def load_py(stream, filepath=None):
"""Load python-formatted data from a stream.
Args:
stream (file-like object).
Returns:
dict.
"""
with add_sys_paths(config.package_definition_build_python_paths):
return _load_py(stream, filepath=filepath)
def _get_preprocessed(self, data):
"""
Returns:
(DeveloperPackage, new_data) 2-tuple IF the preprocess function
changed the package; otherwise None.
"""
from rez.serialise import process_python_objects
from rez.utils.data_utils import get_dict_diff_str
from copy import deepcopy
def _get_package_level():
return getattr(self, "preprocess", None)
def _get_global_level():
# load globally configured preprocess function
package_preprocess_function = self.config.package_preprocess_function
if not package_preprocess_function:
return None
elif isfunction(package_preprocess_function):
preprocess_func = package_preprocess_function
else:
if '.' not in package_preprocess_function:
print_error(
"Setting 'package_preprocess_function' must be of "
"form 'module[.module.module...].funcname'. Package "
"preprocessing has not been applied.")
return None
elif isinstance(package_preprocess_function, basestring):
if '.' not in package_preprocess_function:
print_error(
"Setting 'package_preprocess_function' must be of "
"form 'module[.module.module...].funcname'. "
"Package preprocessing has not been applied.")
return None
name, funcname = package_preprocess_function.rsplit('.', 1)
try:
module = __import__(name=name, fromlist=[funcname])
except Exception as e:
print_error(
"Failed to load preprocessing function '%s': %s" %
(package_preprocess_function, str(e)))
return None
setattr(module, "InvalidPackageError", InvalidPackageError)
preprocess_func = getattr(module, funcname)
else:
print_error("Invalid package_preprocess_function: %s" %
package_preprocess_function)
return None
if not preprocess_func or not isfunction(preprocess_func):
print_error("Function '%s' not found" %
package_preprocess_function)
return None
return preprocess_func
with add_sys_paths(config.package_definition_build_python_paths):
preprocess_mode = PreprocessMode[
self.config.package_preprocess_mode]
package_preprocess = _get_package_level()
global_preprocess = _get_global_level()
if preprocess_mode == PreprocessMode.after:
preprocessors = [global_preprocess, package_preprocess]
elif preprocess_mode == PreprocessMode.before:
preprocessors = [package_preprocess, global_preprocess]
else:
preprocessors = [package_preprocess or global_preprocess]
preprocessed_data = deepcopy(data)
for preprocessor in preprocessors:
if not preprocessor:
continue
level = "global" if preprocessor == global_preprocess else "local"
print_info("Applying {0} preprocess function".format(level))
# apply preprocessing
try:
preprocessor(this=self, data=preprocessed_data)
except InvalidPackageError:
raise
except Exception as e:
print_error("Failed to apply preprocess: %s: %s" %
(e.__class__.__name__, str(e)))
return None
# if preprocess added functions, these may need to be converted to
# SourceCode instances
preprocessed_data = process_python_objects(preprocessed_data)
if preprocessed_data == data:
return None
# recreate package from modified package data
package = create_package(self.name,
preprocessed_data,
package_cls=self.__class__)
# print summary of changed package attributes
txt = get_dict_diff_str(
data,
preprocessed_data,
title="Package attributes were changed in preprocessing:")
print_info(txt)
return package, preprocessed_data
