p' dates`" -m "today is a good day to code"
   $ hg log -d today --template '{desc}\n'
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-progress.t
--- a/tests/test-progress.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-progress.t	Tue Oct 01 10:44:59 2013 -0700
@@ -1,6 +1,14 @@
 
   $ cat > loop.py <<EOF
   > from mercurial import commands
+  > import time
+  > class incrementingtime(object):
+  >     def __init__(self):
+  >         self._time = 0.0
+  >     def __call__(self):
+  >         self._time += 0.25
+  >         return self._time
+  > time.time = incrementingtime()
   > 
   > def loop(ui, loops, **opts):
   >     loops = int(loops)
@@ -19,9 +27,14 @@
   >         if opts.get('parallel'):
   >             ui.progress('other', i, 'other.%d' % i, 'othernum', total)
   >         if nested:
-  >             for j in range(2):
-  >                 ui.progress('nested', j, 'nested.%d' % j, 'nestnum', 2)
-  >             ui.progress('nested', None, 'nested.done', 'nestnum', 2)
+  >             nested_steps = 2
+  >             if i and i % 4 == 0:
+  >                 nested_steps = 5
+  >             for j in range(nested_steps):
+  >                 ui.progress(
+  >                   'nested', j, 'nested.%d' % j, 'nestnum', nested_steps)
+  >             ui.progress(
+  >               'nested', None, 'nested.done', 'nestnum', nested_steps)
   >     ui.progress('loop', None, 'loop.done', 'loopnum', total)
   > 
   > commands.norepo += " loop"
@@ -69,6 +82,24 @@
   loop [===============================>                ] 2/3\r (no-eol) (esc)
                                                               \r (no-eol) (esc)
 
+Test nested long-lived topic which has the same name as a short-lived
+peer. We shouldn't get stuck showing the short-lived inner steps, and
+should go back to skipping the inner steps when the slow nested step
+finishes.
+
+  $ hg -y loop 7 --nested
+  \r (no-eol) (esc)
+  loop [                                                ] 0/7\r (no-eol) (esc)
+  loop [=====>                                          ] 1/7\r (no-eol) (esc)
+  loop [============>                                   ] 2/7\r (no-eol) (esc)
+  loop [===================>                            ] 3/7\r (no-eol) (esc)
+  loop [==========================>                     ] 4/7\r (no-eol) (esc)
+  nested [==========================>                   ] 3/5\r (no-eol) (esc)
+  nested [===================================>          ] 4/5\r (no-eol) (esc)
+  loop [=================================>              ] 5/7\r (no-eol) (esc)
+  loop [========================================>       ] 6/7\r (no-eol) (esc)
+                                                              \r (no-eol) (esc)
+
 
   $ hg --config progress.changedelay=0 -y loop 3 --nested
   \r (no-eol) (esc)
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-pull-update.t
--- a/tests/test-pull-update.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-pull-update.t	Tue Oct 01 10:44:59 2013 -0700
@@ -25,7 +25,8 @@
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
-  not updating: crosses branches (merge branches or update --check to force update)
+  not updating: not a linear update
+  (merge or update --check to force update)
 
   $ cd ../tt
 
@@ -38,7 +39,8 @@
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
-  not updating: crosses branches (merge branches or update --check to force update)
+  not updating: not a linear update
+  (merge or update --check to force update)
 
   $ HGMERGE=true hg merge
   merging foo
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-push-warn.t
--- a/tests/test-push-warn.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-push-warn.t	Tue Oct 01 10:44:59 2013 -0700
@@ -354,6 +354,29 @@
   adding file changes
   added 1 changesets with 1 changes to 1 files
 
+Pushing muliple headed new branch:
+
+  $ echo 14 > foo
+  $ hg -q branch f
+  $ hg -q ci -m 14
+  $ echo 15 > foo
+  $ hg -q ci -m 15
+  $ hg -q up 14
+  $ echo 16 > foo
+  $ hg -q ci -m 16
+  $ hg push --branch f --new-branch ../f
+  pushing to ../f
+  searching for changes
+  abort: push creates multiple headed new branch 'f'
+  (merge or see "hg help push" for detail about pushing new heads)
+  [255]
+  $ hg push --branch f --new-branch --force ../f
+  pushing to ../f
+  searching for changes
+  adding changesets
+  adding manifests
+  adding file changes
+  added 3 changesets with 3 changes to 1 files (+1 heads)
 
