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1 | #ifndef CACHE_H | |
2 | #define CACHE_H | |
3 | ||
4 | #include "git-compat-util.h" | |
5 | #include "strbuf.h" | |
6 | #include "hash.h" | |
7 | #include "advice.h" | |
8 | ||
9 | #include SHA1_HEADER | |
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 | |
16 | ||
17 | #include <zlib.h> | |
18 | #if defined(NO_DEFLATE_BOUND) || ZLIB_VERNUM < 0x1200 | |
19 | #define deflateBound(c,s) ((s) + (((s) + 7) >> 3) + (((s) + 63) >> 6) + 11) | |
20 | #endif | |
21 | ||
22 | void git_inflate_init(z_streamp strm); | |
23 | void git_inflate_end(z_streamp strm); | |
24 | int git_inflate(z_streamp strm, int flush); | |
25 | ||
26 | #if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT) | |
27 | #define DTYPE(de) ((de)->d_type) | |
28 | #else | |
29 | #undef DT_UNKNOWN | |
30 | #undef DT_DIR | |
31 | #undef DT_REG | |
32 | #undef DT_LNK | |
33 | #define DT_UNKNOWN 0 | |
34 | #define DT_DIR 1 | |
35 | #define DT_REG 2 | |
36 | #define DT_LNK 3 | |
37 | #define DTYPE(de) DT_UNKNOWN | |
38 | #endif | |
39 | ||
40 | /* unknown mode (impossible combination S_IFIFO|S_IFCHR) */ | |
41 | #define S_IFINVALID 0030000 | |
42 | ||
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 | */ | |
56 | #define S_IFGITLINK 0160000 | |
57 | #define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK) | |
58 | ||
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. | |
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 | |
77 | */ | |
78 | #define DEFAULT_GIT_PORT 9418 | |
79 | ||
80 | /* | |
81 | * Basic data structures for the directory cache | |
82 | */ | |
83 | ||
84 | #define CACHE_SIGNATURE 0x44495243 /* "DIRC" */ | |
85 | struct cache_header { | |
86 | unsigned int hdr_signature; | |
87 | unsigned int hdr_version; | |
88 | unsigned int hdr_entries; | |
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 | */ | |
96 | struct 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. | |
105 | * | |
106 | * We save the fields in big-endian order to allow using the | |
107 | * index file over NFS transparently. | |
108 | */ | |
109 | struct 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 | ||
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 | */ | |
128 | struct 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 | ||
143 | struct cache_entry { | |
144 | struct cache_time ce_ctime; | |
145 | struct cache_time ce_mtime; | |
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; | |
152 | unsigned int ce_flags; | |
153 | unsigned char sha1[20]; | |
154 | struct cache_entry *next; | |
155 | char name[FLEX_ARRAY]; /* more */ | |
156 | }; | |
157 | ||
158 | #define CE_NAMEMASK (0x0fff) | |
159 | #define CE_STAGEMASK (0x3000) | |
160 | #define CE_EXTENDED (0x4000) | |
161 | #define CE_VALID (0x8000) | |
162 | #define CE_STAGESHIFT 12 | |
163 | ||
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 | */ | |
173 | #define CE_UPDATE (1 << 16) | |
174 | #define CE_REMOVE (1 << 17) | |
175 | #define CE_UPTODATE (1 << 18) | |
176 | #define CE_ADDED (1 << 19) | |
177 | ||
178 | #define CE_HASHED (1 << 20) | |
179 | #define CE_UNHASHED (1 << 21) | |
180 | #define CE_WT_REMOVE (1 << 22) /* remove in work directory */ | |
181 | #define CE_CONFLICTED (1 << 23) | |
182 | ||
183 | #define CE_UNPACKED (1 << 24) | |
184 | #define CE_NEW_SKIP_WORKTREE (1 << 25) | |
185 | ||
186 | /* | |
187 | * Extended on-disk flags | |
188 | */ | |
189 | #define CE_INTENT_TO_ADD (1 << 29) | |
190 | #define CE_SKIP_WORKTREE (1 << 30) | |
191 | /* CE_EXTENDED2 is for future extension */ | |
192 | #define CE_EXTENDED2 (1 << 31) | |
193 | ||
194 | #define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD | CE_SKIP_WORKTREE) | |
195 | ||
196 | /* | |
197 | * Safeguard to avoid saving wrong flags: | |
198 | * - CE_EXTENDED2 won't get saved until its semantic is known | |
199 | * - Bits in 0x0000FFFF have been saved in ce_flags already | |
200 | * - Bits in 0x003F0000 are currently in-memory flags | |
201 | */ | |
202 | #if CE_EXTENDED_FLAGS & 0x803FFFFF | |
203 | #error "CE_EXTENDED_FLAGS out of range" | |
204 | #endif | |
205 | ||
206 | /* | |
207 | * Copy the sha1 and stat state of a cache entry from one to | |
208 | * another. But we never change the name, or the hash state! | |
209 | */ | |
210 | #define CE_STATE_MASK (CE_HASHED | CE_UNHASHED) | |
211 | static inline void copy_cache_entry(struct cache_entry *dst, struct cache_entry *src) | |
212 | { | |
213 | unsigned int state = dst->ce_flags & CE_STATE_MASK; | |
214 | ||
215 | /* Don't copy hash chain and name */ | |
216 | memcpy(dst, src, offsetof(struct cache_entry, next)); | |
217 | ||
218 | /* Restore the hash state */ | |
219 | dst->ce_flags = (dst->ce_flags & ~CE_STATE_MASK) | state; | |
220 | } | |
221 | ||
222 | static inline unsigned create_ce_flags(size_t len, unsigned stage) | |
223 | { | |
224 | if (len >= CE_NAMEMASK) | |
225 | len = CE_NAMEMASK; | |
226 | return (len | (stage << CE_STAGESHIFT)); | |
227 | } | |
228 | ||
229 | static inline size_t ce_namelen(const struct cache_entry *ce) | |
230 | { | |
231 | size_t len = ce->ce_flags & CE_NAMEMASK; | |
232 | if (len < CE_NAMEMASK) | |
233 | return len; | |
234 | return strlen(ce->name + CE_NAMEMASK) + CE_NAMEMASK; | |
235 | } | |
236 | ||
237 | #define ce_size(ce) cache_entry_size(ce_namelen(ce)) | |
238 | #define ondisk_ce_size(ce) (((ce)->ce_flags & CE_EXTENDED) ? \ | |
239 | ondisk_cache_entry_extended_size(ce_namelen(ce)) : \ | |
240 | ondisk_cache_entry_size(ce_namelen(ce))) | |
241 | #define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT) | |
242 | #define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE) | |
243 | #define ce_skip_worktree(ce) ((ce)->ce_flags & CE_SKIP_WORKTREE) | |
244 | #define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE) | |
245 | ||
