comparison mercurial/streamclone.py @ 26447:591088f7028a

streamclone: add explicit check for empty local repo

Stream clone doesn't work with non-empty local repositories. In upcoming
patches, we'll move stream cloning to the regular pull code path. Add an
explicit check on the repository being empty to prevent streaming clones
to non-empty repos.

26446:3ea10bb761ce

    Returns a tuple of (supported, requirements). ``supported`` is True if
    streaming clone is supported and False otherwise. ``requirements`` is
    a set of repo requirements from the remote, or ``None`` if stream clone
    isn't supported.
    """
    # Streaming clone only works if all data is being requested.
    if heads:
        return False, None

    # If we don't have a preference, let the server decide for us. This

26447:591088f7028a

    Returns a tuple of (supported, requirements). ``supported`` is True if
    streaming clone is supported and False otherwise. ``requirements`` is
    a set of repo requirements from the remote, or ``None`` if stream clone
    isn't supported.
    """
    # Streaming clone only works on empty repositories.
    if len(repo):
        return False, None

    # Streaming clone only works if all data is being requested.
    if heads:
        return False, None

    # If we don't have a preference, let the server decide for us. This