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 * Intensive research over the course of many years has shown that
79 * port 9418 is totally unused by anything else. Or
81 * Your search - "port 9418" - did not match any documents.
83 * as www.google.com puts it.
85 * This port has been properly assigned for git use by IANA:
86 * git (Assigned-9418) [I06-050728-0001].
88 * git 9418/tcp git pack transfer service
89 * git 9418/udp git pack transfer service
91 * with Linus Torvalds <torvalds@osdl.org> as the point of
92 * contact. September 2005.
94 * See http://www.iana.org/assignments/port-numbers
96 #define DEFAULT_GIT_PORT 9418
99 * Basic data structures for the directory cache
102 #define CACHE_SIGNATURE 0x44495243 /* "DIRC" */
103 struct cache_header
{
104 uint32_t hdr_signature
;
105 uint32_t hdr_version
;
106 uint32_t hdr_entries
;
109 #define INDEX_FORMAT_LB 2
110 #define INDEX_FORMAT_UB 4
113 * The "cache_time" is just the low 32 bits of the
114 * time. It doesn't matter if it overflows - we only
115 * check it for equality in the 32 bits we save.
123 struct cache_time sd_ctime
;
124 struct cache_time sd_mtime
;
129 unsigned int sd_size
;
133 struct hashmap_entry ent
;
134 struct stat_data ce_stat_data
;
135 unsigned int ce_mode
;
136 unsigned int ce_flags
;
137 unsigned int ce_namelen
;
138 unsigned int index
; /* for link extension */
139 unsigned char sha1
[20];
140 char name
[FLEX_ARRAY
]; /* more */
143 #define CE_STAGEMASK (0x3000)
144 #define CE_EXTENDED (0x4000)
145 #define CE_VALID (0x8000)
146 #define CE_STAGESHIFT 12
149 * Range 0xFFFF0FFF in ce_flags is divided into
150 * two parts: in-memory flags and on-disk ones.
151 * Flags in CE_EXTENDED_FLAGS will get saved on-disk
152 * if you want to save a new flag, add it in
155 * In-memory only flags
157 #define CE_UPDATE (1 << 16)
158 #define CE_REMOVE (1 << 17)
159 #define CE_UPTODATE (1 << 18)
160 #define CE_ADDED (1 << 19)
162 #define CE_HASHED (1 << 20)
163 #define CE_WT_REMOVE (1 << 22) /* remove in work directory */
164 #define CE_CONFLICTED (1 << 23)
166 #define CE_UNPACKED (1 << 24)
167 #define CE_NEW_SKIP_WORKTREE (1 << 25)
169 /* used to temporarily mark paths matched by pathspecs */
170 #define CE_MATCHED (1 << 26)
172 #define CE_UPDATE_IN_BASE (1 << 27)
173 #define CE_STRIP_NAME (1 << 28)
176 * Extended on-disk flags
178 #define CE_INTENT_TO_ADD (1 << 29)
179 #define CE_SKIP_WORKTREE (1 << 30)
180 /* CE_EXTENDED2 is for future extension */
181 #define CE_EXTENDED2 (1 << 31)
183 #define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD | CE_SKIP_WORKTREE)
186 * Safeguard to avoid saving wrong flags:
187 * - CE_EXTENDED2 won't get saved until its semantic is known
188 * - Bits in 0x0000FFFF have been saved in ce_flags already
189 * - Bits in 0x003F0000 are currently in-memory flags
191 #if CE_EXTENDED_FLAGS & 0x803FFFFF
192 #error "CE_EXTENDED_FLAGS out of range"
198 * Copy the sha1 and stat state of a cache entry from one to
199 * another. But we never change the name, or the hash state!
201 static inline void copy_cache_entry(struct cache_entry
*dst
,
202 const struct cache_entry
*src
)
204 unsigned int state
= dst
->ce_flags
& CE_HASHED
;
206 /* Don't copy hash chain and name */
207 memcpy(&dst
->ce_stat_data
, &src
->ce_stat_data
,
208 offsetof(struct cache_entry
, name
) -
209 offsetof(struct cache_entry
, ce_stat_data
));
211 /* Restore the hash state */
212 dst
->ce_flags
= (dst
->ce_flags
& ~CE_HASHED
) | state
;
215 static inline unsigned create_ce_flags(unsigned stage
)
217 return (stage
<< CE_STAGESHIFT
);
220 #define ce_namelen(ce) ((ce)->ce_namelen)
221 #define ce_size(ce) cache_entry_size(ce_namelen(ce))
222 #define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT)
223 #define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE)
224 #define ce_skip_worktree(ce) ((ce)->ce_flags & CE_SKIP_WORKTREE)
225 #define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE)
227 #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644)
228 static inline unsigned int create_ce_mode(unsigned int mode
)
232 if (S_ISDIR(mode
) || S_ISGITLINK(mode
))
234 return S_IFREG
| ce_permissions(mode
);
236 static inline unsigned int ce_mode_from_stat(const struct cache_entry
*ce
,
239 extern int trust_executable_bit
, has_symlinks
;
240 if (!has_symlinks
&& S_ISREG(mode
) &&
241 ce
&& S_ISLNK(ce
->ce_mode
))
243 if (!trust_executable_bit
&& S_ISREG(mode
)) {
244 if (ce
&& S_ISREG(ce
->ce_mode
))
246 return create_ce_mode(0666);
248 return create_ce_mode(mode
);
250 static inline int ce_to_dtype(const struct cache_entry
*ce
)
252 unsigned ce_mode
= ntohl(ce
->ce_mode
);
253 if (S_ISREG(ce_mode
))
255 else if (S_ISDIR(ce_mode
) || S_ISGITLINK(ce_mode
))
257 else if (S_ISLNK(ce_mode
))
262 static inline unsigned int canon_mode(unsigned int mode
)
265 return S_IFREG
| ce_permissions(mode
);
273 #define cache_entry_size(len) (offsetof(struct cache_entry,name) + (len) + 1)
275 #define SOMETHING_CHANGED (1 << 0) /* unclassified changes go here */
276 #define CE_ENTRY_CHANGED (1 << 1)
277 #define CE_ENTRY_REMOVED (1 << 2)
278 #define CE_ENTRY_ADDED (1 << 3)
279 #define RESOLVE_UNDO_CHANGED (1 << 4)
280 #define CACHE_TREE_CHANGED (1 << 5)
281 #define SPLIT_INDEX_ORDERED (1 << 6)
285 struct cache_entry
**cache
;
286 unsigned int version
