4 #include "git-compat-util.h"
13 #define git_SHA_CTX SHA_CTX
14 #define git_SHA1_Init SHA1_Init
15 #define git_SHA1_Update SHA1_Update
16 #define git_SHA1_Final SHA1_Final
20 typedef struct git_zstream
{
22 unsigned long avail_in
;
23 unsigned long avail_out
;
24 unsigned long total_in
;
25 unsigned long total_out
;
26 unsigned char *next_in
;
27 unsigned char *next_out
;
30 void git_inflate_init(git_zstream
*);
31 void git_inflate_init_gzip_only(git_zstream
*);
32 void git_inflate_end(git_zstream
*);
33 int git_inflate(git_zstream
*, int flush
);
35 void git_deflate_init(git_zstream
*, int level
);
36 void git_deflate_init_gzip(git_zstream
*, int level
);
37 void git_deflate_init_raw(git_zstream
*, int level
);
38 void git_deflate_end(git_zstream
*);
39 int git_deflate_abort(git_zstream
*);
40 int git_deflate_end_gently(git_zstream
*);
41 int git_deflate(git_zstream
*, int flush
);
42 unsigned long git_deflate_bound(git_zstream
*, unsigned long);
44 #if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT)
45 #define DTYPE(de) ((de)->d_type)
55 #define DTYPE(de) DT_UNKNOWN
58 /* unknown mode (impossible combination S_IFIFO|S_IFCHR) */
59 #define S_IFINVALID 0030000
62 * A "directory link" is a link to another git directory.
64 * The value 0160000 is not normally a valid mode, and
65 * also just happens to be S_IFDIR + S_IFLNK
67 * NOTE! We *really* shouldn't depend on the S_IFxxx macros
68 * always having the same values everywhere. We should use
69 * our internal git values for these things, and then we can
70 * translate that to the OS-specific value. It just so
71 * happens that everybody shares the same bit representation
72 * in the UNIX world (and apparently wider too..)
74 #define S_IFGITLINK 0160000
75 #define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK)
78 * Some mode bits are also used internally for computations.
80 * They *must* not overlap with any valid modes, and they *must* not be emitted
81 * to outside world - i.e. appear on disk or network. In other words, it's just
82 * temporary fields, which we internally use, but they have to stay in-house.
84 * ( such approach is valid, as standard S_IF* fits into 16 bits, and in Git
85 * codebase mode is `unsigned int` which is assumed to be at least 32 bits )
88 /* used internally in tree-diff */
89 #define S_DIFFTREE_IFXMIN_NEQ 0x80000000
93 * Intensive research over the course of many years has shown that
94 * port 9418 is totally unused by anything else. Or
96 * Your search - "port 9418" - did not match any documents.
98 * as www.google.com puts it.
100 * This port has been properly assigned for git use by IANA:
101 * git (Assigned-9418) [I06-050728-0001].
103 * git 9418/tcp git pack transfer service
104 * git 9418/udp git pack transfer service
106 * with Linus Torvalds <torvalds@osdl.org> as the point of
107 * contact. September 2005.
109 * See http://www.iana.org/assignments/port-numbers
111 #define DEFAULT_GIT_PORT 9418
114 * Basic data structures for the directory cache
117 #define CACHE_SIGNATURE 0x44495243 /* "DIRC" */
118 struct cache_header
{
119 uint32_t hdr_signature
;
120 uint32_t hdr_version
;
121 uint32_t hdr_entries
;
124 #define INDEX_FORMAT_LB 2
125 #define INDEX_FORMAT_UB 4
128 * The "cache_time" is just the low 32 bits of the
129 * time. It doesn't matter if it overflows - we only
130 * check it for equality in the 32 bits we save.
138 struct cache_time sd_ctime
;
139 struct cache_time sd_mtime
;
144 unsigned int sd_size
;
148 struct hashmap_entry ent
;
149 struct stat_data ce_stat_data
;
150 unsigned int ce_mode
;
151 unsigned int ce_flags
;
152 unsigned int ce_namelen
;
153 unsigned char sha1
[20];
154 char name
[FLEX_ARRAY
]; /* more */
157 #define CE_STAGEMASK (0x3000)
158 #define CE_EXTENDED (0x4000)
159 #define CE_VALID (0x8000)
160 #define CE_STAGESHIFT 12
163 * Range 0xFFFF0000 in ce_flags is divided into
164 * two parts: in-memory flags and on-disk ones.
165 * Flags in CE_EXTENDED_FLAGS will get saved on-disk
166 * if you want to save a new flag, add it in
169 * In-memory only flags
171 #define CE_UPDATE (1 << 16)
172 #define CE_REMOVE (1 << 17)
173 #define CE_UPTODATE (1 << 18)
174 #define CE_ADDED (1 << 19)
176 #define CE_HASHED (1 << 20)
177 #define CE_WT_REMOVE (1 << 22) /* remove in work directory */
178 #define CE_CONFLICTED (1 << 23)
180 #define CE_UNPACKED (1 << 24)
181 #define CE_NEW_SKIP_WORKTREE (1 << 25)
183 /* used to temporarily mark paths matched by pathspecs */
184 #define CE_MATCHED (1 << 26)
187 * Extended on-disk flags
189 #define CE_INTENT_TO_ADD (1 << 29)
190 #define CE_SKIP_WORKTREE (1 << 30)
191 /* CE_EXTENDED2 is for future extension */
192 #define CE_EXTENDED2 (1 << 31)
194 #define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD | CE_SKIP_WORKTREE)
197 * Safeguard to avoid saving wrong flags:
198 * - CE_EXTENDED2 won't get saved until its semantic is known
199 * - Bits in 0x0000FFFF have been saved in ce_flags already
200 * - Bits in 0x003F0000 are currently in-memory flags
202 #if CE_EXTENDED_FLAGS & 0x803FFFFF
203 #error "CE_EXTENDED_FLAGS out of range"
209 * Copy the sha1 and stat state of a cache entry from one to
210 * another. But we never change the name, or the hash state!
