Re: [PATCH 3/3] diff-index: pass pathspec down to unpack-trees machinery

This seems to fix this.

diff --git a/unpack-trees.c b/unpack-trees.c
index 7c9ecf6..5cf58b6 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c

@@ -1042,6 +1042,7 @@ int unpack_trees(unsigned len, struct tree_desc

*t, struct unpack_trees_options
                info.data = o;
                info.show_all_errors = o->show_all_errors;
                info.pathspec = o->pathspec;
+               info.pathspec->recursive = 1;

                if (o->prefix) {
                        /*

Still scratching my head why this flag is zero by default, which would
affect all other places.

... Or perhaps the right fix would be this
instead

diff --git a/tree-walk.c b/tree-walk.c
index f82dba6..0345938 100644
--- a/tree-walk.c
+++ b/tree-walk.c

@@ -634,7 +634,7 @@ enum interesting tree_entry_interesting(const

struct name_entry *entry,
                                 * Match all directories. We'll try to
                                 * match files later on.
                                 */
-                               if (ps->recursive && S_ISDIR(entry->mode))
+                               if (S_ISDIR(entry->mode))
                                        return entry_interesting;
                        }

@@ -662,7 +662,7 @@ match_wildcards:
                 * Match all directories. We'll try to match files
                 * later on.
                 */
-               if (ps->recursive && S_ISDIR(entry->mode))
+               if (S_ISDIR(entry->mode))
                        return entry_interesting;
        }
        return never_interesting; /* No matches */