resolve-undo: "checkout -m path" uses resolve-undo information
[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"
75194438 7#include "advice.h"
e83c5163 8
cef661fc 9#include SHA1_HEADER
9126f009
NP
10#ifndef git_SHA_CTX
11#define git_SHA_CTX SHA_CTX
12#define git_SHA1_Init SHA1_Init
13#define git_SHA1_Update SHA1_Update
14#define git_SHA1_Final SHA1_Final
15#endif
e83c5163 16
9126f009 17#include <zlib.h>
609a2289 18#if defined(NO_DEFLATE_BOUND) || ZLIB_VERNUM < 0x1200
9da3acfb
ET
19#define deflateBound(c,s) ((s) + (((s) + 7) >> 3) + (((s) + 63) >> 6) + 11)
20#endif
21
39c68542
LT
22void git_inflate_init(z_streamp strm);
23void git_inflate_end(z_streamp strm);
24int git_inflate(z_streamp strm, int flush);
25
962554c6 26#if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT)
b6829693
ET
27#define DTYPE(de) ((de)->d_type)
28#else
0bdd79af
JH
29#undef DT_UNKNOWN
30#undef DT_DIR
31#undef DT_REG
32#undef DT_LNK
b6829693
ET
33#define DT_UNKNOWN 0
34#define DT_DIR 1
35#define DT_REG 2
a15c1c60 36#define DT_LNK 3
b6829693
ET
37#define DTYPE(de) DT_UNKNOWN
38#endif
39
40689ae1
MK
40/* unknown mode (impossible combination S_IFIFO|S_IFCHR) */
41#define S_IFINVALID 0030000
42
9eec4795
LT
43/*
44 * A "directory link" is a link to another git directory.
45 *
46 * The value 0160000 is not normally a valid mode, and
47 * also just happens to be S_IFDIR + S_IFLNK
48 *
49 * NOTE! We *really* shouldn't depend on the S_IFxxx macros
50 * always having the same values everywhere. We should use
51 * our internal git values for these things, and then we can
52 * translate that to the OS-specific value. It just so
53 * happens that everybody shares the same bit representation
54 * in the UNIX world (and apparently wider too..)
55 */
302b9282
MW
56#define S_IFGITLINK 0160000
57#define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK)
9eec4795 58
2386d658
LT
59/*
60 * Intensive research over the course of many years has shown that
61 * port 9418 is totally unused by anything else. Or
62 *
63 * Your search - "port 9418" - did not match any documents.
64 *
65 * as www.google.com puts it.
ba8a4970
LT
66 *
67 * This port has been properly assigned for git use by IANA:
68 * git (Assigned-9418) [I06-050728-0001].
69 *
70 * git 9418/tcp git pack transfer service
71 * git 9418/udp git pack transfer service
72 *
73 * with Linus Torvalds <torvalds@osdl.org> as the point of
74 * contact. September 2005.
75 *
76 * See http://www.iana.org/assignments/port-numbers
2386d658
LT
77 */
78#define DEFAULT_GIT_PORT 9418
79
e83c5163
LT
80/*
81 * Basic data structures for the directory cache
e83c5163
LT
82 */
83
84#define CACHE_SIGNATURE 0x44495243 /* "DIRC" */
85struct cache_header {
ccc4feb5
LT
86 unsigned int hdr_signature;
87 unsigned int hdr_version;
88 unsigned int hdr_entries;
e83c5163
LT
89};
90
91/*
92 * The "cache_time" is just the low 32 bits of the
93 * time. It doesn't matter if it overflows - we only
94 * check it for equality in the 32 bits we save.
95 */
96struct cache_time {
97 unsigned int sec;
98 unsigned int nsec;
99};
100
101/*
102 * dev/ino/uid/gid/size are also just tracked to the low 32 bits
103 * Again - this is just a (very strong in practice) heuristic that
104 * the inode hasn't changed.
ccc4feb5
LT
105 *
106 * We save the fields in big-endian order to allow using the
107 * index file over NFS transparently.
e83c5163 108 */
7a51ed66
LT
109struct ondisk_cache_entry {
110 struct cache_time ctime;
111 struct cache_time mtime;
112 unsigned int dev;
113 unsigned int ino;
114 unsigned int mode;
115 unsigned int uid;
116 unsigned int gid;
117 unsigned int size;
118 unsigned char sha1[20];
119 unsigned short flags;
120 char name[FLEX_ARRAY]; /* more */
121};
122
06aaaa0b
NTND
123/*
124 * This struct is used when CE_EXTENDED bit is 1
125 * The struct must match ondisk_cache_entry exactly from
126 * ctime till flags
127 */
128struct ondisk_cache_entry_extended {
129 struct cache_time ctime;
130 struct cache_time mtime;
131 unsigned int dev;
132 unsigned int ino;
133 unsigned int mode;
134 unsigned int uid;
135 unsigned int gid;
136 unsigned int size;
137 unsigned char sha1[20];
138 unsigned short flags;
139 unsigned short flags2;
140 char name[FLEX_ARRAY]; /* more */
141};
142
e83c5163 143struct cache_entry {
fba2f38a
KB
144 struct cache_time ce_ctime;
145 struct cache_time ce_mtime;
ccc4feb5
LT
146 unsigned int ce_dev;
147 unsigned int ce_ino;
148 unsigned int ce_mode;
149 unsigned int ce_uid;
150 unsigned int ce_gid;
151 unsigned int ce_size;
7a51ed66 152 unsigned int ce_flags;
e83c5163 153 unsigned char sha1[20];
eb7a2f1d 154 struct cache_entry *next;
8f1d2e6f 155 char name[FLEX_ARRAY]; /* more */
e83c5163
LT
156};
157
95fd5bf8
LT
158#define CE_NAMEMASK (0x0fff)
159#define CE_STAGEMASK (0x3000)
16ce2e4c 160#define CE_EXTENDED (0x4000)
5f73076c 161#define CE_VALID (0x8000)
aee46198 162#define CE_STAGESHIFT 12
95fd5bf8 163
06aaaa0b
NTND
164/*
165 * Range 0xFFFF0000 in ce_flags is divided into
166 * two parts: in-memory flags and on-disk ones.
