clean: only lstat files in pathspec

Even though "git clean" takes pathspec to limit the part of the
working tree to be cleaned, it checked the paths it encounters
during its directory traversal with lstat(2), before checking if
the path is within the pathspec.

Ignore paths outside pathspec and proceed without checking with
lstat(2).  Even if such a path is unreadable due to e.g. EPERM,
"git clean" should not care.

Signed-off-by: David Turner <dturner@twopensource.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/clean.c b/builtin/clean.c
index 1032563..3c1f4b0 100644 (file)
--- a/builtin/clean.c
+++ b/builtin/clean.c
@@ -940,15 +940,15 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
                if (!cache_name_is_other(ent->name, ent->len))
                        continue;
 
-               if (lstat(ent->name, &st))
-                       die_errno("Cannot lstat '%s'", ent->name);
-
                if (pathspec.nr)
                        matches = dir_path_match(ent, &pathspec, 0, NULL);
 
                if (pathspec.nr && !matches)
                        continue;
 
+               if (lstat(ent->name, &st))
+                       die_errno("Cannot lstat '%s'", ent->name);
+
                if (S_ISDIR(st.st_mode) && !remove_directories &&
                    matches != MATCHED_EXACTLY)
                        continue;