reset: make the reminder output consistent with "checkout"
[git/git.git] / cache.h
CommitLineData
e83c5163
LT
1#ifndef CACHE_H
2#define CACHE_H
3
4050c0df 4#include "git-compat-util.h"
5ecd293d 5#include "strbuf.h"
cf558704 6#include "hash.h"
e83c5163 7
cef661fc 8#include SHA1_HEADER
9126f009
NP
9#ifndef git_SHA_CTX
10#define git_SHA_CTX SHA_CTX
11#define git_SHA1_Init SHA1_Init
12#define git_SHA1_Update SHA1_Update
13#define git_SHA1_Final SHA1_Final
14#endif
e83c5163 15
9126f009 16#include <zlib.h>
609a2289 17#if defined(NO_DEFLATE_BOUND) || ZLIB_VERNUM < 0x1200
9da3acfb
ET
18#define deflateBound(c,s) ((s) + (((s) + 7) >> 3) + (((s) + 63) >> 6) + 11)
19#endif
20
39c68542
LT
21void git_inflate_init(z_streamp strm);
22void git_inflate_end(z_streamp strm);
23int git_inflate(z_streamp strm, int flush);
24
962554c6 25#if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT)
b6829693
ET
26#define DTYPE(de) ((de)->d_type)
27#else
0bdd79af
JH
28#undef DT_UNKNOWN
29#undef DT_DIR
30#undef DT_REG
31#undef DT_LNK
b6829693
ET
32#define DT_UNKNOWN 0
33#define DT_DIR 1
34#define DT_REG 2
a15c1c60 35#define DT_LNK 3
b6829693
ET
36#define DTYPE(de) DT_UNKNOWN
37#endif
38
40689ae1
MK
39/* unknown mode (impossible combination S_IFIFO|S_IFCHR) */
40#define S_IFINVALID 0030000
41
9eec4795
LT
42/*
43 * A "directory link" is a link to another git directory.
44 *
45 * The value 0160000 is not normally a valid mode, and
46 * also just happens to be S_IFDIR + S_IFLNK
47 *
48 * NOTE! We *really* shouldn't depend on the S_IFxxx macros
49 * always having the same values everywhere. We should use
50 * our internal git values for these things, and then we can
51 * translate that to the OS-specific value. It just so
52 * happens that everybody shares the same bit representation
53 * in the UNIX world (and apparently wider too..)
54 */
302b9282
MW
55#define S_IFGITLINK 0160000
56#define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK)
9eec4795 57
2386d658
LT
58/*
59 * Intensive research over the course of many years has shown that
60 * port 9418 is totally unused by anything else. Or
61 *
62 * Your search - "port 9418" - did not match any documents.
63 *
64 * as www.google.com puts it.
ba8a4970
LT
65 *
66 * This port has been properly assigned for git use by IANA:
67 * git (Assigned-9418) [I06-050728-0001].
68 *
69 * git 9418/tcp git pack transfer service
70 * git 9418/udp git pack transfer service
71 *
72 * with Linus Torvalds <torvalds@osdl.org> as the point of
73 * contact. September 2005.
74 *
75 * See http://www.iana.org/assignments/port-numbers
2386d658
LT
76 */
77#define DEFAULT_GIT_PORT 9418
78
e83c5163
LT
79/*
80 * Basic data structures for the directory cache
e83c5163
LT
81 */
82
83#define CACHE_SIGNATURE 0x44495243 /* "DIRC" */
84struct cache_header {
ccc4feb5
LT
85 unsigned int hdr_signature;
86 unsigned int hdr_version;
87 unsigned int hdr_entries;
e83c5163
LT
88};
89
90/*
91 * The "cache_time" is just the low 32 bits of the
92 * time. It doesn't matter if it overflows - we only
93 * check it for equality in the 32 bits we save.
94 */
95struct cache_time {
96 unsigned int sec;
97 unsigned int nsec;
98};
99
100/*
101 * dev/ino/uid/gid/size are also just tracked to the low 32 bits
102 * Again - this is just a (very strong in practice) heuristic that
103 * the inode hasn't changed.
ccc4feb5
LT
104 *
105 * We save the fields in big-endian order to allow using the
106 * index file over NFS transparently.
e83c5163 107 */
7a51ed66
LT
108struct ondisk_cache_entry {
109 struct cache_time ctime;
110 struct cache_time mtime;
111 unsigned int dev;
112 unsigned int ino;
113 unsigned int mode;
114 unsigned int uid;
115 unsigned int gid;
116 unsigned int size;
117 unsigned char sha1[20];
118 unsigned short flags;
119 char name[FLEX_ARRAY]; /* more */
120};
121
06aaaa0b
NTND
122/*
123 * This struct is used when CE_EXTENDED bit is 1
124 * The struct must match ondisk_cache_entry exactly from
125 * ctime till flags
126 */
127struct ondisk_cache_entry_extended {
128 struct cache_time ctime;
129 struct cache_time mtime;
130 unsigned int dev;
131 unsigned int ino;
132 unsigned int mode;
133 unsigned int uid;
134 unsigned int gid;
135 unsigned int size;
136 unsigned char sha1[20];
137 unsigned short flags;
138 unsigned short flags2;
139 char name[FLEX_ARRAY]; /* more */
140};
141
e83c5163 142struct cache_entry {
fba2f38a
KB
143 struct cache_time ce_ctime;
144 struct cache_time ce_mtime;
ccc4feb5
LT
145 unsigned int ce_dev;
146 unsigned int ce_ino;
147 unsigned int ce_mode;
148 unsigned int ce_uid;
149 unsigned int ce_gid;
150 unsigned int ce_size;
7a51ed66 151 unsigned int ce_flags;
e83c5163 152 unsigned char sha1[20];
eb7a2f1d 153 struct cache_entry *next;
8f1d2e6f 154 char name[FLEX_ARRAY]; /* more */
e83c5163
LT
155};
156
95fd5bf8
LT
157#define CE_NAMEMASK (0x0fff)
158#define CE_STAGEMASK (0x3000)
16ce2e4c 159#define CE_EXTENDED (0x4000)
5f73076c 160#define CE_VALID (0x8000)
aee46198 161#define CE_STAGESHIFT 12
95fd5bf8 162
06aaaa0b
NTND
163/*
164 * Range 0xFFFF0000 in ce_flags is divided into
165 * two parts: in-memory flags and on-disk ones.
