Samuel Lijin <sxlijin@xxxxxxxxx> writes:
> We consider directories containing only untracked and ignored files to
> be themselves untracked, which in the usual case means we don't have to
> search these directories. This is problematic when we want to collect
> ignored files with DIR_SHOW_IGNORED_TOO, though, so we teach
> read_directory_recursive() to recurse into untracked directories to find
> the ignored files they contain when DIR_SHOW_IGNORED_TOO is set. This
> has the side effect of also collecting all untracked files in untracked
> directories as well.
>
> Signed-off-by: Samuel Lijin <sxlijin@xxxxxxxxx>
> ---
> dir.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/dir.c b/dir.c
> index f451bfa48..6bd0350e9 100644
> --- a/dir.c
> +++ b/dir.c
> @@ -1784,7 +1784,12 @@ static enum path_treatment read_directory_recursive(struct dir_struct *dir,
> dir_state = state;
>
> /* recurse into subdir if instructed by treat_path */
> - if (state == path_recurse) {
> + if ((state == path_recurse) ||
> + ((get_dtype(cdir.de, path.buf, path.len) == DT_DIR) &&
I see a conditional in treat_path() that is prepared to deal with a
NULL in cdir.de; do we know cdir.de is always non-NULL at this point
in the code, or is get_dtype() prepared to see NULL as its first
parameter?
... goes and looks ...
Yes, it falls back to the usual lstat() dance in such a case, so
we'd be OK here.
> + (state == path_untracked) &&
> + (dir->flags & DIR_SHOW_IGNORED_TOO))
If we are told to SHOW_IGNORED_TOO, we'd recurse into an untracked
thing if it is a directory. No other behaviour change.
Isn't get_dtype() potentially slower than other two checks if it
triggers? I am wondering if these three conditions in &&-chain
should be reordered to call get_dtype() the last, i.e.
if ((state == path_recurse) ||
((dir->flags & DIR_SHOW_IGNORED_TOO)) &&
(state == path_untracked) &&
(get_dtype(cdir.de, path.buf, path.len) == DT_DIR)) {
> + )
> + {
It may be just a style, but these new lines are indented overly too
deep. We don't use a lone "{" on a line to open a block, either.
> struct untracked_cache_dir *ud;
> ud = lookup_untracked(dir->untracked, untracked,
> path.buf + baselen,