merge: make 'diverging renames' diagnostic a more helpful note.

See the Hg Book on why we actually want to detect this case:
http://hgbook.red-bean.com/read/mercurial-in-daily-use.html#id364290

Before:

$ hg up deadbeef
warning: detected divergent renames of X to:
...

After:

$ hg up deadbeef
note: possible conflict - X was renamed multiple times to:
...

No functionality change.

mercurial/merge.py

@@ -1,543 +1,544 b''
 # merge.py - directory-level update/merge handling for Mercurial
 #
 # Copyright 2006, 2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from node import nullid, nullrev, hex, bin
 from i18n import _
 import util, filemerge, copies, subrepo
 import errno, os, shutil
 
 class mergestate(object):
     '''track 3-way merge state of individual files'''
     def __init__(self, repo):
         self._repo = repo
         self._dirty = False
         self._read()
     def reset(self, node=None):
         self._state = {}
         if node:
             self._local = node
         shutil.rmtree(self._repo.join("merge"), True)
         self._dirty = False
     def _read(self):
         self._state = {}
         try:
             f = self._repo.opener("merge/state")
             for i, l in enumerate(f):
                 if i == 0:
                     self._local = bin(l[:-1])
                 else:
                     bits = l[:-1].split("\0")
                     self._state[bits[0]] = bits[1:]
         except IOError, err:
             if err.errno != errno.ENOENT:
                 raise
         self._dirty = False
     def commit(self):
         if self._dirty:
             f = self._repo.opener("merge/state", "w")
             f.write(hex(self._local) + "\n")
             for d, v in self._state.iteritems():
                 f.write("\0".join([d] + v) + "\n")
             self._dirty = False
     def add(self, fcl, fco, fca, fd, flags):
         hash = util.sha1(fcl.path()).hexdigest()
         self._repo.opener("merge/" + hash, "w").write(fcl.data())
         self._state[fd] = ['u', hash, fcl.path(), fca.path(),
                            hex(fca.filenode()), fco.path(), flags]
         self._dirty = True
     def __contains__(self, dfile):
         return dfile in self._state
     def __getitem__(self, dfile):
         return self._state[dfile][0]
     def __iter__(self):
         l = self._state.keys()
         l.sort()
         for f in l:
             yield f
     def mark(self, dfile, state):
         self._state[dfile][0] = state
         self._dirty = True
     def resolve(self, dfile, wctx, octx):
         if self[dfile] == 'r':
             return 0
         state, hash, lfile, afile, anode, ofile, flags = self._state[dfile]
         f = self._repo.opener("merge/" + hash)
         self._repo.wwrite(dfile, f.read(), flags)
         fcd = wctx[dfile]
         fco = octx[ofile]
         fca = self._repo.filectx(afile, fileid=anode)
         r = filemerge.filemerge(self._repo, self._local, lfile, fcd, fco, fca)
         if not r:
             self.mark(dfile, 'r')
         return r
 
 def _checkunknown(wctx, mctx):
     "check for collisions between unknown files and files in mctx"
     for f in wctx.unknown():
         if f in mctx and mctx[f].cmp(wctx[f]):
             raise util.Abort(_("untracked file in working directory differs"
                                " from file in requested revision: '%s'") % f)
 
 def _checkcollision(mctx):
     "check for case folding collisions in the destination context"
     folded = {}
     for fn in mctx:
         fold = fn.lower()
         if fold in folded:
             raise util.Abort(_("case-folding collision between %s and %s")
                              % (fn, folded[fold]))
         folded[fold] = fn
 
 def _forgetremoved(wctx, mctx, branchmerge):
     """
     Forget removed files
 
     If we're jumping between revisions (as opposed to merging), and if
     neither the working directory nor the target rev has the file,
     then we need to remove it from the dirstate, to prevent the
     dirstate from listing the file when it is no longer in the
     manifest.
 
     If we're merging, and the other revision has removed a file
     that is not present in the working directory, we need to mark it
     as removed.
     """
 
     action = []
     state = branchmerge and 'r' or 'f'
     for f in wctx.deleted():
         if f not in mctx:
             action.append((f, state))
 
     if not branchmerge:
         for f in wctx.removed():
             if f not in mctx:
                 action.append((f, "f"))
 
     return action
 
 def manifestmerge(repo, p1, p2, pa, overwrite, partial):
     """
     Merge p1 and p2 with ancestor pa and generate merge action list
 
     overwrite = whether we clobber working files
     partial = function to filter file lists
     """
 
     def fmerge(f, f2, fa):
         """merge flags"""
         a, m, n = ma.flags(fa), m1.flags(f), m2.flags(f2)
         if m == n: # flags agree
             return m # unchanged
         if m and n and not a: # flags set, don't agree, differ from parent
             r = repo.ui.promptchoice(
                 _(" conflicting flags for %s\n"
                   "(n)one, e(x)ec or sym(l)ink?") % f,
                 (_("&None"), _("E&xec"), _("Sym&link")), 0)
             if r == 1:
                 return "x" # Exec
             if r == 2:
                 return "l" # Symlink
             return ""
         if m and m != a: # changed from a to m
             return m
         if n and n != a: # changed from a to n
             return n
         return '' # flag was cleared
 
     def act(msg, m, f, *args):
         repo.ui.debug(" %s: %s -> %s\n" % (f, msg, m))
         action.append((f, m) + args)
 
     action, copy = [], {}
 
     if overwrite:
         pa = p1
     elif pa == p2: # backwards
         pa = p1.p1()
     elif pa and repo.ui.configbool("merge", "followcopies", True):
         dirs = repo.ui.configbool("merge", "followdirs", True)
         copy, diverge = copies.copies(repo, p1, p2, pa, dirs)
         for of, fl in diverge.iteritems():
             act("divergent renames", "dr", of, fl)
 
     repo.ui.note(_("resolving manifests\n"))
     repo.ui.debug(" overwrite %s partial %s\n" % (overwrite, bool(partial)))
     repo.ui.debug(" ancestor %s local %s remote %s\n" % (pa, p1, p2))
 
     m1, m2, ma = p1.manifest(), p2.manifest(), pa.manifest()
     copied = set(copy.values())
 
     if '.hgsubstate' in m1:
         # check whether sub state is modified
         for s in p1.substate:
             if p1.sub(s).dirty():
                 m1['.hgsubstate'] += "+"
                 break
 
