Mercurial > public > mercurial-scm > hg
comparison mercurial/ui.py @ 30926:120682fce099
ui: add a configwith method
This is a long-overdue generalization of the pattern in configint
and configbool.
| author | Bryan O'Sullivan <bryano@fb.com> |
|---|---|
| date | Sun, 12 Feb 2017 21:40:46 -0800 |
| parents | 82f1ef8b4477 |
| children | 8fa3ab6221b9 |
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| 30925:82f1ef8b4477 | 30926:120682fce099 |
|---|---|
| 399 b = util.parsebool(v) | 399 b = util.parsebool(v) |
| 400 if b is None: | 400 if b is None: |
| 401 raise error.ConfigError(_("%s.%s is not a boolean ('%s')") | 401 raise error.ConfigError(_("%s.%s is not a boolean ('%s')") |
| 402 % (section, name, v)) | 402 % (section, name, v)) |
| 403 return b | 403 return b |
| 404 | |
| 405 def configwith(self, convert, section, name, default=None, | |
| 406 desc=None, untrusted=False): | |
| 407 """parse a configuration element with a conversion function | |
| 408 | |
| 409 >>> u = ui(); s = 'foo' | |
| 410 >>> u.setconfig(s, 'float1', '42') | |
| 411 >>> u.configwith(float, s, 'float1') | |
| 412 42.0 | |
| 413 >>> u.setconfig(s, 'float2', '-4.2') | |
| 414 >>> u.configwith(float, s, 'float2') | |
| 415 -4.2 | |
| 416 >>> u.configwith(float, s, 'unknown', 7) | |
| 417 7 | |
| 418 >>> u.setconfig(s, 'invalid', 'somevalue') | |
| 419 >>> u.configwith(float, s, 'invalid') | |
| 420 Traceback (most recent call last): | |
| 421 ... | |
| 422 ConfigError: foo.invalid is not a valid float ('somevalue') | |
| 423 >>> u.configwith(float, s, 'invalid', desc='womble') | |
| 424 Traceback (most recent call last): | |
| 425 ... | |
| 426 ConfigError: foo.invalid is not a valid womble ('somevalue') | |
| 427 """ | |
| 428 | |
| 429 v = self.config(section, name, None, untrusted) | |
| 430 if v is None: | |
| 431 return default | |
| 432 try: | |
| 433 return convert(v) | |
| 434 except ValueError: | |
| 435 if desc is None: | |
| 436 desc = convert.__name__ | |
| 437 raise error.ConfigError(_("%s.%s is not a valid %s ('%s')") | |
| 438 % (section, name, desc, v)) | |
| 404 | 439 |
| 405 def configint(self, section, name, default=None, untrusted=False): | 440 def configint(self, section, name, default=None, untrusted=False): |
| 406 """parse a configuration element as an integer | 441 """parse a configuration element as an integer |
| 407 | 442 |
| 408 >>> u = ui(); s = 'foo' | 443 >>> u = ui(); s = 'foo' |