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Commit | Line | Data |
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e83c5163 LT |
1 | #ifndef CACHE_H |
2 | #define CACHE_H | |
3 | ||
4050c0df | 4 | #include "git-compat-util.h" |
5ecd293d | 5 | #include "strbuf.h" |
e05881a4 | 6 | #include "hashmap.h" |
75194438 | 7 | #include "advice.h" |
65784830 | 8 | #include "gettext.h" |
d1bf0e08 | 9 | #include "convert.h" |
e83c5163 | 10 | |
cef661fc | 11 | #include SHA1_HEADER |
9126f009 NP |
12 | #ifndef git_SHA_CTX |
13 | #define git_SHA_CTX SHA_CTX | |
14 | #define git_SHA1_Init SHA1_Init | |
15 | #define git_SHA1_Update SHA1_Update | |
16 | #define git_SHA1_Final SHA1_Final | |
17 | #endif | |
e83c5163 | 18 | |
9126f009 | 19 | #include <zlib.h> |
ef49a7a0 JH |
20 | typedef struct git_zstream { |
21 | z_stream z; | |
22 | unsigned long avail_in; | |
23 | unsigned long avail_out; | |
24 | unsigned long total_in; | |
25 | unsigned long total_out; | |
26 | unsigned char *next_in; | |
27 | unsigned char *next_out; | |
28 | } git_zstream; | |
29 | ||
30 | void git_inflate_init(git_zstream *); | |
31 | void git_inflate_init_gzip_only(git_zstream *); | |
32 | void git_inflate_end(git_zstream *); | |
33 | int git_inflate(git_zstream *, int flush); | |
34 | ||
35 | void git_deflate_init(git_zstream *, int level); | |
36 | void git_deflate_init_gzip(git_zstream *, int level); | |
c3c2e1a0 | 37 | void git_deflate_init_raw(git_zstream *, int level); |
ef49a7a0 | 38 | void git_deflate_end(git_zstream *); |
568508e7 | 39 | int git_deflate_abort(git_zstream *); |
ef49a7a0 JH |
40 | int git_deflate_end_gently(git_zstream *); |
41 | int git_deflate(git_zstream *, int flush); | |
42 | unsigned long git_deflate_bound(git_zstream *, unsigned long); | |
39c68542 | 43 | |
962554c6 | 44 | #if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT) |
b6829693 ET |
45 | #define DTYPE(de) ((de)->d_type) |
46 | #else | |
0bdd79af JH |
47 | #undef DT_UNKNOWN |
48 | #undef DT_DIR | |
49 | #undef DT_REG | |
50 | #undef DT_LNK | |
b6829693 ET |
51 | #define DT_UNKNOWN 0 |
52 | #define DT_DIR 1 | |
53 | #define DT_REG 2 | |
a15c1c60 | 54 | #define DT_LNK 3 |
b6829693 ET |
55 | #define DTYPE(de) DT_UNKNOWN |
56 | #endif | |
57 | ||
40689ae1 MK |
58 | /* unknown mode (impossible combination S_IFIFO|S_IFCHR) */ |
59 | #define S_IFINVALID 0030000 | |
60 | ||
9eec4795 LT |
61 | /* |
62 | * A "directory link" is a link to another git directory. | |
63 | * | |
64 | * The value 0160000 is not normally a valid mode, and | |
65 | * also just happens to be S_IFDIR + S_IFLNK | |
66 | * | |
67 | * NOTE! We *really* shouldn't depend on the S_IFxxx macros | |
68 | * always having the same values everywhere. We should use | |
69 | * our internal git values for these things, and then we can | |
70 | * translate that to the OS-specific value. It just so | |
71 | * happens that everybody shares the same bit representation | |
72 | * in the UNIX world (and apparently wider too..) | |
73 | */ | |
302b9282 MW |
74 | #define S_IFGITLINK 0160000 |
75 | #define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK) | |
9eec4795 | 76 | |
72441af7 KS |
77 | /* |
78 | * Some mode bits are also used internally for computations. | |
79 | * | |
80 | * They *must* not overlap with any valid modes, and they *must* not be emitted | |
81 | * to outside world - i.e. appear on disk or network. In other words, it's just | |
82 | * temporary fields, which we internally use, but they have to stay in-house. | |
83 | * | |
84 | * ( such approach is valid, as standard S_IF* fits into 16 bits, and in Git | |
85 | * codebase mode is `unsigned int` which is assumed to be at least 32 bits ) | |
86 | */ | |
87 | ||
88 | /* used internally in tree-diff */ | |
89 | #define S_DIFFTREE_IFXMIN_NEQ 0x80000000 | |
90 | ||
91 | ||
2386d658 LT |
92 | /* |
93 | * Intensive research over the course of many years has shown that | |
94 | * port 9418 is totally unused by anything else. Or | |
95 | * | |
96 | * Your search - "port 9418" - did not match any documents. | |
97 | * | |
98 | * as www.google.com puts it. | |
ba8a4970 LT |
99 | * |
100 | * This port has been properly assigned for git use by IANA: | |
101 | * git (Assigned-9418) [I06-050728-0001]. | |
102 | * | |
103 | * git 9418/tcp git pack transfer service | |
104 | * git 9418/udp git pack transfer service | |
105 | * | |
106 | * with Linus Torvalds <torvalds@osdl.org> as the point of | |
107 | * contact. September 2005. | |
108 | * | |
109 | * See http://www.iana.org/assignments/port-numbers | |
2386d658 LT |
110 | */ |
111 | #define DEFAULT_GIT_PORT 9418 | |
112 | ||
e83c5163 LT |
113 | /* |
114 | * Basic data structures for the directory cache | |
e83c5163 LT |
115 | */ |
116 | ||
117 | #define CACHE_SIGNATURE 0x44495243 /* "DIRC" */ | |
118 | struct cache_header { | |
7800c1eb TG |
119 | uint32_t hdr_signature; |
120 | uint32_t hdr_version; | |
121 | uint32_t hdr_entries; | |
e83c5163 LT |
122 | }; |
123 | ||
9d227781 JH |
124 | #define INDEX_FORMAT_LB 2 |
125 | #define INDEX_FORMAT_UB 4 | |
126 | ||
e83c5163 LT |
127 | /* |
128 | * The "cache_time" is just the low 32 bits of the | |
129 | * time. It doesn't matter if it overflows - we only | |
130 | * check it for equality in the 32 bits we save. | |
131 | */ | |
132 | struct cache_time { | |
7800c1eb TG |
133 | uint32_t sec; |
134 | uint32_t nsec; | |
e83c5163 LT |
135 | }; |
136 | ||
c21d39d7 MH |
137 | struct stat_data { |
138 | struct cache_time sd_ctime; | |
139 | struct cache_time sd_mtime; | |
140 | unsigned int sd_dev; | |
141 | unsigned int sd_ino; | |
142 | unsigned int sd_uid; | |
143 | unsigned int sd_gid; | |
144 | unsigned int sd_size; | |
145 | }; | |
146 | ||
e83c5163 | 147 | struct cache_entry { |
8b013788 | 148 | struct hashmap_entry ent; |
c21d39d7 | 149 | struct stat_data ce_stat_data; |
ccc4feb5 | 150 | unsigned int ce_mode; |
7a51ed66 | 151 | unsigned int ce_flags; |
b60e188c | 152 | unsigned int ce_namelen; |
e83c5163 | 153 | unsigned char sha1[20]; |
8f1d2e6f | 154 | char name[FLEX_ARRAY]; /* more */ |
e83c5163 LT |
155 | }; |
156 | ||
95fd5bf8 | 157 | #define CE_STAGEMASK (0x3000) |
16ce2e4c | 158 | #define CE_EXTENDED (0x4000) |
5f73076c | 159 | #define CE_VALID (0x8000) |
aee46198 | 160 | #define CE_STAGESHIFT 12 |
95fd5bf8 | 161 | |
06aaaa0b NTND |
162 | /* |
163 | * Range 0xFFFF0000 in ce_flags is divided into | |
164 | * two parts: in-memory flags and on-disk ones. | |
165 | * Flags in CE_EXTENDED_FLAGS will get saved on-disk | |
166 | * if you want to save a new flag, add it in | |
167 | * CE_EXTENDED_FLAGS | |
168 | * | |
169 | * In-memory only flags | |
170 | */ | |
2977ffbb NTND |
171 | #define CE_UPDATE (1 << 16) |
172 | #define CE_REMOVE (1 << 17) | |
173 | #define CE_UPTODATE (1 << 18) | |
174 | #define CE_ADDED (1 << 19) | |
a22c6371 | 175 | |
2977ffbb | 176 | #define CE_HASHED (1 << 20) |
2977ffbb NTND |
177 | #define CE_WT_REMOVE (1 << 22) /* remove in work directory */ |
178 | #define CE_CONFLICTED (1 << 23) | |
7a51ed66 | 179 | |
2977ffbb | 180 | #define CE_UNPACKED (1 << 24) |
2431afbf | 181 | #define CE_NEW_SKIP_WORKTREE (1 << 25) |
da165f47 | 182 | |
e721c154 NTND |
183 | /* used to temporarily mark paths matched by pathspecs */ |
184 | #define CE_MATCHED (1 << 26) | |
185 | ||
06aaaa0b NTND |
186 | /* |
187 | * Extended on-disk flags | |
188 | */ | |
2977ffbb NTND |
189 | #define CE_INTENT_TO_ADD (1 << 29) |
190 | #define CE_SKIP_WORKTREE (1 << 30) | |
06aaaa0b | 191 | /* CE_EXTENDED2 is for future extension */ |
2977ffbb | 192 | #define CE_EXTENDED2 (1 << 31) |
06aaaa0b | 193 | |
44a36913 | 194 | #define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD | CE_SKIP_WORKTREE) |
06aaaa0b NTND |
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 | ||
64acde94 NTND |
206 | struct pathspec; |
207 | ||
eb7a2f1d LT |
208 | /* |
209 | * Copy the sha1 and stat state of a cache entry from one to | |
210 | * another. But we never change the name, or the hash state! | |
211 | */ | |
20d142b4 RS |
212 | static inline void copy_cache_entry(struct cache_entry *dst, |
213 | const struct cache_entry *src) | |
eb7a2f1d | 214 | { |
419a597f | 215 | unsigned int state = dst->ce_flags & CE_HASHED; |
eb7a2f1d LT |
216 | |
217 | /* Don't copy hash chain and name */ | |
8b013788 KB |
218 | memcpy(&dst->ce_stat_data, &src->ce_stat_data, |
219 | offsetof(struct cache_entry, name) - | |
220 | offsetof(struct cache_entry, ce_stat_data)); | |
eb7a2f1d LT |
221 | |
222 | /* Restore the hash state */ | |
419a597f | 223 | dst->ce_flags = (dst->ce_flags & ~CE_HASHED) | state; |
eb7a2f1d LT |
224 | } |
225 | ||
b60e188c | 226 | static inline unsigned create_ce_flags(unsigned stage) |
7fec10b7 | 227 | { |
b60e188c | 228 | return (stage << CE_STAGESHIFT); |
7fec10b7 JH |
229 | } |
230 | ||
b60e188c | 231 | #define ce_namelen(ce) ((ce)->ce_namelen) |
aee46198 | 232 | #define ce_size(ce) cache_entry_size(ce_namelen(ce)) |
7a51ed66 | 233 | #define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT) |
eadb5831 | 234 | #define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE) |
