prepush: show details about new remote heads with --verbose

previously, this info was only shown with --debug

Note that the new remote heads are only shown if the command aborts,
that is, they are *not* shown if --force was specified.

See also change 91cb08a9e7fb.

mercurial/discovery.py

@@ -1,191 +1,191 b''
 # discovery.py - protocol changeset discovery functions
 #
 # Copyright 2010 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, short
 from i18n import _
 import util, setdiscovery, treediscovery
 
 def findcommonincoming(repo, remote, heads=None, force=False):
     """Return a tuple (common, anyincoming, heads) used to identify the common
     subset of nodes between repo and remote.
 
     "common" is a list of (at least) the heads of the common subset.
     "anyincoming" is testable as a boolean indicating if any nodes are missing
       locally. If remote does not support getbundle, this actually is a list of
       roots of the nodes that would be incoming, to be supplied to
       changegroupsubset. No code except for pull should be relying on this fact
       any longer.
     "heads" is either the supplied heads, or else the remote's heads.
 
     If you pass heads and they are all known locally, the reponse lists justs
     these heads in "common" and in "heads".
 
     Please use findcommonoutgoing to compute the set of outgoing nodes to give
     extensions a good hook into outgoing.
     """
 
     if not remote.capable('getbundle'):
         return treediscovery.findcommonincoming(repo, remote, heads, force)
 
     if heads:
         allknown = True
         nm = repo.changelog.nodemap
         for h in heads:
             if nm.get(h) is None:
                 allknown = False
                 break
         if allknown:
             return (heads, False, heads)
 
     res = setdiscovery.findcommonheads(repo.ui, repo, remote,
                                        abortwhenunrelated=not force)
     common, anyinc, srvheads = res
     return (list(common), anyinc, heads or list(srvheads))
 
 def findcommonoutgoing(repo, other, onlyheads=None, force=False, commoninc=None):
     '''Return a tuple (common, anyoutgoing, heads) used to identify the set
     of nodes present in repo but not in other.
 
     If onlyheads is given, only nodes ancestral to nodes in onlyheads (inclusive)
     are included. If you already know the local repo's heads, passing them in
     onlyheads is faster than letting them be recomputed here.
 
     If commoninc is given, it must the the result of a prior call to
     findcommonincoming(repo, other, force) to avoid recomputing it here.
 
     The returned tuple is meant to be passed to changelog.findmissing.'''
     common, _any, _hds = commoninc or findcommonincoming(repo, other, force=force)
     return (common, onlyheads or repo.heads())
 
 def prepush(repo, remote, force, revs, newbranch):
     '''Analyze the local and remote repositories and determine which
     changesets need to be pushed to the remote. Return value depends
     on circumstances:
 
     If we are not going to push anything, return a tuple (None,
     outgoing) where outgoing is 0 if there are no outgoing
     changesets and 1 if there are, but we refuse to push them
     (e.g. would create new remote heads).
 
     Otherwise, return a tuple (changegroup, remoteheads), where
     changegroup is a readable file-like object whose read() returns
     successive changegroup chunks ready to be sent over the wire and
     remoteheads is the list of remote heads.'''
     commoninc = findcommonincoming(repo, remote, force=force)
     common, revs = findcommonoutgoing(repo, remote, onlyheads=revs,
                                       commoninc=commoninc, force=force)
     _common, inc, remoteheads = commoninc
 
     cl = repo.changelog
     outg = cl.findmissing(common, revs)
 
     if not outg:
         repo.ui.status(_("no changes found\n"))
         return None, 1
 
     if not force and remoteheads != [nullid]:
         if remote.capable('branchmap'):
             # Check for each named branch if we're creating new remote heads.
             # To be a remote head after push, node must be either:
             # - unknown locally
             # - a local outgoing head descended from update
             # - a remote head that's known locally and not
             #   ancestral to an outgoing head
 
             # 1. Create set of branches involved in the push.
             branches = set(repo[n].branch() for n in outg)
 
             # 2. Check for new branches on the remote.
             remotemap = remote.branchmap()
             newbranches = branches - set(remotemap)
             if newbranches and not newbranch: # new branch requires --new-branch
                 branchnames = ', '.join(sorted(newbranches))
                 raise util.Abort(_("push creates new remote branches: %s!")
                                    % branchnames,
                                  hint=_("use 'hg push --new-branch' to create"
                                         " new remote branches"))
             branches.difference_update(newbranches)
 
