From: Junio C Hamano <gitster@pobox.com>
Date: Tue, 02 Aug 2016 17:31:39 GMT
Subject: Re: [RFC/PATCH v11 02/13] bisect: rewrite `check_term_format` shell function in C
Message-ID: <xmqq7fbzf56s.fsf@gitster.mtv.corp.google.com>
In-Reply-To: <0102015640423cc5-691952fa-3726-4132-bcc1-dfa55d4c0895-000000@eu-west-1.amazonses.com>

Pranit Bauva <pranit.bauva@gmail.com> writes:

> +/*
> + * Check whether the string `term` belongs to the set of strings
> + * included in the variable arguments.
> + */
> +static int one_of(const char *term, ...)
> +{
> +	int res = 0;
> +	va_list matches;
> +	const char *match;
> +
> +	va_start(matches, term);
> +	while (!res && (match = va_arg(matches, const char *)))
> +		res = !strcmp(term, match);
> +	va_end(matches);
> +
> +	return res;
> +}

It might be safer to mark this function with LAST_ARG_MUST_BE_NULL,
but because this is static to this function, it may not matter too
much.  Just an observation, not a strong suggestion to change the
patch.

> +static int check_term_format(const char *term, const char *orig_term)
> +{
> +	int res;
> +	char *new_term = xstrfmt("refs/bisect/%s", term);
> +
> +	res = check_refname_format(new_term, 0);
> +	free(new_term);

Yup, that looks much more straight-forward than using a one-time-use
strbuf.