166 * Flags in CE_EXTENDED_FLAGS will get saved on-disk
167 * if you want to save a new flag, add it in
168 * CE_EXTENDED_FLAGS
169 *
170 * In-memory only flags
171 */
7a51ed66
LT
172#define CE_UPDATE (0x10000)
173#define CE_REMOVE (0x20000)
eadb5831 174#define CE_UPTODATE (0x40000)
1102952b 175#define CE_ADDED (0x80000)
a22c6371
LT
176
177#define CE_HASHED (0x100000)
178#define CE_UNHASHED (0x200000)
7a51ed66 179
06aaaa0b
NTND
180/*
181 * Extended on-disk flags
182 */
388b2acd 183#define CE_INTENT_TO_ADD 0x20000000
06aaaa0b
NTND
184/* CE_EXTENDED2 is for future extension */
185#define CE_EXTENDED2 0x80000000
186
388b2acd 187#define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD)
06aaaa0b
NTND
188
189/*
190 * Safeguard to avoid saving wrong flags:
191 * - CE_EXTENDED2 won't get saved until its semantic is known
192 * - Bits in 0x0000FFFF have been saved in ce_flags already
193 * - Bits in 0x003F0000 are currently in-memory flags
194 */
195#if CE_EXTENDED_FLAGS & 0x803FFFFF
196#error "CE_EXTENDED_FLAGS out of range"
197#endif
198
eb7a2f1d
LT
199/*
200 * Copy the sha1 and stat state of a cache entry from one to
201 * another. But we never change the name, or the hash state!
202 */
203#define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)
204static inline void copy_cache_entry(struct cache_entry *dst, struct cache_entry *src)
205{
206 unsigned int state = dst->ce_flags & CE_STATE_MASK;
207
208 /* Don't copy hash chain and name */
209 memcpy(dst, src, offsetof(struct cache_entry, next));
210
211 /* Restore the hash state */
212 dst->ce_flags = (dst->ce_flags & ~CE_STATE_MASK) | state;
213}
214
7fec10b7
JH
215static inline unsigned create_ce_flags(size_t len, unsigned stage)
216{
217 if (len >= CE_NAMEMASK)
218 len = CE_NAMEMASK;
219 return (len | (stage << CE_STAGESHIFT));
220}
221
222static inline size_t ce_namelen(const struct cache_entry *ce)
223{
224 size_t len = ce->ce_flags & CE_NAMEMASK;
225 if (len < CE_NAMEMASK)
226 return len;
227 return strlen(ce->name + CE_NAMEMASK) + CE_NAMEMASK;
228}
229
aee46198 230#define ce_size(ce) cache_entry_size(ce_namelen(ce))
06aaaa0b
NTND
231#define ondisk_ce_size(ce) (((ce)->ce_flags & CE_EXTENDED) ? \
232 ondisk_cache_entry_extended_size(ce_namelen(ce)) : \
233 ondisk_cache_entry_size(ce_namelen(ce)))
7a51ed66 234#define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT)
eadb5831
JH
235#define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE)
236#define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE)
aee46198 237
e4479470 238#define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644)
8ae0a8c5
KS
239static inline unsigned int create_ce_mode(unsigned int mode)
240{
8ae0a8c5 241 if (S_ISLNK(mode))
7a51ed66 242 return S_IFLNK;
302b9282 243 if (S_ISDIR(mode) || S_ISGITLINK(mode))
7a51ed66
LT
244 return S_IFGITLINK;
245 return S_IFREG | ce_permissions(mode);
8ae0a8c5 246}
185c975f
JH
247static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned int mode)
248{
78a8d641
JS
249 extern int trust_executable_bit, has_symlinks;
250 if (!has_symlinks && S_ISREG(mode) &&
7a51ed66 251 ce && S_ISLNK(ce->ce_mode))
78a8d641 252 return ce->ce_mode;
185c975f 253 if (!trust_executable_bit && S_ISREG(mode)) {
7a51ed66 254 if (ce && S_ISREG(ce->ce_mode))
185c975f
JH
255 return ce->ce_mode;
256 return create_ce_mode(0666);
257 }
258 return create_ce_mode(mode);
259}
d6b8fc30
JH
260static inline int ce_to_dtype(const struct cache_entry *ce)
261{
262 unsigned ce_mode = ntohl(ce->ce_mode);
263 if (S_ISREG(ce_mode))
264 return DT_REG;
265 else if (S_ISDIR(ce_mode) || S_ISGITLINK(ce_mode))
266 return DT_DIR;
267 else if (S_ISLNK(ce_mode))
268 return DT_LNK;
269 else
270 return DT_UNKNOWN;
271}
1b0c7174
JH
272#define canon_mode(mode) \
273 (S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \
302b9282 274 S_ISLNK(mode) ? S_IFLNK : S_ISDIR(mode) ? S_IFDIR : S_IFGITLINK)
e4479470 275
06aaaa0b
NTND
276#define flexible_size(STRUCT,len) ((offsetof(struct STRUCT,name) + (len) + 8) & ~7)
277#define cache_entry_size(len) flexible_size(cache_entry,len)
278#define ondisk_cache_entry_size(len) flexible_size(ondisk_cache_entry,len)
279#define ondisk_cache_entry_extended_size(len) flexible_size(ondisk_cache_entry_extended,len)
f5cabd13 280
228e94f9
JH
281struct index_state {
282 struct cache_entry **cache;
283 unsigned int cache_nr, cache_alloc, cache_changed;
284 struct cache_tree *cache_tree;
fba2f38a 285 struct cache_time timestamp;
7a51ed66 286 void *alloc;
913e0e99
JH
287 unsigned name_hash_initialized : 1,
288 initialized : 1;
cf558704 289 struct hash_table name_hash;
228e94f9
JH
290};
291
292extern struct index_state the_index;
293
96872bc2
LT
294/* Name hashing */
295extern void add_name_hash(struct index_state *istate, struct cache_entry *ce);
296/*
297 * We don't actually *remove* it, we can just mark it invalid so that
298 * we won't find it in lookups.
