Re: [PATCH v7 4/6] verify-tag: prepare verify_tag for libification

[Eric Sunshine <sunshine@sunshineco.com>]

On Tue, Apr 19, 2016 at 1:47 PM,  <santiago@nyu.edu> wrote:
> The current interface of verify_tag() resolves reference names to SHA1,
> however, the plan is to make this functionality public and the current
> interface is cumbersome for callers: they are expected to supply the
> textual representation of a sha1/refname. In many cases, this requires
> them to turn the sha1 to hex representation, just to be converted back
> inside verify_tag.
>
> Add a SHA1 parameter to use instead of the name parameter, and rename
> the name parameter to "name_to_report" for reporting purposes only.

I'd have probably called this "display_name", but then I suppose it
suffers the same issue Junio mentioned previously about it sounding
like a boolean. Anyhow, as long as Junio is happy with it, that's what
matters.

This version of the patch is nicely improved. One nit below.

> Signed-off-by: Santiago Torres <santiago@nyu.edu>
> ---
> diff --git a/builtin/verify-tag.c b/builtin/verify-tag.c
> @@ -80,6 +83,8 @@ int cmd_verify_tag(int argc, const char **argv, const char *prefix)
>  {
>         int i = 1, verbose = 0, had_error = 0;
>         unsigned flags = 0;
> +       unsigned char sha1[20];
> +       const char *name;

Mentioned previously[1]: These two declarations could be moved inside
the while-loop scope (below).

[1]: http://article.gmane.org/gmane.comp.version-control.git/291813

>         const struct option verify_tag_options[] = {
>                 OPT__VERBOSE(&verbose, N_("print tag contents")),
>                 OPT_BIT(0, "raw", &flags, N_("print raw gpg status output"), GPG_VERIFY_RAW),
> @@ -96,8 +101,12 @@ int cmd_verify_tag(int argc, const char **argv, const char *prefix)
>         if (verbose)
>                 flags |= GPG_VERIFY_VERBOSE;
>
> -       while (i < argc)
> -               if (verify_tag(argv[i++], flags))
> +       while (i < argc) {
> +               name = argv[i++];
> +               if (get_sha1(name, sha1))
> +                       had_error = !!error("tag '%s' not found.", name);
> +               else if (verify_tag(sha1, name, flags))
>                         had_error = 1;
> +       }
>         return had_error;
>  }
> --
> 2.8.0