 Checking prepush logic does not allow silently pushing
 multiple new heads:
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-requires.t
--- a/tests/test-requires.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-requires.t	Tue Oct 01 10:44:59 2013 -0700
@@ -15,5 +15,55 @@
   $ hg tip
   abort: unknown repository format: requires features 'indoor-pool', 'outdoor-pool' (upgrade Mercurial)!
   [255]
+  $ cd ..
+
+Test checking between features supported locally and ones required in
+another repository of push/pull/clone on localhost:
+
+  $ mkdir supported-locally
+  $ cd supported-locally
+
+  $ hg init supported
+  $ echo a > supported/a
+  $ hg -R supported commit -Am '#0 at supported'
+  adding a
+
+  $ echo 'featuresetup-test' >> supported/.hg/requires
+  $ cat > $TESTTMP/supported-locally/supportlocally.py <<EOF
+  > from mercurial import localrepo, extensions
+  > def featuresetup(ui, supported):
+  >     for name, module in extensions.extensions(ui):
+  >         if __name__ == module.__name__:
+  >             # support specific feature locally
+  >             supported |= set(['featuresetup-test'])
+  >             return
+  > def uisetup(ui):
+  >     localrepo.localrepository.featuresetupfuncs.add(featuresetup)
+  > EOF
+  $ cat > supported/.hg/hgrc <<EOF
+  > [extensions]
+  > # enable extension locally
+  > supportlocally = $TESTTMP/supported-locally/supportlocally.py
+  > EOF
+  $ hg -R supported status
+
+  $ hg init push-dst
+  $ hg -R supported push push-dst
+  pushing to push-dst
+  abort: required features are not supported in the destination: featuresetup-test
+  [255]
+
+  $ hg init pull-src
+  $ hg -R pull-src pull supported
+  pulling from supported
+  abort: required features are not supported in the destination: featuresetup-test
+  [255]
+
+  $ hg clone supported clone-dst
+  abort: unknown repository format: requires features 'featuresetup-test' (upgrade Mercurial)!
+  [255]
+  $ hg clone --pull supported clone-dst
+  abort: required features are not supported in the destination: featuresetup-test
+  [255]
 