     # Compare manifests
     for f, n in m1.iteritems():
         if partial and not partial(f):
             continue
         if f in m2:
             rflags = fmerge(f, f, f)
             a = ma.get(f, nullid)
             if n == m2[f] or m2[f] == a: # same or local newer
                 # is file locally modified or flags need changing?
                 # dirstate flags may need to be made current
                 if m1.flags(f) != rflags or n[20:]:
                     act("update permissions", "e", f, rflags)
             elif n == a: # remote newer
                 act("remote is newer", "g", f, rflags)
             else: # both changed
                 act("versions differ", "m", f, f, f, rflags, False)
         elif f in copied: # files we'll deal with on m2 side
             pass
         elif f in copy:
             f2 = copy[f]
             if f2 not in m2: # directory rename
                 act("remote renamed directory to " + f2, "d",
                     f, None, f2, m1.flags(f))
             else: # case 2 A,B/B/B or case 4,21 A/B/B
                 act("local copied/moved to " + f2, "m",
                     f, f2, f, fmerge(f, f2, f2), False)
         elif f in ma: # clean, a different, no remote
             if n != ma[f]:
                 if repo.ui.promptchoice(
                     _(" local changed %s which remote deleted\n"
                       "use (c)hanged version or (d)elete?") % f,
                     (_("&Changed"), _("&Delete")), 0):
                     act("prompt delete", "r", f)
                 else:
                     act("prompt keep", "a", f)
             elif n[20:] == "a": # added, no remote
                 act("remote deleted", "f", f)
             elif n[20:] != "u":
                 act("other deleted", "r", f)
 
     for f, n in m2.iteritems():
         if partial and not partial(f):
             continue
         if f in m1 or f in copied: # files already visited
             continue
         if f in copy:
             f2 = copy[f]
             if f2 not in m1: # directory rename
                 act("local renamed directory to " + f2, "d",
                     None, f, f2, m2.flags(f))
             elif f2 in m2: # rename case 1, A/A,B/A
                 act("remote copied to " + f, "m",
                     f2, f, f, fmerge(f2, f, f2), False)
             else: # case 3,20 A/B/A
                 act("remote moved to " + f, "m",
                     f2, f, f, fmerge(f2, f, f2), True)
         elif f not in ma:
             act("remote created", "g", f, m2.flags(f))
         elif n != ma[f]:
             if repo.ui.promptchoice(
                 _("remote changed %s which local deleted\n"
                   "use (c)hanged version or leave (d)eleted?") % f,
                 (_("&Changed"), _("&Deleted")), 0) == 0:
                 act("prompt recreating", "g", f, m2.flags(f))
 
     return action
 
 def actionkey(a):
     return a[1] == 'r' and -1 or 0, a
 
 def applyupdates(repo, action, wctx, mctx, actx):
     """apply the merge action list to the working directory
 
     wctx is the working copy context
     mctx is the context to be merged into the working copy
     actx is the context of the common ancestor
     """
 
     updated, merged, removed, unresolved = 0, 0, 0, 0
     ms = mergestate(repo)
     ms.reset(wctx.parents()[0].node())
     moves = []
     action.sort(key=actionkey)
     substate = wctx.substate # prime
 
     # prescan for merges
     u = repo.ui
     for a in action:
         f, m = a[:2]
         if m == 'm': # merge
             f2, fd, flags, move = a[2:]
             if f == '.hgsubstate': # merged internally
                 continue
             repo.ui.debug("preserving %s for resolve of %s\n" % (f, fd))
             fcl = wctx[f]
             fco = mctx[f2]
             if mctx == actx: # backwards, use working dir parent as ancestor
                 if fcl.parents():
                     fca = fcl.parents()[0]
                 else:
                     fca = repo.filectx(f, fileid=nullrev)
             else:
                 fca = fcl.ancestor(fco, actx)
             if not fca:
                 fca = repo.filectx(f, fileid=nullrev)
             ms.add(fcl, fco, fca, fd, flags)
             if f != fd and move:
                 moves.append(f)
 
     # remove renamed files after safely stored
     for f in moves:
         if os.path.lexists(repo.wjoin(f)):
             repo.ui.debug("removing %s\n" % f)
             os.unlink(repo.wjoin(f))
 
     audit_path = util.path_auditor(repo.root)
 
