pathspec: allow to ignore SKIP_WORKTREE entries on index matching

Add a new enum parameter to `add_pathspec_matches_against_index()` and
`find_pathspecs_matching_against_index()`, allowing callers to specify
whether these function should attempt to match SKIP_WORKTREE entries or
not. This will be used in a future patch to make `git add` display a
warning when it is asked to update SKIP_WORKTREE entries.

Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/pathspec.h b/pathspec.h
index 454ce364fa..0feb8e9f67 100644
--- a/pathspec.h
+++ b/pathspec.h
@@ -149,11 +149,17 @@ static inline int ps_strcmp(const struct pathspec_item *item,
 		return strcmp(s1, s2);
 }
 
+enum ps_skip_worktree_action {
+  PS_HEED_SKIP_WORKTREE = 0,
+  PS_IGNORE_SKIP_WORKTREE = 1
+};
 void add_pathspec_matches_against_index(const struct pathspec *pathspec,
 					const struct index_state *istate,
-					char *seen);
+					char *seen,
+					enum ps_skip_worktree_action sw_action);
 char *find_pathspecs_matching_against_index(const struct pathspec *pathspec,
-					    const struct index_state *istate);
+					    const struct index_state *istate,
+					    enum ps_skip_worktree_action sw_action);
 int match_pathspec_attrs(const struct index_state *istate,
 			 const char *name, int namelen,
 			 const struct pathspec_item *item);