imap-send: support subjectAltName as well
[git/jnareb-git.git] / cache.h
blob6b24c252ef5c8d56b06cf0f00934fc79e46f022c
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"
10 #include SHA1_HEADER
11 #ifndef git_SHA_CTX
12 #define git_SHA_CTX SHA_CTX
13 #define git_SHA1_Init SHA1_Init
14 #define git_SHA1_Update SHA1_Update
15 #define git_SHA1_Final SHA1_Final
16 #endif
18 #include <zlib.h>
19 typedef struct git_zstream {
20 z_stream z;
21 unsigned long avail_in;
22 unsigned long avail_out;
23 unsigned long total_in;
24 unsigned long total_out;
25 unsigned char *next_in;
26 unsigned char *next_out;
27 } git_zstream;
29 void git_inflate_init(git_zstream *);
30 void git_inflate_init_gzip_only(git_zstream *);
31 void git_inflate_end(git_zstream *);
32 int git_inflate(git_zstream *, int flush);
34 void git_deflate_init(git_zstream *, int level);
35 void git_deflate_init_gzip(git_zstream *, int level);
36 void git_deflate_end(git_zstream *);
37 int git_deflate_end_gently(git_zstream *);
38 int git_deflate(git_zstream *, int flush);
39 unsigned long git_deflate_bound(git_zstream *, unsigned long);
41 #if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT)
42 #define DTYPE(de) ((de)->d_type)
43 #else
44 #undef DT_UNKNOWN
45 #undef DT_DIR
46 #undef DT_REG
47 #undef DT_LNK
48 #define DT_UNKNOWN 0
49 #define DT_DIR 1
50 #define DT_REG 2
51 #define DT_LNK 3
52 #define DTYPE(de) DT_UNKNOWN
53 #endif
55 /* unknown mode (impossible combination S_IFIFO|S_IFCHR) */
56 #define S_IFINVALID 0030000
59 * A "directory link" is a link to another git directory.
61 * The value 0160000 is not normally a valid mode, and
62 * also just happens to be S_IFDIR + S_IFLNK
64 * NOTE! We *really* shouldn't depend on the S_IFxxx macros
65 * always having the same values everywhere. We should use
66 * our internal git values for these things, and then we can
67 * translate that to the OS-specific value. It just so
68 * happens that everybody shares the same bit representation
69 * in the UNIX world (and apparently wider too..)
71 #define S_IFGITLINK 0160000
72 #define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK)
75 * Intensive research over the course of many years has shown that
76 * port 9418 is totally unused by anything else. Or
78 * Your search - "port 9418" - did not match any documents.
80 * as www.google.com puts it.
82 * This port has been properly assigned for git use by IANA:
83 * git (Assigned-9418) [I06-050728-0001].
85 * git 9418/tcp git pack transfer service
86 * git 9418/udp git pack transfer service
88 * with Linus Torvalds <torvalds@osdl.org> as the point of
89 * contact. September 2005.
91 * See http://www.iana.org/assignments/port-numbers
93 #define DEFAULT_GIT_PORT 9418
96 * Basic data structures for the directory cache
99 #define CACHE_SIGNATURE 0x44495243 /* "DIRC" */
100 struct cache_header {
101 unsigned int hdr_signature;
102 unsigned int hdr_version;
103 unsigned int hdr_entries;
107 * The "cache_time" is just the low 32 bits of the
108 * time. It doesn't matter if it overflows - we only
109 * check it for equality in the 32 bits we save.
111 struct cache_time {
112 unsigned int sec;
113 unsigned int nsec;
117 * dev/ino/uid/gid/size are also just tracked to the low 32 bits
118 * Again - this is just a (very strong in practice) heuristic that
119 * the inode hasn't changed.
121 * We save the fields in big-endian order to allow using the
122 * index file over NFS transparently.
124 struct ondisk_cache_entry {
125 struct cache_time ctime;
126 struct cache_time mtime;
127 unsigned int dev;
128 unsigned int ino;
129 unsigned int mode;
130 unsigned int uid;
131 unsigned int gid;
132 unsigned int size;
133 unsigned char sha1[20];
134 unsigned short flags;
135 char name[FLEX_ARRAY]; /* more */
139 * This struct is used when CE_EXTENDED bit is 1
140 * The struct must match ondisk_cache_entry exactly from
141 * ctime till flags
143 struct ondisk_cache_entry_extended {
144 struct cache_time ctime;
145 struct cache_time mtime;
146 unsigned int dev;
147 unsigned int ino;
148 unsigned int mode;
149 unsigned int uid;
150 unsigned int gid;
151 unsigned int size;
152 unsigned char sha1[20];
153 unsigned short flags;
154 unsigned short flags2;
155 char name[FLEX_ARRAY]; /* more */
158 struct cache_entry {
159 struct cache_time ce_ctime;
160 struct cache_time ce_mtime;
161 unsigned int ce_dev;
162 unsigned int ce_ino;
163 unsigned int ce_mode;
164 unsigned int ce_uid;
165 unsigned int ce_gid;
166 unsigned int ce_size;
167 unsigned int ce_flags;
168 unsigned char sha1[20];
169 struct cache_entry *next;
170 char name[FLEX_ARRAY]; /* more */
173 #define CE_NAMEMASK (0x0fff)
174 #define CE_STAGEMASK (0x3000)
175 #define CE_EXTENDED (0x4000)
176 #define CE_VALID (0x8000)
177 #define CE_STAGESHIFT 12
180 * Range 0xFFFF0000 in ce_flags is divided into
181 * two parts: in-memory flags and on-disk ones.
