Make default merge messages denser.

diff --git a/cache.h b/cache.h
index 7696766dde0c8bd566a4529d6fa755da32f1482e..74307f18296a6ef00f1839cc62d7560db1b916d6 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -10,6 +10,7 @@
 #include <stdarg.h>
 #include <string.h>
 #include <errno.h>
+#include <limits.h>
 #include <sys/mman.h>
 #include <sys/param.h>
 #include <netinet/in.h>
@@ -31,6 +32,12 @@
 #define DTYPE(de)      DT_UNKNOWN
 #endif
 
+#ifdef __GNUC__
+#define NORETURN __attribute__((__noreturn__))
+#else
+#define NORETURN
+#endif
+
 /*
  * Environment variables transition.
  * We accept older names for now but warn.
@@ -40,10 +47,6 @@ extern char *gitenv_bc(const char *);
 
 /*
  * Basic data structures for the directory cache
- *
- * NOTE NOTE NOTE! This is all in the native CPU byte format. It's
- * not even trying to be portable. It's trying to be efficient. It's
- * just a cache, after all.
  */
 
 #define CACHE_SIGNATURE 0x44495243     /* "DIRC" */
@@ -87,6 +90,7 @@ struct cache_entry {
 
 #define CE_NAMEMASK  (0x0fff)
 #define CE_STAGEMASK (0x3000)
+#define CE_UPDATE    (0x4000)
 #define CE_STAGESHIFT 12
 
 #define create_ce_flags(len, stage) htons((len) | ((stage) << CE_STAGESHIFT))
@@ -113,6 +117,7 @@ extern unsigned int active_nr, active_alloc, active_cache_changed;
 #define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
 
 extern char *get_object_directory(void);
+extern char *get_refs_directory(void);
 extern char *get_index_file(void);
 
 #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
@@ -126,11 +131,20 @@ extern int cache_name_pos(const char *name, int namelen);
 #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_cache_entry_at(int pos);
 extern int remove_file_from_cache(char *path);
-extern int same_name(struct cache_entry *a, struct cache_entry *b);
-extern int cache_match_stat(struct cache_entry *ce, struct stat *st);
+extern int ce_same_name(struct cache_entry *a, struct cache_entry *b);
+extern int ce_match_stat(struct cache_entry *ce, struct stat *st);
 extern int index_fd(unsigned char *sha1, int fd, struct stat *st);
+extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
+
+struct cache_file {
+       struct cache_file *next;
+       char lockfile[PATH_MAX];
+};
+extern int hold_index_file_for_update(struct cache_file *, const char *path);
+extern int commit_index_file(struct cache_file *);
+extern void rollback_index_file(struct cache_file *);
 
 #define MTIME_CHANGED  0x0001
 #define CTIME_CHANGED  0x0002
@@ -145,9 +159,13 @@ extern char *sha1_file_name(const unsigned char *sha1);
 
 /* Read and unpack a sha1 file into memory, write memory to a sha1 file */
 extern void * map_sha1_file(const unsigned char *sha1, unsigned long *size);
+extern int unpack_sha1_header(z_stream *stream, void *map, unsigned long mapsize, void *buffer, unsigned long size);
+extern int parse_sha1_header(char *hdr, char *type, unsigned long *sizep);
+extern int sha1_delta_base(const unsigned char *, unsigned char *);
+extern int sha1_file_size(const unsigned char *, unsigned long *);
 extern void * unpack_sha1_file(void *map, unsigned long mapsize, char *type, unsigned long *size);
 extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size);
-extern int write_sha1_file(char *buf, unsigned long len, const char *type, unsigned char *return_sha1);
+extern int write_sha1_file(void *buf, unsigned long len, const char *type, unsigned char *return_sha1);
 
 extern int check_sha1_signature(unsigned char *sha1, void *buf, unsigned long size, const char *type);
 
@@ -164,14 +182,15 @@ 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 die(const char *err, ...);
+extern void usage(const char *err) NORETURN;
+extern void die(const char *err, ...) NORETURN;
 extern int error(const char *err, ...);
 
+extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
 extern int cache_name_compare(const char *name1, int len1, const char *name2, int len2);
 
 extern void *read_object_with_reference(const unsigned char *sha1,
-                                       const unsigned char *required_type,
+                                       const char *required_type,
                                        unsigned long *size,
                                        unsigned char *sha1_ret);
 
@@ -203,4 +222,15 @@ static inline void *xcalloc(size_t nmemb, size_t size)
        return ret;
 }
 
+struct checkout {
+       const char *base_dir;
+       int base_dir_len;
+       unsigned force:1,
+                quiet:1,
+                not_new:1,
+                refresh_cache:1;
+};
+
+extern int checkout_entry(struct cache_entry *ce, struct checkout *state);
+
 #endif /* CACHE_H */