Make "rev-tree" able to read its own output again from the cache.

diff --git a/cache.h b/cache.h
index 2581117a185fe5cdce38612d82a737ef0636d433..07598d469a15db2c10d36e627c0e77dea065b8ef 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -64,7 +64,7 @@ struct cache_entry **active_cache;
 unsigned int active_nr, active_alloc;
 
 #define DB_ENVIRONMENT "SHA1_FILE_DIRECTORY"
-#define DEFAULT_DB_ENVIRONMENT ".dircache/objects"
+#define DEFAULT_DB_ENVIRONMENT ".git/objects"
 
 #define cache_entry_size(len) ((offsetof(struct cache_entry,name) + (len) + 8) & ~7)
 #define ce_size(ce) cache_entry_size((ce)->namelen)
@@ -75,7 +75,7 @@ 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);
+extern int add_cache_entry(struct cache_entry *ce, int ok_to_add);
 extern int remove_file_from_cache(char *path);
 extern int cache_match_stat(struct cache_entry *ce, struct stat *st);
 
@@ -87,16 +87,16 @@ extern int cache_match_stat(struct cache_entry *ce, struct stat *st);
 #define DATA_CHANGED    0x0020
 
 /* Return a statically allocated filename matching the sha1 signature */
-extern char *sha1_file_name(unsigned char *sha1);
+extern char *sha1_file_name(const unsigned char *sha1);
 
 /* Write a memory buffer out to the sha file */
-extern int write_sha1_buffer(unsigned char *sha1, void *buf, unsigned int size);
+extern int write_sha1_buffer(const unsigned char *sha1, void *buf, unsigned int size);
 
 /* Read and unpack a sha1 file into memory, write memory to a sha1 file */
-extern void * map_sha1_file(unsigned char *sha1, unsigned long *size);
+extern void * map_sha1_file(const unsigned char *sha1, unsigned long *size);
 extern void * unpack_sha1_file(void *map, unsigned long mapsize, char *type, unsigned long *size);
-extern void * read_sha1_file(unsigned char *sha1, char *type, unsigned long *size);
-extern int write_sha1_file(char *buf, unsigned len);
+extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size);
+extern int write_sha1_file(char *buf, unsigned len, unsigned char *return_sha1);
 extern int check_sha1_signature(unsigned char *sha1, void *buf, unsigned long size);
 
 /* Convert to/from hex/sha1 representation */
@@ -104,6 +104,7 @@ extern int get_sha1_hex(const char *hex, unsigned char *sha1);
 extern char *sha1_to_hex(const unsigned char *sha1);   /* static buffer result! */
 
 /* General helper functions */
-extern void usage(const char *err);
+extern void usage(const char *err, ...);
+extern int cache_name_compare(const char *name1, int len1, const char *name2, int len2);
 
 #endif /* CACHE_H */