212 static inline void copy_cache_entry(struct cache_entry
*dst
,
213 const struct cache_entry
*src
)
215 unsigned int state
= dst
->ce_flags
& CE_HASHED
;
217 /* Don't copy hash chain and name */
218 memcpy(&dst
->ce_stat_data
, &src
->ce_stat_data
,
219 offsetof(struct cache_entry
, name
) -
220 offsetof(struct cache_entry
, ce_stat_data
));
222 /* Restore the hash state */
223 dst
->ce_flags
= (dst
->ce_flags
& ~CE_HASHED
) | state
;
226 static inline unsigned create_ce_flags(unsigned stage
)
228 return (stage
<< CE_STAGESHIFT
);
231 #define ce_namelen(ce) ((ce)->ce_namelen)
232 #define ce_size(ce) cache_entry_size(ce_namelen(ce))
233 #define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT)
234 #define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE)
235 #define ce_skip_worktree(ce) ((ce)->ce_flags & CE_SKIP_WORKTREE)
236 #define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE)
238 #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644)
239 static inline unsigned int create_ce_mode(unsigned int mode
)
243 if (S_ISDIR(mode
) || S_ISGITLINK(mode
))
245 return S_IFREG
| ce_permissions(mode
);
247 static inline unsigned int ce_mode_from_stat(const struct cache_entry
*ce
,
250 extern int trust_executable_bit
, has_symlinks
;
251 if (!has_symlinks
&& S_ISREG(mode
) &&
252 ce
&& S_ISLNK(ce
->ce_mode
))
254 if (!trust_executable_bit
&& S_ISREG(mode
)) {
255 if (ce
&& S_ISREG(ce
->ce_mode
))
257 return create_ce_mode(0666);
259 return create_ce_mode(mode
);
261 static inline int ce_to_dtype(const struct cache_entry
*ce
)
263 unsigned ce_mode
= ntohl(ce
->ce_mode
);
264 if (S_ISREG(ce_mode
))
266 else if (S_ISDIR(ce_mode
) || S_ISGITLINK(ce_mode
))
268 else if (S_ISLNK(ce_mode
))
273 static inline unsigned int canon_mode(unsigned int mode
)
276 return S_IFREG
| ce_permissions(mode
);
284 #define cache_entry_size(len) (offsetof(struct cache_entry,name) + (len) + 1)
287 struct cache_entry
**cache
;
288 unsigned int version
;
289 unsigned int cache_nr
, cache_alloc
, cache_changed
;
290 struct string_list
*resolve_undo
;
291 struct cache_tree
*cache_tree
;
292 struct cache_time timestamp
;
293 unsigned name_hash_initialized
: 1,
295 struct hashmap name_hash
;
296 struct hashmap dir_hash
;
297 unsigned char sha1
[20];
300 extern struct index_state the_index
;
303 extern void add_name_hash(struct index_state
*istate
, struct cache_entry
*ce
);
304 extern void remove_name_hash(struct index_state
*istate
, struct cache_entry
*ce
);
305 extern void free_name_hash(struct index_state
*istate
);
308 #ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
309 #define active_cache (the_index.cache)
310 #define active_nr (the_index.cache_nr)
311 #define active_alloc (the_index.cache_alloc)
312 #define active_cache_changed (the_index.cache_changed)
313 #define active_cache_tree (the_index.cache_tree)
315 #define read_cache() read_index(&the_index)
316 #define read_cache_from(path) read_index_from(&the_index, (path))
317 #define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec))
318 #define is_cache_unborn() is_index_unborn(&the_index)
319 #define read_cache_unmerged() read_index_unmerged(&the_index)
320 #define write_cache(newfd, cache, entries) write_index(&the_index, (newfd))
321 #define discard_cache() discard_index(&the_index)
322 #define unmerged_cache() unmerged_index(&the_index)
323 #define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen))
324 #define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option))
325 #define rename_cache_entry_at(pos, new_name) rename_index_entry_at(&the_index, (pos), (new_name))
326 #define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos))
327 #define remove_file_from_cache(path) remove_file_from_index(&the_index, (path))
328 #define add_to_cache(path, st, flags) add_to_index(&the_index, (path), (st), (flags))
329 #define add_file_to_cache(path, flags) add_file_to_index(&the_index, (path), (flags))
330 #define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL)
331 #define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options))
332 #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
333 #define cache_dir_exists(name, namelen) index_dir_exists(&the_index, (name), (namelen))
334 #define cache_file_exists(name, namelen, igncase) index_file_exists(&the_index, (name), (namelen), (igncase))
335 #define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen))
336 #define resolve_undo_clear() resolve_undo_clear_index(&the_index)
337 #define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at)
338 #define unmerge_cache(pathspec) unmerge_index(&the_index, pathspec)
339 #define read_blob_data_from_cache(path, sz) read_blob_data_from_index(&the_index, (path), (sz))
349 /* 5 for future expansion */
356 static inline enum object_type
object_type(unsigned int mode
)
358 return S_ISDIR(mode
) ? OBJ_TREE
:
359 S_ISGITLINK(mode
) ? OBJ_COMMIT
:
363 /* Double-check local_repo_env below if you add to this list. */
364 #define GIT_DIR_ENVIRONMENT "GIT_DIR"
365 #define GIT_NAMESPACE_ENVIRONMENT "GIT_NAMESPACE"
366 #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
367 #define GIT_PREFIX_ENVIRONMENT "GIT_PREFIX"
368 #define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
369 #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
370 #define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
371 #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
372 #define GIT_SHALLOW_FILE_ENVIRONMENT "GIT_SHALLOW_FILE"
373 #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR"
374 #define CONFIG_ENVIRONMENT "GIT_CONFIG"
375 #define CONFIG_DATA_ENVIRONMENT "GIT_CONFIG_PARAMETERS"
376 #define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH"
377 #define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES"
378 #define NO_REPLACE_OBJECTS_ENVIRONMENT "GIT_NO_REPLACE_OBJECTS"
379 #define GITATTRIBUTES_FILE ".gitattributes"
380 #define INFOATTRIBUTES_FILE "info/attributes"
381 #define ATTRIBUTE_MACRO_PREFIX "[attr]"
382 #define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF"
383 #define GIT_NOTES_DEFAULT_REF "refs/notes/commits"
384 #define GIT_NOTES_DISPLAY_REF_ENVIRONMENT "GIT_NOTES_DISPLAY_REF"
385 #define GIT_NOTES_REWRITE_REF_ENVIRONMENT "GIT_NOTES_REWRITE_REF"
386 #define GIT_NOTES_REWRITE_MODE_ENVIRONMENT "GIT_NOTES_REWRITE_MODE"
387 #define GIT_LITERAL_PATHSPECS_ENVIRONMENT "GIT_LITERAL_PATHSPECS"
388 #define GIT_GLOB_PATHSPECS_ENVIRONMENT "GIT_GLOB_PATHSPECS"
389 #define GIT_NOGLOB_PATHSPECS_ENVIRONMENT "GIT_NOGLOB_PATHSPECS"
390 #define GIT_ICASE_PATHSPECS_ENVIRONMENT "GIT_ICASE_PATHSPECS"
393 * This environment variable is expected to contain a boolean indicating
394 * whether we should or should not treat:
396 * GIT_DIR=foo.git git ...
398 * as if GIT_WORK_TREE=. was given. It's not expected that users will make use
399 * of this, but we use it internally to communicate to sub-processes that we
400 * are in a bare repo. If not set, defaults to true.
402 #define GIT_IMPLICIT_WORK_TREE_ENVIRONMENT "GIT_IMPLICIT_WORK_TREE"
405 * Repository-local GIT_* environment variables; these will be cleared
406 * when git spawns a sub-process that runs inside another repository.
407 * The array is NULL-terminated, which makes it easy to pass in the "env"
408 * parameter of a run-command invocation, or to do a simple walk.
