[PATCH 1/3] dir.c: use the cache_* macro to access the current index

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These codepaths always start from the_index and use index_*
functions, but there is no reason to do so.  Use the compatibility
cache_* macro to access the current in-core index like everybody
else.

While at it, fix typo in the comment for a function to check if a
path within a directory appears in the index.

Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
 dir.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/dir.c b/dir.c
index a5926fb..2f82cd1 100644
--- a/dir.c
+++ b/dir.c
@@ -472,15 +472,14 @@ static void *read_skip_worktree_file_from_index(const char *path, size_t *size)
 	unsigned long sz;
 	enum object_type type;
 	void *data;
-	struct index_state *istate = &the_index;
 
 	len = strlen(path);
-	pos = index_name_pos(istate, path, len);
+	pos = cache_name_pos(path, len);
 	if (pos < 0)
 		return NULL;
-	if (!ce_skip_worktree(istate->cache[pos]))
+	if (!ce_skip_worktree(active_cache[pos]))
 		return NULL;
-	data = read_sha1_file(istate->cache[pos]->sha1, &type, &sz);
+	data = read_sha1_file(active_cache[pos]->sha1, &type, &sz);
 	if (!data || type != OBJ_BLOB) {
 		free(data);
 		return NULL;
@@ -924,13 +923,13 @@ enum exist_status {
 };
 
 /*
- * Do not use the alphabetically stored index to look up
+ * Do not use the alphabetically sorted index to look up
  * the directory name; instead, use the case insensitive
  * name hash.
  */
 static enum exist_status directory_exists_in_index_icase(const char *dirname, int len)
 {
-	struct cache_entry *ce = index_name_exists(&the_index, dirname, len + 1, ignore_case);
+	struct cache_entry *ce = cache_name_exists(dirname, len + 1, ignore_case);
 	unsigned char endchar;
 
 	if (!ce)
-- 
1.8.4-rc3-232-ga8053f8

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