;
287 unsigned int cache_nr
, cache_alloc
, cache_changed
;
288 struct string_list
*resolve_undo
;
289 struct cache_tree
*cache_tree
;
290 struct split_index
*split_index
;
291 struct cache_time timestamp
;
292 unsigned name_hash_initialized
: 1,
294 struct hashmap name_hash
;
295 struct hashmap dir_hash
;
296 unsigned char sha1
[20];
299 extern struct index_state the_index
;
302 extern void add_name_hash(struct index_state
*istate
, struct cache_entry
*ce
);
303 extern void remove_name_hash(struct index_state
*istate
, struct cache_entry
*ce
);
304 extern void free_name_hash(struct index_state
*istate
);
307 #ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
308 #define active_cache (the_index.cache)
309 #define active_nr (the_index.cache_nr)
310 #define active_alloc (the_index.cache_alloc)
311 #define active_cache_changed (the_index.cache_changed)
312 #define active_cache_tree (the_index.cache_tree)
314 #define read_cache() read_index(&the_index)
315 #define read_cache_from(path) read_index_from(&the_index, (path))
316 #define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec))
317 #define is_cache_unborn() is_index_unborn(&the_index)
318 #define read_cache_unmerged() read_index_unmerged(&the_index)
319 #define discard_cache() discard_index(&the_index)
320 #define unmerged_cache() unmerged_index(&the_index)
321 #define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen))
322 #define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option))
323 #define rename_cache_entry_at(pos, new_name) rename_index_entry_at(&the_index, (pos), (new_name))
324 #define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos))
325 #define remove_file_from_cache(path) remove_file_from_index(&the_index, (path))
326 #define add_to_cache(path, st, flags) add_to_index(&the_index, (path), (st), (flags))
327 #define add_file_to_cache(path, flags) add_file_to_index(&the_index, (path), (flags))
328 #define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL)
329 #define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options))
330 #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
331 #define cache_dir_exists(name, namelen) index_dir_exists(&the_index, (name), (namelen))
332 #define cache_file_exists(name, namelen, igncase) index_file_exists(&the_index, (name), (namelen), (igncase))
333 #define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen))
334 #define resolve_undo_clear() resolve_undo_clear_index(&the_index)
335 #define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at)
336 #define unmerge_cache(pathspec) unmerge_index(&the_index, pathspec)
337 #define read_blob_data_from_cache(path, sz) read_blob_data_from_index(&the_index, (path), (sz))
347 /* 5 for future expansion */
354 static inline enum object_type
object_type(unsigned int mode
)
356 return S_ISDIR(mode
) ? OBJ_TREE
:
357 S_ISGITLINK(mode
) ? OBJ_COMMIT
:
361 /* Double-check local_repo_env below if you add to this list. */
362 #define GIT_DIR_ENVIRONMENT "GIT_DIR"
363 #define GIT_NAMESPACE_ENVIRONMENT "GIT_NAMESPACE"
364 #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
365 #define GIT_PREFIX_ENVIRONMENT "GIT_PREFIX"
366 #define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
367 #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
368 #define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
369 #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
370 #define GIT_SHALLOW_FILE_ENVIRONMENT "GIT_SHALLOW_FILE"
371 #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR"
372 #define CONFIG_ENVIRONMENT "GIT_CONFIG"
373 #define CONFIG_DATA_ENVIRONMENT "GIT_CONFIG_PARAMETERS"
374 #define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH"
375 #define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES"
376 #define NO_REPLACE_OBJECTS_ENVIRONMENT "GIT_NO_REPLACE_OBJECTS"
377 #define GITATTRIBUTES_FILE ".gitattributes"
378 #define INFOATTRIBUTES_FILE "info/attributes"
379 #define ATTRIBUTE_MACRO_PREFIX "[attr]"
380 #define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF"
381 #define GIT_NOTES_DEFAULT_REF "refs/notes/commits"
382 #define GIT_NOTES_DISPLAY_REF_ENVIRONMENT "GIT_NOTES_DISPLAY_REF"
383 #define GIT_NOTES_REWRITE_REF_ENVIRONMENT "GIT_NOTES_REWRITE_REF"
384 #define GIT_NOTES_REWRITE_MODE_ENVIRONMENT "GIT_NOTES_REWRITE_MODE"
385 #define GIT_LITERAL_PATHSPECS_ENVIRONMENT "GIT_LITERAL_PATHSPECS"
386 #define GIT_GLOB_PATHSPECS_ENVIRONMENT "GIT_GLOB_PATHSPECS"
387 #define GIT_NOGLOB_PATHSPECS_ENVIRONMENT "GIT_NOGLOB_PATHSPECS"
388 #define GIT_ICASE_PATHSPECS_ENVIRONMENT "GIT_ICASE_PATHSPECS"
391 * This environment variable is expected to contain a boolean indicating
392 * whether we should or should not treat:
394 * GIT_DIR=foo.git git ...
396 * as if GIT_WORK_TREE=. was given. It's not expected that users will make use
397 * of this, but we use it internally to communicate to sub-processes that we
398 * are in a bare repo. If not set, defaults to true.
400 #define GIT_IMPLICIT_WORK_TREE_ENVIRONMENT "GIT_IMPLICIT_WORK_TREE"
403 * Repository-local GIT_* environment variables; these will be cleared
404 * when git spawns a sub-process that runs inside another repository.
405 * The array is NULL-terminated, which makes it easy to pass in the "env"
406 * parameter of a run-command invocation, or to do a simple walk.
