kallithea Files · rhodecode/lib/vcs/utils/imports.py

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Location: kallithea/rhodecode/lib/vcs/utils/imports.py

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Mads Kiilerich

compare: move get_changesets to compare controller where it is used - 2nd half that was lost in 6c79bfcd3b54

That is a better location than the pull request model. It should probably be
split up and moved to the backend specific Repository classes.

from rhodecode.lib.vcs.exceptions import VCSError


def import_class(class_path):
    """
    Returns class from the given path.

    For example, in order to get class located at
    ``vcs.backends.hg.MercurialRepository``:

        try:
            hgrepo = import_class('vcs.backends.hg.MercurialRepository')
        except VCSError:
            # hadle error
    """
    splitted = class_path.split('.')
    mod_path = '.'.join(splitted[:-1])
    class_name = splitted[-1]
    try:
        class_mod = __import__(mod_path, {}, {}, [class_name])
    except ImportError, err:
        msg = "There was problem while trying to import backend class. "\
            "Original error was:\n%s" % err
        raise VCSError(msg)
    cls = getattr(class_mod, class_name)

    return cls