   $ cd ..
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-strip.t
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-strip.t	Tue Oct 01 10:44:59 2013 -0700
@@ -0,0 +1,504 @@
+  $ echo "[extensions]" >> $HGRCPATH
+  $ echo "strip=" >> $HGRCPATH
+  $ echo "graphlog=" >> $HGRCPATH
+
+  $ restore() {
+  >     hg unbundle -q .hg/strip-backup/*
+  >     rm .hg/strip-backup/*
+  > }
+  $ teststrip() {
+  >     hg up -C $1
+  >     echo % before update $1, strip $2
+  >     hg parents
+  >     hg --traceback strip $2
+  >     echo % after update $1, strip $2
+  >     hg parents
+  >     restore
+  > }
+
+  $ hg init test
+  $ cd test
+
+  $ echo foo > bar
+  $ hg ci -Ama
+  adding bar
+
+  $ echo more >> bar
+  $ hg ci -Amb
+
+  $ echo blah >> bar
+  $ hg ci -Amc
+
+  $ hg up 1
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ echo blah >> bar
+  $ hg ci -Amd
+  created new head
+
+  $ echo final >> bar
+  $ hg ci -Ame
+
+  $ hg log
+  changeset:   4:443431ffac4f
+  tag:         tip
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     e
+  
+  changeset:   3:65bd5f99a4a3
+  parent:      1:ef3a871183d7
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     d
+  
+  changeset:   2:264128213d29
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     c
+  
+  changeset:   1:ef3a871183d7
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     b
+  
+  changeset:   0:9ab35a2d17cb
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     a
+  
+
+  $ teststrip 4 4
+  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  % before update 4, strip 4
+  changeset:   4:443431ffac4f
+  tag:         tip
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     e
+  
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+  % after update 4, strip 4
+  changeset:   3:65bd5f99a4a3
+  tag:         tip
+  parent:      1:ef3a871183d7
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     d
+  
+  $ teststrip 4 3
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  % before update 4, strip 3
+  changeset:   4:443431ffac4f
+  tag:         tip
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     e
+  
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+  % after update 4, strip 3
+  changeset:   1:ef3a871183d7
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     b
+  
+  $ teststrip 1 4
+  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  % before update 1, strip 4
+  changeset:   1:ef3a871183d7
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     b
+  
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+  % after update 1, strip 4
+  changeset:   1:ef3a871183d7
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     b
+  
+  $ teststrip 4 2
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  % before update 4, strip 2
+  changeset:   4:443431ffac4f
+  tag:         tip
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     e
+  
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+  % after update 4, strip 2
+  changeset:   3:443431ffac4f
+  tag:         tip
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     e
+  
+  $ teststrip 4 1
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  % before update 4, strip 1
+  changeset:   4:264128213d29
+  tag:         tip
+  parent:      1:ef3a871183d7
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     c
+  
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+  % after update 4, strip 1
+  changeset:   0:9ab35a2d17cb
+  tag:         tip
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     a
+  
+  $ teststrip null 4
+  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  % before update null, strip 4
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+  % after update null, strip 4
+
+  $ hg log
+  changeset:   4:264128213d29
+  tag:         tip
+  parent:      1:ef3a871183d7
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     c
+  
+  changeset:   3:443431ffac4f
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     e
+  
+  changeset:   2:65bd5f99a4a3
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     d
+  
+  changeset:   1:ef3a871183d7
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     b
+  
+  changeset:   0:9ab35a2d17cb
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     a
+  
+
+  $ hg up -C 2
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ hg merge 4
+  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  (branch merge, don't forget to commit)
+
+before strip of merge parent
+
+  $ hg parents
+  changeset:   2:65bd5f99a4a3
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     d
+  
+  changeset:   4:264128213d29
+  tag:         tip
+  parent:      1:ef3a871183d7
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     c
+  