167 * Flags in CE_EXTENDED_FLAGS will get saved on-disk
168 * if you want to save a new flag, add it in
169 * CE_EXTENDED_FLAGS
170 *
171 * In-memory only flags
172 */
7a51ed66
LT
173#define CE_UPDATE (0x10000)
174#define CE_REMOVE (0x20000)
eadb5831 175#define CE_UPTODATE (0x40000)
1102952b 176#define CE_ADDED (0x80000)
a22c6371
LT
177
178#define CE_HASHED (0x100000)
179#define CE_UNHASHED (0x200000)
7a51ed66 180
06aaaa0b
NTND
181/*
182 * Extended on-disk flags
183 */
388b2acd 184#define CE_INTENT_TO_ADD 0x20000000
06aaaa0b
NTND
185/* CE_EXTENDED2 is for future extension */
186#define CE_EXTENDED2 0x80000000
187
388b2acd 188#define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD)
06aaaa0b
NTND
189
190/*
191 * Safeguard to avoid saving wrong flags:
192 * - CE_EXTENDED2 won't get saved until its semantic is known
193 * - Bits in 0x0000FFFF have been saved in ce_flags already
194 * - Bits in 0x003F0000 are currently in-memory flags
195 */
196#if CE_EXTENDED_FLAGS & 0x803FFFFF
197#error "CE_EXTENDED_FLAGS out of range"
198#endif
199
eb7a2f1d
LT
200/*
201 * Copy the sha1 and stat state of a cache entry from one to
202 * another. But we never change the name, or the hash state!
203 */
204#define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)
205static inline void copy_cache_entry(struct cache_entry *dst, struct cache_entry *src)
206{
207 unsigned int state = dst->ce_flags & CE_STATE_MASK;
208
209 /* Don't copy hash chain and name */
210 memcpy(dst, src, offsetof(struct cache_entry, next));
211
212 /* Restore the hash state */
213 dst->ce_flags = (dst->ce_flags & ~CE_STATE_MASK) | state;
214}
215
7fec10b7
JH
216static inline unsigned create_ce_flags(size_t len, unsigned stage)
217{
218 if (len >= CE_NAMEMASK)
219 len = CE_NAMEMASK;
220 return (len | (stage << CE_STAGESHIFT));
221}
222
223static inline size_t ce_namelen(const struct cache_entry *ce)
224{
225 size_t len = ce->ce_flags & CE_NAMEMASK;
226 if (len < CE_NAMEMASK)
227 return len;
228 return strlen(ce->name + CE_NAMEMASK) + CE_NAMEMASK;
229}
230
aee46198 231#define ce_size(ce) cache_entry_size(ce_namelen(ce))
06aaaa0b
NTND
232#define ondisk_ce_size(ce) (((ce)->ce_flags & CE_EXTENDED) ? \
233 ondisk_cache_entry_extended_size(ce_namelen(ce)) : \
234 ondisk_cache_entry_size(ce_namelen(ce)))
7a51ed66 235#define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT)
eadb5831
JH
236#define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE)
237#define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE)
aee46198 238
e4479470 239#define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644)
8ae0a8c5
KS
240static inline unsigned int create_ce_mode(unsigned int mode)
241{
8ae0a8c5 242 if (S_ISLNK(mode))
7a51ed66 243 return S_IFLNK;
302b9282 244 if (S_ISDIR(mode) || S_ISGITLINK(mode))
7a51ed66
LT
245 return S_IFGITLINK;
246 return S_IFREG | ce_permissions(mode);
8ae0a8c5 247}
185c975f
JH
248static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned int mode)
249{
78a8d641
JS
250 extern int trust_executable_bit, has_symlinks;
251 if (!has_symlinks && S_ISREG(mode) &&
7a51ed66 252 ce && S_ISLNK(ce->ce_mode))
78a8d641 253 return ce->ce_mode;
185c975f 254 if (!trust_executable_bit && S_ISREG(mode)) {
7a51ed66 255 if (ce && S_ISREG(ce->ce_mode))
185c975f
JH
256 return ce->ce_mode;
257 return create_ce_mode(0666);
258 }
259 return create_ce_mode(mode);
260}
d6b8fc30
JH
261static inline int ce_to_dtype(const struct cache_entry *ce)
262{
263 unsigned ce_mode = ntohl(ce->ce_mode);
264 if (S_ISREG(ce_mode))
265 return DT_REG;
266 else if (S_ISDIR(ce_mode) || S_ISGITLINK(ce_mode))
267 return DT_DIR;
268 else if (S_ISLNK(ce_mode))
269 return DT_LNK;
270 else
271 return DT_UNKNOWN;
272}
1b0c7174
JH
273#define canon_mode(mode) \
274 (S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \
302b9282 275 S_ISLNK(mode) ? S_IFLNK : S_ISDIR(mode) ? S_IFDIR : S_IFGITLINK)
e4479470 276
06aaaa0b
NTND
277#define flexible_size(STRUCT,len) ((offsetof(struct STRUCT,name) + (len) + 8) & ~7)
278#define cache_entry_size(len) flexible_size(cache_entry,len)
279#define ondisk_cache_entry_size(len) flexible_size(ondisk_cache_entry,len)
280#define ondisk_cache_entry_extended_size(len) flexible_size(ondisk_cache_entry_extended,len)
f5cabd13 281
228e94f9
JH
282struct index_state {
283 struct cache_entry **cache;
284 unsigned int cache_nr, cache_alloc, cache_changed;
cfc5789a 285 struct string_list *resolve_undo;
228e94f9 286 struct cache_tree *cache_tree;
fba2f38a 287 struct cache_time timestamp;
7a51ed66 288 void *alloc;
913e0e99
JH
289 unsigned name_hash_initialized : 1,
290 initialized : 1;
cf558704 291 struct hash_table name_hash;
228e94f9
JH
292};
293
294extern struct index_state the_index;
295
96872bc2
LT
296/* Name hashing */
297extern void add_name_hash(struct index_state *istate, struct cache_entry *ce);
298/*
299 * We don't actually *remove* it, we can just mark it invalid so that
300 * we won't find it in lookups.
301 *
302 * Not only would we have to search the lists (simple enough), but
303 * we'd also have to rehash other hash buckets in case this makes the
304 * hash bucket empty (common). So it's much better to just mark
305 * it.
306 */
307static inline void remove_name_hash(struct cache_entry *ce)
308{
309 ce->ce_flags |= CE_UNHASHED;
310}
311
312
4aab5b46 313#ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
228e94f9
JH
314#define active_cache (the_index.cache)
315#define active_nr (the_index.cache_nr)
316#define active_alloc (the_index.cache_alloc)
317#define active_cache_changed (the_index.cache_changed)
318#define active_cache_tree (the_index.cache_tree)
e83c5163 319
4aab5b46
JH
320#define read_cache() read_index(&the_index)
321#define read_cache_from(path) read_index_from(&the_index, (path))
671c9b7e 322#define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec))
fa7b3c2f 323#define is_cache_unborn() is_index_unborn(&the_index)
e46bbcf6 324#define read_cache_unmerged() read_index_unmerged(&the_index)
4aab5b46
JH
325#define write_cache(newfd, cache, entries) write_index(&the_index, (newfd))
326#define discard_cache() discard_index(&the_index)
94a5728c 327#define unmerged_cache() unmerged_index(&the_index)
4aab5b46
JH
328#define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen))
329#define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option))
81dc2307 330#define rename_cache_entry_at(pos, new_name) rename_index_entry_at(&the_index, (pos), (new_name))
4aab5b46
JH
331#define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos))
332#define remove_file_from_cache(path) remove_file_from_index(&the_index, (path))
38ed1d89
JH
333#define add_to_cache(path, st, flags) add_to_index(&the_index, (path), (st), (flags))
334#define add_file_to_cache(path, flags) add_file_to_index(&the_index, (path), (flags))
3deffc52 335#define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL)
4bd5b7da
JH
336#define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options))
337#define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
cd2fef59 338#define cache_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase))
98fa4738 339#define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen))
cfc5789a 340#define resolve_undo_clear() resolve_undo_clear_index(&the_index)
4421a823 341#define unmerge_cache(pathspec) unmerge_index(&the_index, pathspec)
4aab5b46 342#endif
e83c5163 343
edaec3fb
JH
344enum object_type {
345 OBJ_BAD = -1,
346 OBJ_NONE = 0,
347 OBJ_COMMIT = 1,
348 OBJ_TREE = 2,
349 OBJ_BLOB = 3,
350 OBJ_TAG = 4,
351 /* 5 for future expansion */
352 OBJ_OFS_DELTA = 6,
353 OBJ_REF_DELTA = 7,
355885d5 354 OBJ_ANY,
edaec3fb
JH
355 OBJ_MAX,
356};
357
b45563a2
JH
358static inline enum object_type object_type(unsigned int mode)
359{
360 return S_ISDIR(mode) ? OBJ_TREE :
361 S_ISGITLINK(mode) ? OBJ_COMMIT :
362 OBJ_BLOB;
363}
364
8ac069ac 365#define GIT_DIR_ENVIRONMENT "GIT_DIR"
892c41b9 366#define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
8ac069ac 367#define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
d19938ab 368#define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
bb233d69 369#define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
5da5c8f4 370#define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
d4ebc36c
JH
371#define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR"
372#define CONFIG_ENVIRONMENT "GIT_CONFIG"
d4ebc36c 373#define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH"
0454dd93 374#define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES"
6476b38b 375#define NO_REPLACE_OBJECTS_ENVIRONMENT "GIT_NO_REPLACE_OBJECTS"
d0bfd026
JH
376#define GITATTRIBUTES_FILE ".gitattributes"
377#define INFOATTRIBUTES_FILE "info/attributes"
f48fd688 378#define ATTRIBUTE_MACRO_PREFIX "[attr]"
a97a7468
JS
379#define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF"
380#define GIT_NOTES_DEFAULT_REF "refs/notes/commits"
bb233d69 381
7d1864ce
JH
382extern int is_bare_repository_cfg;
383extern int is_bare_repository(void);
68025633 384extern int is_inside_git_dir(void);
e90fdc39 385extern char *git_work_tree_cfg;
892c41b9 386extern int is_inside_work_tree(void);
d2b0708e 387extern int have_git_dir(void);
c5fba16c 388extern const char *get_git_dir(void);
8ac069ac
JH
389extern char *get_object_directory(void);
390extern char *get_index_file(void);
5da5c8f4 391extern char *get_graft_file(void);
d7ac12b2 392extern int set_git_dir(const char *path);
e90fdc39 393extern const char *get_git_work_tree(void);
b44ebb19 394extern const char *read_gitfile_gently(const char *path);
19757d80 395extern void set_git_work_tree(const char *tree);
8ac069ac
JH
396
397#define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
bb233d69 398
6b5ee137 399extern const char **get_pathspec(const char *prefix, const char **pathspec);
59f0f2f3 400extern void setup_work_tree(void);
4ca06608 401extern const char *setup_git_directory_gently(int *);
d288a700 402extern const char *setup_git_directory(void);
6b5ee137 403extern const char *prefix_path(const char *prefix, int len, const char *path);
4ca06608 404extern const char *prefix_filename(const char *prefix, int len, const char *path);
c6e8c800 405extern int check_filename(const char *prefix, const char *name);
e23d0b4a 406extern void verify_filename(const char *prefix, const char *name);
ea92f41f 407extern void verify_non_filename(const char *prefix, const char *name);
d288a700 408
f225aeb2
DB
409#define INIT_DB_QUIET 0x0001
410
411extern int init_db(const char *template_dir, unsigned int flags);
412
e83c5163
LT
413#define alloc_nr(x) (((x)+16)*3/2)
414
6815e569
JK
415/*
416 * Realloc the buffer pointed at by variable 'x' so that it can hold
417 * at least 'nr' entries; the number of entries currently allocated
418 * is 'alloc', using the standard growing factor alloc_nr() macro.
