entry: fix filter lookup
[git/jnareb-git.git] / cache.h
blobc781c118d253572930061fb5e3263027076dd3a1
1 #ifndef CACHE_H
2 #define CACHE_H
4 #include "git-compat-util.h"
5 #include "strbuf.h"
6 #include "hash.h"
7 #include "advice.h"
8 #include "gettext.h"
9 #include "convert.h"
11 #include SHA1_HEADER
12 #ifndef git_SHA_CTX
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
17 #endif
19 #include <zlib.h>
20 #if defined(NO_DEFLATE_BOUND) || ZLIB_VERNUM < 0x1200
21 #define deflateBound(c,s) ((s) + (((s) + 7) >> 3) + (((s) + 63) >> 6) + 11)
22 #endif
24 void git_inflate_init(z_streamp strm);
25 void git_inflate_end(z_streamp strm);
26 int git_inflate(z_streamp strm, int flush);
28 #if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT)
29 #define DTYPE(de) ((de)->d_type)
30 #else
31 #undef DT_UNKNOWN
32 #undef DT_DIR
33 #undef DT_REG
34 #undef DT_LNK
35 #define DT_UNKNOWN 0
36 #define DT_DIR 1
37 #define DT_REG 2
38 #define DT_LNK 3
39 #define DTYPE(de) DT_UNKNOWN
40 #endif
42 /* unknown mode (impossible combination S_IFIFO|S_IFCHR) */
43 #define S_IFINVALID 0030000
46 * A "directory link" is a link to another git directory.
48 * The value 0160000 is not normally a valid mode, and
49 * also just happens to be S_IFDIR + S_IFLNK
51 * NOTE! We *really* shouldn't depend on the S_IFxxx macros
52 * always having the same values everywhere. We should use
53 * our internal git values for these things, and then we can
54 * translate that to the OS-specific value. It just so
55 * happens that everybody shares the same bit representation
56 * in the UNIX world (and apparently wider too..)
58 #define S_IFGITLINK 0160000
59 #define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK)
62 * Intensive research over the course of many years has shown that
63 * port 9418 is totally unused by anything else. Or
65 * Your search - "port 9418" - did not match any documents.
67 * as www.google.com puts it.
69 * This port has been properly assigned for git use by IANA:
70 * git (Assigned-9418) [I06-050728-0001].
72 * git 9418/tcp git pack transfer service
73 * git 9418/udp git pack transfer service
75 * with Linus Torvalds <torvalds@osdl.org> as the point of
76 * contact. September 2005.
78 * See http://www.iana.org/assignments/port-numbers
80 #define DEFAULT_GIT_PORT 9418
83 * Basic data structures for the directory cache
86 #define CACHE_SIGNATURE 0x44495243 /* "DIRC" */
87 struct cache_header {
88 unsigned int hdr_signature;
89 unsigned int hdr_version;
90 unsigned int hdr_entries;
94 * The "cache_time" is just the low 32 bits of the
95 * time. It doesn't matter if it overflows - we only
96 * check it for equality in the 32 bits we save.
98 struct cache_time {
99 unsigned int sec;
100 unsigned int nsec;
104 * dev/ino/uid/gid/size are also just tracked to the low 32 bits
105 * Again - this is just a (very strong in practice) heuristic that
106 * the inode hasn't changed.
108 * We save the fields in big-endian order to allow using the
109 * index file over NFS transparently.
111 struct ondisk_cache_entry {
112 struct cache_time ctime;
113 struct cache_time mtime;
114 unsigned int dev;
115 unsigned int ino;
116 unsigned int mode;
117 unsigned int uid;
118 unsigned int gid;
119 unsigned int size;
120 unsigned char sha1[20];
121 unsigned short flags;
122 char name[FLEX_ARRAY]; /* more */
126 * This struct is used when CE_EXTENDED bit is 1
127 * The struct must match ondisk_cache_entry exactly from
128 * ctime till flags
130 struct ondisk_cache_entry_extended {
131 struct cache_time ctime;
132 struct cache_time mtime;
133 unsigned int dev;
134 unsigned int ino;
135 unsigned int mode;
136 unsigned int uid;
137 unsigned int gid;
138 unsigned int size;
139 unsigned char sha1[20];
140 unsigned short flags;
141 unsigned short flags2;
142 char name[FLEX_ARRAY]; /* more */
145 struct cache_entry {
146 struct cache_time ce_ctime;
147 struct cache_time ce_mtime;
148 unsigned int ce_dev;
149 unsigned int ce_ino;
150 unsigned int ce_mode;
151 unsigned int ce_uid;
152 unsigned int ce_gid;
153 unsigned int ce_size;
154 unsigned int ce_flags;
155 unsigned char sha1[20];
156 struct cache_entry *next;
157 char name[FLEX_ARRAY]; /* more */
160 #define CE_NAMEMASK (0x0fff)
161 #define CE_STAGEMASK (0x3000)
162 #define CE_EXTENDED (0x4000)
163 #define CE_VALID (0x8000)
164 #define CE_STAGESHIFT 12
167 * Range 0xFFFF0000 in ce_flags is divided into
168 * two parts: in-memory flags and on-disk ones.