+  $ hg strip 4
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+
+after strip of merge parent
+
+  $ hg parents
+  changeset:   1:ef3a871183d7
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     b
+  
+  $ restore
+
+  $ hg up
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ hg glog
+  @  changeset:   4:264128213d29
+  |  tag:         tip
+  |  parent:      1:ef3a871183d7
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     c
+  |
+  | o  changeset:   3:443431ffac4f
+  | |  user:        test
+  | |  date:        Thu Jan 01 00:00:00 1970 +0000
+  | |  summary:     e
+  | |
+  | o  changeset:   2:65bd5f99a4a3
+  |/   user:        test
+  |    date:        Thu Jan 01 00:00:00 1970 +0000
+  |    summary:     d
+  |
+  o  changeset:   1:ef3a871183d7
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     b
+  |
+  o  changeset:   0:9ab35a2d17cb
+     user:        test
+     date:        Thu Jan 01 00:00:00 1970 +0000
+     summary:     a
+  
+
+2 is parent of 3, only one strip should happen
+
+  $ hg strip "roots(2)" 3
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+  $ hg glog
+  @  changeset:   2:264128213d29
+  |  tag:         tip
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     c
+  |
+  o  changeset:   1:ef3a871183d7
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     b
+  |
+  o  changeset:   0:9ab35a2d17cb
+     user:        test
+     date:        Thu Jan 01 00:00:00 1970 +0000
+     summary:     a
+  
+  $ restore
+  $ hg glog
+  o  changeset:   4:443431ffac4f
+  |  tag:         tip
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     e
+  |
+  o  changeset:   3:65bd5f99a4a3
+  |  parent:      1:ef3a871183d7
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     d
+  |
+  | @  changeset:   2:264128213d29
+  |/   user:        test
+  |    date:        Thu Jan 01 00:00:00 1970 +0000
+  |    summary:     c
+  |
+  o  changeset:   1:ef3a871183d7
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     b
+  |
+  o  changeset:   0:9ab35a2d17cb
+     user:        test
+     date:        Thu Jan 01 00:00:00 1970 +0000
+     summary:     a
+  
+
+2 different branches: 2 strips
+
+  $ hg strip 2 4
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+  $ hg glog
+  o  changeset:   2:65bd5f99a4a3
+  |  tag:         tip
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     d
+  |
+  @  changeset:   1:ef3a871183d7
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     b
+  |
+  o  changeset:   0:9ab35a2d17cb
+     user:        test
+     date:        Thu Jan 01 00:00:00 1970 +0000
+     summary:     a
+  
+  $ restore
+
+2 different branches and a common ancestor: 1 strip
+
+  $ hg strip 1 "2|4"
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+  $ restore
+
+stripping an empty revset
+
+  $ hg strip "1 and not 1"
+  abort: empty revision set
+  [255]
+
+remove branchy history for qimport tests
+
+  $ hg strip 3
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+
+
+strip of applied mq should cleanup status file
+
+  $ echo "mq=" >> $HGRCPATH
+  $ hg up -C 3
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ echo fooagain >> bar
+  $ hg ci -mf
+  $ hg qimport -r tip:2
+
+applied patches before strip
+
+  $ hg qapplied
+  2.diff
+  3.diff
+  4.diff
+
+stripping revision in queue
+
+  $ hg strip 3
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+
+applied patches after stripping rev in queue
+
+  $ hg qapplied
+  2.diff
+
+stripping ancestor of queue
+
+  $ hg strip 1
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+
+applied patches after stripping ancestor of queue
+
+  $ hg qapplied
+
+Verify strip protects against stripping wc parent when there are uncommited mods
+
+  $ echo b > b
+  $ hg add b
+  $ hg ci -m 'b'
+  $ hg log --graph
+  @  changeset:   1:7519abd79d14
+  |  tag:         tip
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     b
+  |
+  o  changeset:   0:9ab35a2d17cb
+     user:        test
+     date:        Thu Jan 01 00:00:00 1970 +0000
+     summary:     a
+  
+
+  $ echo c > b
+  $ echo c > bar
+  $ hg strip tip
+  abort: local changes found
+  [255]
+  $ hg strip tip --keep
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+  $ hg log --graph
+  @  changeset:   0:9ab35a2d17cb
+     tag:         tip
+     user:        test
+     date:        Thu Jan 01 00:00:00 1970 +0000
+     summary:     a
+  
+  $ hg status
+  M bar
+  ? b
+
+Strip adds, removes, modifies with --keep
+
+  $ touch b
+  $ hg add b
+  $ hg commit -mb
+  $ touch c
+
+... with a clean working dir
+
+  $ hg add c
+  $ hg rm bar
+  $ hg commit -mc
+  $ hg status
+  $ hg strip --keep tip
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+  $ hg status
+  ! bar
+  ? c
+
+... with a dirty working dir
+
+  $ hg add c