419 *
420 * DO NOT USE any expression with side-effect for 'x' or 'alloc'.
421 */
422#define ALLOC_GROW(x, nr, alloc) \
423 do { \
c927e6c6 424 if ((nr) > alloc) { \
4234a761
JH
425 if (alloc_nr(alloc) < (nr)) \
426 alloc = (nr); \
427 else \
428 alloc = alloc_nr(alloc); \
6815e569
JK
429 x = xrealloc((x), alloc * sizeof(*(x))); \
430 } \
431 } while(0)
432
734aab75 433/* Initialize and use the cache information */
4aab5b46 434extern int read_index(struct index_state *);
671c9b7e 435extern int read_index_preload(struct index_state *, const char **pathspec);
4aab5b46 436extern int read_index_from(struct index_state *, const char *path);
fa7b3c2f 437extern int is_index_unborn(struct index_state *);
e46bbcf6 438extern int read_index_unmerged(struct index_state *);
e1afca4f 439extern int write_index(struct index_state *, int newfd);
4aab5b46 440extern int discard_index(struct index_state *);
d1f128b0 441extern int unmerged_index(const struct index_state *);
8dcf39c4 442extern int verify_path(const char *path);
cd2fef59 443extern struct cache_entry *index_name_exists(struct index_state *istate, const char *name, int namelen, int igncase);
d1f128b0 444extern int index_name_pos(const struct index_state *, const char *name, int namelen);
192268c1
JH
445#define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
446#define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
b155725d 447#define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
af3785dc 448#define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
39425819 449#define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */
4aab5b46 450extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option);
8fd2cb40 451extern struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really);
81dc2307 452extern void rename_index_entry_at(struct index_state *, int pos, const char *new_name);
4aab5b46 453extern int remove_index_entry_at(struct index_state *, int pos);
36419c8e 454extern void remove_marked_cache_entries(struct index_state *istate);
4aab5b46 455extern int remove_file_from_index(struct index_state *, const char *path);
38ed1d89
JH
456#define ADD_CACHE_VERBOSE 1
457#define ADD_CACHE_PRETEND 2
01665924 458#define ADD_CACHE_IGNORE_ERRORS 4
041aee31 459#define ADD_CACHE_IGNORE_REMOVAL 8
39425819 460#define ADD_CACHE_INTENT 16
38ed1d89
JH
461extern int add_to_index(struct index_state *, const char *path, struct stat *, int flags);
462extern int add_file_to_index(struct index_state *, const char *path, int flags);
6640f881 463extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, int refresh);
dbbce55b 464extern int ce_same_name(struct cache_entry *a, struct cache_entry *b);
98fa4738 465extern int index_name_is_other(const struct index_state *, const char *, int);
4bd5b7da
JH
466
467/* do stat comparison even if CE_VALID is true */
468#define CE_MATCH_IGNORE_VALID 01
469/* do not check the contents but report dirty on racily-clean entries */
470#define CE_MATCH_RACY_IS_DIRTY 02
d1f128b0
LT
471extern int ie_match_stat(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
472extern int ie_modified(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
4bd5b7da 473
c0fd1f51 474extern int ce_path_match(const struct cache_entry *ce, const char **pathspec);
53bca91a 475extern int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object, enum object_type type, const char *path);
ec1fcc16 476extern int index_path(unsigned char *sha1, const char *path, struct stat *st, int write_object);
415e96c8
JH
477extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
478
b6986d8a 479/* "careful lstat()" */
da02ca50 480extern int check_path(const char *path, int len, struct stat *st, int skiplen);
b6986d8a 481
405e5b2f
LT
482#define REFRESH_REALLY 0x0001 /* ignore_valid */
483#define REFRESH_UNMERGED 0x0002 /* allow unmerged */
484#define REFRESH_QUIET 0x0004 /* be quiet about it */
485#define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */
3f1b7b60 486#define REFRESH_IGNORE_SUBMODULES 0x0010 /* ignore submodules */
43673fdd 487#define REFRESH_IN_PORCELAIN 0x0020 /* user friendly output, not "needs update" */
3deffc52 488extern int refresh_index(struct index_state *, unsigned int flags, const char **pathspec, char *seen, char *header_msg);
405e5b2f 489
021b6e45
JH
490struct lock_file {
491 struct lock_file *next;
4723ee99 492 int fd;
5e635e39 493 pid_t owner;
1084b845 494 char on_list;
021b6e45 495 char filename[PATH_MAX];
415e96c8 496};
acd3b9ec
JH
497#define LOCK_DIE_ON_ERROR 1
498#define LOCK_NODEREF 2
1b018fd9 499extern int unable_to_lock_error(const char *path, int err);
e43a6fd3 500extern NORETURN void unable_to_lock_index_die(const char *path, int err);
40aaae88 501extern int hold_lock_file_for_update(struct lock_file *, const char *path, int);
ea3cd5c7 502extern int hold_lock_file_for_append(struct lock_file *, const char *path, int);
021b6e45 503extern int commit_lock_file(struct lock_file *);
30ca07a2
JH
504
505extern int hold_locked_index(struct lock_file *, int);
506extern int commit_locked_index(struct lock_file *);
