Add a library function to add an alternate to the alternates file

diff --git a/cache.h b/cache.h
index 2a1e7ec6b2bf712af80813936b5aed434d02090e..9da9179afd035cf4cc5ae403344d872950d6d3b3 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -391,6 +391,7 @@ struct lock_file {
        char filename[PATH_MAX];
 };
 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);
 extern int commit_lock_file(struct lock_file *);
 
 extern int hold_locked_index(struct lock_file *, int);
@@ -474,10 +475,20 @@ static inline void hashclr(unsigned char *hash)
 
 int git_mkstemp(char *path, size_t n, const char *template);
 
+/*
+ * NOTE NOTE NOTE!!
+ *
+ * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must
+ * not be changed. Old repositories have core.sharedrepository written in
+ * numeric format, and therefore these values are preserved for compatibility
+ * reasons.
+ */
 enum sharedrepo {
-       PERM_UMASK = 0,
-       PERM_GROUP,
-       PERM_EVERYBODY
+       PERM_UMASK          = 0,
+       OLD_PERM_GROUP      = 1,
+       OLD_PERM_EVERYBODY  = 2,
+       PERM_GROUP          = 0660,
+       PERM_EVERYBODY      = 0664,
 };
 int git_config_perm(const char *var, const char *value);
 int adjust_shared_perm(const char *path);
@@ -588,6 +599,7 @@ extern struct alternate_object_database {
        char base[FLEX_ARRAY]; /* more */
 } *alt_odb_list;
 extern void prepare_alt_odb(void);
+extern void add_to_alternates_file(const char *reference);
 
 struct pack_window {
        struct pack_window *next;
@@ -692,6 +704,7 @@ extern int git_parse_long(const char *, long *);
 extern int git_parse_ulong(const char *, unsigned long *);
 extern int git_config_int(const char *, const char *);
 extern unsigned long git_config_ulong(const char *, const char *);
+extern int git_config_bool_or_int(const char *, const char *, int *);
 extern int git_config_bool(const char *, const char *);
 extern int git_config_string(const char **, const char *, const char *);
 extern int git_config_set(const char *, const char *);
@@ -715,8 +728,8 @@ extern const char *git_log_output_encoding;
 extern void maybe_flush_or_die(FILE *, const char *);
 extern int copy_fd(int ifd, int ofd);
 extern int copy_file(const char *dst, const char *src, int mode);
-extern int read_in_full(int fd, void *buf, size_t count);
-extern int write_in_full(int fd, const void *buf, size_t count);
+extern ssize_t read_in_full(int fd, void *buf, size_t count);
+extern ssize_t write_in_full(int fd, const void *buf, size_t count);
 extern void write_or_die(int fd, const void *buf, size_t count);
 extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg);
 extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg);