Re: [PATCH v4 04/17] trailer: process command line trailer arguments

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On Thu, Jan 30, 2014 at 1:49 AM, Christian Couder
<chriscool@xxxxxxxxxxxxx> wrote:
> This patch parses the trailer command line arguments
> and put the result into an arg_tok doubly linked
> list.
>
> Signed-off-by: Christian Couder <chriscool@xxxxxxxxxxxxx>
> ---
> diff --git a/trailer.c b/trailer.c
> index d979a0f..f48fd94 100644
> --- a/trailer.c
> +++ b/trailer.c
> @@ -362,3 +362,80 @@ static int git_trailer_config(const char *conf_key, const char *value, void *cb)
>         }
>         return 0;
>  }
> +
> +static void parse_trailer(struct strbuf *tok, struct strbuf *val, const char *trailer)
> +{
> +       char *end = strchr(trailer, '=');

This can be 'const char *'.

> +       if (!end)
> +               end = strchr(trailer, ':');
> +       if (end) {
> +               strbuf_add(tok, trailer, end - trailer);
> +               strbuf_trim(tok);
> +               strbuf_addstr(val, end + 1);
> +               strbuf_trim(val);
> +       } else {
> +               strbuf_addstr(tok, trailer);
> +               strbuf_trim(tok);
> +       }
> +}
> +
> +static struct trailer_item *create_trailer_item(const char *string)
> +{
> +       struct strbuf tok = STRBUF_INIT;
> +       struct strbuf val = STRBUF_INIT;
> +       struct trailer_item *new;
> +       struct trailer_item *item;
> +       int tok_alnum_len;
> +
> +       parse_trailer(&tok, &val, string);
> +
> +       tok_alnum_len = alnum_len(tok.buf, tok.len);
> +
> +       /* Lookup if the token matches something in the config */
> +       for (item = first_conf_item; item; item = item->next) {
> +               if (!strncasecmp(tok.buf, item->conf->key, tok_alnum_len) ||
> +                   !strncasecmp(tok.buf, item->conf->name, tok_alnum_len)) {
> +                       new = xcalloc(sizeof(struct trailer_item), 1);

sizeof(*new) would be more future-proof.

> +                       new->conf = item->conf;
> +                       new->token = xstrdup(item->conf->key);
> +                       new->value = strbuf_detach(&val, NULL);
> +                       strbuf_release(&tok);
> +                       return new;
> +               }
> +       }
> +
> +       new = xcalloc(sizeof(struct trailer_item), 1);

Ditto.

> +       new->conf = xcalloc(sizeof(struct conf_info), 1);
> +       new->token = strbuf_detach(&tok, NULL);
> +       new->value = strbuf_detach(&val, NULL);
> +
> +       return new;
> +}
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