169 * Flags in CE_EXTENDED_FLAGS will get saved on-disk
170 * if you want to save a new flag, add it in
171 * CE_EXTENDED_FLAGS
173 * In-memory only flags
175 #define CE_UPDATE (1 << 16)
176 #define CE_REMOVE (1 << 17)
177 #define CE_UPTODATE (1 << 18)
178 #define CE_ADDED (1 << 19)
180 #define CE_HASHED (1 << 20)
181 #define CE_UNHASHED (1 << 21)
182 #define CE_WT_REMOVE (1 << 22) /* remove in work directory */
183 #define CE_CONFLICTED (1 << 23)
185 #define CE_UNPACKED (1 << 24)
186 #define CE_NEW_SKIP_WORKTREE (1 << 25)
189 * Extended on-disk flags
191 #define CE_INTENT_TO_ADD (1 << 29)
192 #define CE_SKIP_WORKTREE (1 << 30)
193 /* CE_EXTENDED2 is for future extension */
194 #define CE_EXTENDED2 (1 << 31)
196 #define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD | CE_SKIP_WORKTREE)
199 * Safeguard to avoid saving wrong flags:
200 * - CE_EXTENDED2 won't get saved until its semantic is known
201 * - Bits in 0x0000FFFF have been saved in ce_flags already
202 * - Bits in 0x003F0000 are currently in-memory flags
204 #if CE_EXTENDED_FLAGS & 0x803FFFFF
205 #error "CE_EXTENDED_FLAGS out of range"
206 #endif
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 #define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)
213 static inline void copy_cache_entry(struct cache_entry *dst, struct cache_entry *src)
215 unsigned int state = dst->ce_flags & CE_STATE_MASK;
217 /* Don't copy hash chain and name */
218 memcpy(dst, src, offsetof(struct cache_entry, next));
220 /* Restore the hash state */
221 dst->ce_flags = (dst->ce_flags & ~CE_STATE_MASK) | state;
224 static inline unsigned create_ce_flags(size_t len, unsigned stage)
226 if (len >= CE_NAMEMASK)
227 len = CE_NAMEMASK;
228 return (len | (stage << CE_STAGESHIFT));
231 static inline size_t ce_namelen(const struct cache_entry *ce)
233 size_t len = ce->ce_flags & CE_NAMEMASK;
234 if (len < CE_NAMEMASK)
235 return len;
236 return strlen(ce->name + CE_NAMEMASK) + CE_NAMEMASK;
239 #define ce_size(ce) cache_entry_size(ce_namelen(ce))
240 #define ondisk_ce_size(ce) (((ce)->ce_flags & CE_EXTENDED) ? \
241 ondisk_cache_entry_extended_size(ce_namelen(ce)) : \
242 ondisk_cache_entry_size(ce_namelen(ce)))
243 #define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT)
244 #define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE)
245 #define ce_skip_worktree(ce) ((ce)->ce_flags & CE_SKIP_WORKTREE)
246 #define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE)
248 #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644)
249 static inline unsigned int create_ce_mode(unsigned int mode)
251 if (S_ISLNK(mode))
252 return S_IFLNK;
253 if (S_ISDIR(mode) || S_ISGITLINK(mode))
254 return S_IFGITLINK;
255 return S_IFREG | ce_permissions(mode);
257 static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned int mode)
259 extern int trust_executable_bit, has_symlinks;
260 if (!has_symlinks && S_ISREG(mode) &&
261 ce && S_ISLNK(ce->ce_mode))
262 return ce->ce_mode;
263 if (!trust_executable_bit && S_ISREG(mode)) {
264 if (ce && S_ISREG(ce->ce_mode))
265 return ce->ce_mode;
266 return create_ce_mode(0666);
268 return create_ce_mode(mode);
270 static inline int ce_to_dtype(const struct cache_entry *ce)
272 unsigned ce_mode = ntohl(ce->ce_mode);
273 if (S_ISREG(ce_mode))
274 return DT_REG;
275 else if (S_ISDIR(ce_mode) || S_ISGITLINK(ce_mode))
276 return DT_DIR;
277 else if (S_ISLNK(ce_mode))
278 return DT_LNK;
279 else
280 return DT_UNKNOWN;
282 static inline unsigned int canon_mode(unsigned int mode)
284 if (S_ISREG(mode))
285 return S_IFREG | ce_permissions(mode);
286 if (S_ISLNK(mode))
287 return S_IFLNK;
288 if (S_ISDIR(mode))
289 return S_IFDIR;
290 return S_IFGITLINK;
293 #define flexible_size(STRUCT,len) ((offsetof(struct STRUCT,name) + (len) + 8) & ~7)
294 #define cache_entry_size(len) flexible_size(cache_entry,len)
295 #define ondisk_cache_entry_size(len) flexible_size(ondisk_cache_entry,len)
296 #define ondisk_cache_entry_extended_size(len) flexible_size(ondisk_cache_entry_extended,len)
298 struct index_state {
299 struct cache_entry **cache;
300 unsigned int cache_nr, cache_alloc, cache_changed;
301 struct string_list *resolve_undo;
302 struct cache_tree *cache_tree;
303 struct cache_time timestamp;
304 void *alloc;
305 unsigned name_hash_initialized : 1,
306 initialized : 1;
307 struct hash_table name_hash;
310 extern struct index_state the_index;
312 /* Name hashing */
313 extern void add_name_hash(struct index_state *istate, struct cache_entry *ce);
315 * We don't actually *remove* it, we can just mark it invalid so that
316 * we won't find it in lookups.
318 * Not only would we have to search the lists (simple enough), but
319 * we'd also have to rehash other hash buckets in case this makes the
320 * hash bucket empty (common). So it's much better to just mark
321 * it.
