From 5290d4513496d89f84570985a0e02e97dff477ff Mon Sep 17 00:00:00 2001 From: Jeff King Date: Sat, 1 Feb 2020 06:39:22 -0500 Subject: [PATCH] tree-walk.c: break circular dependency with unpack-trees The unpack-trees API depends on the tree-walk API. But we've recently introduced a dependency in tree-walk.c on MAX_UNPACK_TREES, which doesn't otherwise care about unpack-trees at all. Let's break that dependency by reversing the constants: we'll introduce a new MAX_TRAVERSE_TREES which belongs to the tree-walk API. And then we can define MAX_UNPACK_TREES in terms of that (since unpack-trees cannot possibly work with more trees than it can traverse at once via tree-walk). The value for both will remain at 8. This is somewhat arbitrary and probably more than is necessary, per ca885a4fe6 (read-tree() and unpack_trees(): use consistent limit, 2008-03-13), but there's not really any pressing need to reduce it. Suggested-by: Elijah Newren Signed-off-by: Jeff King Acked-by: Elijah Newren Signed-off-by: Junio C Hamano --- tree-walk.c | 3 +-- tree-walk.h | 2 ++ unpack-trees.h | 2 +- 3 files changed, 4 insertions(+), 3 deletions(-) diff --git a/tree-walk.c b/tree-walk.c index 3093cf7098b..bb0ad34c545 100644 --- a/tree-walk.c +++ b/tree-walk.c @@ -1,6 +1,5 @@ #include "cache.h" #include "tree-walk.h" -#include "unpack-trees.h" #include "dir.h" #include "object-store.h" #include "tree.h" @@ -410,7 +409,7 @@ int traverse_trees(struct index_state *istate, struct traverse_info *info) { int error = 0; - struct name_entry entry[MAX_UNPACK_TREES]; + struct name_entry entry[MAX_TRAVERSE_TREES]; int i; struct tree_desc_x tx[ARRAY_SIZE(entry)]; struct strbuf base = STRBUF_INIT; diff --git a/tree-walk.h b/tree-walk.h index 826396c8edc..a5058469e9b 100644 --- a/tree-walk.h +++ b/tree-walk.h @@ -3,6 +3,8 @@ #include "cache.h" +#define MAX_TRAVERSE_TREES 8 + /** * The tree walking API is used to traverse and inspect trees. */ diff --git a/unpack-trees.h b/unpack-trees.h index ca94a421a5d..ae1557fb804 100644 --- a/unpack-trees.h +++ b/unpack-trees.h @@ -6,7 +6,7 @@ #include "string-list.h" #include "tree-walk.h" -#define MAX_UNPACK_TREES 8 +#define MAX_UNPACK_TREES MAX_TRAVERSE_TREES struct cache_entry; struct unpack_trees_options;