4 #include "git-compat-util.h"
12 #define git_SHA_CTX SHA_CTX
13 #define git_SHA1_Init SHA1_Init
14 #define git_SHA1_Update SHA1_Update
15 #define git_SHA1_Final SHA1_Final
19 typedef struct git_zstream
{
21 unsigned long avail_in
;
22 unsigned long avail_out
;
23 unsigned long total_in
;
24 unsigned long total_out
;
25 unsigned char *next_in
;
26 unsigned char *next_out
;
29 void git_inflate_init(git_zstream
*);
30 void git_inflate_init_gzip_only(git_zstream
*);
31 void git_inflate_end(git_zstream
*);
32 int git_inflate(git_zstream
*, int flush
);
34 void git_deflate_init(git_zstream
*, int level
);
35 void git_deflate_init_gzip(git_zstream
*, int level
);
36 void git_deflate_end(git_zstream
*);
37 int git_deflate_end_gently(git_zstream
*);
38 int git_deflate(git_zstream
*, int flush
);
39 unsigned long git_deflate_bound(git_zstream
*, unsigned long);
41 #if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT)
42 #define DTYPE(de) ((de)->d_type)
52 #define DTYPE(de) DT_UNKNOWN
55 /* unknown mode (impossible combination S_IFIFO|S_IFCHR) */
56 #define S_IFINVALID 0030000
59 * A "directory link" is a link to another git directory.
61 * The value 0160000 is not normally a valid mode, and
62 * also just happens to be S_IFDIR + S_IFLNK
64 * NOTE! We *really* shouldn't depend on the S_IFxxx macros
65 * always having the same values everywhere. We should use
66 * our internal git values for these things, and then we can
67 * translate that to the OS-specific value. It just so
68 * happens that everybody shares the same bit representation
69 * in the UNIX world (and apparently wider too..)
71 #define S_IFGITLINK 0160000
72 #define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK)
75 * Intensive research over the course of many years has shown that
76 * port 9418 is totally unused by anything else. Or
78 * Your search - "port 9418" - did not match any documents.
80 * as www.google.com puts it.
82 * This port has been properly assigned for git use by IANA:
83 * git (Assigned-9418) [I06-050728-0001].
85 * git 9418/tcp git pack transfer service
86 * git 9418/udp git pack transfer service
88 * with Linus Torvalds <torvalds@osdl.org> as the point of
89 * contact. September 2005.
91 * See http://www.iana.org/assignments/port-numbers
93 #define DEFAULT_GIT_PORT 9418
96 * Basic data structures for the directory cache
99 #define CACHE_SIGNATURE 0x44495243 /* "DIRC" */
100 struct cache_header
{
101 unsigned int hdr_signature
;
102 unsigned int hdr_version
;
103 unsigned int hdr_entries
;
107 * The "cache_time" is just the low 32 bits of the
108 * time. It doesn't matter if it overflows - we only
109 * check it for equality in the 32 bits we save.
117 * dev/ino/uid/gid/size are also just tracked to the low 32 bits
118 * Again - this is just a (very strong in practice) heuristic that
119 * the inode hasn't changed.
121 * We save the fields in big-endian order to allow using the
122 * index file over NFS transparently.
124 struct ondisk_cache_entry
{
125 struct cache_time ctime
;
126 struct cache_time mtime
;
133 unsigned char sha1
[20];
134 unsigned short flags
;
135 char name
[FLEX_ARRAY
]; /* more */
139 * This struct is used when CE_EXTENDED bit is 1
140 * The struct must match ondisk_cache_entry exactly from
143 struct ondisk_cache_entry_extended
{
144 struct cache_time ctime
;
145 struct cache_time mtime
;
152 unsigned char sha1
[20];
153 unsigned short flags
;
154 unsigned short flags2
;
155 char name
[FLEX_ARRAY
]; /* more */
159 struct cache_time ce_ctime
;
160 struct cache_time ce_mtime
;
163 unsigned int ce_mode
;
166 unsigned int ce_size
;
167 unsigned int ce_flags
;
168 unsigned char sha1
[20];
169 struct cache_entry
*next
;
170 char name
[FLEX_ARRAY
]; /* more */
173 #define CE_NAMEMASK (0x0fff)
174 #define CE_STAGEMASK (0x3000)
175 #define CE_EXTENDED (0x4000)
176 #define CE_VALID (0x8000)
177 #define CE_STAGESHIFT 12
180 * Range 0xFFFF0000 in ce_flags is divided into
181 * two parts: in-memory flags and on-disk ones.
182 * Flags in CE_EXTENDED_FLAGS will get saved on-disk
183 * if you want to save a new flag, add it in
186 * In-memory only flags
188 #define CE_UPDATE (1 << 16)
189 #define CE_REMOVE (1 << 17)
190 #define CE_UPTODATE (1 << 18)
191 #define CE_ADDED (1 << 19)
193 #define CE_HASHED (1 << 20)
194 #define CE_UNHASHED (1 << 21)
195 #define CE_WT_REMOVE (1 << 22) /* remove in work directory */
196 #define CE_CONFLICTED (1 << 23)
198 #define CE_UNPACKED (1 << 24)
199 #define CE_NEW_SKIP_WORKTREE (1 << 25)
202 * Extended on-disk flags
204 #define CE_INTENT_TO_ADD (1 << 29)
205 #define CE_SKIP_WORKTREE (1 << 30)
206 /* CE_EXTENDED2 is for future extension */
207 #define CE_EXTENDED2 (1 << 31)
209 #define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD | CE_SKIP_WORKTREE)
212 * Safeguard to avoid saving wrong flags:
213 * - CE_EXTENDED2 won't get saved until its semantic is known
214 * - Bits in 0x0000FFFF have been saved in ce_flags already
215 * - Bits in 0x003F0000 are currently in-memory flags
217 #if CE_EXTENDED_FLAGS & 0x803FFFFF
218 #error "CE_EXTENDED_FLAGS out of range"
222 * Copy the sha1 and stat state of a cache entry from one to
223 * another. But we never change the name, or the hash state!