299 *
300 * Not only would we have to search the lists (simple enough), but
301 * we'd also have to rehash other hash buckets in case this makes the
302 * hash bucket empty (common). So it's much better to just mark
303 * it.
304 */
305static inline void remove_name_hash(struct cache_entry *ce)
306{
307 ce->ce_flags |= CE_UNHASHED;
308}
309
310
4aab5b46 311#ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
228e94f9
JH
312#define active_cache (the_index.cache)
313#define active_nr (the_index.cache_nr)
314#define active_alloc (the_index.cache_alloc)
315#define active_cache_changed (the_index.cache_changed)
316#define active_cache_tree (the_index.cache_tree)
e83c5163 317
4aab5b46
JH
318#define read_cache() read_index(&the_index)
319#define read_cache_from(path) read_index_from(&the_index, (path))
671c9b7e 320#define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec))
fa7b3c2f 321#define is_cache_unborn() is_index_unborn(&the_index)
e46bbcf6 322#define read_cache_unmerged() read_index_unmerged(&the_index)
4aab5b46
JH
323#define write_cache(newfd, cache, entries) write_index(&the_index, (newfd))
324#define discard_cache() discard_index(&the_index)
94a5728c 325#define unmerged_cache() unmerged_index(&the_index)
4aab5b46
JH
326#define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen))
327#define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option))
81dc2307 328#define rename_cache_entry_at(pos, new_name) rename_index_entry_at(&the_index, (pos), (new_name))
4aab5b46
JH
329#define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos))
330#define remove_file_from_cache(path) remove_file_from_index(&the_index, (path))
38ed1d89
JH
331#define add_to_cache(path, st, flags) add_to_index(&the_index, (path), (st), (flags))
332#define add_file_to_cache(path, flags) add_file_to_index(&the_index, (path), (flags))
3deffc52 333#define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL)
4bd5b7da
JH
334#define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options))
335#define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
cd2fef59 336#define cache_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase))
98fa4738 337#define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen))
4aab5b46 338#endif
e83c5163 339
edaec3fb
JH
340enum object_type {
341 OBJ_BAD = -1,
342 OBJ_NONE = 0,
343 OBJ_COMMIT = 1,
344 OBJ_TREE = 2,
345 OBJ_BLOB = 3,
346 OBJ_TAG = 4,
347 /* 5 for future expansion */
348 OBJ_OFS_DELTA = 6,
349 OBJ_REF_DELTA = 7,
355885d5 350 OBJ_ANY,
edaec3fb
JH
351 OBJ_MAX,
352};
353
b45563a2
JH
354static inline enum object_type object_type(unsigned int mode)
355{
356 return S_ISDIR(mode) ? OBJ_TREE :
357 S_ISGITLINK(mode) ? OBJ_COMMIT :
358 OBJ_BLOB;
359}
360
8ac069ac 361#define GIT_DIR_ENVIRONMENT "GIT_DIR"
892c41b9 362#define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
8ac069ac 363#define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
d19938ab 364#define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
bb233d69 365#define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
5da5c8f4 366#define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
d4ebc36c
JH
367#define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR"
368#define CONFIG_ENVIRONMENT "GIT_CONFIG"
d4ebc36c 369#define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH"
0454dd93 370#define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES"
d0bfd026
JH
371#define GITATTRIBUTES_FILE ".gitattributes"
372#define INFOATTRIBUTES_FILE "info/attributes"
f48fd688 373#define ATTRIBUTE_MACRO_PREFIX "[attr]"
bb233d69 374
7d1864ce
JH
375extern int is_bare_repository_cfg;
376extern int is_bare_repository(void);
68025633 377extern int is_inside_git_dir(void);
e90fdc39 378extern char *git_work_tree_cfg;
892c41b9 379extern int is_inside_work_tree(void);
d2b0708e 380extern int have_git_dir(void);
c5fba16c 381extern const char *get_git_dir(void);
8ac069ac
JH
382extern char *get_object_directory(void);
383extern char *get_index_file(void);
5da5c8f4 384extern char *get_graft_file(void);
d7ac12b2 385extern int set_git_dir(const char *path);
e90fdc39 386extern const char *get_git_work_tree(void);
b44ebb19 387extern const char *read_gitfile_gently(const char *path);
19757d80 388extern void set_git_work_tree(const char *tree);
8ac069ac
JH
389
390#define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
bb233d69 391
6b5ee137 392extern const char **get_pathspec(const char *prefix, const char **pathspec);
59f0f2f3 393extern void setup_work_tree(void);
4ca06608 394extern const char *setup_git_directory_gently(int *);
d288a700 395extern const char *setup_git_directory(void);
6b5ee137 396extern const char *prefix_path(const char *prefix, int len, const char *path);
4ca06608 397extern const char *prefix_filename(const char *prefix, int len, const char *path);
e23d0b4a 398extern void verify_filename(const char *prefix, const char *name);
ea92f41f 399extern void verify_non_filename(const char *prefix, const char *name);
d288a700 400
f225aeb2
DB
401#define INIT_DB_QUIET 0x0001
402
403extern int init_db(const char *template_dir, unsigned int flags);
404
e83c5163
LT
405#define alloc_nr(x) (((x)+16)*3/2)
406
6815e569
JK
407/*
408 * Realloc the buffer pointed at by variable 'x' so that it can hold
409 * at least 'nr' entries; the number of entries currently allocated
410 * is 'alloc', using the standard growing factor alloc_nr() macro.