246 | #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644) | |
247 | static inline unsigned int create_ce_mode(unsigned int mode) | |
248 | { | |
249 | if (S_ISLNK(mode)) | |
250 | return S_IFLNK; | |
251 | if (S_ISDIR(mode) || S_ISGITLINK(mode)) | |
252 | return S_IFGITLINK; | |
253 | return S_IFREG | ce_permissions(mode); | |
254 | } | |
255 | static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned int mode) | |
256 | { | |
257 | extern int trust_executable_bit, has_symlinks; | |
258 | if (!has_symlinks && S_ISREG(mode) && | |
259 | ce && S_ISLNK(ce->ce_mode)) | |
260 | return ce->ce_mode; | |
261 | if (!trust_executable_bit && S_ISREG(mode)) { | |
262 | if (ce && S_ISREG(ce->ce_mode)) | |
263 | return ce->ce_mode; | |
264 | return create_ce_mode(0666); | |
265 | } | |
266 | return create_ce_mode(mode); | |
267 | } | |
268 | static inline int ce_to_dtype(const struct cache_entry *ce) | |
269 | { | |
270 | unsigned ce_mode = ntohl(ce->ce_mode); | |
271 | if (S_ISREG(ce_mode)) | |
272 | return DT_REG; | |
273 | else if (S_ISDIR(ce_mode) || S_ISGITLINK(ce_mode)) | |
274 | return DT_DIR; | |
275 | else if (S_ISLNK(ce_mode)) | |
276 | return DT_LNK; | |
277 | else | |
278 | return DT_UNKNOWN; | |
279 | } | |
280 | static inline unsigned int canon_mode(unsigned int mode) | |
281 | { | |
282 | if (S_ISREG(mode)) | |
283 | return S_IFREG | ce_permissions(mode); | |
284 | if (S_ISLNK(mode)) | |
285 | return S_IFLNK; | |
286 | if (S_ISDIR(mode)) | |
287 | return S_IFDIR; | |
288 | return S_IFGITLINK; | |
289 | } | |
290 | ||
291 | #define flexible_size(STRUCT,len) ((offsetof(struct STRUCT,name) + (len) + 8) & ~7) | |
292 | #define cache_entry_size(len) flexible_size(cache_entry,len) | |
293 | #define ondisk_cache_entry_size(len) flexible_size(ondisk_cache_entry,len) | |
294 | #define ondisk_cache_entry_extended_size(len) flexible_size(ondisk_cache_entry_extended,len) | |
295 | ||
296 | struct index_state { | |
297 | struct cache_entry **cache; | |
298 | unsigned int cache_nr, cache_alloc, cache_changed; | |
299 | struct string_list *resolve_undo; | |
300 | struct cache_tree *cache_tree; | |
301 | struct cache_time timestamp; | |
302 | void *alloc; | |
303 | unsigned name_hash_initialized : 1, | |
304 | initialized : 1; | |
305 | struct hash_table name_hash; | |
306 | }; | |
307 | ||
308 | extern struct index_state the_index; | |
309 | ||
310 | /* Name hashing */ | |
311 | extern void add_name_hash(struct index_state *istate, struct cache_entry *ce); | |
312 | /* | |
313 | * We don't actually *remove* it, we can just mark it invalid so that | |
314 | * we won't find it in lookups. | |
315 | * | |
316 | * Not only would we have to search the lists (simple enough), but | |
317 | * we'd also have to rehash other hash buckets in case this makes the | |
318 | * hash bucket empty (common). So it's much better to just mark | |
319 | * it. | |
320 | */ | |
321 | static inline void remove_name_hash(struct cache_entry *ce) | |
322 | { | |
323 | ce->ce_flags |= CE_UNHASHED; | |
324 | } | |
325 | ||
326 | ||
327 | #ifndef NO_THE_INDEX_COMPATIBILITY_MACROS | |
328 | #define active_cache (the_index.cache) | |
329 | #define active_nr (the_index.cache_nr) | |
330 | #define active_alloc (the_index.cache_alloc) | |
331 | #define active_cache_changed (the_index.cache_changed) | |
332 | #define active_cache_tree (the_index.cache_tree) | |
333 | ||
334 | #define read_cache() read_index(&the_index) | |
335 | #define read_cache_from(path) read_index_from(&the_index, (path)) | |
336 | #define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec)) | |
337 | #define is_cache_unborn() is_index_unborn(&the_index) | |
338 | #define read_cache_unmerged() read_index_unmerged(&the_index) | |
339 | #define write_cache(newfd, cache, entries) write_index(&the_index, (newfd)) | |
340 | #define discard_cache() discard_index(&the_index) | |
341 | #define unmerged_cache() unmerged_index(&the_index) | |
342 | #define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen)) | |
343 | #define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option)) | |
344 | #define rename_cache_entry_at(pos, new_name) rename_index_entry_at(&the_index, (pos), (new_name)) | |
345 | #define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos)) | |
346 | #define remove_file_from_cache(path) remove_file_from_index(&the_index, (path)) | |
347 | #define add_to_cache(path, st, flags) add_to_index(&the_index, (path), (st), (flags)) | |
348 | #define add_file_to_cache(path, flags) add_file_to_index(&the_index, (path), (flags)) | |
349 | #define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL) | |
350 | #define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options)) | |
351 | #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options)) | |
352 | #define cache_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase)) | |
353 | #define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen)) | |
354 | #define resolve_undo_clear() resolve_undo_clear_index(&the_index) | |
355 | #define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at) | |
356 | #define unmerge_cache(pathspec) unmerge_index(&the_index, pathspec) | |
357 | #endif | |
358 | ||
359 | enum object_type { | |
360 | OBJ_BAD = -1, | |
361 | OBJ_NONE = 0, | |
362 | OBJ_COMMIT = 1, | |
363 | OBJ_TREE = 2, | |
364 | OBJ_BLOB = 3, | |
365 | OBJ_TAG = 4, | |
366 | /* 5 for future expansion */ | |
367 | OBJ_OFS_DELTA = 6, | |
368 | OBJ_REF_DELTA = 7, | |
369 | OBJ_ANY, | |
370 | OBJ_MAX | |
371 | }; | |
372 | ||
373 | static inline enum object_type object_type(unsigned int mode) | |
374 | { | |
375 | return S_ISDIR(mode) ? OBJ_TREE : | |
376 | S_ISGITLINK(mode) ? OBJ_COMMIT : | |
377 | OBJ_BLOB; | |
378 | } | |
379 | ||
380 | #define GIT_DIR_ENVIRONMENT "GIT_DIR" | |
381 | #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE" | |