225 #define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)
226 static inline void copy_cache_entry(struct cache_entry
*dst
, struct cache_entry
*src
)
228 unsigned int state
= dst
->ce_flags
& CE_STATE_MASK
;
230 /* Don't copy hash chain and name */
231 memcpy(dst
, src
, offsetof(struct cache_entry
, next
));
233 /* Restore the hash state */
234 dst
->ce_flags
= (dst
->ce_flags
& ~CE_STATE_MASK
) | state
;
237 static inline unsigned create_ce_flags(size_t len
, unsigned stage
)
239 if (len
>= CE_NAMEMASK
)
241 return (len
| (stage
<< CE_STAGESHIFT
));
244 static inline size_t ce_namelen(const struct cache_entry
*ce
)
246 size_t len
= ce
->ce_flags
& CE_NAMEMASK
;
247 if (len
< CE_NAMEMASK
)
249 return strlen(ce
->name
+ CE_NAMEMASK
) + CE_NAMEMASK
;
252 #define ce_size(ce) cache_entry_size(ce_namelen(ce))
253 #define ondisk_ce_size(ce) (((ce)->ce_flags & CE_EXTENDED) ? \
254 ondisk_cache_entry_extended_size(ce_namelen(ce)) : \
255 ondisk_cache_entry_size(ce_namelen(ce)))
256 #define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT)
257 #define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE)
258 #define ce_skip_worktree(ce) ((ce)->ce_flags & CE_SKIP_WORKTREE)
259 #define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE)
261 #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644)
262 static inline unsigned int create_ce_mode(unsigned int mode
)
266 if (S_ISDIR(mode
) || S_ISGITLINK(mode
))
268 return S_IFREG
| ce_permissions(mode
);
270 static inline unsigned int ce_mode_from_stat(struct cache_entry
*ce
, unsigned int mode
)
272 extern int trust_executable_bit
, has_symlinks
;
273 if (!has_symlinks
&& S_ISREG(mode
) &&
274 ce
&& S_ISLNK(ce
->ce_mode
))
276 if (!trust_executable_bit
&& S_ISREG(mode
)) {
277 if (ce
&& S_ISREG(ce
->ce_mode
))
279 return create_ce_mode(0666);
281 return create_ce_mode(mode
);
283 static inline int ce_to_dtype(const struct cache_entry
*ce
)
285 unsigned ce_mode
= ntohl(ce
->ce_mode
);
286 if (S_ISREG(ce_mode
))
288 else if (S_ISDIR(ce_mode
) || S_ISGITLINK(ce_mode
))
290 else if (S_ISLNK(ce_mode
))
295 static inline unsigned int canon_mode(unsigned int mode
)
298 return S_IFREG
| ce_permissions(mode
);
306 #define flexible_size(STRUCT,len) ((offsetof(struct STRUCT,name) + (len) + 8) & ~7)
307 #define cache_entry_size(len) flexible_size(cache_entry,len)
308 #define ondisk_cache_entry_size(len) flexible_size(ondisk_cache_entry,len)
309 #define ondisk_cache_entry_extended_size(len) flexible_size(ondisk_cache_entry_extended,len)
312 struct cache_entry
**cache
;
313 unsigned int cache_nr
, cache_alloc
, cache_changed
;
314 struct string_list
*resolve_undo
;
315 struct cache_tree
*cache_tree
;
316 struct cache_time timestamp
;
318 unsigned name_hash_initialized
: 1,
320 struct hash_table name_hash
;
323 extern struct index_state the_index
;
326 extern void add_name_hash(struct index_state
*istate
, struct cache_entry
*ce
);
328 * We don't actually *remove* it, we can just mark it invalid so that
329 * we won't find it in lookups.
