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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" |
ec2dd32c | 7 | #include "list.h" |
75194438 | 8 | #include "advice.h" |
65784830 | 9 | #include "gettext.h" |
d1bf0e08 | 10 | #include "convert.h" |
5991a55c | 11 | #include "trace.h" |
155ef25f | 12 | #include "string-list.h" |
f4015337 | 13 | #include "pack-revindex.h" |
f18f816c | 14 | #include "hash.h" |
e7d72d07 | 15 | #include "path.h" |
cc817ca3 | 16 | #include "sha1-array.h" |
78a67668 | 17 | #include "repository.h" |
8e72d675 | 18 | #include "mem-pool.h" |
e83c5163 | 19 | |
9126f009 | 20 | #include <zlib.h> |
ef49a7a0 JH |
21 | typedef struct git_zstream { |
22 | z_stream z; | |
23 | unsigned long avail_in; | |
24 | unsigned long avail_out; | |
25 | unsigned long total_in; | |
26 | unsigned long total_out; | |
27 | unsigned char *next_in; | |
28 | unsigned char *next_out; | |
29 | } git_zstream; | |
30 | ||
31 | void git_inflate_init(git_zstream *); | |
32 | void git_inflate_init_gzip_only(git_zstream *); | |
33 | void git_inflate_end(git_zstream *); | |
34 | int git_inflate(git_zstream *, int flush); | |
35 | ||
36 | void git_deflate_init(git_zstream *, int level); | |
37 | void git_deflate_init_gzip(git_zstream *, int level); | |
c3c2e1a0 | 38 | void git_deflate_init_raw(git_zstream *, int level); |
ef49a7a0 | 39 | void git_deflate_end(git_zstream *); |
568508e7 | 40 | int git_deflate_abort(git_zstream *); |
ef49a7a0 JH |
41 | int git_deflate_end_gently(git_zstream *); |
42 | int git_deflate(git_zstream *, int flush); | |
43 | unsigned long git_deflate_bound(git_zstream *, unsigned long); | |
39c68542 | 44 | |
5f7817c8 | 45 | /* The length in bytes and in hex digits of an object name (SHA-1 value). */ |
46 | #define GIT_SHA1_RAWSZ 20 | |
47 | #define GIT_SHA1_HEXSZ (2 * GIT_SHA1_RAWSZ) | |
48 | ||
5028bf62 | 49 | /* The length in byte and in hex digits of the largest possible hash value. */ |
50 | #define GIT_MAX_RAWSZ GIT_SHA1_RAWSZ | |
51 | #define GIT_MAX_HEXSZ GIT_SHA1_HEXSZ | |
52 | ||
5f7817c8 | 53 | struct object_id { |
5028bf62 | 54 | unsigned char hash[GIT_MAX_RAWSZ]; |
5f7817c8 | 55 | }; |
56 | ||
78a67668 | 57 | #define the_hash_algo the_repository->hash_algo |
58 | ||
962554c6 | 59 | #if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT) |
b6829693 ET |
60 | #define DTYPE(de) ((de)->d_type) |
61 | #else | |
0bdd79af JH |
62 | #undef DT_UNKNOWN |
63 | #undef DT_DIR | |
64 | #undef DT_REG | |
65 | #undef DT_LNK | |
b6829693 ET |
66 | #define DT_UNKNOWN 0 |
67 | #define DT_DIR 1 | |
68 | #define DT_REG 2 | |
a15c1c60 | 69 | #define DT_LNK 3 |
b6829693 ET |
70 | #define DTYPE(de) DT_UNKNOWN |
71 | #endif | |
72 | ||
40689ae1 MK |
73 | /* unknown mode (impossible combination S_IFIFO|S_IFCHR) */ |
74 | #define S_IFINVALID 0030000 | |
75 | ||
9eec4795 LT |
76 | /* |
77 | * A "directory link" is a link to another git directory. | |
78 | * | |
79 | * The value 0160000 is not normally a valid mode, and | |
80 | * also just happens to be S_IFDIR + S_IFLNK | |
9eec4795 | 81 | */ |
302b9282 MW |
82 | #define S_IFGITLINK 0160000 |
83 | #define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK) | |
9eec4795 | 84 | |
72441af7 KS |
85 | /* |
86 | * Some mode bits are also used internally for computations. | |
87 | * | |
88 | * They *must* not overlap with any valid modes, and they *must* not be emitted | |
89 | * to outside world - i.e. appear on disk or network. In other words, it's just | |
90 | * temporary fields, which we internally use, but they have to stay in-house. | |
91 | * | |
92 | * ( such approach is valid, as standard S_IF* fits into 16 bits, and in Git | |
93 | * codebase mode is `unsigned int` which is assumed to be at least 32 bits ) | |
94 | */ | |
95 | ||
96 | /* used internally in tree-diff */ | |
97 | #define S_DIFFTREE_IFXMIN_NEQ 0x80000000 | |
98 | ||
99 | ||
2386d658 LT |
100 | /* |
101 | * Intensive research over the course of many years has shown that | |
102 | * port 9418 is totally unused by anything else. Or | |
103 | * | |
104 | * Your search - "port 9418" - did not match any documents. | |
105 | * | |
106 | * as www.google.com puts it. | |
ba8a4970 LT |
107 | * |
108 | * This port has been properly assigned for git use by IANA: | |
109 | * git (Assigned-9418) [I06-050728-0001]. | |
110 | * | |
111 | * git 9418/tcp git pack transfer service | |
112 | * git 9418/udp git pack transfer service | |
113 | * | |
114 | * with Linus Torvalds <torvalds@osdl.org> as the point of | |
115 | * contact. September 2005. | |
116 | * | |
117 | * See http://www.iana.org/assignments/port-numbers | |
2386d658 LT |
118 | */ |
119 | #define DEFAULT_GIT_PORT 9418 | |
120 | ||
e83c5163 LT |
121 | /* |
122 | * Basic data structures for the directory cache | |
e83c5163 LT |
123 | */ |
124 | ||
125 | #define CACHE_SIGNATURE 0x44495243 /* "DIRC" */ | |
126 | struct cache_header { | |
7800c1eb TG |
127 | uint32_t hdr_signature; |
128 | uint32_t hdr_version; | |
129 | uint32_t hdr_entries; | |
e83c5163 LT |
130 | }; |
131 | ||
9d227781 JH |
132 | #define INDEX_FORMAT_LB 2 |
133 | #define INDEX_FORMAT_UB 4 | |
134 | ||
e83c5163 LT |
135 | /* |
136 | * The "cache_time" is just the low 32 bits of the | |
137 | * time. It doesn't matter if it overflows - we only | |
138 | * check it for equality in the 32 bits we save. | |
139 | */ | |
140 | struct cache_time { | |
7800c1eb TG |
141 | uint32_t sec; |
142 | uint32_t nsec; | |
e83c5163 LT |
143 | }; |
144 | ||
c21d39d7 MH |
145 | struct stat_data { |
146 | struct cache_time sd_ctime; | |
147 | struct cache_time sd_mtime; | |
148 | unsigned int sd_dev; | |
149 | unsigned int sd_ino; | |
150 | unsigned int sd_uid; | |
151 | unsigned int sd_gid; | |
152 | unsigned int sd_size; | |
153 | }; | |
154 | ||
e83c5163 | 155 | struct cache_entry { |
8b013788 | 156 | struct hashmap_entry ent; |
c21d39d7 | 157 | struct stat_data ce_stat_data; |
ccc4feb5 | 158 | unsigned int ce_mode; |
7a51ed66 | 159 | unsigned int ce_flags; |
8e72d675 | 160 | unsigned int mem_pool_allocated; |
b60e188c | 161 | unsigned int ce_namelen; |
5fc2fc8f | 162 | unsigned int index; /* for link extension */ |
99d1a986 | 163 | struct object_id oid; |
8f1d2e6f | 164 | char name[FLEX_ARRAY]; /* more */ |
e83c5163 LT |
165 | }; |
166 | ||
95fd5bf8 | 167 | #define CE_STAGEMASK (0x3000) |
16ce2e4c | 168 | #define CE_EXTENDED (0x4000) |
5f73076c | 169 | #define CE_VALID (0x8000) |
aee46198 | 170 | #define CE_STAGESHIFT 12 |
95fd5bf8 | 171 | |
06aaaa0b | 172 | /* |
ce51bf09 | 173 | * Range 0xFFFF0FFF in ce_flags is divided into |
06aaaa0b NTND |
174 | * two parts: in-memory flags and on-disk ones. |
175 | * Flags in CE_EXTENDED_FLAGS will get saved on-disk | |
176 | * if you want to save a new flag, add it in | |
177 | * CE_EXTENDED_FLAGS | |
178 | * | |
179 | * In-memory only flags | |
180 | */ | |
2977ffbb NTND |
181 | #define CE_UPDATE (1 << 16) |
182 | #define CE_REMOVE (1 << 17) | |
183 | #define CE_UPTODATE (1 << 18) | |
184 | #define CE_ADDED (1 << 19) | |
a22c6371 | 185 | |
2977ffbb | 186 | #define CE_HASHED (1 << 20) |
883e248b | 187 | #define CE_FSMONITOR_VALID (1 << 21) |
2977ffbb NTND |
188 | #define CE_WT_REMOVE (1 << 22) /* remove in work directory */ |
189 | #define CE_CONFLICTED (1 << 23) | |
7a51ed66 | 190 | |
2977ffbb | 191 | #define CE_UNPACKED (1 << 24) |
2431afbf | 192 | #define CE_NEW_SKIP_WORKTREE (1 << 25) |
da165f47 | 193 | |
e721c154 NTND |
194 | /* used to temporarily mark paths matched by pathspecs */ |
195 | #define CE_MATCHED (1 << 26) | |
196 | ||
078a58e8 | 197 | #define CE_UPDATE_IN_BASE (1 << 27) |
b3c96fb1 | 198 | #define CE_STRIP_NAME (1 << 28) |
078a58e8 | 199 | |
06aaaa0b NTND |
200 | /* |
201 | * Extended on-disk flags | |
202 | */ | |
2977ffbb NTND |
203 | #define CE_INTENT_TO_ADD (1 << 29) |
204 | #define CE_SKIP_WORKTREE (1 << 30) | |
06aaaa0b | 205 | /* CE_EXTENDED2 is for future extension */ |
9a93c668 | 206 | #define CE_EXTENDED2 (1U << 31) |
06aaaa0b | 207 | |
44a36913 | 208 | #define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD | CE_SKIP_WORKTREE) |
06aaaa0b NTND |
209 | |
210 | /* | |
211 | * Safeguard to avoid saving wrong flags: | |
212 | * - CE_EXTENDED2 won't get saved until its semantic is known | |
213 | * - Bits in 0x0000FFFF have been saved in ce_flags already | |
214 | * - Bits in 0x003F0000 are currently in-memory flags | |
215 | */ | |
216 | #if CE_EXTENDED_FLAGS & 0x803FFFFF | |
217 | #error "CE_EXTENDED_FLAGS out of range" | |
218 | #endif | |
219 | ||
3e3a4a41 | 220 | /* Forward structure decls */ |
64acde94 | 221 | struct pathspec; |
3e3a4a41 | 222 | struct child_process; |
e1f8694f | 223 | struct tree; |
64acde94 | 224 | |
eb7a2f1d LT |
225 | /* |
226 | * Copy the sha1 and stat state of a cache entry from one to | |
227 | * another. But we never change the name, or the hash state! | |
228 | */ | |
20d142b4 RS |
229 | static inline void copy_cache_entry(struct cache_entry *dst, |
230 | const struct cache_entry *src) | |
eb7a2f1d | 231 | { |
419a597f | 232 | unsigned int state = dst->ce_flags & CE_HASHED; |
8e72d675 | 233 | int mem_pool_allocated = dst->mem_pool_allocated; |
eb7a2f1d LT |
234 | |
235 | /* Don't copy hash chain and name */ | |
8b013788 KB |
236 | memcpy(&dst->ce_stat_data, &src->ce_stat_data, |
237 | offsetof(struct cache_entry, name) - | |
238 | offsetof(struct cache_entry, ce_stat_data)); | |
eb7a2f1d LT |
239 | |
240 | /* Restore the hash state */ | |
419a597f | 241 | dst->ce_flags = (dst->ce_flags & ~CE_HASHED) | state; |
8e72d675 JM |
242 | |
243 | /* Restore the mem_pool_allocated flag */ | |
244 | dst->mem_pool_allocated = mem_pool_allocated; | |
eb7a2f1d LT |
245 | } |
246 | ||
b60e188c | 247 | static inline unsigned create_ce_flags(unsigned stage) |
7fec10b7 | 248 | { |
b60e188c | 249 | return (stage << CE_STAGESHIFT); |
7fec10b7 JH |
250 | } |
251 | ||
b60e188c | 252 | #define ce_namelen(ce) ((ce)->ce_namelen) |
aee46198 | 253 | #define ce_size(ce) cache_entry_size(ce_namelen(ce)) |
7a51ed66 | 254 | #define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT) |
eadb5831 | 255 | #define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE) |
44a36913 | 256 | #define ce_skip_worktree(ce) ((ce)->ce_flags & CE_SKIP_WORKTREE) |
eadb5831 | 257 | #define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE) |
895ff3b2 | 258 | #define ce_intent_to_add(ce) ((ce)->ce_flags & CE_INTENT_TO_ADD) |
aee46198 | 259 | |
e4479470 | 260 | #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644) |
8ae0a8c5 KS |
261 | static inline unsigned int create_ce_mode(unsigned int mode) |
262 | { | |
8ae0a8c5 | 263 | if (S_ISLNK(mode)) |
7a51ed66 | 264 | return S_IFLNK; |
302b9282 | 265 | if (S_ISDIR(mode) || S_ISGITLINK(mode)) |
7a51ed66 LT |
266 | return S_IFGITLINK; |
267 | return S_IFREG | ce_permissions(mode); | |
8ae0a8c5 | 268 | } |
20d142b4 RS |
269 | static inline unsigned int ce_mode_from_stat(const struct cache_entry *ce, |