182 * Flags in CE_EXTENDED_FLAGS will get saved on-disk
183 * if you want to save a new flag, add it in
184 * CE_EXTENDED_FLAGS
186 * In-memory only flags
188 #define CE_UPDATE (1 << 16)
189 #define CE_REMOVE (1 << 17)
190 #define CE_UPTODATE (1 << 18)
191 #define CE_ADDED (1 << 19)
193 #define CE_HASHED (1 << 20)
194 #define CE_UNHASHED (1 << 21)
195 #define CE_WT_REMOVE (1 << 22) /* remove in work directory */
196 #define CE_CONFLICTED (1 << 23)
198 #define CE_UNPACKED (1 << 24)
199 #define CE_NEW_SKIP_WORKTREE (1 << 25)
202 * Extended on-disk flags
204 #define CE_INTENT_TO_ADD (1 << 29)
205 #define CE_SKIP_WORKTREE (1 << 30)
206 /* CE_EXTENDED2 is for future extension */
207 #define CE_EXTENDED2 (1 << 31)
209 #define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD | CE_SKIP_WORKTREE)
212 * Safeguard to avoid saving wrong flags:
213 * - CE_EXTENDED2 won't get saved until its semantic is known
214 * - Bits in 0x0000FFFF have been saved in ce_flags already
215 * - Bits in 0x003F0000 are currently in-memory flags
217 #if CE_EXTENDED_FLAGS & 0x803FFFFF
218 #error "CE_EXTENDED_FLAGS out of range"
219 #endif
222 * Copy the sha1 and stat state of a cache entry from one to
223 * another. But we never change the name, or the hash state!
225 #define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)
226 static inline void copy_cache_entry(struct cache_entry *dst, struct cache_entry *src)
228 unsigned int state = dst->ce_flags & CE_STATE_MASK;
230 /* Don't copy hash chain and name */
231 memcpy(dst, src, offsetof(struct cache_entry, next));
233 /* Restore the hash state */
234 dst->ce_flags = (dst->ce_flags & ~CE_STATE_MASK) | state;
237 static inline unsigned create_ce_flags(size_t len, unsigned stage)
239 if (len >= CE_NAMEMASK)
240 len = CE_NAMEMASK;
241 return (len | (stage << CE_STAGESHIFT));
244 static inline size_t ce_namelen(const struct cache_entry *ce)
246 size_t len = ce->ce_flags & CE_NAMEMASK;
247 if (len < CE_NAMEMASK)
248 return len;
249 return strlen(ce->name + CE_NAMEMASK) + CE_NAMEMASK;
252 #define ce_size(ce) cache_entry_size(ce_namelen(ce))
253 #define ondisk_ce_size(ce) (((ce)->ce_flags & CE_EXTENDED) ? \
254 ondisk_cache_entry_extended_size(ce_namelen(ce)) : \
255 ondisk_cache_entry_size(ce_namelen(ce)))
256 #define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT)
257 #define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE)
258 #define ce_skip_worktree(ce) ((ce)->ce_flags & CE_SKIP_WORKTREE)
259 #define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE)
261 #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644)
262 static inline unsigned int create_ce_mode(unsigned int mode)
264 if (S_ISLNK(mode))
265 return S_IFLNK;
266 if (S_ISDIR(mode) || S_ISGITLINK(mode))
267 return S_IFGITLINK;
268 return S_IFREG | ce_permissions(mode);
270 static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned int mode)
272 extern int trust_executable_bit, has_symlinks;
273 if (!has_symlinks && S_ISREG(mode) &&
274 ce && S_ISLNK(ce->ce_mode))
275 return ce->ce_mode;
276 if (!trust_executable_bit && S_ISREG(mode)) {
277 if (ce && S_ISREG(ce->ce_mode))
278 return ce->ce_mode;
279 return create_ce_mode(0666);
281 return create_ce_mode(mode);
283 static inline int ce_to_dtype(const struct cache_entry *ce)
285 unsigned ce_mode = ntohl(ce->ce_mode);
286 if (S_ISREG(ce_mode))
287 return DT_REG;
288 else if (S_ISDIR(ce_mode) || S_ISGITLINK(ce_mode))
289 return DT_DIR;
290 else if (S_ISLNK(ce_mode))
291 return DT_LNK;
292 else
293 return DT_UNKNOWN;
295 static inline unsigned int canon_mode(unsigned int mode)
297 if (S_ISREG(mode))
298 return S_IFREG | ce_permissions(mode);
299 if (S_ISLNK(mode))
300 return S_IFLNK;
301 if (S_ISDIR(mode))
302 return S_IFDIR;
303 return S_IFGITLINK;
306 #define flexible_size(STRUCT,len) ((offsetof(struct STRUCT,name) + (len) + 8) & ~7)
307 #define cache_entry_size(len) flexible_size(cache_entry,len)
308 #define ondisk_cache_entry_size(len) flexible_size(ondisk_cache_entry,len)
309 #define ondisk_cache_entry_extended_size(len) flexible_size(ondisk_cache_entry_extended,len)
311 struct index_state {
312 struct cache_entry **cache;
313 unsigned int cache_nr, cache_alloc, cache_changed;
314 struct string_list *resolve_undo;
315 struct cache_tree *cache_tree;
316 struct cache_time timestamp;
317 void *alloc;
318 unsigned name_hash_initialized : 1,
319 initialized : 1;
320 struct hash_table name_hash;
323 extern struct index_state the_index;
325 /* Name hashing */
326 extern void add_name_hash(struct index_state *istate, struct cache_entry *ce);
328 * We don't actually *remove* it, we can just mark it invalid so that
329 * we won't find it in lookups.
331 * Not only would we have to search the lists (simple enough), but
332 * we'd also have to rehash other hash buckets in case this makes the
333 * hash bucket empty (common). So it's much better to just mark
334 * it.