408 extern const char * const local_repo_env
[];
410 extern int is_bare_repository_cfg
;
411 extern int is_bare_repository(void);
412 extern int is_inside_git_dir(void);
413 extern char *git_work_tree_cfg
;
414 extern int is_inside_work_tree(void);
415 extern const char *get_git_dir(void);
416 extern int is_git_directory(const char *path
);
417 extern char *get_object_directory(void);
418 extern char *get_index_file(void);
419 extern char *get_graft_file(void);
420 extern int set_git_dir(const char *path
);
421 extern const char *get_git_namespace(void);
422 extern const char *strip_namespace(const char *namespaced_ref
);
423 extern const char *get_git_work_tree(void);
424 extern const char *read_gitfile(const char *path
);
425 extern const char *resolve_gitdir(const char *suspect
);
426 extern void set_git_work_tree(const char *tree
);
428 #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
430 extern const char **get_pathspec(const char *prefix
, const char **pathspec
);
431 extern void setup_work_tree(void);
432 extern const char *setup_git_directory_gently(int *);
433 extern const char *setup_git_directory(void);
434 extern char *prefix_path(const char *prefix
, int len
, const char *path
);
435 extern char *prefix_path_gently(const char *prefix
, int len
, int *remaining
, const char *path
);
436 extern const char *prefix_filename(const char *prefix
, int len
, const char *path
);
437 extern int check_filename(const char *prefix
, const char *name
);
438 extern void verify_filename(const char *prefix
,
440 int diagnose_misspelt_rev
);
441 extern void verify_non_filename(const char *prefix
, const char *name
);
442 extern int path_inside_repo(const char *prefix
, const char *path
);
444 #define INIT_DB_QUIET 0x0001
446 extern int set_git_dir_init(const char *git_dir
, const char *real_git_dir
, int);
447 extern int init_db(const char *template_dir
, unsigned int flags
);
449 extern void sanitize_stdfds(void);
450 extern int daemonize(void);
452 #define alloc_nr(x) (((x)+16)*3/2)
455 * Realloc the buffer pointed at by variable 'x' so that it can hold
456 * at least 'nr' entries; the number of entries currently allocated
457 * is 'alloc', using the standard growing factor alloc_nr() macro.
459 * DO NOT USE any expression with side-effect for 'x', 'nr', or 'alloc'.
461 #define ALLOC_GROW(x, nr, alloc) \
463 if ((nr) > alloc) { \
464 if (alloc_nr(alloc) < (nr)) \
467 alloc = alloc_nr(alloc); \
468 x = xrealloc((x), alloc * sizeof(*(x))); \
472 /* Initialize and use the cache information */
474 extern int read_index(struct index_state
*);
475 extern int read_index_preload(struct index_state
*, const struct pathspec
*pathspec
);
476 extern int do_read_index(struct index_state
*istate
, const char *path
,
477 int must_exist
); /* for testting only! */
478 extern int read_index_from(struct index_state
*, const char *path
);
479 extern int is_index_unborn(struct index_state
*);
480 extern int read_index_unmerged(struct index_state
*);
481 #define COMMIT_LOCK (1 << 0)
482 #define CLOSE_LOCK (1 << 1)
483 extern int write_locked_index(struct index_state
*, struct lock_file
*lock
, unsigned flags
);
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_dir_exists(struct index_state
*istate
, const char *name
, int namelen
);
488 extern struct cache_entry
*index_file_exists(struct index_state
*istate
, const char *name
, int namelen
, int igncase
);
489 extern int index_name_pos(const struct index_state
*, const char *name
, int namelen
);
490 #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
491 #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
492 #define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
493 #define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
494 #define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */
495 #define ADD_CACHE_KEEP_CACHE_TREE 32 /* Do not invalidate cache-tree */
496 extern int add_index_entry(struct index_state
*, struct cache_entry
*ce
, int option
);
497 extern void rename_index_entry_at(struct index_state
*, int pos
, const char *new_name
);
498 extern int remove_index_entry_at(struct index_state
*, int pos
);
499 extern void remove_marked_cache_entries(struct index_state
*istate
);
500 extern int remove_file_from_index(struct index_state
*, const char *path
);
501 #define ADD_CACHE_VERBOSE 1
502 #define ADD_CACHE_PRETEND 2
503 #define ADD_CACHE_IGNORE_ERRORS 4
504 #define ADD_CACHE_IGNORE_REMOVAL 8
505 #define ADD_CACHE_INTENT 16
506 extern int add_to_index(struct index_state
*, const char *path
, struct stat
*, int flags
);
507 extern int add_file_to_index(struct index_state
*, const char *path
, int flags
);
508 extern struct cache_entry
*make_cache_entry(unsigned int mode
, const unsigned char *sha1
, const char *path
, int stage
, unsigned int refresh_options
);
509 extern int ce_same_name(const struct cache_entry
*a
, const struct cache_entry
*b
);
510 extern void set_object_name_for_intent_to_add_entry(struct cache_entry
*ce
);
511 extern int index_name_is_other(const struct index_state
*, const char *, int);
512 extern void *read_blob_data_from_index(struct index_state
*, const char *, unsigned long *);
514 /* do stat comparison even if CE_VALID is true */
515 #define CE_MATCH_IGNORE_VALID 01
516 /* do not check the contents but report dirty on racily-clean entries */
517 #define CE_MATCH_RACY_IS_DIRTY 02
518 /* do stat comparison even if CE_SKIP_WORKTREE is true */
519 #define CE_MATCH_IGNORE_SKIP_WORKTREE 04
520 /* ignore non-existent files during stat update */
521 #define CE_MATCH_IGNORE_MISSING 0x08
522 /* enable stat refresh */
523 #define CE_MATCH_REFRESH 0x10
524 extern int ie_match_stat(const struct index_state
*, const struct cache_entry
*, struct stat
*, unsigned int);
525 extern int ie_modified(const struct index_state
*, const struct cache_entry
*, struct stat
*, unsigned int);
527 #define HASH_WRITE_OBJECT 1
528 #define HASH_FORMAT_CHECK 2
529 extern int index_fd(unsigned char *sha1
, int fd
, struct stat
*st
, enum object_type type
, const char *path
, unsigned flags
);
530 extern int index_path(unsigned char *sha1
, const char *path
, struct stat
*st
, unsigned flags
);
533 * Record to sd the data from st that we use to check whether a file
534 * might have changed.