323 static inline void remove_name_hash(struct cache_entry *ce)
325 ce->ce_flags |= CE_UNHASHED;
329 #ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
330 #define active_cache (the_index.cache)
331 #define active_nr (the_index.cache_nr)
332 #define active_alloc (the_index.cache_alloc)
333 #define active_cache_changed (the_index.cache_changed)
334 #define active_cache_tree (the_index.cache_tree)
336 #define read_cache() read_index(&the_index)
337 #define read_cache_from(path) read_index_from(&the_index, (path))
338 #define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec))
339 #define is_cache_unborn() is_index_unborn(&the_index)
340 #define read_cache_unmerged() read_index_unmerged(&the_index)
341 #define write_cache(newfd, cache, entries) write_index(&the_index, (newfd))
342 #define discard_cache() discard_index(&the_index)
343 #define unmerged_cache() unmerged_index(&the_index)
344 #define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen))
345 #define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option))
346 #define rename_cache_entry_at(pos, new_name) rename_index_entry_at(&the_index, (pos), (new_name))
347 #define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos))
348 #define remove_file_from_cache(path) remove_file_from_index(&the_index, (path))
349 #define add_to_cache(path, st, flags) add_to_index(&the_index, (path), (st), (flags))
350 #define add_file_to_cache(path, flags) add_file_to_index(&the_index, (path), (flags))
351 #define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL)
352 #define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options))
353 #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
354 #define cache_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase))
355 #define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen))
356 #define resolve_undo_clear() resolve_undo_clear_index(&the_index)
357 #define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at)
358 #define unmerge_cache(pathspec) unmerge_index(&the_index, pathspec)
359 #endif
361 enum object_type {
362 OBJ_BAD = -1,
363 OBJ_NONE = 0,
364 OBJ_COMMIT = 1,
365 OBJ_TREE = 2,
366 OBJ_BLOB = 3,
367 OBJ_TAG = 4,
368 /* 5 for future expansion */
369 OBJ_OFS_DELTA = 6,
370 OBJ_REF_DELTA = 7,
371 OBJ_ANY,
372 OBJ_MAX
375 static inline enum object_type object_type(unsigned int mode)
377 return S_ISDIR(mode) ? OBJ_TREE :
378 S_ISGITLINK(mode) ? OBJ_COMMIT :
379 OBJ_BLOB;
382 #define GIT_DIR_ENVIRONMENT "GIT_DIR"
383 #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
384 #define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
385 #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
386 #define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
387 #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
388 #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR"
389 #define CONFIG_ENVIRONMENT "GIT_CONFIG"
390 #define CONFIG_DATA_ENVIRONMENT "GIT_CONFIG_PARAMETERS"
391 #define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH"
392 #define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES"
393 #define NO_REPLACE_OBJECTS_ENVIRONMENT "GIT_NO_REPLACE_OBJECTS"
394 #define GITATTRIBUTES_FILE ".gitattributes"
395 #define INFOATTRIBUTES_FILE "info/attributes"
396 #define ATTRIBUTE_MACRO_PREFIX "[attr]"
397 #define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF"
398 #define GIT_NOTES_DEFAULT_REF "refs/notes/commits"
399 #define GIT_NOTES_DISPLAY_REF_ENVIRONMENT "GIT_NOTES_DISPLAY_REF"
400 #define GIT_NOTES_REWRITE_REF_ENVIRONMENT "GIT_NOTES_REWRITE_REF"
401 #define GIT_NOTES_REWRITE_MODE_ENVIRONMENT "GIT_NOTES_REWRITE_MODE"
404 * Repository-local GIT_* environment variables
405 * The array is NULL-terminated to simplify its usage in contexts such
406 * environment creation or simple walk of the list.
407 * The number of non-NULL entries is available as a macro.
409 #define LOCAL_REPO_ENV_SIZE 9
410 extern const char *const local_repo_env[LOCAL_REPO_ENV_SIZE + 1];
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 int have_git_dir(void);
418 extern const char *get_git_dir(void);
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_work_tree(void);
424 extern const char *read_gitfile_gently(const char *path);
425 extern void set_git_work_tree(const char *tree);
427 #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
429 extern const char **get_pathspec(const char *prefix, const char **pathspec);
430 extern void setup_work_tree(void);
431 extern const char *setup_git_directory_gently(int *);
432 extern const char *setup_git_directory(void);
433 extern char *prefix_path(const char *prefix, int len, const char *path);
434 extern const char *prefix_filename(const char *prefix, int len, const char *path);
435 extern int check_filename(const char *prefix, const char *name);
436 extern void verify_filename(const char *prefix, const char *name);
437 extern void verify_non_filename(const char *prefix, const char *name);
439 #define INIT_DB_QUIET 0x0001
441 extern int set_git_dir_init(const char *git_dir, const char *real_git_dir, int);
442 extern int init_db(const char *template_dir, unsigned int flags);
444 #define alloc_nr(x) (((x)+16)*3/2)
447 * Realloc the buffer pointed at by variable 'x' so that it can hold
448 * at least 'nr' entries; the number of entries currently allocated
449 * is 'alloc', using the standard growing factor alloc_nr() macro.
451 * DO NOT USE any expression with side-effect for 'x', 'nr', or 'alloc'.
