diff-lib: allow ita entries treated as "not yet exist in index"

diff --git a/diff-lib.c b/diff-lib.c
index 3007c8524c9b8017cb3dc3f7460e020b0d1aafd7..27f12282b367b3fe9a6cb04e32e4627f00cd42f3 100644 (file)
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -214,6 +214,12 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
                                               !is_null_oid(&ce->oid),
                                               ce->name, 0);
                                continue;
+                       } else if (revs->diffopt.ita_invisible_in_index &&
+                                  ce_intent_to_add(ce)) {
+                               diff_addremove(&revs->diffopt, '+', ce->ce_mode,
+                                              EMPTY_BLOB_SHA1_BIN, 0,
+                                              ce->name, 0);
+                               continue;
                        }
 
                        changed = match_stat_with_submodule(&revs->diffopt, ce, &st,
@@ -379,6 +385,14 @@ static void do_oneway_diff(struct unpack_trees_options *o,
        struct rev_info *revs = o->unpack_data;
        int match_missing, cached;
 
+       /* i-t-a entries do not actually exist in the index */
+       if (revs->diffopt.ita_invisible_in_index &&
+           idx && ce_intent_to_add(idx)) {
+               idx = NULL;
+               if (!tree)
+                       return; /* nothing to diff.. */
+       }
+
        /* if the entry is not checked out, don't examine work tree */
        cached = o->index_only ||
                (idx && ((idx->ce_flags & CE_VALID) || ce_skip_worktree(idx)));