On Sun, Apr 25, 2010 at 10:11:37PM -0500, Jonathan Nieder wrote:
> Here’s an alternative implementation of the more controversial half of
> your patch, for your amusement. The big downside is that it requires
> one to specify --abbrev-commit before the --format option.
That is not insurmountable, as we could just check after the parsing
stage. But there is a worse problem:
> +static void abbreviate_commit_hashes(char *fmt)
> +{
> + char *p;
> + for (p = fmt; p != NULL; p = strchr(p + 1, '%')) {
> + p++;
> + switch (*p) {
> + case 'H':
> + *p = 'h';
> + break;
> + case 'P':
> + *p = 'p';
> + break;
> + case 'T':
> + default:
> + break;
> + }
> + }
> +}
You parse '%%H' incorrectly. I would really rather not see ad-hoc
parsers for the format like this, but rather use or extend strbuf_expand
as appropriate. That would make things less painful if and when we
decide to tweak the syntax.
I think a lot of this might be more pleasant if we had some extensible
and backwards compatible syntax like %(placeholder, arg, ...) and could
do "%(H, abbrev=always)" or "%(H, abbrev=config)". Yeah, it's long, but
it is readable and explicit.
-Peff
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