comparison mercurial/hg.py @ 40331:ac59de55c8b4

exchange: support declaring pull depth

Upcoming commits will teach exchangev2 how to perform a shallow
clone. This commit teaches hg.clone(), exchange.pull(), and
exchange.pulloperation to recognize a request for a shallow clone
by having the caller specify a numeric depth of the maximum number of
ancestor changesets to fetch.

There are certainly other ways we could control shallow-ness. But this
one is simple to implement and is also how the narrow extension
controls things. So it seems to make sense to start here.

Differential Revision: https://phab.mercurial-scm.org/D5136

40330:00a4cd368e3f

            os.mkdir(dstcachedir)
        util.copyfile(srcbranchcache, dstbranchcache)

def clone(ui, peeropts, source, dest=None, pull=False, revs=None,
          update=True, stream=False, branch=None, shareopts=None,
          storeincludepats=None, storeexcludepats=None):
    """Make a copy of an existing repository.

    Create a copy of an existing repository in a new directory.  The
    source and destination are URLs, as passed to the repository
    function.  Returns a pair of repository peers, the source and

                overrides = {('ui', 'quietbookmarkmove'): True}
                with local.ui.configoverride(overrides, 'clone'):
                    exchange.pull(local, srcpeer, revs,
                                  streamclonerequested=stream,
                                  includepats=storeincludepats,
                                  excludepats=storeexcludepats)
            elif srcrepo:
                # TODO lift restriction once exchange.push() accepts narrow
                # push.
                if narrow:
                    raise error.Abort(_('narrow clone not available for '

40331:ac59de55c8b4

            os.mkdir(dstcachedir)
        util.copyfile(srcbranchcache, dstbranchcache)

def clone(ui, peeropts, source, dest=None, pull=False, revs=None,
          update=True, stream=False, branch=None, shareopts=None,
          storeincludepats=None, storeexcludepats=None, depth=None):
    """Make a copy of an existing repository.

    Create a copy of an existing repository in a new directory.  The
    source and destination are URLs, as passed to the repository
    function.  Returns a pair of repository peers, the source and

                overrides = {('ui', 'quietbookmarkmove'): True}
                with local.ui.configoverride(overrides, 'clone'):
                    exchange.pull(local, srcpeer, revs,
                                  streamclonerequested=stream,
                                  includepats=storeincludepats,
                                  excludepats=storeexcludepats,
                                  depth=depth)
            elif srcrepo:
                # TODO lift restriction once exchange.push() accepts narrow
                # push.
                if narrow:
                    raise error.Abort(_('narrow clone not available for '