     numupdates = len(action)
     for i, a in enumerate(action):
         f, m = a[:2]
         u.progress(_('updating'), i + 1, item=f, total=numupdates,
                    unit=_('files'))
         if f and f[0] == "/":
             continue
         if m == "r": # remove
             repo.ui.note(_("removing %s\n") % f)
             audit_path(f)
             if f == '.hgsubstate': # subrepo states need updating
                 subrepo.submerge(repo, wctx, mctx, wctx)
             try:
                 util.unlink(repo.wjoin(f))
             except OSError, inst:
                 if inst.errno != errno.ENOENT:
                     repo.ui.warn(_("update failed to remove %s: %s!\n") %
                                  (f, inst.strerror))
             removed += 1
         elif m == "m": # merge
             if f == '.hgsubstate': # subrepo states need updating
                 subrepo.submerge(repo, wctx, mctx, wctx.ancestor(mctx))
                 continue
             f2, fd, flags, move = a[2:]
             r = ms.resolve(fd, wctx, mctx)
             if r is not None and r > 0:
                 unresolved += 1
             else:
                 if r is None:
                     updated += 1
                 else:
                     merged += 1
             util.set_flags(repo.wjoin(fd), 'l' in flags, 'x' in flags)
             if f != fd and move and os.path.lexists(repo.wjoin(f)):
                 repo.ui.debug("removing %s\n" % f)
                 os.unlink(repo.wjoin(f))
         elif m == "g": # get
             flags = a[2]
             repo.ui.note(_("getting %s\n") % f)
             t = mctx.filectx(f).data()
             repo.wwrite(f, t, flags)
             t = None
             updated += 1
             if f == '.hgsubstate': # subrepo states need updating
                 subrepo.submerge(repo, wctx, mctx, wctx)
         elif m == "d": # directory rename
             f2, fd, flags = a[2:]
             if f:
                 repo.ui.note(_("moving %s to %s\n") % (f, fd))
                 t = wctx.filectx(f).data()
                 repo.wwrite(fd, t, flags)
                 util.unlink(repo.wjoin(f))
             if f2:
                 repo.ui.note(_("getting %s to %s\n") % (f2, fd))
                 t = mctx.filectx(f2).data()
                 repo.wwrite(fd, t, flags)
             updated += 1
         elif m == "dr": # divergent renames
             fl = a[2]
-            repo.ui.warn(_("warning: detected divergent renames of %s to:\n") % f)
+            repo.ui.warn(_("note: possible conflict - %s was renamed "
+                           "multiple times to:\n") % f)
             for nf in fl:
                 repo.ui.warn(" %s\n" % nf)
         elif m == "e": # exec
             flags = a[2]
             util.set_flags(repo.wjoin(f), 'l' in flags, 'x' in flags)
     ms.commit()
     u.progress(_('updating'), None, total=numupdates, unit=_('files'))
 
     return updated, merged, removed, unresolved
 
 def recordupdates(repo, action, branchmerge):
     "record merge actions to the dirstate"
 
     for a in action:
         f, m = a[:2]
         if m == "r": # remove
             if branchmerge:
                 repo.dirstate.remove(f)
             else:
                 repo.dirstate.forget(f)
         elif m == "a": # re-add
             if not branchmerge:
                 repo.dirstate.add(f)
         elif m == "f": # forget
             repo.dirstate.forget(f)
         elif m == "e": # exec change
             repo.dirstate.normallookup(f)
         elif m == "g": # get
             if branchmerge:
                 repo.dirstate.otherparent(f)
             else:
                 repo.dirstate.normal(f)
         elif m == "m": # merge
             f2, fd, flag, move = a[2:]
             if branchmerge:
                 # We've done a branch merge, mark this file as merged
                 # so that we properly record the merger later
                 repo.dirstate.merge(fd)
                 if f != f2: # copy/rename
                     if move:
                         repo.dirstate.remove(f)
                     if f != fd:
                         repo.dirstate.copy(f, fd)
                     else:
                         repo.dirstate.copy(f2, fd)
             else:
                 # We've update-merged a locally modified file, so
                 # we set the dirstate to emulate a normal checkout
                 # of that file some time in the past. Thus our
                 # merge will appear as a normal local file
                 # modification.
                 if f2 == fd: # file not locally copied/moved
                     repo.dirstate.normallookup(fd)
                 if move:
                     repo.dirstate.forget(f)
         elif m == "d": # directory rename
             f2, fd, flag = a[2:]
             if not f2 and f not in repo.dirstate:
                 # untracked file moved
                 continue
             if branchmerge:
                 repo.dirstate.add(fd)
                 if f:
                     repo.dirstate.remove(f)
                     repo.dirstate.copy(f, fd)
                 if f2:
                     repo.dirstate.copy(f2, fd)
             else:
                 repo.dirstate.normal(fd)
                 if f:
                     repo.dirstate.forget(f)
 
 def update(repo, node, branchmerge, force, partial):
     """
     Perform a merge between the working directory and the given node
 
     node = the node to update to, or None if unspecified
     branchmerge = whether to merge between branches
     force = whether to force branch merging or file overwriting
     partial = a function to filter file lists (dirstate not updated)
 
     The table below shows all the behaviors of the update command
     given the -c and -C or no options, whether the working directory
     is dirty, whether a revision is specified, and the relationship of
     the parent rev to the target rev (linear, on the same named
     branch, or on another named branch).
 
     This logic is tested by test-update-branches.t.
 
     -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   y    *     *   |    ---  discard  ---
      y   n    y     *   |    ---    (3)    ---
      y   n    n     *   |    ---    ok     ---
      y   y    *     *   |    ---    (4)    ---
 
     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)
     """
 
     onode = node
     wlock = repo.wlock()
     try:
         wc = repo[None]
         if node is None:
             # tip of current branch
             try:
                 node = repo.branchtags()[wc.branch()]
             except KeyError:
                 if wc.branch() == "default": # no default branch!
                     node = repo.lookup("tip") # update to tip
                 else:
                     raise util.Abort(_("branch %s not found") % wc.branch())
         overwrite = force and not branchmerge
         pl = wc.parents()
         p1, p2 = pl[0], repo[node]
         pa = p1.ancestor(p2)
         fp1, fp2, xp1, xp2 = p1.node(), p2.node(), str(p1), str(p2)
         fastforward = False
 
         ### check phase
         if not overwrite and len(pl) > 1:
             raise util.Abort(_("outstanding uncommitted merges"))
         if branchmerge:
             if pa == p2:
                 raise util.Abort(_("merging with a working directory ancestor"
                                    " has no effect"))
             elif pa == p1:
                 if p1.branch() != p2.branch():
                     fastforward = True
                 else:
                     raise util.Abort(_("nothing to merge (use 'hg update'"
                                        " or check 'hg heads')"))
             if not force and (wc.files() or wc.deleted()):
                 raise util.Abort(_("outstanding uncommitted changes "
                                    "(use 'hg status' to list changes)"))
         elif not overwrite:
             if pa == p1 or pa == p2: # linear
                 pass # all good
             elif wc.files() or wc.deleted():
                 raise util.Abort(_("crosses branches (merge branches or use"
                                    " --clean to discard changes)"))
             elif onode is None:
                 raise util.Abort(_("crosses branches (merge branches or use"
                                    " --check to force update)"))
             else:
                 # Allow jumping branches if clean and specific rev given
                 overwrite = True
 
