unpack-trees.c: generalize verify_* functions
[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
e663db2f
NTND
180/* Only remove in work directory, not index */
181#define CE_WT_REMOVE (0x400000)
182
06aaaa0b
NTND
183/*
184 * Extended on-disk flags
185 */
388b2acd 186#define CE_INTENT_TO_ADD 0x20000000
44a36913 187#define CE_SKIP_WORKTREE 0x40000000
06aaaa0b
NTND
188/* CE_EXTENDED2 is for future extension */
189#define CE_EXTENDED2 0x80000000
190
44a36913 191#define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD | CE_SKIP_WORKTREE)
06aaaa0b
NTND
192
193/*
194 * Safeguard to avoid saving wrong flags:
195 * - CE_EXTENDED2 won't get saved until its semantic is known
196 * - Bits in 0x0000FFFF have been saved in ce_flags already
197 * - Bits in 0x003F0000 are currently in-memory flags
198 */
199#if CE_EXTENDED_FLAGS & 0x803FFFFF
200#error "CE_EXTENDED_FLAGS out of range"
201#endif
202
eb7a2f1d
LT
203/*
204 * Copy the sha1 and stat state of a cache entry from one to
205 * another. But we never change the name, or the hash state!
206 */
207#define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)
208static inline void copy_cache_entry(struct cache_entry *dst, struct cache_entry *src)
209{
210 unsigned int state = dst->ce_flags & CE_STATE_MASK;
211
212 /* Don't copy hash chain and name */
213 memcpy(dst, src, offsetof(struct cache_entry, next));
214
215 /* Restore the hash state */
216 dst->ce_flags = (dst->ce_flags & ~CE_STATE_MASK) | state;
217}
218
7fec10b7
JH
219static inline unsigned create_ce_flags(size_t len, unsigned stage)
220{
221 if (len >= CE_NAMEMASK)
222 len = CE_NAMEMASK;
223 return (len | (stage << CE_STAGESHIFT));
224}
225
226static inline size_t ce_namelen(const struct cache_entry *ce)
227{
228 size_t len = ce->ce_flags & CE_NAMEMASK;
229 if (len < CE_NAMEMASK)
230 return len;
231 return strlen(ce->name + CE_NAMEMASK) + CE_NAMEMASK;
232}
233
aee46198 234#define ce_size(ce) cache_entry_size(ce_namelen(ce))
06aaaa0b
NTND
235#define ondisk_ce_size(ce) (((ce)->ce_flags & CE_EXTENDED) ? \
236 ondisk_cache_entry_extended_size(ce_namelen(ce)) : \
237 ondisk_cache_entry_size(ce_namelen(ce)))
7a51ed66 238#define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT)
eadb5831 239#define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE)
44a36913 240#define ce_skip_worktree(ce) ((ce)->ce_flags & CE_SKIP_WORKTREE)
eadb5831 241#define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE)
aee46198 242
e4479470 243#define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644)
8ae0a8c5
KS
244static inline unsigned int create_ce_mode(unsigned int mode)
245{
8ae0a8c5 246 if (S_ISLNK(mode))
7a51ed66 247 return S_IFLNK;
302b9282 248 if (S_ISDIR(mode) || S_ISGITLINK(mode))
7a51ed66
LT
249 return S_IFGITLINK;
250 return S_IFREG | ce_permissions(mode);
8ae0a8c5 251}
185c975f
JH
252static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned int mode)
253{
78a8d641
JS
254 extern int trust_executable_bit, has_symlinks;
255 if (!has_symlinks && S_ISREG(mode) &&
7a51ed66 256 ce && S_ISLNK(ce->ce_mode))
78a8d641 257 return ce->ce_mode;
185c975f 258 if (!trust_executable_bit && S_ISREG(mode)) {
7a51ed66 259 if (ce && S_ISREG(ce->ce_mode))
185c975f
JH
260 return ce->ce_mode;
261 return create_ce_mode(0666);
262 }
263 return create_ce_mode(mode);
264}
d6b8fc30
JH
265static inline int ce_to_dtype(const struct cache_entry *ce)
266{
267 unsigned ce_mode = ntohl(ce->ce_mode);
268 if (S_ISREG(ce_mode))
269 return DT_REG;
270 else if (S_ISDIR(ce_mode) || S_ISGITLINK(ce_mode))
271 return DT_DIR;
272 else if (S_ISLNK(ce_mode))
273 return DT_LNK;
274 else
275 return DT_UNKNOWN;
276}
1b0c7174
JH
277#define canon_mode(mode) \
278 (S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \
302b9282 279 S_ISLNK(mode) ? S_IFLNK : S_ISDIR(mode) ? S_IFDIR : S_IFGITLINK)
e4479470 280
06aaaa0b
NTND
281#define flexible_size(STRUCT,len) ((offsetof(struct STRUCT,name) + (len) + 8) & ~7)
282#define cache_entry_size(len) flexible_size(cache_entry,len)
283#define ondisk_cache_entry_size(len) flexible_size(ondisk_cache_entry,len)
284#define ondisk_cache_entry_extended_size(len) flexible_size(ondisk_cache_entry_extended,len)
f5cabd13 285
228e94f9
JH
286struct index_state {
287 struct cache_entry **cache;
288 unsigned int cache_nr, cache_alloc, cache_changed;
289 struct cache_tree *cache_tree;
fba2f38a 290 struct cache_time timestamp;
7a51ed66 291 void *alloc;
913e0e99
JH
292 unsigned name_hash_initialized : 1,
293 initialized : 1;
cf558704 294 struct hash_table name_hash;
228e94f9
JH
295};
296
297extern struct index_state the_index;
298
96872bc2
LT
299/* Name hashing */
300extern void add_name_hash(struct index_state *istate, struct cache_entry *ce);
301/*
302 * We don't actually *remove* it, we can just mark it invalid so that
303 * we won't find it in lookups.
304 *
305 * Not only would we have to search the lists (simple enough), but
306 * we'd also have to rehash other hash buckets in case this makes the
307 * hash bucket empty (common). So it's much better to just mark
308 * it.
309 */
310static inline void remove_name_hash(struct cache_entry *ce)
311{
312 ce->ce_flags |= CE_UNHASHED;
313}
314
315
4aab5b46 316#ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
228e94f9
JH
317#define active_cache (the_index.cache)
318#define active_nr (the_index.cache_nr)
319#define active_alloc (the_index.cache_alloc)
320#define active_cache_changed (the_index.cache_changed)
321#define active_cache_tree (the_index.cache_tree)
e83c5163 322
4aab5b46
JH
323#define read_cache() read_index(&the_index)
324#define read_cache_from(path) read_index_from(&the_index, (path))
671c9b7e 325#define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec))
fa7b3c2f 326#define is_cache_unborn() is_index_unborn(&the_index)
e46bbcf6 327#define read_cache_unmerged() read_index_unmerged(&the_index)
4aab5b46
JH
328#define write_cache(newfd, cache, entries) write_index(&the_index, (newfd))
329#define discard_cache() discard_index(&the_index)
94a5728c 330#define unmerged_cache() unmerged_index(&the_index)
4aab5b46
JH
331#define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen))
332#define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option))
81dc2307 333#define rename_cache_entry_at(pos, new_name) rename_index_entry_at(&the_index, (pos), (new_name))
4aab5b46
JH
334#define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos))
335#define remove_file_from_cache(path) remove_file_from_index(&the_index, (path))
38ed1d89
JH
336#define add_to_cache(path, st, flags) add_to_index(&the_index, (path), (st), (flags))
337#define add_file_to_cache(path, flags) add_file_to_index(&the_index, (path), (flags))
d616813d 338#define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL)
4bd5b7da
JH
339#define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options))
340#define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
cd2fef59 341#define cache_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase))
98fa4738 342#define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen))
4aab5b46 343#endif
e83c5163 344
edaec3fb
JH
345enum object_type {
346 OBJ_BAD = -1,
347 OBJ_NONE = 0,
348 OBJ_COMMIT = 1,
349 OBJ_TREE = 2,
350 OBJ_BLOB = 3,
351 OBJ_TAG = 4,
352 /* 5 for future expansion */
353 OBJ_OFS_DELTA = 6,
354 OBJ_REF_DELTA = 7,
355885d5 355 OBJ_ANY,
edaec3fb
JH
356 OBJ_MAX,
357};
358
b45563a2
JH
359static inline enum object_type object_type(unsigned int mode)
360{
361 return S_ISDIR(mode) ? OBJ_TREE :
362 S_ISGITLINK(mode) ? OBJ_COMMIT :
363 OBJ_BLOB;
364}
365
8ac069ac 366#define GIT_DIR_ENVIRONMENT "GIT_DIR"
892c41b9 367#define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
8ac069ac 368#define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
d19938ab 369#define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
bb233d69 370#define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
5da5c8f4 371#define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
d4ebc36c
JH
372#define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR"
373#define CONFIG_ENVIRONMENT "GIT_CONFIG"
d4ebc36c 374#define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH"
0454dd93 375#define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES"
d0bfd026
JH
376#define GITATTRIBUTES_FILE ".gitattributes"
377#define INFOATTRIBUTES_FILE "info/attributes"
f48fd688 378#define ATTRIBUTE_MACRO_PREFIX "[attr]"
bb233d69 379
7d1864ce
JH
380extern int is_bare_repository_cfg;
381extern int is_bare_repository(void);
68025633 382extern int is_inside_git_dir(void);
e90fdc39 383extern char *git_work_tree_cfg;
892c41b9 384extern int is_inside_work_tree(void);
d2b0708e 385extern int have_git_dir(void);
c5fba16c 386extern const char *get_git_dir(void);
8ac069ac
JH
387extern char *get_object_directory(void);
388extern char *get_index_file(void);
5da5c8f4 389extern char *get_graft_file(void);
d7ac12b2 390extern int set_git_dir(const char *path);
e90fdc39 391extern const char *get_git_work_tree(void);
b44ebb19 392extern const char *read_gitfile_gently(const char *path);
19757d80 393extern void set_git_work_tree(const char *tree);
8ac069ac
JH
394
395#define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
bb233d69 396
6b5ee137 397extern const char **get_pathspec(const char *prefix, const char **pathspec);
59f0f2f3 398extern void setup_work_tree(void);
4ca06608 399extern const char *setup_git_directory_gently(int *);
d288a700 400extern const char *setup_git_directory(void);
6b5ee137 401extern const char *prefix_path(const char *prefix, int len, const char *path);
4ca06608 402extern const char *prefix_filename(const char *prefix, int len, const char *path);
e23d0b4a 403extern void verify_filename(const char *prefix, const char *name);
ea92f41f 404extern void verify_non_filename(const char *prefix, const char *name);
d288a700 405
f225aeb2
DB
406#define INIT_DB_QUIET 0x0001
407
408extern int init_db(const char *template_dir, unsigned int flags);
409
e83c5163
LT
410#define alloc_nr(x) (((x)+16)*3/2)
411
6815e569
JK
412/*
413 * Realloc the buffer pointed at by variable 'x' so that it can hold
414 * at least 'nr' entries; the number of entries currently allocated
415 * is 'alloc', using the standard growing factor alloc_nr() macro.