536 extern void fill_stat_data(struct stat_data
*sd
, struct stat
*st
);
539 * Return 0 if st is consistent with a file not having been changed
540 * since sd was filled. If there are differences, return a
541 * combination of MTIME_CHANGED, CTIME_CHANGED, OWNER_CHANGED,
542 * INODE_CHANGED, and DATA_CHANGED.
544 extern int match_stat_data(const struct stat_data
*sd
, struct stat
*st
);
546 extern void fill_stat_cache_info(struct cache_entry
*ce
, struct stat
*st
);
548 #define REFRESH_REALLY 0x0001 /* ignore_valid */
549 #define REFRESH_UNMERGED 0x0002 /* allow unmerged */
550 #define REFRESH_QUIET 0x0004 /* be quiet about it */
551 #define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */
552 #define REFRESH_IGNORE_SUBMODULES 0x0010 /* ignore submodules */
553 #define REFRESH_IN_PORCELAIN 0x0020 /* user friendly output, not "needs update" */
554 extern int refresh_index(struct index_state
*, unsigned int flags
, const struct pathspec
*pathspec
, char *seen
, const char *header_msg
);
557 struct lock_file
*next
;
561 char filename
[PATH_MAX
];
563 #define LOCK_DIE_ON_ERROR 1
564 #define LOCK_NODEREF 2
565 extern int unable_to_lock_error(const char *path
, int err
);
566 extern NORETURN
void unable_to_lock_index_die(const char *path
, int err
);
567 extern int hold_lock_file_for_update(struct lock_file
*, const char *path
, int);
568 extern int hold_lock_file_for_append(struct lock_file
*, const char *path
, int);
569 extern int commit_lock_file(struct lock_file
*);
570 extern void update_index_if_able(struct index_state
*, struct lock_file
*);
572 extern int hold_locked_index(struct lock_file
*, int);
573 extern void set_alternate_index_output(const char *);
574 extern int close_lock_file(struct lock_file
*);
575 extern void rollback_lock_file(struct lock_file
*);
576 extern int delete_ref(const char *, const unsigned char *sha1
, int delopt
);
578 /* Environment bits from configuration mechanism */
579 extern int trust_executable_bit
;
580 extern int trust_ctime
;
581 extern int check_stat
;
582 extern int quote_path_fully
;
583 extern int has_symlinks
;
584 extern int minimum_abbrev
, default_abbrev
;
585 extern int ignore_case
;
586 extern int assume_unchanged
;
587 extern int prefer_symlink_refs
;
588 extern int log_all_ref_updates
;
589 extern int warn_ambiguous_refs
;
590 extern int warn_on_object_refname_ambiguity
;
591 extern int shared_repository
;
592 extern const char *apply_default_whitespace
;
593 extern const char *apply_default_ignorewhitespace
;
594 extern const char *git_attributes_file
;
595 extern int zlib_compression_level
;
596 extern int core_compression_level
;
597 extern int core_compression_seen
;
598 extern size_t packed_git_window_size
;
599 extern size_t packed_git_limit
;
600 extern size_t delta_base_cache_limit
;
601 extern unsigned long big_file_threshold
;
602 extern unsigned long pack_size_limit_cfg
;
605 * Do replace refs need to be checked this run? This variable is
606 * initialized to true unless --no-replace-object is used or
607 * $GIT_NO_REPLACE_OBJECTS is set, but is set to false by some
608 * commands that do not want replace references to be active. As an
609 * optimization it is also set to false if replace references have
610 * been sought but there were none.
612 extern int check_replace_refs
;
614 extern int fsync_object_files
;
615 extern int core_preload_index
;
616 extern int core_apply_sparse_checkout
;
617 extern int precomposed_unicode
;
620 * The character that begins a commented line in user-editable file
621 * that is subject to stripspace.
623 extern char 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
);
831 int offset_1st_component(const char *path
);
833 /* object replacement */
834 #define LOOKUP_REPLACE_OBJECT 1
835 extern void *read_sha1_file_extended(const unsigned char *sha1
, enum object_type
*type
, unsigned long *size
, unsigned flag
);
836 static inline void *read_sha1_file(const unsigned char *sha1
, enum object_type
*type
, unsigned long *size
)
838 return read_sha1_file_extended(sha1
, type
, size
, LOOKUP_REPLACE_OBJECT
);
842 * This internal function is only declared here for the benefit of
843 * lookup_replace_object(). Please do not call it directly.
845 extern const unsigned char *do_lookup_replace_object(const unsigned char *sha1
);
848 * If object sha1 should be replaced, return the replacement object's
849 * name (replaced recursively, if necessary). The return value is
850 * either sha1 or a pointer to a permanently-allocated value. When
851 * object replacement is suppressed, always return sha1.