         ### calculate phase
         action = []
         wc.status(unknown=True) # prime cache
         if not force:
             _checkunknown(wc, p2)
         if not util.checkcase(repo.path):
             _checkcollision(p2)
         action += _forgetremoved(wc, p2, branchmerge)
         action += manifestmerge(repo, wc, p2, pa, overwrite, partial)
 
         ### apply phase
         if not branchmerge: # just jump to the new rev
             fp1, fp2, xp1, xp2 = fp2, nullid, xp2, ''
         if not partial:
             repo.hook('preupdate', throw=True, parent1=xp1, parent2=xp2)
 
         stats = applyupdates(repo, action, wc, p2, pa)
 
         if not partial:
             repo.dirstate.setparents(fp1, fp2)
             recordupdates(repo, action, branchmerge)
             if not branchmerge and not fastforward:
                 repo.dirstate.setbranch(p2.branch())
     finally:
         wlock.release()
 
     if not partial:
         repo.hook('update', parent1=xp1, parent2=xp2, error=stats[3])
     return stats

tests/test-bundle-r.t

@@ -1,372 +1,372 b''
   $ hg init test
   $ cd test
   $ echo "0" >> afile
   $ hg add afile
   $ hg commit -m "0.0"
   $ echo "1" >> afile
   $ hg commit -m "0.1"
   $ echo "2" >> afile
   $ hg commit -m "0.2"
   $ echo "3" >> afile
   $ hg commit -m "0.3"
   $ hg update -C 0
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo "1" >> afile
   $ hg commit -m "1.1"
   created new head
   $ echo "2" >> afile
   $ hg commit -m "1.2"
   $ echo "a line" > fred
   $ echo "3" >> afile
   $ hg add fred
   $ hg commit -m "1.3"
   $ hg mv afile adifferentfile
   $ hg commit -m "1.3m"
   $ hg update -C 3
   1 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg mv afile anotherfile
   $ hg commit -m "0.3m"
   $ hg debugindex .hg/store/data/afile.i
      rev    offset  length   base linkrev nodeid       p1           p2
        0         0       3      0       0 362fef284ce2 000000000000 000000000000
        1         3       5      1       1 125144f7e028 362fef284ce2 000000000000
        2         8       7      2       2 4c982badb186 125144f7e028 000000000000
        3        15       9      3       3 19b1fc555737 4c982badb186 000000000000
   $ hg debugindex .hg/store/data/adifferentfile.i
      rev    offset  length   base linkrev nodeid       p1           p2
        0         0      75      0       7 2565f3199a74 000000000000 000000000000
   $ hg debugindex .hg/store/data/anotherfile.i
      rev    offset  length   base linkrev nodeid       p1           p2
        0         0      75      0       8 2565f3199a74 000000000000 000000000000
   $ hg debugindex .hg/store/data/fred.i
      rev    offset  length   base linkrev nodeid       p1           p2
        0         0       8      0       6 12ab3bcc5ea4 000000000000 000000000000
   $ hg debugindex .hg/store/00manifest.i
      rev    offset  length   base linkrev nodeid       p1           p2
        0         0      48      0       0 43eadb1d2d06 000000000000 000000000000
        1        48      48      1       1 8b89697eba2c 43eadb1d2d06 000000000000
        2        96      48      2       2 626a32663c2f 8b89697eba2c 000000000000
        3       144      48      3       3 f54c32f13478 626a32663c2f 000000000000
        4       192      58      3       6 de68e904d169 626a32663c2f 000000000000
        5       250      68      3       7 09bb521d218d de68e904d169 000000000000
        6       318      54      6       8 1fde233dfb0f f54c32f13478 000000000000
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   4 files, 9 changesets, 7 total revisions
   $ cd ..
   $ for i in 0 1 2 3 4 5 6 7 8; do
   >    mkdir test-"$i"
   >    hg --cwd test-"$i" init
   >    hg -R test bundle -r "$i" test-"$i".hg test-"$i"
   >    cd test-"$i"
   >    hg unbundle ../test-"$i".hg
   >    hg verify
   >    hg tip -q
   >    cd ..
   > done
   searching for changes
   1 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   1 files, 1 changesets, 1 total revisions
   0:f9ee2f85a263
   searching for changes
   2 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 1 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   1 files, 2 changesets, 2 total revisions
   1:34c2bf6b0626
   searching for changes
   3 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 3 changesets with 3 changes to 1 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   1 files, 3 changesets, 3 total revisions
   2:e38ba6f5b7e0
   searching for changes
   4 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 4 changes to 1 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   1 files, 4 changesets, 4 total revisions
   3:eebf5a27f8ca
   searching for changes
   2 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 1 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   1 files, 2 changesets, 2 total revisions
   1:095197eb4973
   searching for changes
   3 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 3 changesets with 3 changes to 1 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   1 files, 3 changesets, 3 total revisions
   2:1bb50a9436a7
   searching for changes
   4 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 5 changes to 2 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   2 files, 4 changesets, 5 total revisions
   3:7373c1169842
   searching for changes
   5 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 5 changesets with 6 changes to 3 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   3 files, 5 changesets, 6 total revisions
   4:a6a34bfa0076
   searching for changes
   5 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 5 changesets with 5 changes to 2 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   2 files, 5 changesets, 5 total revisions
   4:aa35859c02ea
   $ cd test-8
   $ hg pull ../test-7
   pulling from ../test-7
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 2 changes to 3 files (+1 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   4 files, 9 changesets, 7 total revisions
   $ hg rollback
   rolling back to revision 4 (undo pull)
   $ cd ..
 
