@@ -17,12 +17,13 @@ def currency_code(s):
def currency_list(s):
return [currency_code(code.strip()) for code in s.split(',')]
class Configuration:
DATE_SEPS = frozenset('.-/ ')
DEFAULT_CONFIG_PATH = pathlib.Path(HOME_PATH, '.config', 'oxrlib.ini')
NO_DENOMINATION = object()
PREPOSITIONS = frozenset(['in', 'to', 'into'])
TODAY = datetime.date.today()
def __init__(self, arglist):
argparser = self._build_argparser()
self.error = argparser.error
@@ -94,12 +95,23 @@ class Configuration:
)
hist_parser.add_argument(
'--no-ledger',
action='store_false', dest='ledger',
help="Turn off an earlier --ledger setting",
'--denomination',
metavar='CODE', type=currency_code,
help="In Ledger conversion output, always show rates to convert "
"to this currency",
'--no-denomination',
dest='denomination', action='store_const', const=self.NO_DENOMINATION,
help="Turn off an earlier --denomination setting",
'--signed-currency', '--sign-currency',
type=currency_code, action='append', dest='signed_currencies',
metavar='CODE',
help="In Ledger output, use a sign for this currency if known. "
"Can be specified multiple times.",
@@ -129,20 +141,22 @@ class Configuration:
return prog_parser
def _build_conffile(self):
return configparser.ConfigParser()
def _read_from_conffile(self, argname, sectionname, fallback, convert_to=None,
confname=None, getter='get', unset=None):
confname=None, getter='get', unset=None,
*, convert_fallback=False):
if getattr(self.args, argname) is not unset:
return
elif confname is None:
confname = argname
get_method = getattr(self.conffile, getter)
value = get_method(sectionname, confname, fallback=fallback)
if convert_to is not None:
if (convert_to is not None
and (value is not fallback or convert_fallback)):
value = self._convert_or_error(convert_to, value, confname)
setattr(self.args, argname, value)
def _convert_or_error(self, argtype, s_value, argname=None, typename=None):
try:
return argtype(s_value)
@@ -159,13 +173,18 @@ class Configuration:
def _post_hook_historical(self):
year = self.args.date.year
if year < 100:
# Don't let the user specify ambiguous dates.
self.error("historical data not available from year {}".format(year))
self._read_from_conffile('base', 'Historical', 'USD', currency_code)
self._read_from_conffile('signed_currencies', 'Historical', self.args.base, currency_list)
if self.args.denomination is self.NO_DENOMINATION:
self.args.denomination = None
else:
self._read_from_conffile('denomination', 'Historical', None, currency_code)
self._read_from_conffile('signed_currencies', 'Historical', self.args.base,
currency_list, convert_fallback=True)
self._read_from_conffile('ledger', 'Historical', False, getter='getboolean')
self.args.to_currency = self.args.base
if self.args.word4 and (self.args.word3.lower() in self.PREPOSITIONS):
self.args.word3 = self.args.word4
if self.args.word1 is None:
pass