On Mon, Aug 31, 2015 at 3:19 PM, Stefan Beller <sbel...@google.com> wrote:
> This implements the helper `module_name` in C instead of shell,
> yielding a nice performance boost.
>
> Signed-off-by: Stefan Beller <sbel...@google.com>
> Signed-off-by: Junio C Hamano <gits...@pobox.com>
> ---
> diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
> index beaab7d..c8f7e0c 100644
> --- a/builtin/submodule--helper.c
> +++ b/builtin/submodule--helper.c
> @@ -101,6 +104,26 @@ static int module_list(int argc, const char **argv,
> const char *prefix)
> +static int module_name(int argc, const char **argv, const char *prefix)
> +{
> + const char *name;
> + const struct submodule *sub;
> +
> + if (argc != 1)
> + usage("git submodule--helper module_name <path>\n");
> +
> + gitmodules_config();
> + sub = submodule_from_path(null_sha1, argv[0]);
> +
> + if (!sub)
> + die("No submodule mapping found in .gitmodules for path
> '%s'", argv[0]);
In the original shell code, this error message went through
eval_gettext(), so don't you want:
die(_("No ..."), ...);
?
> + name = sub->name;
> + printf("%s\n", name);
Why the useless assignment to 'name'? Instead:
printf("%s\n", sub->name);
> + return 0;
> +}
> +
> int cmd_submodule__helper(int argc, const char **argv, const char *prefix)
> {
> if (argc < 2)
> @@ -109,6 +132,9 @@ int cmd_submodule__helper(int argc, const char **argv,
> const char *prefix)
> if (!strcmp(argv[1], "module_list"))
> return module_list(argc - 1, argv + 1, prefix);
>
> + if (!strcmp(argv[1], "module_name"))
> + return module_name(argc - 2, argv + 2, prefix);
> +
> usage:
> - usage("git submodule--helper module_list\n");
> + usage("git submodule--helper [module_list | module_name]\n");
> }
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