comparison mercurial/extensions.py @ 28506:10252652c6e4

extensions: factor import error reporting out

To clarify third party extensions lookup, we are about to add a third place
where extensions are searched for. So we factor the error reporting logic out to
be able to easily reuse it in the next patch.

28505:d5512a0a8ad6

    components = name.split('.')
    for comp in components[1:]:
        mod = getattr(mod, comp)
    return mod

def load(ui, name, path):
    if name.startswith('hgext.') or name.startswith('hgext/'):
        shortname = name[6:]
    else:
        shortname = name

        mod = loadpath(path, 'hgext.%s' % name)
    else:
        try:
            mod = _importh("hgext.%s" % name)
        except ImportError as err:
            ui.debug('could not import hgext.%s (%s): trying %s\n'
                     % (name, err, name))
            if ui.debugflag:
                ui.traceback()
            mod = _importh(name)

    # Before we do anything with the extension, check against minimum stated
    # compatibility. This gives extension authors a mechanism to have their
    # extensions short circuit when loaded with a known incompatible version

28506:10252652c6e4

    components = name.split('.')
    for comp in components[1:]:
        mod = getattr(mod, comp)
    return mod

def _reportimporterror(ui, err, failed, next):
    ui.debug('could not import %s (%s): trying %s\n'
             % (failed, err, next))
    if ui.debugflag:
        ui.traceback()

def load(ui, name, path):
    if name.startswith('hgext.') or name.startswith('hgext/'):
        shortname = name[6:]
    else:
        shortname = name

        mod = loadpath(path, 'hgext.%s' % name)
    else:
        try:
            mod = _importh("hgext.%s" % name)
        except ImportError as err:
            _reportimporterror(ui, err, "hgext.%s" % name, name)
            mod = _importh(name)

    # Before we do anything with the extension, check against minimum stated
    # compatibility. This gives extension authors a mechanism to have their
    # extensions short circuit when loaded with a known incompatible version