416 *
417 * DO NOT USE any expression with side-effect for 'x' or 'alloc'.
418 */
419#define ALLOC_GROW(x, nr, alloc) \
420 do { \
c927e6c6 421 if ((nr) > alloc) { \
4234a761
JH
422 if (alloc_nr(alloc) < (nr)) \
423 alloc = (nr); \
424 else \
425 alloc = alloc_nr(alloc); \
6815e569
JK
426 x = xrealloc((x), alloc * sizeof(*(x))); \
427 } \
428 } while(0)
429
734aab75 430/* Initialize and use the cache information */
4aab5b46 431extern int read_index(struct index_state *);
671c9b7e 432extern int read_index_preload(struct index_state *, const char **pathspec);
4aab5b46 433extern int read_index_from(struct index_state *, const char *path);
fa7b3c2f 434extern int is_index_unborn(struct index_state *);
e46bbcf6 435extern int read_index_unmerged(struct index_state *);
e1afca4f 436extern int write_index(struct index_state *, int newfd);
4aab5b46 437extern int discard_index(struct index_state *);
d1f128b0 438extern int unmerged_index(const struct index_state *);
8dcf39c4 439extern int verify_path(const char *path);
cd2fef59 440extern struct cache_entry *index_name_exists(struct index_state *istate, const char *name, int namelen, int igncase);
d1f128b0 441extern int index_name_pos(const struct index_state *, const char *name, int namelen);
192268c1
JH
442#define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
443#define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
b155725d 444#define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
af3785dc 445#define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
39425819 446#define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */
4aab5b46 447extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option);
8fd2cb40 448extern struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really);
81dc2307 449extern void rename_index_entry_at(struct index_state *, int pos, const char *new_name);
4aab5b46 450extern int remove_index_entry_at(struct index_state *, int pos);
36419c8e 451extern void remove_marked_cache_entries(struct index_state *istate);
4aab5b46 452extern int remove_file_from_index(struct index_state *, const char *path);
38ed1d89
JH
453#define ADD_CACHE_VERBOSE 1
454#define ADD_CACHE_PRETEND 2
01665924 455#define ADD_CACHE_IGNORE_ERRORS 4
041aee31 456#define ADD_CACHE_IGNORE_REMOVAL 8
39425819 457#define ADD_CACHE_INTENT 16
38ed1d89
JH
458extern int add_to_index(struct index_state *, const char *path, struct stat *, int flags);
459extern int add_file_to_index(struct index_state *, const char *path, int flags);
6640f881 460extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, int refresh);
dbbce55b 461extern int ce_same_name(struct cache_entry *a, struct cache_entry *b);
98fa4738 462extern int index_name_is_other(const struct index_state *, const char *, int);
4bd5b7da
JH
463
464/* do stat comparison even if CE_VALID is true */
465#define CE_MATCH_IGNORE_VALID 01
466/* do not check the contents but report dirty on racily-clean entries */
467#define CE_MATCH_RACY_IS_DIRTY 02
d1f128b0
LT
468extern int ie_match_stat(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
469extern int ie_modified(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
4bd5b7da 470
c0fd1f51 471extern int ce_path_match(const struct cache_entry *ce, const char **pathspec);
53bca91a 472extern int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object, enum object_type type, const char *path);
ec1fcc16 473extern int index_path(unsigned char *sha1, const char *path, struct stat *st, int write_object);
415e96c8
JH
474extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
475
b6986d8a
LT
476/* "careful lstat()" */
477extern int check_path(const char *path, int len, struct stat *st);
478
405e5b2f
LT
479#define REFRESH_REALLY 0x0001 /* ignore_valid */
480#define REFRESH_UNMERGED 0x0002 /* allow unmerged */
481#define REFRESH_QUIET 0x0004 /* be quiet about it */
