Merge branch 'en/dir-traversal'

"git clean" and "git ls-files -i" had confusion around working on
or showing ignored paths inside an ignored directory, which has
been corrected.

* en/dir-traversal:
  dir: introduce readdir_skip_dot_and_dotdot() helper
  dir: update stale description of treat_directory()
  dir: traverse into untracked directories if they may have ignored subfiles
  dir: avoid unnecessary traversal into ignored directory
  t3001, t7300: add testcase showcasing missed directory traversal
  t7300: add testcase showing unnecessary traversal into ignored directory
  ls-files: error out on -i unless -o or -c are specified
  dir: report number of visited directories and paths with trace2
  dir: convert trace calls to trace2 equivalents

1 files changed, 6 insertions, 0 deletions

diff --git a/dir.h b/dir.h
index 35963f9..e3db9b9 100644
--- a/dir.h
+++ b/dir.h
@@ -336,8 +336,14 @@ struct dir_struct {
 	struct oid_stat ss_info_exclude;
 	struct oid_stat ss_excludes_file;
 	unsigned unmanaged_exclude_files;
+
+	/* Stats about the traversal */
+	unsigned visited_paths;
+	unsigned visited_directories;
 };
 
+struct dirent *readdir_skip_dot_and_dotdot(DIR *dirp);
+
 /*Count the number of slashes for string s*/
 int count_slashes(const char *s);