do not write null sha1s to on-disk index

diff --git a/list-objects.c b/list-objects.c
index 39d80c01753527e45716ec762beeb891dfc7d28d..3dd4a960190a1b0016b26dec9187692111b73e3f 100644 (file)
--- a/list-objects.c
+++ b/list-objects.c
@@ -71,7 +71,8 @@ static void process_tree(struct rev_info *revs,
        struct tree_desc desc;
        struct name_entry entry;
        struct name_path me;
-       int match = revs->diffopt.pathspec.nr == 0 ? 2 : 0;
+       enum interesting match = revs->diffopt.pathspec.nr == 0 ?
+               all_entries_interesting: entry_not_interesting;
        int baselen = base->len;
 
        if (!revs->tree_objects)
@@ -97,12 +98,12 @@ static void process_tree(struct rev_info *revs,
        init_tree_desc(&desc, tree->buffer, tree->size);
 
        while (tree_entry(&desc, &entry)) {
-               if (match != 2) {
+               if (match != all_entries_interesting) {
                        match = tree_entry_interesting(&entry, base, 0,
                                                       &revs->diffopt.pathspec);
-                       if (match < 0)
+                       if (match == all_entries_not_interesting)
                                break;
-                       if (match == 0)
+                       if (match == entry_not_interesting)
                                continue;
                }