Re: [GSoC][PATCH 5/6 v2] submodule: port submodule subcommand sync from shell to C

[Christian Couder <christian.couder@gmail.com>]

On Tue, Jun 27, 2017 at 1:11 AM, Prathamesh Chavan <pc44800@gmail.com> wrote:

> +static char *get_up_path(const char *path)
> +{
> +       int i = count_slashes(path);
> +       int l = strlen(path);

Nit: "l" is quite similar to "i" in many fonts, so maybe use "len"
instead of "l", but see below.

> +       struct strbuf sb = STRBUF_INIT;
> +
> +       while (i--)
> +               strbuf_addstr(&sb, "../");

Nit: a regular "for" loop like the following might be easier to review:

for (i = count_slashes(path); i; i--)
        strbuf_addstr(&sb, "../");

> +       /*
> +        *Check if 'path' ends with slash or not
> +        *for having the same output for dir/sub_dir
> +        *and dir/sub_dir/
> +        */
> +       if (!is_dir_sep(path[l - 1]))

As "l" is used only here, maybe we could get rid of this variable
altogether with something like:

      if (!is_dir_sep(path[strlen(path) - 1]))

> +               strbuf_addstr(&sb, "../");
> +
> +       return strbuf_detach(&sb, NULL);
> +}

> +static void sync_submodule(const struct cache_entry *list_item, void *cb_data)
> +{
> +       struct sync_cb *info = cb_data;
> +       const struct submodule *sub;
> +       char *sub_key, *remote_key;
> +       char *sub_origin_url, *super_config_url, *displaypath;
> +       struct strbuf sb = STRBUF_INIT;
> +       struct child_process cp = CHILD_PROCESS_INIT;
> +
> +       if (!is_submodule_initialized(list_item->name))
> +               return;
> +
> +       sub = submodule_from_path(null_sha1, list_item->name);
> +
> +       if (!sub && !sub->url)

I think it should be "(!sub || !sub->url)".

> +               die(_("no url found for submodule path '%s' in .gitmodules"),
> +                     list_item->name);