382 | #define DEFAULT_GIT_DIR_ENVIRONMENT ".git" | |
383 | #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY" | |
384 | #define INDEX_ENVIRONMENT "GIT_INDEX_FILE" | |
385 | #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE" | |
386 | #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR" | |
387 | #define CONFIG_ENVIRONMENT "GIT_CONFIG" | |
388 | #define CONFIG_DATA_ENVIRONMENT "GIT_CONFIG_PARAMETERS" | |
389 | #define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH" | |
390 | #define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES" | |
391 | #define NO_REPLACE_OBJECTS_ENVIRONMENT "GIT_NO_REPLACE_OBJECTS" | |
392 | #define GITATTRIBUTES_FILE ".gitattributes" | |
393 | #define INFOATTRIBUTES_FILE "info/attributes" | |
394 | #define ATTRIBUTE_MACRO_PREFIX "[attr]" | |
395 | #define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF" | |
396 | #define GIT_NOTES_DEFAULT_REF "refs/notes/commits" | |
397 | #define GIT_NOTES_DISPLAY_REF_ENVIRONMENT "GIT_NOTES_DISPLAY_REF" | |
398 | #define GIT_NOTES_REWRITE_REF_ENVIRONMENT "GIT_NOTES_REWRITE_REF" | |
399 | #define GIT_NOTES_REWRITE_MODE_ENVIRONMENT "GIT_NOTES_REWRITE_MODE" | |
400 | ||
401 | /* | |
402 | * Repository-local GIT_* environment variables | |
403 | * The array is NULL-terminated to simplify its usage in contexts such | |
404 | * environment creation or simple walk of the list. | |
405 | * The number of non-NULL entries is available as a macro. | |
406 | */ | |
407 | #define LOCAL_REPO_ENV_SIZE 9 | |
408 | extern const char *const local_repo_env[LOCAL_REPO_ENV_SIZE + 1]; | |
409 | ||
410 | extern int is_bare_repository_cfg; | |
411 | extern int is_bare_repository(void); | |
412 | extern int is_inside_git_dir(void); | |
413 | extern char *git_work_tree_cfg; | |
414 | extern int is_inside_work_tree(void); | |
415 | extern int have_git_dir(void); | |
416 | extern const char *get_git_dir(void); | |
417 | extern char *get_object_directory(void); | |
418 | extern char *get_index_file(void); | |
419 | extern char *get_graft_file(void); | |
420 | extern int set_git_dir(const char *path); | |
421 | extern const char *get_git_work_tree(void); | |
422 | extern const char *read_gitfile_gently(const char *path); | |
423 | extern void set_git_work_tree(const char *tree); | |
424 | ||
425 | #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES" | |
426 | ||
427 | extern const char **get_pathspec(const char *prefix, const char **pathspec); | |
428 | extern void setup_work_tree(void); | |
429 | extern const char *setup_git_directory_gently(int *); | |
430 | extern const char *setup_git_directory(void); | |
431 | extern char *prefix_path(const char *prefix, int len, const char *path); | |
432 | extern const char *prefix_filename(const char *prefix, int len, const char *path); | |
433 | extern int check_filename(const char *prefix, const char *name); | |
434 | extern void verify_filename(const char *prefix, const char *name); | |
435 | extern void verify_non_filename(const char *prefix, const char *name); | |
436 | ||
437 | #define INIT_DB_QUIET 0x0001 | |
438 | ||
439 | extern int init_db(const char *template_dir, unsigned int flags); | |
440 | ||
441 | #define alloc_nr(x) (((x)+16)*3/2) | |
442 | ||
443 | /* | |
444 | * Realloc the buffer pointed at by variable 'x' so that it can hold | |
445 | * at least 'nr' entries; the number of entries currently allocated | |
446 | * is 'alloc', using the standard growing factor alloc_nr() macro. | |
447 | * | |
448 | * DO NOT USE any expression with side-effect for 'x', 'nr', or 'alloc'. | |
449 | */ | |
450 | #define ALLOC_GROW(x, nr, alloc) \ | |
451 | do { \ | |
452 | if ((nr) > alloc) { \ | |
453 | if (alloc_nr(alloc) < (nr)) \ | |
454 | alloc = (nr); \ | |
455 | else \ | |
456 | alloc = alloc_nr(alloc); \ | |
457 | x = xrealloc((x), alloc * sizeof(*(x))); \ | |
458 | } \ | |
459 | } while (0) | |
460 | ||
461 | /* Initialize and use the cache information */ | |
462 | extern int read_index(struct index_state *); | |
463 | extern int read_index_preload(struct index_state *, const char **pathspec); | |
464 | extern int read_index_from(struct index_state *, const char *path); | |
465 | extern int is_index_unborn(struct index_state *); | |
466 | extern int read_index_unmerged(struct index_state *); | |
467 | extern int write_index(struct index_state *, int newfd); | |
468 | extern int discard_index(struct index_state *); | |
469 | extern int unmerged_index(const struct index_state *); | |
470 | extern int verify_path(const char *path); | |
471 | extern struct cache_entry *index_name_exists(struct index_state *istate, const char *name, int namelen, int igncase); | |
472 | extern int index_name_pos(const struct index_state *, const char *name, int namelen); | |
473 | #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */ | |
474 | #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */ | |
475 | #define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */ | |
476 | #define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */ | |
477 | #define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */ | |
478 | extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option); | |
479 | extern void rename_index_entry_at(struct index_state *, int pos, const char *new_name); | |
480 | extern int remove_index_entry_at(struct index_state *, int pos); | |
481 | extern void remove_marked_cache_entries(struct index_state *istate); | |
482 | extern int remove_file_from_index(struct index_state *, const char *path); | |
483 | #define ADD_CACHE_VERBOSE 1 | |
484 | #define ADD_CACHE_PRETEND 2 | |
485 | #define ADD_CACHE_IGNORE_ERRORS 4 | |
486 | #define ADD_CACHE_IGNORE_REMOVAL 8 | |
487 | #define ADD_CACHE_INTENT 16 | |
488 | extern int add_to_index(struct index_state *, const char *path, struct stat *, int flags); | |