853 static inline const unsigned char *lookup_replace_object(const unsigned char *sha1
)
855 if (!check_replace_refs
)
857 return do_lookup_replace_object(sha1
);
860 static inline const unsigned char *lookup_replace_object_extended(const unsigned char *sha1
, unsigned flag
)
862 if (!(flag
& LOOKUP_REPLACE_OBJECT
))
864 return lookup_replace_object(sha1
);
867 /* Read and unpack a sha1 file into memory, write memory to a sha1 file */
868 extern int sha1_object_info(const unsigned char *, unsigned long *);
869 extern int hash_sha1_file(const void *buf
, unsigned long len
, const char *type
, unsigned char *sha1
);
870 extern int write_sha1_file(const void *buf
, unsigned long len
, const char *type
, unsigned char *return_sha1
);
871 extern int pretend_sha1_file(void *, unsigned long, enum object_type
, unsigned char *);
872 extern int force_object_loose(const unsigned char *sha1
, time_t mtime
);
873 extern int git_open_noatime(const char *name
);
874 extern void *map_sha1_file(const unsigned char *sha1
, unsigned long *size
);
875 extern int unpack_sha1_header(git_zstream
*stream
, unsigned char *map
, unsigned long mapsize
, void *buffer
, unsigned long bufsiz
);
876 extern int parse_sha1_header(const char *hdr
, unsigned long *sizep
);
878 /* global flag to enable extra checks when accessing packed objects */
879 extern int do_check_packed_object_crc
;
881 extern int check_sha1_signature(const unsigned char *sha1
, void *buf
, unsigned long size
, const char *type
);
883 extern int move_temp_to_file(const char *tmpfile
, const char *filename
);
885 extern int has_sha1_pack(const unsigned char *sha1
);
888 * Return true iff we have an object named sha1, whether local or in
889 * an alternate object database, and whether packed or loose. This
890 * function does not respect replace references.
892 extern int has_sha1_file(const unsigned char *sha1
);
895 * Return true iff an alternate object database has a loose object
896 * with the specified name. This function does not respect replace
899 extern int has_loose_object_nonlocal(const unsigned char *sha1
);
901 extern int has_pack_index(const unsigned char *sha1
);
903 extern void assert_sha1_type(const unsigned char *sha1
, enum object_type expect
);
905 extern const signed char hexval_table
[256];
906 static inline unsigned int hexval(unsigned char c
)
908 return hexval_table
[c
];
911 /* Convert to/from hex/sha1 representation */
912 #define MINIMUM_ABBREV minimum_abbrev
913 #define DEFAULT_ABBREV default_abbrev
915 struct object_context
{
916 unsigned char tree
[20];
921 #define GET_SHA1_QUIETLY 01
922 #define GET_SHA1_COMMIT 02
923 #define GET_SHA1_COMMITTISH 04
924 #define GET_SHA1_TREE 010
925 #define GET_SHA1_TREEISH 020
926 #define GET_SHA1_BLOB 040
927 #define GET_SHA1_ONLY_TO_DIE 04000
929 extern int get_sha1(const char *str
, unsigned char *sha1
);
930 extern int get_sha1_commit(const char *str
, unsigned char *sha1
);
931 extern int get_sha1_committish(const char *str
, unsigned char *sha1
);
932 extern int get_sha1_tree(const char *str
, unsigned char *sha1
);
933 extern int get_sha1_treeish(const char *str
, unsigned char *sha1
);
934 extern int get_sha1_blob(const char *str
, unsigned char *sha1
);
935 extern void maybe_die_on_misspelt_object_name(const char *name
, const char *prefix
);
936 extern int get_sha1_with_context(const char *str
, unsigned flags
, unsigned char *sha1
, struct object_context
*orc
);
938 typedef int each_abbrev_fn(const unsigned char *sha1
, void *);
939 extern int for_each_abbrev(const char *prefix
, each_abbrev_fn
, void *);
942 * Try to read a SHA1 in hexadecimal format from the 40 characters
943 * starting at hex. Write the 20-byte result to sha1 in binary form.
944 * Return 0 on success. Reading stops if a NUL is encountered in the
945 * input, so it is safe to pass this function an arbitrary
946 * null-terminated string.
948 extern int get_sha1_hex(const char *hex
, unsigned char *sha1
);
950 extern char *sha1_to_hex(const unsigned char *sha1
); /* static buffer result! */
951 extern int read_ref_full(const char *refname
, unsigned char *sha1
,
952 int reading
, int *flags
);
953 extern int read_ref(const char *refname
, unsigned char *sha1
);
956 * Resolve a reference, recursively following symbolic refererences.
958 * Store the referred-to object's name in sha1 and return the name of
959 * the non-symbolic reference that ultimately pointed at it. The
960 * return value, if not NULL, is a pointer into either a static buffer
963 * If the reference cannot be resolved to an object, the behavior
964 * depends on the "reading" argument:
966 * - If reading is set, return NULL.
968 * - If reading is not set, clear sha1 and return the name of the last
969 * reference name in the chain, which will either be a non-symbolic
970 * reference or an undefined reference. If this is a prelude to
971 * "writing" to the ref, the return value is the name of the ref
972 * that will actually be created or changed.
974 * If flag is non-NULL, set the value that it points to the
975 * combination of REF_ISPACKED (if the reference was found among the
976 * packed references) and REF_ISSYMREF (if the initial reference was a
977 * symbolic reference).
979 * If ref is not a properly-formatted, normalized reference, return
980 * NULL. If more than MAXDEPTH recursive symbolic lookups are needed,
981 * give up and return NULL.
983 * errno is sometimes set on errors, but not always.
