Add "diff-tree" program to show which files have changed between two trees.

[git.git] / cache.h

diff --git a/cache.h b/cache.h
index 864f70b..8d163c0 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -56,7 +56,7 @@ struct cache_entry {
        unsigned int st_size;
        unsigned char sha1[20];
        unsigned short namelen;
-       unsigned char name[0];
+       char name[0];
 };
 
 const char *sha1_file_directory;
@@ -71,8 +71,20 @@ unsigned int active_nr, active_alloc;
 
 #define alloc_nr(x) (((x)+16)*3/2)
 
-/* Initialize the cache information */
+/* Initialize and use the cache information */
 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 remove_file_from_cache(char *path);
+extern int cache_match_stat(struct cache_entry *ce, struct stat *st);
+
+#define MTIME_CHANGED  0x0001
+#define CTIME_CHANGED  0x0002
+#define OWNER_CHANGED  0x0004
+#define MODE_CHANGED    0x0008
+#define INODE_CHANGED   0x0010
+#define DATA_CHANGED    0x0020
 
 /* Return a statically allocated filename matching the sha1 signature */
 extern char *sha1_file_name(unsigned char *sha1);
@@ -88,10 +100,11 @@ extern int write_sha1_file(char *buf, unsigned len);
 extern int check_sha1_signature(unsigned char *sha1, void *buf, unsigned long size);
 
 /* Convert to/from hex/sha1 representation */
-extern int get_sha1_hex(char *hex, unsigned char *sha1);
-extern char *sha1_to_hex(unsigned char *sha1); /* static buffer! */
+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 int cache_name_compare(const char *name1, int len1, const char *name2, int len2);
 
 #endif /* CACHE_H */