411 *
412 * DO NOT USE any expression with side-effect for 'x' or 'alloc'.
413 */
414#define ALLOC_GROW(x, nr, alloc) \
415 do { \
c927e6c6 416 if ((nr) > alloc) { \
4234a761
JH
417 if (alloc_nr(alloc) < (nr)) \
418 alloc = (nr); \
419 else \
420 alloc = alloc_nr(alloc); \
6815e569
JK
421 x = xrealloc((x), alloc * sizeof(*(x))); \
422 } \
423 } while(0)
424
734aab75 425/* Initialize and use the cache information */
4aab5b46 426extern int read_index(struct index_state *);
671c9b7e 427extern int read_index_preload(struct index_state *, const char **pathspec);
4aab5b46 428extern int read_index_from(struct index_state *, const char *path);
fa7b3c2f 429extern int is_index_unborn(struct index_state *);
e46bbcf6 430extern int read_index_unmerged(struct index_state *);
e1afca4f 431extern int write_index(struct index_state *, int newfd);
4aab5b46 432extern int discard_index(struct index_state *);
d1f128b0 433extern int unmerged_index(const struct index_state *);
8dcf39c4 434extern int verify_path(const char *path);
cd2fef59 435extern struct cache_entry *index_name_exists(struct index_state *istate, const char *name, int namelen, int igncase);
d1f128b0 436extern int index_name_pos(const struct index_state *, const char *name, int namelen);
192268c1
JH
437#define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
438#define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
b155725d 439#define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
af3785dc 440#define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
39425819 441#define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */
4aab5b46 442extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option);
8fd2cb40 443extern struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really);
81dc2307 444extern void rename_index_entry_at(struct index_state *, int pos, const char *new_name);
4aab5b46 445extern int remove_index_entry_at(struct index_state *, int pos);
36419c8e 446extern void remove_marked_cache_entries(struct index_state *istate);
4aab5b46 447extern int remove_file_from_index(struct index_state *, const char *path);
38ed1d89
JH
448#define ADD_CACHE_VERBOSE 1
449#define ADD_CACHE_PRETEND 2
01665924 450#define ADD_CACHE_IGNORE_ERRORS 4
041aee31 451#define ADD_CACHE_IGNORE_REMOVAL 8
39425819 452#define ADD_CACHE_INTENT 16
38ed1d89
JH
453extern int add_to_index(struct index_state *, const char *path, struct stat *, int flags);
454extern int add_file_to_index(struct index_state *, const char *path, int flags);
6640f881 455extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, int refresh);
dbbce55b 456extern int ce_same_name(struct cache_entry *a, struct cache_entry *b);
98fa4738 457extern int index_name_is_other(const struct index_state *, const char *, int);
4bd5b7da
JH
458
459/* do stat comparison even if CE_VALID is true */
460#define CE_MATCH_IGNORE_VALID 01
461/* do not check the contents but report dirty on racily-clean entries */
462#define CE_MATCH_RACY_IS_DIRTY 02
d1f128b0
LT
463extern int ie_match_stat(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
464extern int ie_modified(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
4bd5b7da 465
c0fd1f51 466extern int ce_path_match(const struct cache_entry *ce, const char **pathspec);
53bca91a 467extern int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object, enum object_type type, const char *path);
ec1fcc16 468extern int index_path(unsigned char *sha1, const char *path, struct stat *st, int write_object);
415e96c8
JH
469extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
470
b6986d8a
LT
471/* "careful lstat()" */
472extern int check_path(const char *path, int len, struct stat *st);
473
405e5b2f
LT
474#define REFRESH_REALLY 0x0001 /* ignore_valid */
475#define REFRESH_UNMERGED 0x0002 /* allow unmerged */
476#define REFRESH_QUIET 0x0004 /* be quiet about it */
477#define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */
3f1b7b60 478#define REFRESH_IGNORE_SUBMODULES 0x0010 /* ignore submodules */
43673fdd 479#define REFRESH_IN_PORCELAIN 0x0020 /* user friendly output, not "needs update" */
3deffc52 480extern int refresh_index(struct index_state *, unsigned int flags, const char **pathspec, char *seen, char *header_msg);
405e5b2f 481
021b6e45
JH
482struct lock_file {
483 struct lock_file *next;
4723ee99 484 int fd;
5e635e39 485 pid_t owner;
1084b845 486 char on_list;
021b6e45 487 char filename[PATH_MAX];
415e96c8 488};
acd3b9ec
JH
489#define LOCK_DIE_ON_ERROR 1
490#define LOCK_NODEREF 2
e43a6fd3 491extern NORETURN void unable_to_lock_index_die(const char *path, int err);
40aaae88 492extern int hold_lock_file_for_update(struct lock_file *, const char *path, int);
ea3cd5c7 493extern int hold_lock_file_for_append(struct lock_file *, const char *path, int);
021b6e45 494extern int commit_lock_file(struct lock_file *);
30ca07a2
JH
495
496extern int hold_locked_index(struct lock_file *, int);