331 * Not only would we have to search the lists (simple enough), but
332 * we'd also have to rehash other hash buckets in case this makes the
333 * hash bucket empty (common). So it's much better to just mark
336 static inline void remove_name_hash(struct cache_entry
*ce
)
338 ce
->ce_flags
|= CE_UNHASHED
;
342 #ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
343 #define active_cache (the_index.cache)
344 #define active_nr (the_index.cache_nr)
345 #define active_alloc (the_index.cache_alloc)
346 #define active_cache_changed (the_index.cache_changed)
347 #define active_cache_tree (the_index.cache_tree)
349 #define read_cache() read_index(&the_index)
350 #define read_cache_from(path) read_index_from(&the_index, (path))
351 #define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec))
352 #define is_cache_unborn() is_index_unborn(&the_index)
353 #define read_cache_unmerged() read_index_unmerged(&the_index)
354 #define write_cache(newfd, cache, entries) write_index(&the_index, (newfd))
355 #define discard_cache() discard_index(&the_index)
356 #define unmerged_cache() unmerged_index(&the_index)
357 #define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen))
358 #define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option))
359 #define rename_cache_entry_at(pos, new_name) rename_index_entry_at(&the_index, (pos), (new_name))
360 #define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos))
361 #define remove_file_from_cache(path) remove_file_from_index(&the_index, (path))
362 #define add_to_cache(path, st, flags) add_to_index(&the_index, (path), (st), (flags))
363 #define add_file_to_cache(path, flags) add_file_to_index(&the_index, (path), (flags))
364 #define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL)
365 #define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options))
366 #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
367 #define cache_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase))
368 #define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen))
369 #define resolve_undo_clear() resolve_undo_clear_index(&the_index)
370 #define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at)
371 #define unmerge_cache(pathspec) unmerge_index(&the_index, pathspec)
381 /* 5 for future expansion */
388 static inline enum object_type
object_type(unsigned int mode
)
390 return S_ISDIR(mode
) ? OBJ_TREE
:
391 S_ISGITLINK(mode
) ? OBJ_COMMIT
:
395 #define GIT_DIR_ENVIRONMENT "GIT_DIR"
396 #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
397 #define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
398 #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
399 #define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
400 #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
401 #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR"
402 #define CONFIG_ENVIRONMENT "GIT_CONFIG"
403 #define CONFIG_DATA_ENVIRONMENT "GIT_CONFIG_PARAMETERS"
404 #define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH"
405 #define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES"
406 #define NO_REPLACE_OBJECTS_ENVIRONMENT "GIT_NO_REPLACE_OBJECTS"
407 #define GITATTRIBUTES_FILE ".gitattributes"
408 #define INFOATTRIBUTES_FILE "info/attributes"
409 #define ATTRIBUTE_MACRO_PREFIX "[attr]"
410 #define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF"
411 #define GIT_NOTES_DEFAULT_REF "refs/notes/commits"
412 #define GIT_NOTES_DISPLAY_REF_ENVIRONMENT "GIT_NOTES_DISPLAY_REF"
413 #define GIT_NOTES_REWRITE_REF_ENVIRONMENT "GIT_NOTES_REWRITE_REF"
414 #define GIT_NOTES_REWRITE_MODE_ENVIRONMENT "GIT_NOTES_REWRITE_MODE"
417 * Repository-local GIT_* environment variables
418 * The array is NULL-terminated to simplify its usage in contexts such
419 * environment creation or simple walk of the list.
420 * The number of non-NULL entries is available as a macro.
422 #define LOCAL_REPO_ENV_SIZE 9
423 extern const char *const local_repo_env
[LOCAL_REPO_ENV_SIZE
+ 1];
425 extern int is_bare_repository_cfg
;
426 extern int is_bare_repository(void);
427 extern int is_inside_git_dir(void);
428 extern char *git_work_tree_cfg
;
429 extern int is_inside_work_tree(void);
430 extern int have_git_dir(void);
431 extern const char *get_git_dir(void);
432 extern char *get_object_directory(void);
433 extern char *get_index_file(void);
434 extern char *get_graft_file(void);
435 extern int set_git_dir(const char *path
);
436 extern const char *get_git_work_tree(void);
437 extern const char *read_gitfile_gently(const char *path
);
438 extern void set_git_work_tree(const char *tree
);
440 #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
442 extern const char **get_pathspec(const char *prefix
, const char **pathspec
);
443 extern void setup_work_tree(void);
444 extern const char *setup_git_directory_gently(int *);
445 extern const char *setup_git_directory(void);
446 extern char *prefix_path(const char *prefix
, int len
, const char *path
);
447 extern const char *prefix_filename(const char *prefix
, int len
, const char *path
);
448 extern int check_filename(const char *prefix
, const char *name
);
449 extern void verify_filename(const char *prefix
, const char *name
);
450 extern void verify_non_filename(const char *prefix
, const char *name
);
452 #define INIT_DB_QUIET 0x0001
454 extern int set_git_dir_init(const char *git_dir
, const char *real_git_dir
, int);
455 extern int init_db(const char *template_dir
, unsigned int flags
);
457 #define alloc_nr(x) (((x)+16)*3/2)
460 * Realloc the buffer pointed at by variable 'x' so that it can hold
461 * at least 'nr' entries; the number of entries currently allocated
462 * is 'alloc', using the standard growing factor alloc_nr() macro.
464 * DO NOT USE any expression with side-effect for 'x', 'nr', or 'alloc'.