270 | unsigned int mode) | |
185c975f | 271 | { |
78a8d641 JS |
272 | extern int trust_executable_bit, has_symlinks; |
273 | if (!has_symlinks && S_ISREG(mode) && | |
7a51ed66 | 274 | ce && S_ISLNK(ce->ce_mode)) |
78a8d641 | 275 | return ce->ce_mode; |
185c975f | 276 | if (!trust_executable_bit && S_ISREG(mode)) { |
7a51ed66 | 277 | if (ce && S_ISREG(ce->ce_mode)) |
185c975f JH |
278 | return ce->ce_mode; |
279 | return create_ce_mode(0666); | |
280 | } | |
281 | return create_ce_mode(mode); | |
282 | } | |
d6b8fc30 JH |
283 | static inline int ce_to_dtype(const struct cache_entry *ce) |
284 | { | |
285 | unsigned ce_mode = ntohl(ce->ce_mode); | |
286 | if (S_ISREG(ce_mode)) | |
287 | return DT_REG; | |
288 | else if (S_ISDIR(ce_mode) || S_ISGITLINK(ce_mode)) | |
289 | return DT_DIR; | |
290 | else if (S_ISLNK(ce_mode)) | |
291 | return DT_LNK; | |
292 | else | |
293 | return DT_UNKNOWN; | |
294 | } | |
b90d9b88 RS |
295 | static inline unsigned int canon_mode(unsigned int mode) |
296 | { | |
297 | if (S_ISREG(mode)) | |
298 | return S_IFREG | ce_permissions(mode); | |
299 | if (S_ISLNK(mode)) | |
300 | return S_IFLNK; | |
301 | if (S_ISDIR(mode)) | |
302 | return S_IFDIR; | |
303 | return S_IFGITLINK; | |
304 | } | |
e4479470 | 305 | |
ee7825b5 | 306 | #define cache_entry_size(len) (offsetof(struct cache_entry,name) + (len) + 1) |
f5cabd13 | 307 | |
e636a7b4 NTND |
308 | #define SOMETHING_CHANGED (1 << 0) /* unclassified changes go here */ |
309 | #define CE_ENTRY_CHANGED (1 << 1) | |
310 | #define CE_ENTRY_REMOVED (1 << 2) | |
311 | #define CE_ENTRY_ADDED (1 << 3) | |
6c306a34 | 312 | #define RESOLVE_UNDO_CHANGED (1 << 4) |
a5400efe | 313 | #define CACHE_TREE_CHANGED (1 << 5) |
c18b80a0 | 314 | #define SPLIT_INDEX_ORDERED (1 << 6) |
1bbb3dba | 315 | #define UNTRACKED_CHANGED (1 << 7) |
883e248b | 316 | #define FSMONITOR_CHANGED (1 << 8) |
e636a7b4 | 317 | |
5fc2fc8f | 318 | struct split_index; |
83c094ad NTND |
319 | struct untracked_cache; |
320 | ||
228e94f9 JH |
321 | struct index_state { |
322 | struct cache_entry **cache; | |
9d227781 | 323 | unsigned int version; |
228e94f9 | 324 | unsigned int cache_nr, cache_alloc, cache_changed; |
cfc5789a | 325 | struct string_list *resolve_undo; |
228e94f9 | 326 | struct cache_tree *cache_tree; |
5fc2fc8f | 327 | struct split_index *split_index; |
fba2f38a | 328 | struct cache_time timestamp; |
913e0e99 | 329 | unsigned name_hash_initialized : 1, |
4bddd983 TG |
330 | initialized : 1, |
331 | drop_cache_tree : 1; | |
8b013788 | 332 | struct hashmap name_hash; |
e05881a4 | 333 | struct hashmap dir_hash; |
75691ea3 | 334 | struct object_id oid; |
83c094ad | 335 | struct untracked_cache *untracked; |
883e248b | 336 | uint64_t fsmonitor_last_update; |
ba1b9cac | 337 | struct ewah_bitmap *fsmonitor_dirty; |
8e72d675 | 338 | struct mem_pool *ce_mem_pool; |
228e94f9 JH |
339 | }; |
340 | ||
341 | extern struct index_state the_index; | |
342 | ||
96872bc2 | 343 | /* Name hashing */ |
ea194895 | 344 | extern int test_lazy_init_name_hash(struct index_state *istate, int try_threaded); |
96872bc2 | 345 | extern void add_name_hash(struct index_state *istate, struct cache_entry *ce); |
2092678c KB |
346 | extern void remove_name_hash(struct index_state *istate, struct cache_entry *ce); |
347 | extern void free_name_hash(struct index_state *istate); | |
96872bc2 LT |
348 | |
349 | ||
a849735b JM |
350 | /* Cache entry creation and cleanup */ |
351 | ||
352 | /* | |
353 | * Create cache_entry intended for use in the specified index. Caller | |
354 | * is responsible for discarding the cache_entry with | |
355 | * `discard_cache_entry`. | |
356 | */ | |
357 | struct cache_entry *make_cache_entry(struct index_state *istate, | |
358 | unsigned int mode, | |
359 | const struct object_id *oid, | |
360 | const char *path, | |
361 | int stage, | |
362 | unsigned int refresh_options); | |
363 | ||
364 | struct cache_entry *make_empty_cache_entry(struct index_state *istate, | |
365 | size_t name_len); | |
366 | ||
367 | /* | |
368 | * Create a cache_entry that is not intended to be added to an index. | |
369 | * Caller is responsible for discarding the cache_entry | |
370 | * with `discard_cache_entry`. | |
371 | */ | |
372 | struct cache_entry *make_transient_cache_entry(unsigned int mode, | |
373 | const struct object_id *oid, | |
374 | const char *path, | |
375 | int stage); | |
376 | ||
377 | struct cache_entry *make_empty_transient_cache_entry(size_t name_len); | |
378 | ||
379 | /* | |
380 | * Discard cache entry. | |
381 | */ | |
382 | void discard_cache_entry(struct cache_entry *ce); | |
383 | ||
8616a2d0 JM |
384 | /* |
385 | * Check configuration if we should perform extra validation on cache | |
386 | * entries. | |
387 | */ | |
388 | int should_validate_cache_entries(void); | |
389 | ||
8e72d675 JM |
390 | /* |
391 | * Duplicate a cache_entry. Allocate memory for the new entry from a | |
392 | * memory_pool. Takes into account cache_entry fields that are meant | |
393 | * for managing the underlying memory allocation of the cache_entry. | |
394 | */ | |
395 | struct cache_entry *dup_cache_entry(const struct cache_entry *ce, struct index_state *istate); | |
396 | ||
397 | /* | |
398 | * Validate the cache entries in the index. This is an internal | |
399 | * consistency check that the cache_entry structs are allocated from | |
400 | * the expected memory pool. | |
401 | */ | |
402 | void validate_cache_entries(const struct index_state *istate); | |
403 | ||
4aab5b46 | 404 | #ifndef NO_THE_INDEX_COMPATIBILITY_MACROS |
228e94f9 JH |
405 | #define active_cache (the_index.cache) |
406 | #define active_nr (the_index.cache_nr) | |
407 | #define active_alloc (the_index.cache_alloc) | |
408 | #define active_cache_changed (the_index.cache_changed) | |
409 | #define active_cache_tree (the_index.cache_tree) | |
e83c5163 | 410 | |
4aab5b46 | 411 | #define read_cache() read_index(&the_index) |
a125a223 | 412 | #define read_cache_from(path) read_index_from(&the_index, (path), (get_git_dir())) |
ae9af122 | 413 | #define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec), 0) |
fa7b3c2f | 414 | #define is_cache_unborn() is_index_unborn(&the_index) |
e46bbcf6 | 415 | #define read_cache_unmerged() read_index_unmerged(&the_index) |
4aab5b46 | 416 | #define discard_cache() discard_index(&the_index) |
94a5728c | 417 | #define unmerged_cache() unmerged_index(&the_index) |
4aab5b46 JH |
418 | #define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen)) |
419 | #define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option)) | |
81dc2307 | 420 | #define rename_cache_entry_at(pos, new_name) rename_index_entry_at(&the_index, (pos), (new_name)) |
4aab5b46 JH |
421 | #define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos)) |
422 | #define remove_file_from_cache(path) remove_file_from_index(&the_index, (path)) | |
610d55af TG |
423 | #define add_to_cache(path, st, flags) add_to_index(&the_index, (path), (st), (flags)) |
424 | #define add_file_to_cache(path, flags) add_file_to_index(&the_index, (path), (flags)) | |
d9d70966 | 425 | #define chmod_cache_entry(ce, flip) chmod_index_entry(&the_index, (ce), (flip)) |
3deffc52 | 426 | #define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL) |
4bd5b7da JH |
427 | #define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options)) |
428 | #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options)) | |
db5360f3 ES |
429 | #define cache_dir_exists(name, namelen) index_dir_exists(&the_index, (name), (namelen)) |
430 | #define cache_file_exists(name, namelen, igncase) index_file_exists(&the_index, (name), (namelen), (igncase)) | |
98fa4738 | 431 | #define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen)) |
cfc5789a | 432 | #define resolve_undo_clear() resolve_undo_clear_index(&the_index) |
8aa38563 | 433 | #define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at) |
4421a823 | 434 | #define unmerge_cache(pathspec) unmerge_index(&the_index, pathspec) |
ff366825 | 435 | #define read_blob_data_from_cache(path, sz) read_blob_data_from_index(&the_index, (path), (sz)) |
4aab5b46 | 436 | #endif |
e83c5163 | 437 | |
fd9b1bae NTND |
438 | #define TYPE_BITS 3 |
439 | ||
011b6486 NTND |
440 | /* |
441 | * Values in this enum (except those outside the 3 bit range) are part | |
442 | * of pack file format. See Documentation/technical/pack-format.txt | |
443 | * for more information. | |
444 | */ | |
edaec3fb JH |
445 | enum object_type { |
446 | OBJ_BAD = -1, | |
447 | OBJ_NONE = 0, | |
448 | OBJ_COMMIT = 1, | |
449 | OBJ_TREE = 2, | |
450 | OBJ_BLOB = 3, | |
451 | OBJ_TAG = 4, | |
452 | /* 5 for future expansion */ | |
453 | OBJ_OFS_DELTA = 6, | |
454 | OBJ_REF_DELTA = 7, | |
355885d5 | 455 | OBJ_ANY, |
4b05548f | 456 | OBJ_MAX |
edaec3fb JH |
457 | }; |
458 | ||
b45563a2 JH |
459 | static inline enum object_type object_type(unsigned int mode) |
460 | { | |
461 | return S_ISDIR(mode) ? OBJ_TREE : | |
462 | S_ISGITLINK(mode) ? OBJ_COMMIT : | |
463 | OBJ_BLOB; | |
464 | } | |
465 | ||
2163e5db | 466 | /* Double-check local_repo_env below if you add to this list. */ |
8ac069ac | 467 | #define GIT_DIR_ENVIRONMENT "GIT_DIR" |
c7b3a3d2 | 468 | #define GIT_COMMON_DIR_ENVIRONMENT "GIT_COMMON_DIR" |
a1bea2c1 | 469 | #define GIT_NAMESPACE_ENVIRONMENT "GIT_NAMESPACE" |
892c41b9 | 470 | #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE" |
a6f7f9a3 | 471 | #define GIT_PREFIX_ENVIRONMENT "GIT_PREFIX" |
74866d75 | 472 | #define GIT_SUPER_PREFIX_ENVIRONMENT "GIT_INTERNAL_SUPER_PREFIX" |
8ac069ac | 473 | #define DEFAULT_GIT_DIR_ENVIRONMENT ".git" |
d19938ab | 474 | #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY" |
bb233d69 | 475 | #define INDEX_ENVIRONMENT "GIT_INDEX_FILE" |
5da5c8f4 | 476 | #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE" |
069c0532 | 477 | #define GIT_SHALLOW_FILE_ENVIRONMENT "GIT_SHALLOW_FILE" |
d4ebc36c JH |
478 | #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR" |
479 | #define CONFIG_ENVIRONMENT "GIT_CONFIG" | |
2b64fc89 | 480 | #define CONFIG_DATA_ENVIRONMENT "GIT_CONFIG_PARAMETERS" |
d4ebc36c | 481 | #define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH" |
0454dd93 | 482 | #define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES" |
6476b38b | 483 | #define NO_REPLACE_OBJECTS_ENVIRONMENT "GIT_NO_REPLACE_OBJECTS" |
58d121b2 | 484 | #define GIT_REPLACE_REF_BASE_ENVIRONMENT "GIT_REPLACE_REF_BASE" |
d0bfd026 JH |
485 | #define GITATTRIBUTES_FILE ".gitattributes" |
486 | #define INFOATTRIBUTES_FILE "info/attributes" | |
f48fd688 | 487 | #define ATTRIBUTE_MACRO_PREFIX "[attr]" |
4c0eeafe | 488 | #define GITMODULES_FILE ".gitmodules" |
b5c259f2 AO |
489 | #define GITMODULES_INDEX ":.gitmodules" |
490 | #define GITMODULES_HEAD "HEAD:.gitmodules" | |
a97a7468 JS |
491 | #define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF" |
492 | #define GIT_NOTES_DEFAULT_REF "refs/notes/commits" | |