482#define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */
3f1b7b60 483#define REFRESH_IGNORE_SUBMODULES 0x0010 /* ignore submodules */
d14e7407 484#define REFRESH_SAY_CHANGED 0x0020 /* say "changed" not "needs update" */
d616813d 485extern int refresh_index(struct index_state *, unsigned int flags, const char **pathspec, char *seen);
405e5b2f 486
021b6e45
JH
487struct lock_file {
488 struct lock_file *next;
4723ee99 489 int fd;
5e635e39 490 pid_t owner;
1084b845 491 char on_list;
021b6e45 492 char filename[PATH_MAX];
415e96c8 493};
acd3b9ec
JH
494#define LOCK_DIE_ON_ERROR 1
495#define LOCK_NODEREF 2
e43a6fd3 496extern NORETURN void unable_to_lock_index_die(const char *path, int err);
40aaae88 497extern int hold_lock_file_for_update(struct lock_file *, const char *path, int);
ea3cd5c7 498extern int hold_lock_file_for_append(struct lock_file *, const char *path, int);
021b6e45 499extern int commit_lock_file(struct lock_file *);
30ca07a2
JH
500
501extern int hold_locked_index(struct lock_file *, int);
502extern int commit_locked_index(struct lock_file *);
5e7f56ac 503extern void set_alternate_index_output(const char *);
d6cf61bf 504extern int close_lock_file(struct lock_file *);
021b6e45 505extern void rollback_lock_file(struct lock_file *);
eca35a25 506extern int delete_ref(const char *, const unsigned char *sha1, int delopt);
734aab75 507
2ae1c53b 508/* Environment bits from configuration mechanism */
17712991 509extern int trust_executable_bit;
1ce4790b 510extern int trust_ctime;
9378c161 511extern int quote_path_fully;
78a8d641 512extern int has_symlinks;
0a9b88b7 513extern int ignore_case;
5f73076c 514extern int assume_unchanged;
9f0bb90d 515extern int prefer_symlink_refs;
6de08ae6 516extern int log_all_ref_updates;
2f8acdb3 517extern int warn_ambiguous_refs;
457f06d6 518extern int shared_repository;
2ae1c53b 519extern const char *apply_default_whitespace;
12f6c308 520extern int zlib_compression_level;
960ccca6
DH
521extern int core_compression_level;
522extern int core_compression_seen;
60bb8b14 523extern size_t packed_git_window_size;
77ccc5bb 524extern size_t packed_git_limit;
18bdec11 525extern size_t delta_base_cache_limit;
6c510bee 526extern int auto_crlf;
aafe9fba 527extern int fsync_object_files;
671c9b7e 528extern int core_preload_index;
17712991 529
21e5ad50
SP
530enum safe_crlf {
531 SAFE_CRLF_FALSE = 0,
532 SAFE_CRLF_FAIL = 1,
533 SAFE_CRLF_WARN = 2,
534};
535
536extern enum safe_crlf safe_crlf;
537
9ed36cfa 538enum branch_track {
9188ed89 539 BRANCH_TRACK_UNSPECIFIED = -1,
9ed36cfa
JS
540 BRANCH_TRACK_NEVER = 0,
541 BRANCH_TRACK_REMOTE,
542 BRANCH_TRACK_ALWAYS,
543 BRANCH_TRACK_EXPLICIT,
544};
545
c998ae9b
DS
546enum rebase_setup_type {
547 AUTOREBASE_NEVER = 0,
548 AUTOREBASE_LOCAL,
549 AUTOREBASE_REMOTE,
550 AUTOREBASE_ALWAYS,
551};
552
52153747 553enum push_default_type {
52153747
FAG
554 PUSH_DEFAULT_NOTHING = 0,
555 PUSH_DEFAULT_MATCHING,
556 PUSH_DEFAULT_TRACKING,
557 PUSH_DEFAULT_CURRENT,
558};
559
9ed36cfa 560extern enum branch_track git_branch_track;
c998ae9b 561extern enum rebase_setup_type autorebase;
52153747 562extern enum push_default_type push_default;
9ed36cfa 563
348df166
JS
564enum object_creation_mode {
565 OBJECT_CREATION_USES_HARDLINKS = 0,
566 OBJECT_CREATION_USES_RENAMES = 1,
567};
568
569extern enum object_creation_mode object_creation_mode;
be66a6c4 570
7f3140cd
JS
571extern int grafts_replace_parents;
572
ab9cb76f
JH
573#define GIT_REPO_VERSION 0
574extern int repository_format_version;
575extern int check_repository_format(void);
576
734aab75
LT
577#define MTIME_CHANGED 0x0001
578#define CTIME_CHANGED 0x0002
579#define OWNER_CHANGED 0x0004
580#define MODE_CHANGED 0x0008
581#define INODE_CHANGED 0x0010
582#define DATA_CHANGED 0x0020
8ae0a8c5 583#define TYPE_CHANGED 0x0040
e83c5163 584
108bebea
AR
585extern char *mksnpath(char *buf, size_t n, const char *fmt, ...)