5e7f56ac 507extern void set_alternate_index_output(const char *);
d6cf61bf 508extern int close_lock_file(struct lock_file *);
021b6e45 509extern void rollback_lock_file(struct lock_file *);
eca35a25 510extern int delete_ref(const char *, const unsigned char *sha1, int delopt);
734aab75 511
2ae1c53b 512/* Environment bits from configuration mechanism */
17712991 513extern int trust_executable_bit;
1ce4790b 514extern int trust_ctime;
9378c161 515extern int quote_path_fully;
78a8d641 516extern int has_symlinks;
0a9b88b7 517extern int ignore_case;
5f73076c 518extern int assume_unchanged;
9f0bb90d 519extern int prefer_symlink_refs;
6de08ae6 520extern int log_all_ref_updates;
2f8acdb3 521extern int warn_ambiguous_refs;
457f06d6 522extern int shared_repository;
2ae1c53b 523extern const char *apply_default_whitespace;
86c91f91 524extern const char *apply_default_ignorewhitespace;
12f6c308 525extern int zlib_compression_level;
960ccca6
DH
526extern int core_compression_level;
527extern int core_compression_seen;
60bb8b14 528extern size_t packed_git_window_size;
77ccc5bb 529extern size_t packed_git_limit;
18bdec11 530extern size_t delta_base_cache_limit;
6c510bee 531extern int auto_crlf;
dae556bd 532extern int read_replace_refs;
aafe9fba 533extern int fsync_object_files;
671c9b7e 534extern int core_preload_index;
17712991 535
21e5ad50
SP
536enum safe_crlf {
537 SAFE_CRLF_FALSE = 0,
538 SAFE_CRLF_FAIL = 1,
539 SAFE_CRLF_WARN = 2,
540};
541
542extern enum safe_crlf safe_crlf;
543
9ed36cfa 544enum branch_track {
9188ed89 545 BRANCH_TRACK_UNSPECIFIED = -1,
9ed36cfa
JS
546 BRANCH_TRACK_NEVER = 0,
547 BRANCH_TRACK_REMOTE,
548 BRANCH_TRACK_ALWAYS,
549 BRANCH_TRACK_EXPLICIT,
550};
551
c998ae9b
DS
552enum rebase_setup_type {
553 AUTOREBASE_NEVER = 0,
554 AUTOREBASE_LOCAL,
555 AUTOREBASE_REMOTE,
556 AUTOREBASE_ALWAYS,
557};
558
52153747 559enum push_default_type {
52153747
FAG
560 PUSH_DEFAULT_NOTHING = 0,
561 PUSH_DEFAULT_MATCHING,
562 PUSH_DEFAULT_TRACKING,
563 PUSH_DEFAULT_CURRENT,
564};
565
9ed36cfa 566extern enum branch_track git_branch_track;
c998ae9b 567extern enum rebase_setup_type autorebase;
52153747 568extern enum push_default_type push_default;
9ed36cfa 569
348df166
JS
570enum object_creation_mode {
571 OBJECT_CREATION_USES_HARDLINKS = 0,
572 OBJECT_CREATION_USES_RENAMES = 1,
573};
574
575extern enum object_creation_mode object_creation_mode;
be66a6c4 576
a97a7468
JS
577extern char *notes_ref_name;
578
7f3140cd
JS
579extern int grafts_replace_parents;
580
ab9cb76f
JH
581#define GIT_REPO_VERSION 0
582extern int repository_format_version;
583extern int check_repository_format(void);
584
734aab75
LT
585#define MTIME_CHANGED 0x0001
586#define CTIME_CHANGED 0x0002
587#define OWNER_CHANGED 0x0004
588#define MODE_CHANGED 0x0008
589#define INODE_CHANGED 0x0010
590#define DATA_CHANGED 0x0020
8ae0a8c5 591#define TYPE_CHANGED 0x0040
e83c5163 592
108bebea
AR
593extern char *mksnpath(char *buf, size_t n, const char *fmt, ...)
594 __attribute__((format (printf, 3, 4)));
fe2d7776
AR
595extern char *git_snpath(char *buf, size_t n, const char *fmt, ...)
596 __attribute__((format (printf, 3, 4)));
aba13e7c
AR
597extern char *git_pathdup(const char *fmt, ...)
598 __attribute__((format (printf, 1, 2)));
108bebea 599
e83c5163 600/* Return a statically allocated filename matching the sha1 signature */
4ec99bf0
TS
601extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
602extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
73134b6d 603extern char *sha1_file_name(const unsigned char *sha1);
bf592c50
DB
604extern char *sha1_pack_name(const unsigned char *sha1);
605extern char *sha1_pack_index_name(const unsigned char *sha1);
013f276e 606extern const char *find_unique_abbrev(const unsigned char *sha1, int);
88cd621d 607extern const unsigned char null_sha1[20];
0bef57ee
DR
608static inline int is_null_sha1(const unsigned char *sha1)
609{
610 return !memcmp(sha1, null_sha1, 20);
611}
a89fccd2
DR
612static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
613{
614 return memcmp(sha1, sha2, 20);
615}
e702496e
SP
616static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
617{
618 memcpy(sha_dst, sha_src, 20);
619}
a8e0d16d
JH
620static inline void hashclr(unsigned char *hash)
621{
622 memset(hash, 0, 20);
623}
f55527f8 624extern int is_empty_blob_sha1(const unsigned char *sha1);
e83c5163 625
14d9c578
JK
626#define EMPTY_TREE_SHA1_HEX \
627 "4b825dc642cb6eb9a060e54bf8d69288fbee4904"
628#define EMPTY_TREE_SHA1_BIN \
629 "\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" \
630 "\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04"
631
f2db68ed
HE
632int git_mkstemp(char *path, size_t n, const char *template);
633
003b33a8
DA
634int git_mkstemps(char *path, size_t n, const char *template, int suffix_len);
635
06cbe855
HO
636/*
637 * NOTE NOTE NOTE!!
638 *
639 * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must
640 * not be changed. Old repositories have core.sharedrepository written in
641 * numeric format, and therefore these values are preserved for compatibility
642 * reasons.