410 extern const char * const local_repo_env
[];
412 extern int is_bare_repository_cfg
;
413 extern int is_bare_repository(void);
414 extern int is_inside_git_dir(void);
415 extern char *git_work_tree_cfg
;
416 extern int is_inside_work_tree(void);
417 extern const char *get_git_dir(void);
418 extern int is_git_directory(const char *path
);
419 extern char *get_object_directory(void);
420 extern char *get_index_file(void);
421 extern char *get_graft_file(void);
422 extern int set_git_dir(const char *path
);
423 extern const char *get_git_namespace(void);
424 extern const char *strip_namespace(const char *namespaced_ref
);
425 extern const char *get_git_work_tree(void);
426 extern const char *read_gitfile(const char *path
);
427 extern const char *resolve_gitdir(const char *suspect
);
428 extern void set_git_work_tree(const char *tree
);
430 #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
432 extern const char **get_pathspec(const char *prefix
, const char **pathspec
);
433 extern void setup_work_tree(void);
434 extern const char *setup_git_directory_gently(int *);
435 extern const char *setup_git_directory(void);
436 extern char *prefix_path(const char *prefix
, int len
, const char *path
);
437 extern char *prefix_path_gently(const char *prefix
, int len
, int *remaining
, const char *path
);
438 extern const char *prefix_filename(const char *prefix
, int len
, const char *path
);
439 extern int check_filename(const char *prefix
, const char *name
);
440 extern void verify_filename(const char *prefix
,
442 int diagnose_misspelt_rev
);
443 extern void verify_non_filename(const char *prefix
, const char *name
);
444 extern int path_inside_repo(const char *prefix
, const char *path
);
446 #define INIT_DB_QUIET 0x0001
448 extern int set_git_dir_init(const char *git_dir
, const char *real_git_dir
, int);
449 extern int init_db(const char *template_dir
, unsigned int flags
);
451 extern void sanitize_stdfds(void);
452 extern int daemonize(void);
454 #define alloc_nr(x) (((x)+16)*3/2)
457 * Realloc the buffer pointed at by variable 'x' so that it can hold
458 * at least 'nr' entries; the number of entries currently allocated
459 * is 'alloc', using the standard growing factor alloc_nr() macro.
461 * DO NOT USE any expression with side-effect for 'x', 'nr', or 'alloc'.
463 #define ALLOC_GROW(x, nr, alloc) \
465 if ((nr) > alloc) { \
466 if (alloc_nr(alloc) < (nr)) \
469 alloc = alloc_nr(alloc); \
470 x = xrealloc((x), alloc * sizeof(*(x))); \
474 /* Initialize and use the cache information */
475 extern int read_index(struct index_state
*);
476 extern int read_index_preload(struct index_state
*, const struct pathspec
*pathspec
);
477 extern int read_index_from(struct index_state
*, const char *path
);
478 extern int is_index_unborn(struct index_state
*);
479 extern int read_index_unmerged(struct index_state
*);
480 extern int write_index(struct index_state
*, int newfd
);
481 extern int discard_index(struct index_state
*);
482 extern int unmerged_index(const struct index_state
*);
483 extern int verify_path(const char *path
);
484 extern struct cache_entry
*index_dir_exists(struct index_state
*istate
, const char *name
, int namelen
);
485 extern struct cache_entry
*index_file_exists(struct index_state
*istate
, const char *name
, int namelen
, int igncase
);
486 extern int index_name_pos(const struct index_state
*, const char *name
, int namelen
);
487 #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
488 #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
489 #define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
490 #define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
491 #define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */
492 extern int add_index_entry(struct index_state
*, struct cache_entry
*ce
, int option
);
493 extern void rename_index_entry_at(struct index_state
*, int pos
, const char *new_name
);
494 extern int remove_index_entry_at(struct index_state
*, int pos
);
495 extern void remove_marked_cache_entries(struct index_state
*istate
);
496 extern int remove_file_from_index(struct index_state
*, const char *path
);
497 #define ADD_CACHE_VERBOSE 1
498 #define ADD_CACHE_PRETEND 2
499 #define ADD_CACHE_IGNORE_ERRORS 4
500 #define ADD_CACHE_IGNORE_REMOVAL 8
501 #define ADD_CACHE_INTENT 16
502 extern int add_to_index(struct index_state
*, const char *path
, struct stat
*, int flags
);
503 extern int add_file_to_index(struct index_state
*, const char *path
, int flags
);
504 extern struct cache_entry
*make_cache_entry(unsigned int mode
, const unsigned char *sha1
, const char *path
, int stage
, unsigned int refresh_options
);
505 extern int ce_same_name(const struct cache_entry
*a
, const struct cache_entry
*b
);
506 extern void set_object_name_for_intent_to_add_entry(struct cache_entry
*ce
);
507 extern int index_name_is_other(const struct index_state
*, const char *, int);
508 extern void *read_blob_data_from_index(struct index_state
*, const char *, unsigned long *);
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 /* ignore non-existent files during stat update */
517 #define CE_MATCH_IGNORE_MISSING 0x08
518 /* enable stat refresh */
519 #define CE_MATCH_REFRESH 0x10
520 extern int ie_match_stat(const struct index_state
*, const struct cache_entry
*, struct stat
*, unsigned int);
521 extern int ie_modified(const struct index_state
*, const struct cache_entry
*, struct stat
*, unsigned int);
523 #define HASH_WRITE_OBJECT 1
524 #define HASH_FORMAT_CHECK 2
525 extern int index_fd(unsigned char *sha1
, int fd
, struct stat
*st
, enum object_type type
, const char *path
, unsigned flags
);
526 extern int index_path(unsigned char *sha1
, const char *path
, struct stat
*st
, unsigned flags
);
529 * Record to sd the data from st that we use to check whether a file
530 * might have changed.
532 extern void fill_stat_data(struct stat_data
*sd
, struct stat
*st
);
535 * Return 0 if st is consistent with a file not having been changed
536 * since sd was filled. If there are differences, return a
537 * combination of MTIME_CHANGED, CTIME_CHANGED, OWNER_CHANGED,
538 * INODE_CHANGED, and DATA_CHANGED.