             # 3. Construct the initial oldmap and newmap dicts.
             # They contain information about the remote heads before and
             # after the push, respectively.
             # Heads not found locally are not included in either dict,
             # since they won't be affected by the push.
             # unsynced contains all branches with incoming changesets.
             oldmap = {}
             newmap = {}
             unsynced = set()
             for branch in branches:
                 remotebrheads = remotemap[branch]
                 prunedbrheads = [h for h in remotebrheads if h in cl.nodemap]
                 oldmap[branch] = prunedbrheads
                 newmap[branch] = list(prunedbrheads)
                 if len(remotebrheads) > len(prunedbrheads):
                     unsynced.add(branch)
 
             # 4. Update newmap with outgoing changes.
             # This will possibly add new heads and remove existing ones.
             ctxgen = (repo[n] for n in outg)
             repo._updatebranchcache(newmap, ctxgen)
 
         else:
             # 1-4b. old servers: Check for new topological heads.
             # Construct {old,new}map with branch = None (topological branch).
             # (code based on _updatebranchcache)
             oldheads = set(h for h in remoteheads if h in cl.nodemap)
             newheads = oldheads.union(outg)
             if len(newheads) > 1:
                 for latest in reversed(outg):
                     if latest not in newheads:
                         continue
                     minhrev = min(cl.rev(h) for h in newheads)
                     reachable = cl.reachable(latest, cl.node(minhrev))
                     reachable.remove(latest)
                     newheads.difference_update(reachable)
             branches = set([None])
             newmap = {None: newheads}
             oldmap = {None: oldheads}
             unsynced = inc and branches or set()
 
         # 5. Check for new heads.
         # If there are more heads after the push than before, a suitable
         # error message, depending on unsynced status, is displayed.
         error = None
         for branch in branches:
             newhs = set(newmap[branch])
             oldhs = set(oldmap[branch])
             if len(newhs) > len(oldhs):
                 dhs = list(newhs - oldhs)
                 if error is None:
                     if branch != 'default':
                         error = _("push creates new remote head %s "
                                   "on branch '%s'!") % (short(dhs[0]), branch)
                     else:
                         error = _("push creates new remote head %s!"
                                   ) % short(dhs[0])
                     if branch in unsynced:
                         hint = _("you should pull and merge or "
                                  "use push -f to force")
                     else:
                         hint = _("did you forget to merge? "
                                  "use push -f to force")
-                repo.ui.debug("new remote heads on branch '%s'\n" % branch)
+                repo.ui.note("new remote heads on branch '%s'\n" % branch)
                 for h in dhs:
-                    repo.ui.debug("new remote head %s\n" % short(h))
+                    repo.ui.note("new remote head %s\n" % short(h))
         if error:
             raise util.Abort(error, hint=hint)
 
         # 6. Check for unsynced changes on involved branches.
         if unsynced:
             repo.ui.warn(_("note: unsynced remote changes!\n"))
 
     if revs is None:
         # use the fast path, no race possible on push
         cg = repo._changegroup(outg, 'push')
     else:
         cg = repo.getbundle('push', heads=revs, common=common)
     return cg, remoteheads

tests/test-push-warn.t

@@ -1,714 +1,720 b''
   $ echo "[extensions]" >> $HGRCPATH
   $ echo "graphlog=" >> $HGRCPATH
 
   $ hg init a
   $ cd a
   $ echo foo > t1
   $ hg add t1
   $ hg commit -m "1"
 
   $ cd ..
   $ hg clone a b
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ cd a
   $ echo foo > t2
   $ hg add t2
   $ hg commit -m "2"
 
   $ cd ../b
   $ echo foo > t3
   $ hg add t3
   $ hg commit -m "3"
 
   $ hg push ../a
   pushing to ../a
   searching for changes
   abort: push creates new remote head 1e108cc5548c!
   (you should pull and merge or use push -f to force)
   [255]
 
   $ hg push --debug ../a
   pushing to ../a
   query 1; heads
   searching for changes
   taking quick initial sample
   searching: 2 queries
   query 2; still undecided: 2, sample size is: 2
   2 total queries
   new remote heads on branch 'default'
   new remote head 1e108cc5548c
   abort: push creates new remote head 1e108cc5548c!
   (you should pull and merge or use push -f to force)
   [255]
 
   $ hg pull ../a
   pulling from ../a
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
 
   $ hg push ../a
   pushing to ../a
   searching for changes
   abort: push creates new remote head 1e108cc5548c!
   (did you forget to merge? use push -f to force)
   [255]
 
   $ hg merge
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ hg commit -m "4"
   $ hg push ../a
   pushing to ../a
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 1 changes to 1 files
 
   $ cd ..
 