489 | extern int add_file_to_index(struct index_state *, const char *path, int flags); | |
490 | extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, int refresh); | |
491 | extern int ce_same_name(struct cache_entry *a, struct cache_entry *b); | |
492 | extern int index_name_is_other(const struct index_state *, const char *, int); | |
493 | ||
494 | /* do stat comparison even if CE_VALID is true */ | |
495 | #define CE_MATCH_IGNORE_VALID 01 | |
496 | /* do not check the contents but report dirty on racily-clean entries */ | |
497 | #define CE_MATCH_RACY_IS_DIRTY 02 | |
498 | /* do stat comparison even if CE_SKIP_WORKTREE is true */ | |
499 | #define CE_MATCH_IGNORE_SKIP_WORKTREE 04 | |
500 | extern int ie_match_stat(const struct index_state *, struct cache_entry *, struct stat *, unsigned int); | |
501 | extern int ie_modified(const struct index_state *, struct cache_entry *, struct stat *, unsigned int); | |
502 | ||
503 | extern int ce_path_match(const struct cache_entry *ce, const char **pathspec); | |
504 | extern int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object, enum object_type type, const char *path); | |
505 | extern int index_path(unsigned char *sha1, const char *path, struct stat *st, int write_object); | |
506 | extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st); | |
507 | ||
508 | #define REFRESH_REALLY 0x0001 /* ignore_valid */ | |
509 | #define REFRESH_UNMERGED 0x0002 /* allow unmerged */ | |
510 | #define REFRESH_QUIET 0x0004 /* be quiet about it */ | |
511 | #define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */ | |
512 | #define REFRESH_IGNORE_SUBMODULES 0x0010 /* ignore submodules */ | |
513 | #define REFRESH_IN_PORCELAIN 0x0020 /* user friendly output, not "needs update" */ | |
514 | extern int refresh_index(struct index_state *, unsigned int flags, const char **pathspec, char *seen, char *header_msg); | |
515 | ||
516 | struct lock_file { | |
517 | struct lock_file *next; | |
518 | int fd; | |
519 | pid_t owner; | |
520 | char on_list; | |
521 | char filename[PATH_MAX]; | |
522 | }; | |
523 | #define LOCK_DIE_ON_ERROR 1 | |
524 | #define LOCK_NODEREF 2 | |
525 | extern int unable_to_lock_error(const char *path, int err); | |
526 | extern NORETURN void unable_to_lock_index_die(const char *path, int err); | |
527 | extern int hold_lock_file_for_update(struct lock_file *, const char *path, int); | |
528 | extern int hold_lock_file_for_append(struct lock_file *, const char *path, int); | |
529 | extern int commit_lock_file(struct lock_file *); | |
530 | ||
531 | extern int hold_locked_index(struct lock_file *, int); | |
532 | extern int commit_locked_index(struct lock_file *); | |
533 | extern void set_alternate_index_output(const char *); | |
534 | extern int close_lock_file(struct lock_file *); | |
535 | extern void rollback_lock_file(struct lock_file *); | |
536 | extern int delete_ref(const char *, const unsigned char *sha1, int delopt); | |
537 | ||
538 | /* Environment bits from configuration mechanism */ | |
539 | extern int trust_executable_bit; | |
540 | extern int trust_ctime; | |
541 | extern int quote_path_fully; | |
542 | extern int has_symlinks; | |
543 | extern int ignore_case; | |
544 | extern int assume_unchanged; | |
545 | extern int prefer_symlink_refs; | |
546 | extern int log_all_ref_updates; | |
547 | extern int warn_ambiguous_refs; | |
548 | extern int unique_abbrev_extra_length; | |
549 | extern int shared_repository; | |
550 | extern const char *apply_default_whitespace; | |
551 | extern const char *apply_default_ignorewhitespace; | |
552 | extern int zlib_compression_level; | |
553 | extern int core_compression_level; | |
554 | extern int core_compression_seen; | |
555 | extern size_t packed_git_window_size; | |
556 | extern size_t packed_git_limit; | |
557 | extern size_t delta_base_cache_limit; | |
558 | extern int read_replace_refs; | |
559 | extern int fsync_object_files; | |
560 | extern int core_preload_index; | |
561 | extern int core_apply_sparse_checkout; | |
562 | ||
563 | enum safe_crlf { | |
564 | SAFE_CRLF_FALSE = 0, | |
565 | SAFE_CRLF_FAIL = 1, | |
566 | SAFE_CRLF_WARN = 2 | |
567 | }; | |
568 | ||
569 | extern enum safe_crlf safe_crlf; | |
570 | ||
571 | enum auto_crlf { | |
572 | AUTO_CRLF_FALSE = 0, | |
573 | AUTO_CRLF_TRUE = 1, | |
574 | AUTO_CRLF_INPUT = -1, | |
575 | }; | |
576 | ||
577 | extern enum auto_crlf auto_crlf; | |
578 | ||
579 | enum eol { | |
580 | EOL_UNSET, | |
581 | EOL_CRLF, | |
582 | EOL_LF, | |
583 | #ifdef NATIVE_CRLF | |
584 | EOL_NATIVE = EOL_CRLF | |
585 | #else | |
586 | EOL_NATIVE = EOL_LF | |
587 | #endif | |
588 | }; | |
589 | ||
590 | extern enum eol eol; | |
591 | ||
592 | enum branch_track { | |
593 | BRANCH_TRACK_UNSPECIFIED = -1, | |
594 | BRANCH_TRACK_NEVER = 0, | |
595 | BRANCH_TRACK_REMOTE, | |
596 | BRANCH_TRACK_ALWAYS, | |
597 | BRANCH_TRACK_EXPLICIT, | |
598 | BRANCH_TRACK_OVERRIDE | |
599 | }; | |
600 | ||
601 | enum rebase_setup_type { | |
602 | AUTOREBASE_NEVER = 0, | |
603 | AUTOREBASE_LOCAL, | |
604 | AUTOREBASE_REMOTE, | |
605 | AUTOREBASE_ALWAYS | |
606 | }; | |
607 | ||
608 | enum push_default_type { | |
609 | PUSH_DEFAULT_NOTHING = 0, | |
610 | PUSH_DEFAULT_MATCHING, | |
611 | PUSH_DEFAULT_TRACKING, | |
612 | PUSH_DEFAULT_CURRENT | |
613 | }; | |
614 | ||
615 | extern enum branch_track git_branch_track; | |
616 | extern enum rebase_setup_type autorebase; | |
617 | extern enum push_default_type push_default; | |
618 | ||
619 | enum object_creation_mode { | |
620 | OBJECT_CREATION_USES_HARDLINKS = 0, | |
621 | OBJECT_CREATION_USES_RENAMES = 1 | |
622 | }; | |
623 | ||
624 | extern enum object_creation_mode object_creation_mode; | |
625 | ||
626 | extern char *notes_ref_name; | |
627 | ||
628 | extern int grafts_replace_parents; | |
629 | ||
630 | #define GIT_REPO_VERSION 0 | |
631 | extern int repository_format_version; | |