453 #define ALLOC_GROW(x, nr, alloc) \
454 do { \
455 if ((nr) > alloc) { \
456 if (alloc_nr(alloc) < (nr)) \
457 alloc = (nr); \
458 else \
459 alloc = alloc_nr(alloc); \
460 x = xrealloc((x), alloc * sizeof(*(x))); \
462 } while (0)
464 /* Initialize and use the cache information */
465 extern int read_index(struct index_state *);
466 extern int read_index_preload(struct index_state *, const char **pathspec);
467 extern int read_index_from(struct index_state *, const char *path);
468 extern int is_index_unborn(struct index_state *);
469 extern int read_index_unmerged(struct index_state *);
470 extern int write_index(struct index_state *, int newfd);
471 extern int discard_index(struct index_state *);
472 extern int unmerged_index(const struct index_state *);
473 extern int verify_path(const char *path);
474 extern struct cache_entry *index_name_exists(struct index_state *istate, const char *name, int namelen, int igncase);
475 extern int index_name_pos(const struct index_state *, const char *name, int namelen);
476 #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
477 #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
478 #define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
479 #define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
480 #define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */
481 extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option);
482 extern void rename_index_entry_at(struct index_state *, int pos, const char *new_name);
483 extern int remove_index_entry_at(struct index_state *, int pos);
484 extern void remove_marked_cache_entries(struct index_state *istate);
485 extern int remove_file_from_index(struct index_state *, const char *path);
486 #define ADD_CACHE_VERBOSE 1
487 #define ADD_CACHE_PRETEND 2
488 #define ADD_CACHE_IGNORE_ERRORS 4
489 #define ADD_CACHE_IGNORE_REMOVAL 8
490 #define ADD_CACHE_INTENT 16
491 extern int add_to_index(struct index_state *, const char *path, struct stat *, int flags);
492 extern int add_file_to_index(struct index_state *, const char *path, int flags);
493 extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, int refresh);
494 extern int ce_same_name(struct cache_entry *a, struct cache_entry *b);
495 extern int index_name_is_other(const struct index_state *, const char *, int);
497 /* do stat comparison even if CE_VALID is true */
498 #define CE_MATCH_IGNORE_VALID 01
499 /* do not check the contents but report dirty on racily-clean entries */
500 #define CE_MATCH_RACY_IS_DIRTY 02
501 /* do stat comparison even if CE_SKIP_WORKTREE is true */
502 #define CE_MATCH_IGNORE_SKIP_WORKTREE 04
503 extern int ie_match_stat(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
504 extern int ie_modified(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
506 struct pathspec {
507 const char **raw; /* get_pathspec() result, not freed by free_pathspec() */
508 int nr;
509 unsigned int has_wildcard:1;
510 unsigned int recursive:1;
511 int max_depth;
512 struct pathspec_item {
513 const char *match;
514 int len;
515 unsigned int use_wildcard:1;
516 } *items;
519 extern int init_pathspec(struct pathspec *, const char **);
520 extern void free_pathspec(struct pathspec *);
521 extern int ce_path_match(const struct cache_entry *ce, const struct pathspec *pathspec);
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);
527 extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
529 #define REFRESH_REALLY 0x0001 /* ignore_valid */
530 #define REFRESH_UNMERGED 0x0002 /* allow unmerged */
531 #define REFRESH_QUIET 0x0004 /* be quiet about it */
532 #define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */
533 #define REFRESH_IGNORE_SUBMODULES 0x0010 /* ignore submodules */
534 #define REFRESH_IN_PORCELAIN 0x0020 /* user friendly output, not "needs update" */
535 extern int refresh_index(struct index_state *, unsigned int flags, const char **pathspec, char *seen, const char *header_msg);
537 struct lock_file {
538 struct lock_file *next;
539 int fd;
540 pid_t owner;
541 char on_list;
542 char filename[PATH_MAX];
544 #define LOCK_DIE_ON_ERROR 1
545 #define LOCK_NODEREF 2
546 extern int unable_to_lock_error(const char *path, int err);
547 extern NORETURN void unable_to_lock_index_die(const char *path, int err);
548 extern int hold_lock_file_for_update(struct lock_file *, const char *path, int);
549 extern int hold_lock_file_for_append(struct lock_file *, const char *path, int);
550 extern int commit_lock_file(struct lock_file *);
551 extern void update_index_if_able(struct index_state *, struct lock_file *);
553 extern int hold_locked_index(struct lock_file *, int);
554 extern int commit_locked_index(struct lock_file *);
555 extern void set_alternate_index_output(const char *);
556 extern int close_lock_file(struct lock_file *);
557 extern void rollback_lock_file(struct lock_file *);
558 extern int delete_ref(const char *, const unsigned char *sha1, int delopt);
560 /* Environment bits from configuration mechanism */
561 extern int trust_executable_bit;
562 extern int trust_ctime;
563 extern int quote_path_fully;
564 extern int has_symlinks;
565 extern int minimum_abbrev, default_abbrev;
566 extern int ignore_case;
567 extern int assume_unchanged;
568 extern int prefer_symlink_refs;
569 extern int log_all_ref_updates;
570 extern int warn_ambiguous_refs;
571 extern int shared_repository;
572 extern const char *apply_default_whitespace;
573 extern const char *apply_default_ignorewhitespace;
574 extern int zlib_compression_level;
575 extern int core_compression_level;
576 extern int core_compression_seen;
577 extern size_t packed_git_window_size;
578 extern size_t packed_git_limit;
579 extern size_t delta_base_cache_limit;
580 extern unsigned long big_file_threshold;
581 extern int read_replace_refs;
582 extern int fsync_object_files;
583 extern int core_preload_index;
584 extern int core_apply_sparse_checkout;
586 enum branch_track {
587 BRANCH_TRACK_UNSPECIFIED = -1,
588 BRANCH_TRACK_NEVER = 0,
589 BRANCH_TRACK_REMOTE,
590 BRANCH_TRACK_ALWAYS,
591 BRANCH_TRACK_EXPLICIT,
592 BRANCH_TRACK_OVERRIDE
595 enum rebase_setup_type {
596 AUTOREBASE_NEVER = 0,
597 AUTOREBASE_LOCAL,
598 AUTOREBASE_REMOTE,
599 AUTOREBASE_ALWAYS
602 enum push_default_type {
603 PUSH_DEFAULT_NOTHING = 0,
604 PUSH_DEFAULT_MATCHING,
605 PUSH_DEFAULT_UPSTREAM,
606 PUSH_DEFAULT_CURRENT
609 extern enum branch_track git_branch_track;
610 extern enum rebase_setup_type autorebase;
611 extern enum push_default_type push_default;
613 enum object_creation_mode {
614 OBJECT_CREATION_USES_HARDLINKS = 0,
615 OBJECT_CREATION_USES_RENAMES = 1
618 extern enum object_creation_mode object_creation_mode;
620 extern char *notes_ref_name;
622 extern int grafts_replace_parents;
624 #define GIT_REPO_VERSION 0
625 extern int repository_format_version;
626 extern int check_repository_format(void);
628 #define MTIME_CHANGED 0x0001
629 #define CTIME_CHANGED 0x0002
630 #define OWNER_CHANGED 0x0004
631 #define MODE_CHANGED 0x0008
632 #define INODE_CHANGED 0x0010
633 #define DATA_CHANGED 0x0020
634 #define TYPE_CHANGED 0x0040
636 extern char *mksnpath(char *buf, size_t n, const char *fmt, ...)