540 extern int match_stat_data(const struct stat_data
*sd
, struct stat
*st
);
542 extern void fill_stat_cache_info(struct cache_entry
*ce
, struct stat
*st
);
544 #define REFRESH_REALLY 0x0001 /* ignore_valid */
545 #define REFRESH_UNMERGED 0x0002 /* allow unmerged */
546 #define REFRESH_QUIET 0x0004 /* be quiet about it */
547 #define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */
548 #define REFRESH_IGNORE_SUBMODULES 0x0010 /* ignore submodules */
549 #define REFRESH_IN_PORCELAIN 0x0020 /* user friendly output, not "needs update" */
550 extern int refresh_index(struct index_state
*, unsigned int flags
, const struct pathspec
*pathspec
, char *seen
, const char *header_msg
);
553 struct lock_file
*next
;
557 char filename
[PATH_MAX
];
559 #define LOCK_DIE_ON_ERROR 1
560 #define LOCK_NODEREF 2
561 extern int unable_to_lock_error(const char *path
, int err
);
562 extern void unable_to_lock_message(const char *path
, int err
,
564 extern NORETURN
void unable_to_lock_index_die(const char *path
, int err
);
565 extern int hold_lock_file_for_update(struct lock_file
*, const char *path
, int);
566 extern int hold_lock_file_for_append(struct lock_file
*, const char *path
, int);
567 extern int commit_lock_file(struct lock_file
*);
568 extern void update_index_if_able(struct index_state
*, struct lock_file
*);
570 extern int hold_locked_index(struct lock_file
*, int);
571 extern int commit_locked_index(struct lock_file
*);
572 extern void set_alternate_index_output(const char *);
573 extern int close_lock_file(struct lock_file
*);
574 extern void rollback_lock_file(struct lock_file
*);
575 extern int delete_ref(const char *, const unsigned char *sha1
, int delopt
);
577 /* Environment bits from configuration mechanism */
578 extern int trust_executable_bit
;
579 extern int trust_ctime
;
580 extern int check_stat
;
581 extern int quote_path_fully
;
582 extern int has_symlinks
;
583 extern int minimum_abbrev
, default_abbrev
;
584 extern int ignore_case
;
585 extern int assume_unchanged
;
586 extern int prefer_symlink_refs
;
587 extern int log_all_ref_updates
;
588 extern int warn_ambiguous_refs
;
589 extern int warn_on_object_refname_ambiguity
;
590 extern int shared_repository
;
591 extern const char *apply_default_whitespace
;
592 extern const char *apply_default_ignorewhitespace
;
593 extern const char *git_attributes_file
;
594 extern int zlib_compression_level
;
595 extern int core_compression_level
;
596 extern int core_compression_seen
;
597 extern size_t packed_git_window_size
;
598 extern size_t packed_git_limit
;
599 extern size_t delta_base_cache_limit
;
600 extern unsigned long big_file_threshold
;
601 extern unsigned long pack_size_limit_cfg
;
604 * Do replace refs need to be checked this run? This variable is
605 * initialized to true unless --no-replace-object is used or
606 * $GIT_NO_REPLACE_OBJECTS is set, but is set to false by some
607 * commands that do not want replace references to be active. As an
608 * optimization it is also set to false if replace references have
609 * been sought but there were none.
611 extern int check_replace_refs
;
613 extern int fsync_object_files
;
614 extern int core_preload_index
;
615 extern int core_apply_sparse_checkout
;
616 extern int precomposed_unicode
;
619 * The character that begins a commented line in user-editable file
620 * that is subject to stripspace.
622 extern char comment_line_char
;
623 extern int auto_comment_line_char
;
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
,
645 PUSH_DEFAULT_UPSTREAM
,
646 PUSH_DEFAULT_CURRENT
,
647 PUSH_DEFAULT_UNSPECIFIED
650 extern enum branch_track git_branch_track
;
651 extern enum rebase_setup_type autorebase
;
652 extern enum push_default_type push_default
;
654 enum object_creation_mode
{
655 OBJECT_CREATION_USES_HARDLINKS
= 0,
656 OBJECT_CREATION_USES_RENAMES
= 1
659 extern enum object_creation_mode object_creation_mode
;
661 extern char *notes_ref_name
;
663 extern int grafts_replace_parents
;
665 #define GIT_REPO_VERSION 0
666 extern int repository_format_version
;
667 extern int check_repository_format(void);
669 #define MTIME_CHANGED 0x0001
670 #define CTIME_CHANGED 0x0002
671 #define OWNER_CHANGED 0x0004
672 #define MODE_CHANGED 0x0008
673 #define INODE_CHANGED 0x0010
674 #define DATA_CHANGED 0x0020
675 #define TYPE_CHANGED 0x0040
677 extern char *mksnpath(char *buf
, size_t n
, const char *fmt
, ...)
678 __attribute__((format (printf
, 3, 4)));
679 extern char *git_snpath(char *buf
, size_t n
, const char *fmt
, ...)
680 __attribute__((format (printf
, 3, 4)));
681 extern char *git_pathdup(const char *fmt
, ...)
682 __attribute__((format (printf
, 1, 2)));
683 extern char *mkpathdup(const char *fmt
, ...)
684 __attribute__((format (printf
, 1, 2)));
686 /* Return a statically allocated filename matching the sha1 signature */
687 extern char *mkpath(const char *fmt
, ...) __attribute__((format (printf
, 1, 2)));
688 extern char *git_path(const char *fmt
, ...) __attribute__((format (printf
, 1, 2)));
689 extern char *git_path_submodule(const char *path
, const char *fmt
, ...)
690 __attribute__((format (printf
, 2, 3)));
693 * Return the name of the file in the local object database that would
694 * be used to store a loose object with the specified sha1. The
695 * return value is a pointer to a statically allocated buffer that is
696 * overwritten each time the function is called.
698 extern const char *sha1_file_name(const unsigned char *sha1
);
701 * Return the name of the (local) packfile with the specified sha1 in
702 * its name. The return value is a pointer to memory that is
703 * overwritten each time this function is called.
705 extern char *sha1_pack_name(const unsigned char *sha1
);
708 * Return the name of the (local) pack index file with the specified
709 * sha1 in its name. The return value is a pointer to memory that is
710 * overwritten each time this function is called.
712 extern char *sha1_pack_index_name(const unsigned char *sha1
);
714 extern const char *find_unique_abbrev(const unsigned char *sha1
, int);
715 extern const unsigned char null_sha1
[20];
717 static inline int hashcmp(const unsigned char *sha1
, const unsigned char *sha2
)
721 for (i
= 0; i
< 20; i
++, sha1
++, sha2
++) {
723 return *sha1
- *sha2
;
729 static inline int is_null_sha1(const unsigned char *sha1
)
731 return !hashcmp(sha1
, null_sha1
);
734 static inline void hashcpy(unsigned char *sha_dst
, const unsigned char *sha_src
)
736 memcpy(sha_dst
, sha_src
, 20);
738 static inline void hashclr(unsigned char *hash
)
743 #define EMPTY_TREE_SHA1_HEX \
744 "4b825dc642cb6eb9a060e54bf8d69288fbee4904"
745 #define EMPTY_TREE_SHA1_BIN_LITERAL \
746 "\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" \
747 "\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04"
748 #define EMPTY_TREE_SHA1_BIN \
749 ((const unsigned char *) EMPTY_TREE_SHA1_BIN_LITERAL)
751 #define EMPTY_BLOB_SHA1_HEX \
752 "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391"
753 #define EMPTY_BLOB_SHA1_BIN_LITERAL \
754 "\xe6\x9d\xe2\x9b\xb2\xd1\xd6\x43\x4b\x8b" \
755 "\x29\xae\x77\x5a\xd8\xc2\xe4\x8c\x53\x91"
756 #define EMPTY_BLOB_SHA1_BIN \
757 ((const unsigned char *) EMPTY_BLOB_SHA1_BIN_LITERAL)
759 static inline int is_empty_blob_sha1(const unsigned char *sha1
)
761 return !hashcmp(sha1
, EMPTY_BLOB_SHA1_BIN
);
764 int git_mkstemp(char *path
, size_t n
, const char *template);
766 int git_mkstemps(char *path
, size_t n
, const char *template, int suffix_len
);
768 /* set default permissions by passing mode arguments to open(2) */
769 int git_mkstemps_mode(char *pattern
, int suffix_len
, int mode
);
770 int git_mkstemp_mode(char *pattern
, int mode
);
775 * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must
776 * not be changed. Old repositories have core.sharedrepository written in
777 * numeric format, and therefore these values are preserved for compatibility
783 OLD_PERM_EVERYBODY
= 2,
785 PERM_EVERYBODY
= 0664
787 int git_config_perm(const char *var
, const char *value
);
788 int adjust_shared_perm(const char *path
);
791 * Create the directory containing the named path, using care to be
792 * somewhat safe against races. Return one of the scld_error values
793 * to indicate success/failure.