336 static inline void remove_name_hash(struct cache_entry *ce)
338 ce->ce_flags |= CE_UNHASHED;
342 #ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
343 #define active_cache (the_index.cache)
344 #define active_nr (the_index.cache_nr)
345 #define active_alloc (the_index.cache_alloc)
346 #define active_cache_changed (the_index.cache_changed)
347 #define active_cache_tree (the_index.cache_tree)
349 #define read_cache() read_index(&the_index)
350 #define read_cache_from(path) read_index_from(&the_index, (path))
351 #define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec))
352 #define is_cache_unborn() is_index_unborn(&the_index)
353 #define read_cache_unmerged() read_index_unmerged(&the_index)
354 #define write_cache(newfd, cache, entries) write_index(&the_index, (newfd))
355 #define discard_cache() discard_index(&the_index)
356 #define unmerged_cache() unmerged_index(&the_index)
357 #define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen))
358 #define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option))
359 #define rename_cache_entry_at(pos, new_name) rename_index_entry_at(&the_index, (pos), (new_name))
360 #define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos))
361 #define remove_file_from_cache(path) remove_file_from_index(&the_index, (path))
362 #define add_to_cache(path, st, flags) add_to_index(&the_index, (path), (st), (flags))
363 #define add_file_to_cache(path, flags) add_file_to_index(&the_index, (path), (flags))
364 #define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL)
365 #define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options))
366 #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
367 #define cache_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase))
368 #define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen))
369 #define resolve_undo_clear() resolve_undo_clear_index(&the_index)
370 #define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at)
371 #define unmerge_cache(pathspec) unmerge_index(&the_index, pathspec)
372 #endif
374 enum object_type {
375 OBJ_BAD = -1,
376 OBJ_NONE = 0,
377 OBJ_COMMIT = 1,
378 OBJ_TREE = 2,
379 OBJ_BLOB = 3,
380 OBJ_TAG = 4,
381 /* 5 for future expansion */
382 OBJ_OFS_DELTA = 6,
383 OBJ_REF_DELTA = 7,
384 OBJ_ANY,
385 OBJ_MAX
388 static inline enum object_type object_type(unsigned int mode)
390 return S_ISDIR(mode) ? OBJ_TREE :
391 S_ISGITLINK(mode) ? OBJ_COMMIT :
392 OBJ_BLOB;
395 #define GIT_DIR_ENVIRONMENT "GIT_DIR"
396 #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
397 #define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
398 #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
399 #define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
400 #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
401 #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR"
402 #define CONFIG_ENVIRONMENT "GIT_CONFIG"
403 #define CONFIG_DATA_ENVIRONMENT "GIT_CONFIG_PARAMETERS"
404 #define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH"
405 #define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES"
406 #define NO_REPLACE_OBJECTS_ENVIRONMENT "GIT_NO_REPLACE_OBJECTS"
407 #define GITATTRIBUTES_FILE ".gitattributes"
408 #define INFOATTRIBUTES_FILE "info/attributes"
409 #define ATTRIBUTE_MACRO_PREFIX "[attr]"
410 #define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF"
411 #define GIT_NOTES_DEFAULT_REF "refs/notes/commits"
412 #define GIT_NOTES_DISPLAY_REF_ENVIRONMENT "GIT_NOTES_DISPLAY_REF"
413 #define GIT_NOTES_REWRITE_REF_ENVIRONMENT "GIT_NOTES_REWRITE_REF"
414 #define GIT_NOTES_REWRITE_MODE_ENVIRONMENT "GIT_NOTES_REWRITE_MODE"
417 * Repository-local GIT_* environment variables
418 * The array is NULL-terminated to simplify its usage in contexts such
419 * environment creation or simple walk of the list.
420 * The number of non-NULL entries is available as a macro.
422 #define LOCAL_REPO_ENV_SIZE 9
423 extern const char *const local_repo_env[LOCAL_REPO_ENV_SIZE + 1];
425 extern int is_bare_repository_cfg;
426 extern int is_bare_repository(void);
427 extern int is_inside_git_dir(void);
428 extern char *git_work_tree_cfg;
429 extern int is_inside_work_tree(void);
430 extern int have_git_dir(void);
431 extern const char *get_git_dir(void);
432 extern char *get_object_directory(void);
433 extern char *get_index_file(void);
434 extern char *get_graft_file(void);
435 extern int set_git_dir(const char *path);
436 extern const char *get_git_work_tree(void);
437 extern const char *read_gitfile(const char *path);
438 extern void set_git_work_tree(const char *tree);
440 #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
442 extern const char **get_pathspec(const char *prefix, const char **pathspec);
443 extern void setup_work_tree(void);
444 extern const char *setup_git_directory_gently(int *);
445 extern const char *setup_git_directory(void);
446 extern char *prefix_path(const char *prefix, int len, const char *path);
447 extern const char *prefix_filename(const char *prefix, int len, const char *path);
448 extern int check_filename(const char *prefix, const char *name);
449 extern void verify_filename(const char *prefix, const char *name);
450 extern void verify_non_filename(const char *prefix, const char *name);
452 #define INIT_DB_QUIET 0x0001
454 extern int set_git_dir_init(const char *git_dir, const char *real_git_dir, int);
455 extern int init_db(const char *template_dir, unsigned int flags);
457 #define alloc_nr(x) (((x)+16)*3/2)
460 * Realloc the buffer pointed at by variable 'x' so that it can hold
461 * at least 'nr' entries; the number of entries currently allocated
462 * is 'alloc', using the standard growing factor alloc_nr() macro.
464 * DO NOT USE any expression with side-effect for 'x', 'nr', or 'alloc'.