586 __attribute__((format (printf, 3, 4)));
fe2d7776
AR
587extern char *git_snpath(char *buf, size_t n, const char *fmt, ...)
588 __attribute__((format (printf, 3, 4)));
aba13e7c
AR
589extern char *git_pathdup(const char *fmt, ...)
590 __attribute__((format (printf, 1, 2)));
108bebea 591
e83c5163 592/* Return a statically allocated filename matching the sha1 signature */
4ec99bf0
TS
593extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
594extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
73134b6d 595extern char *sha1_file_name(const unsigned char *sha1);
bf592c50
DB
596extern char *sha1_pack_name(const unsigned char *sha1);
597extern char *sha1_pack_index_name(const unsigned char *sha1);
013f276e 598extern const char *find_unique_abbrev(const unsigned char *sha1, int);
88cd621d 599extern const unsigned char null_sha1[20];
0bef57ee
DR
600static inline int is_null_sha1(const unsigned char *sha1)
601{
602 return !memcmp(sha1, null_sha1, 20);
603}
a89fccd2
DR
604static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
605{
606 return memcmp(sha1, sha2, 20);
607}
e702496e
SP
608static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
609{
610 memcpy(sha_dst, sha_src, 20);
611}
a8e0d16d
JH
612static inline void hashclr(unsigned char *hash)
613{
614 memset(hash, 0, 20);
615}
f55527f8 616extern int is_empty_blob_sha1(const unsigned char *sha1);
e83c5163 617
14d9c578
JK
618#define EMPTY_TREE_SHA1_HEX \
619 "4b825dc642cb6eb9a060e54bf8d69288fbee4904"
620#define EMPTY_TREE_SHA1_BIN \
621 "\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" \
622 "\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04"
623
f2db68ed
HE
624int git_mkstemp(char *path, size_t n, const char *template);
625
003b33a8
DA
626int git_mkstemps(char *path, size_t n, const char *template, int suffix_len);
627
06cbe855
HO
628/*
629 * NOTE NOTE NOTE!!
630 *
631 * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must
632 * not be changed. Old repositories have core.sharedrepository written in
633 * numeric format, and therefore these values are preserved for compatibility
634 * reasons.
635 */
94df2506 636enum sharedrepo {
06cbe855
HO
637 PERM_UMASK = 0,
638 OLD_PERM_GROUP = 1,
639 OLD_PERM_EVERYBODY = 2,
640 PERM_GROUP = 0660,
641 PERM_EVERYBODY = 0664,
94df2506
JH
642};
643int git_config_perm(const char *var, const char *value);
17e61b82
JH
644int set_shared_perm(const char *path, int mode);
645#define adjust_shared_perm(path) set_shared_perm((path), 0)
b2cb9425 646int safe_create_leading_directories(char *path);
8e21d63b 647int safe_create_leading_directories_const(const char *path);
bd22c904 648char *enter_repo(char *path, int strict);
e5392c51
JS
649static inline int is_absolute_path(const char *path)
650{
25fe217b 651 return path[0] == '/' || has_dos_drive_prefix(path);
e5392c51 652}
90b4a71c 653int is_directory(const char *);
e5392c51 654const char *make_absolute_path(const char *path);
1b9a9467 655const char *make_nonrelative_path(const char *path);
044bbbcb 656const char *make_relative_path(const char *abs, const char *base);
f3cad0ad 657int normalize_path_copy(char *dst, const char *src);
0454dd93 658int longest_ancestor_length(const char *path, const char *prefix_list);
4fcc86b0 659char *strip_path_suffix(const char *path, const char *suffix);
b2cb9425 660
e83c5163 661/* Read and unpack a sha1 file into memory, write memory to a sha1 file */
21666f1a 662extern int sha1_object_info(const unsigned char *, unsigned long *);
21666f1a 663extern void * read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size);
ce9fbf16 664extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1);
bf0f910d 665extern int write_sha1_file(void *buf, unsigned long len, const char *type, unsigned char *return_sha1);
21666f1a 666extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *);
bbac7311 667extern int force_object_loose(const unsigned char *sha1, time_t mtime);
8237b185 668
0e8189e2
NP
669/* global flag to enable extra checks when accessing packed objects */
670extern int do_check_packed_object_crc;
671
5d6ccf5c 672extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type);
e83c5163 673
839837b9 674extern int move_temp_to_file(const char *tmpfile, const char *filename);
8237b185 675
cd673c1f 676extern int has_sha1_pack(const unsigned char *sha1);
8237b185 677extern int has_sha1_file(const unsigned char *sha1);
0f4dc14a 678extern int has_loose_object_nonlocal(const unsigned char *sha1);
8237b185 679
bf592c50
DB
680extern int has_pack_file(const unsigned char *sha1);
681extern int has_pack_index(const unsigned char *sha1);
