revision.c: refactor add_index_objects_to_pending()

The core code is factored out and take 'struct index_state *' instead so
that we can reuse it to add objects from index files other than .git/index
in the next patch.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/revision.c b/revision.c
index aa3b946..6c46ad6 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -1262,13 +1262,13 @@ static void add_cache_tree(struct cache_tree *it, struct rev_info *revs,
 
 }
 
-void add_index_objects_to_pending(struct rev_info *revs, unsigned flags)
+static void do_add_index_objects_to_pending(struct rev_info *revs,
+                                           struct index_state *istate)
 {
        int i;
 
-       read_cache();
-       for (i = 0; i < active_nr; i++) {
-               struct cache_entry *ce = active_cache[i];
+       for (i = 0; i < istate->cache_nr; i++) {
+               struct cache_entry *ce = istate->cache[i];
                struct blob *blob;
 
                if (S_ISGITLINK(ce->ce_mode))
@@ -1281,13 +1281,19 @@ void add_index_objects_to_pending(struct rev_info *revs, unsigned flags)
                                             ce->ce_mode, ce->name);
        }
 
-       if (active_cache_tree) {
+       if (istate->cache_tree) {
                struct strbuf path = STRBUF_INIT;
-               add_cache_tree(active_cache_tree, revs, &path);
+               add_cache_tree(istate->cache_tree, revs, &path);
                strbuf_release(&path);
        }
 }
 
+void add_index_objects_to_pending(struct rev_info *revs, unsigned int flags)
+{
+       read_cache();
+       do_add_index_objects_to_pending(revs, &the_index);
+}
+
 static int add_parents_only(struct rev_info *revs, const char *arg_, int flags,
                            int exclude_parent)
 {