466 #define ALLOC_GROW(x, nr, alloc) \
468 if ((nr) > alloc) { \
469 if (alloc_nr(alloc) < (nr)) \
472 alloc = alloc_nr(alloc); \
473 x = xrealloc((x), alloc * sizeof(*(x))); \
477 /* Initialize and use the cache information */
478 extern int read_index(struct index_state
*);
479 extern int read_index_preload(struct index_state
*, const char **pathspec
);
480 extern int read_index_from(struct index_state
*, const char *path
);
481 extern int is_index_unborn(struct index_state
*);
482 extern int read_index_unmerged(struct index_state
*);
483 extern int write_index(struct index_state
*, int newfd
);
484 extern int discard_index(struct index_state
*);
485 extern int unmerged_index(const struct index_state
*);
486 extern int verify_path(const char *path
);
487 extern struct cache_entry
*index_name_exists(struct index_state
*istate
, const char *name
, int namelen
, int igncase
);
488 extern int index_name_pos(const struct index_state
*, const char *name
, int namelen
);
489 #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
490 #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
491 #define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
492 #define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
493 #define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */
494 extern int add_index_entry(struct index_state
*, struct cache_entry
*ce
, int option
);
495 extern void rename_index_entry_at(struct index_state
*, int pos
, const char *new_name
);
496 extern int remove_index_entry_at(struct index_state
*, int pos
);
497 extern void remove_marked_cache_entries(struct index_state
*istate
);
498 extern int remove_file_from_index(struct index_state
*, const char *path
);
499 #define ADD_CACHE_VERBOSE 1
500 #define ADD_CACHE_PRETEND 2
501 #define ADD_CACHE_IGNORE_ERRORS 4
502 #define ADD_CACHE_IGNORE_REMOVAL 8
503 #define ADD_CACHE_INTENT 16
504 extern int add_to_index(struct index_state
*, const char *path
, struct stat
*, int flags
);
505 extern int add_file_to_index(struct index_state
*, const char *path
, int flags
);
506 extern struct cache_entry
*make_cache_entry(unsigned int mode
, const unsigned char *sha1
, const char *path
, int stage
, int refresh
);
507 extern int ce_same_name(struct cache_entry
*a
, struct cache_entry
*b
);
508 extern int index_name_is_other(const struct index_state
*, const char *, int);
510 /* do stat comparison even if CE_VALID is true */
511 #define CE_MATCH_IGNORE_VALID 01
512 /* do not check the contents but report dirty on racily-clean entries */
513 #define CE_MATCH_RACY_IS_DIRTY 02
514 /* do stat comparison even if CE_SKIP_WORKTREE is true */
515 #define CE_MATCH_IGNORE_SKIP_WORKTREE 04
516 extern int ie_match_stat(const struct index_state
*, struct cache_entry
*, struct stat
*, unsigned int);
517 extern int ie_modified(const struct index_state
*, struct cache_entry
*, struct stat
*, unsigned int);
520 const char **raw
; /* get_pathspec() result, not freed by free_pathspec() */
522 unsigned int has_wildcard
:1;
523 unsigned int recursive
:1;
525 struct pathspec_item
{
528 unsigned int has_wildcard
:1;
532 extern int init_pathspec(struct pathspec
*, const char **);
533 extern void free_pathspec(struct pathspec
*);
534 extern int ce_path_match(const struct cache_entry
*ce
, const struct pathspec
*pathspec
);
535 extern int index_fd(unsigned char *sha1
, int fd
, struct stat
*st
, int write_object
, enum object_type type
, const char *path
, int format_check
);
536 extern int index_path(unsigned char *sha1
, const char *path
, struct stat
*st
, int write_object
);
537 extern void fill_stat_cache_info(struct cache_entry
*ce
, struct stat
*st
);
539 #define REFRESH_REALLY 0x0001 /* ignore_valid */
540 #define REFRESH_UNMERGED 0x0002 /* allow unmerged */
541 #define REFRESH_QUIET 0x0004 /* be quiet about it */
542 #define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */
543 #define REFRESH_IGNORE_SUBMODULES 0x0010 /* ignore submodules */
544 #define REFRESH_IN_PORCELAIN 0x0020 /* user friendly output, not "needs update" */
545 extern int refresh_index(struct index_state
*, unsigned int flags
, const char **pathspec
, char *seen
, const char *header_msg
);
548 struct lock_file
*next
;
552 char filename
[PATH_MAX
];
554 #define LOCK_DIE_ON_ERROR 1
555 #define LOCK_NODEREF 2
556 extern int unable_to_lock_error(const char *path
, int err
);
557 extern NORETURN
void unable_to_lock_index_die(const char *path
, int err
);
558 extern int hold_lock_file_for_update(struct lock_file
*, const char *path
, int);
559 extern int hold_lock_file_for_append(struct lock_file
*, const char *path
, int);
560 extern int commit_lock_file(struct lock_file
*);
561 extern void update_index_if_able(struct index_state
*, struct lock_file
*);
563 extern int hold_locked_index(struct lock_file
*, int);
564 extern int commit_locked_index(struct lock_file
*);
565 extern void set_alternate_index_output(const char *);
566 extern int close_lock_file(struct lock_file
*);
567 extern void rollback_lock_file(struct lock_file
*);
568 extern int delete_ref(const char *, const unsigned char *sha1
, int delopt
);
570 /* Environment bits from configuration mechanism */
571 extern int trust_executable_bit
;
572 extern int trust_ctime
;
573 extern int quote_path_fully
;
574 extern int has_symlinks
;
575 extern int minimum_abbrev
, default_abbrev
;
576 extern int ignore_case
;
577 extern int assume_unchanged
;
578 extern int prefer_symlink_refs
;
579 extern int log_all_ref_updates
;
580 extern int warn_ambiguous_refs
;
581 extern int shared_repository
;
582 extern const char *apply_default_whitespace
;
583 extern const char *apply_default_ignorewhitespace
;
584 extern int zlib_compression_level
;
585 extern int core_compression_level
;
586 extern int core_compression_seen
;
587 extern size_t packed_git_window_size
;
588 extern size_t packed_git_limit
;
589 extern size_t delta_base_cache_limit
;
590 extern unsigned long big_file_threshold
;
591 extern int read_replace_refs
;
592 extern int fsync_object_files
;
593 extern int core_preload_index
;
594 extern int core_apply_sparse_checkout
;
602 extern enum safe_crlf safe_crlf
;
610 extern enum auto_crlf auto_crlf
;
617 EOL_NATIVE
= EOL_CRLF
626 BRANCH_TRACK_UNSPECIFIED
= -1,
627 BRANCH_TRACK_NEVER
= 0,
630 BRANCH_TRACK_EXPLICIT
,
631 BRANCH_TRACK_OVERRIDE
634 enum rebase_setup_type
{
635 AUTOREBASE_NEVER
= 0,
641 enum push_default_type
{
642 PUSH_DEFAULT_NOTHING
= 0,
643 PUSH_DEFAULT_MATCHING
,
644 PUSH_DEFAULT_UPSTREAM
,
648 extern enum branch_track git_branch_track
;
649 extern enum rebase_setup_type autorebase
;
650 extern enum push_default_type push_default
;
652 enum object_creation_mode
{
653 OBJECT_CREATION_USES_HARDLINKS
= 0,
654 OBJECT_CREATION_USES_RENAMES
= 1
657 extern enum object_creation_mode object_creation_mode
;
659 extern char *notes_ref_name
;
661 extern int grafts_replace_parents
;
663 #define GIT_REPO_VERSION 0
664 extern int repository_format_version
;
665 extern int check_repository_format(void);
667 #define MTIME_CHANGED 0x0001
668 #define CTIME_CHANGED 0x0002
669 #define OWNER_CHANGED 0x0004
670 #define MODE_CHANGED 0x0008
671 #define INODE_CHANGED 0x0010
672 #define DATA_CHANGED 0x0020
673 #define TYPE_CHANGED 0x0040
675 extern char *mksnpath(char *buf
, size_t n
, const char *fmt
, ...)