497extern int commit_locked_index(struct lock_file *);
5e7f56ac 498extern void set_alternate_index_output(const char *);
d6cf61bf 499extern int close_lock_file(struct lock_file *);
021b6e45 500extern void rollback_lock_file(struct lock_file *);
eca35a25 501extern int delete_ref(const char *, const unsigned char *sha1, int delopt);
734aab75 502
2ae1c53b 503/* Environment bits from configuration mechanism */
17712991 504extern int trust_executable_bit;
1ce4790b 505extern int trust_ctime;
9378c161 506extern int quote_path_fully;
78a8d641 507extern int has_symlinks;
0a9b88b7 508extern int ignore_case;
5f73076c 509extern int assume_unchanged;
9f0bb90d 510extern int prefer_symlink_refs;
6de08ae6 511extern int log_all_ref_updates;
2f8acdb3 512extern int warn_ambiguous_refs;
457f06d6 513extern int shared_repository;
2ae1c53b 514extern const char *apply_default_whitespace;
12f6c308 515extern int zlib_compression_level;
960ccca6
DH
516extern int core_compression_level;
517extern int core_compression_seen;
60bb8b14 518extern size_t packed_git_window_size;
77ccc5bb 519extern size_t packed_git_limit;
18bdec11 520extern size_t delta_base_cache_limit;
6c510bee 521extern int auto_crlf;
aafe9fba 522extern int fsync_object_files;
671c9b7e 523extern int core_preload_index;
17712991 524
21e5ad50
SP
525enum safe_crlf {
526 SAFE_CRLF_FALSE = 0,
527 SAFE_CRLF_FAIL = 1,
528 SAFE_CRLF_WARN = 2,
529};
530
531extern enum safe_crlf safe_crlf;
532
9ed36cfa 533enum branch_track {
9188ed89 534 BRANCH_TRACK_UNSPECIFIED = -1,
9ed36cfa
JS
535 BRANCH_TRACK_NEVER = 0,
536 BRANCH_TRACK_REMOTE,
537 BRANCH_TRACK_ALWAYS,
538 BRANCH_TRACK_EXPLICIT,
539};
540
c998ae9b
DS
541enum rebase_setup_type {
542 AUTOREBASE_NEVER = 0,
543 AUTOREBASE_LOCAL,
544 AUTOREBASE_REMOTE,
545 AUTOREBASE_ALWAYS,
546};
547
52153747 548enum push_default_type {
52153747
FAG
549 PUSH_DEFAULT_NOTHING = 0,
550 PUSH_DEFAULT_MATCHING,
551 PUSH_DEFAULT_TRACKING,
552 PUSH_DEFAULT_CURRENT,
553};
554
9ed36cfa 555extern enum branch_track git_branch_track;
c998ae9b 556extern enum rebase_setup_type autorebase;
52153747 557extern enum push_default_type push_default;
9ed36cfa 558
348df166
JS
559enum object_creation_mode {
560 OBJECT_CREATION_USES_HARDLINKS = 0,
561 OBJECT_CREATION_USES_RENAMES = 1,
562};
563
564extern enum object_creation_mode object_creation_mode;
be66a6c4 565
7f3140cd
JS
566extern int grafts_replace_parents;
567
ab9cb76f
JH
568#define GIT_REPO_VERSION 0
569extern int repository_format_version;
570extern int check_repository_format(void);
571
734aab75
LT
572#define MTIME_CHANGED 0x0001
573#define CTIME_CHANGED 0x0002
574#define OWNER_CHANGED 0x0004
575#define MODE_CHANGED 0x0008
576#define INODE_CHANGED 0x0010
577#define DATA_CHANGED 0x0020
8ae0a8c5 578#define TYPE_CHANGED 0x0040
e83c5163 579
108bebea
AR
580extern char *mksnpath(char *buf, size_t n, const char *fmt, ...)
581 __attribute__((format (printf, 3, 4)));
fe2d7776
AR
582extern char *git_snpath(char *buf, size_t n, const char *fmt, ...)
583 __attribute__((format (printf, 3, 4)));
aba13e7c
AR
584extern char *git_pathdup(const char *fmt, ...)
585 __attribute__((format (printf, 1, 2)));
108bebea 586
e83c5163 587/* Return a statically allocated filename matching the sha1 signature */
4ec99bf0
TS
588extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
589extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
73134b6d 590extern char *sha1_file_name(const unsigned char *sha1);
bf592c50
DB
591extern char *sha1_pack_name(const unsigned char *sha1);
592extern char *sha1_pack_index_name(const unsigned char *sha1);
013f276e 593extern const char *find_unique_abbrev(const unsigned char *sha1, int);
88cd621d 594extern const unsigned char null_sha1[20];
0bef57ee
DR
595static inline int is_null_sha1(const unsigned char *sha1)
596{
597 return !memcmp(sha1, null_sha1, 20);
598}
a89fccd2
DR
599static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
600{
601 return memcmp(sha1, sha2, 20);
602}
e702496e
SP
603static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
604{
605 memcpy(sha_dst, sha_src, 20);
606}
a8e0d16d
JH
607static inline void hashclr(unsigned char *hash)
608{
609 memset(hash, 0, 20);
610}
f55527f8 611extern int is_empty_blob_sha1(const unsigned char *sha1);
e83c5163 612
14d9c578
JK
613#define EMPTY_TREE_SHA1_HEX \
614 "4b825dc642cb6eb9a060e54bf8d69288fbee4904"
615#define EMPTY_TREE_SHA1_BIN \
616 "\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" \
617 "\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04"
618
f2db68ed
HE
619int git_mkstemp(char *path, size_t n, const char *template);
620
003b33a8
DA
621int git_mkstemps(char *path, size_t n, const char *template, int suffix_len);
622
06cbe855
HO
623/*
624 * NOTE NOTE NOTE!!
625 *
626 * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must
627 * not be changed. Old repositories have core.sharedrepository written in
628 * numeric format, and therefore these values are preserved for compatibility
629 * reasons.