894a9d33 | 493 | #define GIT_NOTES_DISPLAY_REF_ENVIRONMENT "GIT_NOTES_DISPLAY_REF" |
6956f858 TR |
494 | #define GIT_NOTES_REWRITE_REF_ENVIRONMENT "GIT_NOTES_REWRITE_REF" |
495 | #define GIT_NOTES_REWRITE_MODE_ENVIRONMENT "GIT_NOTES_REWRITE_MODE" | |
823ab40f | 496 | #define GIT_LITERAL_PATHSPECS_ENVIRONMENT "GIT_LITERAL_PATHSPECS" |
bd30c2e4 NTND |
497 | #define GIT_GLOB_PATHSPECS_ENVIRONMENT "GIT_GLOB_PATHSPECS" |
498 | #define GIT_NOGLOB_PATHSPECS_ENVIRONMENT "GIT_NOGLOB_PATHSPECS" | |
93d93537 | 499 | #define GIT_ICASE_PATHSPECS_ENVIRONMENT "GIT_ICASE_PATHSPECS" |
e34c2e01 | 500 | #define GIT_QUARANTINE_ENVIRONMENT "GIT_QUARANTINE_PATH" |
27344d6a | 501 | #define GIT_OPTIONAL_LOCKS_ENVIRONMENT "GIT_OPTIONAL_LOCKS" |
226c0ddd | 502 | #define GIT_TEXT_DOMAIN_DIR_ENVIRONMENT "GIT_TEXTDOMAINDIR" |
bb233d69 | 503 | |
373d70ef BW |
504 | /* |
505 | * Environment variable used in handshaking the wire protocol. | |
506 | * Contains a colon ':' separated list of keys with optional values | |
507 | * 'key[=value]'. Presence of unknown keys and values must be | |
508 | * ignored. | |
509 | */ | |
510 | #define GIT_PROTOCOL_ENVIRONMENT "GIT_PROTOCOL" | |
19113a26 BW |
511 | /* HTTP header used to handshake the wire protocol */ |
512 | #define GIT_PROTOCOL_HEADER "Git-Protocol" | |
373d70ef | 513 | |
48a7c1c4 | 514 | /* |
2cd83d10 JK |
515 | * This environment variable is expected to contain a boolean indicating |
516 | * whether we should or should not treat: | |
517 | * | |
518 | * GIT_DIR=foo.git git ... | |
519 | * | |
520 | * as if GIT_WORK_TREE=. was given. It's not expected that users will make use | |
521 | * of this, but we use it internally to communicate to sub-processes that we | |
522 | * are in a bare repo. If not set, defaults to true. | |
523 | */ | |
524 | #define GIT_IMPLICIT_WORK_TREE_ENVIRONMENT "GIT_IMPLICIT_WORK_TREE" | |
525 | ||
48a7c1c4 | 526 | /* |
2163e5db JK |
527 | * Repository-local GIT_* environment variables; these will be cleared |
528 | * when git spawns a sub-process that runs inside another repository. | |
529 | * The array is NULL-terminated, which makes it easy to pass in the "env" | |
530 | * parameter of a run-command invocation, or to do a simple walk. | |
48a7c1c4 | 531 | */ |
2163e5db | 532 | extern const char * const local_repo_env[]; |
48a7c1c4 | 533 | |
357a03eb | 534 | extern void setup_git_env(const char *git_dir); |
73f192c9 | 535 | |
b9605bc4 JK |
536 | /* |
537 | * Returns true iff we have a configured git repository (either via | |
538 | * setup_git_directory, or in the environment via $GIT_DIR). | |
539 | */ | |
540 | int have_git_dir(void); | |
541 | ||
7d1864ce JH |
542 | extern int is_bare_repository_cfg; |
543 | extern int is_bare_repository(void); | |
68025633 | 544 | extern int is_inside_git_dir(void); |
e90fdc39 | 545 | extern char *git_work_tree_cfg; |
892c41b9 | 546 | extern int is_inside_work_tree(void); |
c5fba16c | 547 | extern const char *get_git_dir(void); |
c7b3a3d2 | 548 | extern const char *get_git_common_dir(void); |
8ac069ac JH |
549 | extern char *get_object_directory(void); |
550 | extern char *get_index_file(void); | |
0437a2e3 | 551 | extern char *get_graft_file(struct repository *r); |
48988c4d | 552 | extern void set_git_dir(const char *path); |
11f9dd71 | 553 | extern int get_common_dir_noenv(struct strbuf *sb, const char *gitdir); |
31e26ebc | 554 | extern int get_common_dir(struct strbuf *sb, const char *gitdir); |
a1bea2c1 JT |
555 | extern const char *get_git_namespace(void); |
556 | extern const char *strip_namespace(const char *namespaced_ref); | |
74866d75 | 557 | extern const char *get_super_prefix(void); |
e90fdc39 | 558 | extern const char *get_git_work_tree(void); |
a93bedad | 559 | |
ffd036b1 JK |
560 | /* |
561 | * Return true if the given path is a git directory; note that this _just_ | |
562 | * looks at the directory itself. If you want to know whether "foo/.git" | |
563 | * is a repository, you must feed that path, not just "foo". | |
564 | */ | |
565 | extern int is_git_directory(const char *path); | |
566 | ||
567 | /* | |
568 | * Return 1 if the given path is the root of a git repository or | |
569 | * submodule, else 0. Will not return 1 for bare repositories with the | |
570 | * exception of creating a bare repository in "foo/.git" and calling | |
571 | * is_git_repository("foo"). | |
572 | * | |
573 | * If we run into read errors, we err on the side of saying "yes, it is", | |
574 | * as we usually consider sub-repos precious, and would prefer to err on the | |
575 | * side of not disrupting or deleting them. | |
576 | */ | |
577 | extern int is_nonbare_repository_dir(struct strbuf *path); | |
578 | ||
a93bedad EE |
579 | #define READ_GITFILE_ERR_STAT_FAILED 1 |
580 | #define READ_GITFILE_ERR_NOT_A_FILE 2 | |
581 | #define READ_GITFILE_ERR_OPEN_FAILED 3 | |
582 | #define READ_GITFILE_ERR_READ_FAILED 4 | |
583 | #define READ_GITFILE_ERR_INVALID_FORMAT 5 | |
584 | #define READ_GITFILE_ERR_NO_PATH 6 | |
585 | #define READ_GITFILE_ERR_NOT_A_REPO 7 | |
921bdd96 | 586 | #define READ_GITFILE_ERR_TOO_LARGE 8 |
5f29433f | 587 | extern void read_gitfile_error_die(int error_code, const char *path, const char *dir); |
a93bedad EE |
588 | extern const char *read_gitfile_gently(const char *path, int *return_error_code); |
589 | #define read_gitfile(path) read_gitfile_gently((path), NULL) | |
40d96325 SB |
590 | extern const char *resolve_gitdir_gently(const char *suspect, int *return_error_code); |
591 | #define resolve_gitdir(path) resolve_gitdir_gently((path), NULL) | |
592 | ||
19757d80 | 593 | extern void set_git_work_tree(const char *tree); |
8ac069ac JH |
594 | |
595 | #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES" | |
bb233d69 | 596 | |
59f0f2f3 | 597 | extern void setup_work_tree(void); |
16ac8b8d | 598 | /* |
d3fb71b3 BW |
599 | * Find the commondir and gitdir of the repository that contains the current |
600 | * working directory, without changing the working directory or other global | |
601 | * state. The result is appended to commondir and gitdir. If the discovered | |
602 | * gitdir does not correspond to a worktree, then 'commondir' and 'gitdir' will | |
603 | * both have the same result appended to the buffer. The return value is | |
604 | * either 0 upon success and non-zero if no repository was found. | |
16ac8b8d | 605 | */ |
d3fb71b3 BW |
606 | extern int discover_git_directory(struct strbuf *commondir, |
607 | struct strbuf *gitdir); | |
4ca06608 | 608 | extern const char *setup_git_directory_gently(int *); |
d288a700 | 609 | extern const char *setup_git_directory(void); |
edc54fb5 | 610 | extern char *prefix_path(const char *prefix, int len, const char *path); |
645a29c4 | 611 | extern char *prefix_path_gently(const char *prefix, int len, int *remaining, const char *path); |
59801976 JK |
612 | |
613 | /* | |
614 | * Concatenate "prefix" (if len is non-zero) and "path", with no | |
615 | * connecting characters (so "prefix" should end with a "/"). | |
616 | * Unlike prefix_path, this should be used if the named file does | |
617 | * not have to interact with index entry; i.e. name of a random file | |
618 | * on the filesystem. | |
619 | * | |
e4da43b1 JK |
620 | * The return value is always a newly allocated string (even if the |
621 | * prefix was empty). | |
59801976 | 622 | */ |
e4da43b1 | 623 | extern char *prefix_filename(const char *prefix, const char *path); |
59801976 | 624 | |
c6e8c800 | 625 | extern int check_filename(const char *prefix, const char *name); |
023e37c3 MM |
626 | extern void verify_filename(const char *prefix, |
627 | const char *name, | |
628 | int diagnose_misspelt_rev); | |
ea92f41f | 629 | extern void verify_non_filename(const char *prefix, const char *name); |
546e0fd9 | 630 | extern int path_inside_repo(const char *prefix, const char *path); |
d288a700 | 631 | |
f225aeb2 | 632 | #define INIT_DB_QUIET 0x0001 |
33158701 | 633 | #define INIT_DB_EXIST_OK 0x0002 |
f225aeb2 | 634 | |
33158701 NTND |
635 | extern int init_db(const char *git_dir, const char *real_git_dir, |
636 | const char *template_dir, unsigned int flags); | |
f225aeb2 | 637 | |
1d999ddd | 638 | extern void sanitize_stdfds(void); |
de0957ce | 639 | extern int daemonize(void); |
1d999ddd | 640 | |
e83c5163 LT |
641 | #define alloc_nr(x) (((x)+16)*3/2) |
642 | ||
6815e569 JK |
643 | /* |
644 | * Realloc the buffer pointed at by variable 'x' so that it can hold | |
645 | * at least 'nr' entries; the number of entries currently allocated | |
646 | * is 'alloc', using the standard growing factor alloc_nr() macro. | |
647 | * | |
01f6fd4b | 648 | * DO NOT USE any expression with side-effect for 'x', 'nr', or 'alloc'. |
6815e569 JK |
649 | */ |
650 | #define ALLOC_GROW(x, nr, alloc) \ | |
651 | do { \ | |
c927e6c6 | 652 | if ((nr) > alloc) { \ |
4234a761 JH |
653 | if (alloc_nr(alloc) < (nr)) \ |
654 | alloc = (nr); \ | |
655 | else \ | |
656 | alloc = alloc_nr(alloc); \ | |
2756ca43 | 657 | REALLOC_ARRAY(x, alloc); \ |
6815e569 | 658 | } \ |
98746061 | 659 | } while (0) |
6815e569 | 660 | |
734aab75 | 661 | /* Initialize and use the cache information */ |
03b86647 | 662 | struct lock_file; |
4aab5b46 | 663 | extern int read_index(struct index_state *); |
99ce720c BP |
664 | extern void preload_index(struct index_state *index, |
665 | const struct pathspec *pathspec, | |
666 | unsigned int refresh_flags); | |
ae9af122 NTND |
667 | extern int read_index_preload(struct index_state *, |
668 | const struct pathspec *pathspec, | |
669 | unsigned int refresh_flags); | |
3e52f70b NTND |
670 | extern int do_read_index(struct index_state *istate, const char *path, |
671 | int must_exist); /* for testting only! */ | |
a125a223 TG |
672 | extern int read_index_from(struct index_state *, const char *path, |
673 | const char *gitdir); | |
fa7b3c2f | 674 | extern int is_index_unborn(struct index_state *); |
e46bbcf6 | 675 | extern int read_index_unmerged(struct index_state *); |
8dc38346 MÅ |
676 | |
677 | /* For use with `write_locked_index()`. */ | |
03b86647 | 678 | #define COMMIT_LOCK (1 << 0) |
61000814 | 679 | #define SKIP_IF_UNCHANGED (1 << 1) |
8dc38346 MÅ |
680 | |
681 | /* | |
812d6b00 MÅ |
682 | * Write the index while holding an already-taken lock. Close the lock, |
683 | * and if `COMMIT_LOCK` is given, commit it. | |
8dc38346 MÅ |
684 | * |
685 | * Unless a split index is in use, write the index into the lockfile. | |
686 | * | |
687 | * With a split index, write the shared index to a temporary file, | |
688 | * adjust its permissions and rename it into place, then write the | |
689 | * split index to the lockfile. If the temporary file for the shared | |
690 | * index cannot be created, fall back to the behavior described in | |
691 | * the previous paragraph. | |
df60cf57 MÅ |
692 | * |
693 | * With `COMMIT_LOCK`, the lock is always committed or rolled back. | |
694 | * Without it, the lock is closed, but neither committed nor rolled | |
695 | * back. | |
61000814 MÅ |
