git-rebase.txt: document incompatible options

diff --git a/commit.h b/commit.h
index 9000895ad912e4fac1aee792429c256f792edc8f..c3af512f8b1b90b3963d0921f7ec0d0a43a2fcbe 100644 (file)
--- a/commit.h
+++ b/commit.h
@@ -9,6 +9,8 @@
 #include "string-list.h"
 #include "pretty.h"
 
+#define COMMIT_NOT_FROM_GRAPH 0xFFFFFFFF
+
 struct commit_list {
        struct commit *item;
        struct commit_list *next;
@@ -17,10 +19,17 @@ struct commit_list {
 struct commit {
        struct object object;
        void *util;
-       unsigned int index;
        timestamp_t date;
        struct commit_list *parents;
-       struct tree *tree;
+
+       /*
+        * If the commit is loaded from the commit-graph file, then this
+        * member may be NULL. Only access it through get_commit_tree()
+        * or get_commit_tree_oid().
+        */
+       struct tree *maybe_tree;
+       uint32_t graph_pos;
+       unsigned int index;
 };
 
 extern int save_commit_buffer;
@@ -99,6 +108,9 @@ void unuse_commit_buffer(const struct commit *, const void *buffer);
  */
 void free_commit_buffer(struct commit *);
 
+struct tree *get_commit_tree(const struct commit *);
+struct object_id *get_commit_tree_oid(const struct commit *);
+
 /*
  * Disassociate any cached object buffer from the commit, but do not free it.
  * The buffer (or NULL, if none) is returned.