637 __attribute__((format (printf, 3, 4)));
638 extern char *git_snpath(char *buf, size_t n, const char *fmt, ...)
639 __attribute__((format (printf, 3, 4)));
640 extern char *git_pathdup(const char *fmt, ...)
641 __attribute__((format (printf, 1, 2)));
643 /* Return a statically allocated filename matching the sha1 signature */
644 extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
645 extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
646 extern char *git_path_submodule(const char *path, const char *fmt, ...)
647 __attribute__((format (printf, 2, 3)));
649 extern char *sha1_file_name(const unsigned char *sha1);
650 extern char *sha1_pack_name(const unsigned char *sha1);
651 extern char *sha1_pack_index_name(const unsigned char *sha1);
652 extern const char *find_unique_abbrev(const unsigned char *sha1, int);
653 extern const unsigned char null_sha1[20];
655 static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
657 int i;
659 for (i = 0; i < 20; i++, sha1++, sha2++) {
660 if (*sha1 != *sha2)
661 return *sha1 - *sha2;
664 return 0;
667 static inline int is_null_sha1(const unsigned char *sha1)
669 return !hashcmp(sha1, null_sha1);
672 static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
674 memcpy(sha_dst, sha_src, 20);
676 static inline void hashclr(unsigned char *hash)
678 memset(hash, 0, 20);
681 #define EMPTY_TREE_SHA1_HEX \
682 "4b825dc642cb6eb9a060e54bf8d69288fbee4904"
683 #define EMPTY_TREE_SHA1_BIN_LITERAL \
684 "\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" \
685 "\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04"
686 #define EMPTY_TREE_SHA1_BIN \
687 ((const unsigned char *) EMPTY_TREE_SHA1_BIN_LITERAL)
689 int git_mkstemp(char *path, size_t n, const char *template);
691 int git_mkstemps(char *path, size_t n, const char *template, int suffix_len);
693 /* set default permissions by passing mode arguments to open(2) */
694 int git_mkstemps_mode(char *pattern, int suffix_len, int mode);
695 int git_mkstemp_mode(char *pattern, int mode);
698 * NOTE NOTE NOTE!!
700 * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must
701 * not be changed. Old repositories have core.sharedrepository written in
702 * numeric format, and therefore these values are preserved for compatibility
703 * reasons.
705 enum sharedrepo {
706 PERM_UMASK = 0,
707 OLD_PERM_GROUP = 1,
708 OLD_PERM_EVERYBODY = 2,
709 PERM_GROUP = 0660,
710 PERM_EVERYBODY = 0664
712 int git_config_perm(const char *var, const char *value);
713 int set_shared_perm(const char *path, int mode);
714 #define adjust_shared_perm(path) set_shared_perm((path), 0)
715 int safe_create_leading_directories(char *path);
716 int safe_create_leading_directories_const(const char *path);
717 int mkdir_in_gitdir(const char *path);
718 extern char *expand_user_path(const char *path);
719 char *enter_repo(char *path, int strict);
720 static inline int is_absolute_path(const char *path)
722 return path[0] == '/' || has_dos_drive_prefix(path);
724 int is_directory(const char *);
725 const char *real_path(const char *path);
726 const char *absolute_path(const char *path);
727 const char *relative_path(const char *abs, const char *base);
728 int normalize_path_copy(char *dst, const char *src);
729 int longest_ancestor_length(const char *path, const char *prefix_list);
730 char *strip_path_suffix(const char *path, const char *suffix);
731 int daemon_avoid_alias(const char *path);
732 int offset_1st_component(const char *path);
734 /* object replacement */
735 #define READ_SHA1_FILE_REPLACE 1
736 extern void *read_sha1_file_extended(const unsigned char *sha1, enum object_type *type, unsigned long *size, unsigned flag);
737 static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
739 return read_sha1_file_extended(sha1, type, size, READ_SHA1_FILE_REPLACE);
741 extern const unsigned char *do_lookup_replace_object(const unsigned char *sha1);
742 static inline const unsigned char *lookup_replace_object(const unsigned char *sha1)
744 if (!read_replace_refs)
745 return sha1;
746 return do_lookup_replace_object(sha1);
749 /* Read and unpack a sha1 file into memory, write memory to a sha1 file */
750 extern int sha1_object_info(const unsigned char *, unsigned long *);
751 extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1);
752 extern int write_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *return_sha1);
753 extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *);
754 extern int force_object_loose(const unsigned char *sha1, time_t mtime);
755 extern void *map_sha1_file(const unsigned char *sha1, unsigned long *size);
756 extern int unpack_sha1_header(z_stream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz);
757 extern int parse_sha1_header(const char *hdr, unsigned long *sizep);
759 /* global flag to enable extra checks when accessing packed objects */
760 extern int do_check_packed_object_crc;
762 extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type);
764 extern int move_temp_to_file(const char *tmpfile, const char *filename);
766 extern int has_sha1_pack(const unsigned char *sha1);
767 extern int has_sha1_file(const unsigned char *sha1);
768 extern int has_loose_object_nonlocal(const unsigned char *sha1);