795 * SCLD_VANISHED indicates that one of the ancestor directories of the
796 * path existed at one point during the function call and then
797 * suddenly vanished, probably because another process pruned the
798 * directory while we were working. To be robust against this kind of
799 * race, callers might want to try invoking the function again when it
800 * returns SCLD_VANISHED.
809 enum scld_error
safe_create_leading_directories(char *path
);
810 enum scld_error
safe_create_leading_directories_const(const char *path
);
812 int mkdir_in_gitdir(const char *path
);
813 extern void home_config_paths(char **global
, char **xdg
, char *file
);
814 extern char *expand_user_path(const char *path
);
815 const char *enter_repo(const char *path
, int strict
);
816 static inline int is_absolute_path(const char *path
)
818 return is_dir_sep(path
[0]) || has_dos_drive_prefix(path
);
820 int is_directory(const char *);
821 const char *real_path(const char *path
);
822 const char *real_path_if_valid(const char *path
);
823 const char *absolute_path(const char *path
);
824 const char *remove_leading_path(const char *in
, const char *prefix
);
825 const char *relative_path(const char *in
, const char *prefix
, struct strbuf
*sb
);
826 int normalize_path_copy_len(char *dst
, const char *src
, int *prefix_len
);
827 int normalize_path_copy(char *dst
, const char *src
);
828 int longest_ancestor_length(const char *path
, struct string_list
*prefixes
);
829 char *strip_path_suffix(const char *path
, const char *suffix
);
830 int daemon_avoid_alias(const char *path
);
832 /* object replacement */
833 #define LOOKUP_REPLACE_OBJECT 1
834 extern void *read_sha1_file_extended(const unsigned char *sha1
, enum object_type
*type
, unsigned long *size
, unsigned flag
);
835 static inline void *read_sha1_file(const unsigned char *sha1
, enum object_type
*type
, unsigned long *size
)
837 return read_sha1_file_extended(sha1
, type
, size
, LOOKUP_REPLACE_OBJECT
);
841 * This internal function is only declared here for the benefit of
842 * lookup_replace_object(). Please do not call it directly.
844 extern const unsigned char *do_lookup_replace_object(const unsigned char *sha1
);
847 * If object sha1 should be replaced, return the replacement object's
848 * name (replaced recursively, if necessary). The return value is
849 * either sha1 or a pointer to a permanently-allocated value. When
850 * object replacement is suppressed, always return sha1.
852 static inline const unsigned char *lookup_replace_object(const unsigned char *sha1
)
854 if (!check_replace_refs
)
856 return do_lookup_replace_object(sha1
);
859 static inline const unsigned char *lookup_replace_object_extended(const unsigned char *sha1
, unsigned flag
)
861 if (!(flag
& LOOKUP_REPLACE_OBJECT
))
863 return lookup_replace_object(sha1
);
866 /* Read and unpack a sha1 file into memory, write memory to a sha1 file */
867 extern int sha1_object_info(const unsigned char *, unsigned long *);
868 extern int hash_sha1_file(const void *buf
, unsigned long len
, const char *type
, unsigned char *sha1
);
869 extern int write_sha1_file(const void *buf
, unsigned long len
, const char *type
, unsigned char *return_sha1
);
870 extern int pretend_sha1_file(void *, unsigned long, enum object_type
, unsigned char *);
871 extern int force_object_loose(const unsigned char *sha1
, time_t mtime
);
872 extern int git_open_noatime(const char *name
);
873 extern void *map_sha1_file(const unsigned char *sha1
, unsigned long *size
);
874 extern int unpack_sha1_header(git_zstream
*stream
, unsigned char *map
, unsigned long mapsize
, void *buffer
, unsigned long bufsiz
);
875 extern int parse_sha1_header(const char *hdr
, unsigned long *sizep
);
877 /* global flag to enable extra checks when accessing packed objects */
878 extern int do_check_packed_object_crc
;
880 extern int check_sha1_signature(const unsigned char *sha1
, void *buf
, unsigned long size
, const char *type
);
882 extern int move_temp_to_file(const char *tmpfile
, const char *filename
);
884 extern int has_sha1_pack(const unsigned char *sha1
);
887 * Return true iff we have an object named sha1, whether local or in
888 * an alternate object database, and whether packed or loose. This
889 * function does not respect replace references.
891 extern int has_sha1_file(const unsigned char *sha1
);
894 * Return true iff an alternate object database has a loose object
895 * with the specified name. This function does not respect replace
898 extern int has_loose_object_nonlocal(const unsigned char *sha1
);
900 extern int has_pack_index(const unsigned char *sha1
);
902 extern void assert_sha1_type(const unsigned char *sha1
, enum object_type expect
);
904 extern const signed char hexval_table
[256];
905 static inline unsigned int hexval(unsigned char c
)
907 return hexval_table
[c
];
910 /* Convert to/from hex/sha1 representation */
911 #define MINIMUM_ABBREV minimum_abbrev
912 #define DEFAULT_ABBREV default_abbrev
914 struct object_context
{
915 unsigned char tree
[20];
920 #define GET_SHA1_QUIETLY 01
921 #define GET_SHA1_COMMIT 02
922 #define GET_SHA1_COMMITTISH 04
923 #define GET_SHA1_TREE 010
924 #define GET_SHA1_TREEISH 020
925 #define GET_SHA1_BLOB 040
926 #define GET_SHA1_ONLY_TO_DIE 04000
928 extern int get_sha1(const char *str
, unsigned char *sha1
);
929 extern int get_sha1_commit(const char *str
, unsigned char *sha1
);
930 extern int get_sha1_committish(const char *str
, unsigned char *sha1
);
931 extern int get_sha1_tree(const char *str
, unsigned char *sha1
);
932 extern int get_sha1_treeish(const char *str
, unsigned char *sha1
);
933 extern int get_sha1_blob(const char *str
, unsigned char *sha1
);
934 extern void maybe_die_on_misspelt_object_name(const char *name
, const char *prefix
);
935 extern int get_sha1_with_context(const char *str
, unsigned flags
, unsigned char *sha1
, struct object_context
*orc
);
937 typedef int each_abbrev_fn(const unsigned char *sha1
, void *);
938 extern int for_each_abbrev(const char *prefix
, each_abbrev_fn
, void *);
941 * Try to read a SHA1 in hexadecimal format from the 40 characters
942 * starting at hex. Write the 20-byte result to sha1 in binary form.
