Re: [PATCH v8 5/6] verify-tag: move tag verification code to tag.c

> The PGP verification routine for tags could be accessed by other modules
> that require to do so.
>
> Publish the verify_tag function in tag.c and rename it to gpg_verify_tag
> so it does not conflict with builtin/mktag's static function.
>
> Helped-by: Junio C Hamano <gitster@pobox.com>
> Signed-off-by: Santiago Torres <santiago@nyu.edu>
> ---
> diff --git a/tag.c b/tag.c
> @@ -6,6 +6,59 @@
> +int gpg_verify_tag(const unsigned char *sha1, const char *name_to_report,

> +               unsigned flags)
> +{
> +       enum object_type type;
> +       char *buf;
> +       unsigned long size;
> +       int ret;
> +
> +       type = sha1_object_info(sha1, NULL);
> +       if (type != OBJ_TAG)
> +               return error("%s: cannot verify a non-tag object of type %s.",
> +                               name_to_report ?
> +                               name_to_report :
> +                               find_unique_abbrev(sha1, DEFAULT_ABBREV),
> +                               typename(type));
> +
> +       buf = read_sha1_file(sha1, &type, &size);
> +       if (!buf)
> +               return error("%s: unable to read file.",
> +                               name_to_report ?
> +                               name_to_report :
> +                               find_unique_abbrev(sha1, DEFAULT_ABBREV));
> +
> +       ret = run_gpg_verify(buf, size, flags);
> +
> +       free(buf);
> +       return ret;
> +}