770 extern int has_pack_index(const unsigned char *sha1);
772 extern void assert_sha1_type(const unsigned char *sha1, enum object_type expect);
774 extern const signed char hexval_table[256];
775 static inline unsigned int hexval(unsigned char c)
777 return hexval_table[c];
780 /* Convert to/from hex/sha1 representation */
781 #define MINIMUM_ABBREV minimum_abbrev
782 #define DEFAULT_ABBREV default_abbrev
784 struct object_context {
785 unsigned char tree[20];
786 char path[PATH_MAX];
787 unsigned mode;
790 extern int get_sha1(const char *str, unsigned char *sha1);
791 extern int get_sha1_with_mode_1(const char *str, unsigned char *sha1, unsigned *mode, int gently, const char *prefix);
792 static inline int get_sha1_with_mode(const char *str, unsigned char *sha1, unsigned *mode)
794 return get_sha1_with_mode_1(str, sha1, mode, 1, NULL);
796 extern int get_sha1_with_context_1(const char *name, unsigned char *sha1, struct object_context *orc, int gently, const char *prefix);
797 static inline int get_sha1_with_context(const char *str, unsigned char *sha1, struct object_context *orc)
799 return get_sha1_with_context_1(str, sha1, orc, 1, NULL);
801 extern int get_sha1_hex(const char *hex, unsigned char *sha1);
802 extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
803 extern int read_ref(const char *filename, unsigned char *sha1);
804 extern const char *resolve_ref(const char *path, unsigned char *sha1, int, int *);
805 extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref);
806 extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref);
807 extern int interpret_branch_name(const char *str, struct strbuf *);
808 extern int get_sha1_mb(const char *str, unsigned char *sha1);
810 extern int refname_match(const char *abbrev_name, const char *full_name, const char **rules);
811 extern const char *ref_rev_parse_rules[];
812 extern const char *ref_fetch_rules[];
814 extern int create_symref(const char *ref, const char *refs_heads_master, const char *logmsg);
815 extern int validate_headref(const char *ref);
817 extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
818 extern int df_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
819 extern int cache_name_compare(const char *name1, int len1, const char *name2, int len2);
821 extern void *read_object_with_reference(const unsigned char *sha1,
822 const char *required_type,
823 unsigned long *size,
824 unsigned char *sha1_ret);
826 extern struct object *peel_to_type(const char *name, int namelen,
827 struct object *o, enum object_type);
829 enum date_mode {
830 DATE_NORMAL = 0,
831 DATE_RELATIVE,
832 DATE_SHORT,
833 DATE_LOCAL,
834 DATE_ISO8601,
835 DATE_RFC2822,
836 DATE_RAW
839 const char *show_date(unsigned long time, int timezone, enum date_mode mode);
840 const char *show_date_relative(unsigned long time, int tz,
841 const struct timeval *now,
842 char *timebuf,
843 size_t timebuf_size);
844 int parse_date(const char *date, char *buf, int bufsize);
845 int parse_date_basic(const char *date, unsigned long *timestamp, int *offset);
846 void datestamp(char *buf, int bufsize);
847 #define approxidate(s) approxidate_careful((s), NULL)
848 unsigned long approxidate_careful(const char *, int *);
849 unsigned long approxidate_relative(const char *date, const struct timeval *now);
850 enum date_mode parse_date_format(const char *format);
852 #define IDENT_WARN_ON_NO_NAME 1
853 #define IDENT_ERROR_ON_NO_NAME 2
854 #define IDENT_NO_DATE 4
855 extern const char *git_author_info(int);
856 extern const char *git_committer_info(int);
857 extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int);
858 extern const char *fmt_name(const char *name, const char *email);
859 extern const char *git_editor(void);
860 extern const char *git_pager(int stdout_is_tty);
862 struct checkout {
863 const char *base_dir;
864 int base_dir_len;
865 unsigned force:1,
866 quiet:1,
867 not_new:1,
868 refresh_cache:1;
871 extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath);
873 struct cache_def {
874 char path[PATH_MAX + 1];
875 int len;
876 int flags;
877 int track_flags;
878 int prefix_len_stat_func;
881 extern int has_symlink_leading_path(const char *name, int len);
882 extern int threaded_has_symlink_leading_path(struct cache_def *, const char *, int);
883 extern int check_leading_path(const char *name, int len);
884 extern int has_dirs_only_path(const char *name, int len, int prefix_len);
885 extern void schedule_dir_for_removal(const char *name, int len);
886 extern void remove_scheduled_dirs(void);
888 extern struct alternate_object_database {
889 struct alternate_object_database *next;
890 char *name;
891 char base[FLEX_ARRAY]; /* more */
892 } *alt_odb_list;
893 extern void prepare_alt_odb(void);
894 extern void add_to_alternates_file(const char *reference);
895 typedef int alt_odb_fn(struct alternate_object_database *, void *);
896 extern void foreach_alt_odb(alt_odb_fn, void*);
898 struct pack_window {
899 struct pack_window *next;
900 unsigned char *base;
901 off_t offset;
902 size_t len;
903 unsigned int last_used;
904 unsigned int inuse_cnt;
907 extern struct packed_git {
908 struct packed_git *next;
909 struct pack_window *windows;
910 off_t pack_size;
911 const void *index_data;
912 size_t index_size;