696 | * |
697 | * If `SKIP_IF_UNCHANGED` is given and the index is unchanged, nothing | |
698 | * is written (and the lock is rolled back if `COMMIT_LOCK` is given). | |
8dc38346 | 699 | */ |
03b86647 | 700 | extern int write_locked_index(struct index_state *, struct lock_file *lock, unsigned flags); |
8dc38346 | 701 | |
4aab5b46 | 702 | extern int discard_index(struct index_state *); |
edf3b905 | 703 | extern void move_index_extensions(struct index_state *dst, struct index_state *src); |
d1f128b0 | 704 | extern int unmerged_index(const struct index_state *); |
b101793c EN |
705 | |
706 | /** | |
e1f8694f EN |
707 | * Returns 1 if istate differs from tree, 0 otherwise. If tree is NULL, |
708 | * compares istate to HEAD. If tree is NULL and on an unborn branch, | |
709 | * returns 1 if there are entries in istate, 0 otherwise. If an strbuf is | |
710 | * provided, the space-separated list of files that differ will be appended | |
711 | * to it. | |
b101793c | 712 | */ |
92a1bf5a | 713 | extern int index_has_changes(struct index_state *istate, |
e1f8694f | 714 | struct tree *tree, |
1b9fbefb | 715 | struct strbuf *sb); |
b101793c | 716 | |
10ecfa76 | 717 | extern int verify_path(const char *path, unsigned mode); |
a6db3fbb | 718 | extern int strcmp_offset(const char *s1, const char *s2, size_t *first_change); |
41284eb0 DT |
719 | extern int index_dir_exists(struct index_state *istate, const char *name, int namelen); |
720 | extern void adjust_dirname_case(struct index_state *istate, char *name); | |
db5360f3 | 721 | extern struct cache_entry *index_file_exists(struct index_state *istate, const char *name, int namelen, int igncase); |
12733e9d SB |
722 | |
723 | /* | |
724 | * Searches for an entry defined by name and namelen in the given index. | |
725 | * If the return value is positive (including 0) it is the position of an | |
726 | * exact match. If the return value is negative, the negated value minus 1 | |
727 | * is the position where the entry would be inserted. | |
728 | * Example: The current index consists of these files and its stages: | |
729 | * | |
730 | * b#0, d#0, f#1, f#3 | |
731 | * | |
732 | * index_name_pos(&index, "a", 1) -> -1 | |
733 | * index_name_pos(&index, "b", 1) -> 0 | |
734 | * index_name_pos(&index, "c", 1) -> -2 | |
735 | * index_name_pos(&index, "d", 1) -> 1 | |
736 | * index_name_pos(&index, "e", 1) -> -3 | |
737 | * index_name_pos(&index, "f", 1) -> -3 | |
738 | * index_name_pos(&index, "g", 1) -> -5 | |
739 | */ | |
d1f128b0 | 740 | extern int index_name_pos(const struct index_state *, const char *name, int namelen); |
12733e9d | 741 | |
192268c1 JH |
742 | #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */ |
743 | #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */ | |
b155725d | 744 | #define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */ |
af3785dc | 745 | #define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */ |
39425819 | 746 | #define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */ |
ce7c614b | 747 | #define ADD_CACHE_KEEP_CACHE_TREE 32 /* Do not invalidate cache-tree */ |
4aab5b46 | 748 | extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option); |
81dc2307 | 749 | extern void rename_index_entry_at(struct index_state *, int pos, const char *new_name); |
3bd72adf SB |
750 | |
751 | /* Remove entry, return true if there are more entries to go. */ | |
4aab5b46 | 752 | extern int remove_index_entry_at(struct index_state *, int pos); |
3bd72adf | 753 | |
36419c8e | 754 | extern void remove_marked_cache_entries(struct index_state *istate); |
4aab5b46 | 755 | extern int remove_file_from_index(struct index_state *, const char *path); |
38ed1d89 JH |
756 | #define ADD_CACHE_VERBOSE 1 |
757 | #define ADD_CACHE_PRETEND 2 | |
01665924 | 758 | #define ADD_CACHE_IGNORE_ERRORS 4 |
041aee31 | 759 | #define ADD_CACHE_IGNORE_REMOVAL 8 |
39425819 | 760 | #define ADD_CACHE_INTENT 16 |
20cf41d0 SB |
761 | /* |
762 | * These two are used to add the contents of the file at path | |
763 | * to the index, marking the working tree up-to-date by storing | |
764 | * the cached stat info in the resulting cache entry. A caller | |
765 | * that has already run lstat(2) on the path can call | |
766 | * add_to_index(), and all others can call add_file_to_index(); | |
767 | * the latter will do necessary lstat(2) internally before | |
768 | * calling the former. | |
769 | */ | |
610d55af TG |
770 | extern int add_to_index(struct index_state *, const char *path, struct stat *, int flags); |
771 | extern int add_file_to_index(struct index_state *, const char *path, int flags); | |
20cf41d0 | 772 | |
d9d70966 | 773 | extern int chmod_index_entry(struct index_state *, struct cache_entry *ce, char flip); |
9c5e6c80 | 774 | extern int ce_same_name(const struct cache_entry *a, const struct cache_entry *b); |
b4b313f9 | 775 | extern void set_object_name_for_intent_to_add_entry(struct cache_entry *ce); |
98fa4738 | 776 | extern int index_name_is_other(const struct index_state *, const char *, int); |
87542508 | 777 | extern void *read_blob_data_from_index(const struct index_state *, const char *, unsigned long *); |
4bd5b7da JH |
778 | |
779 | /* do stat comparison even if CE_VALID is true */ | |
780 | #define CE_MATCH_IGNORE_VALID 01 | |
781 | /* do not check the contents but report dirty on racily-clean entries */ | |
56cac48c NTND |
782 | #define CE_MATCH_RACY_IS_DIRTY 02 |
783 | /* do stat comparison even if CE_SKIP_WORKTREE is true */ | |
784 | #define CE_MATCH_IGNORE_SKIP_WORKTREE 04 | |
2e2e7ec1 BK |
785 | /* ignore non-existent files during stat update */ |
786 | #define CE_MATCH_IGNORE_MISSING 0x08 | |
25762726 BK |
787 | /* enable stat refresh */ |
788 | #define CE_MATCH_REFRESH 0x10 | |
883e248b BP |
789 | /* don't refresh_fsmonitor state or do stat comparison even if CE_FSMONITOR_VALID is true */ |
790 | #define CE_MATCH_IGNORE_FSMONITOR 0X20 | |
5581a019 SG |
791 | extern int is_racy_timestamp(const struct index_state *istate, |
792 | const struct cache_entry *ce); | |
883e248b BP |
793 | extern int ie_match_stat(struct index_state *, const struct cache_entry *, struct stat *, unsigned int); |
794 | extern int ie_modified(struct index_state *, const struct cache_entry *, struct stat *, unsigned int); | |
4bd5b7da | 795 | |
c4ce46fc JH |
796 | #define HASH_WRITE_OBJECT 1 |
797 | #define HASH_FORMAT_CHECK 2 | |
9472935d | 798 | #define HASH_RENORMALIZE 4 |
58bf2a4c NTND |
799 | extern int index_fd(struct index_state *istate, struct object_id *oid, int fd, struct stat *st, enum object_type type, const char *path, unsigned flags); |
800 | extern int index_path(struct index_state *istate, struct object_id *oid, const char *path, struct stat *st, unsigned flags); | |
c21d39d7 MH |
801 | |
802 | /* | |
803 | * Record to sd the data from st that we use to check whether a file | |
804 | * might have changed. | |
805 | */ | |
806 | extern void fill_stat_data(struct stat_data *sd, struct stat *st); | |
807 | ||
808 | /* | |
809 | * Return 0 if st is consistent with a file not having been changed | |
810 | * since sd was filled. If there are differences, return a | |
811 | * combination of MTIME_CHANGED, CTIME_CHANGED, OWNER_CHANGED, | |
812 | * INODE_CHANGED, and DATA_CHANGED. | |
813 | */ | |
814 | extern int match_stat_data(const struct stat_data *sd, struct stat *st); | |
ed4efab1 NTND |
815 | extern int match_stat_data_racy(const struct index_state *istate, |
816 | const struct stat_data *sd, struct stat *st); | |
c21d39d7 | 817 | |
415e96c8 JH |
818 | extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st); |
819 | ||
405e5b2f LT |
820 | #define REFRESH_REALLY 0x0001 /* ignore_valid */ |
821 | #define REFRESH_UNMERGED 0x0002 /* allow unmerged */ | |
822 | #define REFRESH_QUIET 0x0004 /* be quiet about it */ | |
823 | #define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */ | |
3f1b7b60 | 824 | #define REFRESH_IGNORE_SUBMODULES 0x0010 /* ignore submodules */ |
43673fdd | 825 | #define REFRESH_IN_PORCELAIN 0x0020 /* user friendly output, not "needs update" */ |
ae9af122 | 826 | #define REFRESH_PROGRESS 0x0040 /* show progress bar if stderr is tty */ |
9b2d6149 | 827 | extern int refresh_index(struct index_state *, unsigned int flags, const struct pathspec *pathspec, char *seen, const char *header_msg); |
768d7965 | 828 | extern struct cache_entry *refresh_cache_entry(struct index_state *, struct cache_entry *, unsigned int); |
405e5b2f | 829 | |
b74c90fb MÅ |
830 | /* |
831 | * Opportunistically update the index but do not complain if we can't. | |
832 | * The lockfile is always committed or rolled back. | |
833 | */ | |
ccdc4ec3 | 834 | extern void update_index_if_able(struct index_state *, struct lock_file *); |
30ca07a2 JH |
835 | |
836 | extern int hold_locked_index(struct lock_file *, int); | |
5e7f56ac | 837 | extern void set_alternate_index_output(const char *); |
697cc8ef | 838 | |
a33fc72f | 839 | extern int verify_index_checksum; |
00ec50e5 | 840 | extern int verify_ce_order; |
a33fc72f | 841 | |
2ae1c53b | 842 | /* Environment bits from configuration mechanism */ |
17712991 | 843 | extern int trust_executable_bit; |
1ce4790b | 844 | extern int trust_ctime; |
c08e4d5b | 845 | extern int check_stat; |
9378c161 | 846 | extern int quote_path_fully; |
78a8d641 | 847 | extern int has_symlinks; |
dce96489 | 848 | extern int minimum_abbrev, default_abbrev; |
0a9b88b7 | 849 | extern int ignore_case; |
5f73076c | 850 | extern int assume_unchanged; |
9f0bb90d | 851 | extern int prefer_symlink_refs; |
2f8acdb3 | 852 | extern int warn_ambiguous_refs; |
25fba78d | 853 | extern int warn_on_object_refname_ambiguity; |
2ae1c53b | 854 | extern const char *apply_default_whitespace; |
86c91f91 | 855 | extern const char *apply_default_ignorewhitespace; |
64589a03 | 856 | extern const char *git_attributes_file; |
867ad08a | 857 | extern const char *git_hooks_path; |
12f6c308 | 858 | extern int zlib_compression_level; |
960ccca6 | 859 | extern int core_compression_level; |
8de7eeb5 | 860 | extern int pack_compression_level; |
60bb8b14 | 861 | extern size_t packed_git_window_size; |
77ccc5bb | 862 | extern size_t packed_git_limit; |
18bdec11 | 863 | extern size_t delta_base_cache_limit; |
15366280 | 864 | extern unsigned long big_file_threshold; |
568508e7 | 865 | extern unsigned long pack_size_limit_cfg; |
afc711b8 | 866 | |
4543926b JK |
867 | /* |
868 | * Accessors for the core.sharedrepository config which lazy-load the value | |
869 | * from the config (if not already set). The "reset" function can be | |
870 | * used to unset "set" or cached value, meaning that the value will be loaded | |
871 | * fresh from the config file on the next call to get_shared_repository(). | |
872 | */ | |
7875acb6 JK |
873 | void set_shared_repository(int value); |
874 | int get_shared_repository(void); | |
4543926b | 875 | void reset_shared_repository(void); |
7875acb6 | 876 | |
afc711b8 MH |
877 | /* |
