ref namespaces: infrastructure

diff --git a/cache.h b/cache.h
index 28899b7b7881474eed4a6f3b6fda8db79d5cbc9c..26310c464ef9f28246d5aa2ab027308de30bab76 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -379,6 +379,7 @@ static inline enum object_type object_type(unsigned int mode)
 }
 
 #define GIT_DIR_ENVIRONMENT "GIT_DIR"
+#define GIT_NAMESPACE_ENVIRONMENT "GIT_NAMESPACE"
 #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
 #define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
 #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
@@ -419,6 +420,8 @@ extern char *get_object_directory(void);
 extern char *get_index_file(void);
 extern char *get_graft_file(void);
 extern int set_git_dir(const char *path);
+extern const char *get_git_namespace(void);
+extern const char *strip_namespace(const char *namespaced_ref);
 extern const char *get_git_work_tree(void);
 extern const char *read_gitfile_gently(const char *path);
 extern void set_git_work_tree(const char *tree);
@@ -511,7 +514,7 @@ struct pathspec {
        struct pathspec_item {
                const char *match;
                int len;
-               unsigned int has_wildcard:1;
+               unsigned int use_wildcard:1;
        } *items;
 };
 
@@ -606,7 +609,7 @@ enum eol {
 #endif
 };
 
-extern enum eol eol;
+extern enum eol core_eol;
 
 enum branch_track {
        BRANCH_TRACK_UNSPECIFIED = -1,
@@ -676,14 +679,24 @@ extern char *sha1_pack_name(const unsigned char *sha1);
 extern char *sha1_pack_index_name(const unsigned char *sha1);
 extern const char *find_unique_abbrev(const unsigned char *sha1, int);
 extern const unsigned char null_sha1[20];
-static inline int is_null_sha1(const unsigned char *sha1)
+
+static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
 {
-       return !memcmp(sha1, null_sha1, 20);
+       int i;
+
+       for (i = 0; i < 20; i++, sha1++, sha2++) {
+               if (*sha1 != *sha2)
+                       return *sha1 - *sha2;
+       }
+
+       return 0;
 }
-static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
+
+static inline int is_null_sha1(const unsigned char *sha1)
 {
-       return memcmp(sha1, sha2, 20);
+       return !hashcmp(sha1, null_sha1);
 }
+
 static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
 {
        memcpy(sha_dst, sha_src, 20);
@@ -746,13 +759,23 @@ char *strip_path_suffix(const char *path, const char *suffix);
 int daemon_avoid_alias(const char *path);
 int offset_1st_component(const char *path);
 
-/* Read and unpack a sha1 file into memory, write memory to a sha1 file */
-extern int sha1_object_info(const unsigned char *, unsigned long *);
-extern void *read_sha1_file_repl(const unsigned char *sha1, enum object_type *type, unsigned long *size, const unsigned char **replacement);
+/* object replacement */
+#define READ_SHA1_FILE_REPLACE 1
+extern void *read_sha1_file_extended(const unsigned char *sha1, enum object_type *type, unsigned long *size, unsigned flag);
 static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
 {
-       return read_sha1_file_repl(sha1, type, size, NULL);
+       return read_sha1_file_extended(sha1, type, size, READ_SHA1_FILE_REPLACE);
+}
+extern const unsigned char *do_lookup_replace_object(const unsigned char *sha1);
+static inline const unsigned char *lookup_replace_object(const unsigned char *sha1)
+{
+       if (!read_replace_refs)
+               return sha1;
+       return do_lookup_replace_object(sha1);
 }
+
+/* Read and unpack a sha1 file into memory, write memory to a sha1 file */
+extern int sha1_object_info(const unsigned char *, unsigned long *);
 extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1);
 extern int write_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *return_sha1);
 extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *);
@@ -790,15 +813,15 @@ struct object_context {
 };
 
 extern int get_sha1(const char *str, unsigned char *sha1);
-extern int get_sha1_with_mode_1(const char *str, unsigned char *sha1, unsigned *mode, int gently, const char *prefix);
+extern int get_sha1_with_mode_1(const char *str, unsigned char *sha1, unsigned *mode, int only_to_die, const char *prefix);
 static inline int get_sha1_with_mode(const char *str, unsigned char *sha1, unsigned *mode)
 {
-       return get_sha1_with_mode_1(str, sha1, mode, 1, NULL);
+       return get_sha1_with_mode_1(str, sha1, mode, 0, NULL);
 }
-extern int get_sha1_with_context_1(const char *name, unsigned char *sha1, struct object_context *orc, int gently, const char *prefix);
+extern int get_sha1_with_context_1(const char *name, unsigned char *sha1, struct object_context *orc, int only_to_die, const char *prefix);
 static inline int get_sha1_with_context(const char *str, unsigned char *sha1, struct object_context *orc)
 {
-       return get_sha1_with_context_1(str, sha1, orc, 1, NULL);
+       return get_sha1_with_context_1(str, sha1, orc, 0, NULL);
 }
 extern int get_sha1_hex(const char *hex, unsigned char *sha1);
 extern char *sha1_to_hex(const unsigned char *sha1);   /* static buffer result! */
@@ -965,6 +988,7 @@ extern struct ref *find_ref_by_name(const struct ref *list, const char *name);
 extern char *git_getpass(const char *prompt);
 extern struct child_process *git_connect(int fd[2], const char *url, const char *prog, int flags);
 extern int finish_connect(struct child_process *conn);
+extern int git_connection_is_socket(struct child_process *conn);
 extern int path_match(const char *path, int nr, char **match);
 struct extra_have_objects {
        int nr, alloc;
@@ -1002,6 +1026,16 @@ extern const char *packed_object_info_detail(struct packed_git *, off_t, unsigne
 /* Dumb servers support */
 extern int update_server_info(int);
 
+/* git_config_parse_key() returns these negated: */
+#define CONFIG_INVALID_KEY 1
+#define CONFIG_NO_SECTION_OR_NAME 2
+/* git_config_set(), git_config_set_multivar() return the above or these: */
+#define CONFIG_NO_LOCK -1
+#define CONFIG_INVALID_FILE 3
+#define CONFIG_NO_WRITE 4
+#define CONFIG_NOTHING_SET 5
+#define CONFIG_INVALID_PATTERN 6
+
 typedef int (*config_fn_t)(const char *, const char *, void *);
 extern int git_default_config(const char *, const char *, void *);
 extern int git_config_from_file(config_fn_t fn, const char *, void *);