def __call__(backends=None):
backends = backends or ResourceManager._discover_types()
for backend, cls in get_resource_classes(backends):
param_doc = "\n".join([
" {}: {}".format(p, pdoc)
for p, pdoc in sorted(get_resource_backends(cls).items())
])
if param_doc:
out = "Backend parameters for '{}'\n{}".format(
backend, param_doc)
else:
out = "No backend parameters for '{}'".format(backend)
print(out)
def get_resource_classes(names=None):
for name in names or ResourceManager._discover_types():
try:
module = import_module('reproman.resource.{}'.format(name))
except ImportError as exc:
import difflib
known = ResourceManager._discover_types()
suggestions = difflib.get_close_matches(name, known)
lgr.warning(
"Failed to import resource %s: %s. %s: %s", name, exc_str(exc),
"Similar backends" if suggestions else "Known backends",
', '.join(suggestions or known))
continue
class_name = ''.join([token.capitalize() for token in name.split('_')])
cls = getattr(module, class_name)
if issubclass(cls, Resource):
yield name, cls
else:
lgr.debug(
"Skipping %s.%s because it is not a Resource. "
"Consider moving away", module, class_name)