   $ hg init c
   $ cd c
   $ for i in 0 1 2; do
   >     echo $i >> foo
   >     hg ci -Am $i
   > done
   adding foo
   $ cd ..
 
   $ hg clone c d
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ cd d
   $ for i in 0 1; do
   >    hg co -C $i
   >    echo d-$i >> foo
   >    hg ci -m d-$i
   > done
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   created new head
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   created new head
 
   $ HGMERGE=true hg merge 3
   merging foo
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ hg ci -m c-d
 
   $ hg push ../c
   pushing to ../c
   searching for changes
   abort: push creates new remote head 6346d66eb9f5!
   (did you forget to merge? use push -f to force)
   [255]
 
   $ hg push -r 2 ../c
   pushing to ../c
   searching for changes
   no changes found
 
   $ hg push -r 3 ../c
   pushing to ../c
   searching for changes
   abort: push creates new remote head a5dda829a167!
   (did you forget to merge? use push -f to force)
   [255]
 
-  $ hg push -r 3 -r 4 ../c
+  $ hg push -v -r 3 -r 4 ../c
   pushing to ../c
   searching for changes
+  all remote heads known locally
+  new remote heads on branch 'default'
+  new remote head a5dda829a167
+  new remote head ee8fbc7a0295
   abort: push creates new remote head a5dda829a167!
   (did you forget to merge? use push -f to force)
   [255]
 
-  $ hg push -f -r 3 -r 4 ../c
+  $ hg push -v -f -r 3 -r 4 ../c
   pushing to ../c
   searching for changes
+  all remote heads known locally
+  2 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 1 files (+2 heads)
 
   $ hg push -r 5 ../c
   pushing to ../c
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (-1 heads)
 
   $ hg in ../c
   comparing with ../c
   searching for changes
   no changes found
   [1]
 
 
 Issue450: push -r warns about remote head creation even if no heads
 will be created
 
   $ hg init ../e
   $ hg push -r 0 ../e
   pushing to ../e
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
 
   $ hg push -r 1 ../e
   pushing to ../e
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
 
   $ cd ..
 
 
 Issue736: named branches are not considered for detection of
 unmerged heads in "hg push"
 
   $ hg init f
   $ cd f
   $ hg -q branch a
   $ echo 0 > foo
   $ hg -q ci -Am 0
   $ echo 1 > foo
   $ hg -q ci -m 1
   $ hg -q up 0
   $ echo 2 > foo
   $ hg -q ci -m 2
   $ hg -q up 0
   $ hg -q branch b
   $ echo 3 > foo
   $ hg -q ci -m 3
   $ cd ..
 
   $ hg -q clone f g
   $ cd g
 
 Push on existing branch and new branch:
 
   $ hg -q up 1
   $ echo 4 > foo
   $ hg -q ci -m 4
   $ hg -q up 0
   $ echo 5 > foo
   $ hg -q branch c
   $ hg -q ci -m 5
 
   $ hg push ../f
   pushing to ../f
   searching for changes
   abort: push creates new remote branches: c!
   (use 'hg push --new-branch' to create new remote branches)
   [255]
 
   $ hg push -r 4 -r 5 ../f
   pushing to ../f
   searching for changes
   abort: push creates new remote branches: c!
   (use 'hg push --new-branch' to create new remote branches)
   [255]
 
 
 Multiple new branches:
 
   $ hg -q branch d
   $ echo 6 > foo
   $ hg -q ci -m 6
 
   $ hg push ../f
   pushing to ../f
   searching for changes
   abort: push creates new remote branches: c, d!
   (use 'hg push --new-branch' to create new remote branches)
   [255]
 
   $ hg push -r 4 -r 6 ../f
   pushing to ../f
   searching for changes
   abort: push creates new remote branches: c, d!
   (use 'hg push --new-branch' to create new remote branches)
   [255]
 
   $ cd ../g
 
 
 Fail on multiple head push:
 
   $ hg -q up 1
   $ echo 7 > foo
   $ hg -q ci -m 7
 
   $ hg push -r 4 -r 7 ../f
   pushing to ../f
   searching for changes
   abort: push creates new remote head 0b715ef6ff8f on branch 'a'!
   (did you forget to merge? use push -f to force)
   [255]
 
 Push replacement head on existing branches:
 
   $ hg -q up 3
   $ echo 8 > foo
   $ hg -q ci -m 8
 
   $ hg push -r 7 -r 8 ../f
   pushing to ../f
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 1 files
 