676 __attribute__((format (printf
, 3, 4)));
677 extern char *git_snpath(char *buf
, size_t n
, const char *fmt
, ...)
678 __attribute__((format (printf
, 3, 4)));
679 extern char *git_pathdup(const char *fmt
, ...)
680 __attribute__((format (printf
, 1, 2)));
682 /* Return a statically allocated filename matching the sha1 signature */
683 extern char *mkpath(const char *fmt
, ...) __attribute__((format (printf
, 1, 2)));
684 extern char *git_path(const char *fmt
, ...) __attribute__((format (printf
, 1, 2)));
685 extern char *git_path_submodule(const char *path
, const char *fmt
, ...)
686 __attribute__((format (printf
, 2, 3)));
688 extern char *sha1_file_name(const unsigned char *sha1
);
689 extern char *sha1_pack_name(const unsigned char *sha1
);
690 extern char *sha1_pack_index_name(const unsigned char *sha1
);
691 extern const char *find_unique_abbrev(const unsigned char *sha1
, int);
692 extern const unsigned char null_sha1
[20];
693 static inline int is_null_sha1(const unsigned char *sha1
)
695 return !memcmp(sha1
, null_sha1
, 20);
697 static inline int hashcmp(const unsigned char *sha1
, const unsigned char *sha2
)
699 return memcmp(sha1
, sha2
, 20);
701 static inline void hashcpy(unsigned char *sha_dst
, const unsigned char *sha_src
)
703 memcpy(sha_dst
, sha_src
, 20);
705 static inline void hashclr(unsigned char *hash
)
710 #define EMPTY_TREE_SHA1_HEX \
711 "4b825dc642cb6eb9a060e54bf8d69288fbee4904"
712 #define EMPTY_TREE_SHA1_BIN_LITERAL \
713 "\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" \
714 "\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04"
715 #define EMPTY_TREE_SHA1_BIN \
716 ((const unsigned char *) EMPTY_TREE_SHA1_BIN_LITERAL)
718 int git_mkstemp(char *path
, size_t n
, const char *template);
720 int git_mkstemps(char *path
, size_t n
, const char *template, int suffix_len
);
722 /* set default permissions by passing mode arguments to open(2) */
723 int git_mkstemps_mode(char *pattern
, int suffix_len
, int mode
);
724 int git_mkstemp_mode(char *pattern
, int mode
);
729 * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must
730 * not be changed. Old repositories have core.sharedrepository written in
731 * numeric format, and therefore these values are preserved for compatibility
737 OLD_PERM_EVERYBODY
= 2,
739 PERM_EVERYBODY
= 0664
741 int git_config_perm(const char *var
, const char *value
);
742 int set_shared_perm(const char *path
, int mode
);
743 #define adjust_shared_perm(path) set_shared_perm((path), 0)
744 int safe_create_leading_directories(char *path
);
745 int safe_create_leading_directories_const(const char *path
);
746 int mkdir_in_gitdir(const char *path
);
747 extern char *expand_user_path(const char *path
);
748 char *enter_repo(char *path
, int strict
);
749 static inline int is_absolute_path(const char *path
)
751 return path
[0] == '/' || has_dos_drive_prefix(path
);
753 int is_directory(const char *);
754 const char *real_path(const char *path
);
755 const char *absolute_path(const char *path
);
756 const char *relative_path(const char *abs
, const char *base
);
757 int normalize_path_copy(char *dst
, const char *src
);
758 int longest_ancestor_length(const char *path
, const char *prefix_list
);
759 char *strip_path_suffix(const char *path
, const char *suffix
);
760 int daemon_avoid_alias(const char *path
);
761 int offset_1st_component(const char *path
);
763 /* Read and unpack a sha1 file into memory, write memory to a sha1 file */
764 extern int sha1_object_info(const unsigned char *, unsigned long *);
765 extern void *read_sha1_file_repl(const unsigned char *sha1
, enum object_type
*type
, unsigned long *size
, const unsigned char **replacement
);
766 static inline void *read_sha1_file(const unsigned char *sha1
, enum object_type
*type
, unsigned long *size
)
768 return read_sha1_file_repl(sha1
, type
, size
, NULL
);
770 extern int hash_sha1_file(const void *buf
, unsigned long len
, const char *type
, unsigned char *sha1
);
771 extern int write_sha1_file(const void *buf
, unsigned long len
, const char *type
, unsigned char *return_sha1
);
772 extern int pretend_sha1_file(void *, unsigned long, enum object_type
, unsigned char *);
773 extern int force_object_loose(const unsigned char *sha1
, time_t mtime
);
775 /* global flag to enable extra checks when accessing packed objects */
776 extern int do_check_packed_object_crc
;
778 extern int check_sha1_signature(const unsigned char *sha1
, void *buf
, unsigned long size
, const char *type
);
780 extern int move_temp_to_file(const char *tmpfile
, const char *filename
);
782 extern int has_sha1_pack(const unsigned char *sha1
);
783 extern int has_sha1_file(const unsigned char *sha1
);
784 extern int has_loose_object_nonlocal(const unsigned char *sha1
);
786 extern int has_pack_index(const unsigned char *sha1
);
788 extern void assert_sha1_type(const unsigned char *sha1
, enum object_type expect
);
790 extern const signed char hexval_table
[256];
