#define S_IFGITLINK 0160000
#define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK)
+/*
+ * Some mode bits are also used internally for computations.
+ *
+ * They *must* not overlap with any valid modes, and they *must* not be emitted
+ * to outside world - i.e. appear on disk or network. In other words, it's just
+ * temporary fields, which we internally use, but they have to stay in-house.
+ *
+ * ( such approach is valid, as standard S_IF* fits into 16 bits, and in Git
+ * codebase mode is `unsigned int` which is assumed to be at least 32 bits )
+ */
+
+/* used internally in tree-diff */
+#define S_DIFFTREE_IFXMIN_NEQ 0x80000000
+
+
/*
* Intensive research over the course of many years has shown that
* port 9418 is totally unused by anything else. Or
#define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
#define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
#define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
+#define GIT_SHALLOW_FILE_ENVIRONMENT "GIT_SHALLOW_FILE"
#define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR"
#define CONFIG_ENVIRONMENT "GIT_CONFIG"
#define CONFIG_DATA_ENVIRONMENT "GIT_CONFIG_PARAMETERS"
};
int git_config_perm(const char *var, const char *value);
int adjust_shared_perm(const char *path);
-int safe_create_leading_directories(char *path);
-int safe_create_leading_directories_const(const char *path);
+
+/*
+ * Create the directory containing the named path, using care to be
+ * somewhat safe against races. Return one of the scld_error values
+ * to indicate success/failure.
+ *
+ * SCLD_VANISHED indicates that one of the ancestor directories of the
+ * path existed at one point during the function call and then
+ * suddenly vanished, probably because another process pruned the
+ * directory while we were working. To be robust against this kind of
+ * race, callers might want to try invoking the function again when it
+ * returns SCLD_VANISHED.
+ */
+enum scld_error {
+ SCLD_OK = 0,
+ SCLD_FAILED = -1,
+ SCLD_PERMS = -2,
+ SCLD_EXISTS = -3,
+ SCLD_VANISHED = -4
+};
+enum scld_error safe_create_leading_directories(char *path);
+enum scld_error safe_create_leading_directories_const(const char *path);
+
int mkdir_in_gitdir(const char *path);
extern void home_config_paths(char **global, char **xdg, char *file);
extern char *expand_user_path(const char *path);
extern int interpret_branch_name(const char *str, int len, struct strbuf *);
extern int get_sha1_mb(const char *str, unsigned char *sha1);
-extern int refname_match(const char *abbrev_name, const char *full_name, const char **rules);
-extern const char *ref_rev_parse_rules[];
-#define ref_fetch_rules ref_rev_parse_rules
+/*
+ * Return true iff abbrev_name is a possible abbreviation for
+ * full_name according to the rules defined by ref_rev_parse_rules in
+ * refs.c.
+ */
+extern int refname_match(const char *abbrev_name, const char *full_name);
extern int create_symref(const char *ref, const char *refs_heads_master, const char *logmsg);
extern int validate_headref(const char *ref);
enum object_type *typep;
unsigned long *sizep;
unsigned long *disk_sizep;
+ unsigned char *delta_base_sha1;
/* Response */
enum {
extern void trace_argv_printf(const char **argv, const char *format, ...);
extern void trace_repo_setup(const char *prefix);
extern int trace_want(const char *key);
+__attribute__((format (printf, 2, 3)))
+extern void trace_printf_key(const char *key, const char *fmt, ...);
extern void trace_strbuf(const char *key, const struct strbuf *buf);
void packet_trace_identity(const char *prog);