44a36913 | 235 | #define ce_skip_worktree(ce) ((ce)->ce_flags & CE_SKIP_WORKTREE) |
eadb5831 | 236 | #define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE) |
aee46198 | 237 | |
e4479470 | 238 | #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644) |
8ae0a8c5 KS |
239 | static inline unsigned int create_ce_mode(unsigned int mode) |
240 | { | |
8ae0a8c5 | 241 | if (S_ISLNK(mode)) |
7a51ed66 | 242 | return S_IFLNK; |
302b9282 | 243 | if (S_ISDIR(mode) || S_ISGITLINK(mode)) |
7a51ed66 LT |
244 | return S_IFGITLINK; |
245 | return S_IFREG | ce_permissions(mode); | |
8ae0a8c5 | 246 | } |
20d142b4 RS |
247 | static inline unsigned int ce_mode_from_stat(const struct cache_entry *ce, |
248 | unsigned int mode) | |
185c975f | 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 |
261 | static 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 | } | |
b90d9b88 RS |
273 | static inline unsigned int canon_mode(unsigned int mode) |
274 | { | |
275 | if (S_ISREG(mode)) | |
276 | return S_IFREG | ce_permissions(mode); | |
277 | if (S_ISLNK(mode)) | |
278 | return S_IFLNK; | |
279 | if (S_ISDIR(mode)) | |
280 | return S_IFDIR; | |
281 | return S_IFGITLINK; | |
282 | } | |
e4479470 | 283 | |
ee7825b5 | 284 | #define cache_entry_size(len) (offsetof(struct cache_entry,name) + (len) + 1) |
f5cabd13 | 285 | |
228e94f9 JH |
286 | struct index_state { |
287 | struct cache_entry **cache; | |
9d227781 | 288 | unsigned int version; |
228e94f9 | 289 | unsigned int cache_nr, cache_alloc, cache_changed; |
cfc5789a | 290 | struct string_list *resolve_undo; |
228e94f9 | 291 | struct cache_tree *cache_tree; |
fba2f38a | 292 | struct cache_time timestamp; |
913e0e99 JH |
293 | unsigned name_hash_initialized : 1, |
294 | initialized : 1; | |
8b013788 | 295 | struct hashmap name_hash; |
e05881a4 | 296 | struct hashmap dir_hash; |
426ddeea | 297 | unsigned char sha1[20]; |
228e94f9 JH |
298 | }; |
299 | ||
300 | extern struct index_state the_index; | |
301 | ||
96872bc2 LT |
302 | /* Name hashing */ |
303 | extern void add_name_hash(struct index_state *istate, struct cache_entry *ce); | |
2092678c KB |
304 | extern void remove_name_hash(struct index_state *istate, struct cache_entry *ce); |
305 | extern void free_name_hash(struct index_state *istate); | |
96872bc2 LT |
306 | |
307 | ||
4aab5b46 | 308 | #ifndef NO_THE_INDEX_COMPATIBILITY_MACROS |
228e94f9 JH |
309 | #define active_cache (the_index.cache) |
310 | #define active_nr (the_index.cache_nr) | |
311 | #define active_alloc (the_index.cache_alloc) | |
312 | #define active_cache_changed (the_index.cache_changed) | |
313 | #define active_cache_tree (the_index.cache_tree) | |
e83c5163 | 314 | |
4aab5b46 JH |
315 | #define read_cache() read_index(&the_index) |
316 | #define read_cache_from(path) read_index_from(&the_index, (path)) | |
671c9b7e | 317 | #define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec)) |
fa7b3c2f | 318 | #define is_cache_unborn() is_index_unborn(&the_index) |
e46bbcf6 | 319 | #define read_cache_unmerged() read_index_unmerged(&the_index) |
4aab5b46 JH |
320 | #define write_cache(newfd, cache, entries) write_index(&the_index, (newfd)) |
321 | #define discard_cache() discard_index(&the_index) | |
94a5728c | 322 | #define unmerged_cache() unmerged_index(&the_index) |
4aab5b46 JH |
323 | #define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen)) |
324 | #define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option)) | |
81dc2307 | 325 | #define rename_cache_entry_at(pos, new_name) rename_index_entry_at(&the_index, (pos), (new_name)) |
4aab5b46 JH |
326 | #define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos)) |
327 | #define remove_file_from_cache(path) remove_file_from_index(&the_index, (path)) | |
38ed1d89 JH |
328 | #define add_to_cache(path, st, flags) add_to_index(&the_index, (path), (st), (flags)) |
329 | #define add_file_to_cache(path, flags) add_file_to_index(&the_index, (path), (flags)) | |
3deffc52 | 330 | #define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL) |
4bd5b7da JH |
331 | #define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options)) |
332 | #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options)) | |
db5360f3 ES |
333 | #define cache_dir_exists(name, namelen) index_dir_exists(&the_index, (name), (namelen)) |
334 | #define cache_file_exists(name, namelen, igncase) index_file_exists(&the_index, (name), (namelen), (igncase)) | |
98fa4738 | 335 | #define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen)) |
cfc5789a | 336 | #define resolve_undo_clear() resolve_undo_clear_index(&the_index) |
8aa38563 | 337 | #define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at) |
4421a823 | 338 | #define unmerge_cache(pathspec) unmerge_index(&the_index, pathspec) |
ff366825 | 339 | #define read_blob_data_from_cache(path, sz) read_blob_data_from_index(&the_index, (path), (sz)) |
4aab5b46 | 340 | #endif |
e83c5163 | 341 | |
edaec3fb JH |
342 | enum object_type { |
343 | OBJ_BAD = -1, | |
344 | OBJ_NONE = 0, | |
345 | OBJ_COMMIT = 1, | |
346 | OBJ_TREE = 2, | |
347 | OBJ_BLOB = 3, | |
348 | OBJ_TAG = 4, | |
349 | /* 5 for future expansion */ | |
350 | OBJ_OFS_DELTA = 6, | |
351 | OBJ_REF_DELTA = 7, | |
355885d5 | 352 | OBJ_ANY, |
4b05548f | 353 | OBJ_MAX |
edaec3fb JH |
354 | }; |
355 | ||
b45563a2 JH |
356 | static inline enum object_type object_type(unsigned int mode) |
357 | { | |
358 | return S_ISDIR(mode) ? OBJ_TREE : | |
359 | S_ISGITLINK(mode) ? OBJ_COMMIT : | |
360 | OBJ_BLOB; | |
361 | } | |
362 | ||
2163e5db | 363 | /* Double-check local_repo_env below if you add to this list. */ |
8ac069ac | 364 | #define GIT_DIR_ENVIRONMENT "GIT_DIR" |
a1bea2c1 | 365 | #define GIT_NAMESPACE_ENVIRONMENT "GIT_NAMESPACE" |
892c41b9 | 366 | #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE" |
a6f7f9a3 | 367 | #define GIT_PREFIX_ENVIRONMENT "GIT_PREFIX" |
8ac069ac | 368 | #define DEFAULT_GIT_DIR_ENVIRONMENT ".git" |
d19938ab | 369 | #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY" |
bb233d69 | 370 | #define INDEX_ENVIRONMENT "GIT_INDEX_FILE" |
5da5c8f4 | 371 | #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE" |
069c0532 | 372 | #define GIT_SHALLOW_FILE_ENVIRONMENT "GIT_SHALLOW_FILE" |
d4ebc36c JH |
373 | #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR" |
374 | #define CONFIG_ENVIRONMENT "GIT_CONFIG" | |
2b64fc89 | 375 | #define CONFIG_DATA_ENVIRONMENT "GIT_CONFIG_PARAMETERS" |
d4ebc36c | 376 | #define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH" |
0454dd93 | 377 | #define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES" |
6476b38b | 378 | #define NO_REPLACE_OBJECTS_ENVIRONMENT "GIT_NO_REPLACE_OBJECTS" |
d0bfd026 JH |
379 | #define GITATTRIBUTES_FILE ".gitattributes" |
380 | #define INFOATTRIBUTES_FILE "info/attributes" | |
f48fd688 | 381 | #define ATTRIBUTE_MACRO_PREFIX "[attr]" |
a97a7468 JS |
382 | #define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF" |
383 | #define GIT_NOTES_DEFAULT_REF "refs/notes/commits" | |
894a9d33 | 384 | #define GIT_NOTES_DISPLAY_REF_ENVIRONMENT "GIT_NOTES_DISPLAY_REF" |
6956f858 TR |
385 | #define GIT_NOTES_REWRITE_REF_ENVIRONMENT "GIT_NOTES_REWRITE_REF" |
386 | #define GIT_NOTES_REWRITE_MODE_ENVIRONMENT "GIT_NOTES_REWRITE_MODE" | |
823ab40f | 387 | #define GIT_LITERAL_PATHSPECS_ENVIRONMENT "GIT_LITERAL_PATHSPECS" |
bd30c2e4 NTND |
388 | #define GIT_GLOB_PATHSPECS_ENVIRONMENT "GIT_GLOB_PATHSPECS" |
389 | #define GIT_NOGLOB_PATHSPECS_ENVIRONMENT "GIT_NOGLOB_PATHSPECS" | |
93d93537 | 390 | #define GIT_ICASE_PATHSPECS_ENVIRONMENT "GIT_ICASE_PATHSPECS" |
bb233d69 | 391 | |
48a7c1c4 | 392 | /* |
2cd83d10 JK |
393 | * This environment variable is expected to contain a boolean indicating |
394 | * whether we should or should not treat: | |
395 | * | |
396 | * GIT_DIR=foo.git git ... | |
397 | * | |
398 | * as if GIT_WORK_TREE=. was given. It's not expected that users will make use | |
399 | * of this, but we use it internally to communicate to sub-processes that we | |
400 | * are in a bare repo. If not set, defaults to true. | |
401 | */ | |
402 | #define GIT_IMPLICIT_WORK_TREE_ENVIRONMENT "GIT_IMPLICIT_WORK_TREE" | |
403 | ||
48a7c1c4 | 404 | /* |
2163e5db JK |
405 | * Repository-local GIT_* environment variables; these will be cleared |
406 | * when git spawns a sub-process that runs inside another repository. | |
407 | * The array is NULL-terminated, which makes it easy to pass in the "env" | |
408 | * parameter of a run-command invocation, or to do a simple walk. | |
48a7c1c4 | 409 | */ |
2163e5db | 410 | extern const char * const local_repo_env[]; |
48a7c1c4 | 411 | |
7d1864ce JH |
412 | extern int is_bare_repository_cfg; |
413 | extern int is_bare_repository(void); | |
68025633 | 414 | extern int is_inside_git_dir(void); |
e90fdc39 | 415 | extern char *git_work_tree_cfg; |
892c41b9 | 416 | extern int is_inside_work_tree(void); |
c5fba16c | 417 | extern const char *get_git_dir(void); |
b3256eb8 | 418 | extern int is_git_directory(const char *path); |
8ac069ac JH |
419 | extern char *get_object_directory(void); |
420 | extern char *get_index_file(void); | |
5da5c8f4 | 421 | extern char *get_graft_file(void); |
d7ac12b2 | 422 | extern int set_git_dir(const char *path); |
a1bea2c1 JT |
423 | extern const char *get_git_namespace(void); |
424 | extern const char *strip_namespace(const char *namespaced_ref); | |
e90fdc39 | 425 | extern const char *get_git_work_tree(void); |
13d6ec91 | 426 | extern const char *read_gitfile(const char *path); |
abc06822 | 427 | extern const char *resolve_gitdir(const char *suspect); |
19757d80 | 428 | extern void set_git_work_tree(const char *tree); |
8ac069ac JH |
429 | |
430 | #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES" | |
bb233d69 | 431 | |
6b5ee137 | 432 | extern const char **get_pathspec(const char *prefix, const char **pathspec); |
59f0f2f3 | 433 | extern void setup_work_tree(void); |
4ca06608 | 434 | extern const char *setup_git_directory_gently(int *); |
d288a700 | 435 | extern const char *setup_git_directory(void); |
edc54fb5 | 436 | extern char *prefix_path(const char *prefix, int len, const char *path); |
645a29c4 | 437 | extern char *prefix_path_gently(const char *prefix, int len, int *remaining, const char *path); |
4ca06608 | 438 | extern const char *prefix_filename(const char *prefix, int len, const char *path); |
c6e8c800 | 439 | extern int check_filename(const char *prefix, const char *name); |
023e37c3 MM |
440 | extern void verify_filename(const char *prefix, |
441 | const char *name, | |
442 | int diagnose_misspelt_rev); | |
ea92f41f | 443 | extern void verify_non_filename(const char *prefix, const char *name); |
546e0fd9 | 444 | extern int path_inside_repo(const char *prefix, const char *path); |
d288a700 | 445 | |
f225aeb2 DB |
446 | #define INIT_DB_QUIET 0x0001 |
447 | ||
b57fb80a | 448 | extern int set_git_dir_init(const char *git_dir, const char *real_git_dir, int); |
f225aeb2 DB |
449 | extern int init_db(const char *template_dir, unsigned int flags); |
450 | ||
1d999ddd | 451 | extern void sanitize_stdfds(void); |
de0957ce | 452 | extern int daemonize(void); |
1d999ddd | 453 | |
e83c5163 LT |
454 | #define alloc_nr(x) (((x)+16)*3/2) |
455 | ||
6815e569 JK |
456 | /* |
457 | * Realloc the buffer pointed at by variable 'x' so that it can hold | |
458 | * at least 'nr' entries; the number of entries currently allocated | |
459 | * is 'alloc', using the standard growing factor alloc_nr() macro. | |
460 | * | |
01f6fd4b | 461 | * DO NOT USE any expression with side-effect for 'x', 'nr', or 'alloc'. |
6815e569 JK |
462 | */ |
463 | #define ALLOC_GROW(x, nr, alloc) \ | |
464 | do { \ | |
c927e6c6 | 465 | if ((nr) > alloc) { \ |
4234a761 JH |
466 | if (alloc_nr(alloc) < (nr)) \ |
467 | alloc = (nr); \ | |
468 | else \ | |
469 | alloc = alloc_nr(alloc); \ | |
6815e569 JK |
470 | x = xrealloc((x), alloc * sizeof(*(x))); \ |
471 | } \ | |
98746061 | 472 | } while (0) |
6815e569 | 473 | |
734aab75 | 474 | /* Initialize and use the cache information */ |
4aab5b46 | 475 | extern int read_index(struct index_state *); |
5ab2a2da | 476 | extern int read_index_preload(struct index_state *, const struct pathspec *pathspec); |
4aab5b46 | 477 | extern int read_index_from(struct index_state *, const char *path); |
fa7b3c2f | 478 | extern int is_index_unborn(struct index_state *); |
e46bbcf6 | 479 | extern int read_index_unmerged(struct index_state *); |
e1afca4f | 480 | extern int write_index(struct index_state *, int newfd); |
4aab5b46 | 481 | extern int discard_index(struct index_state *); |
d1f128b0 | 482 | extern int unmerged_index(const struct index_state *); |
8dcf39c4 | 483 | extern int verify_path(const char *path); |
db5360f3 ES |
484 | extern struct cache_entry *index_dir_exists(struct index_state *istate, const char *name, int namelen); |
485 | extern struct cache_entry *index_file_exists(struct index_state *istate, const char *name, int namelen, int igncase); | |
d1f128b0 | 486 | extern int index_name_pos(const struct index_state *, const char *name, int namelen); |
192268c1 JH |
487 | #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */ |
488 | #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */ | |
b155725d | 489 | #define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */ |
af3785dc | 490 | #define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */ |
39425819 | 491 | #define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */ |
4aab5b46 | 492 | extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option); |
81dc2307 | 493 | extern void rename_index_entry_at(struct index_state *, int pos, const char *new_name); |
4aab5b46 | 494 | extern int remove_index_entry_at(struct index_state *, int pos); |
36419c8e | 495 | extern void remove_marked_cache_entries(struct index_state *istate); |
4aab5b46 | 496 | extern int remove_file_from_index(struct index_state *, const char *path); |
38ed1d89 JH |
497 | #define ADD_CACHE_VERBOSE 1 |
498 | #define ADD_CACHE_PRETEND 2 | |
01665924 | 499 | #define ADD_CACHE_IGNORE_ERRORS 4 |
041aee31 | 500 | #define ADD_CACHE_IGNORE_REMOVAL 8 |
39425819 | 501 | #define ADD_CACHE_INTENT 16 |
38ed1d89 JH |
502 | extern int add_to_index(struct index_state *, const char *path, struct stat *, int flags); |
503 | extern int add_file_to_index(struct index_state *, const char *path, int flags); | |
25762726 | 504 | extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, unsigned int refresh_options); |
9c5e6c80 | 505 | extern int ce_same_name(const struct cache_entry *a, const struct cache_entry *b); |
b4b313f9 | 506 | extern void set_object_name_for_intent_to_add_entry(struct cache_entry *ce); |
98fa4738 | 507 | extern int index_name_is_other(const struct index_state *, const char *, int); |
ff366825 | 508 | extern void *read_blob_data_from_index(struct index_state *, const char *, unsigned long *); |
4bd5b7da JH |
509 | |
510 | /* do stat comparison even if CE_VALID is true */ | |
511 | #define CE_MATCH_IGNORE_VALID 01 | |
512 | /* do not check the contents but report dirty on racily-clean entries */ | |
56cac48c NTND |
513 | #define CE_MATCH_RACY_IS_DIRTY 02 |
514 | /* do stat comparison even if CE_SKIP_WORKTREE is true */ | |
515 | #define CE_MATCH_IGNORE_SKIP_WORKTREE 04 | |
2e2e7ec1 BK |
516 | /* ignore non-existent files during stat update */ |
517 | #define CE_MATCH_IGNORE_MISSING 0x08 | |
25762726 BK |
518 | /* enable stat refresh */ |
519 | #define CE_MATCH_REFRESH 0x10 | |
21a6b9fa RS |
520 | extern int ie_match_stat(const struct index_state *, const struct cache_entry *, struct stat *, unsigned int); |
521 | extern int ie_modified(const struct index_state *, const struct cache_entry *, struct stat *, unsigned int); | |
4bd5b7da | 522 | |
c4ce46fc JH |
523 | #define HASH_WRITE_OBJECT 1 |
524 | #define HASH_FORMAT_CHECK 2 | |
525 | extern int index_fd(unsigned char *sha1, int fd, struct stat *st, enum object_type type, const char *path, unsigned flags); | |
526 | extern int index_path(unsigned char *sha1, const char *path, struct stat *st, unsigned flags); | |
c21d39d7 MH |
527 | |
528 | /* | |
529 | * Record to sd the data from st that we use to check whether a file | |
530 | * might have changed. | |
531 | */ | |
532 | extern void fill_stat_data(struct stat_data *sd, struct stat *st); | |
533 | ||
534 | /* | |
535 | * Return 0 if st is consistent with a file not having been changed | |
536 | * since sd was filled. If there are differences, return a | |
537 | * combination of MTIME_CHANGED, CTIME_CHANGED, OWNER_CHANGED, | |
538 | * INODE_CHANGED, and DATA_CHANGED. | |
539 | */ | |
540 | extern int match_stat_data(const struct stat_data *sd, struct stat *st); | |
541 | ||
415e96c8 JH |
542 | extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st); |
543 | ||
405e5b2f LT |
544 | #define REFRESH_REALLY 0x0001 /* ignore_valid */ |
545 | #define REFRESH_UNMERGED 0x0002 /* allow unmerged */ | |
546 | #define REFRESH_QUIET 0x0004 /* be quiet about it */ | |
547 | #define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */ | |
3f1b7b60 | 548 | #define REFRESH_IGNORE_SUBMODULES 0x0010 /* ignore submodules */ |
43673fdd | 549 | #define REFRESH_IN_PORCELAIN 0x0020 /* user friendly output, not "needs update" */ |
9b2d6149 | 550 | extern int refresh_index(struct index_state *, unsigned int flags, const struct pathspec *pathspec, char *seen, const char *header_msg); |
405e5b2f | 551 | |
021b6e45 JH |
552 | struct lock_file { |
553 | struct lock_file *next; | |
4723ee99 | 554 | int fd; |
5e635e39 | 555 | pid_t owner; |
1084b845 | 556 | char on_list; |
021b6e45 | 557 | char filename[PATH_MAX]; |
415e96c8 | 558 | }; |
acd3b9ec JH |
559 | #define LOCK_DIE_ON_ERROR 1 |
560 | #define LOCK_NODEREF 2 | |
1b018fd9 | 561 | extern int unable_to_lock_error(const char *path, int err); |
e43a6fd3 | 562 | extern NORETURN void unable_to_lock_index_die(const char *path, int err); |
40aaae88 | 563 | extern int hold_lock_file_for_update(struct lock_file *, const char *path, int); |
ea3cd5c7 | 564 | extern int hold_lock_file_for_append(struct lock_file *, const char *path, int); |
021b6e45 | 565 | extern int commit_lock_file(struct lock_file *); |
ccdc4ec3 | 566 | extern void update_index_if_able(struct index_state *, struct lock_file *); |