+  $ hg rm bar
+  $ hg commit -mc
+  $ hg status
+  $ echo b > b
+  $ echo d > d
+  $ hg strip --keep tip
+  saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
+  $ hg status
+  M b
+  ! bar
+  ? c
+  ? d
+  $ cd ..
+
+stripping many nodes on a complex graph (issue3299)
+
+  $ hg init issue3299
+  $ cd issue3299
+  $ hg debugbuilddag '@a.:a@b.:b.:x<a@a.:a<b@b.:b<a@a.:a'
+  $ hg strip 'not ancestors(x)'
+  saved backup bundle to $TESTTMP/issue3299/.hg/strip-backup/*-backup.hg (glob)
+
+test hg strip -B bookmark
+
+  $ cd ..
+  $ hg init bookmarks
+  $ cd bookmarks
+  $ hg debugbuilddag '..<2.*1/2:m<2+3:c<m+3:a<2.:b'
+  $ hg bookmark -r 'a' 'todelete'
+  $ hg bookmark -r 'b' 'B'
+  $ hg bookmark -r 'b' 'nostrip'
+  $ hg bookmark -r 'c' 'delete'
+  $ hg up -C todelete
+  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ hg strip -B nostrip
+  bookmark 'nostrip' deleted
+  abort: empty revision set
+  [255]
+  $ hg strip -B todelete
+  bookmark 'todelete' deleted
+  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  saved backup bundle to $TESTTMP/bookmarks/.hg/strip-backup/*-backup.hg (glob)
+  $ hg id -ir dcbb326fdec2
+  abort: unknown revision 'dcbb326fdec2'!
+  [255]
+  $ hg id -ir d62d843c9a01
+  d62d843c9a01
+  $ hg bookmarks
+     B                         9:ff43616e5d0f
+     delete                    6:2702dd0c91e7
+  $ hg strip -B delete
+  bookmark 'delete' deleted
+  saved backup bundle to $TESTTMP/bookmarks/.hg/strip-backup/*-backup.hg (glob)
+  $ hg id -ir 6:2702dd0c91e7
+  abort: unknown revision '2702dd0c91e7'!
+  [255]
+
+  $ cd ..
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-subrepo-git.t
--- a/tests/test-subrepo-git.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-subrepo-git.t	Tue Oct 01 10:44:59 2013 -0700
@@ -155,6 +155,8 @@
   added 1 changesets with 1 changes to 1 files (+1 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
   $ hg merge 2>/dev/null
+   subrepository s diverged (local revision: 796959400868, remote revision: aa84837ccfbd)
+  (M)erge, keep (l)ocal or keep (r)emote? m
   pulling subrepo s from $TESTTMP/gitroot
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
@@ -462,6 +464,8 @@
   da5f5b1d8ffcf62fb8327bcd3c89a4367a6018e7
   $ cd ..
   $ hg update 4
+   subrepository s diverged (local revision: da5f5b1d8ffc, remote revision: aa84837ccfbd)
+  (M)erge, keep (l)ocal or keep (r)emote? m
    subrepository sources for s differ
   use (l)ocal source (da5f5b1) or (r)emote source (aa84837)?
    l
@@ -487,6 +491,8 @@
   HEAD is now at aa84837... f
   $ cd ..
   $ hg update 1
+   subrepository s diverged (local revision: 32a343883b74, remote revision: da5f5b1d8ffc)
+  (M)erge, keep (l)ocal or keep (r)emote? m
    subrepository sources for s differ (in checked out version)
   use (l)ocal source (32a3438) or (r)emote source (da5f5b1)?
    l
@@ -508,6 +514,8 @@
   $ hg id -n
   1+
   $ hg update 7
+   subrepository s diverged (local revision: 32a343883b74, remote revision: 32a343883b74)
+  (M)erge, keep (l)ocal or keep (r)emote? m
    subrepository sources for s differ
   use (l)ocal source (32a3438) or (r)emote source (32a3438)?
    l
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-subrepo-svn.t
--- a/tests/test-subrepo-svn.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-subrepo-svn.t	Tue Oct 01 10:44:59 2013 -0700
@@ -319,6 +319,8 @@
   2M
   $ cd ..
   $ hg update tip
+   subrepository s diverged (local revision: 2, remote revision: 3)
+  (M)erge, keep (l)ocal or keep (r)emote? m
    subrepository sources for s differ
   use (l)ocal source (2) or (r)emote source (3)?
    l
@@ -349,6 +351,8 @@
   $ svn update -qr 1
   $ cd ..
   $ hg update 1
+   subrepository s diverged (local revision: 3, remote revision: 2)
+  (M)erge, keep (l)ocal or keep (r)emote? m
    subrepository sources for s differ (in checked out version)
   use (l)ocal source (1) or (r)emote source (2)?
    l
@@ -371,6 +375,8 @@
   $ hg id -n
   1+
   $ hg update tip
+   subrepository s diverged (local revision: 3, remote revision: 3)
+  (M)erge, keep (l)ocal or keep (r)emote? m
    subrepository sources for s differ
   use (l)ocal source (1) or (r)emote source (3)?
    l
@@ -404,6 +410,8 @@
   $ svn update -qr 2
   $ cd ..
   $ hg update 1
+   subrepository s diverged (local revision: 3, remote revision: 2)
+  (M)erge, keep (l)ocal or keep (r)emote? m
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg id -n
   1+
@@ -477,7 +485,8 @@
 This is surprising, but is also correct based on the current code:
   $ echo "updating should (maybe) fail" > obstruct/other
   $ hg co tip
-  abort: crosses branches (merge branches or use --clean to discard changes)
+  abort: uncommitted changes
+  (commit or update --clean to discard changes)
   [255]
 
