def main_config():
"""
django-develop-config CLI entry point.
"""
if not utils.is_inside_virtual_env():
_fail('Run django-develop-config inside a virtualenv')
dd = _get_DjangoDevelop() # type: DjangoDevelop
try:
[base_settings_module] = sys.argv[1:2]
except ValueError:
print('Usage: django-develop-config <base_settings_module>')
print()
# Show current configuration
if dd.instance_path.exists():
print('Instance directory: {}'.format(dd.instance_path))
print()
config = dd.read_config()
base_settings_module = config.get('django-develop', 'base_settings_module', fallback=None)
print('Current base settings module: {}'.format(
utils.SUCCESS(base_settings_module) if base_settings_module else
'not configured'))
print()
# TODO: Add CLI flag for include_problems?
utils.print_candidate_settings()
raise SystemExit(2)
else:
dd.init_instance(base_settings_module)
def test_is_inside_virtual_env(self):
"""
Check `utils.is_inside_virtual_env()` against various sets of sys prefix paths.
"""
system = mock.sentinel.system
virtual = mock.sentinel.virtual
# These are the sets of sys module attributes that should be present or absent
# with various versions of Python and virtualenv / venv.
test_cases = {
'py2_base': dict(prefix=system),
# Python 3 (as of 3.3 / PEP 405) adds a sys.base_prefix attribute
'py3_base': dict(base_prefix=system, prefix=system),
'py3_venv': dict(base_prefix=system, prefix=virtual),
# virtualenv saves sys.real_prefix, and changes the others
'py2_virtualenv': dict(real_prefix=system, prefix=virtual),
'py3_virtualenv': dict(real_prefix=system, prefix=virtual, base_prefix=virtual),
}
for (label, sys_attrs) in test_cases.items():
with self.subTest(label=label):
# Note: The spec=[] is important so that absent sys_attrs raise AttributeError
# instead of returning mocks.
with mock.patch('django_develop.utils.sys', spec=[], **sys_attrs):
expected = sys_attrs['prefix'] is virtual
self.assertEqual(utils.is_inside_virtual_env(), expected)
def main():
"""
django-develop CLI entry point.
"""
# XXX: Bail out early if being invoked for autocompletion.
utility = ManagementUtility()
utility.autocomplete()
if not utils.is_inside_virtual_env():
_fail('Run django-develop inside a virtualenv')
dd = _get_DjangoDevelop()
if not dd.instance_path.exists():
_fail('django-develop not configured, try "django-develop-config"')
else:
# Set up and hand over to Django
dd.activate_dev_settings()
utility.execute()