943 * Return 0 on success. Reading stops if a NUL is encountered in the
944 * input, so it is safe to pass this function an arbitrary
945 * null-terminated string.
947 extern int get_sha1_hex(const char *hex
, unsigned char *sha1
);
949 extern char *sha1_to_hex(const unsigned char *sha1
); /* static buffer result! */
950 extern int read_ref_full(const char *refname
, unsigned char *sha1
,
951 int flags
, int *ref_flag
);
952 extern int read_ref(const char *refname
, unsigned char *sha1
);
955 * Resolve a reference, recursively following symbolic refererences.
957 * Store the referred-to object's name in sha1 and return the name of
958 * the non-symbolic reference that ultimately pointed at it. The
959 * return value, if not NULL, is a pointer into either a static buffer
962 * If the reference cannot be resolved to an object, the behavior
963 * depends on the RESOLVE_REF_READING flag:
965 * - If RESOLVE_REF_READING is set, return NULL.
967 * - If RESOLVE_REF_READING is not set, clear sha1 and return the name of
968 * the last reference name in the chain, which will either be a non-symbolic
969 * reference or an undefined reference. If this is a prelude to
970 * "writing" to the ref, the return value is the name of the ref
971 * that will actually be created or changed.
973 * If ref_flag is non-NULL, set the value that it points to the
974 * combination of REF_ISPACKED (if the reference was found among the
975 * packed references) and REF_ISSYMREF (if the initial reference was a
976 * symbolic reference).
978 * If ref is not a properly-formatted, normalized reference, return
979 * NULL. If more than MAXDEPTH recursive symbolic lookups are needed,
980 * give up and return NULL.
982 * errno is set to something meaningful on error.
984 #define RESOLVE_REF_READING 0x01
985 #define RESOLVE_REF_ALLOW_BAD_NAME 0x02
986 extern const char *resolve_ref_unsafe(const char *ref
, unsigned char *sha1
, int flags
, int *ref_flag
);
987 extern char *resolve_refdup(const char *ref
, unsigned char *sha1
, int flags
, int *ref_flag
);
989 extern int dwim_ref(const char *str
, int len
, unsigned char *sha1
, char **ref
);
990 extern int dwim_log(const char *str
, int len
, unsigned char *sha1
, char **ref
);
991 extern int interpret_branch_name(const char *str
, int len
, struct strbuf
*);
992 extern int get_sha1_mb(const char *str
, unsigned char *sha1
);
995 * Return true iff abbrev_name is a possible abbreviation for
996 * full_name according to the rules defined by ref_rev_parse_rules in
999 extern int refname_match(const char *abbrev_name
, const char *full_name
);
1001 extern int create_symref(const char *ref
, const char *refs_heads_master
, const char *logmsg
);
1002 extern int validate_headref(const char *ref
);
1004 extern int base_name_compare(const char *name1
, int len1
, int mode1
, const char *name2
, int len2
, int mode2
);
1005 extern int df_name_compare(const char *name1
, int len1
, int mode1
, const char *name2
, int len2
, int mode2
);
1006 extern int cache_name_compare(const char *name1
, int len1
, const char *name2
, int len2
);
1007 extern int cache_name_stage_compare(const char *name1
, int len1
, int stage1
, const char *name2
, int len2
, int stage2
);
1009 extern void *read_object_with_reference(const unsigned char *sha1
,
1010 const char *required_type
,
1011 unsigned long *size
,
1012 unsigned char *sha1_ret
);
1014 extern struct object
*peel_to_type(const char *name
, int namelen
,
1015 struct object
*o
, enum object_type
);
1027 const char *show_date(unsigned long time
, int timezone
, enum date_mode mode
);
1028 void show_date_relative(unsigned long time
, int tz
, const struct timeval
*now
,
1029 struct strbuf
*timebuf
);
1030 int parse_date(const char *date
, char *buf
, int bufsize
);
1031 int parse_date_basic(const char *date
, unsigned long *timestamp
, int *offset
);
1032 int parse_expiry_date(const char *date
, unsigned long *timestamp
);
1033 void datestamp(char *buf
, int bufsize
);
1034 #define approxidate(s) approxidate_careful((s), NULL)
1035 unsigned long approxidate_careful(const char *, int *);
1036 unsigned long approxidate_relative(const char *date
, const struct timeval
*now
);
1037 enum date_mode
parse_date_format(const char *format
);
1038 int date_overflows(unsigned long date
);
1040 #define IDENT_STRICT 1
1041 #define IDENT_NO_DATE 2
1042 #define IDENT_NO_NAME 4
1043 extern const char *git_author_info(int);
1044 extern const char *git_committer_info(int);
1045 extern const char *fmt_ident(const char *name
, const char *email
, const char *date_str
, int);
1046 extern const char *fmt_name(const char *name
, const char *email
);
1047 extern const char *ident_default_email(void);
1048 extern const char *git_editor(void);
1049 extern const char *git_pager(int stdout_is_tty
);
1050 extern int git_ident_config(const char *, const char *, void *);
1052 struct ident_split
{
1053 const char *name_begin
;
1054 const char *name_end
;
1055 const char *mail_begin
;
1056 const char *mail_end
;
1057 const char *date_begin
;
1058 const char *date_end
;
1059 const char *tz_begin
;
1063 * Signals an success with 0, but time part of the result may be NULL
1064 * if the input lacks timestamp and zone
1066 extern int split_ident_line(struct ident_split
*, const char *, int);
1069 * Like show_date, but pull the timestamp and tz parameters from
1070 * the ident_split. It will also sanity-check the values and produce
1071 * a well-known sentinel date if they appear bogus.
1073 const char *show_ident_date(const struct ident_split
*id
, enum date_mode mode
);
1076 * Compare split idents for equality or strict ordering. Note that we
1077 * compare only the ident part of the line, ignoring any timestamp.
1079 * Because there are two fields, we must choose one as the primary key; we
1080 * currently arbitrarily pick the email.