 Point to a Subversion branch which has since been deleted and recreated
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-subrepo.t
--- a/tests/test-subrepo.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-subrepo.t	Tue Oct 01 10:44:59 2013 -0700
@@ -236,7 +236,9 @@
    .hgsubstate: versions differ -> m
   updating: .hgsubstate 1/1 files (100.00%)
   subrepo merge e45c8b14af55+ f94576341bcf 1831e14459c4
-    subrepo t: both sides changed, merge with t:7af322bc1198a32402fe903e0b7ebcfc5c9bf8f4:hg
+    subrepo t: both sides changed 
+   subrepository t diverged (local revision: 20a0db6fbf6c, remote revision: 7af322bc1198)
+  (M)erge, keep (l)ocal or keep (r)emote? m
   merging subrepo t
     searching for copies back to rev 2
   resolving manifests
@@ -252,6 +254,7 @@
   merging t incomplete! (edit conflicts, then use 'hg resolve --mark')
   0 files updated, 0 files merged, 0 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
+    subrepo t: merge with t:7af322bc1198a32402fe903e0b7ebcfc5c9bf8f4:hg
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
@@ -620,6 +623,8 @@
   $ hg up 5
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg merge 4    # try to merge default into br again
+   subrepository s diverged (local revision: f8f13b33206e, remote revision: a3f9062a4f88)
+  (M)erge, keep (l)ocal or keep (r)emote? m
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ cd ..
@@ -922,9 +927,13 @@
   $ hg -R t id
   e95bcfa18a35+
   $ hg update tip
+   subrepository s diverged (local revision: fc627a69481f, remote revision: 12a213df6fa9)
+  (M)erge, keep (l)ocal or keep (r)emote? m
    subrepository sources for s differ
   use (l)ocal source (fc627a69481f) or (r)emote source (12a213df6fa9)?
    l
+   subrepository t diverged (local revision: e95bcfa18a35, remote revision: 52c0adc0515a)
+  (M)erge, keep (l)ocal or keep (r)emote? m
    subrepository sources for t differ
   use (l)ocal source (e95bcfa18a35) or (r)emote source (52c0adc0515a)?
    l
@@ -953,6 +962,10 @@
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd ..
   $ hg update 10
+   subrepository s diverged (local revision: 12a213df6fa9, remote revision: fc627a69481f)
+  (M)erge, keep (l)ocal or keep (r)emote? m
+   subrepository t diverged (local revision: 52c0adc0515a, remote revision: 20a0db6fbf6c)
+  (M)erge, keep (l)ocal or keep (r)emote? m
    subrepository sources for t differ (in checked out version)
   use (l)ocal source (7af322bc1198) or (r)emote source (20a0db6fbf6c)?
    l
@@ -976,9 +989,13 @@
   $ hg -R t id
   7af322bc1198+
   $ hg update tip
+   subrepository s diverged (local revision: 12a213df6fa9, remote revision: 12a213df6fa9)
+  (M)erge, keep (l)ocal or keep (r)emote? m
    subrepository sources for s differ
   use (l)ocal source (02dcf1d70411) or (r)emote source (12a213df6fa9)?
    l
+   subrepository t diverged (local revision: 52c0adc0515a, remote revision: 52c0adc0515a)
+  (M)erge, keep (l)ocal or keep (r)emote? m
    subrepository sources for t differ
   use (l)ocal source (7af322bc1198) or (r)emote source (52c0adc0515a)?
    l
@@ -1006,6 +1023,8 @@
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd ..
   $ hg update 11
+   subrepository s diverged (local revision: 12a213df6fa9, remote revision: fc627a69481f)
+  (M)erge, keep (l)ocal or keep (r)emote? m
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg id -n
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-symlink-placeholder.t
--- a/tests/test-symlink-placeholder.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-symlink-placeholder.t	Tue Oct 01 10:44:59 2013 -0700
@@ -41,6 +41,13 @@
   a (no-eol)
   $ hg --config extensions.n=$TESTTMP/nolink.py st --debug
 