682
192a6be2
LT
683extern const signed char hexval_table[256];
684static inline unsigned int hexval(unsigned char c)
e49521b5
JH
685{
686 return hexval_table[c];
687}
688
e83c5163 689/* Convert to/from hex/sha1 representation */
46a6c262
JH
690#define MINIMUM_ABBREV 4
691#define DEFAULT_ABBREV 7
692
3c249c95 693extern int get_sha1(const char *str, unsigned char *sha1);
a0cd87a5 694extern int get_sha1_with_mode(const char *str, unsigned char *sha1, unsigned *mode);
197ee8c9
LT
695extern int get_sha1_hex(const char *hex, unsigned char *sha1);
696extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
ca8db142 697extern int read_ref(const char *filename, unsigned char *sha1);
8da19775 698extern const char *resolve_ref(const char *path, unsigned char *sha1, int, int *);
e86eb666 699extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref);
eb3a4822 700extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref);
431b1969 701extern int interpret_branch_name(const char *str, struct strbuf *);
e86eb666 702
79803322
SP
703extern int refname_match(const char *abbrev_name, const char *full_name, const char **rules);
704extern const char *ref_rev_parse_rules[];
605b4978 705extern const char *ref_fetch_rules[];
79803322 706
8b5157e4 707extern int create_symref(const char *ref, const char *refs_heads_master, const char *logmsg);
c847f537 708extern int validate_headref(const char *ref);
e83c5163 709
958ba6c9 710extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
0ab9e1e8 711extern int df_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
79517a06 712extern int cache_name_compare(const char *name1, int len1, const char *name2, int len2);
e83c5163 713
40469ee9 714extern void *read_object_with_reference(const unsigned char *sha1,
bf0f910d 715 const char *required_type,
40469ee9
JH
716 unsigned long *size,
717 unsigned char *sha1_ret);
f4913f91 718
81776315
JH
719extern struct object *peel_to_type(const char *name, int namelen,
720 struct object *o, enum object_type);
721
73013afd
JH
722enum date_mode {
723 DATE_NORMAL = 0,
724 DATE_RELATIVE,
725 DATE_SHORT,
726 DATE_LOCAL,
727 DATE_ISO8601,
7dff9b30
LT
728 DATE_RFC2822,
729 DATE_RAW
73013afd
JH
730};
731
f8493ec0 732const char *show_date(unsigned long time, int timezone, enum date_mode mode);
2a39064c 733int parse_date(const char *date, char *buf, int bufsize);
ecee9d9e 734void datestamp(char *buf, int bufsize);
3c07b1d1 735unsigned long approxidate(const char *);
856665f8 736enum date_mode parse_date_format(const char *format);
ecee9d9e 737
774751a8
JH
738#define IDENT_WARN_ON_NO_NAME 1
739#define IDENT_ERROR_ON_NO_NAME 2
740#define IDENT_NO_DATE 4
749be728
JH
741extern const char *git_author_info(int);
742extern const char *git_committer_info(int);
798123af 743extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int);
d9ccfe77 744extern const char *fmt_name(const char *name, const char *email);
6aa33f40 745
12dccc16
LT
746struct checkout {
747 const char *base_dir;
748 int base_dir_len;
749 unsigned force:1,
750 quiet:1,
751 not_new:1,
752 refresh_cache:1;
753};
754
efbc5831 755extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath);
b9fd2846
LT
756
757struct cache_def {
758 char path[PATH_MAX + 1];
759 int len;
760 int flags;
761 int track_flags;
762 int prefix_len_stat_func;
763};
764
57199892 765extern int has_symlink_leading_path(const char *name, int len);
b9fd2846 766extern int threaded_has_symlink_leading_path(struct cache_def *, const char *, int);
57199892
KB
767extern int has_symlink_or_noent_leading_path(const char *name, int len);
768extern int has_dirs_only_path(const char *name, int len, int prefix_len);
769extern void invalidate_lstat_cache(const char *name, int len);
bda6eb0d 770extern void clear_lstat_cache(void);
78478927
KB
771extern void schedule_dir_for_removal(const char *name, int len);
772extern void remove_scheduled_dirs(void);
12dccc16 773
9a217f2a 774extern struct alternate_object_database {
d5a63b99 775 struct alternate_object_database *next;
9a217f2a 776 char *name;
8f1d2e6f 777 char base[FLEX_ARRAY]; /* more */
d5a63b99 778} *alt_odb_list;
9a217f2a 779extern void prepare_alt_odb(void);
bef70b22 780extern void add_to_alternates_file(const char *reference);
d79796bc
JH
781typedef int alt_odb_fn(struct alternate_object_database *, void *);
782extern void foreach_alt_odb(alt_odb_fn, void*);
9a217f2a 783
c41ee586
SP
784struct pack_window {
785 struct pack_window *next;
786 unsigned char *base;
787 off_t offset;
788 size_t len;
789 unsigned int last_used;
790 unsigned int inuse_cnt;
791};
792
9a217f2a
JH