30ca07a2 JH |
567 | |
568 | extern int hold_locked_index(struct lock_file *, int); | |
569 | extern int commit_locked_index(struct lock_file *); | |
5e7f56ac | 570 | extern void set_alternate_index_output(const char *); |
d6cf61bf | 571 | extern int close_lock_file(struct lock_file *); |
021b6e45 | 572 | extern void rollback_lock_file(struct lock_file *); |
eca35a25 | 573 | extern int delete_ref(const char *, const unsigned char *sha1, int delopt); |
734aab75 | 574 | |
2ae1c53b | 575 | /* Environment bits from configuration mechanism */ |
17712991 | 576 | extern int trust_executable_bit; |
1ce4790b | 577 | extern int trust_ctime; |
c08e4d5b | 578 | extern int check_stat; |
9378c161 | 579 | extern int quote_path_fully; |
78a8d641 | 580 | extern int has_symlinks; |
dce96489 | 581 | extern int minimum_abbrev, default_abbrev; |
0a9b88b7 | 582 | extern int ignore_case; |
5f73076c | 583 | extern int assume_unchanged; |
9f0bb90d | 584 | extern int prefer_symlink_refs; |
6de08ae6 | 585 | extern int log_all_ref_updates; |
2f8acdb3 | 586 | extern int warn_ambiguous_refs; |
25fba78d | 587 | extern int warn_on_object_refname_ambiguity; |
457f06d6 | 588 | extern int shared_repository; |
2ae1c53b | 589 | extern const char *apply_default_whitespace; |
86c91f91 | 590 | extern const char *apply_default_ignorewhitespace; |
64589a03 | 591 | extern const char *git_attributes_file; |
12f6c308 | 592 | extern int zlib_compression_level; |
960ccca6 DH |
593 | extern int core_compression_level; |
594 | extern int core_compression_seen; | |
60bb8b14 | 595 | extern size_t packed_git_window_size; |
77ccc5bb | 596 | extern size_t packed_git_limit; |
18bdec11 | 597 | extern size_t delta_base_cache_limit; |
15366280 | 598 | extern unsigned long big_file_threshold; |
568508e7 | 599 | extern unsigned long pack_size_limit_cfg; |
afc711b8 MH |
600 | |
601 | /* | |
602 | * Do replace refs need to be checked this run? This variable is | |
603 | * initialized to true unless --no-replace-object is used or | |
604 | * $GIT_NO_REPLACE_OBJECTS is set, but is set to false by some | |
605 | * commands that do not want replace references to be active. As an | |
606 | * optimization it is also set to false if replace references have | |
607 | * been sought but there were none. | |
608 | */ | |
609 | extern int check_replace_refs; | |
610 | ||
aafe9fba | 611 | extern int fsync_object_files; |
671c9b7e | 612 | extern int core_preload_index; |
08aefc9e | 613 | extern int core_apply_sparse_checkout; |
76759c7d | 614 | extern int precomposed_unicode; |
17712991 | 615 | |
eff80a9f JH |
616 | /* |
617 | * The character that begins a commented line in user-editable file | |
618 | * that is subject to stripspace. | |
619 | */ | |
620 | extern char comment_line_char; | |
84c9dc2c | 621 | extern int auto_comment_line_char; |
eff80a9f | 622 | |
9ed36cfa | 623 | enum branch_track { |
9188ed89 | 624 | BRANCH_TRACK_UNSPECIFIED = -1, |
9ed36cfa JS |
625 | BRANCH_TRACK_NEVER = 0, |
626 | BRANCH_TRACK_REMOTE, | |
627 | BRANCH_TRACK_ALWAYS, | |
628 | BRANCH_TRACK_EXPLICIT, | |
4b05548f | 629 | BRANCH_TRACK_OVERRIDE |
9ed36cfa JS |
630 | }; |
631 | ||
c998ae9b DS |
632 | enum rebase_setup_type { |
633 | AUTOREBASE_NEVER = 0, | |
634 | AUTOREBASE_LOCAL, | |
635 | AUTOREBASE_REMOTE, | |
4b05548f | 636 | AUTOREBASE_ALWAYS |
c998ae9b DS |
637 | }; |
638 | ||
52153747 | 639 | enum push_default_type { |
52153747 FAG |
640 | PUSH_DEFAULT_NOTHING = 0, |
641 | PUSH_DEFAULT_MATCHING, | |
b55e6775 | 642 | PUSH_DEFAULT_SIMPLE, |
53c40311 | 643 | PUSH_DEFAULT_UPSTREAM, |
f25950f3 CT |
644 | PUSH_DEFAULT_CURRENT, |
645 | PUSH_DEFAULT_UNSPECIFIED | |
52153747 FAG |
646 | }; |
647 | ||
9ed36cfa | 648 | extern enum branch_track git_branch_track; |
c998ae9b | 649 | extern enum rebase_setup_type autorebase; |
52153747 | 650 | extern enum push_default_type push_default; |
9ed36cfa | 651 | |
348df166 JS |
652 | enum object_creation_mode { |
653 | OBJECT_CREATION_USES_HARDLINKS = 0, | |
4b05548f | 654 | OBJECT_CREATION_USES_RENAMES = 1 |
348df166 JS |
655 | }; |
656 | ||
657 | extern enum object_creation_mode object_creation_mode; | |
be66a6c4 | 658 | |
a97a7468 JS |
659 | extern char *notes_ref_name; |
660 | ||
7f3140cd JS |
661 | extern int grafts_replace_parents; |
662 | ||
ab9cb76f JH |
663 | #define GIT_REPO_VERSION 0 |
664 | extern int repository_format_version; | |
665 | extern int check_repository_format(void); | |
666 | ||
734aab75 LT |
667 | #define MTIME_CHANGED 0x0001 |
668 | #define CTIME_CHANGED 0x0002 | |
669 | #define OWNER_CHANGED 0x0004 | |
670 | #define MODE_CHANGED 0x0008 | |
671 | #define INODE_CHANGED 0x0010 | |
672 | #define DATA_CHANGED 0x0020 | |
8ae0a8c5 | 673 | #define TYPE_CHANGED 0x0040 |
e83c5163 | 674 | |
108bebea AR |
675 | extern char *mksnpath(char *buf, size_t n, const char *fmt, ...) |
676 | __attribute__((format (printf, 3, 4))); | |
fe2d7776 AR |
677 | extern char *git_snpath(char *buf, size_t n, const char *fmt, ...) |
678 | __attribute__((format (printf, 3, 4))); | |
aba13e7c AR |
679 | extern char *git_pathdup(const char *fmt, ...) |
680 | __attribute__((format (printf, 1, 2))); | |
21cf3227 HKNN |
681 | extern char *mkpathdup(const char *fmt, ...) |
682 | __attribute__((format (printf, 1, 2))); | |
108bebea | 683 | |
e83c5163 | 684 | /* Return a statically allocated filename matching the sha1 signature */ |
4ec99bf0 TS |
685 | extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2))); |
686 | extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2))); | |
0bad611b HV |
687 | extern char *git_path_submodule(const char *path, const char *fmt, ...) |
688 | __attribute__((format (printf, 2, 3))); | |
689 | ||
d40d535b MH |
690 | /* |
691 | * Return the name of the file in the local object database that would | |
692 | * be used to store a loose object with the specified sha1. The | |
693 | * return value is a pointer to a statically allocated buffer that is | |
694 | * overwritten each time the function is called. | |
695 | */ | |
30d6c6ea | 696 | extern const char *sha1_file_name(const unsigned char *sha1); |
d40d535b MH |
697 | |
698 | /* | |
699 | * Return the name of the (local) packfile with the specified sha1 in | |
700 | * its name. The return value is a pointer to memory that is | |
701 | * overwritten each time this function is called. | |
702 | */ | |
bf592c50 | 703 | extern char *sha1_pack_name(const unsigned char *sha1); |
d40d535b MH |
704 | |
705 | /* | |
706 | * Return the name of the (local) pack index file with the specified | |
707 | * sha1 in its name. The return value is a pointer to memory that is | |
708 | * overwritten each time this function is called. | |
709 | */ | |
bf592c50 | 710 | extern char *sha1_pack_index_name(const unsigned char *sha1); |
d40d535b | 711 | |
013f276e | 712 | extern const char *find_unique_abbrev(const unsigned char *sha1, int); |
88cd621d | 713 | extern const unsigned char null_sha1[20]; |
1a812f3a IM |
714 | |
715 | static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2) | |
0bef57ee | 716 | { |
1a812f3a IM |
717 | int i; |
718 | ||
719 | for (i = 0; i < 20; i++, sha1++, sha2++) { | |
720 | if (*sha1 != *sha2) | |
721 | return *sha1 - *sha2; | |
722 | } | |
723 | ||
724 | return 0; | |
0bef57ee | 725 | } |
1a812f3a IM |
726 | |
727 | static inline int is_null_sha1(const unsigned char *sha1) | |
a89fccd2 | 728 | { |
1a812f3a | 729 | return !hashcmp(sha1, null_sha1); |
a89fccd2 | 730 | } |
1a812f3a | 731 | |
e702496e SP |
732 | static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src) |
733 | { | |
734 | memcpy(sha_dst, sha_src, 20); | |
735 | } | |
a8e0d16d JH |
736 | static inline void hashclr(unsigned char *hash) |
737 | { | |
738 | memset(hash, 0, 20); | |
739 | } | |
e83c5163 | 740 | |
14d9c578 JK |
741 | #define EMPTY_TREE_SHA1_HEX \ |
742 | "4b825dc642cb6eb9a060e54bf8d69288fbee4904" | |
dab0d410 | 743 | #define EMPTY_TREE_SHA1_BIN_LITERAL \ |
14d9c578 JK |
744 | "\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" \ |
745 | "\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04" | |
dab0d410 JN |
746 | #define EMPTY_TREE_SHA1_BIN \ |
747 | ((const unsigned char *) EMPTY_TREE_SHA1_BIN_LITERAL) | |
14d9c578 | 748 | |
f8582cad JK |
749 | #define EMPTY_BLOB_SHA1_HEX \ |
750 | "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391" | |
751 | #define EMPTY_BLOB_SHA1_BIN_LITERAL \ | |
752 | "\xe6\x9d\xe2\x9b\xb2\xd1\xd6\x43\x4b\x8b" \ | |
753 | "\x29\xae\x77\x5a\xd8\xc2\xe4\x8c\x53\x91" | |
754 | #define EMPTY_BLOB_SHA1_BIN \ | |
755 | ((const unsigned char *) EMPTY_BLOB_SHA1_BIN_LITERAL) | |
756 | ||
757 | static inline int is_empty_blob_sha1(const unsigned char *sha1) | |
758 | { | |
759 | return !hashcmp(sha1, EMPTY_BLOB_SHA1_BIN); | |
760 | } | |
761 | ||
f2db68ed HE |
762 | int git_mkstemp(char *path, size_t n, const char *template); |
763 | ||
003b33a8 DA |
764 | int git_mkstemps(char *path, size_t n, const char *template, int suffix_len); |
765 | ||
b862b61c MM |
766 | /* set default permissions by passing mode arguments to open(2) */ |
767 | int git_mkstemps_mode(char *pattern, int suffix_len, int mode); | |