632 | extern int check_repository_format(void); | |
633 | ||
634 | #define MTIME_CHANGED 0x0001 | |
635 | #define CTIME_CHANGED 0x0002 | |
636 | #define OWNER_CHANGED 0x0004 | |
637 | #define MODE_CHANGED 0x0008 | |
638 | #define INODE_CHANGED 0x0010 | |
639 | #define DATA_CHANGED 0x0020 | |
640 | #define TYPE_CHANGED 0x0040 | |
641 | ||
642 | extern char *mksnpath(char *buf, size_t n, const char *fmt, ...) | |
643 | __attribute__((format (printf, 3, 4))); | |
644 | extern char *git_snpath(char *buf, size_t n, const char *fmt, ...) | |
645 | __attribute__((format (printf, 3, 4))); | |
646 | extern char *git_pathdup(const char *fmt, ...) | |
647 | __attribute__((format (printf, 1, 2))); | |
648 | ||
649 | /* Return a statically allocated filename matching the sha1 signature */ | |
650 | extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2))); | |
651 | extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2))); | |
652 | extern char *git_path_submodule(const char *path, const char *fmt, ...) | |
653 | __attribute__((format (printf, 2, 3))); | |
654 | ||
655 | extern char *sha1_file_name(const unsigned char *sha1); | |
656 | extern char *sha1_pack_name(const unsigned char *sha1); | |
657 | extern char *sha1_pack_index_name(const unsigned char *sha1); | |
658 | extern const char *find_unique_abbrev(const unsigned char *sha1, int); | |
659 | extern const unsigned char null_sha1[20]; | |
660 | static inline int is_null_sha1(const unsigned char *sha1) | |
661 | { | |
662 | return !memcmp(sha1, null_sha1, 20); | |
663 | } | |
664 | static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2) | |
665 | { | |
666 | return memcmp(sha1, sha2, 20); | |
667 | } | |
668 | static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src) | |
669 | { | |
670 | memcpy(sha_dst, sha_src, 20); | |
671 | } | |
672 | static inline void hashclr(unsigned char *hash) | |
673 | { | |
674 | memset(hash, 0, 20); | |
675 | } | |
676 | ||
677 | #define EMPTY_TREE_SHA1_HEX \ | |
678 | "4b825dc642cb6eb9a060e54bf8d69288fbee4904" | |
679 | #define EMPTY_TREE_SHA1_BIN \ | |
680 | "\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" \ | |
681 | "\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04" | |
682 | ||
683 | int git_mkstemp(char *path, size_t n, const char *template); | |
684 | ||
685 | int git_mkstemps(char *path, size_t n, const char *template, int suffix_len); | |
686 | ||
687 | /* set default permissions by passing mode arguments to open(2) */ | |
688 | int git_mkstemps_mode(char *pattern, int suffix_len, int mode); | |
689 | int git_mkstemp_mode(char *pattern, int mode); | |
690 | ||
691 | /* | |
692 | * NOTE NOTE NOTE!! | |
693 | * | |
694 | * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must | |
695 | * not be changed. Old repositories have core.sharedrepository written in | |
696 | * numeric format, and therefore these values are preserved for compatibility | |
697 | * reasons. | |
698 | */ | |
699 | enum sharedrepo { | |
700 | PERM_UMASK = 0, | |
701 | OLD_PERM_GROUP = 1, | |
702 | OLD_PERM_EVERYBODY = 2, | |
703 | PERM_GROUP = 0660, | |
704 | PERM_EVERYBODY = 0664 | |
705 | }; | |
706 | int git_config_perm(const char *var, const char *value); | |
707 | int set_shared_perm(const char *path, int mode); | |
708 | #define adjust_shared_perm(path) set_shared_perm((path), 0) | |
709 | int safe_create_leading_directories(char *path); | |
710 | int safe_create_leading_directories_const(const char *path); | |
711 | extern char *expand_user_path(const char *path); | |
712 | char *enter_repo(char *path, int strict); | |
713 | static inline int is_absolute_path(const char *path) | |
714 | { | |
715 | return path[0] == '/' || has_dos_drive_prefix(path); | |
716 | } | |
717 | int is_directory(const char *); | |
718 | const char *make_absolute_path(const char *path); | |
719 | const char *make_nonrelative_path(const char *path); | |
720 | const char *make_relative_path(const char *abs, const char *base); | |
721 | int normalize_path_copy(char *dst, const char *src); | |
722 | int longest_ancestor_length(const char *path, const char *prefix_list); | |
723 | char *strip_path_suffix(const char *path, const char *suffix); | |
724 | int daemon_avoid_alias(const char *path); | |
725 | int offset_1st_component(const char *path); | |
726 | ||
727 | /* Read and unpack a sha1 file into memory, write memory to a sha1 file */ | |
728 | extern int sha1_object_info(const unsigned char *, unsigned long *); | |
729 | extern void *read_sha1_file_repl(const unsigned char *sha1, enum object_type *type, unsigned long *size, const unsigned char **replacement); | |
730 | static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size) | |
731 | { | |
732 | return read_sha1_file_repl(sha1, type, size, NULL); | |
733 | } | |
734 | extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1); | |
735 | extern int write_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *return_sha1); | |
736 | extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *); | |
737 | extern int force_object_loose(const unsigned char *sha1, time_t mtime); | |
738 | ||
739 | /* global flag to enable extra checks when accessing packed objects */ | |
740 | extern int do_check_packed_object_crc; | |
741 | ||
742 | extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type); | |
743 | ||
744 | extern int move_temp_to_file(const char *tmpfile, const char *filename); | |
745 | ||
746 | extern int has_sha1_pack(const unsigned char *sha1); | |
747 | extern int has_sha1_file(const unsigned char *sha1); | |
748 | extern int has_loose_object_nonlocal(const unsigned char *sha1); | |
749 | ||
750 | extern int has_pack_index(const unsigned char *sha1); | |
751 | ||
752 | extern void assert_sha1_type(const unsigned char *sha1, enum object_type expect); | |
753 | ||
754 | extern const signed char hexval_table[256]; | |