 should fail
 
   $ hg -R test bundle --base 2 -r tip test-bundle-branch1.hg test-3
   abort: --base is incompatible with specifying a destination
   [255]
   $ hg -R test bundle -r tip test-bundle-branch1.hg
   abort: repository default-push not found!
   [255]
 
   $ hg -R test bundle --base 2 -r tip test-bundle-branch1.hg
   2 changesets found
   $ hg -R test bundle --base 2 -r 7 test-bundle-branch2.hg
   4 changesets found
   $ hg -R test bundle --base 2 test-bundle-all.hg
   6 changesets found
   $ hg -R test bundle --base 3 -r tip test-bundle-should-fail.hg
   1 changesets found
 
 empty bundle
 
   $ hg -R test bundle --base 7 --base 8 test-bundle-empty.hg
   no changes found
   [1]
 
 issue76 msg2163
 
   $ hg -R test bundle --base 3 -r 3 -r 3 test-bundle-cset-3.hg
   1 changesets found
 
 Issue1910: 'hg bundle --base $head' does not exclude $head from
 result
 
   $ hg -R test bundle --base 7 test-bundle-cset-7.hg
   4 changesets found
 
   $ hg clone test-2 test-9
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd test-9
 
 revision 2
 
   $ hg tip -q
   2:e38ba6f5b7e0
   $ hg unbundle ../test-bundle-should-fail.hg
   adding changesets
   transaction abort!
   rollback completed
   abort: 00changelog.i@eebf5a27f8ca: unknown parent!
   [255]
 
 revision 2
 
   $ hg tip -q
   2:e38ba6f5b7e0
   $ hg unbundle ../test-bundle-all.hg
   adding changesets
   adding manifests
   adding file changes
   added 6 changesets with 4 changes to 4 files (+1 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
 
 revision 8
 
   $ hg tip -q
   8:aa35859c02ea
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   4 files, 9 changesets, 7 total revisions
   $ hg rollback
   rolling back to revision 2 (undo unbundle)
 
 revision 2
 
   $ hg tip -q
   2:e38ba6f5b7e0
   $ hg unbundle ../test-bundle-branch1.hg
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 2 files
   (run 'hg update' to get a working copy)
 
 revision 4
 
   $ hg tip -q
   4:aa35859c02ea
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   2 files, 5 changesets, 5 total revisions
   $ hg rollback
   rolling back to revision 2 (undo unbundle)
   $ hg unbundle ../test-bundle-branch2.hg
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 3 changes to 3 files (+1 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
 
 revision 6
 
   $ hg tip -q
   6:a6a34bfa0076
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   3 files, 7 changesets, 6 total revisions
   $ hg rollback
   rolling back to revision 2 (undo unbundle)
   $ hg unbundle ../test-bundle-cset-7.hg
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 2 files
   (run 'hg update' to get a working copy)
 
 revision 4
 
   $ hg tip -q
   4:aa35859c02ea
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   2 files, 5 changesets, 5 total revisions
 
   $ cd ../test
   $ hg merge 7
-  warning: detected divergent renames of afile to:
+  note: possible conflict - afile was renamed multiple times to:
    anotherfile
    adifferentfile
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg ci -m merge
   $ cd ..
   $ hg -R test bundle --base 2 test-bundle-head.hg
   7 changesets found
   $ hg clone test-2 test-10
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd test-10
   $ hg unbundle ../test-bundle-head.hg
   adding changesets
   adding manifests
   adding file changes
   added 7 changesets with 4 changes to 4 files
   (run 'hg update' to get a working copy)
 
 revision 9
 
   $ hg tip -q
   9:905597b0d5d4
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   4 files, 10 changesets, 7 total revisions

tests/test-issue1175.t

@@ -1,53 +1,53 b''
 http://mercurial.selenic.com/bts/issue1175
 
   $ hg init
   $ touch a
   $ hg ci -Am0
   adding a
 
   $ hg mv a a1
   $ hg ci -m1
 
   $ hg co 0
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
   $ hg mv a a2
   $ hg up
-  warning: detected divergent renames of a to:
+  note: possible conflict - a was renamed multiple times to:
    a2
    a1
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ hg ci -m2
 
   $ touch a
   $ hg ci -Am3
   adding a
 
   $ hg mv a b
   $ hg ci -Am4 a
 
   $ hg ci --debug --traceback -Am5 b
   b
    b: searching for copy revision for a
    b: copy a:b80de5d138758541c5f05265ad144ab9fa86d1db
   committed changeset 5:89e8e4be0de296fa3d6dd7825ccc44d7dc0f1f3b
 
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   4 files, 6 changesets, 4 total revisions
 
   $ hg export --git tip
   # HG changeset patch
   # User test
   # Date 0 0
   # Node ID 89e8e4be0de296fa3d6dd7825ccc44d7dc0f1f3b
   # Parent  7fc86ba705e717a721dbc361bf8c9bc05a18ca2f
   5
   
   diff --git a/b b/b
   new file mode 100644
 

tests/test-rename-merge1.t

@@ -1,101 +1,101 b''
   $ hg init
 
   $ echo "[merge]" >> .hg/hgrc
   $ echo "followcopies = 1" >> .hg/hgrc
 
   $ echo foo > a
   $ echo foo > a2
   $ hg add a a2
   $ hg ci -m "start"
 
   $ hg mv a b
   $ hg mv a2 b2
   $ hg ci -m "rename"
 
   $ hg co 0
   2 files updated, 0 files merged, 2 files removed, 0 files unresolved
 
   $ echo blahblah > a
   $ echo blahblah > a2
   $ hg mv a2 c2
   $ hg ci -m "modify"
   created new head
 
