comparison mercurial/discovery.py @ 14213:30273f0c776b

discovery: resurrect findoutgoing as findcommonoutgoing for extension hooks

discovery.findoutgoing used to be a useful hook for extensions like
hgsubversion. This patch reintroduces this version of findcommonincoming
which is meant to be used when computing outgoing changesets.

14212:8f551386abf0

      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".
    """

    if not remote.capable('getbundle'):
        return treediscovery.findcommonincoming(repo, remote, heads, force)

    res = setdiscovery.findcommonheads(repo.ui, repo, remote,
                                       abortwhenunrelated=not force)
    common, anyinc, srvheads = res
    return (list(common), anyinc, heads or list(srvheads))

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:

    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.'''
    common, inc, remoteheads = findcommonincoming(repo, remote, force=force)

    cl = repo.changelog
    outg = cl.findmissing(common, revs)

    if not outg:

14213:30273f0c776b

      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)

    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:

    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: