diff options
Diffstat (limited to 'cache.h')
-rw-r--r-- | cache.h | 117 |
1 files changed, 37 insertions, 80 deletions
@@ -11,6 +11,8 @@ #include "string-list.h" #include "pack-revindex.h" #include "hash.h" +#include "path.h" +#include "sha1-array.h" #ifndef platform_SHA_CTX /* @@ -462,6 +464,8 @@ static inline enum object_type object_type(unsigned int mode) */ extern const char * const local_repo_env[]; +extern void setup_git_env(void); + /* * Returns true iff we have a configured git repository (either via * setup_git_directory, or in the environment via $GIT_DIR). @@ -769,7 +773,6 @@ extern int core_apply_sparse_checkout; extern int precomposed_unicode; extern int protect_hfs; extern int protect_ntfs; -extern int git_db_env, git_index_env, git_graft_env, git_common_dir_env; /* * Include broken refs in all ref iterations, which will @@ -892,64 +895,6 @@ extern void check_repository_format(void); #define TYPE_CHANGED 0x0040 /* - * Return a statically allocated filename, either generically (mkpath), in - * the repository directory (git_path), or in a submodule's repository - * directory (git_path_submodule). In all cases, note that the result - * may be overwritten by another call to _any_ of the functions. Consider - * using the safer "dup" or "strbuf" formats below (in some cases, the - * unsafe versions have already been removed). - */ -extern const char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2))); -extern const char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2))); -extern const char *git_common_path(const char *fmt, ...) __attribute__((format (printf, 1, 2))); - -extern char *mksnpath(char *buf, size_t n, const char *fmt, ...) - __attribute__((format (printf, 3, 4))); -extern void strbuf_git_path(struct strbuf *sb, const char *fmt, ...) - __attribute__((format (printf, 2, 3))); -extern void strbuf_git_common_path(struct strbuf *sb, const char *fmt, ...) - __attribute__((format (printf, 2, 3))); -extern char *git_path_buf(struct strbuf *buf, const char *fmt, ...) - __attribute__((format (printf, 2, 3))); -extern int strbuf_git_path_submodule(struct strbuf *sb, const char *path, - const char *fmt, ...) - __attribute__((format (printf, 3, 4))); -extern char *git_pathdup(const char *fmt, ...) - __attribute__((format (printf, 1, 2))); -extern char *mkpathdup(const char *fmt, ...) - __attribute__((format (printf, 1, 2))); -extern char *git_pathdup_submodule(const char *path, const char *fmt, ...) - __attribute__((format (printf, 2, 3))); - -extern void report_linked_checkout_garbage(void); - -/* - * You can define a static memoized git path like: - * - * static GIT_PATH_FUNC(git_path_foo, "FOO"); - * - * or use one of the global ones below. - */ -#define GIT_PATH_FUNC(func, filename) \ - const char *func(void) \ - { \ - static char *ret; \ - if (!ret) \ - ret = git_pathdup(filename); \ - return ret; \ - } - -const char *git_path_cherry_pick_head(void); -const char *git_path_revert_head(void); -const char *git_path_squash_msg(void); -const char *git_path_merge_msg(void); -const char *git_path_merge_rr(void); -const char *git_path_merge_mode(void); -const char *git_path_merge_head(void); -const char *git_path_fetch_head(void); -const char *git_path_shallow(void); - -/* * Return the name of the file in the local object database that would * be used to store a loose object with the specified sha1. The * return value is a pointer to a statically allocated buffer that is @@ -1215,13 +1160,12 @@ extern char *xdg_config_home(const char *filename); */ extern char *xdg_cache_home(const char *filename); -/* object replacement */ -#define LOOKUP_REPLACE_OBJECT 1 -#define LOOKUP_UNKNOWN_OBJECT 2 -extern void *read_sha1_file_extended(const unsigned char *sha1, enum object_type *type, unsigned long *size, unsigned flag); +extern void *read_sha1_file_extended(const unsigned char *sha1, + enum object_type *type, + unsigned long *size, int lookup_replace); static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size) { - return read_sha1_file_extended(sha1, type, size, LOOKUP_REPLACE_OBJECT); + return read_sha1_file_extended(sha1, type, size, 1); } /* @@ -1243,13 +1187,6 @@ static inline const unsigned char *lookup_replace_object(const unsigned char *sh return do_lookup_replace_object(sha1); } -static inline const unsigned char *lookup_replace_object_extended(const unsigned char *sha1, unsigned flag) -{ - if (!(flag & LOOKUP_REPLACE_OBJECT)) - return sha1; - return 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); @@ -1286,15 +1223,10 @@ int read_loose_object(const char *path, void **contents); /* - * Return true iff we have an object named sha1, whether local or in - * an alternate object database, and whether packed or loose. This - * function does not respect replace references. - * - * If the QUICK flag is set, do not re-check the pack directory - * when we cannot find the object (this means we may give a false - * negative answer if another process is simultaneously repacking). + * Convenience for sha1_object_info_extended() with a NULL struct + * object_info. OBJECT_INFO_SKIP_CACHED is automatically set; pass + * nonzero flags to also set other flags. */ -#define HAS_SHA1_QUICK 0x1 extern int has_sha1_file_with_flags(const unsigned char *sha1, int flags); static inline int has_sha1_file(const unsigned char *sha1) { @@ -1596,6 +1528,16 @@ extern struct alternate_object_database { struct strbuf scratch; size_t base_len; + /* + * Used to store the results of readdir(3) calls when searching + * for unique abbreviated hashes. This cache is never + * invalidated, thus it's racy and not necessarily accurate. + * That's fine for its purpose; don't use it for tasks requiring + * greater accuracy! + */ + char loose_objects_subdir_seen[256]; + struct oid_array loose_objects_cache; + char path[FLEX_ARRAY]; } *alt_odb_list; extern void prepare_alt_odb(void); @@ -1811,9 +1753,15 @@ typedef int each_loose_object_fn(const struct object_id *oid, typedef int each_loose_cruft_fn(const char *basename, const char *path, void *data); -typedef int each_loose_subdir_fn(int nr, +typedef int each_loose_subdir_fn(unsigned int nr, const char *path, void *data); +int for_each_file_in_obj_subdir(unsigned int subdir_nr, + struct strbuf *path, + each_loose_object_fn obj_cb, + each_loose_cruft_fn cruft_cb, + each_loose_subdir_fn subdir_cb, + void *data); int for_each_loose_file_in_objdir(const char *path, each_loose_object_fn obj_cb, each_loose_cruft_fn cruft_cb, @@ -1845,6 +1793,7 @@ struct object_info { off_t *disk_sizep; unsigned char *delta_base_sha1; struct strbuf *typename; + void **contentp; /* Response */ enum { @@ -1876,6 +1825,14 @@ struct object_info { */ #define OBJECT_INFO_INIT {NULL} +/* Invoke lookup_replace_object() on the given hash */ +#define OBJECT_INFO_LOOKUP_REPLACE 1 +/* Allow reading from a loose object file of unknown/bogus type */ +#define OBJECT_INFO_ALLOW_UNKNOWN_TYPE 2 +/* Do not check cached storage */ +#define OBJECT_INFO_SKIP_CACHED 4 +/* Do not retry packed storage after checking packed and loose storage */ +#define OBJECT_INFO_QUICK 8 extern int sha1_object_info_extended(const unsigned char *, struct object_info *, unsigned flags); extern int packed_object_info(struct packed_git *pack, off_t offset, struct object_info *); |