755 | static inline unsigned int hexval(unsigned char c) | |
756 | { | |
757 | return hexval_table[c]; | |
758 | } | |
759 | ||
760 | /* Convert to/from hex/sha1 representation */ | |
761 | #define MINIMUM_ABBREV 4 | |
762 | #define DEFAULT_ABBREV 7 | |
763 | ||
764 | struct object_context { | |
765 | unsigned char tree[20]; | |
766 | char path[PATH_MAX]; | |
767 | unsigned mode; | |
768 | }; | |
769 | ||
770 | extern int get_sha1(const char *str, unsigned char *sha1); | |
771 | extern int get_sha1_with_mode_1(const char *str, unsigned char *sha1, unsigned *mode, int gently, const char *prefix); | |
772 | static inline int get_sha1_with_mode(const char *str, unsigned char *sha1, unsigned *mode) | |
773 | { | |
774 | return get_sha1_with_mode_1(str, sha1, mode, 1, NULL); | |
775 | } | |
776 | extern int get_sha1_with_context_1(const char *name, unsigned char *sha1, struct object_context *orc, int gently, const char *prefix); | |
777 | static inline int get_sha1_with_context(const char *str, unsigned char *sha1, struct object_context *orc) | |
778 | { | |
779 | return get_sha1_with_context_1(str, sha1, orc, 1, NULL); | |
780 | } | |
781 | extern int get_sha1_hex(const char *hex, unsigned char *sha1); | |
782 | extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */ | |
783 | extern int read_ref(const char *filename, unsigned char *sha1); | |
784 | extern const char *resolve_ref(const char *path, unsigned char *sha1, int, int *); | |
785 | extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref); | |
786 | extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref); | |
787 | extern int interpret_branch_name(const char *str, struct strbuf *); | |
788 | extern int get_sha1_mb(const char *str, unsigned char *sha1); | |
789 | ||
790 | extern int refname_match(const char *abbrev_name, const char *full_name, const char **rules); | |
791 | extern const char *ref_rev_parse_rules[]; | |
792 | extern const char *ref_fetch_rules[]; | |
793 | ||
794 | extern int create_symref(const char *ref, const char *refs_heads_master, const char *logmsg); | |
795 | extern int validate_headref(const char *ref); | |
796 | ||
797 | extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2); | |
798 | extern int df_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2); | |
799 | extern int cache_name_compare(const char *name1, int len1, const char *name2, int len2); | |
800 | ||
801 | extern void *read_object_with_reference(const unsigned char *sha1, | |
802 | const char *required_type, | |
803 | unsigned long *size, | |
804 | unsigned char *sha1_ret); | |
805 | ||
806 | extern struct object *peel_to_type(const char *name, int namelen, | |
807 | struct object *o, enum object_type); | |
808 | ||
809 | enum date_mode { | |
810 | DATE_NORMAL = 0, | |
811 | DATE_RELATIVE, | |
812 | DATE_SHORT, | |
813 | DATE_LOCAL, | |
814 | DATE_ISO8601, | |
815 | DATE_RFC2822, | |
816 | DATE_RAW | |
817 | }; | |
818 | ||
819 | const char *show_date(unsigned long time, int timezone, enum date_mode mode); | |
820 | const char *show_date_relative(unsigned long time, int tz, | |
821 | const struct timeval *now, | |
822 | char *timebuf, | |
823 | size_t timebuf_size); | |
824 | int parse_date(const char *date, char *buf, int bufsize); | |
825 | int parse_date_basic(const char *date, unsigned long *timestamp, int *offset); | |
826 | void datestamp(char *buf, int bufsize); | |
827 | #define approxidate(s) approxidate_careful((s), NULL) | |
828 | unsigned long approxidate_careful(const char *, int *); | |
829 | unsigned long approxidate_relative(const char *date, const struct timeval *now); | |
830 | enum date_mode parse_date_format(const char *format); | |
831 | ||
832 | #define IDENT_WARN_ON_NO_NAME 1 | |
833 | #define IDENT_ERROR_ON_NO_NAME 2 | |
834 | #define IDENT_NO_DATE 4 | |
835 | extern const char *git_author_info(int); | |
836 | extern const char *git_committer_info(int); | |
837 | extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int); | |
838 | extern const char *fmt_name(const char *name, const char *email); | |
839 | extern const char *git_editor(void); | |
840 | extern const char *git_pager(int stdout_is_tty); | |
841 | ||
842 | struct checkout { | |
843 | const char *base_dir; | |
844 | int base_dir_len; | |
845 | unsigned force:1, | |
846 | quiet:1, | |
847 | not_new:1, | |
848 | refresh_cache:1; | |
849 | }; | |
850 | ||
851 | extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath); | |
852 | ||
853 | struct cache_def { | |
854 | char path[PATH_MAX + 1]; | |
855 | int len; | |
856 | int flags; | |
857 | int track_flags; | |
858 | int prefix_len_stat_func; | |
859 | }; | |
860 | ||
861 | extern int has_symlink_leading_path(const char *name, int len); | |
862 | extern int threaded_has_symlink_leading_path(struct cache_def *, const char *, int); | |
863 | extern int check_leading_path(const char *name, int len); | |
864 | extern int has_dirs_only_path(const char *name, int len, int prefix_len); | |
865 | extern void schedule_dir_for_removal(const char *name, int len); | |
866 | extern void remove_scheduled_dirs(void); | |
867 | ||
868 | extern struct alternate_object_database { | |
869 | struct alternate_object_database *next; | |
870 | char *name; | |
871 | char base[FLEX_ARRAY]; /* more */ | |
872 | } *alt_odb_list; | |
873 | extern void prepare_alt_odb(void); | |
874 | extern void add_to_alternates_file(const char *reference); | |
875 | typedef int alt_odb_fn(struct alternate_object_database *, void *); | |
876 | extern void foreach_alt_odb(alt_odb_fn, void*); | |
877 | ||
878 | struct pack_window { | |
879 | struct pack_window *next; | |
880 | unsigned char *base; | |
881 | off_t offset; | |
882 | size_t len; | |
883 | unsigned int last_used; | |
884 | unsigned int inuse_cnt; | |
885 | }; | |
886 | ||
887 | extern struct packed_git { | |