913 uint32_t num_objects;
914 uint32_t num_bad_objects;
915 unsigned char *bad_object_sha1;
916 int index_version;
917 time_t mtime;
918 int pack_fd;
919 unsigned pack_local:1,
920 pack_keep:1,
921 do_not_close:1;
922 unsigned char sha1[20];
923 /* something like ".git/objects/pack/xxxxx.pack" */
924 char pack_name[FLEX_ARRAY]; /* more */
925 } *packed_git;
927 struct pack_entry {
928 off_t offset;
929 unsigned char sha1[20];
930 struct packed_git *p;
933 struct ref {
934 struct ref *next;
935 unsigned char old_sha1[20];
936 unsigned char new_sha1[20];
937 char *symref;
938 unsigned int force:1,
939 merge:1,
940 nonfastforward:1,
941 deletion:1;
942 enum {
943 REF_STATUS_NONE = 0,
944 REF_STATUS_OK,
945 REF_STATUS_REJECT_NONFASTFORWARD,
946 REF_STATUS_REJECT_NODELETE,
947 REF_STATUS_UPTODATE,
948 REF_STATUS_REMOTE_REJECT,
949 REF_STATUS_EXPECTING_REPORT
950 } status;
951 char *remote_status;
952 struct ref *peer_ref; /* when renaming */
953 char name[FLEX_ARRAY]; /* more */
956 #define REF_NORMAL (1u << 0)
957 #define REF_HEADS (1u << 1)
958 #define REF_TAGS (1u << 2)
960 extern struct ref *find_ref_by_name(const struct ref *list, const char *name);
962 #define CONNECT_VERBOSE (1u << 0)
963 extern char *git_getpass(const char *prompt);
964 extern struct child_process *git_connect(int fd[2], const char *url, const char *prog, int flags);
965 extern int finish_connect(struct child_process *conn);
966 extern int path_match(const char *path, int nr, char **match);
967 struct extra_have_objects {
968 int nr, alloc;
969 unsigned char (*array)[20];
971 extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, unsigned int flags, struct extra_have_objects *);
972 extern int server_supports(const char *feature);
974 extern struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_path);
976 extern void prepare_packed_git(void);
977 extern void reprepare_packed_git(void);
978 extern void install_packed_git(struct packed_git *pack);
980 extern struct packed_git *find_sha1_pack(const unsigned char *sha1,
981 struct packed_git *packs);
983 extern void pack_report(void);
984 extern int open_pack_index(struct packed_git *);
985 extern void close_pack_index(struct packed_git *);
986 extern unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned int *);
987 extern void close_pack_windows(struct packed_git *);
988 extern void unuse_pack(struct pack_window **);
989 extern void free_pack_by_name(const char *);
990 extern void clear_delta_base_cache(void);
991 extern struct packed_git *add_packed_git(const char *, int, int);
992 extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t);
993 extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t);
994 extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *);
995 extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *);
996 extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep);
997 extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t);
998 extern int packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *);
999 extern int unpack_object_header(struct packed_git *, struct pack_window **, off_t *, unsigned long *);
1001 struct object_info {
1002 /* Request */
1003 unsigned long *sizep;
1005 /* Response */
1006 enum {
1007 OI_CACHED,
1008 OI_LOOSE,
1009 OI_PACKED,
1010 OI_DBCACHED
1011 } whence;
1012 union {
1014 * struct {
1015 * ... Nothing to expose in this case
1016 * } cached;
1017 * struct {
1018 * ... Nothing to expose in this case
1019 * } loose;
1021 struct {
1022 struct packed_git *pack;
1023 off_t offset;
1024 unsigned int is_delta;
1025 } packed;
1026 } u;
1028 extern int sha1_object_info_extended(const unsigned char *, struct object_info *);
1030 /* Dumb servers support */
1031 extern int update_server_info(int);
1033 typedef int (*config_fn_t)(const char *, const char *, void *);
1034 extern int git_default_config(const char *, const char *, void *);
1035 extern int git_config_from_file(config_fn_t fn, const char *, void *);
1036 extern void git_config_push_parameter(const char *text);
1037 extern int git_config_parse_parameter(const char *text);
1038 extern int git_config_parse_environment(void);
1039 extern int git_config_from_parameters(config_fn_t fn, void *data);
1040 extern int git_config(config_fn_t fn, void *);
1041 extern int git_config_early(config_fn_t fn, void *, const char *repo_config);
1042 extern int git_parse_ulong(const char *, unsigned long *);
1043 extern int git_config_int(const char *, const char *);
1044 extern unsigned long git_config_ulong(const char *, const char *);
1045 extern int git_config_bool_or_int(const char *, const char *, int *);
1046 extern int git_config_bool(const char *, const char *);
1047 extern int git_config_maybe_bool(const char *, const char *);
1048 extern int git_config_string(const char **, const char *, const char *);
1049 extern int git_config_pathname(const char **, const char *, const char *);
1050 extern int git_config_set(const char *, const char *);
1051 extern int git_config_parse_key(const char *, char **, int *);
1052 extern int git_config_set_multivar(const char *, const char *, const char *, int);
1053 extern int git_config_rename_section(const char *, const char *);
1054 extern const char *git_etc_gitconfig(void);