878 | * Do replace refs need to be checked this run? This variable is | |
879 | * initialized to true unless --no-replace-object is used or | |
880 | * $GIT_NO_REPLACE_OBJECTS is set, but is set to false by some | |
72470aa3 | 881 | * commands that do not want replace references to be active. |
afc711b8 | 882 | */ |
6ebd1caf | 883 | extern int read_replace_refs; |
58d121b2 | 884 | extern char *git_replace_ref_base; |
afc711b8 | 885 | |
aafe9fba | 886 | extern int fsync_object_files; |
671c9b7e | 887 | extern int core_preload_index; |
08aefc9e | 888 | extern int core_apply_sparse_checkout; |
76759c7d | 889 | extern int precomposed_unicode; |
a42643aa | 890 | extern int protect_hfs; |
2b4c6efc | 891 | extern int protect_ntfs; |
883e248b | 892 | extern const char *core_fsmonitor; |
17712991 | 893 | |
49672f26 JK |
894 | /* |
895 | * Include broken refs in all ref iterations, which will | |
896 | * generally choke dangerous operations rather than letting | |
897 | * them silently proceed without taking the broken ref into | |
898 | * account. | |
899 | */ | |
900 | extern int ref_paranoia; | |
901 | ||
27344d6a JK |
902 | /* |
903 | * Returns the boolean value of $GIT_OPTIONAL_LOCKS (or the default value). | |
904 | */ | |
905 | int use_optional_locks(void); | |
906 | ||
eff80a9f JH |
907 | /* |
908 | * The character that begins a commented line in user-editable file | |
909 | * that is subject to stripspace. | |
910 | */ | |
911 | extern char comment_line_char; | |
84c9dc2c | 912 | extern int auto_comment_line_char; |
eff80a9f | 913 | |
341fb286 CW |
914 | enum log_refs_config { |
915 | LOG_REFS_UNSET = -1, | |
916 | LOG_REFS_NONE = 0, | |
917 | LOG_REFS_NORMAL, | |
918 | LOG_REFS_ALWAYS | |
919 | }; | |
920 | extern enum log_refs_config log_all_ref_updates; | |
921 | ||
c998ae9b DS |
922 | enum rebase_setup_type { |
923 | AUTOREBASE_NEVER = 0, | |
924 | AUTOREBASE_LOCAL, | |
925 | AUTOREBASE_REMOTE, | |
4b05548f | 926 | AUTOREBASE_ALWAYS |
c998ae9b DS |
927 | }; |
928 | ||
52153747 | 929 | enum push_default_type { |
52153747 FAG |
930 | PUSH_DEFAULT_NOTHING = 0, |
931 | PUSH_DEFAULT_MATCHING, | |
b55e6775 | 932 | PUSH_DEFAULT_SIMPLE, |
53c40311 | 933 | PUSH_DEFAULT_UPSTREAM, |
f25950f3 CT |
934 | PUSH_DEFAULT_CURRENT, |
935 | PUSH_DEFAULT_UNSPECIFIED | |
52153747 FAG |
936 | }; |
937 | ||
c998ae9b | 938 | extern enum rebase_setup_type autorebase; |
52153747 | 939 | extern enum push_default_type push_default; |
9ed36cfa | 940 | |
348df166 JS |
941 | enum object_creation_mode { |
942 | OBJECT_CREATION_USES_HARDLINKS = 0, | |
4b05548f | 943 | OBJECT_CREATION_USES_RENAMES = 1 |
348df166 JS |
944 | }; |
945 | ||
946 | extern enum object_creation_mode object_creation_mode; | |
be66a6c4 | 947 | |
a97a7468 JS |
948 | extern char *notes_ref_name; |
949 | ||
7f3140cd JS |
950 | extern int grafts_replace_parents; |
951 | ||
00a09d57 JK |
952 | /* |
953 | * GIT_REPO_VERSION is the version we write by default. The | |
954 | * _READ variant is the highest number we know how to | |
955 | * handle. | |
956 | */ | |
ab9cb76f | 957 | #define GIT_REPO_VERSION 0 |
00a09d57 | 958 | #define GIT_REPO_VERSION_READ 1 |
067fbd41 | 959 | extern int repository_format_precious_objects; |
75b97fec | 960 | extern char *repository_format_partial_clone; |
1e1e39b3 | 961 | extern const char *core_partial_clone_filter_default; |
58b284a2 | 962 | extern int repository_format_worktree_config; |
4b0d1eeb | 963 | |
2cc7c2c7 JK |
964 | struct repository_format { |
965 | int version; | |
966 | int precious_objects; | |
75b97fec | 967 | char *partial_clone; /* value of extensions.partialclone */ |
58b284a2 | 968 | int worktree_config; |
2cc7c2c7 | 969 | int is_bare; |
78a67668 | 970 | int hash_algo; |
2cc7c2c7 JK |
971 | char *work_tree; |
972 | struct string_list unknown_extensions; | |
973 | }; | |
974 | ||
975 | /* | |
976 | * Read the repository format characteristics from the config file "path" into | |
977 | * "format" struct. Returns the numeric version. On error, -1 is returned, | |
978 | * format->version is set to -1, and all other fields in the struct are | |
979 | * undefined. | |
980 | */ | |
981 | int read_repository_format(struct repository_format *format, const char *path); | |
982 | ||
983 | /* | |
984 | * Verify that the repository described by repository_format is something we | |
985 | * can read. If it is, return 0. Otherwise, return -1, and "err" will describe | |
986 | * any errors encountered. | |
987 | */ | |
988 | int verify_repository_format(const struct repository_format *format, | |
989 | struct strbuf *err); | |
990 | ||
4b0d1eeb JK |
991 | /* |
992 | * Check the repository format version in the path found in get_git_dir(), | |
993 | * and die if it is a version we don't understand. Generally one would | |
994 | * set_git_dir() before calling this, and use it only for "are we in a valid | |
995 | * repo?". | |
996 | */ | |
997 | extern void check_repository_format(void); | |
ab9cb76f | 998 | |
734aab75 LT |
999 | #define MTIME_CHANGED 0x0001 |
1000 | #define CTIME_CHANGED 0x0002 | |
1001 | #define OWNER_CHANGED 0x0004 | |
1002 | #define MODE_CHANGED 0x0008 | |
1003 | #define INODE_CHANGED 0x0010 | |
1004 | #define DATA_CHANGED 0x0020 | |
8ae0a8c5 | 1005 | #define TYPE_CHANGED 0x0040 |
e83c5163 | 1006 | |
af49c6d0 JK |
1007 | /* |
1008 | * Return an abbreviated sha1 unique within this repository's object database. | |
1009 | * The result will be at least `len` characters long, and will be NUL | |
1010 | * terminated. | |
1011 | * | |
ef2ed501 JK |
1012 | * The non-`_r` version returns a static buffer which remains valid until 4 |
1013 | * more calls to find_unique_abbrev are made. | |
af49c6d0 JK |
1014 | * |
1015 | * The `_r` variant writes to a buffer supplied by the caller, which must be at | |
aab9583f | 1016 | * least `GIT_MAX_HEXSZ + 1` bytes. The return value is the number of bytes |
af49c6d0 JK |
1017 | * written (excluding the NUL terminator). |
1018 | * | |
1019 | * Note that while this version avoids the static buffer, it is not fully | |
1020 | * reentrant, as it calls into other non-reentrant git code. | |
1021 | */ | |
aab9583f | 1022 | extern const char *find_unique_abbrev(const struct object_id *oid, int len); |
1023 | extern int find_unique_abbrev_r(char *hex, const struct object_id *oid, int len); | |
af49c6d0 | 1024 | |
cd02599c | 1025 | extern const unsigned char null_sha1[GIT_MAX_RAWSZ]; |
3e56e724 | 1026 | extern const struct object_id null_oid; |
1a812f3a IM |
1027 | |
1028 | static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2) | |
0bef57ee | 1029 | { |
183a638b JK |
1030 | /* |
1031 | * This is a temporary optimization hack. By asserting the size here, | |
1032 | * we let the compiler know that it's always going to be 20, which lets | |
1033 | * it turn this fixed-size memcmp into a few inline instructions. | |
1034 | * | |
1035 | * This will need to be extended or ripped out when we learn about | |
1036 | * hashes of different sizes. | |
1037 | */ | |
1038 | if (the_hash_algo->rawsz != 20) | |
1039 | BUG("hash size not yet supported by hashcmp"); | |
509f6f62 | 1040 | return memcmp(sha1, sha2, the_hash_algo->rawsz); |
0bef57ee | 1041 | } |
1a812f3a | 1042 | |
aa1c6fdf | 1043 | static inline int oidcmp(const struct object_id *oid1, const struct object_id *oid2) |
1044 | { | |
1045 | return hashcmp(oid1->hash, oid2->hash); | |
1046 | } | |
1047 | ||
14438c44 JK |
1048 | static inline int hasheq(const unsigned char *sha1, const unsigned char *sha2) |
1049 | { | |
1050 | return !hashcmp(sha1, sha2); | |
1051 | } | |
1052 | ||
1053 | static inline int oideq(const struct object_id *oid1, const struct object_id *oid2) | |
1054 | { | |
1055 | return hasheq(oid1->hash, oid2->hash); | |
1056 | } | |
1057 | ||
1a812f3a | 1058 | static inline int is_null_sha1(const unsigned char *sha1) |
a89fccd2 | 1059 | { |
e3ff0683 | 1060 | return hasheq(sha1, null_sha1); |
a89fccd2 | 1061 | } |
1a812f3a | 1062 | |
aa1c6fdf | 1063 | static inline int is_null_oid(const struct object_id *oid) |
1064 | { | |
e3ff0683 | 1065 | return hasheq(oid->hash, null_sha1); |
aa1c6fdf | 1066 | } |
1067 | ||
e702496e SP |
1068 | static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src) |
1069 | { | |
509f6f62 | 1070 | memcpy(sha_dst, sha_src, the_hash_algo->rawsz); |
e702496e | 1071 | } |
aa1c6fdf | 1072 | |
1073 | static inline void oidcpy(struct object_id *dst, const struct object_id *src) | |
1074 | { | |
1075 | hashcpy(dst->hash, src->hash); | |
e702496e | 1076 | } |
aa1c6fdf | 1077 | |
1c41c82b BW |
1078 | static inline struct object_id *oiddup(const struct object_id *src) |
1079 | { | |
1080 | struct object_id *dst = xmalloc(sizeof(struct object_id)); | |
1081 | oidcpy(dst, src); | |
1082 | return dst; | |
1083 | } | |
1084 | ||
a8e0d16d JH |
1085 | static inline void hashclr(unsigned char *hash) |
1086 | { | |
509f6f62 | 1087 | memset(hash, 0, the_hash_algo->rawsz); |
a8e0d16d | 1088 | } |
e83c5163 | 1089 | |
aa1c6fdf | 1090 | static inline void oidclr(struct object_id *oid) |
1091 | { | |
97a41a0c | 1092 | memset(oid->hash, 0, GIT_MAX_RAWSZ); |
aa1c6fdf | 1093 | } |
1094 | ||
69d12425 | 1095 | static inline void oidread(struct object_id *oid, const unsigned char *hash) |
1096 | { | |
1097 | memcpy(oid->hash, hash, the_hash_algo->rawsz); | |
1098 | } | |
f8582cad JK |
1099 | |
1100 | static inline int is_empty_blob_sha1(const unsigned char *sha1) | |
1101 | { | |
e3ff0683 | 1102 | return hasheq(sha1, the_hash_algo->empty_blob->hash); |
f8582cad JK |
1103 | } |
1104 | ||
8576fde6 JK |
1105 | static inline int is_empty_blob_oid(const struct object_id *oid) |
1106 | { | |
4a7e27e9 | 1107 | return oideq(oid, the_hash_algo->empty_blob); |
8576fde6 JK |
1108 | } |
1109 | ||
1110 | static inline int is_empty_tree_sha1(const unsigned char *sha1) | |
1111 | { | |
e3ff0683 | 1112 | return hasheq(sha1, the_hash_algo->empty_tree->hash); |
8576fde6 JK |
1113 | } |
1114 | ||
1115 | static inline int is_empty_tree_oid(const struct object_id *oid) | |
1116 | { | |
4a7e27e9 | 1117 | return oideq(oid, the_hash_algo->empty_tree); |
8576fde6 JK |
1118 | } |
1119 | ||
d8a92ced | 1120 | const char *empty_tree_oid_hex(void); |
1121 | const char *empty_blob_oid_hex(void); | |
1122 | ||
b862b61c MM |
1123 | /* set default permissions by passing mode arguments to open(2) */ |
1124 | int git_mkstemps_mode(char *pattern, int suffix_len, int mode); | |
1125 | int git_mkstemp_mode(char *pattern, int mode); | |
1126 | ||
06cbe855 HO |
1127 | /* |
1128 | * NOTE NOTE NOTE!! | |
1129 | * | |
1130 | * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must | |
1131 | * not be changed. Old repositories have core.sharedrepository written in | |
1132 | * numeric format, and therefore these values are preserved for compatibility | |
1133 | * reasons. | |
1134 | */ | |
94df2506 | 1135 | enum sharedrepo { |
06cbe855 HO |
1136 | PERM_UMASK = 0, |
1137 | OLD_PERM_GROUP = 1, | |
1138 | OLD_PERM_EVERYBODY = 2, | |