 
 Merge of branch a to other branch b followed by unrelated push
 on branch a:
 
   $ hg -q up 7
   $ HGMERGE=true hg -q merge 8
   $ hg -q ci -m 9
   $ hg -q up 8
   $ echo 10 > foo
   $ hg -q ci -m 10
 
   $ hg push -r 9 ../f
   pushing to ../f
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (-1 heads)
 
   $ hg push -r 10 ../f
   pushing to ../f
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
 
 
 Cheating the counting algorithm:
 
   $ hg -q up 9
   $ HGMERGE=true hg -q merge 2
   $ hg -q ci -m 11
   $ hg -q up 1
   $ echo 12 > foo
   $ hg -q ci -m 12
 
   $ hg push -r 11 -r 12 ../f
   pushing to ../f
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 1 files
 
 
 Failed push of new named branch:
 
   $ echo 12 > foo
   $ hg -q ci -m 12a
   [1]
   $ hg -q up 11
   $ echo 13 > foo
   $ hg -q branch e
   $ hg -q ci -m 13d
 
   $ hg push -r 12 -r 13 ../f
   pushing to ../f
   searching for changes
   abort: push creates new remote branches: e!
   (use 'hg push --new-branch' to create new remote branches)
   [255]
 
 
 Using --new-branch to push new named branch:
 
   $ hg push --new-branch -r 12 -r 13 ../f
   pushing to ../f
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
 
 
 Checking prepush logic does not allow silently pushing
 multiple new heads:
 
   $ cd ..
   $ hg init h
   $ echo init > h/init
   $ hg -R h ci -Am init
   adding init
   $ echo a > h/a
   $ hg -R h ci -Am a
   adding a
   $ hg clone h i
   updating to branch default
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg -R h up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo b > h/b
   $ hg -R h ci -Am b
   adding b
   created new head
   $ hg -R i up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo c > i/c
   $ hg -R i ci -Am c
   adding c
   created new head
 
   $ hg -R i push h
   pushing to h
   searching for changes
   abort: push creates new remote head 97bd0c84d346!
   (you should pull and merge or use push -f to force)
   [255]
 
 
 Check prepush logic with merged branches:
 
   $ hg init j
   $ hg -R j branch a
   marked working directory as branch a
   $ echo init > j/foo
   $ hg -R j ci -Am init
   adding foo
   $ hg clone j k
   updating to branch a
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo a1 > j/foo
   $ hg -R j ci -m a1
   $ hg -R k branch b
   marked working directory as branch b
   $ echo b > k/foo
   $ hg -R k ci -m b
   $ hg -R k up 0
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ hg -R k merge b
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ hg -R k ci -m merge
 
   $ hg -R k push -r a j
   pushing to j
   searching for changes
   abort: push creates new remote branches: b!
   (use 'hg push --new-branch' to create new remote branches)
   [255]
 
 
 Prepush -r should not allow you to sneak in new heads:
 
   $ hg init l
   $ cd l
   $ echo a >> foo
   $ hg -q add foo
   $ hg -q branch a
   $ hg -q ci -ma
   $ hg -q up null
   $ echo a >> foo
   $ hg -q add foo
   $ hg -q branch b
   $ hg -q ci -mb
   $ cd ..
   $ hg -q clone l m -u a
   $ cd m
   $ hg -q merge b
   $ hg -q ci -mmb
   $ hg -q up 0
   $ echo a >> foo
   $ hg -q ci -ma2
   $ hg -q up 2
   $ echo a >> foo
   $ hg -q branch -f b
   $ hg -q ci -mb2
   $ hg -q merge 3
   $ hg -q ci -mma
 
   $ hg push ../l -b b
   pushing to ../l
   searching for changes
   abort: push creates new remote head e7e31d71180f on branch 'a'!
   (did you forget to merge? use push -f to force)
   [255]
 
   $ cd ..
 
