def get_arguments(msmlfile):
"""Parses the command line arguments for the given `msmlfile`.
1. Generate an argument parser with :py:mod:`clictk`
2. Parses the command line
3. Check for `--xml`
1. if `--xml` is set, abort execution and generate CLI XML
2. else restore stdio channels
ns = p.parse_args()
.. note: only non-generated variables are exported as cli arguments
:param msmlfile:
:return: a dictionary of MSML variables
"""
exe = generate_cli(msmlfile)
parser = clictk.build_argument_parser(exe)
ns = parser.parse_args()
if ns.__xml__: # if `--xml` is set
xml = clictk.prettify(exe.as_xml())
# write to real stdout
consolecatcher._true_channels[0].write(xml)
sys.exit(0)
else:
# we do not need stdout sanity further more
consolecatcher._reset_stdio()
args = {}
for n, t in msmlfile.variables.items():
if hasattr(ns, n):
value = getattr(ns, n)
# file arguments are relative to the current working dir
if issubclass(t.sort.physical, InFile):
value = os.path.abspath(value)
try:
args[n] = conversion(str, t.sort)(value)
except TypeError as e:
print("Parameter %s missing" % n)
log.error("Parameter %s missing: Error", n)
sys.exit(1)
raise
return args
def xml_load(filename, schema=None):
parser = etree.XMLParser(
encoding="utf-8",
attribute_defaults=True,
ns_clean=True,
remove_blank_text=True,
remove_pis=True,
remove_comments=True,
schema=etree.XMLSchema(file=schema)
)
if os.path.exists(filename):
try:
return etree.parse(filename, parser)
except etree.XMLSyntaxError:
error("Syntax error in %s", filename)
raise FileNotFoundError()
else:
raise FileNotFoundError()
