python-compute/pars.py
2023-11-09 01:17:50 +03:00

35 lines
1010 B
Python

import re
def _split_unit(val: str) -> dict | None:
match = re.match(r'([0-9]+)([a-z]+)', val, re.I)
if match:
return {
'value': match.groups()[0],
'unit': match.groups()[1],
}
return None
def _parse_complex_arg(arg: str) -> dict:
# key=value --> {'key': 'value'}
if re.match(r'.+=.+', arg):
key, val = arg.split('=')
# system --> {'is_system': True}
# ro --> {'is_readonly': True}
elif re.match(r'^[a-z0-9_\.\-]+$', arg, re.I):
key = 'is_' + arg.replace('ro', 'readonly')
val = True
else:
raise ValueError('Invalid argument pattern')
# key=15GiB --> {'key': {'value': 15, 'unit': 'GiB'}}
if not isinstance(val, bool):
val = _split_unit(val) or val
return {key: val}
print(_parse_complex_arg('source=/volumes/50c4410b-2ef0-4ffd-a2e5-04f0212772d4.qcow2'))
print(_parse_complex_arg('capacity=15GiB'))
print(_parse_complex_arg('system'))
print(_parse_complex_arg('cpu.cores=8'))