466 #define ALLOC_GROW(x, nr, alloc) \
467 do { \
468 if ((nr) > alloc) { \
469 if (alloc_nr(alloc) < (nr)) \
470 alloc = (nr); \
471 else \
472 alloc = alloc_nr(alloc); \
473 x = xrealloc((x), alloc * sizeof(*(x))); \
475 } while (0)
477 /* Initialize and use the cache information */
478 extern int read_index(struct index_state *);
479 extern int read_index_preload(struct index_state *, const char **pathspec);
480 extern int read_index_from(struct index_state *, const char *path);
481 extern int is_index_unborn(struct index_state *);
482 extern int read_index_unmerged(struct index_state *);
483 extern int write_index(struct index_state *, int newfd);
484 extern int discard_index(struct index_state *);
485 extern int unmerged_index(const struct index_state *);
486 extern int verify_path(const char *path);
487 extern struct cache_entry *index_name_exists(struct index_state *istate, const char *name, int namelen, int igncase);
488 extern int index_name_pos(const struct index_state *, const char *name, int namelen);
489 #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
490 #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
491 #define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
492 #define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
493 #define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */
494 extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option);
495 extern void rename_index_entry_at(struct index_state *, int pos, const char *new_name);
496 extern int remove_index_entry_at(struct index_state *, int pos);
497 extern void remove_marked_cache_entries(struct index_state *istate);
498 extern int remove_file_from_index(struct index_state *, const char *path);
499 #define ADD_CACHE_VERBOSE 1
500 #define ADD_CACHE_PRETEND 2
501 #define ADD_CACHE_IGNORE_ERRORS 4
502 #define ADD_CACHE_IGNORE_REMOVAL 8
503 #define ADD_CACHE_INTENT 16
504 extern int add_to_index(struct index_state *, const char *path, struct stat *, int flags);
505 extern int add_file_to_index(struct index_state *, const char *path, int flags);
506 extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, int refresh);
507 extern int ce_same_name(struct cache_entry *a, struct cache_entry *b);
508 extern int index_name_is_other(const struct index_state *, const char *, int);
510 /* do stat comparison even if CE_VALID is true */
511 #define CE_MATCH_IGNORE_VALID 01
512 /* do not check the contents but report dirty on racily-clean entries */
513 #define CE_MATCH_RACY_IS_DIRTY 02
514 /* do stat comparison even if CE_SKIP_WORKTREE is true */
515 #define CE_MATCH_IGNORE_SKIP_WORKTREE 04
516 extern int ie_match_stat(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
517 extern int ie_modified(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
519 struct pathspec {
520 const char **raw; /* get_pathspec() result, not freed by free_pathspec() */
521 int nr;
522 unsigned int has_wildcard:1;
523 unsigned int recursive:1;
524 int max_depth;
525 struct pathspec_item {
526 const char *match;
527 int len;
528 unsigned int use_wildcard:1;
529 } *items;
532 extern int init_pathspec(struct pathspec *, const char **);
533 extern void free_pathspec(struct pathspec *);
534 extern int ce_path_match(const struct cache_entry *ce, const struct pathspec *pathspec);
536 #define HASH_WRITE_OBJECT 1
537 #define HASH_FORMAT_CHECK 2
538 extern int index_fd(unsigned char *sha1, int fd, struct stat *st, enum object_type type, const char *path, unsigned flags);
539 extern int index_path(unsigned char *sha1, const char *path, struct stat *st, unsigned flags);
540 extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
542 #define REFRESH_REALLY 0x0001 /* ignore_valid */
543 #define REFRESH_UNMERGED 0x0002 /* allow unmerged */
544 #define REFRESH_QUIET 0x0004 /* be quiet about it */
545 #define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */
546 #define REFRESH_IGNORE_SUBMODULES 0x0010 /* ignore submodules */
547 #define REFRESH_IN_PORCELAIN 0x0020 /* user friendly output, not "needs update" */
548 extern int refresh_index(struct index_state *, unsigned int flags, const char **pathspec, char *seen, const char *header_msg);
550 struct lock_file {
551 struct lock_file *next;
552 int fd;
553 pid_t owner;
554 char on_list;
555 char filename[PATH_MAX];
557 #define LOCK_DIE_ON_ERROR 1
558 #define LOCK_NODEREF 2
559 extern int unable_to_lock_error(const char *path, int err);
560 extern NORETURN void unable_to_lock_index_die(const char *path, int err);
561 extern int hold_lock_file_for_update(struct lock_file *, const char *path, int);
562 extern int hold_lock_file_for_append(struct lock_file *, const char *path, int);
563 extern int commit_lock_file(struct lock_file *);
564 extern void update_index_if_able(struct index_state *, struct lock_file *);
566 extern int hold_locked_index(struct lock_file *, int);
567 extern int commit_locked_index(struct lock_file *);
568 extern void set_alternate_index_output(const char *);
569 extern int close_lock_file(struct lock_file *);