1139 | PERM_GROUP = 0660, | |
4b05548f | 1140 | PERM_EVERYBODY = 0664 |
94df2506 JH |
1141 | }; |
1142 | int git_config_perm(const char *var, const char *value); | |
3a429d3b | 1143 | int adjust_shared_perm(const char *path); |
0be0521b MH |
1144 | |
1145 | /* | |
1146 | * Create the directory containing the named path, using care to be | |
204a047f MH |
1147 | * somewhat safe against races. Return one of the scld_error values to |
1148 | * indicate success/failure. On error, set errno to describe the | |
1149 | * problem. | |
18d37e86 MH |
1150 | * |
1151 | * SCLD_VANISHED indicates that one of the ancestor directories of the | |
1152 | * path existed at one point during the function call and then | |
1153 | * suddenly vanished, probably because another process pruned the | |
1154 | * directory while we were working. To be robust against this kind of | |
1155 | * race, callers might want to try invoking the function again when it | |
1156 | * returns SCLD_VANISHED. | |
e95792e5 MH |
1157 | * |
1158 | * safe_create_leading_directories() temporarily changes path while it | |
1159 | * is working but restores it before returning. | |
1160 | * safe_create_leading_directories_const() doesn't modify path, even | |
1161 | * temporarily. | |
0be0521b MH |
1162 | */ |
1163 | enum scld_error { | |
1164 | SCLD_OK = 0, | |
1165 | SCLD_FAILED = -1, | |
1166 | SCLD_PERMS = -2, | |
18d37e86 MH |
1167 | SCLD_EXISTS = -3, |
1168 | SCLD_VANISHED = -4 | |
0be0521b MH |
1169 | }; |
1170 | enum scld_error safe_create_leading_directories(char *path); | |
1171 | enum scld_error safe_create_leading_directories_const(const char *path); | |
1172 | ||
177978f5 MH |
1173 | /* |
1174 | * Callback function for raceproof_create_file(). This function is | |
1175 | * expected to do something that makes dirname(path) permanent despite | |
1176 | * the fact that other processes might be cleaning up empty | |
1177 | * directories at the same time. Usually it will create a file named | |
1178 | * path, but alternatively it could create another file in that | |
1179 | * directory, or even chdir() into that directory. The function should | |
1180 | * return 0 if the action was completed successfully. On error, it | |
1181 | * should return a nonzero result and set errno. | |
1182 | * raceproof_create_file() treats two errno values specially: | |
1183 | * | |
1184 | * - ENOENT -- dirname(path) does not exist. In this case, | |
1185 | * raceproof_create_file() tries creating dirname(path) | |
1186 | * (and any parent directories, if necessary) and calls | |
1187 | * the function again. | |
1188 | * | |
1189 | * - EISDIR -- the file already exists and is a directory. In this | |
1190 | * case, raceproof_create_file() removes the directory if | |
1191 | * it is empty (and recursively any empty directories that | |
1192 | * it contains) and calls the function again. | |
1193 | * | |
1194 | * Any other errno causes raceproof_create_file() to fail with the | |
1195 | * callback's return value and errno. | |
1196 | * | |
1197 | * Obviously, this function should be OK with being called again if it | |
1198 | * fails with ENOENT or EISDIR. In other scenarios it will not be | |
1199 | * called again. | |
1200 | */ | |
1201 | typedef int create_file_fn(const char *path, void *cb); | |
1202 | ||
1203 | /* | |
1204 | * Create a file in dirname(path) by calling fn, creating leading | |
1205 | * directories if necessary. Retry a few times in case we are racing | |
1206 | * with another process that is trying to clean up the directory that | |
1207 | * contains path. See the documentation for create_file_fn for more | |
1208 | * details. | |
1209 | * | |
1210 | * Return the value and set the errno that resulted from the most | |
1211 | * recent call of fn. fn is always called at least once, and will be | |
1212 | * called more than once if it returns ENOENT or EISDIR. | |
1213 | */ | |
1214 | int raceproof_create_file(const char *path, create_file_fn fn, void *cb); | |
1215 | ||
90a6464b | 1216 | int mkdir_in_gitdir(const char *path); |
4aad2f16 | 1217 | extern char *expand_user_path(const char *path, int real_home); |
1c64b48e | 1218 | const char *enter_repo(const char *path, int strict); |
e5392c51 JS |
1219 | static inline int is_absolute_path(const char *path) |
1220 | { | |
88135203 | 1221 | return is_dir_sep(path[0]) || has_dos_drive_prefix(path); |
e5392c51 | 1222 | } |
90b4a71c | 1223 | int is_directory(const char *); |
a1ae4841 BW |
1224 | char *strbuf_realpath(struct strbuf *resolved, const char *path, |
1225 | int die_on_error); | |
e2a57aac | 1226 | const char *real_path(const char *path); |
e3e46cdb | 1227 | const char *real_path_if_valid(const char *path); |
ce83eadd | 1228 | char *real_pathdup(const char *path, int die_on_error); |
e2a57aac | 1229 | const char *absolute_path(const char *path); |
b1edb40f | 1230 | char *absolute_pathdup(const char *path); |
41894ae3 | 1231 | const char *remove_leading_path(const char *in, const char *prefix); |
e02ca72f | 1232 | const char *relative_path(const char *in, const char *prefix, struct strbuf *sb); |
645a29c4 | 1233 | int normalize_path_copy_len(char *dst, const char *src, int *prefix_len); |
f3cad0ad | 1234 | int normalize_path_copy(char *dst, const char *src); |
31171d9e | 1235 | int longest_ancestor_length(const char *path, struct string_list *prefixes); |
4fcc86b0 | 1236 | char *strip_path_suffix(const char *path, const char *suffix); |
34b6cb8b | 1237 | int daemon_avoid_alias(const char *path); |
e7cb0b44 JS |
1238 | |
1239 | /* | |
1240 | * These functions match their is_hfs_dotgit() counterparts; see utf8.h for | |
1241 | * details. | |
1242 | */ | |
1243 | int is_ntfs_dotgit(const char *name); | |
1244 | int is_ntfs_dotgitmodules(const char *name); | |
1245 | int is_ntfs_dotgitignore(const char *name); | |
1246 | int is_ntfs_dotgitattributes(const char *name); | |
b2cb9425 | 1247 | |
2491f77b JK |
1248 | /* |
1249 | * Returns true iff "str" could be confused as a command-line option when | |
1250 | * passed to a sub-program like "ssh". Note that this has nothing to do with | |
1251 | * shell-quoting, which should be handled separately; we're assuming here that | |
1252 | * the string makes it verbatim to the sub-program. | |
1253 | */ | |
1254 | int looks_like_command_line_option(const char *str); | |
1255 | ||
ea19289b PT |
1256 | /** |
1257 | * Return a newly allocated string with the evaluation of | |
1258 | * "$XDG_CONFIG_HOME/git/$filename" if $XDG_CONFIG_HOME is non-empty, otherwise | |
1259 | * "$HOME/.config/git/$filename". Return NULL upon error. | |
1260 | */ | |
1261 | extern char *xdg_config_home(const char *filename); | |
1262 | ||
e7f136bf DL |
1263 | /** |
1264 | * Return a newly allocated string with the evaluation of | |
1265 | * "$XDG_CACHE_HOME/git/$filename" if $XDG_CACHE_HOME is non-empty, otherwise | |
1266 | * "$HOME/.cache/git/$filename". Return NULL upon error. | |
1267 | */ | |
1268 | extern char *xdg_cache_home(const char *filename); | |
1269 | ||
1b8ac5ea | 1270 | extern int git_open_cloexec(const char *name, int flags); |
b4d065df | 1271 | #define git_open(name) git_open_cloexec(name, O_RDONLY) |
eb4f4076 | 1272 | extern int unpack_sha1_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz); |
f0270efd | 1273 | extern int parse_sha1_header(const char *hdr, unsigned long *sizep); |
8237b185 | 1274 | |
17e65451 | 1275 | extern int check_object_signature(const struct object_id *oid, void *buf, unsigned long size, const char *type); |
e83c5163 | 1276 | |
cb5add58 | 1277 | extern int finalize_object_file(const char *tmpfile, const char *filename); |
8237b185 | 1278 | |
6a5e6f5e CC |
1279 | /* Helper to check and "touch" a file */ |
1280 | extern int check_and_freshen_file(const char *fn, int freshen); | |
1281 | ||
192a6be2 LT |
1282 | extern const signed char hexval_table[256]; |
1283 | static inline unsigned int hexval(unsigned char c) | |
e49521b5 JH |
1284 | { |
1285 | return hexval_table[c]; | |
1286 | } | |
1287 | ||
d2330973 RS |
1288 | /* |
1289 | * Convert two consecutive hexadecimal digits into a char. Return a | |
1290 | * negative value on error. Don't run over the end of short strings. | |
1291 | */ | |
1292 | static inline int hex2chr(const char *s) | |
1293 | { | |
356a293f RJ |
1294 | unsigned int val = hexval(s[0]); |
1295 | return (val & ~0xf) ? val : (val << 4) | hexval(s[1]); | |
d2330973 RS |
1296 | } |
1297 | ||
e83c5163 | 1298 | /* Convert to/from hex/sha1 representation */ |
dce96489 LT |
1299 | #define MINIMUM_ABBREV minimum_abbrev |
1300 | #define DEFAULT_ABBREV default_abbrev | |
46a6c262 | 1301 | |
65acfeac JH |
1302 | /* used when the code does not know or care what the default abbrev is */ |
1303 | #define FALLBACK_DEFAULT_ABBREV 7 | |
1304 | ||
573285e5 | 1305 | struct object_context { |
573285e5 | 1306 | unsigned mode; |
c4ec9677 DT |
1307 | /* |
1308 | * symlink_path is only used by get_tree_entry_follow_symlinks, | |
1309 | * and only for symlinks that point outside the repository. | |
1310 | */ | |
1311 | struct strbuf symlink_path; | |
dc944b65 | 1312 | /* |
321c89bf | 1313 | * If GET_OID_RECORD_PATH is set, this will record path (if any) |
dc944b65 JK |
1314 | * found when resolving the name. The caller is responsible for |
1315 | * releasing the memory. | |
1316 | */ | |
1317 | char *path; | |
573285e5 CP |
1318 | }; |
1319 | ||
321c89bf | 1320 | #define GET_OID_QUIETLY 01 |
1321 | #define GET_OID_COMMIT 02 | |
1322 | #define GET_OID_COMMITTISH 04 | |
1323 | #define GET_OID_TREE 010 | |
1324 | #define GET_OID_TREEISH 020 | |
1325 | #define GET_OID_BLOB 040 | |
1326 | #define GET_OID_FOLLOW_SYMLINKS 0100 | |
1327 | #define GET_OID_RECORD_PATH 0200 | |
1328 | #define GET_OID_ONLY_TO_DIE 04000 | |
1329 | ||
1330 | #define GET_OID_DISAMBIGUATORS \ | |
1331 | (GET_OID_COMMIT | GET_OID_COMMITTISH | \ | |
1332 | GET_OID_TREE | GET_OID_TREEISH | \ | |
1333 | GET_OID_BLOB) | |
d4e85a1a | 1334 | |
2764fd93 | 1335 | extern int get_oid(const char *str, struct object_id *oid); |
e82caf38 | 1336 | extern int get_oid_commit(const char *str, struct object_id *oid); |
1337 | extern int get_oid_committish(const char *str, struct object_id *oid); | |
1338 | extern int get_oid_tree(const char *str, struct object_id *oid); | |
1339 | extern int get_oid_treeish(const char *str, struct object_id *oid); | |
1340 | extern int get_oid_blob(const char *str, struct object_id *oid); | |
8c135ea2 | 1341 | extern void maybe_die_on_misspelt_object_name(const char *name, const char *prefix); |
e82caf38 | 1342 | extern int get_oid_with_context(const char *str, unsigned flags, struct object_id *oid, struct object_context *oc); |
d4e85a1a | 1343 | |
2764fd93 | 1344 | |
1b7ba794 | 1345 | typedef int each_abbrev_fn(const struct object_id *oid, void *); |
957d7406 | 1346 | extern int for_each_abbrev(const char *prefix, each_abbrev_fn, void *); |
d4e85a1a | 1347 | |
5b33cb1f JK |