   $ hg merge -y --debug
     searching for copies back to rev 1
     unmatched files in local:
      c2
     unmatched files in other:
      b
      b2
     all copies found (* = to merge, ! = divergent):
      c2 -> a2 !
      b -> a *
      b2 -> a2 !
     checking for directory renames
    a2: divergent renames -> dr
   resolving manifests
    overwrite None partial False
    ancestor af1939970a1c local 044f8520aeeb+ remote 85c198ef2f6c
    a: remote moved to b -> m
    b2: remote created -> g
   preserving a for resolve of b
   removing a
   updating: a 1/3 files (33.33%)
   picked tool 'internal:merge' for b (binary False symlink False)
   merging a and b to b
   my b@044f8520aeeb+ other b@85c198ef2f6c ancestor a@af1939970a1c
    premerge successful
   updating: a2 2/3 files (66.67%)
-  warning: detected divergent renames of a2 to:
+  note: possible conflict - a2 was renamed multiple times to:
    c2
    b2
   updating: b2 3/3 files (100.00%)
   getting b2
   1 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ hg status -AC
   M b
     a
   M b2
   R a
   C c2
 
   $ cat b
   blahblah
 
   $ hg ci -m "merge"
 
   $ hg debugindex .hg/store/data/b.i
      rev    offset  length   base linkrev nodeid       p1           p2
        0         0      67      0       1 57eacc201a7f 000000000000 000000000000
        1        67      72      1       3 4727ba907962 000000000000 57eacc201a7f
 
   $ hg debugrename b
   b renamed from a:dd03b83622e78778b403775d0d074b9ac7387a66
 
 This used to trigger a "divergent renames" warning, despite no renames
 
   $ hg cp b b3
   $ hg cp b b4
   $ hg ci -A -m 'copy b twice'
   $ hg up eb92d88a9712
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg up
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg rm b3 b4
   $ hg ci -m 'clean up a bit of our mess'
 
 We'd rather not warn on divergent renames done in the same changeset (issue2113)
 
   $ hg cp b b3
   $ hg mv b b4
   $ hg ci -A -m 'divergent renames in same changeset'
   $ hg up c761c6948de0
   1 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg up
-  warning: detected divergent renames of b to:
+  note: possible conflict - b was renamed multiple times to:
    b3
    b4
   2 files updated, 0 files merged, 1 files removed, 0 files unresolved

tests/test-rename-merge2.t

@@ -1,754 +1,754 b''
 
   $ mkdir -p t
   $ cd t
   $ cat <<EOF > merge
   > import sys, os
   > f = open(sys.argv[1], "wb")
   > f.write("merge %s %s %s" % (sys.argv[1], sys.argv[2], sys.argv[3]))
   > f.close()
   > EOF
   $ HGMERGE="python ../merge"; export HGMERGE
 
 perform a test merge with possible renaming
 args:
 $1 = action in local branch
 $2 = action in remote branch
 $3 = action in working dir
 $4 = expected result
 
   $ tm()
   > {
   >     mkdir t
   >     cd t
   >     hg init
   >     echo "[merge]" >> .hg/hgrc
   >     echo "followcopies = 1" >> .hg/hgrc
   > 
   >     # base
   >     echo base > a
   >     echo base > rev # used to force commits
   >     hg add a rev
   >     hg ci -m "base"
   > 
   >     # remote
   >     echo remote > rev
   >     if [ "$2" != "" ] ; then $2 ; fi
   >     hg ci -m "remote"
   > 
   >     # local
   >     hg co -q 0
   >     echo local > rev
   >     if [ "$1" != "" ] ; then $1 ; fi
   >     hg ci -m "local"
   > 
   >     # working dir
   >     echo local > rev
   >     if [ "$3" != "" ] ; then $3 ; fi
   > 
   >     # merge
   >     echo "--------------"
   >     echo "test L:$1 R:$2 W:$3 - $4"
   >     echo "--------------"
   >     hg merge -y --debug --traceback
   > 
   >     echo "--------------"
   >     hg status -camC -X rev
   > 
   >     hg ci -m "merge"
   > 
   >     echo "--------------"
   >     echo
   > 
   >     cd ..
   >     rm -r t
   > }
   $ up() {
   >     cp rev $1
   >     hg add $1 2> /dev/null
   >     if [ "$2" != "" ] ; then
   >         cp rev $2
   >         hg add $2 2> /dev/null
   >     fi
   > }
   $ uc() { up $1; hg cp $1 $2; } # update + copy
   $ um() { up $1; hg mv $1 $2; }
   $ nc() { hg cp $1 $2; } # just copy
   $ nm() { hg mv $1 $2; } # just move
   $ tm "up a  " "nc a b" "      " "1  get local a to b"
   created new head
   --------------
   test L:up a   R:nc a b W:       - 1  get local a to b
   --------------
     searching for copies back to rev 1
     unmatched files in other:
      b
     all copies found (* = to merge, ! = divergent):
      b -> a *
     checking for directory renames
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local e300d1c794ec+ remote 4ce40f5aca24
    rev: versions differ -> m
    a: remote copied to b -> m
   preserving a for resolve of b
   preserving rev for resolve of rev
   updating: a 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging a and b to b
   my b@e300d1c794ec+ other b@4ce40f5aca24 ancestor a@924404dff337
    premerge successful
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@e300d1c794ec+ other rev@4ce40f5aca24 ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
     a
   C a
   --------------
   
   $ tm "nc a b" "up a  " "      " "2  get rem change to a and b"
   created new head
   --------------
   test L:nc a b R:up a   W:       - 2  get rem change to a and b
   --------------
     searching for copies back to rev 1
     unmatched files in local:
      b
     all copies found (* = to merge, ! = divergent):
      b -> a *
     checking for directory renames
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 86a2aa42fc76+ remote f4db7e329e71
    a: remote is newer -> g
    b: local copied/moved to a -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   getting a
   updating: b 2/3 files (66.67%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b and a to b
   my b@86a2aa42fc76+ other a@f4db7e329e71 ancestor a@924404dff337
    premerge successful
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@86a2aa42fc76+ other rev@f4db7e329e71 ancestor rev@924404dff337
   1 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M a
   M b
     a
   --------------
   