+Empty placeholder:
+
+  $ rm b
+  $ touch b
+  $ hg --config extensions.n=$TESTTMP/nolink.py st --debug
+  ignoring suspect symlink placeholder "b"
+
 Write binary data to the placeholder:
 
   >>> open('b', 'w').write('this is a binary\0')
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-up-local-change.t
--- a/tests/test-up-local-change.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-up-local-change.t	Tue Oct 01 10:44:59 2013 -0700
@@ -167,10 +167,11 @@
   summary:     2
   
   $ hg --debug up
-  abort: crosses branches (merge branches or use --clean to discard changes)
+  abort: uncommitted changes
+  (commit and merge, or update --clean to discard changes)
   [255]
   $ hg --debug merge
-  abort: outstanding uncommitted changes
+  abort: uncommitted changes
   (use 'hg status' to list changes)
   [255]
   $ hg --debug merge -f
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-update-branches.t
--- a/tests/test-update-branches.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-update-branches.t	Tue Oct 01 10:44:59 2013 -0700
@@ -94,7 +94,8 @@
   parent=5
 
   $ norevtest 'none clean same'   clean 2
-  abort: crosses branches (merge branches or update --check to force update)
+  abort: not a linear update
+  (merge or update --check to force update)
   parent=2
 
 
@@ -122,22 +123,32 @@
   M sub/suba
 
   $ revtest 'none dirty same'   dirty 2 3
-  abort: crosses branches (merge branches or use --clean to discard changes)
+  abort: uncommitted changes
+  (commit or update --clean to discard changes)
   parent=2
   M foo
 
   $ revtest 'none dirtysub same'   dirtysub 2 3
-  abort: crosses branches (merge branches or use --clean to discard changes)
+  abort: uncommitted changes
+  (commit or update --clean to discard changes)
   parent=2
   M sub/suba
 
   $ revtest 'none dirty cross'  dirty 3 4
-  abort: crosses branches (merge branches or use --clean to discard changes)
+  abort: uncommitted changes
+  (commit or update --clean to discard changes)
   parent=3
   M foo
 
+  $ norevtest 'none dirty cross'  dirty 2
+  abort: uncommitted changes
+  (commit and merge, or update --clean to discard changes)
+  parent=2
+  M foo
+
   $ revtest 'none dirtysub cross'  dirtysub 3 4
-  abort: crosses branches (merge branches or use --clean to discard changes)
+  abort: uncommitted changes
+  (commit or update --clean to discard changes)
   parent=3
   M sub/suba
 
@@ -146,12 +157,12 @@
   parent=2
 
   $ revtest '-c dirty linear'   dirty 1 2 -c
-  abort: uncommitted local changes
+  abort: uncommitted changes
   parent=1
   M foo
 
   $ revtest '-c dirtysub linear'   dirtysub 1 2 -c
-  abort: uncommitted local changes
+  abort: uncommitted changes
   parent=1
   M sub/suba
 
@@ -222,5 +233,6 @@
   $ hg up --quiet 0
   $ hg up --quiet 2
   $ hg up 5
-  abort: crosses branches (merge branches or use --clean to discard changes)
+  abort: uncommitted changes
+  (commit or update --clean to discard changes)
   [255]
diff -r 1aaefba2a3a9 -r 5c0dc243fe5b tests/test-update-issue1456.t
--- a/tests/test-update-issue1456.t	Tue Oct 01 00:12:34 2013 +0900
+++ b/tests/test-update-issue1456.t	Tue Oct 01 10:44:59 2013 -0700
@@ -18,7 +18,7 @@
 
   $ echo dirty > foo
   $ hg up -c
-  abort: uncommitted local changes
+  abort: uncommitted changes
   [255]
   $ hg up -q
   $ cat foo