request.is_shell and request.is_scheduler are not set properly

[abastardi]

When the shell or scheduler are being run, these two request attributes are set, but not to the correct value (which should be False rather than None). And when the shell or scheduler are being run, these two attributes are not set at all (which results in None being returned). So, as it stands, request.is_shell and request.is_scheduler always return None.

The problem is that these attributes are set in gluon.main.wsgibase, which is only called for HTTP requests, but not when the shell or a scheduler task are being run.

Fix:

In gluon.main.wsgibase at https://github.com/web2py/web2py/blob/master/gluon/main.py#L373:

                is_shell = True if cmd_opts and cmd_opts.shell else False,
                is_sheduler = True if cmd_opts and cmd_opts.scheduler else False,

Actually, in wsgibase, I think these would always be False, so maybe just set each to False.

In gluon.shell.env at https://github.com/web2py/web2py/blob/master/gluon/shell.py#L131, add:

request.is_shell = global_settings.cmd_options.shell is not None
request.is_scheduler = global_settings.cmd_options.scheduler is not None