   $ tm "up a  " "nm a b" "      " "3  get local a change to b, remove a"
   created new head
   --------------
   test L:up a   R:nm a b W:       - 3  get local a change to b, remove a
   --------------
     searching for copies back to rev 1
     unmatched files in other:
      b
     all copies found (* = to merge, ! = divergent):
      b -> a *
     checking for directory renames
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local e300d1c794ec+ remote bdb19105162a
    rev: versions differ -> m
    a: remote moved to b -> m
   preserving a for resolve of b
   preserving rev for resolve of rev
   removing a
   updating: a 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging a and b to b
   my b@e300d1c794ec+ other b@bdb19105162a ancestor a@924404dff337
    premerge successful
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@e300d1c794ec+ other rev@bdb19105162a ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
     a
   --------------
   
   $ tm "nm a b" "up a  " "      " "4  get remote change to b"
   created new head
   --------------
   test L:nm a b R:up a   W:       - 4  get remote change to b
   --------------
     searching for copies back to rev 1
     unmatched files in local:
      b
     all copies found (* = to merge, ! = divergent):
      b -> a *
     checking for directory renames
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 02963e448370+ remote f4db7e329e71
    b: local copied/moved to a -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: b 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b and a to b
   my b@02963e448370+ other a@f4db7e329e71 ancestor a@924404dff337
    premerge successful
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@02963e448370+ other rev@f4db7e329e71 ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
     a
   --------------
   
   $ tm "      " "nc a b" "      " "5  get b"
   created new head
   --------------
   test L:       R:nc a b W:       - 5  get b
   --------------
     searching for copies back to rev 1
     unmatched files in other:
      b
     all copies found (* = to merge, ! = divergent):
      b -> a 
     checking for directory renames
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 94b33a1b7f2d+ remote 4ce40f5aca24
    rev: versions differ -> m
    b: remote created -> g
   preserving rev for resolve of rev
   updating: b 1/2 files (50.00%)
   getting b
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@94b33a1b7f2d+ other rev@4ce40f5aca24 ancestor rev@924404dff337
   1 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   C a
   --------------
   
   $ tm "nc a b" "      " "      " "6  nothing"
   created new head
   --------------
   test L:nc a b R:       W:       - 6  nothing
   --------------
     searching for copies back to rev 1
     unmatched files in local:
      b
     all copies found (* = to merge, ! = divergent):
      b -> a 
     checking for directory renames
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 86a2aa42fc76+ remote 97c705ade336
    rev: versions differ -> m
   preserving rev for resolve of rev
   updating: rev 1/1 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@86a2aa42fc76+ other rev@97c705ade336 ancestor rev@924404dff337
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   C a
   C b
   --------------
   
   $ tm "      " "nm a b" "      " "7  get b"
   created new head
   --------------
   test L:       R:nm a b W:       - 7  get b
   --------------
     searching for copies back to rev 1
     unmatched files in other:
      b
     all copies found (* = to merge, ! = divergent):
      b -> a 
     checking for directory renames
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 94b33a1b7f2d+ remote bdb19105162a
    a: other deleted -> r
    rev: versions differ -> m
    b: remote created -> g
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   removing a
   updating: b 2/3 files (66.67%)
   getting b
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@94b33a1b7f2d+ other rev@bdb19105162a ancestor rev@924404dff337
   1 files updated, 1 files merged, 1 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   --------------
   
   $ tm "nm a b" "      " "      " "8  nothing"
   created new head
   --------------
   test L:nm a b R:       W:       - 8  nothing
   --------------
     searching for copies back to rev 1
     unmatched files in local:
      b
     all copies found (* = to merge, ! = divergent):
      b -> a 
     checking for directory renames
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 02963e448370+ remote 97c705ade336
    rev: versions differ -> m
   preserving rev for resolve of rev
   updating: rev 1/1 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@02963e448370+ other rev@97c705ade336 ancestor rev@924404dff337
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   C b
   --------------
   
   $ tm "um a b" "um a b" "      " "9  do merge with ancestor in a"
   created new head
   --------------
   test L:um a b R:um a b W:       - 9  do merge with ancestor in a
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 62e7bf090eba+ remote 49b6d8032493
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: b 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@62e7bf090eba+ other b@49b6d8032493 ancestor a@924404dff337
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@62e7bf090eba+ other rev@49b6d8032493 ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   --------------
   
 
 m "um a c" "um x c" "      " "10 do merge with no ancestor"
 
   $ tm "nm a b" "nm a c" "      " "11 get c, keep b"
   created new head
   --------------
   test L:nm a b R:nm a c W:       - 11 get c, keep b
   --------------
     searching for copies back to rev 1
     unmatched files in local:
      b
     unmatched files in other:
      c
     all copies found (* = to merge, ! = divergent):
      c -> a !
      b -> a !
     checking for directory renames
    a: divergent renames -> dr
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 02963e448370+ remote fe905ef2c33e
    rev: versions differ -> m
    c: remote created -> g
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
-  warning: detected divergent renames of a to:
+  note: possible conflict - a was renamed multiple times to:
    b
    c
   updating: c 2/3 files (66.67%)
   getting c
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@02963e448370+ other rev@fe905ef2c33e ancestor rev@924404dff337
   1 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M c
   C b
   --------------
   
   $ tm "nc a b" "up b  " "      " "12 merge b no ancestor"
   created new head
   --------------
   test L:nc a b R:up b   W:       - 12 merge b no ancestor
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 86a2aa42fc76+ remote af30c7647fc7
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: b 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@86a2aa42fc76+ other b@af30c7647fc7 ancestor b@000000000000
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@86a2aa42fc76+ other rev@af30c7647fc7 ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   C a
   --------------
   
   $ tm "up b  " "nm a b" "      " "13 merge b no ancestor"
   created new head
   --------------
   test L:up b   R:nm a b W:       - 13 merge b no ancestor
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 59318016310c+ remote bdb19105162a
    a: other deleted -> r
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   removing a
   updating: b 2/3 files (66.67%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@59318016310c+ other b@bdb19105162a ancestor b@000000000000
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@59318016310c+ other rev@bdb19105162a ancestor rev@924404dff337
   0 files updated, 2 files merged, 1 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   --------------
   
