Teach the notes lookup code to parse notes trees with various fanout schemes

diff --git a/cache.h b/cache.h
index 1a6412dfd65e6a2cc733f07a335d8b6b88b4264e..4f0ddeca11b4bdfe9ee8ee5171e19094acf42a05 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -372,6 +372,8 @@ static inline enum object_type object_type(unsigned int mode)
 #define GITATTRIBUTES_FILE ".gitattributes"
 #define INFOATTRIBUTES_FILE "info/attributes"
 #define ATTRIBUTE_MACRO_PREFIX "[attr]"
+#define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF"
+#define GIT_NOTES_DEFAULT_REF "refs/notes/commits"
 
 extern int is_bare_repository_cfg;
 extern int is_bare_repository(void);
@@ -489,6 +491,7 @@ struct lock_file {
 };
 #define LOCK_DIE_ON_ERROR 1
 #define LOCK_NODEREF 2
+extern int unable_to_lock_error(const char *path, int err);
 extern NORETURN void unable_to_lock_index_die(const char *path, int err);
 extern int hold_lock_file_for_update(struct lock_file *, const char *path, int);
 extern int hold_lock_file_for_append(struct lock_file *, const char *path, int);
@@ -566,6 +569,8 @@ enum object_creation_mode {
 
 extern enum object_creation_mode object_creation_mode;
 
+extern char *notes_ref_name;
+
 extern int grafts_replace_parents;
 
 #define GIT_REPO_VERSION 0