985 extern const char *resolve_ref_unsafe(const char *ref
, unsigned char *sha1
, int reading
, int *flag
);
986 extern char *resolve_refdup(const char *ref
, unsigned char *sha1
, int reading
, int *flag
);
988 extern int dwim_ref(const char *str
, int len
, unsigned char *sha1
, char **ref
);
989 extern int dwim_log(const char *str
, int len
, unsigned char *sha1
, char **ref
);
990 extern int interpret_branch_name(const char *str
, int len
, struct strbuf
*);
991 extern int get_sha1_mb(const char *str
, unsigned char *sha1
);
994 * Return true iff abbrev_name is a possible abbreviation for
995 * full_name according to the rules defined by ref_rev_parse_rules in
998 extern int refname_match(const char *abbrev_name
, const char *full_name
);
1000 extern int create_symref(const char *ref
, const char *refs_heads_master
, const char *logmsg
);
1001 extern int validate_headref(const char *ref
);
1003 extern int base_name_compare(const char *name1
, int len1
, int mode1
, const char *name2
, int len2
, int mode2
);
1004 extern int df_name_compare(const char *name1
, int len1
, int mode1
, const char *name2
, int len2
, int mode2
);
1005 extern int cache_name_compare(const char *name1
, int len1
, const char *name2
, int len2
);
1006 extern int cache_name_stage_compare(const char *name1
, int len1
, int stage1
, const char *name2
, int len2
, int stage2
);
1008 extern void *read_object_with_reference(const unsigned char *sha1
,
1009 const char *required_type
,
1010 unsigned long *size
,
1011 unsigned char *sha1_ret
);
1013 extern struct object
*peel_to_type(const char *name
, int namelen
,
1014 struct object
*o
, enum object_type
);
1026 const char *show_date(unsigned long time
, int timezone
, enum date_mode mode
);
1027 void show_date_relative(unsigned long time
, int tz
, const struct timeval
*now
,
1028 struct strbuf
*timebuf
);
1029 int parse_date(const char *date
, char *buf
, int bufsize
);
1030 int parse_date_basic(const char *date
, unsigned long *timestamp
, int *offset
);
1031 int parse_expiry_date(const char *date
, unsigned long *timestamp
);
1032 void datestamp(char *buf
, int bufsize
);
1033 #define approxidate(s) approxidate_careful((s), NULL)
1034 unsigned long approxidate_careful(const char *, int *);
1035 unsigned long approxidate_relative(const char *date
, const struct timeval
*now
);
1036 enum date_mode
parse_date_format(const char *format
);
1037 int date_overflows(unsigned long date
);
1039 #define IDENT_STRICT 1
1040 #define IDENT_NO_DATE 2
1041 #define IDENT_NO_NAME 4
1042 extern const char *git_author_info(int);
1043 extern const char *git_committer_info(int);
1044 extern const char *fmt_ident(const char *name
, const char *email
, const char *date_str
, int);
1045 extern const char *fmt_name(const char *name
, const char *email
);
1046 extern const char *ident_default_email(void);
1047 extern const char *git_editor(void);
1048 extern const char *git_pager(int stdout_is_tty
);
1049 extern int git_ident_config(const char *, const char *, void *);
1051 struct ident_split
{
1052 const char *name_begin
;
1053 const char *name_end
;
1054 const char *mail_begin
;
1055 const char *mail_end
;
1056 const char *date_begin
;
1057 const char *date_end
;
1058 const char *tz_begin
;
1062 * Signals an success with 0, but time part of the result may be NULL
1063 * if the input lacks timestamp and zone
1065 extern int split_ident_line(struct ident_split
*, const char *, int);
1068 * Compare split idents for equality or strict ordering. Note that we
1069 * compare only the ident part of the line, ignoring any timestamp.
1071 * Because there are two fields, we must choose one as the primary key; we
1072 * currently arbitrarily pick the email.
1074 extern int ident_cmp(const struct ident_split
*, const struct ident_split
*);
1077 struct index_state
*istate
;
1078 const char *base_dir
;
1086 #define TEMPORARY_FILENAME_LENGTH 25
1087 extern int checkout_entry(struct cache_entry
*ce
, const struct checkout
*state
, char *topath
);
1090 char path
[PATH_MAX
+ 1];
1094 int prefix_len_stat_func
;
1097 extern int has_symlink_leading_path(const char *name
, int len
);
1098 extern int threaded_has_symlink_leading_path(struct cache_def
*, const char *, int);
1099 extern int check_leading_path(const char *name
, int len
);
1100 extern int has_dirs_only_path(const char *name
, int len
, int prefix_len
);
1101 extern void schedule_dir_for_removal(const char *name
, int len
);
1102 extern void remove_scheduled_dirs(void);
1104 extern struct alternate_object_database
{
1105 struct alternate_object_database
*next
;
1107 char base
[FLEX_ARRAY
]; /* more */
1109 extern void prepare_alt_odb(void);
1110 extern void read_info_alternates(const char * relative_base
, int depth
);
1111 extern void add_to_alternates_file(const char *reference
);
1112 typedef int alt_odb_fn(struct alternate_object_database
*, void *);
1113 extern void foreach_alt_odb(alt_odb_fn
, void*);
1115 struct pack_window
{
1116 struct pack_window
*next
;
1117 unsigned char *base
;
1120 unsigned int last_used
;
1121 unsigned int inuse_cnt
;
1124 extern struct packed_git
{
1125 struct packed_git
*next
;
1126 struct pack_window
*windows
;
1128 const void *index_data
;
1130 uint32_t num_objects
;
1131 uint32_t num_bad_objects
;
1132 unsigned char *bad_object_sha1
;
1136 unsigned pack_local
:1,
1139 unsigned char sha1
[20];
1140 /* something like ".git/objects/pack/xxxxx.pack" */
1141 char pack_name
[FLEX_ARRAY
]; /* more */
1146 unsigned char sha1
[20];
1147 struct packed_git
*p
;
1150 extern struct packed_git
*parse_pack_index(unsigned char *sha1
, const char *idx_path
);
1152 /* A hook for count-objects to report invalid files in pack directory */
1153 extern void (*report_garbage
)(const char *desc
, const char *path
);
1155 extern void prepare_packed_git(void);
1156 extern void reprepare_packed_git(void);
1157 extern void install_packed_git(struct packed_git
*pack
);
1159 extern struct packed_git
*find_sha1_pack(const unsigned char *sha1
,
1160 struct packed_git
*packs
);
1162 extern void pack_report(void);
1165 * mmap the index file for the specified packfile (if it is not
1166 * already mmapped). Return 0 on success.
1168 extern int open_pack_index(struct packed_git
*);
1171 * munmap the index file for the specified packfile (if it is
1172 * currently mmapped).
1174 extern void close_pack_index(struct packed_git
*);
1176 extern unsigned char *use_pack(struct packed_git
*, struct pack_window
**, off_t
, unsigned long *);
1177 extern void close_pack_windows(struct packed_git
*);
1178 extern void unuse_pack(struct pack_window
**);
1179 extern void free_pack_by_name(const char *);
1180 extern void clear_delta_base_cache(void);
1181 extern struct packed_git
*add_packed_git(const char *, int, int);
1184 * Return the SHA-1 of the nth object within the specified packfile.