 
 Check prepush with new branch head on former topo non-head:
 
   $ hg init n
   $ cd n
   $ hg branch A
   marked working directory as branch A
   $ echo a >a
   $ hg ci -Ama
   adding a
   $ hg branch B
   marked working directory as branch B
   $ echo b >b
   $ hg ci -Amb
   adding b
 
 b is now branch head of B, and a topological head
 a is now branch head of A, but not a topological head
 
   $ hg clone . inner
   updating to branch B
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd inner
   $ hg up B
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo b1 >b1
   $ hg ci -Amb1
   adding b1
 
 in the clone b1 is now the head of B
 
   $ cd ..
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo a2 >a2
   $ hg ci -Ama2
   adding a2
 
 a2 is now the new branch head of A, and a new topological head
 it replaces a former inner branch head, so it should at most warn about
 A, not B
 
 glog of local:
 
   $ hg glog --template "{rev}: {branches} {desc}\n"
   @  2: A a2
   |
   | o  1: B b
   |/
   o  0: A a
   
 glog of remote:
 
   $ hg glog -R inner --template "{rev}: {branches} {desc}\n"
   @  2: B b1
   |
   o  1: B b
   |
   o  0: A a
   
 outgoing:
 
   $ hg out inner --template "{rev}: {branches} {desc}\n"
   comparing with inner
   searching for changes
   2: A a2
 
   $ hg push inner
   pushing to inner
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
 
   $ cd ..
 
 
 Check prepush with new branch head on former topo head:
 
   $ hg init o
   $ cd o
   $ hg branch A
   marked working directory as branch A
   $ echo a >a
   $ hg ci -Ama
   adding a
   $ hg branch B
   marked working directory as branch B
   $ echo b >b
   $ hg ci -Amb
   adding b
 
 b is now branch head of B, and a topological head
 
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo a1 >a1
   $ hg ci -Ama1
   adding a1
 
 a1 is now branch head of A, and a topological head
 
   $ hg clone . inner
   updating to branch A
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd inner
   $ hg up B
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo b1 >b1
   $ hg ci -Amb1
   adding b1
 
 in the clone b1 is now the head of B
 
   $ cd ..
   $ echo a2 >a2
   $ hg ci -Ama2
   adding a2
 
 a2 is now the new branch head of A, and a topological head
 it replaces a former topological and branch head, so this should not warn
 
 glog of local:
 
   $ hg glog --template "{rev}: {branches} {desc}\n"
   @  3: A a2
   |
   o  2: A a1
   |
   | o  1: B b
   |/
   o  0: A a
   
 glog of remote:
 
   $ hg glog -R inner --template "{rev}: {branches} {desc}\n"
   @  3: B b1
   |
   | o  2: A a1
   | |
   o |  1: B b
   |/
   o  0: A a
   
 outgoing:
 
   $ hg out inner --template "{rev}: {branches} {desc}\n"
   comparing with inner
   searching for changes
   3: A a2
 
   $ hg push inner
   pushing to inner
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
 
   $ cd ..
 
 
 Check prepush with new branch head and new child of former branch head
 but child is on different branch:
 
   $ hg init p
   $ cd p
   $ hg branch A
   marked working directory as branch A
   $ echo a0 >a
   $ hg ci -Ama0
   adding a
   $ echo a1 >a
   $ hg ci -ma1
   $ hg up null
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg branch B
   marked working directory as branch B
   $ echo b0 >b
   $ hg ci -Amb0
   adding b
   $ echo b1 >b
   $ hg ci -mb1
 
   $ hg clone . inner
   updating to branch B
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ hg up A
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg branch -f B
   marked working directory as branch B
   $ echo a3 >a
   $ hg ci -ma3
   created new head
   $ hg up 3
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg branch -f A
   marked working directory as branch A
   $ echo b3 >b
   $ hg ci -mb3
   created new head
 
 glog of local:
 
   $ hg glog --template "{rev}: {branches} {desc}\n"
   @  5: A b3
   |
   | o  4: B a3
   | |
   o |  3: B b1
   | |
   o |  2: B b0
    /
   o  1: A a1
   |
   o  0: A a0
   
 glog of remote:
 
   $ hg glog -R inner --template "{rev}: {branches} {desc}\n"
   @  3: B b1
   |
   o  2: B b0
   
   o  1: A a1
   |
   o  0: A a0
   
 outgoing:
 
   $ hg out inner --template "{rev}: {branches} {desc}\n"
   comparing with inner
   searching for changes
   4: B a3
   5: A b3
 
   $ hg push inner
   pushing to inner
   searching for changes
   abort: push creates new remote head 7d0f4fb6cf04 on branch 'A'!
   (did you forget to merge? use push -f to force)
   [255]
 
   $ hg push inner -r4 -r5
   pushing to inner
   searching for changes
   abort: push creates new remote head 7d0f4fb6cf04 on branch 'A'!
   (did you forget to merge? use push -f to force)
   [255]
 
   $ hg in inner
   comparing with inner
   searching for changes
   no changes found
   [1]