791 static inline unsigned int hexval(unsigned char c
)
793 return hexval_table
[c
];
796 /* Convert to/from hex/sha1 representation */
797 #define MINIMUM_ABBREV minimum_abbrev
798 #define DEFAULT_ABBREV default_abbrev
800 struct object_context
{
801 unsigned char tree
[20];
806 extern int get_sha1(const char *str
, unsigned char *sha1
);
807 extern int get_sha1_with_mode_1(const char *str
, unsigned char *sha1
, unsigned *mode
, int gently
, const char *prefix
);
808 static inline int get_sha1_with_mode(const char *str
, unsigned char *sha1
, unsigned *mode
)
810 return get_sha1_with_mode_1(str
, sha1
, mode
, 1, NULL
);
812 extern int get_sha1_with_context_1(const char *name
, unsigned char *sha1
, struct object_context
*orc
, int gently
, const char *prefix
);
813 static inline int get_sha1_with_context(const char *str
, unsigned char *sha1
, struct object_context
*orc
)
815 return get_sha1_with_context_1(str
, sha1
, orc
, 1, NULL
);
817 extern int get_sha1_hex(const char *hex
, unsigned char *sha1
);
818 extern char *sha1_to_hex(const unsigned char *sha1
); /* static buffer result! */
819 extern int read_ref(const char *filename
, unsigned char *sha1
);
820 extern const char *resolve_ref(const char *path
, unsigned char *sha1
, int, int *);
821 extern int dwim_ref(const char *str
, int len
, unsigned char *sha1
, char **ref
);
822 extern int dwim_log(const char *str
, int len
, unsigned char *sha1
, char **ref
);
823 extern int interpret_branch_name(const char *str
, struct strbuf
*);
824 extern int get_sha1_mb(const char *str
, unsigned char *sha1
);
826 extern int refname_match(const char *abbrev_name
, const char *full_name
, const char **rules
);
827 extern const char *ref_rev_parse_rules
[];
828 extern const char *ref_fetch_rules
[];
830 extern int create_symref(const char *ref
, const char *refs_heads_master
, const char *logmsg
);
831 extern int validate_headref(const char *ref
);
833 extern int base_name_compare(const char *name1
, int len1
, int mode1
, const char *name2
, int len2
, int mode2
);
834 extern int df_name_compare(const char *name1
, int len1
, int mode1
, const char *name2
, int len2
, int mode2
);
835 extern int cache_name_compare(const char *name1
, int len1
, const char *name2
, int len2
);
837 extern void *read_object_with_reference(const unsigned char *sha1
,
838 const char *required_type
,
840 unsigned char *sha1_ret
);
842 extern struct object
*peel_to_type(const char *name
, int namelen
,
843 struct object
*o
, enum object_type
);
855 const char *show_date(unsigned long time
, int timezone
, enum date_mode mode
);
856 const char *show_date_relative(unsigned long time
, int tz
,
857 const struct timeval
*now
,
859 size_t timebuf_size
);
860 int parse_date(const char *date
, char *buf
, int bufsize
);
861 int parse_date_basic(const char *date
, unsigned long *timestamp
, int *offset
);
862 void datestamp(char *buf
, int bufsize
);
863 #define approxidate(s) approxidate_careful((s), NULL)
864 unsigned long approxidate_careful(const char *, int *);
865 unsigned long approxidate_relative(const char *date
, const struct timeval
*now
);
866 enum date_mode
parse_date_format(const char *format
);
868 #define IDENT_WARN_ON_NO_NAME 1
869 #define IDENT_ERROR_ON_NO_NAME 2
870 #define IDENT_NO_DATE 4
871 extern const char *git_author_info(int);
872 extern const char *git_committer_info(int);
873 extern const char *fmt_ident(const char *name
, const char *email
, const char *date_str
, int);
874 extern const char *fmt_name(const char *name
, const char *email
);
875 extern const char *git_editor(void);
876 extern const char *git_pager(int stdout_is_tty
);
879 const char *base_dir
;
887 extern int checkout_entry(struct cache_entry
*ce
, const struct checkout
*state
, char *topath
);
890 char path
[PATH_MAX
+ 1];
894 int prefix_len_stat_func
;
897 extern int has_symlink_leading_path(const char *name
, int len
);
898 extern int threaded_has_symlink_leading_path(struct cache_def
*, const char *, int);
899 extern int check_leading_path(const char *name
, int len
);
900 extern int has_dirs_only_path(const char *name
, int len
, int prefix_len
);
901 extern void schedule_dir_for_removal(const char *name
, int len
);
902 extern void remove_scheduled_dirs(void);
904 extern struct alternate_object_database
{
905 struct alternate_object_database
*next
;
907 char base
[FLEX_ARRAY
]; /* more */
909 extern void prepare_alt_odb(void);
910 extern void add_to_alternates_file(const char *reference
);
911 typedef int alt_odb_fn(struct alternate_object_database
*, void *);
912 extern void foreach_alt_odb(alt_odb_fn
, void*);
915 struct pack_window
*next
;
919 unsigned int last_used
;
920 unsigned int inuse_cnt
;
923 extern struct packed_git
{
924 struct packed_git
*next
;
925 struct pack_window
*windows
;
927 const void *index_data
;
929 uint32_t num_objects
;
930 uint32_t num_bad_objects
;
931 unsigned char *bad_object_sha1
;
935 unsigned pack_local
:1,
938 unsigned char sha1
[20];