570 extern void rollback_lock_file(struct lock_file *);
571 extern int delete_ref(const char *, const unsigned char *sha1, int delopt);
573 /* Environment bits from configuration mechanism */
574 extern int trust_executable_bit;
575 extern int trust_ctime;
576 extern int quote_path_fully;
577 extern int has_symlinks;
578 extern int minimum_abbrev, default_abbrev;
579 extern int ignore_case;
580 extern int assume_unchanged;
581 extern int prefer_symlink_refs;
582 extern int log_all_ref_updates;
583 extern int warn_ambiguous_refs;
584 extern int shared_repository;
585 extern const char *apply_default_whitespace;
586 extern const char *apply_default_ignorewhitespace;
587 extern int zlib_compression_level;
588 extern int core_compression_level;
589 extern int core_compression_seen;
590 extern size_t packed_git_window_size;
591 extern size_t packed_git_limit;
592 extern size_t delta_base_cache_limit;
593 extern unsigned long big_file_threshold;
594 extern int read_replace_refs;
595 extern int fsync_object_files;
596 extern int core_preload_index;
597 extern int core_apply_sparse_checkout;
599 enum safe_crlf {
600 SAFE_CRLF_FALSE = 0,
601 SAFE_CRLF_FAIL = 1,
602 SAFE_CRLF_WARN = 2
605 extern enum safe_crlf safe_crlf;
607 enum auto_crlf {
608 AUTO_CRLF_FALSE = 0,
609 AUTO_CRLF_TRUE = 1,
610 AUTO_CRLF_INPUT = -1
613 extern enum auto_crlf auto_crlf;
615 enum eol {
616 EOL_UNSET,
617 EOL_CRLF,
618 EOL_LF,
619 #ifdef NATIVE_CRLF
620 EOL_NATIVE = EOL_CRLF
621 #else
622 EOL_NATIVE = EOL_LF
623 #endif
626 extern enum eol core_eol;
628 enum branch_track {
629 BRANCH_TRACK_UNSPECIFIED = -1,
630 BRANCH_TRACK_NEVER = 0,
631 BRANCH_TRACK_REMOTE,
632 BRANCH_TRACK_ALWAYS,
633 BRANCH_TRACK_EXPLICIT,
634 BRANCH_TRACK_OVERRIDE
637 enum rebase_setup_type {
638 AUTOREBASE_NEVER = 0,
639 AUTOREBASE_LOCAL,
640 AUTOREBASE_REMOTE,
641 AUTOREBASE_ALWAYS
644 enum push_default_type {
645 PUSH_DEFAULT_NOTHING = 0,
646 PUSH_DEFAULT_MATCHING,
647 PUSH_DEFAULT_UPSTREAM,
648 PUSH_DEFAULT_CURRENT
651 extern enum branch_track git_branch_track;
652 extern enum rebase_setup_type autorebase;
653 extern enum push_default_type push_default;
655 enum object_creation_mode {
656 OBJECT_CREATION_USES_HARDLINKS = 0,
657 OBJECT_CREATION_USES_RENAMES = 1
660 extern enum object_creation_mode object_creation_mode;
662 extern char *notes_ref_name;
664 extern int grafts_replace_parents;
666 #define GIT_REPO_VERSION 0
667 extern int repository_format_version;
668 extern int check_repository_format(void);
670 #define MTIME_CHANGED 0x0001
671 #define CTIME_CHANGED 0x0002
672 #define OWNER_CHANGED 0x0004
673 #define MODE_CHANGED 0x0008
674 #define INODE_CHANGED 0x0010
675 #define DATA_CHANGED 0x0020
676 #define TYPE_CHANGED 0x0040
678 extern char *mksnpath(char *buf, size_t n, const char *fmt, ...)
679 __attribute__((format (printf, 3, 4)));
680 extern char *git_snpath(char *buf, size_t n, const char *fmt, ...)
681 __attribute__((format (printf, 3, 4)));
682 extern char *git_pathdup(const char *fmt, ...)
683 __attribute__((format (printf, 1, 2)));
685 /* Return a statically allocated filename matching the sha1 signature */
686 extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
687 extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
688 extern char *git_path_submodule(const char *path, const char *fmt, ...)
689 __attribute__((format (printf, 2, 3)));
691 extern char *sha1_file_name(const unsigned char *sha1);
692 extern char *sha1_pack_name(const unsigned char *sha1);
693 extern char *sha1_pack_index_name(const unsigned char *sha1);
694 extern const char *find_unique_abbrev(const unsigned char *sha1, int);
695 extern const unsigned char null_sha1[20];
697 static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
699 int i;
701 for (i = 0; i < 20; i++, sha1++, sha2++) {
702 if (*sha1 != *sha2)
703 return *sha1 - *sha2;
706 return 0;
709 static inline int is_null_sha1(const unsigned char *sha1)
711 return !hashcmp(sha1, null_sha1);
714 static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
716 memcpy(sha_dst, sha_src, 20);
718 static inline void hashclr(unsigned char *hash)
720 memset(hash, 0, 20);
723 #define EMPTY_TREE_SHA1_HEX \
724 "4b825dc642cb6eb9a060e54bf8d69288fbee4904"
725 #define EMPTY_TREE_SHA1_BIN_LITERAL \
726 "\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" \
727 "\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04"
728 #define EMPTY_TREE_SHA1_BIN \
729 ((const unsigned char *) EMPTY_TREE_SHA1_BIN_LITERAL)
731 int git_mkstemp(char *path, size_t n, const char *template);
733 int git_mkstemps(char *path, size_t n, const char *template, int suffix_len);
735 /* set default permissions by passing mode arguments to open(2) */
736 int git_mkstemps_mode(char *pattern, int suffix_len, int mode);
737 int git_mkstemp_mode(char *pattern, int mode);
740 * NOTE NOTE NOTE!!
742 * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must
743 * not be changed. Old repositories have core.sharedrepository written in
744 * numeric format, and therefore these values are preserved for compatibility
745 * reasons.
