def __init__(self, cache):
if not has_beaker:
raise errors.RuntimeException(
"Can't initialize Beaker plugin; Beaker is not installed.")
global _beaker_cache
if _beaker_cache is None:
if 'manager' in cache.template.cache_args:
_beaker_cache = cache.template.cache_args['manager']
else:
_beaker_cache = beaker_cache.CacheManager()
super(BeakerCacheImpl, self).__init__(cache)
def load(self, name):
if name in self.impls:
return self.impls[name]()
else:
import pkg_resources
for impl in pkg_resources.iter_entry_points(self.group, name):
self.impls[name] = impl.load
return impl.load()
else:
from choco import errors
raise errors.RuntimeException("Can't load plugin %s %s" %
(self.group, name))
def capture(context, callable_, *args, **kwargs):
"""Execute the given template def, capturing the output into
a buffer.
See the example in :ref:`namespaces_python_modules`.
"""
if not compat.callable(callable_):
raise errors.RuntimeException(
"capture() function expects a callable as "
"its argument (i.e. capture(func, *args, **kwargs))")
context._push_buffer()
try:
callable_(*args, **kwargs)
finally:
buf = context._pop_buffer()
return buf.getvalue()
def __init__(self,
text=None,
filename=None,
uri=None,
format_errors=False,
error_handler=None,
lookup=None,
output_encoding=None,
encoding_errors='strict',
module_directory=None,
cache_args=None,
cache_impl='beaker',
cache_enabled=True,
cache_type=None,
cache_dir=None,
cache_url=None,
module_filename=None,
input_encoding=None,
disable_unicode=False,
module_writer=None,
bytestring_passthrough=False,
default_filters=None,
buffer_filters=(),
strict_undefined=False,
imports=None,
future_imports=None,
enable_loop=True,
preprocessor=None,
lexer_cls=None):
if uri:
self.module_id = re.sub(r'\W', "_", uri)
self.uri = uri
elif filename:
self.module_id = re.sub(r'\W', "_", filename)
drive, path = os.path.splitdrive(filename)
path = os.path.normpath(path).replace(os.path.sep, "/")
self.uri = path
else:
self.module_id = "memory:" + hex(id(self))
self.uri = self.module_id
u_norm = self.uri
if u_norm.startswith("/"):
u_norm = u_norm[1:]
u_norm = os.path.normpath(u_norm)
if u_norm.startswith(".."):
raise errors.TemplateLookupException(
"Template uri \"%s\" is invalid - "
"it cannot be relative outside "
"of the root path." % self.uri)
self.input_encoding = input_encoding
self.output_encoding = output_encoding
self.encoding_errors = encoding_errors
self.disable_unicode = disable_unicode
self.bytestring_passthrough = bytestring_passthrough or disable_unicode
self.enable_loop = enable_loop
self.strict_undefined = strict_undefined
self.module_writer = module_writer
if compat.py3k and disable_unicode:
raise errors.UnsupportedError(
"Choco for Python 3 does not "
"support disabling Unicode")
elif output_encoding and disable_unicode:
raise errors.UnsupportedError(
"output_encoding must be set to "
"None when disable_unicode is used.")
if default_filters is None:
if compat.py3k or self.disable_unicode:
self.default_filters = ['str']
else:
self.default_filters = ['unicode']
else:
self.default_filters = default_filters
self.buffer_filters = buffer_filters
self.imports = imports
self.future_imports = future_imports
self.preprocessor = preprocessor
if lexer_cls is not None:
self.lexer_cls = lexer_cls
# if plain text, compile code in memory only
if text is not None:
(code, module) = _compile_text(self, text, filename)
self._code = code
self._source = text
ModuleInfo(module, None, self, filename, code, text)
elif filename is not None:
# if template filename and a module directory, load
# a filesystem-based module file, generating if needed
if module_filename is not None:
path = module_filename
elif module_directory is not None:
path = os.path.abspath(
os.path.join(
os.path.normpath(module_directory),
u_norm + ".py"
)
)
else:
path = None
module = self._compile_from_file(path, filename)
else:
raise errors.RuntimeException(
"Template requires text or filename")
self.module = module
self.filename = filename
self.callable_ = self.module.render_body
self.format_errors = format_errors
self.error_handler = error_handler
self.lookup = lookup
self.module_directory = module_directory
self._setup_cache_args(
cache_impl, cache_enabled, cache_args,
cache_type, cache_dir, cache_url
)
def __getattr__(self, key):
raise errors.RuntimeException("No loop context is established")