939 /* something like ".git/objects/pack/xxxxx.pack" */
940 char pack_name
[FLEX_ARRAY
]; /* more */
945 unsigned char sha1
[20];
946 struct packed_git
*p
;
951 unsigned char old_sha1
[20];
952 unsigned char new_sha1
[20];
954 unsigned int force
:1,
961 REF_STATUS_REJECT_NONFASTFORWARD
,
962 REF_STATUS_REJECT_NODELETE
,
964 REF_STATUS_REMOTE_REJECT
,
965 REF_STATUS_EXPECTING_REPORT
968 struct ref
*peer_ref
; /* when renaming */
969 char name
[FLEX_ARRAY
]; /* more */
972 #define REF_NORMAL (1u << 0)
973 #define REF_HEADS (1u << 1)
974 #define REF_TAGS (1u << 2)
976 extern struct ref
*find_ref_by_name(const struct ref
*list
, const char *name
);
978 #define CONNECT_VERBOSE (1u << 0)
979 extern char *git_getpass(const char *prompt
);
980 extern struct child_process
*git_connect(int fd
[2], const char *url
, const char *prog
, int flags
);
981 extern int finish_connect(struct child_process
*conn
);
982 extern int git_connection_is_socket(struct child_process
*conn
);
983 extern int path_match(const char *path
, int nr
, char **match
);
984 struct extra_have_objects
{
986 unsigned char (*array
)[20];
988 extern struct ref
**get_remote_heads(int in
, struct ref
**list
, int nr_match
, char **match
, unsigned int flags
, struct extra_have_objects
*);
989 extern int server_supports(const char *feature
);
991 extern struct packed_git
*parse_pack_index(unsigned char *sha1
, const char *idx_path
);
993 extern void prepare_packed_git(void);
994 extern void reprepare_packed_git(void);
995 extern void install_packed_git(struct packed_git
*pack
);
997 extern struct packed_git
*find_sha1_pack(const unsigned char *sha1
,
998 struct packed_git
*packs
);
1000 extern void pack_report(void);
1001 extern int open_pack_index(struct packed_git
*);
1002 extern void close_pack_index(struct packed_git
*);
1003 extern unsigned char *use_pack(struct packed_git
*, struct pack_window
**, off_t
, unsigned long *);
1004 extern void close_pack_windows(struct packed_git
*);
1005 extern void unuse_pack(struct pack_window
**);
1006 extern void free_pack_by_name(const char *);
1007 extern void clear_delta_base_cache(void);
1008 extern struct packed_git
*add_packed_git(const char *, int, int);
1009 extern const unsigned char *nth_packed_object_sha1(struct packed_git
*, uint32_t);
1010 extern off_t
nth_packed_object_offset(const struct packed_git
*, uint32_t);
1011 extern off_t
find_pack_entry_one(const unsigned char *, struct packed_git
*);
1012 extern void *unpack_entry(struct packed_git
*, off_t
, enum object_type
*, unsigned long *);
1013 extern unsigned long unpack_object_header_buffer(const unsigned char *buf
, unsigned long len
, enum object_type
*type
, unsigned long *sizep
);
1014 extern unsigned long get_size_from_delta(struct packed_git
*, struct pack_window
**, off_t
);
1015 extern const char *packed_object_info_detail(struct packed_git
*, off_t
, unsigned long *, unsigned long *, unsigned int *, unsigned char *);
1017 /* Dumb servers support */
1018 extern int update_server_info(int);
1020 typedef int (*config_fn_t
)(const char *, const char *, void *);
1021 extern int git_default_config(const char *, const char *, void *);
1022 extern int git_config_from_file(config_fn_t fn
, const char *, void *);
1023 extern void git_config_push_parameter(const char *text
);
1024 extern int git_config_from_parameters(config_fn_t fn
, void *data
);
1025 extern int git_config(config_fn_t fn
, void *);
1026 extern int git_config_early(config_fn_t fn
, void *, const char *repo_config
);
1027 extern int git_parse_ulong(const char *, unsigned long *);
1028 extern int git_config_int(const char *, const char *);
1029 extern unsigned long git_config_ulong(const char *, const char *);
1030 extern int git_config_bool_or_int(const char *, const char *, int *);
1031 extern int git_config_bool(const char *, const char *);
1032 extern int git_config_maybe_bool(const char *, const char *);
1033 extern int git_config_string(const char **, const char *, const char *);
1034 extern int git_config_pathname(const char **, const char *, const char *);
1035 extern int git_config_set(const char *, const char *);
1036 extern int git_config_parse_key(const char *, char **, int *);
1037 extern int git_config_set_multivar(const char *, const char *, const char *, int);
1038 extern int git_config_rename_section(const char *, const char *);
1039 extern const char *git_etc_gitconfig(void);
1040 extern int check_repository_format_version(const char *var
, const char *value
, void *cb
);
1041 extern int git_env_bool(const char *, int);
1042 extern int git_config_system(void);
1043 extern int config_error_nonbool(const char *);
1044 extern const char *get_log_output_encoding(void);
1045 extern const char *get_commit_output_encoding(void);
1047 extern const char *config_exclusive_filename
;
1049 #define MAX_GITNAME (1000)
1050 extern char git_default_email
[MAX_GITNAME
];
1051 extern char git_default_name
[MAX_GITNAME
];
1052 #define IDENT_NAME_GIVEN 01