768 | int git_mkstemp_mode(char *pattern, int mode); | |
769 | ||
06cbe855 HO |
770 | /* |
771 | * NOTE NOTE NOTE!! | |
772 | * | |
773 | * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must | |
774 | * not be changed. Old repositories have core.sharedrepository written in | |
775 | * numeric format, and therefore these values are preserved for compatibility | |
776 | * reasons. | |
777 | */ | |
94df2506 | 778 | enum sharedrepo { |
06cbe855 HO |
779 | PERM_UMASK = 0, |
780 | OLD_PERM_GROUP = 1, | |
781 | OLD_PERM_EVERYBODY = 2, | |
782 | PERM_GROUP = 0660, | |
4b05548f | 783 | PERM_EVERYBODY = 0664 |
94df2506 JH |
784 | }; |
785 | int git_config_perm(const char *var, const char *value); | |
3a429d3b | 786 | int adjust_shared_perm(const char *path); |
0be0521b MH |
787 | |
788 | /* | |
789 | * Create the directory containing the named path, using care to be | |
790 | * somewhat safe against races. Return one of the scld_error values | |
791 | * to indicate success/failure. | |
18d37e86 MH |
792 | * |
793 | * SCLD_VANISHED indicates that one of the ancestor directories of the | |
794 | * path existed at one point during the function call and then | |
795 | * suddenly vanished, probably because another process pruned the | |
796 | * directory while we were working. To be robust against this kind of | |
797 | * race, callers might want to try invoking the function again when it | |
798 | * returns SCLD_VANISHED. | |
0be0521b MH |
799 | */ |
800 | enum scld_error { | |
801 | SCLD_OK = 0, | |
802 | SCLD_FAILED = -1, | |
803 | SCLD_PERMS = -2, | |
18d37e86 MH |
804 | SCLD_EXISTS = -3, |
805 | SCLD_VANISHED = -4 | |
0be0521b MH |
806 | }; |
807 | enum scld_error safe_create_leading_directories(char *path); | |
808 | enum scld_error safe_create_leading_directories_const(const char *path); | |
809 | ||
90a6464b | 810 | int mkdir_in_gitdir(const char *path); |
21cf3227 | 811 | extern void home_config_paths(char **global, char **xdg, char *file); |
395de250 | 812 | extern char *expand_user_path(const char *path); |
1c64b48e | 813 | const char *enter_repo(const char *path, int strict); |
e5392c51 JS |
814 | static inline int is_absolute_path(const char *path) |
815 | { | |
88135203 | 816 | return is_dir_sep(path[0]) || has_dos_drive_prefix(path); |
e5392c51 | 817 | } |
90b4a71c | 818 | int is_directory(const char *); |
e2a57aac | 819 | const char *real_path(const char *path); |
e3e46cdb | 820 | const char *real_path_if_valid(const char *path); |
e2a57aac | 821 | const char *absolute_path(const char *path); |
41894ae3 | 822 | const char *remove_leading_path(const char *in, const char *prefix); |
e02ca72f | 823 | const char *relative_path(const char *in, const char *prefix, struct strbuf *sb); |
645a29c4 | 824 | int normalize_path_copy_len(char *dst, const char *src, int *prefix_len); |
f3cad0ad | 825 | int normalize_path_copy(char *dst, const char *src); |
31171d9e | 826 | int longest_ancestor_length(const char *path, struct string_list *prefixes); |
4fcc86b0 | 827 | char *strip_path_suffix(const char *path, const char *suffix); |
34b6cb8b | 828 | int daemon_avoid_alias(const char *path); |
b2cb9425 | 829 | |
e1111cef | 830 | /* object replacement */ |
ffe68cf9 | 831 | #define LOOKUP_REPLACE_OBJECT 1 |
5bf29b95 | 832 | extern void *read_sha1_file_extended(const unsigned char *sha1, enum object_type *type, unsigned long *size, unsigned flag); |
f5552aee CC |
833 | static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size) |
834 | { | |
ffe68cf9 | 835 | return read_sha1_file_extended(sha1, type, size, LOOKUP_REPLACE_OBJECT); |
5bf29b95 | 836 | } |
1f91e79c MH |
837 | |
838 | /* | |
839 | * This internal function is only declared here for the benefit of | |
840 | * lookup_replace_object(). Please do not call it directly. | |
841 | */ | |
e1111cef | 842 | extern const unsigned char *do_lookup_replace_object(const unsigned char *sha1); |
1f91e79c MH |
843 | |
844 | /* | |
845 | * If object sha1 should be replaced, return the replacement object's | |
846 | * name (replaced recursively, if necessary). The return value is | |
847 | * either sha1 or a pointer to a permanently-allocated value. When | |
848 | * object replacement is suppressed, always return sha1. | |
849 | */ | |
e1111cef JH |
850 | static inline const unsigned char *lookup_replace_object(const unsigned char *sha1) |
851 | { | |
afc711b8 | 852 | if (!check_replace_refs) |
e1111cef JH |
853 | return sha1; |
854 | return do_lookup_replace_object(sha1); | |
f5552aee | 855 | } |
1f91e79c | 856 | |
bf93eea0 CC |
857 | static inline const unsigned char *lookup_replace_object_extended(const unsigned char *sha1, unsigned flag) |
858 | { | |
859 | if (!(flag & LOOKUP_REPLACE_OBJECT)) | |
860 | return sha1; | |
861 | return lookup_replace_object(sha1); | |
862 | } | |
e1111cef | 863 | |
e83c5163 | 864 | /* Read and unpack a sha1 file into memory, write memory to a sha1 file */ |
21666f1a | 865 | extern int sha1_object_info(const unsigned char *, unsigned long *); |
ce9fbf16 | 866 | extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1); |
c00e657d | 867 | extern int write_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *return_sha1); |
21666f1a | 868 | extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *); |
bbac7311 | 869 | extern int force_object_loose(const unsigned char *sha1, time_t mtime); |
ec73f580 | 870 | extern int git_open_noatime(const char *name); |
f0270efd | 871 | extern void *map_sha1_file(const unsigned char *sha1, unsigned long *size); |
eb4f4076 | 872 | extern int unpack_sha1_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz); |
f0270efd | 873 | extern int parse_sha1_header(const char *hdr, unsigned long *sizep); |
8237b185 | 874 | |
0e8189e2 NP |
875 | /* global flag to enable extra checks when accessing packed objects */ |
876 | extern int do_check_packed_object_crc; | |
877 | ||
5d6ccf5c | 878 | extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type); |
e83c5163 | 879 | |
839837b9 | 880 | extern int move_temp_to_file(const char *tmpfile, const char *filename); |
8237b185 | 881 | |
cd673c1f | 882 | extern int has_sha1_pack(const unsigned char *sha1); |
d40d535b MH |
883 | |
884 | /* | |
885 | * Return true iff we have an object named sha1, whether local or in | |
886 | * an alternate object database, and whether packed or loose. This | |
887 | * function does not respect replace references. | |
888 | */ | |
8237b185 | 889 | extern int has_sha1_file(const unsigned char *sha1); |
d40d535b MH |
890 | |
891 | /* | |
892 | * Return true iff an alternate object database has a loose object | |
893 | * with the specified name. This function does not respect replace | |
894 | * references. | |
895 | */ | |
0f4dc14a | 896 | extern int has_loose_object_nonlocal(const unsigned char *sha1); |
8237b185 | 897 | |
bf592c50 DB |
898 | extern int has_pack_index(const unsigned char *sha1); |
899 | ||
40d52ff7 JK |
900 | extern void assert_sha1_type(const unsigned char *sha1, enum object_type expect); |
901 | ||
192a6be2 LT |
902 | extern const signed char hexval_table[256]; |
903 | static inline unsigned int hexval(unsigned char c) | |
e49521b5 JH |
904 | { |
905 | return hexval_table[c]; | |
906 | } | |
907 | ||
e83c5163 | 908 | /* Convert to/from hex/sha1 representation */ |
dce96489 LT |
909 | #define MINIMUM_ABBREV minimum_abbrev |
910 | #define DEFAULT_ABBREV default_abbrev | |
46a6c262 | 911 | |
573285e5 CP |
912 | struct object_context { |
913 | unsigned char tree[20]; | |
914 | char path[PATH_MAX]; | |
915 | unsigned mode; | |
916 | }; | |
917 | ||
daba53ae JH |
918 | #define GET_SHA1_QUIETLY 01 |
919 | #define GET_SHA1_COMMIT 02 | |
920 | #define GET_SHA1_COMMITTISH 04 | |
921 | #define GET_SHA1_TREE 010 | |
922 | #define GET_SHA1_TREEISH 020 | |
923 | #define GET_SHA1_BLOB 040 | |
33bd598c | 924 | #define GET_SHA1_ONLY_TO_DIE 04000 |
37c00e55 | 925 | |
3c249c95 | 926 | extern int get_sha1(const char *str, unsigned char *sha1); |
daba53ae | 927 | extern int get_sha1_commit(const char *str, unsigned char *sha1); |
cd74e473 | 928 | extern int get_sha1_committish(const char *str, unsigned char *sha1); |
daba53ae JH |
929 | extern int get_sha1_tree(const char *str, unsigned char *sha1); |
930 | extern int get_sha1_treeish(const char *str, unsigned char *sha1); | |
931 | extern int get_sha1_blob(const char *str, unsigned char *sha1); | |
8c135ea2 | 932 | extern void maybe_die_on_misspelt_object_name(const char *name, const char *prefix); |
33bd598c | 933 | extern int get_sha1_with_context(const char *str, unsigned flags, unsigned char *sha1, struct object_context *orc); |
d4e85a1a | 934 | |
957d7406 JH |
935 | typedef int each_abbrev_fn(const unsigned char *sha1, void *); |
936 | extern int for_each_abbrev(const char *prefix, each_abbrev_fn, void *); | |
d4e85a1a MH |
937 | |
938 | /* | |
939 | * Try to read a SHA1 in hexadecimal format from the 40 characters | |
940 | * starting at hex. Write the 20-byte result to sha1 in binary form. | |
941 | * Return 0 on success. Reading stops if a NUL is encountered in the | |
942 | * input, so it is safe to pass this function an arbitrary | |