643 */
94df2506 644enum sharedrepo {
06cbe855
HO
645 PERM_UMASK = 0,
646 OLD_PERM_GROUP = 1,
647 OLD_PERM_EVERYBODY = 2,
648 PERM_GROUP = 0660,
649 PERM_EVERYBODY = 0664,
94df2506
JH
650};
651int git_config_perm(const char *var, const char *value);
17e61b82
JH
652int set_shared_perm(const char *path, int mode);
653#define adjust_shared_perm(path) set_shared_perm((path), 0)
b2cb9425 654int safe_create_leading_directories(char *path);
8e21d63b 655int safe_create_leading_directories_const(const char *path);
395de250 656extern char *expand_user_path(const char *path);
bd22c904 657char *enter_repo(char *path, int strict);
e5392c51
JS
658static inline int is_absolute_path(const char *path)
659{
25fe217b 660 return path[0] == '/' || has_dos_drive_prefix(path);
e5392c51 661}
90b4a71c 662int is_directory(const char *);
e5392c51 663const char *make_absolute_path(const char *path);
1b9a9467 664const char *make_nonrelative_path(const char *path);
044bbbcb 665const char *make_relative_path(const char *abs, const char *base);
f3cad0ad 666int normalize_path_copy(char *dst, const char *src);
0454dd93 667int longest_ancestor_length(const char *path, const char *prefix_list);
4fcc86b0 668char *strip_path_suffix(const char *path, const char *suffix);
34b6cb8b 669int daemon_avoid_alias(const char *path);
b2cb9425 670
e83c5163 671/* Read and unpack a sha1 file into memory, write memory to a sha1 file */
21666f1a 672extern int sha1_object_info(const unsigned char *, unsigned long *);
f5552aee
CC
673extern void *read_sha1_file_repl(const unsigned char *sha1, enum object_type *type, unsigned long *size, const unsigned char **replacement);
674static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
675{
676 return read_sha1_file_repl(sha1, type, size, NULL);
677}
ce9fbf16 678extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1);
bf0f910d 679extern int write_sha1_file(void *buf, unsigned long len, const char *type, unsigned char *return_sha1);
21666f1a 680extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *);
bbac7311 681extern int force_object_loose(const unsigned char *sha1, time_t mtime);
8237b185 682
0e8189e2
NP
683/* global flag to enable extra checks when accessing packed objects */
684extern int do_check_packed_object_crc;
685
5d6ccf5c 686extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type);
e83c5163 687
839837b9 688extern int move_temp_to_file(const char *tmpfile, const char *filename);
8237b185 689
cd673c1f 690extern int has_sha1_pack(const unsigned char *sha1);
8237b185 691extern int has_sha1_file(const unsigned char *sha1);
0f4dc14a 692extern int has_loose_object_nonlocal(const unsigned char *sha1);
8237b185 693
bf592c50
DB
694extern int has_pack_file(const unsigned char *sha1);
695extern int has_pack_index(const unsigned char *sha1);
696
192a6be2
LT
697extern const signed char hexval_table[256];
698static inline unsigned int hexval(unsigned char c)
e49521b5
JH
699{
700 return hexval_table[c];
701}
702
e83c5163 703/* Convert to/from hex/sha1 representation */
46a6c262
JH
704#define MINIMUM_ABBREV 4
705#define DEFAULT_ABBREV 7
706
3c249c95 707extern int get_sha1(const char *str, unsigned char *sha1);
a0cd87a5 708extern int get_sha1_with_mode(const char *str, unsigned char *sha1, unsigned *mode);
197ee8c9
LT
709extern int get_sha1_hex(const char *hex, unsigned char *sha1);
710extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
ca8db142 711extern int read_ref(const char *filename, unsigned char *sha1);
8da19775 712extern const char *resolve_ref(const char *path, unsigned char *sha1, int, int *);
e86eb666 713extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref);
eb3a4822 714extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref);
431b1969 715extern int interpret_branch_name(const char *str, struct strbuf *);
e86eb666 716
79803322
SP
717extern int refname_match(const char *abbrev_name, const char *full_name, const char **rules);
718extern const char *ref_rev_parse_rules[];
605b4978 719extern const char *ref_fetch_rules[];
79803322 720
8b5157e4 721extern int create_symref(const char *ref, const char *refs_heads_master, const char *logmsg);
c847f537 722extern int validate_headref(const char *ref);
e83c5163 723
958ba6c9 724extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
0ab9e1e8 725extern int df_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
79517a06 726extern int cache_name_compare(const char *name1, int len1, const char *name2, int len2);
e83c5163 727
40469ee9 728extern void *read_object_with_reference(const unsigned char *sha1,
bf0f910d 729 const char *required_type,
40469ee9
JH
730 unsigned long *size,
731 unsigned char *sha1_ret);
f4913f91 732
81776315
JH
733extern struct object *peel_to_type(const char *name, int namelen,
734 struct object *o, enum object_type);
735
73013afd
JH
736enum date_mode {
737 DATE_NORMAL = 0,
738 DATE_RELATIVE,
739 DATE_SHORT,
740 DATE_LOCAL,
741 DATE_ISO8601,
7dff9b30
LT
742 DATE_RFC2822,
743 DATE_RAW
73013afd
JH
744};
745
f8493ec0 746const char *show_date(unsigned long time, int timezone, enum date_mode mode);
33012fc4
AR
747const char *show_date_relative(unsigned long time, int tz,
748 const struct timeval *now,
749 char *timebuf,
750 size_t timebuf_size);
2a39064c 751int parse_date(const char *date, char *buf, int bufsize);
ecee9d9e 752void datestamp(char *buf, int bufsize);
3c07b1d1 753unsigned long approxidate(const char *);
33012fc4 754unsigned long approxidate_relative(const char *date, const struct timeval *now);
856665f8 755enum date_mode parse_date_format(const char *format);
ecee9d9e 756
774751a8
JH
757#define IDENT_WARN_ON_NO_NAME 1
758#define IDENT_ERROR_ON_NO_NAME 2
759#define IDENT_NO_DATE 4
749be728
JH
760extern const char *git_author_info(int);
761extern const char *git_committer_info(int);