1053 #define IDENT_MAIL_GIVEN 02
1054 #define IDENT_ALL_GIVEN (IDENT_NAME_GIVEN|IDENT_MAIL_GIVEN)
1055 extern int user_ident_explicitly_given
;
1056 extern int user_ident_sufficiently_given(void);
1058 extern const char *git_commit_encoding
;
1059 extern const char *git_log_output_encoding
;
1060 extern const char *git_mailmap_file
;
1062 /* IO helper functions */
1063 extern void maybe_flush_or_die(FILE *, const char *);
1064 extern int copy_fd(int ifd
, int ofd
);
1065 extern int copy_file(const char *dst
, const char *src
, int mode
);
1066 extern int copy_file_with_time(const char *dst
, const char *src
, int mode
);
1067 extern void write_or_die(int fd
, const void *buf
, size_t count
);
1068 extern int write_or_whine(int fd
, const void *buf
, size_t count
, const char *msg
);
1069 extern int write_or_whine_pipe(int fd
, const void *buf
, size_t count
, const char *msg
);
1070 extern void fsync_or_die(int fd
, const char *);
1072 extern ssize_t
read_in_full(int fd
, void *buf
, size_t count
);
1073 extern ssize_t
write_in_full(int fd
, const void *buf
, size_t count
);
1074 static inline ssize_t
write_str_in_full(int fd
, const char *str
)
1076 return write_in_full(fd
, str
, strlen(str
));
1080 extern void setup_pager(void);
1081 extern const char *pager_program
;
1082 extern int pager_in_use(void);
1083 extern int pager_use_color
;
1085 extern const char *editor_program
;
1086 extern const char *askpass_program
;
1087 extern const char *excludes_file
;
1090 int decode_85(char *dst
, const char *line
, int linelen
);
1091 void encode_85(char *buf
, const unsigned char *data
, int bytes
);
1094 extern void *alloc_blob_node(void);
1095 extern void *alloc_tree_node(void);
1096 extern void *alloc_commit_node(void);
1097 extern void *alloc_tag_node(void);
1098 extern void *alloc_object_node(void);
1099 extern void alloc_report(void);
1102 __attribute__((format (printf
, 1, 2)))
1103 extern void trace_printf(const char *format
, ...);
1104 extern void trace_vprintf(const char *key
, const char *format
, va_list ap
);
1105 __attribute__((format (printf
, 2, 3)))
1106 extern void trace_argv_printf(const char **argv
, const char *format
, ...);
1107 extern void trace_repo_setup(const char *prefix
);
1108 extern int trace_want(const char *key
);
1109 extern void trace_strbuf(const char *key
, const struct strbuf
*buf
);
1111 void packet_trace_identity(const char *prog
);
1114 /* returns 1 if *dst was used */
1115 extern int convert_to_git(const char *path
, const char *src
, size_t len
,
1116 struct strbuf
*dst
, enum safe_crlf checksafe
);
1117 extern int convert_to_working_tree(const char *path
, const char *src
, size_t len
, struct strbuf
*dst
);
1118 extern int renormalize_buffer(const char *path
, const char *src
, size_t len
, struct strbuf
*dst
);
1122 * return 0 if success, 1 - if addition of a file failed and
1123 * ADD_FILES_IGNORE_ERRORS was specified in flags
1125 int add_files_to_cache(const char *prefix
, const char **pathspec
, int flags
);
1128 extern int diff_auto_refresh_index
;
1131 void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
1132 void shift_tree_by(const unsigned char *, const unsigned char *, unsigned char *, const char *);
1136 * used by both diff and apply
1137 * last two digits are tab width
1139 #define WS_BLANK_AT_EOL 0100
1140 #define WS_SPACE_BEFORE_TAB 0200
1141 #define WS_INDENT_WITH_NON_TAB 0400
1142 #define WS_CR_AT_EOL 01000
1143 #define WS_BLANK_AT_EOF 02000
1144 #define WS_TAB_IN_INDENT 04000
1145 #define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF)
1146 #define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|8)
1147 #define WS_TAB_WIDTH_MASK 077
1148 extern unsigned whitespace_rule_cfg
;
1149 extern unsigned whitespace_rule(const char *);
1150 extern unsigned parse_whitespace_rule(const char *);
1151 extern unsigned ws_check(const char *line
, int len
, unsigned ws_rule
);
1152 extern void ws_check_emit(const char *line
, int len
, unsigned ws_rule
, FILE *stream
, const char *set
, const char *reset
, const char *ws
);
1153 extern char *whitespace_error_string(unsigned ws
);
1154 extern void ws_fix_copy(struct strbuf
*, const char *, int, unsigned, int *);
1155 extern int ws_blank_line(const char *line
, int len
, unsigned ws_rule
);
1156 #define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK)
1159 int report_path_error(const char *ps_matched
, const char **pathspec
, int prefix_offset
);
1160 void overlay_tree_on_cache(const char *tree_name
, const char *prefix
);
1162 char *alias_lookup(const char *alias
);
1163 int split_cmdline(char *cmdline
, const char ***argv
);
1164 /* Takes a negative value returned by split_cmdline */
1165 const char *split_cmdline_strerror(int cmdline_errno
);
1168 struct startup_info
{
1169 int have_repository
;
1172 extern struct startup_info
*startup_info
;
1174 /* builtin/merge.c */
1175 int checkout_fast_forward(const unsigned char *from
, const unsigned char *to
);
1177 #endif /* CACHE_H */