943 | * null-terminated string. | |
944 | */ | |
197ee8c9 | 945 | extern int get_sha1_hex(const char *hex, unsigned char *sha1); |
d4e85a1a | 946 | |
197ee8c9 | 947 | extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */ |
dfefa935 | 948 | extern int read_ref_full(const char *refname, unsigned char *sha1, |
c6893323 | 949 | int reading, int *flags); |
dfefa935 | 950 | extern int read_ref(const char *refname, unsigned char *sha1); |
7cb36842 MH |
951 | |
952 | /* | |
953 | * Resolve a reference, recursively following symbolic refererences. | |
954 | * | |
955 | * Store the referred-to object's name in sha1 and return the name of | |
956 | * the non-symbolic reference that ultimately pointed at it. The | |
957 | * return value, if not NULL, is a pointer into either a static buffer | |
958 | * or the input ref. | |
959 | * | |
960 | * If the reference cannot be resolved to an object, the behavior | |
961 | * depends on the "reading" argument: | |
962 | * | |
963 | * - If reading is set, return NULL. | |
964 | * | |
965 | * - If reading is not set, clear sha1 and return the name of the last | |
966 | * reference name in the chain, which will either be a non-symbolic | |
967 | * reference or an undefined reference. If this is a prelude to | |
968 | * "writing" to the ref, the return value is the name of the ref | |
969 | * that will actually be created or changed. | |
970 | * | |
971 | * If flag is non-NULL, set the value that it points to the | |
972 | * combination of REF_ISPACKED (if the reference was found among the | |
973 | * packed references) and REF_ISSYMREF (if the initial reference was a | |
974 | * symbolic reference). | |
975 | * | |
976 | * If ref is not a properly-formatted, normalized reference, return | |
977 | * NULL. If more than MAXDEPTH recursive symbolic lookups are needed, | |
978 | * give up and return NULL. | |
979 | * | |
980 | * errno is sometimes set on errors, but not always. | |
981 | */ | |
8cad4744 | 982 | extern const char *resolve_ref_unsafe(const char *ref, unsigned char *sha1, int reading, int *flag); |
96ec7b1e | 983 | extern char *resolve_refdup(const char *ref, unsigned char *sha1, int reading, int *flag); |
7cb36842 | 984 | |
e86eb666 | 985 | extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref); |
eb3a4822 | 986 | extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref); |
cf99a761 | 987 | extern int interpret_branch_name(const char *str, int len, struct strbuf *); |
619a644d | 988 | extern int get_sha1_mb(const char *str, unsigned char *sha1); |
e86eb666 | 989 | |
54457fe5 MH |
990 | /* |
991 | * Return true iff abbrev_name is a possible abbreviation for | |
992 | * full_name according to the rules defined by ref_rev_parse_rules in | |
993 | * refs.c. | |
994 | */ | |
995 | extern int refname_match(const char *abbrev_name, const char *full_name); | |
79803322 | 996 | |
8b5157e4 | 997 | extern int create_symref(const char *ref, const char *refs_heads_master, const char *logmsg); |
c847f537 | 998 | extern int validate_headref(const char *ref); |
e83c5163 | 999 | |
958ba6c9 | 1000 | extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2); |
0ab9e1e8 | 1001 | extern int df_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2); |
79517a06 | 1002 | extern int cache_name_compare(const char *name1, int len1, const char *name2, int len2); |
b60e188c | 1003 | extern int cache_name_stage_compare(const char *name1, int len1, int stage1, const char *name2, int len2, int stage2); |
e83c5163 | 1004 | |
40469ee9 | 1005 | extern void *read_object_with_reference(const unsigned char *sha1, |
bf0f910d | 1006 | const char *required_type, |
40469ee9 JH |
1007 | unsigned long *size, |
1008 | unsigned char *sha1_ret); | |
f4913f91 | 1009 | |
81776315 JH |
1010 | extern struct object *peel_to_type(const char *name, int namelen, |
1011 | struct object *o, enum object_type); | |
1012 | ||
73013afd JH |
1013 | enum date_mode { |
1014 | DATE_NORMAL = 0, | |
1015 | DATE_RELATIVE, | |
1016 | DATE_SHORT, | |
1017 | DATE_LOCAL, | |
1018 | DATE_ISO8601, | |
7dff9b30 LT |
1019 | DATE_RFC2822, |
1020 | DATE_RAW | |
73013afd JH |
1021 | }; |
1022 | ||
f8493ec0 | 1023 | const char *show_date(unsigned long time, int timezone, enum date_mode mode); |
7d29afd4 JN |
1024 | void show_date_relative(unsigned long time, int tz, const struct timeval *now, |
1025 | struct strbuf *timebuf); | |
2a39064c | 1026 | int parse_date(const char *date, char *buf, int bufsize); |
9644c061 | 1027 | int parse_date_basic(const char *date, unsigned long *timestamp, int *offset); |
3d27b9b0 | 1028 | int parse_expiry_date(const char *date, unsigned long *timestamp); |
ecee9d9e | 1029 | void datestamp(char *buf, int bufsize); |
93cfa7c7 JH |
1030 | #define approxidate(s) approxidate_careful((s), NULL) |
1031 | unsigned long approxidate_careful(const char *, int *); | |
33012fc4 | 1032 | unsigned long approxidate_relative(const char *date, const struct timeval *now); |
856665f8 | 1033 | enum date_mode parse_date_format(const char *format); |
7ca36d93 | 1034 | int date_overflows(unsigned long date); |
ecee9d9e | 1035 | |
f9bc573f | 1036 | #define IDENT_STRICT 1 |
b9f0ac17 | 1037 | #define IDENT_NO_DATE 2 |
c15e1987 | 1038 | #define IDENT_NO_NAME 4 |
749be728 JH |
1039 | extern const char *git_author_info(int); |
1040 | extern const char *git_committer_info(int); | |
798123af | 1041 | extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int); |
d9ccfe77 | 1042 | extern const char *fmt_name(const char *name, const char *email); |
bcb2b004 | 1043 | extern const char *ident_default_email(void); |
44fcb497 | 1044 | extern const char *git_editor(void); |
64778d24 | 1045 | extern const char *git_pager(int stdout_is_tty); |
9597921b | 1046 | extern int git_ident_config(const char *, const char *, void *); |
6aa33f40 | 1047 | |
4b340cfa JH |
1048 | struct ident_split { |
1049 | const char *name_begin; | |
1050 | const char *name_end; | |
1051 | const char *mail_begin; | |
1052 | const char *mail_end; | |
1053 | const char *date_begin; | |
1054 | const char *date_end; | |
1055 | const char *tz_begin; | |
1056 | const char *tz_end; | |
1057 | }; | |
1058 | /* | |
1059 | * Signals an success with 0, but time part of the result may be NULL | |
1060 | * if the input lacks timestamp and zone | |
1061 | */ | |
1062 | extern int split_ident_line(struct ident_split *, const char *, int); | |
1063 | ||
d1053246 JK |
1064 | /* |
1065 | * Like show_date, but pull the timestamp and tz parameters from | |
1066 | * the ident_split. It will also sanity-check the values and produce | |
1067 | * a well-known sentinel date if they appear bogus. | |
1068 | */ | |
1069 | const char *show_ident_date(const struct ident_split *id, enum date_mode mode); | |
1070 | ||
662cc30c JK |
1071 | /* |
1072 | * Compare split idents for equality or strict ordering. Note that we | |
1073 | * compare only the ident part of the line, ignoring any timestamp. | |
1074 | * | |
1075 | * Because there are two fields, we must choose one as the primary key; we | |
1076 | * currently arbitrarily pick the email. | |
1077 | */ | |
1078 | extern int ident_cmp(const struct ident_split *, const struct ident_split *); | |
1079 | ||
12dccc16 LT |
1080 | struct checkout { |
1081 | const char *base_dir; | |
1082 | int base_dir_len; | |
1083 | unsigned force:1, | |
1084 | quiet:1, | |
1085 | not_new:1, | |
1086 | refresh_cache:1; | |
1087 | }; | |
1088 | ||
af2a651d | 1089 | #define TEMPORARY_FILENAME_LENGTH 25 |
efbc5831 | 1090 | extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath); |
b9fd2846 LT |
1091 | |
1092 | struct cache_def { | |
1093 | char path[PATH_MAX + 1]; | |
1094 | int len; | |
1095 | int flags; | |
1096 | int track_flags; | |
1097 | int prefix_len_stat_func; | |
1098 | }; | |
1099 | ||
57199892 | 1100 | extern int has_symlink_leading_path(const char *name, int len); |
b9fd2846 | 1101 | extern int threaded_has_symlink_leading_path(struct cache_def *, const char *, int); |
f66caaf9 | 1102 | extern int check_leading_path(const char *name, int len); |
57199892 | 1103 | extern int has_dirs_only_path(const char *name, int len, int prefix_len); |
78478927 KB |
1104 | extern void schedule_dir_for_removal(const char *name, int len); |
1105 | extern void remove_scheduled_dirs(void); | |
12dccc16 | 1106 | |
9a217f2a | 1107 | extern struct alternate_object_database { |
d5a63b99 | 1108 | struct alternate_object_database *next; |
9a217f2a | 1109 | char *name; |
8f1d2e6f | 1110 | char base[FLEX_ARRAY]; /* more */ |
d5a63b99 | 1111 | } *alt_odb_list; |
9a217f2a | 1112 | extern void prepare_alt_odb(void); |
5e73633d | 1113 | extern void read_info_alternates(const char * relative_base, int depth); |
bef70b22 | 1114 | extern void add_to_alternates_file(const char *reference); |
d79796bc JH |
1115 | typedef int alt_odb_fn(struct alternate_object_database *, void *); |
1116 | extern void foreach_alt_odb(alt_odb_fn, void*); | |
9a217f2a | 1117 | |
c41ee586 SP |
1118 | struct pack_window { |
1119 | struct pack_window *next; | |
1120 | unsigned char *base; | |
1121 | off_t offset; | |