1348 | extern int set_disambiguate_hint_config(const char *var, const char *value); |
1349 | ||
d4e85a1a MH |
1350 | /* |
1351 | * Try to read a SHA1 in hexadecimal format from the 40 characters | |
1352 | * starting at hex. Write the 20-byte result to sha1 in binary form. | |
1353 | * Return 0 on success. Reading stops if a NUL is encountered in the | |
1354 | * input, so it is safe to pass this function an arbitrary | |
1355 | * null-terminated string. | |
1356 | */ | |
197ee8c9 | 1357 | extern int get_sha1_hex(const char *hex, unsigned char *sha1); |
aa1c6fdf | 1358 | extern int get_oid_hex(const char *hex, struct object_id *sha1); |
d4e85a1a | 1359 | |
0ec21865 RS |
1360 | /* |
1361 | * Read `len` pairs of hexadecimal digits from `hex` and write the | |
1362 | * values to `binary` as `len` bytes. Return 0 on success, or -1 if | |
1363 | * the input does not consist of hex digits). | |
1364 | */ | |
1365 | extern int hex_to_bytes(unsigned char *binary, const char *hex, size_t len); | |
1366 | ||
af49c6d0 JK |
1367 | /* |
1368 | * Convert a binary sha1 to its hex equivalent. The `_r` variant is reentrant, | |
1369 | * and writes the NUL-terminated output to the buffer `out`, which must be at | |
1370 | * least `GIT_SHA1_HEXSZ + 1` bytes, and returns a pointer to out for | |
1371 | * convenience. | |
1372 | * | |
1373 | * The non-`_r` variant returns a static buffer, but uses a ring of 4 | |
1374 | * buffers, making it safe to make multiple calls for a single statement, like: | |
1375 | * | |
1376 | * printf("%s -> %s", sha1_to_hex(one), sha1_to_hex(two)); | |
1377 | */ | |
1378 | extern char *sha1_to_hex_r(char *out, const unsigned char *sha1); | |
55c529a7 | 1379 | extern char *oid_to_hex_r(char *out, const struct object_id *oid); |
197ee8c9 | 1380 | extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */ |
aa1c6fdf | 1381 | extern char *oid_to_hex(const struct object_id *oid); /* same static buffer as sha1_to_hex */ |
7cb36842 | 1382 | |
605f430e | 1383 | /* |
1384 | * Parse a 40-character hexadecimal object ID starting from hex, updating the | |
1385 | * pointer specified by end when parsing stops. The resulting object ID is | |
1386 | * stored in oid. Returns 0 on success. Parsing will stop on the first NUL or | |
1387 | * other invalid character. end is only updated on success; otherwise, it is | |
1388 | * unmodified. | |
1389 | */ | |
1390 | extern int parse_oid_hex(const char *hex, struct object_id *oid, const char **end); | |
1391 | ||
e322b60d JK |
1392 | /* |
1393 | * This reads short-hand syntax that not only evaluates to a commit | |
1394 | * object name, but also can act as if the end user spelled the name | |
1395 | * of the branch from the command line. | |
1396 | * | |
1397 | * - "@{-N}" finds the name of the Nth previous branch we were on, and | |
1398 | * places the name of the branch in the given buf and returns the | |
1399 | * number of characters parsed if successful. | |
1400 | * | |
1401 | * - "<branch>@{upstream}" finds the name of the other ref that | |
1402 | * <branch> is configured to merge with (missing <branch> defaults | |
1403 | * to the current branch), and places the name of the branch in the | |
1404 | * given buf and returns the number of characters parsed if | |
1405 | * successful. | |
1406 | * | |
1407 | * If the input is not of the accepted format, it returns a negative | |
1408 | * number to signal an error. | |
1409 | * | |
1410 | * If the input was ok but there are not N branch switches in the | |
1411 | * reflog, it returns 0. | |
0e9f62da JK |
1412 | * |
1413 | * If "allowed" is non-zero, it is a treated as a bitfield of allowable | |
1414 | * expansions: local branches ("refs/heads/"), remote branches | |
1415 | * ("refs/remotes/"), or "HEAD". If no "allowed" bits are set, any expansion is | |
1416 | * allowed, even ones to refs outside of those namespaces. | |
e322b60d | 1417 | */ |
0e9f62da JK |
1418 | #define INTERPRET_BRANCH_LOCAL (1<<0) |
1419 | #define INTERPRET_BRANCH_REMOTE (1<<1) | |
1420 | #define INTERPRET_BRANCH_HEAD (1<<2) | |
1421 | extern int interpret_branch_name(const char *str, int len, struct strbuf *, | |
1422 | unsigned allowed); | |
151b2911 | 1423 | extern int get_oid_mb(const char *str, struct object_id *oid); |
e86eb666 | 1424 | |
c847f537 | 1425 | extern int validate_headref(const char *ref); |
e83c5163 | 1426 | |
958ba6c9 | 1427 | extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2); |
0ab9e1e8 | 1428 | extern int df_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2); |
ccdd4a0f | 1429 | extern int name_compare(const char *name1, size_t len1, const char *name2, size_t len2); |
b60e188c | 1430 | extern int cache_name_stage_compare(const char *name1, int len1, int stage1, const char *name2, int len2, int stage2); |
e83c5163 | 1431 | |
02f0547e | 1432 | extern void *read_object_with_reference(const struct object_id *oid, |
bf0f910d | 1433 | const char *required_type, |
40469ee9 | 1434 | unsigned long *size, |
02f0547e | 1435 | struct object_id *oid_ret); |
f4913f91 | 1436 | |
81776315 JH |
1437 | extern struct object *peel_to_type(const char *name, int namelen, |
1438 | struct object *o, enum object_type); | |
1439 | ||
58930fdb JS |
1440 | enum date_mode_type { |
1441 | DATE_NORMAL = 0, | |
1442 | DATE_RELATIVE, | |
1443 | DATE_SHORT, | |
1444 | DATE_ISO8601, | |
1445 | DATE_ISO8601_STRICT, | |
1446 | DATE_RFC2822, | |
1447 | DATE_STRFTIME, | |
1448 | DATE_RAW, | |
1449 | DATE_UNIX | |
1450 | }; | |
1451 | ||
a5481a6c | 1452 | struct date_mode { |
58930fdb | 1453 | enum date_mode_type type; |
aa1462cc | 1454 | const char *strftime_fmt; |
add00ba2 | 1455 | int local; |
73013afd JH |
1456 | }; |
1457 | ||
a5481a6c JK |
1458 | /* |
1459 | * Convenience helper for passing a constant type, like: | |
1460 | * | |
1461 | * show_date(t, tz, DATE_MODE(NORMAL)); | |
1462 | */ | |
1463 | #define DATE_MODE(t) date_mode_from_type(DATE_##t) | |
1464 | struct date_mode *date_mode_from_type(enum date_mode_type type); | |
1465 | ||
dddbad72 JS |
1466 | const char *show_date(timestamp_t time, int timezone, const struct date_mode *mode); |
1467 | void show_date_relative(timestamp_t time, int tz, const struct timeval *now, | |
7d29afd4 | 1468 | struct strbuf *timebuf); |
c33ddc2e | 1469 | int parse_date(const char *date, struct strbuf *out); |
dddbad72 JS |
1470 | int parse_date_basic(const char *date, timestamp_t *timestamp, int *offset); |
1471 | int parse_expiry_date(const char *date, timestamp_t *timestamp); | |
c33ddc2e | 1472 | void datestamp(struct strbuf *out); |
93cfa7c7 | 1473 | #define approxidate(s) approxidate_careful((s), NULL) |
dddbad72 JS |
1474 | timestamp_t approxidate_careful(const char *, int *); |
1475 | timestamp_t approxidate_relative(const char *date, const struct timeval *now); | |
a5481a6c | 1476 | void parse_date_format(const char *format, struct date_mode *mode); |
dddbad72 | 1477 | int date_overflows(timestamp_t date); |
ecee9d9e | 1478 | |
f9bc573f | 1479 | #define IDENT_STRICT 1 |
b9f0ac17 | 1480 | #define IDENT_NO_DATE 2 |
c15e1987 | 1481 | #define IDENT_NO_NAME 4 |
749be728 JH |
1482 | extern const char *git_author_info(int); |
1483 | extern const char *git_committer_info(int); | |
798123af | 1484 | extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int); |
d9ccfe77 | 1485 | extern const char *fmt_name(const char *name, const char *email); |
9830534e | 1486 | extern const char *ident_default_name(void); |
bcb2b004 | 1487 | extern const char *ident_default_email(void); |
44fcb497 | 1488 | extern const char *git_editor(void); |
2aed0181 | 1489 | extern const char *git_sequence_editor(void); |
64778d24 | 1490 | extern const char *git_pager(int stdout_is_tty); |
a64f213d | 1491 | extern int is_terminal_dumb(void); |
9597921b | 1492 | extern int git_ident_config(const char *, const char *, void *); |
4d9c7e6f | 1493 | extern void reset_ident_date(void); |
6aa33f40 | 1494 | |
4b340cfa JH |
1495 | struct ident_split { |
1496 | const char *name_begin; | |
1497 | const char *name_end; | |
1498 | const char *mail_begin; | |
1499 | const char *mail_end; | |
1500 | const char *date_begin; | |
1501 | const char *date_end; | |
1502 | const char *tz_begin; | |
1503 | const char *tz_end; | |
1504 | }; | |
1505 | /* | |
1506 | * Signals an success with 0, but time part of the result may be NULL | |
1507 | * if the input lacks timestamp and zone | |
1508 | */ | |
1509 | extern int split_ident_line(struct ident_split *, const char *, int); | |
1510 | ||
d1053246 JK |
1511 | /* |
1512 | * Like show_date, but pull the timestamp and tz parameters from | |
1513 | * the ident_split. It will also sanity-check the values and produce | |
1514 | * a well-known sentinel date if they appear bogus. | |
1515 | */ | |
a5481a6c JK |
1516 | const char *show_ident_date(const struct ident_split *id, |
1517 | const struct date_mode *mode); | |
d1053246 | 1518 | |
662cc30c JK |
1519 | /* |
1520 | * Compare split idents for equality or strict ordering. Note that we | |
1521 | * compare only the ident part of the line, ignoring any timestamp. | |
1522 | * | |
1523 | * Because there are two fields, we must choose one as the primary key; we | |
1524 | * currently arbitrarily pick the email. | |
1525 | */ | |
1526 | extern int ident_cmp(const struct ident_split *, const struct ident_split *); | |
1527 | ||
12dccc16 | 1528 | struct checkout { |
d4a2024a | 1529 | struct index_state *istate; |
12dccc16 LT |
1530 | const char *base_dir; |
1531 | int base_dir_len; | |
2841e8f8 | 1532 | struct delayed_checkout *delayed_checkout; |
12dccc16 LT |
1533 | unsigned force:1, |
1534 | quiet:1, | |
1535 | not_new:1, | |
b878579a | 1536 | clone:1, |
12dccc16 LT |
1537 | refresh_cache:1; |
1538 | }; | |
68e3d629 | 1539 | #define CHECKOUT_INIT { NULL, "" } |
12dccc16 | 1540 | |
af2a651d | 1541 | #define TEMPORARY_FILENAME_LENGTH 25 |
efbc5831 | 1542 | extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath); |
2841e8f8 LS |
1543 | extern void enable_delayed_checkout(struct checkout *state); |
1544 | extern int finish_delayed_checkout(struct checkout *state); | |
b9fd2846 LT |
1545 | |
1546 | struct cache_def { | |
e7c73053 | 1547 | struct strbuf path; |
b9fd2846 LT |
1548 | int flags; |
1549 | int track_flags; | |
1550 | int prefix_len_stat_func; | |
1551 | }; | |
e7c73053 | 1552 | #define CACHE_DEF_INIT { STRBUF_INIT, 0, 0, 0 } |
2a608391 | 1553 | static inline void cache_def_clear(struct cache_def *cache) |
e7c73053 KB |
1554 | { |
1555 | strbuf_release(&cache->path); | |
1556 | } | |
b9fd2846 | 1557 | |
57199892 | 1558 | extern int has_symlink_leading_path(const char *name, int len); |
b9fd2846 | 1559 | extern int threaded_has_symlink_leading_path(struct cache_def *, const char *, int); |
f66caaf9 | 1560 | extern int check_leading_path(const char *name, int len); |
57199892 | 1561 | extern int has_dirs_only_path(const char *name, int len, int prefix_len); |
78478927 KB |
