comparison mercurial/localrepo.py @ 21989:bdb6d97f0a04

getbundle: add a ``cg`` boolean argument to control changegroup inclusion

The ``getbundle`` function was initially design to return a changegroup bundle.
However, bundle2 allows transmitting a wide range of data. Some bundle2
requests may not include a changegroup at all.

Before this changeset, the client would request a changegroup for
``heads=[nullid]`` and receive an empty changegroup.

We introduce an official boolean parameter, ``cg``, that can be set
to false to disable changegroup generation on getbundle. A new bundle2
capability is introduced to let the client know.

21988:12cd3827b860

    requirements = ['revlogv1']
    filtername = None

    bundle2caps = {'HG2X': (),
                   'b2x:listkeys': (),
                   'b2x:pushkey': ()}

    # a list of (ui, featureset) functions.
    # only functions defined in module of enabled extensions are invoked
    featuresetupfuncs = set()

21989:bdb6d97f0a04

    requirements = ['revlogv1']
    filtername = None

    bundle2caps = {'HG2X': (),
                   'b2x:listkeys': (),
                   'b2x:pushkey': (),
                   'b2x:changegroup': (),
                  }

    # a list of (ui, featureset) functions.
    # only functions defined in module of enabled extensions are invoked
    featuresetupfuncs = set()