1185 * Open the index if it is not already open. The return value points
1186 * at the SHA-1 within the mmapped index. Return NULL if there is an
1189 extern const unsigned char *nth_packed_object_sha1(struct packed_git
*, uint32_t n
);
1192 * Return the offset of the nth object within the specified packfile.
1193 * The index must already be opened.
1195 extern off_t
nth_packed_object_offset(const struct packed_git
*, uint32_t n
);
1198 * If the object named sha1 is present in the specified packfile,
1199 * return its offset within the packfile; otherwise, return 0.
1201 extern off_t
find_pack_entry_one(const unsigned char *sha1
, struct packed_git
*);
1203 extern int is_pack_valid(struct packed_git
*);
1204 extern void *unpack_entry(struct packed_git
*, off_t
, enum object_type
*, unsigned long *);
1205 extern unsigned long unpack_object_header_buffer(const unsigned char *buf
, unsigned long len
, enum object_type
*type
, unsigned long *sizep
);
1206 extern unsigned long get_size_from_delta(struct packed_git
*, struct pack_window
**, off_t
);
1207 extern int unpack_object_header(struct packed_git
*, struct pack_window
**, off_t
*, unsigned long *);
1209 struct object_info
{
1211 enum object_type
*typep
;
1212 unsigned long *sizep
;
1213 unsigned long *disk_sizep
;
1214 unsigned char *delta_base_sha1
;
1226 * ... Nothing to expose in this case
1229 * ... Nothing to expose in this case
1233 struct packed_git
*pack
;
1235 unsigned int is_delta
;
1239 extern int sha1_object_info_extended(const unsigned char *, struct object_info
*, unsigned flags
);
1241 /* Dumb servers support */
1242 extern int update_server_info(int);
1244 /* git_config_parse_key() returns these negated: */
1245 #define CONFIG_INVALID_KEY 1
1246 #define CONFIG_NO_SECTION_OR_NAME 2
1247 /* git_config_set(), git_config_set_multivar() return the above or these: */
1248 #define CONFIG_NO_LOCK -1
1249 #define CONFIG_INVALID_FILE 3
1250 #define CONFIG_NO_WRITE 4
1251 #define CONFIG_NOTHING_SET 5
1252 #define CONFIG_INVALID_PATTERN 6
1253 #define CONFIG_GENERIC_ERROR 7
1255 struct git_config_source
{
1256 unsigned int use_stdin
:1;
1261 typedef int (*config_fn_t
)(const char *, const char *, void *);
1262 extern int git_default_config(const char *, const char *, void *);
1263 extern int git_config_from_file(config_fn_t fn
, const char *, void *);
1264 extern int git_config_from_buf(config_fn_t fn
, const char *name
,
1265 const char *buf
, size_t len
, void *data
);
1266 extern void git_config_push_parameter(const char *text
);
1267 extern int git_config_from_parameters(config_fn_t fn
, void *data
);
1268 extern int git_config(config_fn_t fn
, void *);
1269 extern int git_config_with_options(config_fn_t fn
, void *,
1270 struct git_config_source
*config_source
,
1271 int respect_includes
);
1272 extern int git_config_early(config_fn_t fn
, void *, const char *repo_config
);
1273 extern int git_parse_ulong(const char *, unsigned long *);
1274 extern int git_config_int(const char *, const char *);
1275 extern int64_t git_config_int64(const char *, const char *);
1276 extern unsigned long git_config_ulong(const char *, const char *);
1277 extern int git_config_bool_or_int(const char *, const char *, int *);
1278 extern int git_config_bool(const char *, const char *);
1279 extern int git_config_maybe_bool(const char *, const char *);
1280 extern int git_config_string(const char **, const char *, const char *);
1281 extern int git_config_pathname(const char **, const char *, const char *);
1282 extern int git_config_set_in_file(const char *, const char *, const char *);
1283 extern int git_config_set(const char *, const char *);
1284 extern int git_config_parse_key(const char *, char **, int *);
1285 extern int git_config_set_multivar(const char *, const char *, const char *, int);
1286 extern int git_config_set_multivar_in_file(const char *, const char *, const char *, const char *, int);
1287 extern int git_config_rename_section(const char *, const char *);
1288 extern int git_config_rename_section_in_file(const char *, const char *, const char *);
1289 extern const char *git_etc_gitconfig(void);
1290 extern int check_repository_format_version(const char *var
, const char *value
, void *cb
);
1291 extern int git_env_bool(const char *, int);
1292 extern int git_config_system(void);
1293 extern int config_error_nonbool(const char *);
1294 #if defined(__GNUC__) && ! defined(__clang__)
1295 #define config_error_nonbool(s) (config_error_nonbool(s), -1)
1297 extern const char *get_log_output_encoding(void);
1298 extern const char *get_commit_output_encoding(void);
1300 extern int git_config_parse_parameter(const char *, config_fn_t fn
, void *data
);
1302 struct config_include_data
{
1307 #define CONFIG_INCLUDE_INIT { 0 }
1308 extern int git_config_include(const char *name
, const char *value
, void *data
);
1311 * Match and parse a config key of the form:
1313 * section.(subsection.)?key
1315 * (i.e., what gets handed to a config_fn_t). The caller provides the section;
1316 * we return -1 if it does not match, 0 otherwise. The subsection and key
1317 * out-parameters are filled by the function (and subsection is NULL if it is
1320 extern int parse_config_key(const char *var
,
1321 const char *section
,
1322 const char **subsection
, int *subsection_len
,
1325 extern int committer_ident_sufficiently_given(void);
1326 extern int author_ident_sufficiently_given(void);
1328 extern const char *git_commit_encoding
;
1329 extern const char *git_log_output_encoding
;
1330 extern const char *git_mailmap_file
;
1331 extern const char *git_mailmap_blob
;
1333 /* IO helper functions */