793extern struct packed_git {
794 struct packed_git *next;
c41ee586 795 struct pack_window *windows;
2dc3a234 796 off_t pack_size;
57059091
NP
797 const void *index_data;
798 size_t index_size;
799 uint32_t num_objects;
8eca0b47
NP
800 uint32_t num_bad_objects;
801 unsigned char *bad_object_sha1;
42873078 802 int index_version;
57059091 803 time_t mtime;
9bc879c1 804 int pack_fd;
8d25931d
BC
805 unsigned pack_local:1,
806 pack_keep:1;
bf592c50 807 unsigned char sha1[20];
8f1d2e6f
JH
808 /* something like ".git/objects/pack/xxxxx.pack" */
809 char pack_name[FLEX_ARRAY]; /* more */
9a217f2a 810} *packed_git;
f3bf9224
JH
811
812struct pack_entry {
c4001d92 813 off_t offset;
f3bf9224
JH
814 unsigned char sha1[20];
815 struct packed_git *p;
816};
817
d1c133f5
LT
818struct ref {
819 struct ref *next;
820 unsigned char old_sha1[20];
821 unsigned char new_sha1[20];
be885d96 822 char *symref;
9f8a15c7
SP
823 unsigned int force:1,
824 merge:1,
825 nonfastforward:1,
826 deletion:1;
8736a848
JK
827 enum {
828 REF_STATUS_NONE = 0,
829 REF_STATUS_OK,
830 REF_STATUS_REJECT_NONFASTFORWARD,
831 REF_STATUS_REJECT_NODELETE,
832 REF_STATUS_UPTODATE,
ca74c458 833 REF_STATUS_REMOTE_REJECT,
2a0fe89a 834 REF_STATUS_EXPECTING_REPORT,
8736a848 835 } status;
2a0fe89a 836 char *remote_status;
f88395ac 837 struct ref *peer_ref; /* when renaming */
8f1d2e6f 838 char name[FLEX_ARRAY]; /* more */
d1c133f5
LT
839};
840
2718ff09
LT
841#define REF_NORMAL (1u << 0)
842#define REF_HEADS (1u << 1)
843#define REF_TAGS (1u << 2)
844
5483f799 845extern struct ref *find_ref_by_name(const struct ref *list, const char *name);
cda69f48 846
7841ce79 847#define CONNECT_VERBOSE (1u << 0)
4577370e 848extern struct child_process *git_connect(int fd[2], const char *url, const char *prog, int flags);
98158e9c 849extern int finish_connect(struct child_process *conn);
013e7c7f 850extern int path_match(const char *path, int nr, char **match);
41cb7488 851extern int get_ack(int fd, unsigned char *result_sha1);
40c155ff
JH
852struct extra_have_objects {
853 int nr, alloc;
854 unsigned char (*array)[20];
855};
856extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, unsigned int flags, struct extra_have_objects *);
211b5f9e 857extern int server_supports(const char *feature);
f7192598 858
bf592c50
DB
859extern struct packed_git *parse_pack_index(unsigned char *sha1);
860
9a217f2a 861extern void prepare_packed_git(void);
fc04c412 862extern void reprepare_packed_git(void);
bf592c50
DB
863extern void install_packed_git(struct packed_git *pack);
864
a6080a0a 865extern struct packed_git *find_sha1_pack(const unsigned char *sha1,
bf592c50
DB
866 struct packed_git *packs);
867
276bc2ca 868extern void pack_report(void);
d079837e 869extern int open_pack_index(struct packed_git *);
4b25d091 870extern unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned int *);
c9ced051 871extern void close_pack_windows(struct packed_git *);
03e79c88 872extern void unuse_pack(struct pack_window **);
c74faea1 873extern void free_pack_by_name(const char *);
3d20c636 874extern void clear_delta_base_cache(void);
42873078 875extern struct packed_git *add_packed_git(const char *, int, int);
d079837e 876extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t);
99093238 877extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t);
c4001d92
SP
878extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *);
879extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *);
09ded04b 880extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep);
54dab52a 881extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t);
c4001d92 882extern const char *packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *);
9a217f2a 883
8f3f9b09
JH
884/* Dumb servers support */
885extern int update_server_info(int);
886
ef90d6d4
JS
887typedef int (*config_fn_t)(const char *, const char *, void *);
888extern int git_default_config(const char *, const char *, void *);
889extern int git_config_from_file(config_fn_t fn, const char *, void *);
890extern int git_config(config_fn_t fn, void *);
0b87b6e0 891extern int git_parse_ulong(const char *, unsigned long *);
17712991 892extern int git_config_int(const char *, const char *);
0b87b6e0 893extern unsigned long git_config_ulong(const char *, const char *);
a53f2ec6 894extern int git_config_bool_or_int(const char *, const char *, int *);
17712991 895extern int git_config_bool(const char *, const char *);
ea5105a5 896extern int git_config_string(const char **, const char *, const char *);
10bea152 897extern int git_config_set(const char *, const char *);