630 */
94df2506 631enum sharedrepo {
06cbe855
HO
632 PERM_UMASK = 0,
633 OLD_PERM_GROUP = 1,
634 OLD_PERM_EVERYBODY = 2,
635 PERM_GROUP = 0660,
636 PERM_EVERYBODY = 0664,
94df2506
JH
637};
638int git_config_perm(const char *var, const char *value);
17e61b82
JH
639int set_shared_perm(const char *path, int mode);
640#define adjust_shared_perm(path) set_shared_perm((path), 0)
b2cb9425 641int safe_create_leading_directories(char *path);
8e21d63b 642int safe_create_leading_directories_const(const char *path);
bd22c904 643char *enter_repo(char *path, int strict);
e5392c51
JS
644static inline int is_absolute_path(const char *path)
645{
25fe217b 646 return path[0] == '/' || has_dos_drive_prefix(path);
e5392c51 647}
90b4a71c 648int is_directory(const char *);
e5392c51 649const char *make_absolute_path(const char *path);
1b9a9467 650const char *make_nonrelative_path(const char *path);
044bbbcb 651const char *make_relative_path(const char *abs, const char *base);
f3cad0ad 652int normalize_path_copy(char *dst, const char *src);
0454dd93 653int longest_ancestor_length(const char *path, const char *prefix_list);
4fcc86b0 654char *strip_path_suffix(const char *path, const char *suffix);
b2cb9425 655
e83c5163 656/* Read and unpack a sha1 file into memory, write memory to a sha1 file */
21666f1a 657extern int sha1_object_info(const unsigned char *, unsigned long *);
21666f1a 658extern void * read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size);
ce9fbf16 659extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1);
bf0f910d 660extern int write_sha1_file(void *buf, unsigned long len, const char *type, unsigned char *return_sha1);
21666f1a 661extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *);
bbac7311 662extern int force_object_loose(const unsigned char *sha1, time_t mtime);
8237b185 663
0e8189e2
NP
664/* global flag to enable extra checks when accessing packed objects */
665extern int do_check_packed_object_crc;
666
5d6ccf5c 667extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type);
e83c5163 668
839837b9 669extern int move_temp_to_file(const char *tmpfile, const char *filename);
8237b185 670
cd673c1f 671extern int has_sha1_pack(const unsigned char *sha1);
8237b185 672extern int has_sha1_file(const unsigned char *sha1);
0f4dc14a 673extern int has_loose_object_nonlocal(const unsigned char *sha1);
8237b185 674
bf592c50
DB
675extern int has_pack_file(const unsigned char *sha1);
676extern int has_pack_index(const unsigned char *sha1);
677
192a6be2
LT
678extern const signed char hexval_table[256];
679static inline unsigned int hexval(unsigned char c)
e49521b5
JH
680{
681 return hexval_table[c];
682}
683
e83c5163 684/* Convert to/from hex/sha1 representation */
46a6c262
JH
685#define MINIMUM_ABBREV 4
686#define DEFAULT_ABBREV 7
687
3c249c95 688extern int get_sha1(const char *str, unsigned char *sha1);
a0cd87a5 689extern int get_sha1_with_mode(const char *str, unsigned char *sha1, unsigned *mode);
197ee8c9
LT
690extern int get_sha1_hex(const char *hex, unsigned char *sha1);
691extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
ca8db142 692extern int read_ref(const char *filename, unsigned char *sha1);
8da19775 693extern const char *resolve_ref(const char *path, unsigned char *sha1, int, int *);
e86eb666 694extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref);
eb3a4822 695extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref);
431b1969 696extern int interpret_branch_name(const char *str, struct strbuf *);
e86eb666 697
79803322
SP
698extern int refname_match(const char *abbrev_name, const char *full_name, const char **rules);
699extern const char *ref_rev_parse_rules[];
605b4978 700extern const char *ref_fetch_rules[];
79803322 701
8b5157e4 702extern int create_symref(const char *ref, const char *refs_heads_master, const char *logmsg);
c847f537 703extern int validate_headref(const char *ref);
e83c5163 704
958ba6c9 705extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
0ab9e1e8 706extern int df_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
79517a06 707extern int cache_name_compare(const char *name1, int len1, const char *name2, int len2);
e83c5163 708
40469ee9 709extern void *read_object_with_reference(const unsigned char *sha1,
bf0f910d 710 const char *required_type,
40469ee9
JH
711 unsigned long *size,
712 unsigned char *sha1_ret);
f4913f91 713
81776315
JH
714extern struct object *peel_to_type(const char *name, int namelen,
715 struct object *o, enum object_type);
716
73013afd
JH
717enum date_mode {
718 DATE_NORMAL = 0,
719 DATE_RELATIVE,
720 DATE_SHORT,
721 DATE_LOCAL,
722 DATE_ISO8601,
7dff9b30
LT
723 DATE_RFC2822,
724 DATE_RAW
73013afd
JH
725};
726
f8493ec0 727const char *show_date(unsigned long time, int timezone, enum date_mode mode);
2a39064c 728int parse_date(const char *date, char *buf, int bufsize);
ecee9d9e 729void datestamp(char *buf, int bufsize);
3c07b1d1 730unsigned long approxidate(const char *);
856665f8 731enum date_mode parse_date_format(const char *format);
ecee9d9e 732
774751a8
JH
733#define IDENT_WARN_ON_NO_NAME 1
734#define IDENT_ERROR_ON_NO_NAME 2
735#define IDENT_NO_DATE 4
749be728
JH
736extern const char *git_author_info(int);
737extern const char *git_committer_info(int);
798123af 738extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int);
d9ccfe77 739extern const char *fmt_name(const char *name, const char *email);
6aa33f40 740
12dccc16
LT
