Re: [PATCH v3/GSoC 1/5] path.c: implement strbuf_mkpath()

> There were already `mkpath`, `mkpathdup` and `mksnpath` for build
> filename, but lacked a version of `strbuf_` just like `strbuf_git_path`.
>
> It is convenient to build a path and manipulate the result later with
> strbuf.
>
> Signed-off-by: Hui Yiqun <huiyiqun@gmail.com>
> ---
>  cache.h |  2 ++
>  path.c  | 21 +++++++++++++++++----
>  2 files changed, 19 insertions(+), 4 deletions(-)
>
> diff --git a/cache.h b/cache.h
> index b829410..ef843c1 100644
> --- a/cache.h
> +++ b/cache.h
> @@ -781,6 +781,8 @@ extern char *git_pathdup(const char *fmt, ...)
>         __attribute__((format (printf, 1, 2)));
>  extern char *mkpathdup(const char *fmt, ...)
>         __attribute__((format (printf, 1, 2)));
> +extern void strbuf_mkpath(struct strbuf *sb, const char *fmt, ...)
> +       __attribute__((format (printf, 2, 3)));
>  extern char *git_pathdup_submodule(const char *path, const char *fmt, ...)
>         __attribute__((format (printf, 2, 3)));
>
> diff --git a/path.c b/path.c
> index 8b7e168..699af68 100644
> --- a/path.c
> +++ b/path.c
> @@ -433,14 +433,19 @@ char *git_pathdup(const char *fmt, ...)
>         return strbuf_detach(&path, NULL);
>  }
>
> +static void do_mkpath(struct strbuf *buf, const char *fmt, va_list args)
> +{
> +       strbuf_vaddf(buf, fmt, args);
> +       strbuf_cleanup_path(buf);
> +}
> +
>  char *mkpathdup(const char *fmt, ...)
>  {
>         struct strbuf sb = STRBUF_INIT;
>         va_list args;
>         va_start(args, fmt);
> -       strbuf_vaddf(&sb, fmt, args);
> +       do_mkpath(&sb, fmt, args);
>         va_end(args);
> -       strbuf_cleanup_path(&sb);
>         return strbuf_detach(&sb, NULL);
>  }
>
> @@ -449,9 +454,17 @@ const char *mkpath(const char *fmt, ...)
>         va_list args;
>         struct strbuf *pathname = get_pathname();
>         va_start(args, fmt);
> -       strbuf_vaddf(pathname, fmt, args);
> +       do_mkpath(pathname, fmt, args);
> +       va_end(args);
> +       return pathname->buf;
> +}
> +
> +void strbuf_mkpath(struct strbuf *buf, const char *fmt, ...)
> +{
> +       va_list args;
> +       va_start(args, fmt);
> +       do_mkpath(buf, fmt, args);
>         va_end(args);
> -       return cleanup_path(pathname->buf);
>  }
>
>  static void do_submodule_path(struct strbuf *buf, const char *path,
> --
> 2.7.4
>