1334 extern void maybe_flush_or_die(FILE *, const char *);
1335 extern int copy_fd(int ifd
, int ofd
);
1336 extern int copy_file(const char *dst
, const char *src
, int mode
);
1337 extern int copy_file_with_time(const char *dst
, const char *src
, int mode
);
1338 extern void write_or_die(int fd
, const void *buf
, size_t count
);
1339 extern int write_or_whine(int fd
, const void *buf
, size_t count
, const char *msg
);
1340 extern int write_or_whine_pipe(int fd
, const void *buf
, size_t count
, const char *msg
);
1341 extern void fsync_or_die(int fd
, const char *);
1343 extern ssize_t
read_in_full(int fd
, void *buf
, size_t count
);
1344 extern ssize_t
write_in_full(int fd
, const void *buf
, size_t count
);
1345 static inline ssize_t
write_str_in_full(int fd
, const char *str
)
1347 return write_in_full(fd
, str
, strlen(str
));
1351 extern void setup_pager(void);
1352 extern const char *pager_program
;
1353 extern int pager_in_use(void);
1354 extern int pager_use_color
;
1355 extern int term_columns(void);
1356 extern int decimal_width(int);
1357 extern int check_pager_config(const char *cmd
);
1359 extern const char *editor_program
;
1360 extern const char *askpass_program
;
1361 extern const char *excludes_file
;
1364 int decode_85(char *dst
, const char *line
, int linelen
);
1365 void encode_85(char *buf
, const unsigned char *data
, int bytes
);
1368 extern void *alloc_blob_node(void);
1369 extern void *alloc_tree_node(void);
1370 extern void *alloc_commit_node(void);
1371 extern void *alloc_tag_node(void);
1372 extern void *alloc_object_node(void);
1373 extern void alloc_report(void);
1376 __attribute__((format (printf
, 1, 2)))
1377 extern void trace_printf(const char *format
, ...);
1378 __attribute__((format (printf
, 2, 3)))
1379 extern void trace_argv_printf(const char **argv
, const char *format
, ...);
1380 extern void trace_repo_setup(const char *prefix
);
1381 extern int trace_want(const char *key
);
1382 __attribute__((format (printf
, 2, 3)))
1383 extern void trace_printf_key(const char *key
, const char *fmt
, ...);
1384 extern void trace_strbuf(const char *key
, const struct strbuf
*buf
);
1386 void packet_trace_identity(const char *prog
);
1390 * return 0 if success, 1 - if addition of a file failed and
1391 * ADD_FILES_IGNORE_ERRORS was specified in flags
1393 int add_files_to_cache(const char *prefix
, const struct pathspec
*pathspec
, int flags
);
1396 extern int diff_auto_refresh_index
;
1399 void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
1400 void shift_tree_by(const unsigned char *, const unsigned char *, unsigned char *, const char *);
1404 * used by both diff and apply
1405 * last two digits are tab width
1407 #define WS_BLANK_AT_EOL 0100
1408 #define WS_SPACE_BEFORE_TAB 0200
1409 #define WS_INDENT_WITH_NON_TAB 0400
1410 #define WS_CR_AT_EOL 01000
1411 #define WS_BLANK_AT_EOF 02000
1412 #define WS_TAB_IN_INDENT 04000
1413 #define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF)
1414 #define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|8)
1415 #define WS_TAB_WIDTH_MASK 077
1416 extern unsigned whitespace_rule_cfg
;
1417 extern unsigned whitespace_rule(const char *);
1418 extern unsigned parse_whitespace_rule(const char *);
1419 extern unsigned ws_check(const char *line
, int len
, unsigned ws_rule
);
1420 extern void ws_check_emit(const char *line
, int len
, unsigned ws_rule
, FILE *stream
, const char *set
, const char *reset
, const char *ws
);
1421 extern char *whitespace_error_string(unsigned ws
);
1422 extern void ws_fix_copy(struct strbuf
*, const char *, int, unsigned, int *);
1423 extern int ws_blank_line(const char *line
, int len
, unsigned ws_rule
);
1424 #define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK)
1427 int report_path_error(const char *ps_matched
, const struct pathspec
*pathspec
, const char *prefix
);
1428 void overlay_tree_on_cache(const char *tree_name
, const char *prefix
);
1430 char *alias_lookup(const char *alias
);
1431 int split_cmdline(char *cmdline
, const char ***argv
);
1432 /* Takes a negative value returned by split_cmdline */
1433 const char *split_cmdline_strerror(int cmdline_errno
);
1436 struct startup_info
{
1437 int have_repository
;
1440 extern struct startup_info
*startup_info
;
1444 int try_merge_command(const char *strategy
, size_t xopts_nr
,
1445 const char **xopts
, struct commit_list
*common
,
1446 const char *head_arg
, struct commit_list
*remotes
);
1447 int checkout_fast_forward(const unsigned char *from
,
1448 const unsigned char *to
,
1449 int overwrite_ignore
);
1452 int sane_execvp(const char *file
, char *const argv
[]);
1455 * A struct to encapsulate the concept of whether a file has changed
1456 * since we last checked it. This uses criteria similar to those used
1459 struct stat_validity
{
1460 struct stat_data
*sd
;
1463 void stat_validity_clear(struct stat_validity
*sv
);
1466 * Returns 1 if the path is a regular file (or a symlink to a regular
1467 * file) and matches the saved stat_validity, 0 otherwise. A missing
1468 * or inaccessible file is considered a match if the struct was just
1469 * initialized, or if the previous update found an inaccessible file.
1471 int stat_validity_check(struct stat_validity
*sv
, const char *path
);
1474 * Update the stat_validity from a file opened at descriptor fd. If
1475 * the file is missing, inaccessible, or not a regular file, then
1476 * future calls to stat_validity_check will match iff one of those
1477 * conditions continues to be true.
1479 void stat_validity_update(struct stat_validity
*sv
, int fd
);
1481 int versioncmp(const char *s1
, const char *s2
);
1483 #endif /* CACHE_H */