OpenStack Study: startpanel.py

**** CubicPower OpenStack Study ****

# Licensed under the Apache License, Version 2.0 (the "License"); you may

# not use this file except in compliance with the License. You may obtain

# a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT

# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the

# License for the specific language governing permissions and limitations

# under the License.

import glob

from optparse import make_option # noqa

import os

from django.core.management.base import CommandError # noqa

from django.core.management.templates import TemplateCommand # noqa

from django.utils.importlib import import_module # noqa

import horizon

**** CubicPower OpenStack Study ****

class Command(TemplateCommand):

args = "[name] [dashboard name] [optional destination directory]"

option_list = TemplateCommand.option_list + (

make_option('--dashboard', '-d',

dest='dashboard',

action='store',

**** CubicPower OpenStack Study ****

    def handle(self, panel_name=None, **options):

        if panel_name is None:

            raise CommandError("You must provide a panel name.")

        if options.get('dashboard') is None:

            raise CommandError("You must specify the name of the dashboard "

                               "this panel will be registered with using the "

                               "-d or --dashboard option.")

        dashboard_path = options.get('dashboard')

        dashboard_mod_path = ".".join([dashboard_path, "dashboard"])

        # Check the the dashboard.py file in the dashboard app can be imported.

        # Add the dashboard information to our options to pass along if all

        # goes well.

        try:

            dashboard_mod = import_module(dashboard_mod_path)

            options["dash_path"] = dashboard_path

            options["dash_name"] = dashboard_path.split(".")[-1]

        except ImportError:

            raise CommandError("A dashboard.py module could not be imported "

                               " from the dashboard at %r."

                               % options.get("dashboard"))

        target = options.pop("target", None)

        if target == "auto":

            target = os.path.join(os.path.dirname(dashboard_mod.__file__),

                                  panel_name)

            if not os.path.exists(target):

                try:

                    os.mkdir(target)

                except OSError as exc:

                    raise CommandError("Unable to create panel directory: %s"

                                       % exc)

        # Use our default template if one isn't specified.

        if not options.get("template", None):

            options["template"] = self.template

        # We have html templates as well, so make sure those are included.

        options["extensions"].extend(["tmpl", "html"])

        # Check that the app_name cannot be imported.

        try:

            import_module(panel_name)

        except ImportError:

            pass

        else:

            raise CommandError("%r conflicts with the name of an existing "

                               "Python module and cannot be used as an app "

                               "name. Please try another name." % panel_name)

        super(Command, self).handle('panel', panel_name, target, **options)

        if not target:

            target = os.path.join(os.curdir, panel_name)

        # Rename our python template files.

        file_names = glob.glob(os.path.join(target, "*.py.tmpl"))

        for filename in file_names:

            os.rename(filename, filename[:-5])