747 enum sharedrepo {
748 PERM_UMASK = 0,
749 OLD_PERM_GROUP = 1,
750 OLD_PERM_EVERYBODY = 2,
751 PERM_GROUP = 0660,
752 PERM_EVERYBODY = 0664
754 int git_config_perm(const char *var, const char *value);
755 int set_shared_perm(const char *path, int mode);
756 #define adjust_shared_perm(path) set_shared_perm((path), 0)
757 int safe_create_leading_directories(char *path);
758 int safe_create_leading_directories_const(const char *path);
759 int mkdir_in_gitdir(const char *path);
760 extern char *expand_user_path(const char *path);
761 char *enter_repo(char *path, int strict);
762 static inline int is_absolute_path(const char *path)
764 return path[0] == '/' || has_dos_drive_prefix(path);
766 int is_directory(const char *);
767 const char *real_path(const char *path);
768 const char *absolute_path(const char *path);
769 const char *relative_path(const char *abs, const char *base);
770 int normalize_path_copy(char *dst, const char *src);
771 int longest_ancestor_length(const char *path, const char *prefix_list);
772 char *strip_path_suffix(const char *path, const char *suffix);
773 int daemon_avoid_alias(const char *path);
774 int offset_1st_component(const char *path);
776 /* object replacement */
777 #define READ_SHA1_FILE_REPLACE 1
778 extern void *read_sha1_file_extended(const unsigned char *sha1, enum object_type *type, unsigned long *size, unsigned flag);
779 static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
781 return read_sha1_file_extended(sha1, type, size, READ_SHA1_FILE_REPLACE);
783 extern const unsigned char *do_lookup_replace_object(const unsigned char *sha1);
784 static inline const unsigned char *lookup_replace_object(const unsigned char *sha1)
786 if (!read_replace_refs)
787 return sha1;
788 return do_lookup_replace_object(sha1);
791 /* Read and unpack a sha1 file into memory, write memory to a sha1 file */
792 extern int sha1_object_info(const unsigned char *, unsigned long *);
793 extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1);
794 extern int write_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *return_sha1);
795 extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *);
796 extern int force_object_loose(const unsigned char *sha1, time_t mtime);
798 /* global flag to enable extra checks when accessing packed objects */
799 extern int do_check_packed_object_crc;
801 extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type);
803 extern int move_temp_to_file(const char *tmpfile, const char *filename);
805 extern int has_sha1_pack(const unsigned char *sha1);
806 extern int has_sha1_file(const unsigned char *sha1);
807 extern int has_loose_object_nonlocal(const unsigned char *sha1);
809 extern int has_pack_index(const unsigned char *sha1);
811 extern void assert_sha1_type(const unsigned char *sha1, enum object_type expect);
813 extern const signed char hexval_table[256];
814 static inline unsigned int hexval(unsigned char c)
816 return hexval_table[c];
819 /* Convert to/from hex/sha1 representation */
820 #define MINIMUM_ABBREV minimum_abbrev
821 #define DEFAULT_ABBREV default_abbrev
823 struct object_context {
824 unsigned char tree[20];
825 char path[PATH_MAX];
826 unsigned mode;
829 extern int get_sha1(const char *str, unsigned char *sha1);
830 extern int get_sha1_with_mode_1(const char *str, unsigned char *sha1, unsigned *mode, int only_to_die, const char *prefix);
831 static inline int get_sha1_with_mode(const char *str, unsigned char *sha1, unsigned *mode)
833 return get_sha1_with_mode_1(str, sha1, mode, 0, NULL);
835 extern int get_sha1_with_context_1(const char *name, unsigned char *sha1, struct object_context *orc, int only_to_die, const char *prefix);
836 static inline int get_sha1_with_context(const char *str, unsigned char *sha1, struct object_context *orc)
838 return get_sha1_with_context_1(str, sha1, orc, 0, NULL);
840 extern int get_sha1_hex(const char *hex, unsigned char *sha1);
841 extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
842 extern int read_ref(const char *filename, unsigned char *sha1);
843 extern const char *resolve_ref(const char *path, unsigned char *sha1, int, int *);
844 extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref);
845 extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref);
846 extern int interpret_branch_name(const char *str, struct strbuf *);
847 extern int get_sha1_mb(const char *str, unsigned char *sha1);
849 extern int refname_match(const char *abbrev_name, const char *full_name, const char **rules);
850 extern const char *ref_rev_parse_rules[];
851 extern const char *ref_fetch_rules[];
853 extern int create_symref(const char *ref, const char *refs_heads_master, const char *logmsg);
854 extern int validate_headref(const char *ref);
856 extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
857 extern int df_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
858 extern int cache_name_compare(const char *name1, int len1, const char *name2, int len2);
860 extern void *read_object_with_reference(const unsigned char *sha1,
861 const char *required_type,
862 unsigned long *size,
863 unsigned char *sha1_ret);
865 extern struct object *peel_to_type(const char *name, int namelen,
866 struct object *o, enum object_type);
868 enum date_mode {
869 DATE_NORMAL = 0,
870 DATE_RELATIVE,
871 DATE_SHORT,
872 DATE_LOCAL,
873 DATE_ISO8601,
874 DATE_RFC2822,
875 DATE_RAW
878 const char *show_date(unsigned long time, int timezone, enum date_mode mode);
879 const char *show_date_relative(unsigned long time, int tz,
880 const struct timeval *now,
881 char *timebuf,
882 size_t timebuf_size);
883 int parse_date(const char *date, char *buf, int bufsize);
884 int parse_date_basic(const char *date, unsigned long *timestamp, int *offset);
885 void datestamp(char *buf, int bufsize);
886 #define approxidate(s) approxidate_careful((s), NULL)
887 unsigned long approxidate_careful(const char *, int *);
888 unsigned long approxidate_relative(const char *date, const struct timeval *now);
889 enum date_mode parse_date_format(const char *format);
891 #define IDENT_WARN_ON_NO_NAME 1
892 #define IDENT_ERROR_ON_NO_NAME 2
893 #define IDENT_NO_DATE 4
894 extern const char *git_author_info(int);
