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-rw-r--r--builtin-diff.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/builtin-diff.c b/builtin-diff.c
index 7d5ad62..dca2232 100644
--- a/builtin-diff.c
+++ b/builtin-diff.c
@@ -347,7 +347,15 @@ int cmd_diff(int argc, const char **argv, char **envp)
return builtin_diff_index(&rev, argc, argv);
else if (ents == 2)
return builtin_diff_tree(&rev, argc, argv, ent);
+ else if ((ents == 3) && (ent[0].item->flags & UNINTERESTING)) {
+ /* diff A...B where there is one sane merge base between
+ * A and B. We have ent[0] == merge-base, ent[1] == A,
+ * and ent[2] == B. Show diff between the base and B.
+ */
+ return builtin_diff_tree(&rev, argc, argv, ent);
+ }
else
- return builtin_diff_combined(&rev, argc, argv, ent, ents);
+ return builtin_diff_combined(&rev, argc, argv,
+ ent, ents);
usage(builtin_diff_usage);
}