   $ tm "nc a b" "up a b" "      " "14 merge b no ancestor"
   created new head
   --------------
   test L:nc a b R:up a b W:       - 14 merge b no ancestor
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 86a2aa42fc76+ remote 8dbce441892a
    a: remote is newer -> g
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   getting a
   updating: b 2/3 files (66.67%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@86a2aa42fc76+ other b@8dbce441892a ancestor b@000000000000
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@86a2aa42fc76+ other rev@8dbce441892a ancestor rev@924404dff337
   1 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M a
   M b
   --------------
   
   $ tm "up b  " "nm a b" "      " "15 merge b no ancestor, remove a"
   created new head
   --------------
   test L:up b   R:nm a b W:       - 15 merge b no ancestor, remove a
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 59318016310c+ remote bdb19105162a
    a: other deleted -> r
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   removing a
   updating: b 2/3 files (66.67%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@59318016310c+ other b@bdb19105162a ancestor b@000000000000
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@59318016310c+ other rev@bdb19105162a ancestor rev@924404dff337
   0 files updated, 2 files merged, 1 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   --------------
   
   $ tm "nc a b" "up a b" "      " "16 get a, merge b no ancestor"
   created new head
   --------------
   test L:nc a b R:up a b W:       - 16 get a, merge b no ancestor
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 86a2aa42fc76+ remote 8dbce441892a
    a: remote is newer -> g
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   getting a
   updating: b 2/3 files (66.67%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@86a2aa42fc76+ other b@8dbce441892a ancestor b@000000000000
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@86a2aa42fc76+ other rev@8dbce441892a ancestor rev@924404dff337
   1 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M a
   M b
   --------------
   
   $ tm "up a b" "nc a b" "      " "17 keep a, merge b no ancestor"
   created new head
   --------------
   test L:up a b R:nc a b W:       - 17 keep a, merge b no ancestor
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 0b76e65c8289+ remote 4ce40f5aca24
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: b 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@0b76e65c8289+ other b@4ce40f5aca24 ancestor b@000000000000
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@0b76e65c8289+ other rev@4ce40f5aca24 ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   C a
   --------------
   
   $ tm "nm a b" "up a b" "      " "18 merge b no ancestor"
   created new head
   --------------
   test L:nm a b R:up a b W:       - 18 merge b no ancestor
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 02963e448370+ remote 8dbce441892a
    b: versions differ -> m
    rev: versions differ -> m
   remote changed a which local deleted
   use (c)hanged version or leave (d)eleted? c
    a: prompt recreating -> g
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   getting a
   updating: b 2/3 files (66.67%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@02963e448370+ other b@8dbce441892a ancestor b@000000000000
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@02963e448370+ other rev@8dbce441892a ancestor rev@924404dff337
   1 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M a
   M b
   --------------
   
   $ tm "up a b" "nm a b" "      " "19 merge b no ancestor, prompt remove a"
   created new head
   --------------
   test L:up a b R:nm a b W:       - 19 merge b no ancestor, prompt remove a
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 0b76e65c8289+ remote bdb19105162a
    local changed a which remote deleted
   use (c)hanged version or (d)elete? c
    a: prompt keep -> a
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   updating: b 2/3 files (66.67%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@0b76e65c8289+ other b@bdb19105162a ancestor b@000000000000
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@0b76e65c8289+ other rev@bdb19105162a ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   C a
   --------------
   
   $ tm "up a  " "um a b" "      " "20 merge a and b to b, remove a"
   created new head
   --------------
   test L:up a   R:um a b W:       - 20 merge a and b to b, remove a
   --------------
     searching for copies back to rev 1
     unmatched files in other:
      b
     all copies found (* = to merge, ! = divergent):
      b -> a *
     checking for directory renames
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local e300d1c794ec+ remote 49b6d8032493
    rev: versions differ -> m
    a: remote moved to b -> m
   preserving a for resolve of b
   preserving rev for resolve of rev
   removing a
   updating: a 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging a and b to b
   my b@e300d1c794ec+ other b@49b6d8032493 ancestor a@924404dff337
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@e300d1c794ec+ other rev@49b6d8032493 ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
     a
   --------------
   
   $ tm "um a b" "up a  " "      " "21 merge a and b to b"
   created new head
   --------------
   test L:um a b R:up a   W:       - 21 merge a and b to b
   --------------
     searching for copies back to rev 1
     unmatched files in local:
      b
     all copies found (* = to merge, ! = divergent):
      b -> a *
     checking for directory renames
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 62e7bf090eba+ remote f4db7e329e71
    b: local copied/moved to a -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: b 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b and a to b
   my b@62e7bf090eba+ other a@f4db7e329e71 ancestor a@924404dff337
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@62e7bf090eba+ other rev@f4db7e329e71 ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
     a
   --------------
   
 
 m "nm a b" "um x a" "      " "22 get a, keep b"
 
   $ tm "nm a b" "up a c" "      " "23 get c, keep b"
   created new head
   --------------
   test L:nm a b R:up a c W:       - 23 get c, keep b
   --------------
     searching for copies back to rev 1
     unmatched files in local:
      b
     unmatched files in other:
      c
     all copies found (* = to merge, ! = divergent):
      b -> a *
     checking for directory renames
   resolving manifests
    overwrite None partial False
    ancestor 924404dff337 local 02963e448370+ remote 2b958612230f
    b: local copied/moved to a -> m
    rev: versions differ -> m
    c: remote created -> g
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: b 1/3 files (33.33%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b and a to b
   my b@02963e448370+ other a@2b958612230f ancestor a@924404dff337
    premerge successful
   updating: c 2/3 files (66.67%)
   getting c
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@02963e448370+ other rev@2b958612230f ancestor rev@924404dff337
   1 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
     a
   M c
   --------------