895 extern const char *git_committer_info(int);
896 extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int);
897 extern const char *fmt_name(const char *name, const char *email);
898 extern const char *git_editor(void);
899 extern const char *git_pager(int stdout_is_tty);
901 struct checkout {
902 const char *base_dir;
903 int base_dir_len;
904 unsigned force:1,
905 quiet:1,
906 not_new:1,
907 refresh_cache:1;
910 extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath);
912 struct cache_def {
913 char path[PATH_MAX + 1];
914 int len;
915 int flags;
916 int track_flags;
917 int prefix_len_stat_func;
920 extern int has_symlink_leading_path(const char *name, int len);
921 extern int threaded_has_symlink_leading_path(struct cache_def *, const char *, int);
922 extern int check_leading_path(const char *name, int len);
923 extern int has_dirs_only_path(const char *name, int len, int prefix_len);
924 extern void schedule_dir_for_removal(const char *name, int len);
925 extern void remove_scheduled_dirs(void);
927 extern struct alternate_object_database {
928 struct alternate_object_database *next;
929 char *name;
930 char base[FLEX_ARRAY]; /* more */
931 } *alt_odb_list;
932 extern void prepare_alt_odb(void);
933 extern void add_to_alternates_file(const char *reference);
934 typedef int alt_odb_fn(struct alternate_object_database *, void *);
935 extern void foreach_alt_odb(alt_odb_fn, void*);
937 struct pack_window {
938 struct pack_window *next;
939 unsigned char *base;
940 off_t offset;
941 size_t len;
942 unsigned int last_used;
943 unsigned int inuse_cnt;
946 extern struct packed_git {
947 struct packed_git *next;
948 struct pack_window *windows;
949 off_t pack_size;
950 const void *index_data;
951 size_t index_size;
952 uint32_t num_objects;
953 uint32_t num_bad_objects;
954 unsigned char *bad_object_sha1;
955 int index_version;
956 time_t mtime;
957 int pack_fd;
958 unsigned pack_local:1,
959 pack_keep:1,
960 do_not_close:1;
961 unsigned char sha1[20];
962 /* something like ".git/objects/pack/xxxxx.pack" */
963 char pack_name[FLEX_ARRAY]; /* more */
964 } *packed_git;
966 struct pack_entry {
967 off_t offset;
968 unsigned char sha1[20];
969 struct packed_git *p;
972 struct ref {
973 struct ref *next;
974 unsigned char old_sha1[20];
975 unsigned char new_sha1[20];
976 char *symref;
977 unsigned int force:1,
978 merge:1,
979 nonfastforward:1,
980 deletion:1;
981 enum {
982 REF_STATUS_NONE = 0,
983 REF_STATUS_OK,
984 REF_STATUS_REJECT_NONFASTFORWARD,
985 REF_STATUS_REJECT_NODELETE,
986 REF_STATUS_UPTODATE,
987 REF_STATUS_REMOTE_REJECT,
988 REF_STATUS_EXPECTING_REPORT
989 } status;
990 char *remote_status;
991 struct ref *peer_ref; /* when renaming */
992 char name[FLEX_ARRAY]; /* more */
995 #define REF_NORMAL (1u << 0)
996 #define REF_HEADS (1u << 1)
997 #define REF_TAGS (1u << 2)
999 extern struct ref *find_ref_by_name(const struct ref *list, const char *name);
1001 #define CONNECT_VERBOSE (1u << 0)
1002 extern char *git_getpass(const char *prompt);
1003 extern struct child_process *git_connect(int fd[2], const char *url, const char *prog, int flags);
1004 extern int finish_connect(struct child_process *conn);
1005 extern int git_connection_is_socket(struct child_process *conn);
1006 extern int path_match(const char *path, int nr, char **match);
1007 struct extra_have_objects {
1008 int nr, alloc;
1009 unsigned char (*array)[20];
1011 extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, unsigned int flags, struct extra_have_objects *);
1012 extern int server_supports(const char *feature);
1014 extern struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_path);
1016 extern void prepare_packed_git(void);
1017 extern void reprepare_packed_git(void);
1018 extern void install_packed_git(struct packed_git *pack);
1020 extern struct packed_git *find_sha1_pack(const unsigned char *sha1,
1021 struct packed_git *packs);
1023 extern void pack_report(void);
1024 extern int open_pack_index(struct packed_git *);
1025 extern void close_pack_index(struct packed_git *);
1026 extern unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned long *);
1027 extern void close_pack_windows(struct packed_git *);
1028 extern void unuse_pack(struct pack_window **);
1029 extern void free_pack_by_name(const char *);
1030 extern void clear_delta_base_cache(void);
1031 extern struct packed_git *add_packed_git(const char *, int, int);
1032 extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t);
1033 extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t);
1034 extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *);
1035 extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *);
1036 extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep);
1037 extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t);
1038 extern const char *packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *);
1040 /* Dumb servers support */
1041 extern int update_server_info(int);
1043 /* git_config_parse_key() returns these negated: */
1044 #define CONFIG_INVALID_KEY 1
1045 #define CONFIG_NO_SECTION_OR_NAME 2
1046 /* git_config_set(), git_config_set_multivar() return the above or these: */
1047 #define CONFIG_NO_LOCK -1
1048 #define CONFIG_INVALID_FILE 3
1049 #define CONFIG_NO_WRITE 4
1050 #define CONFIG_NOTHING_SET 5
1051 #define CONFIG_INVALID_PATTERN 6
1053 typedef int (*config_fn_t)(const char *, const char *, void *);
1054 extern int git_default_config(const char *, const char *, void *);
1055 extern int git_config_from_file(config_fn_t fn, const char *, void *);
1056 extern void git_config_push_parameter(const char *text);
1057 extern int git_config_from_parameters(config_fn_t fn, void *data);
1058 extern int git_config(config_fn_t fn, void *);
1059 extern int git_config_early(config_fn_t fn, void *, const char *repo_config);
1060 extern int git_parse_ulong(const char *, unsigned long *);
1061 extern int git_config_int(const char *, const char *);
1062 extern unsigned long git_config_ulong(const char *, const char *);
1063 extern int git_config_bool_or_int(const char *, const char *, int *);
1064 extern int git_config_bool(const char *, const char *);