888 | struct packed_git *next; | |
889 | struct pack_window *windows; | |
890 | off_t pack_size; | |
891 | const void *index_data; | |
892 | size_t index_size; | |
893 | uint32_t num_objects; | |
894 | uint32_t num_bad_objects; | |
895 | unsigned char *bad_object_sha1; | |
896 | int index_version; | |
897 | time_t mtime; | |
898 | int pack_fd; | |
899 | unsigned pack_local:1, | |
900 | pack_keep:1; | |
901 | unsigned char sha1[20]; | |
902 | /* something like ".git/objects/pack/xxxxx.pack" */ | |
903 | char pack_name[FLEX_ARRAY]; /* more */ | |
904 | } *packed_git; | |
905 | ||
906 | struct pack_entry { | |
907 | off_t offset; | |
908 | unsigned char sha1[20]; | |
909 | struct packed_git *p; | |
910 | }; | |
911 | ||
912 | struct ref { | |
913 | struct ref *next; | |
914 | unsigned char old_sha1[20]; | |
915 | unsigned char new_sha1[20]; | |
916 | char *symref; | |
917 | unsigned int force:1, | |
918 | merge:1, | |
919 | nonfastforward:1, | |
920 | deletion:1; | |
921 | enum { | |
922 | REF_STATUS_NONE = 0, | |
923 | REF_STATUS_OK, | |
924 | REF_STATUS_REJECT_NONFASTFORWARD, | |
925 | REF_STATUS_REJECT_NODELETE, | |
926 | REF_STATUS_UPTODATE, | |
927 | REF_STATUS_REMOTE_REJECT, | |
928 | REF_STATUS_EXPECTING_REPORT | |
929 | } status; | |
930 | char *remote_status; | |
931 | struct ref *peer_ref; /* when renaming */ | |
932 | char name[FLEX_ARRAY]; /* more */ | |
933 | }; | |
934 | ||
935 | #define REF_NORMAL (1u << 0) | |
936 | #define REF_HEADS (1u << 1) | |
937 | #define REF_TAGS (1u << 2) | |
938 | ||
939 | extern struct ref *find_ref_by_name(const struct ref *list, const char *name); | |
940 | ||
941 | #define CONNECT_VERBOSE (1u << 0) | |
942 | extern char *git_getpass(const char *prompt); | |
943 | extern struct child_process *git_connect(int fd[2], const char *url, const char *prog, int flags); | |
944 | extern int finish_connect(struct child_process *conn); | |
945 | extern int path_match(const char *path, int nr, char **match); | |
946 | struct extra_have_objects { | |
947 | int nr, alloc; | |
948 | unsigned char (*array)[20]; | |
949 | }; | |
950 | extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, unsigned int flags, struct extra_have_objects *); | |
951 | extern int server_supports(const char *feature); | |
952 | ||
953 | extern struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_path); | |
954 | ||
955 | extern void prepare_packed_git(void); | |
956 | extern void reprepare_packed_git(void); | |
957 | extern void install_packed_git(struct packed_git *pack); | |
958 | ||
959 | extern struct packed_git *find_sha1_pack(const unsigned char *sha1, | |
960 | struct packed_git *packs); | |
961 | ||
962 | extern void pack_report(void); | |
963 | extern int open_pack_index(struct packed_git *); | |
964 | extern void close_pack_index(struct packed_git *); | |
965 | extern unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned int *); | |
966 | extern void close_pack_windows(struct packed_git *); | |
967 | extern void unuse_pack(struct pack_window **); | |
968 | extern void free_pack_by_name(const char *); | |
969 | extern void clear_delta_base_cache(void); | |
970 | extern struct packed_git *add_packed_git(const char *, int, int); | |
971 | extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t); | |
972 | extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t); | |
973 | extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *); | |
974 | extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *); | |
975 | extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep); | |
976 | extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t); | |
977 | extern const char *packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *); | |
978 | ||
979 | /* Dumb servers support */ | |
980 | extern int update_server_info(int); | |
981 | ||
982 | typedef int (*config_fn_t)(const char *, const char *, void *); | |
983 | extern int git_default_config(const char *, const char *, void *); | |
984 | extern int git_config_from_file(config_fn_t fn, const char *, void *); | |
985 | extern void git_config_push_parameter(const char *text); | |
986 | extern int git_config_parse_parameter(const char *text); | |
987 | extern int git_config_parse_environment(void); | |
988 | extern int git_config_from_parameters(config_fn_t fn, void *data); | |
989 | extern int git_config(config_fn_t fn, void *); | |
990 | extern int git_config_early(config_fn_t fn, void *, const char *repo_config); | |
991 | extern int git_parse_ulong(const char *, unsigned long *); | |
992 | extern int git_config_int(const char *, const char *); | |
993 | extern unsigned long git_config_ulong(const char *, const char *); | |
994 | extern int git_config_bool_or_int(const char *, const char *, int *); | |
995 | extern int git_config_bool(const char *, const char *); | |
996 | extern int git_config_maybe_bool(const char *, const char *); | |
997 | extern int git_config_string(const char **, const char *, const char *); | |
998 | extern int git_config_pathname(const char **, const char *, const char *); | |
999 | extern int git_config_set(const char *, const char *); | |
1000 | extern int git_config_set_multivar(const char *, const char *, const char *, int); | |
1001 | extern int git_config_rename_section(const char *, const char *); | |
1002 | extern const char *git_etc_gitconfig(void); | |
1003 | extern int check_repository_format_version(const char *var, const char *value, void *cb); | |
1004 | extern int git_env_bool(const char *, int); | |
1005 | extern int git_config_system(void); | |
1006 | extern int git_config_global(void); | |
1007 | extern int config_error_nonbool(const char *); | |
1008 | extern const char *get_log_output_encoding(void); | |
1009 | extern const char *get_commit_output_encoding(void); | |
1010 | ||
1011 | extern const char *config_exclusive_filename; | |
