import os
from paste.deploy import (
loadapp,
appconfig,
)
from pyramid.compat import configparser
from logging.config import fileConfig
from pyramid.scripting import prepare
[docs]def get_app(config_uri, name=None, options=None, loadapp=loadapp):
""" Return the WSGI application named ``name`` in the PasteDeploy
config file specified by ``config_uri``.
``options``, if passed, should be a dictionary used as variable assignments
like ``{'http_port': 8080}``. This is useful if e.g. ``%(http_port)s`` is
used in the config file.
If the ``name`` is None, this will attempt to parse the name from
the ``config_uri`` string expecting the format ``inifile#name``.
If no name is found, the name will default to "main"."""
path, section = _getpathsec(config_uri, name)
config_name = 'config:%s' % path
here_dir = os.getcwd()
app = loadapp(
config_name,
name=section,
relative_to=here_dir,
global_conf=options)
return app
[docs]def get_appsettings(config_uri, name=None, options=None, appconfig=appconfig):
""" Return a dictionary representing the key/value pairs in an ``app``
section within the file represented by ``config_uri``.
``options``, if passed, should be a dictionary used as variable assignments
like ``{'http_port': 8080}``. This is useful if e.g. ``%(http_port)s`` is
used in the config file.
If the ``name`` is None, this will attempt to parse the name from
the ``config_uri`` string expecting the format ``inifile#name``.
If no name is found, the name will default to "main"."""
path, section = _getpathsec(config_uri, name)
config_name = 'config:%s' % path
here_dir = os.getcwd()
return appconfig(
config_name,
name=section,
relative_to=here_dir,
global_conf=options)
[docs]def setup_logging(config_uri, fileConfig=fileConfig,
configparser=configparser):
"""
Set up logging via the logging module's fileConfig function with the
filename specified via ``config_uri`` (a string in the form
``filename#sectionname``).
ConfigParser defaults are specified for the special ``__file__``
and ``here`` variables, similar to PasteDeploy config loading.
"""
path, _ = _getpathsec(config_uri, None)
parser = configparser.ConfigParser()
parser.read([path])
if parser.has_section('loggers'):
config_file = os.path.abspath(path)
return fileConfig(
config_file,
dict(__file__=config_file, here=os.path.dirname(config_file))
)
def _getpathsec(config_uri, name):
if '#' in config_uri:
path, section = config_uri.split('#', 1)
else:
path, section = config_uri, 'main'
if name:
section = name
return path, section
[docs]def bootstrap(config_uri, request=None, options=None):
""" Load a WSGI application from the PasteDeploy config file specified
by ``config_uri``. The environment will be configured as if it is
currently serving ``request``, leaving a natural environment in place
to write scripts that can generate URLs and utilize renderers.
This function returns a dictionary with ``app``, ``root``, ``closer``,
``request``, and ``registry`` keys. ``app`` is the WSGI app loaded
(based on the ``config_uri``), ``root`` is the traversal root resource
of the Pyramid application, and ``closer`` is a parameterless callback
that may be called when your script is complete (it pops a threadlocal
stack).
.. note::
Most operations within :app:`Pyramid` expect to be invoked within the
context of a WSGI request, thus it's important when loading your
application to anchor it when executing scripts and other code that is
not normally invoked during active WSGI requests.
.. note::
For a complex config file containing multiple :app:`Pyramid`
applications, this function will setup the environment under the context
of the last-loaded :app:`Pyramid` application. You may load a specific
application yourself by using the lower-level functions
:meth:`pyramid.paster.get_app` and :meth:`pyramid.scripting.prepare` in
conjunction with :attr:`pyramid.config.global_registries`.
``config_uri`` -- specifies the PasteDeploy config file to use for the
interactive shell. The format is ``inifile#name``. If the name is left
off, ``main`` will be assumed.
``request`` -- specified to anchor the script to a given set of WSGI
parameters. For example, most people would want to specify the host,
scheme and port such that their script will generate URLs in relation
to those parameters. A request with default parameters is constructed
for you if none is provided. You can mutate the request's ``environ``
later to setup a specific host/port/scheme/etc.
``options`` Is passed to get_app for use as variable assignments like
{'http_port': 8080} and then use %(http_port)s in the
config file.
See :ref:`writing_a_script` for more information about how to use this
function.
"""
app = get_app(config_uri, options=options)
env = prepare(request)
env['app'] = app
return env