798123af 762extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int);
d9ccfe77 763extern const char *fmt_name(const char *name, const char *email);
44fcb497 764extern const char *git_editor(void);
63618245 765extern const char *git_pager(void);
6aa33f40 766
12dccc16
LT
767struct checkout {
768 const char *base_dir;
769 int base_dir_len;
770 unsigned force:1,
771 quiet:1,
772 not_new:1,
773 refresh_cache:1;
774};
775
efbc5831 776extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath);
b9fd2846
LT
777
778struct cache_def {
779 char path[PATH_MAX + 1];
780 int len;
781 int flags;
782 int track_flags;
783 int prefix_len_stat_func;
784};
785
57199892 786extern int has_symlink_leading_path(const char *name, int len);
b9fd2846 787extern int threaded_has_symlink_leading_path(struct cache_def *, const char *, int);
57199892
KB
788extern int has_symlink_or_noent_leading_path(const char *name, int len);
789extern int has_dirs_only_path(const char *name, int len, int prefix_len);
790extern void invalidate_lstat_cache(const char *name, int len);
bda6eb0d 791extern void clear_lstat_cache(void);
78478927
KB
792extern void schedule_dir_for_removal(const char *name, int len);
793extern void remove_scheduled_dirs(void);
12dccc16 794
9a217f2a 795extern struct alternate_object_database {
d5a63b99 796 struct alternate_object_database *next;
9a217f2a 797 char *name;
8f1d2e6f 798 char base[FLEX_ARRAY]; /* more */
d5a63b99 799} *alt_odb_list;
9a217f2a 800extern void prepare_alt_odb(void);
bef70b22 801extern void add_to_alternates_file(const char *reference);
d79796bc
JH
802typedef int alt_odb_fn(struct alternate_object_database *, void *);
803extern void foreach_alt_odb(alt_odb_fn, void*);
9a217f2a 804
c41ee586
SP
805struct pack_window {
806 struct pack_window *next;
807 unsigned char *base;
808 off_t offset;
809 size_t len;
810 unsigned int last_used;
811 unsigned int inuse_cnt;
812};
813
9a217f2a
JH
814extern struct packed_git {
815 struct packed_git *next;
c41ee586 816 struct pack_window *windows;
2dc3a234 817 off_t pack_size;
57059091
NP
818 const void *index_data;
819 size_t index_size;
820 uint32_t num_objects;
8eca0b47
NP
821 uint32_t num_bad_objects;
822 unsigned char *bad_object_sha1;
42873078 823 int index_version;
57059091 824 time_t mtime;
9bc879c1 825 int pack_fd;
8d25931d
BC
826 unsigned pack_local:1,
827 pack_keep:1;
bf592c50 828 unsigned char sha1[20];
8f1d2e6f
JH
829 /* something like ".git/objects/pack/xxxxx.pack" */
830 char pack_name[FLEX_ARRAY]; /* more */
9a217f2a 831} *packed_git;
f3bf9224
JH
832
833struct pack_entry {
c4001d92 834 off_t offset;
f3bf9224
JH
835 unsigned char sha1[20];
836 struct packed_git *p;
837};
838
d1c133f5
LT
839struct ref {
840 struct ref *next;
841 unsigned char old_sha1[20];
842 unsigned char new_sha1[20];
be885d96 843 char *symref;
9f8a15c7
SP
844 unsigned int force:1,
845 merge:1,
846 nonfastforward:1,
847 deletion:1;
8736a848
JK
848 enum {
849 REF_STATUS_NONE = 0,
850 REF_STATUS_OK,
851 REF_STATUS_REJECT_NONFASTFORWARD,
852 REF_STATUS_REJECT_NODELETE,
853 REF_STATUS_UPTODATE,
ca74c458 854 REF_STATUS_REMOTE_REJECT,
2a0fe89a 855 REF_STATUS_EXPECTING_REPORT,
8736a848 856 } status;
2a0fe89a 857 char *remote_status;
f88395ac 858 struct ref *peer_ref; /* when renaming */
8f1d2e6f 859 char name[FLEX_ARRAY]; /* more */
d1c133f5
LT
860};
861
2718ff09
LT
862#define REF_NORMAL (1u << 0)
863#define REF_HEADS (1u << 1)
864#define REF_TAGS (1u << 2)
865
5483f799 866extern struct ref *find_ref_by_name(const struct ref *list, const char *name);
cda69f48 867
7841ce79 868#define CONNECT_VERBOSE (1u << 0)
4577370e 869extern struct child_process *git_connect(int fd[2], const char *url, const char *prog, int flags);
98158e9c 870extern int finish_connect(struct child_process *conn);
013e7c7f 871extern int path_match(const char *path, int nr, char **match);
40c155ff
JH
872struct extra_have_objects {
873 int nr, alloc;
874 unsigned char (*array)[20];
875};
876extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, unsigned int flags, struct extra_have_objects *);
211b5f9e 877extern int server_supports(const char *feature);
f7192598 878
bf592c50
DB
879extern struct packed_git *parse_pack_index(unsigned char *sha1);
880
9a217f2a 881extern void prepare_packed_git(void);
fc04c412 882extern void reprepare_packed_git(void);
bf592c50
DB
883extern void install_packed_git(struct packed_git *pack);
884
a6080a0a 885extern struct packed_git *find_sha1_pack(const unsigned char *sha1,
bf592c50
DB
886 struct packed_git *packs);
887
276bc2ca 888extern void pack_report(void);
d079837e 889extern int open_pack_index(struct packed_git *);
4b25d091 890extern unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned int *);
c9ced051 891extern void close_pack_windows(struct packed_git *);
03e79c88 892extern void unuse_pack(struct pack_window **);
c74faea1 893extern void free_pack_by_name(const char *);
3d20c636 894extern void clear_delta_base_cache(void);
42873078 895extern struct packed_git *add_packed_git(const char *, int, int);
d079837e 896extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t);
99093238 897extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t);
c4001d92
SP
898extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *);
899extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *);
09ded04b 900extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep);
54dab52a 901extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t);
c4001d92 902extern const char *packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *);
9a217f2a 903
8f3f9b09
JH
904/* Dumb servers support */
905extern int update_server_info(int);
906
ef90d6d4
JS
907typedef int (*config_fn_t)(const char *, const char *, void *);
908extern int git_default_config(const char *, const char *, void *);
