Re: [PATCHv9 3/6] fetching submodules: respect `submodule.fetchJobs` config option

[Junio C Hamano <gitster@pobox.com>]

Stefan Beller <sbeller@google.com> writes:

>>         int git_config_nonnegative_int(const char *name, const char *value)
>>         {
>>                 int ret;
>>                 if (!git_parse_nonnegative_int(value, &ret))
>>                         die_bad_number(name, value);
>>                 return ret;
>>         }
>>
>> allowing
>>
>>                 parallel_jobs = git_config_nonnegative_int(var, val);
>>                 return 0;
>
> And I thought we wanted to prevent inventing yet another helper?

I actually do not think we mind git_parse_int(), git_parse_long(),
and git_parse_uint() to complement git_parse_ulong().  I am not
enthused by the "nonnegative-int" thing, though.

Do we have enough cases where we want to use signed type and reserve
negative value for our own internal use (e.g. "unspecified yet")?
If not, a very generic git_config_int() with a caller specific range
check wouldn't look _so_ bad.

	parallel_jobs = git_config_int(var, val);
        if (parallel_jobs < 0)
	     	some corrective action;
	return 0;