1082 extern int ident_cmp(const struct ident_split
*, const struct ident_split
*);
1085 const char *base_dir
;
1093 #define TEMPORARY_FILENAME_LENGTH 25
1094 extern int checkout_entry(struct cache_entry
*ce
, const struct checkout
*state
, char *topath
);
1097 char path
[PATH_MAX
+ 1];
1101 int prefix_len_stat_func
;
1104 extern int has_symlink_leading_path(const char *name
, int len
);
1105 extern int threaded_has_symlink_leading_path(struct cache_def
*, const char *, int);
1106 extern int check_leading_path(const char *name
, int len
);
1107 extern int has_dirs_only_path(const char *name
, int len
, int prefix_len
);
1108 extern void schedule_dir_for_removal(const char *name
, int len
);
1109 extern void remove_scheduled_dirs(void);
1111 extern struct alternate_object_database
{
1112 struct alternate_object_database
*next
;
1114 char base
[FLEX_ARRAY
]; /* more */
1116 extern void prepare_alt_odb(void);
1117 extern void read_info_alternates(const char * relative_base
, int depth
);
1118 extern void add_to_alternates_file(const char *reference
);
1119 typedef int alt_odb_fn(struct alternate_object_database
*, void *);
1120 extern void foreach_alt_odb(alt_odb_fn
, void*);
1122 struct pack_window
{
1123 struct pack_window
*next
;
1124 unsigned char *base
;
1127 unsigned int last_used
;
1128 unsigned int inuse_cnt
;
1131 extern struct packed_git
{
1132 struct packed_git
*next
;
1133 struct pack_window
*windows
;
1135 const void *index_data
;
1137 uint32_t num_objects
;
1138 uint32_t num_bad_objects
;
1139 unsigned char *bad_object_sha1
;
1143 unsigned pack_local
:1,
1146 unsigned char sha1
[20];
1147 /* something like ".git/objects/pack/xxxxx.pack" */
1148 char pack_name
[FLEX_ARRAY
]; /* more */
1153 unsigned char sha1
[20];
1154 struct packed_git
*p
;
1157 extern struct packed_git
*parse_pack_index(unsigned char *sha1
, const char *idx_path
);
1159 /* A hook for count-objects to report invalid files in pack directory */
1160 extern void (*report_garbage
)(const char *desc
, const char *path
);
1162 extern void prepare_packed_git(void);
1163 extern void reprepare_packed_git(void);
1164 extern void install_packed_git(struct packed_git
*pack
);
1166 extern struct packed_git
*find_sha1_pack(const unsigned char *sha1
,
1167 struct packed_git
*packs
);
1169 extern void pack_report(void);
1172 * mmap the index file for the specified packfile (if it is not
1173 * already mmapped). Return 0 on success.
1175 extern int open_pack_index(struct packed_git
*);
1178 * munmap the index file for the specified packfile (if it is
1179 * currently mmapped).
1181 extern void close_pack_index(struct packed_git
*);
1183 extern unsigned char *use_pack(struct packed_git
*, struct pack_window
**, off_t
, unsigned long *);
1184 extern void close_pack_windows(struct packed_git
*);
1185 extern void unuse_pack(struct pack_window
**);
1186 extern void free_pack_by_name(const char *);
1187 extern void clear_delta_base_cache(void);
1188 extern struct packed_git
*add_packed_git(const char *, int, int);
1191 * Return the SHA-1 of the nth object within the specified packfile.
1192 * Open the index if it is not already open. The return value points
1193 * at the SHA-1 within the mmapped index. Return NULL if there is an
1196 extern const unsigned char *nth_packed_object_sha1(struct packed_git
*, uint32_t n
);
1199 * Return the offset of the nth object within the specified packfile.
1200 * The index must already be opened.
1202 extern off_t
nth_packed_object_offset(const struct packed_git
*, uint32_t n
);
1205 * If the object named sha1 is present in the specified packfile,
1206 * return its offset within the packfile; otherwise, return 0.
1208 extern off_t
find_pack_entry_one(const unsigned char *sha1
, struct packed_git
*);
1210 extern int is_pack_valid(struct packed_git
*);
1211 extern void *unpack_entry(struct packed_git
*, off_t
, enum object_type
*, unsigned long *);
1212 extern unsigned long unpack_object_header_buffer(const unsigned char *buf
, unsigned long len
, enum object_type
*type
, unsigned long *sizep
);
1213 extern unsigned long get_size_from_delta(struct packed_git
*, struct pack_window
**, off_t
);
1214 extern int unpack_object_header(struct packed_git
*, struct pack_window
**, off_t
*, unsigned long *);
1216 struct object_info
{
1218 enum object_type
*typep
;
1219 unsigned long *sizep
;
1220 unsigned long *disk_sizep
;
1221 unsigned char *delta_base_sha1
;
1233 * ... Nothing to expose in this case
1236 * ... Nothing to expose in this case
1240 struct packed_git
*pack
;
1242 unsigned int is_delta
;
1246 extern int sha1_object_info_extended(const unsigned char *, struct object_info
*, unsigned flags
);
1248 /* Dumb servers support */
1249 extern int update_server_info(int);
1251 /* git_config_parse_key() returns these negated: */
1252 #define CONFIG_INVALID_KEY 1
1253 #define CONFIG_NO_SECTION_OR_NAME 2
1254 /* git_config_set(), git_config_set_multivar() return the above or these: */
1255 #define CONFIG_NO_LOCK -1
1256 #define CONFIG_INVALID_FILE 3
1257 #define CONFIG_NO_WRITE 4
1258 #define CONFIG_NOTHING_SET 5
1259 #define CONFIG_INVALID_PATTERN 6
1260 #define CONFIG_GENERIC_ERROR 7
1262 struct git_config_source
{
1263 unsigned int use_stdin
:1;
1268 typedef int (*config_fn_t
)(const char *, const char *, void *);
1269 extern int git_default_config(const char *, const char *, void *);
1270 extern int git_config_from_file(config_fn_t fn
, const char *, void *);
1271 extern int git_config_from_buf(config_fn_t fn
, const char *name
,
1272 const char *buf
, size_t len
, void *data
);
1273 extern void git_config_push_parameter(const char *text
);
1274 extern int git_config_from_parameters(config_fn_t fn
, void *data
);
1275 extern int git_config(config_fn_t fn
, void *);
1276 extern int git_config_with_options(config_fn_t fn
, void *,
1277 struct git_config_source
*config_source
,
1278 int respect_includes
);
1279 extern int git_config_early(config_fn_t fn
, void *, const char *repo_config
);
1280 extern int git_parse_ulong(const char *, unsigned long *);
1281 extern int git_config_int(const char *, const char *);
1282 extern int64_t git_config_int64(const char *, const char *);
1283 extern unsigned long git_config_ulong(const char *, const char *);
1284 extern int git_config_bool_or_int(const char *, const char *, int *);
1285 extern int git_config_bool(const char *, const char *);
1286 extern int git_config_maybe_bool(const char *, const char *);
1287 extern int git_config_string(const char **, const char *, const char *);
1288 extern int git_config_pathname(const char **, const char *, const char *);
1289 extern int git_config_set_in_file(const char *, const char *, const char *);
1290 extern int git_config_set(const char *, const char *);
1291 extern int git_config_parse_key(const char *, char **, int *);
1292 extern int git_config_set_multivar(const char *, const char *, const char *, int);
1293 extern int git_config_set_multivar_in_file(const char *, const char *, const char *, const char *, int);
1294 extern int git_config_rename_section(const char *, const char *);
1295 extern int git_config_rename_section_in_file(const char *, const char *, const char *);
1296 extern const char *git_etc_gitconfig(void);