4ddba79d 898extern int git_config_set_multivar(const char *, const char *, const char *, int);
0667fcfb 899extern int git_config_rename_section(const char *, const char *);
506b17b1 900extern const char *git_etc_gitconfig(void);
ef90d6d4 901extern int check_repository_format_version(const char *var, const char *value, void *cb);
ab88c363
JK
902extern int git_config_system(void);
903extern int git_config_global(void);
40ea4ed9 904extern int config_error_nonbool(const char *);
dc871831 905extern const char *config_exclusive_filename;
17712991 906
e1b10391
LT
907#define MAX_GITNAME (1000)
908extern char git_default_email[MAX_GITNAME];
909extern char git_default_name[MAX_GITNAME];
bb1ae3f6 910extern int user_ident_explicitly_given;
e1b10391 911
1a8f2741 912extern const char *git_commit_encoding;
3a55602e 913extern const char *git_log_output_encoding;
d551a488 914extern const char *git_mailmap_file;
4e72dcec 915
06f59e9f
TT
916/* IO helper functions */
917extern void maybe_flush_or_die(FILE *, const char *);
f3123c4a 918extern int copy_fd(int ifd, int ofd);
1468bd47 919extern int copy_file(const char *dst, const char *src, int mode);
0104ca09
HO
920extern ssize_t read_in_full(int fd, void *buf, size_t count);
921extern ssize_t write_in_full(int fd, const void *buf, size_t count);
7230e6d0 922extern void write_or_die(int fd, const void *buf, size_t count);
6ce4e61f 923extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg);
e0814056 924extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg);
4c81b03e 925extern void fsync_or_die(int fd, const char *);
ad897215 926
f67b45f8
LT
927/* pager.c */
928extern void setup_pager(void);
872da32d 929extern const char *pager_program;
6e9af863 930extern int pager_in_use(void);
aa086eb8 931extern int pager_use_color;
f67b45f8 932
ee9601e6 933extern const char *editor_program;
dfb068be 934extern const char *excludes_file;
4d87b9c5 935
051308f6 936/* base85 */
f9815772
JM
937int decode_85(char *dst, const char *line, int linelen);
938void encode_85(char *buf, const unsigned char *data, int bytes);
051308f6 939
855419f7 940/* alloc.c */
100c5f3b
LT
941extern void *alloc_blob_node(void);
942extern void *alloc_tree_node(void);
943extern void *alloc_commit_node(void);
944extern void *alloc_tag_node(void);
945extern void *alloc_object_node(void);
855419f7
LT
946extern void alloc_report(void);
947
6ce4e61f 948/* trace.c */
6ce4e61f 949extern void trace_printf(const char *format, ...);
b319ce4c 950extern void trace_argv_printf(const char **argv, const char *format, ...);
6ce4e61f 951
6c510bee 952/* convert.c */
5ecd293d 953/* returns 1 if *dst was used */
21e5ad50
SP
954extern int convert_to_git(const char *path, const char *src, size_t len,
955 struct strbuf *dst, enum safe_crlf checksafe);
5ecd293d 956extern int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst);
6c510bee 957
b6ec1d61 958/* add */
7ae02a30
AR
959/*
960 * return 0 if success, 1 - if addition of a file failed and
961 * ADD_FILES_IGNORE_ERRORS was specified in flags
962 */
963int add_files_to_cache(const char *prefix, const char **pathspec, int flags);
b6ec1d61 964
aecbf914
JH
965/* diff.c */
966extern int diff_auto_refresh_index;
967
68faf689
JH
968/* match-trees.c */
969void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
970
a9cc857a
JH
971/*
972 * whitespace rules.
973 * used by both diff and apply
974 */
975#define WS_TRAILING_SPACE 01
976#define WS_SPACE_BEFORE_TAB 02
459fa6d0 977#define WS_INDENT_WITH_NON_TAB 04
b2979ff5 978#define WS_CR_AT_EOL 010
a9cc857a 979#define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB)
cf1b7869
JH
980extern unsigned whitespace_rule_cfg;
981extern unsigned whitespace_rule(const char *);
982extern unsigned parse_whitespace_rule(const char *);
8f8841e9
JH
983extern unsigned ws_check(const char *line, int len, unsigned ws_rule);
984extern void ws_check_emit(const char *line, int len, unsigned ws_rule, FILE *stream, const char *set, const char *reset, const char *ws);
c1795bb0 985extern char *whitespace_error_string(unsigned ws);
fe3403c3 986extern int ws_fix_copy(char *, const char *, int, unsigned, int *);
877f23cc 987extern int ws_blank_line(const char *line, int len, unsigned ws_rule);
a9cc857a 988
ee425e46 989/* ls-files */
ee425e46
JH
990int report_path_error(const char *ps_matched, const char **pathspec, int prefix_offset);
991void overlay_tree_on_cache(const char *tree_name, const char *prefix);
992
94351118 993char *alias_lookup(const char *alias);
0989fe96 994int split_cmdline(char *cmdline, const char ***argv);
94351118 995
e83c5163 996#endif /* CACHE_H */