909extern int git_config_from_file(config_fn_t fn, const char *, void *);
910extern int git_config(config_fn_t fn, void *);
0b87b6e0 911extern int git_parse_ulong(const char *, unsigned long *);
17712991 912extern int git_config_int(const char *, const char *);
0b87b6e0 913extern unsigned long git_config_ulong(const char *, const char *);
a53f2ec6 914extern int git_config_bool_or_int(const char *, const char *, int *);
17712991 915extern int git_config_bool(const char *, const char *);
ea5105a5 916extern int git_config_string(const char **, const char *, const char *);
395de250 917extern int git_config_pathname(const char **, const char *, const char *);
10bea152 918extern int git_config_set(const char *, const char *);
4ddba79d 919extern int git_config_set_multivar(const char *, const char *, const char *, int);
0667fcfb 920extern int git_config_rename_section(const char *, const char *);
506b17b1 921extern const char *git_etc_gitconfig(void);
ef90d6d4 922extern int check_repository_format_version(const char *var, const char *value, void *cb);
ab88c363
JK
923extern int git_config_system(void);
924extern int git_config_global(void);
40ea4ed9 925extern int config_error_nonbool(const char *);
dc871831 926extern const char *config_exclusive_filename;
17712991 927
e1b10391
LT
928#define MAX_GITNAME (1000)
929extern char git_default_email[MAX_GITNAME];
930extern char git_default_name[MAX_GITNAME];
bb1ae3f6 931extern int user_ident_explicitly_given;
e1b10391 932
1a8f2741 933extern const char *git_commit_encoding;
3a55602e 934extern const char *git_log_output_encoding;
d551a488 935extern const char *git_mailmap_file;
4e72dcec 936
06f59e9f
TT
937/* IO helper functions */
938extern void maybe_flush_or_die(FILE *, const char *);
f3123c4a 939extern int copy_fd(int ifd, int ofd);
1468bd47 940extern int copy_file(const char *dst, const char *src, int mode);
f7835a25 941extern int copy_file_with_time(const char *dst, const char *src, int mode);
7230e6d0 942extern void write_or_die(int fd, const void *buf, size_t count);
6ce4e61f 943extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg);
e0814056 944extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg);
4c81b03e 945extern void fsync_or_die(int fd, const char *);
ad897215 946
2b7ca830
JM
947extern ssize_t read_in_full(int fd, void *buf, size_t count);
948extern ssize_t write_in_full(int fd, const void *buf, size_t count);
949static inline ssize_t write_str_in_full(int fd, const char *str)
950{
951 return write_in_full(fd, str, strlen(str));
952}
953
f67b45f8
LT
954/* pager.c */
955extern void setup_pager(void);
872da32d 956extern const char *pager_program;
6e9af863 957extern int pager_in_use(void);
aa086eb8 958extern int pager_use_color;
f67b45f8 959
ee9601e6 960extern const char *editor_program;
dfb068be 961extern const char *excludes_file;
4d87b9c5 962
051308f6 963/* base85 */
f9815772
JM
964int decode_85(char *dst, const char *line, int linelen);
965void encode_85(char *buf, const unsigned char *data, int bytes);
051308f6 966
855419f7 967/* alloc.c */
100c5f3b
LT
968extern void *alloc_blob_node(void);
969extern void *alloc_tree_node(void);
970extern void *alloc_commit_node(void);
971extern void *alloc_tag_node(void);
972extern void *alloc_object_node(void);
855419f7
LT
973extern void alloc_report(void);
974
6ce4e61f 975/* trace.c */
28bea9e5 976__attribute__((format (printf, 1, 2)))
6ce4e61f 977extern void trace_printf(const char *format, ...);
28bea9e5 978__attribute__((format (printf, 2, 3)))
b319ce4c 979extern void trace_argv_printf(const char **argv, const char *format, ...);
6ce4e61f 980
6c510bee 981/* convert.c */
5ecd293d 982/* returns 1 if *dst was used */
21e5ad50
SP
983extern int convert_to_git(const char *path, const char *src, size_t len,
984 struct strbuf *dst, enum safe_crlf checksafe);
5ecd293d 985extern int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst);
6c510bee 986
b6ec1d61 987/* add */
7ae02a30
AR
988/*
989 * return 0 if success, 1 - if addition of a file failed and
990 * ADD_FILES_IGNORE_ERRORS was specified in flags
991 */
992int add_files_to_cache(const char *prefix, const char **pathspec, int flags);
b6ec1d61 993
aecbf914
JH
994/* diff.c */
995extern int diff_auto_refresh_index;
996
68faf689
JH
997/* match-trees.c */
998void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
999
a9cc857a
JH
1000/*
1001 * whitespace rules.
1002 * used by both diff and apply
1003 */
aeb84b05 1004#define WS_BLANK_AT_EOL 01
a9cc857a 1005#define WS_SPACE_BEFORE_TAB 02
459fa6d0 1006#define WS_INDENT_WITH_NON_TAB 04
b2979ff5 1007#define WS_CR_AT_EOL 010
77b15bbd 1008#define WS_BLANK_AT_EOF 020
aeb84b05 1009#define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF)
a9cc857a 1010#define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB)
cf1b7869
JH
1011extern unsigned whitespace_rule_cfg;
1012extern unsigned whitespace_rule(const char *);
1013extern unsigned parse_whitespace_rule(const char *);
8f8841e9
JH
1014extern unsigned ws_check(const char *line, int len, unsigned ws_rule);
1015extern void ws_check_emit(const char *line, int len, unsigned ws_rule, FILE *stream, const char *set, const char *reset, const char *ws);
c1795bb0 1016extern char *whitespace_error_string(unsigned ws);
fe3403c3 1017extern int ws_fix_copy(char *, const char *, int, unsigned, int *);
877f23cc 1018extern int ws_blank_line(const char *line, int len, unsigned ws_rule);
a9cc857a 1019
ee425e46 1020/* ls-files */
ee425e46
JH
1021int report_path_error(const char *ps_matched, const char **pathspec, int prefix_offset);
1022void overlay_tree_on_cache(const char *tree_name, const char *prefix);
1023
94351118 1024char *alias_lookup(const char *alias);
0989fe96 1025int split_cmdline(char *cmdline, const char ***argv);
94351118 1026
e83c5163 1027#endif /* CACHE_H */