1297 extern int check_repository_format_version(const char *var
, const char *value
, void *cb
);
1298 extern int git_env_bool(const char *, int);
1299 extern int git_config_system(void);
1300 extern int config_error_nonbool(const char *);
1301 #if defined(__GNUC__)
1302 #define config_error_nonbool(s) (config_error_nonbool(s), const_error())
1304 extern const char *get_log_output_encoding(void);
1305 extern const char *get_commit_output_encoding(void);
1307 extern int git_config_parse_parameter(const char *, config_fn_t fn
, void *data
);
1309 struct config_include_data
{
1314 #define CONFIG_INCLUDE_INIT { 0 }
1315 extern int git_config_include(const char *name
, const char *value
, void *data
);
1318 * Match and parse a config key of the form:
1320 * section.(subsection.)?key
1322 * (i.e., what gets handed to a config_fn_t). The caller provides the section;
1323 * we return -1 if it does not match, 0 otherwise. The subsection and key
1324 * out-parameters are filled by the function (and subsection is NULL if it is
1327 extern int parse_config_key(const char *var
,
1328 const char *section
,
1329 const char **subsection
, int *subsection_len
,
1332 extern int committer_ident_sufficiently_given(void);
1333 extern int author_ident_sufficiently_given(void);
1335 extern const char *git_commit_encoding
;
1336 extern const char *git_log_output_encoding
;
1337 extern const char *git_mailmap_file
;
1338 extern const char *git_mailmap_blob
;
1340 /* IO helper functions */
1341 extern void maybe_flush_or_die(FILE *, const char *);
1342 extern int copy_fd(int ifd
, int ofd
);
1343 extern int copy_file(const char *dst
, const char *src
, int mode
);
1344 extern int copy_file_with_time(const char *dst
, const char *src
, int mode
);
1345 extern void write_or_die(int fd
, const void *buf
, size_t count
);
1346 extern int write_or_whine(int fd
, const void *buf
, size_t count
, const char *msg
);
1347 extern int write_or_whine_pipe(int fd
, const void *buf
, size_t count
, const char *msg
);
1348 extern void fsync_or_die(int fd
, const char *);
1350 extern ssize_t
read_in_full(int fd
, void *buf
, size_t count
);
1351 extern ssize_t
write_in_full(int fd
, const void *buf
, size_t count
);
1352 extern ssize_t
pread_in_full(int fd
, void *buf
, size_t count
, off_t offset
);
1354 static inline ssize_t
write_str_in_full(int fd
, const char *str
)
1356 return write_in_full(fd
, str
, strlen(str
));
1360 extern void setup_pager(void);
1361 extern const char *pager_program
;
1362 extern int pager_in_use(void);
1363 extern int pager_use_color
;
1364 extern int term_columns(void);
1365 extern int decimal_width(int);
1366 extern int check_pager_config(const char *cmd
);
1368 extern const char *editor_program
;
1369 extern const char *askpass_program
;
1370 extern const char *excludes_file
;
1373 int decode_85(char *dst
, const char *line
, int linelen
);
1374 void encode_85(char *buf
, const unsigned char *data
, int bytes
);
1377 extern void *alloc_blob_node(void);
1378 extern void *alloc_tree_node(void);
1379 extern void *alloc_commit_node(void);
1380 extern void *alloc_tag_node(void);
1381 extern void *alloc_object_node(void);
1382 extern void alloc_report(void);
1385 __attribute__((format (printf
, 1, 2)))
1386 extern void trace_printf(const char *format
, ...);
1387 __attribute__((format (printf
, 2, 3)))
1388 extern void trace_argv_printf(const char **argv
, const char *format
, ...);
1389 extern void trace_repo_setup(const char *prefix
);
1390 extern int trace_want(const char *key
);
1391 __attribute__((format (printf
, 2, 3)))
1392 extern void trace_printf_key(const char *key
, const char *fmt
, ...);
1393 extern void trace_strbuf(const char *key
, const struct strbuf
*buf
);
1395 void packet_trace_identity(const char *prog
);
1399 * return 0 if success, 1 - if addition of a file failed and
1400 * ADD_FILES_IGNORE_ERRORS was specified in flags
1402 int add_files_to_cache(const char *prefix
, const struct pathspec
*pathspec
, int flags
);
1405 extern int diff_auto_refresh_index
;
1408 void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
1409 void shift_tree_by(const unsigned char *, const unsigned char *, unsigned char *, const char *);
1413 * used by both diff and apply
1414 * last two digits are tab width
1416 #define WS_BLANK_AT_EOL 0100
1417 #define WS_SPACE_BEFORE_TAB 0200
1418 #define WS_INDENT_WITH_NON_TAB 0400
1419 #define WS_CR_AT_EOL 01000
1420 #define WS_BLANK_AT_EOF 02000
1421 #define WS_TAB_IN_INDENT 04000
1422 #define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF)
1423 #define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|8)
1424 #define WS_TAB_WIDTH_MASK 077
1425 extern unsigned whitespace_rule_cfg
;
1426 extern unsigned whitespace_rule(const char *);
1427 extern unsigned parse_whitespace_rule(const char *);
1428 extern unsigned ws_check(const char *line
, int len
, unsigned ws_rule
);
1429 extern void ws_check_emit(const char *line
, int len
, unsigned ws_rule
, FILE *stream
, const char *set
, const char *reset
, const char *ws
);
1430 extern char *whitespace_error_string(unsigned ws
);
1431 extern void ws_fix_copy(struct strbuf
*, const char *, int, unsigned, int *);
1432 extern int ws_blank_line(const char *line
, int len
, unsigned ws_rule
);
1433 #define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK)
1436 int report_path_error(const char *ps_matched
, const struct pathspec
*pathspec
, const char *prefix
);
1437 void overlay_tree_on_cache(const char *tree_name
, const char *prefix
);
1439 char *alias_lookup(const char *alias
);
1440 int split_cmdline(char *cmdline
, const char ***argv
);
1441 /* Takes a negative value returned by split_cmdline */
1442 const char *split_cmdline_strerror(int cmdline_errno
);
1445 struct startup_info
{
1446 int have_repository
;
1449 extern struct startup_info
*startup_info
;
1453 int try_merge_command(const char *strategy
, size_t xopts_nr
,
1454 const char **xopts
, struct commit_list
*common
,
1455 const char *head_arg
, struct commit_list
*remotes
);
1456 int checkout_fast_forward(const unsigned char *from
,
1457 const unsigned char *to
,
1458 int overwrite_ignore
);
1461 int sane_execvp(const char *file
, char *const argv
[]);
1464 * A struct to encapsulate the concept of whether a file has changed
1465 * since we last checked it. This uses criteria similar to those used
1468 struct stat_validity
{
1469 struct stat_data
*sd
;
1472 void stat_validity_clear(struct stat_validity
*sv
);
1475 * Returns 1 if the path is a regular file (or a symlink to a regular
1476 * file) and matches the saved stat_validity, 0 otherwise. A missing
1477 * or inaccessible file is considered a match if the struct was just
1478 * initialized, or if the previous update found an inaccessible file.
1480 int stat_validity_check(struct stat_validity
*sv
, const char *path
);
1483 * Update the stat_validity from a file opened at descriptor fd. If
1484 * the file is missing, inaccessible, or not a regular file, then
1485 * future calls to stat_validity_check will match iff one of those
1486 * conditions continues to be true.
1488 void stat_validity_update(struct stat_validity
*sv
, int fd
);
1490 int versioncmp(const char *s1
, const char *s2
);
1492 #endif /* CACHE_H */