1122 | size_t len; | |
1123 | unsigned int last_used; | |
1124 | unsigned int inuse_cnt; | |
1125 | }; | |
1126 | ||
9a217f2a JH |
1127 | extern struct packed_git { |
1128 | struct packed_git *next; | |
c41ee586 | 1129 | struct pack_window *windows; |
2dc3a234 | 1130 | off_t pack_size; |
57059091 NP |
1131 | const void *index_data; |
1132 | size_t index_size; | |
1133 | uint32_t num_objects; | |
8eca0b47 NP |
1134 | uint32_t num_bad_objects; |
1135 | unsigned char *bad_object_sha1; | |
42873078 | 1136 | int index_version; |
57059091 | 1137 | time_t mtime; |
9bc879c1 | 1138 | int pack_fd; |
8d25931d | 1139 | unsigned pack_local:1, |
d131b7af SP |
1140 | pack_keep:1, |
1141 | do_not_close:1; | |
bf592c50 | 1142 | unsigned char sha1[20]; |
8f1d2e6f JH |
1143 | /* something like ".git/objects/pack/xxxxx.pack" */ |
1144 | char pack_name[FLEX_ARRAY]; /* more */ | |
9a217f2a | 1145 | } *packed_git; |
f3bf9224 JH |
1146 | |
1147 | struct pack_entry { | |
c4001d92 | 1148 | off_t offset; |
f3bf9224 JH |
1149 | unsigned char sha1[20]; |
1150 | struct packed_git *p; | |
1151 | }; | |
1152 | ||
7b64469a | 1153 | extern struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_path); |
bf592c50 | 1154 | |
543c5caa NTND |
1155 | /* A hook for count-objects to report invalid files in pack directory */ |
1156 | extern void (*report_garbage)(const char *desc, const char *path); | |
1157 | ||
9a217f2a | 1158 | extern void prepare_packed_git(void); |
fc04c412 | 1159 | extern void reprepare_packed_git(void); |
bf592c50 DB |
1160 | extern void install_packed_git(struct packed_git *pack); |
1161 | ||
a6080a0a | 1162 | extern struct packed_git *find_sha1_pack(const unsigned char *sha1, |
bf592c50 DB |
1163 | struct packed_git *packs); |
1164 | ||
276bc2ca | 1165 | extern void pack_report(void); |
d40d535b MH |
1166 | |
1167 | /* | |
1168 | * mmap the index file for the specified packfile (if it is not | |
1169 | * already mmapped). Return 0 on success. | |
1170 | */ | |
d079837e | 1171 | extern int open_pack_index(struct packed_git *); |
d40d535b MH |
1172 | |
1173 | /* | |
1174 | * munmap the index file for the specified packfile (if it is | |
1175 | * currently mmapped). | |
1176 | */ | |
fa5fc15d | 1177 | extern void close_pack_index(struct packed_git *); |
d40d535b | 1178 | |
ef49a7a0 | 1179 | extern unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned long *); |
c9ced051 | 1180 | extern void close_pack_windows(struct packed_git *); |
03e79c88 | 1181 | extern void unuse_pack(struct pack_window **); |
c74faea1 | 1182 | extern void free_pack_by_name(const char *); |
3d20c636 | 1183 | extern void clear_delta_base_cache(void); |
42873078 | 1184 | extern struct packed_git *add_packed_git(const char *, int, int); |
d40d535b MH |
1185 | |
1186 | /* | |
1187 | * Return the SHA-1 of the nth object within the specified packfile. | |
1188 | * Open the index if it is not already open. The return value points | |
1189 | * at the SHA-1 within the mmapped index. Return NULL if there is an | |
1190 | * error. | |
1191 | */ | |
1192 | extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t n); | |
1193 | ||
1194 | /* | |
1195 | * Return the offset of the nth object within the specified packfile. | |
1196 | * The index must already be opened. | |
1197 | */ | |
1198 | extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t n); | |
1199 | ||
1200 | /* | |
1201 | * If the object named sha1 is present in the specified packfile, | |
1202 | * return its offset within the packfile; otherwise, return 0. | |
1203 | */ | |
1204 | extern off_t find_pack_entry_one(const unsigned char *sha1, struct packed_git *); | |
1205 | ||
4c080182 | 1206 | extern int is_pack_valid(struct packed_git *); |
c4001d92 | 1207 | extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *); |
09ded04b | 1208 | extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep); |
54dab52a | 1209 | extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t); |
f8c8abc5 | 1210 | extern int unpack_object_header(struct packed_git *, struct pack_window **, off_t *, unsigned long *); |
9a217f2a | 1211 | |
9a490590 JH |
1212 | struct object_info { |
1213 | /* Request */ | |
5b086407 | 1214 | enum object_type *typep; |
9a490590 | 1215 | unsigned long *sizep; |
161f00e7 | 1216 | unsigned long *disk_sizep; |
5d642e75 | 1217 | unsigned char *delta_base_sha1; |
9a490590 JH |
1218 | |
1219 | /* Response */ | |
1220 | enum { | |
1221 | OI_CACHED, | |
1222 | OI_LOOSE, | |
5266d369 JH |
1223 | OI_PACKED, |
1224 | OI_DBCACHED | |
9a490590 JH |
1225 | } whence; |
1226 | union { | |
1227 | /* | |
1228 | * struct { | |
1229 | * ... Nothing to expose in this case | |
1230 | * } cached; | |
1231 | * struct { | |
1232 | * ... Nothing to expose in this case | |
1233 | * } loose; | |
1234 | */ | |
1235 | struct { | |
1236 | struct packed_git *pack; | |
1237 | off_t offset; | |
1238 | unsigned int is_delta; | |
1239 | } packed; | |
1240 | } u; | |
1241 | }; | |
de7b5d62 | 1242 | extern int sha1_object_info_extended(const unsigned char *, struct object_info *, unsigned flags); |
9a217f2a | 1243 | |
8f3f9b09 JH |
1244 | /* Dumb servers support */ |
1245 | extern int update_server_info(int); | |
1246 | ||
7a397419 MG |
1247 | /* git_config_parse_key() returns these negated: */ |
1248 | #define CONFIG_INVALID_KEY 1 | |
1249 | #define CONFIG_NO_SECTION_OR_NAME 2 | |
1250 | /* git_config_set(), git_config_set_multivar() return the above or these: */ | |
1251 | #define CONFIG_NO_LOCK -1 | |
1252 | #define CONFIG_INVALID_FILE 3 | |
1253 | #define CONFIG_NO_WRITE 4 | |
1254 | #define CONFIG_NOTHING_SET 5 | |
1255 | #define CONFIG_INVALID_PATTERN 6 | |
9409c7a5 | 1256 | #define CONFIG_GENERIC_ERROR 7 |
7a397419 | 1257 | |
c8985ce0 | 1258 | struct git_config_source { |
3caec73b | 1259 | unsigned int use_stdin:1; |
c8985ce0 KS |
1260 | const char *file; |
1261 | const char *blob; | |
1262 | }; | |
1263 | ||
ef90d6d4 JS |
1264 | typedef int (*config_fn_t)(const char *, const char *, void *); |
1265 | extern int git_default_config(const char *, const char *, void *); | |
1266 | extern int git_config_from_file(config_fn_t fn, const char *, void *); | |
1bc88819 HV |
1267 | extern int git_config_from_buf(config_fn_t fn, const char *name, |
1268 | const char *buf, size_t len, void *data); | |
2b64fc89 | 1269 | extern void git_config_push_parameter(const char *text); |
b3d83d9f | 1270 | extern int git_config_from_parameters(config_fn_t fn, void *data); |
ef90d6d4 | 1271 | extern int git_config(config_fn_t fn, void *); |
9b25a0b5 | 1272 | extern int git_config_with_options(config_fn_t fn, void *, |
c8985ce0 | 1273 | struct git_config_source *config_source, |
1bc88819 | 1274 | int respect_includes); |
dbdf5854 | 1275 | extern int git_config_early(config_fn_t fn, void *, const char *repo_config); |
0b87b6e0 | 1276 | extern int git_parse_ulong(const char *, unsigned long *); |
17712991 | 1277 | extern int git_config_int(const char *, const char *); |
00160242 | 1278 | extern int64_t git_config_int64(const char *, const char *); |
0b87b6e0 | 1279 | extern unsigned long git_config_ulong(const char *, const char *); |
a53f2ec6 | 1280 | extern int git_config_bool_or_int(const char *, const char *, int *); |
17712991 | 1281 | extern int git_config_bool(const char *, const char *); |
8420ccd8 | 1282 | extern int git_config_maybe_bool(const char *, const char *); |
ea5105a5 | 1283 | extern int git_config_string(const char **, const char *, const char *); |
395de250 | 1284 | extern int git_config_pathname(const char **, const char *, const char *); |
5ec31182 | 1285 | extern int git_config_set_in_file(const char *, const char *, const char *); |
10bea152 | 1286 | extern int git_config_set(const char *, const char *); |
b09c53a3 | 1287 | extern int git_config_parse_key(const char *, char **, int *); |
4ddba79d | 1288 | extern int git_config_set_multivar(const char *, const char *, const char *, int); |
5ec31182 | 1289 | extern int git_config_set_multivar_in_file(const char *, const char *, const char *, const char *, int); |
0667fcfb | 1290 | extern int git_config_rename_section(const char *, const char *); |
42bd39b5 | 1291 | extern int git_config_rename_section_in_file(const char *, const char *, const char *); |
506b17b1 | 1292 | extern const char *git_etc_gitconfig(void); |
ef90d6d4 | 1293 | extern int check_repository_format_version(const char *var, const char *value, void *cb); |
0ef37164 | 1294 | extern int git_env_bool(const char *, int); |
ab88c363 | 1295 | extern int git_config_system(void); |
40ea4ed9 | 1296 | extern int config_error_nonbool(const char *); |
ff0a80af | 1297 | #if defined(__GNUC__) |
87fe5df3 | 1298 | #define config_error_nonbool(s) (config_error_nonbool(s), const_error()) |
a469a101 | 1299 | #endif |
a6fa5992 PN |
1300 | extern const char *get_log_output_encoding(void); |
1301 | extern const char *get_commit_output_encoding(void); | |
1302 | ||
2496844b JK |
1303 | extern int git_config_parse_parameter(const char *, config_fn_t fn, void *data); |
1304 | ||
9b25a0b5 JK |
1305 | struct config_include_data { |
1306 | int depth; | |