1562 | extern void schedule_dir_for_removal(const char *name, int len); |
1563 | extern void remove_scheduled_dirs(void); | |
12dccc16 | 1564 | |
c41ee586 SP |
1565 | struct pack_window { |
1566 | struct pack_window *next; | |
1567 | unsigned char *base; | |
1568 | off_t offset; | |
1569 | size_t len; | |
1570 | unsigned int last_used; | |
1571 | unsigned int inuse_cnt; | |
1572 | }; | |
1573 | ||
f3bf9224 | 1574 | struct pack_entry { |
c4001d92 | 1575 | off_t offset; |
f3bf9224 JH |
1576 | struct packed_git *p; |
1577 | }; | |
1578 | ||
82c9d661 | 1579 | /* |
892e723a JK |
1580 | * Create a temporary file rooted in the object database directory, or |
1581 | * die on failure. The filename is taken from "pattern", which should have the | |
1582 | * usual "XXXXXX" trailer, and the resulting filename is written into the | |
1583 | * "template" buffer. Returns the open descriptor. | |
82c9d661 | 1584 | */ |
a63b5fca | 1585 | extern int odb_mkstemp(struct strbuf *temp_filename, const char *pattern); |
82c9d661 JK |
1586 | |
1587 | /* | |
eaeefc32 JK |
1588 | * Create a pack .keep file named "name" (which should generally be the output |
1589 | * of odb_pack_name). Returns a file descriptor opened for writing, or -1 on | |
1590 | * error. | |
82c9d661 | 1591 | */ |
eaeefc32 | 1592 | extern int odb_pack_keep(const char *name); |
82c9d661 | 1593 | |
8b4c0103 JT |
1594 | /* |
1595 | * Set this to 0 to prevent sha1_object_info_extended() from fetching missing | |
1596 | * blobs. This has a difference only if extensions.partialClone is set. | |
1597 | * | |
1598 | * Its default value is 1. | |
1599 | */ | |
1600 | extern int fetch_if_missing; | |
1601 | ||
8f3f9b09 JH |
1602 | /* Dumb servers support */ |
1603 | extern int update_server_info(int); | |
1604 | ||
a6fa5992 PN |
1605 | extern const char *get_log_output_encoding(void); |
1606 | extern const char *get_commit_output_encoding(void); | |
1607 | ||
dae6c322 CC |
1608 | /* |
1609 | * This is a hack for test programs like test-dump-untracked-cache to | |
1610 | * ensure that they do not modify the untracked cache when reading it. | |
1611 | * Do not use it otherwise! | |
1612 | */ | |
1613 | extern int ignore_untracked_cache_config; | |
3c8687a7 | 1614 | |
d6991cee JK |
1615 | extern int committer_ident_sufficiently_given(void); |
1616 | extern int author_ident_sufficiently_given(void); | |
e1b10391 | 1617 | |
1a8f2741 | 1618 | extern const char *git_commit_encoding; |
3a55602e | 1619 | extern const char *git_log_output_encoding; |
d551a488 | 1620 | extern const char *git_mailmap_file; |
08610900 | 1621 | extern const char *git_mailmap_blob; |
4e72dcec | 1622 | |
06f59e9f TT |
1623 | /* IO helper functions */ |
1624 | extern void maybe_flush_or_die(FILE *, const char *); | |
9540ce50 JK |
1625 | __attribute__((format (printf, 2, 3))) |
1626 | extern void fprintf_or_die(FILE *, const char *fmt, ...); | |
00b7cbfc JH |
1627 | |
1628 | #define COPY_READ_ERROR (-2) | |
1629 | #define COPY_WRITE_ERROR (-3) | |
f3123c4a | 1630 | extern int copy_fd(int ifd, int ofd); |
1468bd47 | 1631 | extern int copy_file(const char *dst, const char *src, int mode); |
f7835a25 | 1632 | extern int copy_file_with_time(const char *dst, const char *src, int mode); |
00b7cbfc | 1633 | |
7230e6d0 | 1634 | extern void write_or_die(int fd, const void *buf, size_t count); |
4c81b03e | 1635 | extern void fsync_or_die(int fd, const char *); |
ad897215 | 1636 | |
2b7ca830 JM |
1637 | extern ssize_t read_in_full(int fd, void *buf, size_t count); |
1638 | extern ssize_t write_in_full(int fd, const void *buf, size_t count); | |
426ddeea YM |
1639 | extern ssize_t pread_in_full(int fd, void *buf, size_t count, off_t offset); |
1640 | ||
2b7ca830 JM |
1641 | static inline ssize_t write_str_in_full(int fd, const char *str) |
1642 | { | |
1643 | return write_in_full(fd, str, strlen(str)); | |
1644 | } | |
12d6ce1d | 1645 | |
52563d7e JK |
1646 | /** |
1647 | * Open (and truncate) the file at path, write the contents of buf to it, | |
1648 | * and close it. Dies if any errors are encountered. | |
1649 | */ | |
1650 | extern void write_file_buf(const char *path, const char *buf, size_t len); | |
1651 | ||
e04d08a4 JK |
1652 | /** |
1653 | * Like write_file_buf(), but format the contents into a buffer first. | |
1654 | * Additionally, write_file() will append a newline if one is not already | |
1655 | * present, making it convenient to write text files: | |
1656 | * | |
1657 | * write_file(path, "counter: %d", ctr); | |
1658 | */ | |
1659 | __attribute__((format (printf, 2, 3))) | |
ef22318c | 1660 | extern void write_file(const char *path, const char *fmt, ...); |
2b7ca830 | 1661 | |
f67b45f8 LT |
1662 | /* pager.c */ |
1663 | extern void setup_pager(void); | |
6e9af863 | 1664 | extern int pager_in_use(void); |
aa086eb8 | 1665 | extern int pager_use_color; |
ad6c3739 | 1666 | extern int term_columns(void); |
d306f3d3 | 1667 | extern int decimal_width(uintmax_t); |
4914c962 | 1668 | extern int check_pager_config(const char *cmd); |
3e3a4a41 | 1669 | extern void prepare_pager_args(struct child_process *, const char *pager); |
f67b45f8 | 1670 | |
ee9601e6 | 1671 | extern const char *editor_program; |
d3e7da89 | 1672 | extern const char *askpass_program; |
dfb068be | 1673 | extern const char *excludes_file; |
4d87b9c5 | 1674 | |
051308f6 | 1675 | /* base85 */ |
f9815772 JM |
1676 | int decode_85(char *dst, const char *line, int linelen); |
1677 | void encode_85(char *buf, const unsigned char *data, int bytes); | |
051308f6 | 1678 | |
5991a55c | 1679 | /* pkt-line.c */ |
bbc30f99 | 1680 | void packet_trace_identity(const char *prog); |
6ce4e61f | 1681 | |
b6ec1d61 | 1682 | /* add */ |
7ae02a30 AR |
1683 | /* |
1684 | * return 0 if success, 1 - if addition of a file failed and | |
1685 | * ADD_FILES_IGNORE_ERRORS was specified in flags | |
1686 | */ | |
610d55af | 1687 | int add_files_to_cache(const char *prefix, const struct pathspec *pathspec, int flags); |
b6ec1d61 | 1688 | |
aecbf914 JH |
1689 | /* diff.c */ |
1690 | extern int diff_auto_refresh_index; | |
1691 | ||
68faf689 | 1692 | /* match-trees.c */ |
82db3d44 | 1693 | void shift_tree(const struct object_id *, const struct object_id *, struct object_id *, int); |
1694 | void shift_tree_by(const struct object_id *, const struct object_id *, struct object_id *, const char *); | |
68faf689 | 1695 | |
a9cc857a JH |
1696 | /* |
1697 | * whitespace rules. | |
1698 | * used by both diff and apply | |
f4b05a49 | 1699 | * last two digits are tab width |
a9cc857a | 1700 | */ |
f4b05a49 JS |
1701 | #define WS_BLANK_AT_EOL 0100 |
1702 | #define WS_SPACE_BEFORE_TAB 0200 | |
1703 | #define WS_INDENT_WITH_NON_TAB 0400 | |
1704 | #define WS_CR_AT_EOL 01000 | |
1705 | #define WS_BLANK_AT_EOF 02000 | |
1706 | #define WS_TAB_IN_INDENT 04000 | |
aeb84b05 | 1707 | #define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF) |
f4b05a49 JS |
1708 | #define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|8) |
1709 | #define WS_TAB_WIDTH_MASK 077 | |
091f8e28 SB |
1710 | /* All WS_* -- when extended, adapt diff.c emit_symbol */ |
1711 | #define WS_RULE_MASK 07777 | |
cf1b7869 | 1712 | extern unsigned whitespace_rule_cfg; |
26d024ec | 1713 | extern unsigned whitespace_rule(struct index_state *, const char *); |
cf1b7869 | 1714 | extern unsigned parse_whitespace_rule(const char *); |
8f8841e9 JH |
1715 | extern unsigned ws_check(const char *line, int len, unsigned ws_rule); |
1716 | 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 | 1717 | extern char *whitespace_error_string(unsigned ws); |
d511bd33 | 1718 | extern void ws_fix_copy(struct strbuf *, const char *, int, unsigned, int *); |
877f23cc | 1719 | extern int ws_blank_line(const char *line, int len, unsigned ws_rule); |
f4b05a49 | 1720 | #define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK) |
a9cc857a | 1721 | |
ee425e46 | 1722 | /* ls-files */ |
312c984a BW |
1723 | void overlay_tree_on_index(struct index_state *istate, |
1724 | const char *tree_name, const char *prefix); | |
ee425e46 | 1725 | |
46c3cd44 | 1726 | /* setup.c */ |
e37c1329 | 1727 | struct startup_info { |
a60645f9 | 1728 | int have_repository; |
f07d6a1a | 1729 | const char *prefix; |
e37c1329 NTND |
1730 | }; |
1731 | extern struct startup_info *startup_info; | |
1732 | ||
db699a8a NTND |
1733 | /* merge.c */ |
1734 | struct commit_list; | |
7e196c3a NTND |
1735 | int try_merge_command(struct repository *r, |
1736 | const char *strategy, size_t xopts_nr, | |
db699a8a NTND |
1737 | const char **xopts, struct commit_list *common, |
1738 | const char *head_arg, struct commit_list *remotes); | |
7e196c3a NTND |
1739 | int checkout_fast_forward(struct repository *r, |
1740 | const struct object_id *from, | |
f06e90da | 1741 | const struct object_id *to, |
db699a8a NTND |
1742 | int overwrite_ignore); |
1743 | ||
cac42b26 | 1744 | |
38f865c2 JK |
1745 | int sane_execvp(const char *file, char *const argv[]); |
1746 | ||
38612532 MH |
1747 | /* |
1748 | * A struct to encapsulate the concept of whether a file has changed | |
1749 | * since we last checked it. This uses criteria similar to those used | |
1750 | * for the index. | |
1751 | */ | |
1752 | struct stat_validity { | |
1753 | struct stat_data *sd; | |
1754 | }; | |
1755 | ||
1756 | void stat_validity_clear(struct stat_validity *sv); | |
1757 | ||
1758 | /* | |
1759 | * Returns 1 if the path is a regular file (or a symlink to a regular | |
1760 | * file) and matches the saved stat_validity, 0 otherwise. A missing | |
1761 | * or inaccessible file is considered a match if the struct was just | |
1762 | * initialized, or if the previous update found an inaccessible file. | |
1763 | */ | |
1764 | int stat_validity_check(struct stat_validity *sv, const char *path); | |
1765 | ||
1766 | /* | |
1767 | * Update the stat_validity from a file opened at descriptor fd. If | |
1768 | * the file is missing, inaccessible, or not a regular file, then | |
1769 | * future calls to stat_validity_check will match iff one of those | |
1770 | * conditions continues to be true. | |
1771 | */ | |
1772 | void stat_validity_update(struct stat_validity *sv, int fd); | |
1773 | ||
9ef176b5 | 1774 | int versioncmp(const char *s1, const char *s2); |
2024d317 | 1775 | void sleep_millisec(int millisec); |
9ef176b5 | 1776 | |
eb33876c DT |
1777 | /* |
1778 | * Create a directory and (if share is nonzero) adjust its permissions | |
1779 | * according to the shared_repository setting. Only use this for | |
1780 | * directories under $GIT_DIR. Don't use it for working tree | |
1781 | * directories. | |
1782 | */ | |
1783 | void safe_create_dir(const char *dir, int share); | |
1784 | ||
a2cd709d AR |
1785 | /* |
1786 | * Should we print an ellipsis after an abbreviated SHA-1 value | |
1787 | * when doing diff-raw output or indicating a detached HEAD? | |
1788 | */ | |
1789 | extern int print_sha1_ellipsis(void); | |
1790 | ||
e83c5163 | 1791 | #endif /* CACHE_H */ |