1055 extern int check_repository_format_version(const char *var, const char *value, void *cb);
1056 extern int git_env_bool(const char *, int);
1057 extern int git_config_system(void);
1058 extern int config_error_nonbool(const char *);
1059 extern const char *get_log_output_encoding(void);
1060 extern const char *get_commit_output_encoding(void);
1062 extern const char *config_exclusive_filename;
1064 #define MAX_GITNAME (1000)
1065 extern char git_default_email[MAX_GITNAME];
1066 extern char git_default_name[MAX_GITNAME];
1067 #define IDENT_NAME_GIVEN 01
1068 #define IDENT_MAIL_GIVEN 02
1069 #define IDENT_ALL_GIVEN (IDENT_NAME_GIVEN|IDENT_MAIL_GIVEN)
1070 extern int user_ident_explicitly_given;
1071 extern int user_ident_sufficiently_given(void);
1073 extern const char *git_commit_encoding;
1074 extern const char *git_log_output_encoding;
1075 extern const char *git_mailmap_file;
1077 /* IO helper functions */
1078 extern void maybe_flush_or_die(FILE *, const char *);
1079 extern int copy_fd(int ifd, int ofd);
1080 extern int copy_file(const char *dst, const char *src, int mode);
1081 extern int copy_file_with_time(const char *dst, const char *src, int mode);
1082 extern void write_or_die(int fd, const void *buf, size_t count);
1083 extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg);
1084 extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg);
1085 extern void fsync_or_die(int fd, const char *);
1087 extern ssize_t read_in_full(int fd, void *buf, size_t count);
1088 extern ssize_t write_in_full(int fd, const void *buf, size_t count);
1089 static inline ssize_t write_str_in_full(int fd, const char *str)
1091 return write_in_full(fd, str, strlen(str));
1094 /* pager.c */
1095 extern void setup_pager(void);
1096 extern const char *pager_program;
1097 extern int pager_in_use(void);
1098 extern int pager_use_color;
1100 extern const char *editor_program;
1101 extern const char *askpass_program;
1102 extern const char *excludes_file;
1104 /* base85 */
1105 int decode_85(char *dst, const char *line, int linelen);
1106 void encode_85(char *buf, const unsigned char *data, int bytes);
1108 /* alloc.c */
1109 extern void *alloc_blob_node(void);
1110 extern void *alloc_tree_node(void);
1111 extern void *alloc_commit_node(void);
1112 extern void *alloc_tag_node(void);
1113 extern void *alloc_object_node(void);
1114 extern void alloc_report(void);
1116 /* trace.c */
1117 __attribute__((format (printf, 1, 2)))
1118 extern void trace_printf(const char *format, ...);
1119 extern void trace_vprintf(const char *key, const char *format, va_list ap);
1120 __attribute__((format (printf, 2, 3)))
1121 extern void trace_argv_printf(const char **argv, const char *format, ...);
1122 extern void trace_repo_setup(const char *prefix);
1123 extern int trace_want(const char *key);
1124 extern void trace_strbuf(const char *key, const struct strbuf *buf);
1126 void packet_trace_identity(const char *prog);
1128 /* add */
1130 * return 0 if success, 1 - if addition of a file failed and
1131 * ADD_FILES_IGNORE_ERRORS was specified in flags
1133 int add_files_to_cache(const char *prefix, const char **pathspec, int flags);
1135 /* diff.c */
1136 extern int diff_auto_refresh_index;
1138 /* match-trees.c */
1139 void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
1140 void shift_tree_by(const unsigned char *, const unsigned char *, unsigned char *, const char *);
1143 * whitespace rules.
1144 * used by both diff and apply
1145 * last two digits are tab width
1147 #define WS_BLANK_AT_EOL 0100
1148 #define WS_SPACE_BEFORE_TAB 0200
1149 #define WS_INDENT_WITH_NON_TAB 0400
1150 #define WS_CR_AT_EOL 01000
1151 #define WS_BLANK_AT_EOF 02000
1152 #define WS_TAB_IN_INDENT 04000
1153 #define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF)
1154 #define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|8)
1155 #define WS_TAB_WIDTH_MASK 077
1156 extern unsigned whitespace_rule_cfg;
1157 extern unsigned whitespace_rule(const char *);
1158 extern unsigned parse_whitespace_rule(const char *);
1159 extern unsigned ws_check(const char *line, int len, unsigned ws_rule);
1160 extern void ws_check_emit(const char *line, int len, unsigned ws_rule, FILE *stream, const char *set, const char *reset, const char *ws);
1161 extern char *whitespace_error_string(unsigned ws);
1162 extern void ws_fix_copy(struct strbuf *, const char *, int, unsigned, int *);
1163 extern int ws_blank_line(const char *line, int len, unsigned ws_rule);
1164 #define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK)
1166 /* ls-files */
1167 int report_path_error(const char *ps_matched, const char **pathspec, int prefix_offset);
1168 void overlay_tree_on_cache(const char *tree_name, const char *prefix);
1170 char *alias_lookup(const char *alias);
1171 int split_cmdline(char *cmdline, const char ***argv);
1172 /* Takes a negative value returned by split_cmdline */
1173 const char *split_cmdline_strerror(int cmdline_errno);
1175 /* git.c */
1176 struct startup_info {
1177 int have_repository;
1178 const char *prefix;
1180 extern struct startup_info *startup_info;
1182 /* builtin/merge.c */
1183 int checkout_fast_forward(const unsigned char *from, const unsigned char *to);
1185 #endif /* CACHE_H */