741struct checkout {
742 const char *base_dir;
743 int base_dir_len;
744 unsigned force:1,
745 quiet:1,
746 not_new:1,
747 refresh_cache:1;
748};
749
efbc5831 750extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath);
b9fd2846
LT
751
752struct cache_def {
753 char path[PATH_MAX + 1];
754 int len;
755 int flags;
756 int track_flags;
757 int prefix_len_stat_func;
758};
759
57199892 760extern int has_symlink_leading_path(const char *name, int len);
b9fd2846 761extern int threaded_has_symlink_leading_path(struct cache_def *, const char *, int);
57199892
KB
762extern int has_symlink_or_noent_leading_path(const char *name, int len);
763extern int has_dirs_only_path(const char *name, int len, int prefix_len);
764extern void invalidate_lstat_cache(const char *name, int len);
bda6eb0d 765extern void clear_lstat_cache(void);
78478927
KB
766extern void schedule_dir_for_removal(const char *name, int len);
767extern void remove_scheduled_dirs(void);
12dccc16 768
9a217f2a 769extern struct alternate_object_database {
d5a63b99 770 struct alternate_object_database *next;
9a217f2a 771 char *name;
8f1d2e6f 772 char base[FLEX_ARRAY]; /* more */
d5a63b99 773} *alt_odb_list;
9a217f2a 774extern void prepare_alt_odb(void);
bef70b22 775extern void add_to_alternates_file(const char *reference);
d79796bc
JH
776typedef int alt_odb_fn(struct alternate_object_database *, void *);
777extern void foreach_alt_odb(alt_odb_fn, void*);
9a217f2a 778
c41ee586
SP
779struct pack_window {
780 struct pack_window *next;
781 unsigned char *base;
782 off_t offset;
783 size_t len;
784 unsigned int last_used;
785 unsigned int inuse_cnt;
786};
787
9a217f2a
JH
788extern struct packed_git {
789 struct packed_git *next;
c41ee586 790 struct pack_window *windows;
2dc3a234 791 off_t pack_size;
57059091
NP
792 const void *index_data;
793 size_t index_size;
794 uint32_t num_objects;
8eca0b47
NP
795 uint32_t num_bad_objects;
796 unsigned char *bad_object_sha1;
42873078 797 int index_version;
57059091 798 time_t mtime;
9bc879c1 799 int pack_fd;
8d25931d
BC
800 unsigned pack_local:1,
801 pack_keep:1;
bf592c50 802 unsigned char sha1[20];
8f1d2e6f
JH
803 /* something like ".git/objects/pack/xxxxx.pack" */
804 char pack_name[FLEX_ARRAY]; /* more */
9a217f2a 805} *packed_git;
f3bf9224
JH
806
807struct pack_entry {
c4001d92 808 off_t offset;
f3bf9224
JH
809 unsigned char sha1[20];
810 struct packed_git *p;
811};
812
d1c133f5
LT
813struct ref {
814 struct ref *next;
815 unsigned char old_sha1[20];
816 unsigned char new_sha1[20];
be885d96 817 char *symref;
9f8a15c7
SP
818 unsigned int force:1,
819 merge:1,
820 nonfastforward:1,
821 deletion:1;
8736a848
JK
822 enum {
823 REF_STATUS_NONE = 0,
824 REF_STATUS_OK,
825 REF_STATUS_REJECT_NONFASTFORWARD,
826 REF_STATUS_REJECT_NODELETE,
827 REF_STATUS_UPTODATE,
ca74c458 828 REF_STATUS_REMOTE_REJECT,
2a0fe89a 829 REF_STATUS_EXPECTING_REPORT,
8736a848 830 } status;
2a0fe89a 831 char *remote_status;
f88395ac 832 struct ref *peer_ref; /* when renaming */
8f1d2e6f 833 char name[FLEX_ARRAY]; /* more */
d1c133f5
LT
834};
835
2718ff09
LT
836#define REF_NORMAL (1u << 0)
837#define REF_HEADS (1u << 1)
838#define REF_TAGS (1u << 2)
839
5483f799 840extern struct ref *find_ref_by_name(const struct ref *list, const char *name);
cda69f48 841
7841ce79 842#define CONNECT_VERBOSE (1u << 0)
4577370e 843extern struct child_process *git_connect(int fd[2], const char *url, const char *prog, int flags);
98158e9c 844extern int finish_connect(struct child_process *conn);
013e7c7f 845extern int path_match(const char *path, int nr, char **match);
41cb7488 846extern int get_ack(int fd, unsigned char *result_sha1);
40c155ff
JH
847struct extra_have_objects {
848 int nr, alloc;
849 unsigned char (*array)[20];
850};
851extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, unsigned int flags, struct extra_have_objects *);
211b5f9e 852extern int server_supports(const char *feature);
f7192598 853
bf592c50
DB
854extern struct packed_git *parse_pack_index(unsigned char *sha1);
855
9a217f2a 856extern void prepare_packed_git(void);
fc04c412 857extern void reprepare_packed_git(void);
bf592c50
DB
858extern void install_packed_git(struct packed_git *pack);
859
a6080a0a 860extern struct packed_git *find_sha1_pack(const unsigned char *sha1,
bf592c50
DB
861 struct packed_git *packs);
862
276bc2ca 863extern void pack_report(void);
d079837e 864extern int open_pack_index(struct packed_git *);
4b25d091 865extern unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned int *);
c9ced051 866extern void close_pack_windows(struct packed_git *);
03e79c88 867extern void unuse_pack(struct pack_window **);
c74faea1 868extern void free_pack_by_name(const char *);
3d20c636 869extern void clear_delta_base_cache(void);
42873078 870extern struct packed_git *add_packed_git(const char *, int, int);
d079837e 871extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t);
99093238 872extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t);
c4001d92
SP
873extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *);
874extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *);
09ded04b 875extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep);
54dab52a 876extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t);
c4001d92 877extern const char *packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *);
9a217f2a 878
8f3f9b09
JH
879/* Dumb servers support */
880extern int update_server_info(int);
