X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=cache.h;h=ff229ee523d5228c5c1631e0c0a6b50e5ac9dcb6;hb=14242464811bff9e8d1af8eb33367a01480a18d0;hp=9de7709f9ba6435e82e69aad6bbc51794ad2a1bd;hpb=f80cd783c6f346388bbb0a6a15672be99a71f7ed;p=git.git

diff --git a/cache.h b/cache.h
index 9de7709f..ff229ee5 100644
--- a/cache.h
+++ b/cache.h
@@ -31,6 +31,13 @@
 #endif
 
 /*
+ * Environment variables transition.
+ * We accept older names for now but warn.
+ */
+extern char *gitenv_bc(const char *);
+#define gitenv(e) (getenv(e) ? : gitenv_bc(e))
+
+/*
  * Basic data structures for the directory cache
  *
  * NOTE NOTE NOTE! This is all in the native CPU byte format. It's
@@ -96,19 +103,18 @@ static inline unsigned int create_ce_mode(unsigned int mode)
 
 #define cache_entry_size(len) ((offsetof(struct cache_entry,name) + (len) + 8) & ~7)
 
-const char *sha1_file_directory;
-struct cache_entry **active_cache;
-unsigned int active_nr, active_alloc;
-
-#define DB_ENVIRONMENT "SHA1_FILE_DIRECTORY"
-#define DEFAULT_DB_ENVIRONMENT ".git/objects"
-
-#define get_object_directory() (getenv(DB_ENVIRONMENT) ? : DEFAULT_DB_ENVIRONMENT)
+extern struct cache_entry **active_cache;
+extern unsigned int active_nr, active_alloc, active_cache_changed;
 
+#define GIT_DIR_ENVIRONMENT "GIT_DIR"
+#define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
+#define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
 #define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
-#define DEFAULT_INDEX_ENVIRONMENT ".git/index"
 
-#define get_index_file() (getenv(INDEX_ENVIRONMENT) ? : DEFAULT_INDEX_ENVIRONMENT)
+extern char *get_object_directory(void);
+extern char *get_index_file(void);
+
+#define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
 
 #define alloc_nr(x) (((x)+16)*3/2)
 
@@ -116,7 +122,9 @@ unsigned int active_nr, active_alloc;
 extern int read_cache(void);
 extern int write_cache(int newfd, struct cache_entry **cache, int entries);
 extern int cache_name_pos(const char *name, int namelen);
-extern int add_cache_entry(struct cache_entry *ce, int ok_to_add);
+#define ADD_CACHE_OK_TO_ADD 1		/* Ok to add */
+#define ADD_CACHE_OK_TO_REPLACE 2	/* Ok to replace file/directory */
+extern int add_cache_entry(struct cache_entry *ce, int option);
 extern int remove_entry_at(int pos);
 extern int remove_file_from_cache(char *path);
 extern int same_name(struct cache_entry *a, struct cache_entry *b);