1307 | config_fn_t fn; | |
1308 | void *data; | |
1309 | }; | |
1310 | #define CONFIG_INCLUDE_INIT { 0 } | |
1311 | extern int git_config_include(const char *name, const char *value, void *data); | |
17712991 | 1312 | |
1b86bbb0 JK |
1313 | /* |
1314 | * Match and parse a config key of the form: | |
1315 | * | |
1316 | * section.(subsection.)?key | |
1317 | * | |
1318 | * (i.e., what gets handed to a config_fn_t). The caller provides the section; | |
1319 | * we return -1 if it does not match, 0 otherwise. The subsection and key | |
1320 | * out-parameters are filled by the function (and subsection is NULL if it is | |
1321 | * missing). | |
1322 | */ | |
1323 | extern int parse_config_key(const char *var, | |
1324 | const char *section, | |
1325 | const char **subsection, int *subsection_len, | |
1326 | const char **key); | |
1327 | ||
d6991cee JK |
1328 | extern int committer_ident_sufficiently_given(void); |
1329 | extern int author_ident_sufficiently_given(void); | |
e1b10391 | 1330 | |
1a8f2741 | 1331 | extern const char *git_commit_encoding; |
3a55602e | 1332 | extern const char *git_log_output_encoding; |
d551a488 | 1333 | extern const char *git_mailmap_file; |
08610900 | 1334 | extern const char *git_mailmap_blob; |
4e72dcec | 1335 | |
06f59e9f TT |
1336 | /* IO helper functions */ |
1337 | extern void maybe_flush_or_die(FILE *, const char *); | |
f3123c4a | 1338 | extern int copy_fd(int ifd, int ofd); |
1468bd47 | 1339 | extern int copy_file(const char *dst, const char *src, int mode); |
f7835a25 | 1340 | extern int copy_file_with_time(const char *dst, const char *src, int mode); |
7230e6d0 | 1341 | extern void write_or_die(int fd, const void *buf, size_t count); |
6ce4e61f | 1342 | extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg); |
e0814056 | 1343 | extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg); |
4c81b03e | 1344 | extern void fsync_or_die(int fd, const char *); |
ad897215 | 1345 | |
2b7ca830 JM |
1346 | extern ssize_t read_in_full(int fd, void *buf, size_t count); |
1347 | extern ssize_t write_in_full(int fd, const void *buf, size_t count); | |
426ddeea YM |
1348 | extern ssize_t pread_in_full(int fd, void *buf, size_t count, off_t offset); |
1349 | ||
2b7ca830 JM |
1350 | static inline ssize_t write_str_in_full(int fd, const char *str) |
1351 | { | |
1352 | return write_in_full(fd, str, strlen(str)); | |
1353 | } | |
1354 | ||
f67b45f8 LT |
1355 | /* pager.c */ |
1356 | extern void setup_pager(void); | |
872da32d | 1357 | extern const char *pager_program; |
6e9af863 | 1358 | extern int pager_in_use(void); |
aa086eb8 | 1359 | extern int pager_use_color; |
ad6c3739 | 1360 | extern int term_columns(void); |
ec7ff5ba | 1361 | extern int decimal_width(int); |
4914c962 | 1362 | extern int check_pager_config(const char *cmd); |
f67b45f8 | 1363 | |
ee9601e6 | 1364 | extern const char *editor_program; |
d3e7da89 | 1365 | extern const char *askpass_program; |
dfb068be | 1366 | extern const char *excludes_file; |
4d87b9c5 | 1367 | |
051308f6 | 1368 | /* base85 */ |
f9815772 JM |
1369 | int decode_85(char *dst, const char *line, int linelen); |
1370 | void encode_85(char *buf, const unsigned char *data, int bytes); | |
051308f6 | 1371 | |
855419f7 | 1372 | /* alloc.c */ |
100c5f3b LT |
1373 | extern void *alloc_blob_node(void); |
1374 | extern void *alloc_tree_node(void); | |
1375 | extern void *alloc_commit_node(void); | |
1376 | extern void *alloc_tag_node(void); | |
1377 | extern void *alloc_object_node(void); | |
855419f7 LT |
1378 | extern void alloc_report(void); |
1379 | ||
6ce4e61f | 1380 | /* trace.c */ |
28bea9e5 | 1381 | __attribute__((format (printf, 1, 2))) |
6ce4e61f | 1382 | extern void trace_printf(const char *format, ...); |
28bea9e5 | 1383 | __attribute__((format (printf, 2, 3))) |
b319ce4c | 1384 | extern void trace_argv_printf(const char **argv, const char *format, ...); |
a9ca8a85 | 1385 | extern void trace_repo_setup(const char *prefix); |
39bc5e46 | 1386 | extern int trace_want(const char *key); |
58babfff NTND |
1387 | __attribute__((format (printf, 2, 3))) |
1388 | extern void trace_printf_key(const char *key, const char *fmt, ...); | |
94b3b374 | 1389 | extern void trace_strbuf(const char *key, const struct strbuf *buf); |
6ce4e61f | 1390 | |
bbc30f99 | 1391 | void packet_trace_identity(const char *prog); |
6ce4e61f | 1392 | |
b6ec1d61 | 1393 | /* add */ |
7ae02a30 AR |
1394 | /* |
1395 | * return 0 if success, 1 - if addition of a file failed and | |
1396 | * ADD_FILES_IGNORE_ERRORS was specified in flags | |
1397 | */ | |
3efe8e43 | 1398 | int add_files_to_cache(const char *prefix, const struct pathspec *pathspec, int flags); |
b6ec1d61 | 1399 | |
aecbf914 JH |
1400 | /* diff.c */ |
1401 | extern int diff_auto_refresh_index; | |
1402 | ||
68faf689 JH |
1403 | /* match-trees.c */ |
1404 | void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int); | |
85e51b78 | 1405 | void shift_tree_by(const unsigned char *, const unsigned char *, unsigned char *, const char *); |
68faf689 | 1406 | |
a9cc857a JH |
1407 | /* |
1408 | * whitespace rules. | |
1409 | * used by both diff and apply | |
f4b05a49 | 1410 | * last two digits are tab width |
a9cc857a | 1411 | */ |
f4b05a49 JS |
1412 | #define WS_BLANK_AT_EOL 0100 |
1413 | #define WS_SPACE_BEFORE_TAB 0200 | |
1414 | #define WS_INDENT_WITH_NON_TAB 0400 | |
1415 | #define WS_CR_AT_EOL 01000 | |
1416 | #define WS_BLANK_AT_EOF 02000 | |
1417 | #define WS_TAB_IN_INDENT 04000 | |
aeb84b05 | 1418 | #define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF) |
f4b05a49 JS |
1419 | #define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|8) |
1420 | #define WS_TAB_WIDTH_MASK 077 | |
cf1b7869 JH |
1421 | extern unsigned whitespace_rule_cfg; |
1422 | extern unsigned whitespace_rule(const char *); | |
1423 | extern unsigned parse_whitespace_rule(const char *); | |
8f8841e9 JH |
1424 | extern unsigned ws_check(const char *line, int len, unsigned ws_rule); |
1425 | extern void ws_check_emit(const char *line, int len, unsigned ws_rule, FILE *stream, const char *set, const char *reset, const char *ws); | |
c1795bb0 | 1426 | extern char *whitespace_error_string(unsigned ws); |
d511bd33 | 1427 | extern void ws_fix_copy(struct strbuf *, const char *, int, unsigned, int *); |
877f23cc | 1428 | extern int ws_blank_line(const char *line, int len, unsigned ws_rule); |
f4b05a49 | 1429 | #define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK) |
a9cc857a | 1430 | |
ee425e46 | 1431 | /* ls-files */ |
17ddc66e | 1432 | int report_path_error(const char *ps_matched, const struct pathspec *pathspec, const char *prefix); |
ee425e46 JH |
1433 | void overlay_tree_on_cache(const char *tree_name, const char *prefix); |
1434 | ||
94351118 | 1435 | char *alias_lookup(const char *alias); |
0989fe96 | 1436 | int split_cmdline(char *cmdline, const char ***argv); |
ad9ac6db GB |
1437 | /* Takes a negative value returned by split_cmdline */ |
1438 | const char *split_cmdline_strerror(int cmdline_errno); | |
94351118 | 1439 | |
e37c1329 NTND |
1440 | /* git.c */ |
1441 | struct startup_info { | |
a60645f9 | 1442 | int have_repository; |
f07d6a1a | 1443 | const char *prefix; |
e37c1329 NTND |
1444 | }; |
1445 | extern struct startup_info *startup_info; | |
1446 | ||
db699a8a NTND |
1447 | /* merge.c */ |
1448 | struct commit_list; | |
1449 | int try_merge_command(const char *strategy, size_t xopts_nr, | |
1450 | const char **xopts, struct commit_list *common, | |
1451 | const char *head_arg, struct commit_list *remotes); | |
1452 | int checkout_fast_forward(const unsigned char *from, | |
1453 | const unsigned char *to, | |
1454 | int overwrite_ignore); | |
1455 | ||
cac42b26 | 1456 | |
38f865c2 JK |
1457 | int sane_execvp(const char *file, char *const argv[]); |
1458 | ||
38612532 MH |
1459 | /* |
1460 | * A struct to encapsulate the concept of whether a file has changed | |
1461 | * since we last checked it. This uses criteria similar to those used | |
1462 | * for the index. | |
1463 | */ | |
1464 | struct stat_validity { | |
1465 | struct stat_data *sd; | |
1466 | }; | |
1467 | ||
1468 | void stat_validity_clear(struct stat_validity *sv); | |
1469 | ||
1470 | /* | |
1471 | * Returns 1 if the path is a regular file (or a symlink to a regular | |
1472 | * file) and matches the saved stat_validity, 0 otherwise. A missing | |
1473 | * or inaccessible file is considered a match if the struct was just | |
1474 | * initialized, or if the previous update found an inaccessible file. | |
1475 | */ | |
1476 | int stat_validity_check(struct stat_validity *sv, const char *path); | |
1477 | ||
1478 | /* | |
1479 | * Update the stat_validity from a file opened at descriptor fd. If | |
1480 | * the file is missing, inaccessible, or not a regular file, then | |
1481 | * future calls to stat_validity_check will match iff one of those | |
1482 | * conditions continues to be true. | |
1483 | */ | |
1484 | void stat_validity_update(struct stat_validity *sv, int fd); | |
1485 | ||
9ef176b5 NTND |
1486 | int versioncmp(const char *s1, const char *s2); |
1487 | ||
e83c5163 | 1488 | #endif /* CACHE_H */ |