Re: [PATCH v2 08/17] ls-files: support --max-depth

> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
> ---
>  Documentation/git-ls-files.txt | 7 +++++++
>  builtin/ls-files.c             | 7 +++++++
>  2 files changed, 14 insertions(+)
>
> diff --git a/Documentation/git-ls-files.txt b/Documentation/git-ls-files.txt
> index cd52461..3c022eb 100644
> --- a/Documentation/git-ls-files.txt
> +++ b/Documentation/git-ls-files.txt
> @@ -162,6 +162,13 @@ a space) at the start of each line:
>         for option syntax.`--column` and `--no-column` without options
>         are equivalent to 'always' and 'never' respectively.
>
> +--max-depth <depth>::

> +       For each <pathspec> given on command line, descend at most <depth>
> +       levels of directories. A negative value means no limit.
> +       This option is ignored if <pathspec> contains active wildcards.
> +       In other words if "a*" matches a directory named "a*",
> +       "*" is matched literally so --max-depth is still effective.

> +
>  \--::
>         Do not interpret any more arguments as options.
>
> diff --git a/builtin/ls-files.c b/builtin/ls-files.c
> index 335d3b0..8eef423 100644
> --- a/builtin/ls-files.c
> +++ b/builtin/ls-files.c
> @@ -503,6 +503,7 @@ static int option_parse_exclude_standard(const struct option *opt,
>  int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
>  {
>         int require_work_tree = 0, show_tag = 0, i;
> +       int max_depth = -1;
>         const char *max_prefix;
>         struct dir_struct dir;
>         struct exclude_list *el;
> @@ -560,6 +561,9 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
>                         N_("pretend that paths removed since <tree-ish> are still present")),
>                 OPT__COLOR(&use_color, N_("show color")),
>                 OPT_COLUMN(0, "column", &colopts, N_("show files in columns")),
> +               { OPTION_INTEGER, 0, "max-depth", &max_depth, N_("depth"),
> +                       N_("descend at most <depth> levels"), PARSE_OPT_NONEG,
> +                       NULL, 1 },
>                 OPT__ABBREV(&abbrev),
>                 OPT_BOOL(0, "debug", &debug_mode, N_("show debugging data")),
>                 OPT_END()
> @@ -624,8 +628,11 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
>
>         parse_pathspec(&pathspec, 0,
>                        PATHSPEC_PREFER_CWD |
> +                      (max_depth != -1 ? PATHSPEC_MAXDEPTH_VALID : 0) |
>                        PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP,
>                        prefix, argv);
> +       pathspec.max_depth = max_depth;
> +       pathspec.recursive = 1;
>
>         /* Find common prefix for all pathspec's */
>         max_prefix = common_prefix(&pathspec);
> --
> 1.9.1.345.ga1a145c