1065 extern int git_config_maybe_bool(const char *, const char *);
1066 extern int git_config_string(const char **, const char *, const char *);
1067 extern int git_config_pathname(const char **, const char *, const char *);
1068 extern int git_config_set(const char *, const char *);
1069 extern int git_config_parse_key(const char *, char **, int *);
1070 extern int git_config_set_multivar(const char *, const char *, const char *, int);
1071 extern int git_config_rename_section(const char *, const char *);
1072 extern const char *git_etc_gitconfig(void);
1073 extern int check_repository_format_version(const char *var, const char *value, void *cb);
1074 extern int git_env_bool(const char *, int);
1075 extern int git_config_system(void);
1076 extern int config_error_nonbool(const char *);
1077 extern const char *get_log_output_encoding(void);
1078 extern const char *get_commit_output_encoding(void);
1080 extern const char *config_exclusive_filename;
1082 #define MAX_GITNAME (1000)
1083 extern char git_default_email[MAX_GITNAME];
1084 extern char git_default_name[MAX_GITNAME];
1085 #define IDENT_NAME_GIVEN 01
1086 #define IDENT_MAIL_GIVEN 02
1087 #define IDENT_ALL_GIVEN (IDENT_NAME_GIVEN|IDENT_MAIL_GIVEN)
1088 extern int user_ident_explicitly_given;
1089 extern int user_ident_sufficiently_given(void);
1091 extern const char *git_commit_encoding;
1092 extern const char *git_log_output_encoding;
1093 extern const char *git_mailmap_file;
1095 /* IO helper functions */
1096 extern void maybe_flush_or_die(FILE *, const char *);
1097 extern int copy_fd(int ifd, int ofd);
1098 extern int copy_file(const char *dst, const char *src, int mode);
1099 extern int copy_file_with_time(const char *dst, const char *src, int mode);
1100 extern void write_or_die(int fd, const void *buf, size_t count);
1101 extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg);
1102 extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg);
1103 extern void fsync_or_die(int fd, const char *);
1105 extern ssize_t read_in_full(int fd, void *buf, size_t count);
1106 extern ssize_t write_in_full(int fd, const void *buf, size_t count);
1107 static inline ssize_t write_str_in_full(int fd, const char *str)
1109 return write_in_full(fd, str, strlen(str));
1112 /* pager.c */
1113 extern void setup_pager(void);
1114 extern const char *pager_program;
1115 extern int pager_in_use(void);
1116 extern int pager_use_color;
1118 extern const char *editor_program;
1119 extern const char *askpass_program;
1120 extern const char *excludes_file;
1122 /* base85 */
1123 int decode_85(char *dst, const char *line, int linelen);
1124 void encode_85(char *buf, const unsigned char *data, int bytes);
1126 /* alloc.c */
1127 extern void *alloc_blob_node(void);
1128 extern void *alloc_tree_node(void);
1129 extern void *alloc_commit_node(void);
1130 extern void *alloc_tag_node(void);
1131 extern void *alloc_object_node(void);
1132 extern void alloc_report(void);
1134 /* trace.c */
1135 __attribute__((format (printf, 1, 2)))
1136 extern void trace_printf(const char *format, ...);
1137 extern void trace_vprintf(const char *key, const char *format, va_list ap);
1138 __attribute__((format (printf, 2, 3)))
1139 extern void trace_argv_printf(const char **argv, const char *format, ...);
1140 extern void trace_repo_setup(const char *prefix);
1141 extern int trace_want(const char *key);
1142 extern void trace_strbuf(const char *key, const struct strbuf *buf);
1144 void packet_trace_identity(const char *prog);
1146 /* convert.c */
1147 /* returns 1 if *dst was used */
1148 extern int convert_to_git(const char *path, const char *src, size_t len,
1149 struct strbuf *dst, enum safe_crlf checksafe);
1150 extern int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst);
1151 extern int renormalize_buffer(const char *path, const char *src, size_t len, struct strbuf *dst);
1153 /* add */
1155 * return 0 if success, 1 - if addition of a file failed and
1156 * ADD_FILES_IGNORE_ERRORS was specified in flags
1158 int add_files_to_cache(const char *prefix, const char **pathspec, int flags);
1160 /* diff.c */
1161 extern int diff_auto_refresh_index;
1163 /* match-trees.c */
1164 void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
1165 void shift_tree_by(const unsigned char *, const unsigned char *, unsigned char *, const char *);
1168 * whitespace rules.
1169 * used by both diff and apply
1170 * last two digits are tab width
1172 #define WS_BLANK_AT_EOL 0100
1173 #define WS_SPACE_BEFORE_TAB 0200
1174 #define WS_INDENT_WITH_NON_TAB 0400
1175 #define WS_CR_AT_EOL 01000
1176 #define WS_BLANK_AT_EOF 02000
1177 #define WS_TAB_IN_INDENT 04000
1178 #define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF)
1179 #define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|8)
1180 #define WS_TAB_WIDTH_MASK 077
1181 extern unsigned whitespace_rule_cfg;
1182 extern unsigned whitespace_rule(const char *);
1183 extern unsigned parse_whitespace_rule(const char *);
1184 extern unsigned ws_check(const char *line, int len, unsigned ws_rule);
1185 extern void ws_check_emit(const char *line, int len, unsigned ws_rule, FILE *stream, const char *set, const char *reset, const char *ws);
1186 extern char *whitespace_error_string(unsigned ws);
1187 extern void ws_fix_copy(struct strbuf *, const char *, int, unsigned, int *);
1188 extern int ws_blank_line(const char *line, int len, unsigned ws_rule);
1189 #define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK)
1191 /* ls-files */
1192 int report_path_error(const char *ps_matched, const char **pathspec, const char *prefix);
1193 void overlay_tree_on_cache(const char *tree_name, const char *prefix);
1195 char *alias_lookup(const char *alias);
1196 int split_cmdline(char *cmdline, const char ***argv);
1197 /* Takes a negative value returned by split_cmdline */
1198 const char *split_cmdline_strerror(int cmdline_errno);
1200 /* git.c */
1201 struct startup_info {
1202 int have_repository;
1203 const char *prefix;
1205 extern struct startup_info *startup_info;
1207 /* builtin/merge.c */
1208 int checkout_fast_forward(const unsigned char *from, const unsigned char *to);
1210 #endif /* CACHE_H */