881
ef90d6d4
JS
882typedef int (*config_fn_t)(const char *, const char *, void *);
883extern int git_default_config(const char *, const char *, void *);
884extern int git_config_from_file(config_fn_t fn, const char *, void *);
885extern int git_config(config_fn_t fn, void *);
0b87b6e0 886extern int git_parse_ulong(const char *, unsigned long *);
17712991 887extern int git_config_int(const char *, const char *);
0b87b6e0 888extern unsigned long git_config_ulong(const char *, const char *);
a53f2ec6 889extern int git_config_bool_or_int(const char *, const char *, int *);
17712991 890extern int git_config_bool(const char *, const char *);
ea5105a5 891extern int git_config_string(const char **, const char *, const char *);
10bea152 892extern int git_config_set(const char *, const char *);
4ddba79d 893extern int git_config_set_multivar(const char *, const char *, const char *, int);
0667fcfb 894extern int git_config_rename_section(const char *, const char *);
506b17b1 895extern const char *git_etc_gitconfig(void);
ef90d6d4 896extern int check_repository_format_version(const char *var, const char *value, void *cb);
ab88c363
JK
897extern int git_config_system(void);
898extern int git_config_global(void);
40ea4ed9 899extern int config_error_nonbool(const char *);
dc871831 900extern const char *config_exclusive_filename;
17712991 901
e1b10391
LT
902#define MAX_GITNAME (1000)
903extern char git_default_email[MAX_GITNAME];
904extern char git_default_name[MAX_GITNAME];
bb1ae3f6 905extern int user_ident_explicitly_given;
e1b10391 906
1a8f2741 907extern const char *git_commit_encoding;
3a55602e 908extern const char *git_log_output_encoding;
d551a488 909extern const char *git_mailmap_file;
4e72dcec 910
06f59e9f
TT
911/* IO helper functions */
912extern void maybe_flush_or_die(FILE *, const char *);
f3123c4a 913extern int copy_fd(int ifd, int ofd);
1468bd47 914extern int copy_file(const char *dst, const char *src, int mode);
0104ca09
HO
915extern ssize_t read_in_full(int fd, void *buf, size_t count);
916extern ssize_t write_in_full(int fd, const void *buf, size_t count);
7230e6d0 917extern void write_or_die(int fd, const void *buf, size_t count);
6ce4e61f 918extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg);
e0814056 919extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg);
4c81b03e 920extern void fsync_or_die(int fd, const char *);
ad897215 921
f67b45f8
LT
922/* pager.c */
923extern void setup_pager(void);
872da32d 924extern const char *pager_program;
6e9af863 925extern int pager_in_use(void);
aa086eb8 926extern int pager_use_color;
f67b45f8 927
ee9601e6 928extern const char *editor_program;
dfb068be 929extern const char *excludes_file;
4d87b9c5 930
051308f6 931/* base85 */
f9815772
JM
932int decode_85(char *dst, const char *line, int linelen);
933void encode_85(char *buf, const unsigned char *data, int bytes);
051308f6 934
855419f7 935/* alloc.c */
100c5f3b
LT
936extern void *alloc_blob_node(void);
937extern void *alloc_tree_node(void);
938extern void *alloc_commit_node(void);
939extern void *alloc_tag_node(void);
940extern void *alloc_object_node(void);
855419f7
LT
941extern void alloc_report(void);
942
6ce4e61f 943/* trace.c */
6ce4e61f 944extern void trace_printf(const char *format, ...);
b319ce4c 945extern void trace_argv_printf(const char **argv, const char *format, ...);
6ce4e61f 946
6c510bee 947/* convert.c */
5ecd293d 948/* returns 1 if *dst was used */
21e5ad50
SP
949extern int convert_to_git(const char *path, const char *src, size_t len,
950 struct strbuf *dst, enum safe_crlf checksafe);
5ecd293d 951extern int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst);
6c510bee 952
b6ec1d61 953/* add */
7ae02a30
AR
954/*
955 * return 0 if success, 1 - if addition of a file failed and
956 * ADD_FILES_IGNORE_ERRORS was specified in flags
957 */
958int add_files_to_cache(const char *prefix, const char **pathspec, int flags);
b6ec1d61 959
aecbf914
JH
960/* diff.c */
961extern int diff_auto_refresh_index;
962
68faf689
JH
963/* match-trees.c */
964void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
965
a9cc857a
JH
966/*
967 * whitespace rules.
968 * used by both diff and apply
969 */
970#define WS_TRAILING_SPACE 01
971#define WS_SPACE_BEFORE_TAB 02
459fa6d0 972#define WS_INDENT_WITH_NON_TAB 04
b2979ff5 973#define WS_CR_AT_EOL 010
a9cc857a 974#define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB)
cf1b7869
JH
975extern unsigned whitespace_rule_cfg;
976extern unsigned whitespace_rule(const char *);
977extern unsigned parse_whitespace_rule(const char *);
8f8841e9
JH
978extern unsigned ws_check(const char *line, int len, unsigned ws_rule);
979extern void ws_check_emit(const char *line, int len, unsigned ws_rule, FILE *stream, const char *set, const char *reset, const char *ws);
c1795bb0 980extern char *whitespace_error_string(unsigned ws);
fe3403c3 981extern int ws_fix_copy(char *, const char *, int, unsigned, int *);
877f23cc 982extern int ws_blank_line(const char *line, int len, unsigned ws_rule);
a9cc857a 983
ee425e46 984/* ls-files */
ee425e46
JH
985int report_path_error(const char *ps_matched, const char **pathspec, int prefix_offset);
986void overlay_tree_on_cache(const char *tree_name, const char *prefix);
987
94351118 988char *alias_lookup(const char *alias);
0989fe96 989int split_cmdline(char *cmdline, const char ***argv);
94351118 990
e83c5163 991#endif /* CACHE_H */