1012 | ||
1013 | #define MAX_GITNAME (1000) | |
1014 | extern char git_default_email[MAX_GITNAME]; | |
1015 | extern char git_default_name[MAX_GITNAME]; | |
1016 | #define IDENT_NAME_GIVEN 01 | |
1017 | #define IDENT_MAIL_GIVEN 02 | |
1018 | #define IDENT_ALL_GIVEN (IDENT_NAME_GIVEN|IDENT_MAIL_GIVEN) | |
1019 | extern int user_ident_explicitly_given; | |
1020 | extern int user_ident_sufficiently_given(void); | |
1021 | ||
1022 | extern const char *git_commit_encoding; | |
1023 | extern const char *git_log_output_encoding; | |
1024 | extern const char *git_mailmap_file; | |
1025 | ||
1026 | /* IO helper functions */ | |
1027 | extern void maybe_flush_or_die(FILE *, const char *); | |
1028 | extern int copy_fd(int ifd, int ofd); | |
1029 | extern int copy_file(const char *dst, const char *src, int mode); | |
1030 | extern int copy_file_with_time(const char *dst, const char *src, int mode); | |
1031 | extern void write_or_die(int fd, const void *buf, size_t count); | |
1032 | extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg); | |
1033 | extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg); | |
1034 | extern void fsync_or_die(int fd, const char *); | |
1035 | ||
1036 | extern ssize_t read_in_full(int fd, void *buf, size_t count); | |
1037 | extern ssize_t write_in_full(int fd, const void *buf, size_t count); | |
1038 | static inline ssize_t write_str_in_full(int fd, const char *str) | |
1039 | { | |
1040 | return write_in_full(fd, str, strlen(str)); | |
1041 | } | |
1042 | ||
1043 | /* pager.c */ | |
1044 | extern void setup_pager(void); | |
1045 | extern const char *pager_program; | |
1046 | extern int pager_in_use(void); | |
1047 | extern int pager_use_color; | |
1048 | ||
1049 | extern const char *editor_program; | |
1050 | extern const char *askpass_program; | |
1051 | extern const char *excludes_file; | |
1052 | ||
1053 | /* base85 */ | |
1054 | int decode_85(char *dst, const char *line, int linelen); | |
1055 | void encode_85(char *buf, const unsigned char *data, int bytes); | |
1056 | ||
1057 | /* alloc.c */ | |
1058 | extern void *alloc_blob_node(void); | |
1059 | extern void *alloc_tree_node(void); | |
1060 | extern void *alloc_commit_node(void); | |
1061 | extern void *alloc_tag_node(void); | |
1062 | extern void *alloc_object_node(void); | |
1063 | extern void alloc_report(void); | |
1064 | ||
1065 | /* trace.c */ | |
1066 | __attribute__((format (printf, 1, 2))) | |
1067 | extern void trace_printf(const char *format, ...); | |
1068 | __attribute__((format (printf, 2, 3))) | |
1069 | extern void trace_argv_printf(const char **argv, const char *format, ...); | |
1070 | extern void trace_repo_setup(const char *prefix); | |
1071 | ||
1072 | /* convert.c */ | |
1073 | /* returns 1 if *dst was used */ | |
1074 | extern int convert_to_git(const char *path, const char *src, size_t len, | |
1075 | struct strbuf *dst, enum safe_crlf checksafe); | |
1076 | extern int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst); | |
1077 | extern int renormalize_buffer(const char *path, const char *src, size_t len, struct strbuf *dst); | |
1078 | ||
1079 | /* add */ | |
1080 | /* | |
1081 | * return 0 if success, 1 - if addition of a file failed and | |
1082 | * ADD_FILES_IGNORE_ERRORS was specified in flags | |
1083 | */ | |
1084 | int add_files_to_cache(const char *prefix, const char **pathspec, int flags); | |
1085 | ||
1086 | /* diff.c */ | |
1087 | extern int diff_auto_refresh_index; | |
1088 | ||
1089 | /* match-trees.c */ | |
1090 | void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int); | |
1091 | void shift_tree_by(const unsigned char *, const unsigned char *, unsigned char *, const char *); | |
1092 | ||
1093 | /* | |
1094 | * whitespace rules. | |
1095 | * used by both diff and apply | |
1096 | * last two digits are tab width | |
1097 | */ | |
1098 | #define WS_BLANK_AT_EOL 0100 | |
1099 | #define WS_SPACE_BEFORE_TAB 0200 | |
1100 | #define WS_INDENT_WITH_NON_TAB 0400 | |
1101 | #define WS_CR_AT_EOL 01000 | |
1102 | #define WS_BLANK_AT_EOF 02000 | |
1103 | #define WS_TAB_IN_INDENT 04000 | |
1104 | #define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF) | |
1105 | #define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|8) | |
1106 | #define WS_TAB_WIDTH_MASK 077 | |
1107 | extern unsigned whitespace_rule_cfg; | |
1108 | extern unsigned whitespace_rule(const char *); | |
1109 | extern unsigned parse_whitespace_rule(const char *); | |
1110 | extern unsigned ws_check(const char *line, int len, unsigned ws_rule); | |
1111 | extern void ws_check_emit(const char *line, int len, unsigned ws_rule, FILE *stream, const char *set, const char *reset, const char *ws); | |
1112 | extern char *whitespace_error_string(unsigned ws); | |
1113 | extern void ws_fix_copy(struct strbuf *, const char *, int, unsigned, int *); | |
1114 | extern int ws_blank_line(const char *line, int len, unsigned ws_rule); | |
1115 | #define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK) | |
1116 | ||
1117 | /* ls-files */ | |
1118 | int report_path_error(const char *ps_matched, const char **pathspec, int prefix_offset); | |
1119 | void overlay_tree_on_cache(const char *tree_name, const char *prefix); | |
1120 | ||
1121 | char *alias_lookup(const char *alias); | |
1122 | int split_cmdline(char *cmdline, const char ***argv); | |
1123 | /* Takes a negative value returned by split_cmdline */ | |
1124 | const char *split_cmdline_strerror(int cmdline_errno); | |
1125 | ||
1126 | /* git.c */ | |
1127 | struct startup_info { | |
1128 | int have_repository; | |
1129 | const char *prefix; | |
1130 | }; | |
1131 | extern struct startup_info *startup_info; | |
1132 | ||
1133 | /* builtin/merge.c */ | |
1134 | int checkout_fast_forward(const unsigned char *from, const unsigned char *to); | |
1135 | ||
1136 | #endif /* CACHE_H */ |