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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" |
e83c5163 | 6 | |
cef661fc | 7 | #include SHA1_HEADER |
e83c5163 LT |
8 | #include <zlib.h> |
9 | ||
609a2289 | 10 | #if defined(NO_DEFLATE_BOUND) || ZLIB_VERNUM < 0x1200 |
9da3acfb ET |
11 | #define deflateBound(c,s) ((s) + (((s) + 7) >> 3) + (((s) + 63) >> 6) + 11) |
12 | #endif | |
13 | ||
962554c6 | 14 | #if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT) |
b6829693 ET |
15 | #define DTYPE(de) ((de)->d_type) |
16 | #else | |
0bdd79af JH |
17 | #undef DT_UNKNOWN |
18 | #undef DT_DIR | |
19 | #undef DT_REG | |
20 | #undef DT_LNK | |
b6829693 ET |
21 | #define DT_UNKNOWN 0 |
22 | #define DT_DIR 1 | |
23 | #define DT_REG 2 | |
a15c1c60 | 24 | #define DT_LNK 3 |
b6829693 ET |
25 | #define DTYPE(de) DT_UNKNOWN |
26 | #endif | |
27 | ||
40689ae1 MK |
28 | /* unknown mode (impossible combination S_IFIFO|S_IFCHR) */ |
29 | #define S_IFINVALID 0030000 | |
30 | ||
9eec4795 LT |
31 | /* |
32 | * A "directory link" is a link to another git directory. | |
33 | * | |
34 | * The value 0160000 is not normally a valid mode, and | |
35 | * also just happens to be S_IFDIR + S_IFLNK | |
36 | * | |
37 | * NOTE! We *really* shouldn't depend on the S_IFxxx macros | |
38 | * always having the same values everywhere. We should use | |
39 | * our internal git values for these things, and then we can | |
40 | * translate that to the OS-specific value. It just so | |
41 | * happens that everybody shares the same bit representation | |
42 | * in the UNIX world (and apparently wider too..) | |
43 | */ | |
302b9282 MW |
44 | #define S_IFGITLINK 0160000 |
45 | #define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK) | |
9eec4795 | 46 | |
2386d658 LT |
47 | /* |
48 | * Intensive research over the course of many years has shown that | |
49 | * port 9418 is totally unused by anything else. Or | |
50 | * | |
51 | * Your search - "port 9418" - did not match any documents. | |
52 | * | |
53 | * as www.google.com puts it. | |
ba8a4970 LT |
54 | * |
55 | * This port has been properly assigned for git use by IANA: | |
56 | * git (Assigned-9418) [I06-050728-0001]. | |
57 | * | |
58 | * git 9418/tcp git pack transfer service | |
59 | * git 9418/udp git pack transfer service | |
60 | * | |
61 | * with Linus Torvalds <torvalds@osdl.org> as the point of | |
62 | * contact. September 2005. | |
63 | * | |
64 | * See http://www.iana.org/assignments/port-numbers | |
2386d658 LT |
65 | */ |
66 | #define DEFAULT_GIT_PORT 9418 | |
67 | ||
e83c5163 LT |
68 | /* |
69 | * Basic data structures for the directory cache | |
e83c5163 LT |
70 | */ |
71 | ||
72 | #define CACHE_SIGNATURE 0x44495243 /* "DIRC" */ | |
73 | struct cache_header { | |
ccc4feb5 LT |
74 | unsigned int hdr_signature; |
75 | unsigned int hdr_version; | |
76 | unsigned int hdr_entries; | |
e83c5163 LT |
77 | }; |
78 | ||
79 | /* | |
80 | * The "cache_time" is just the low 32 bits of the | |
81 | * time. It doesn't matter if it overflows - we only | |
82 | * check it for equality in the 32 bits we save. | |
83 | */ | |
84 | struct cache_time { | |
85 | unsigned int sec; | |
86 | unsigned int nsec; | |
87 | }; | |
88 | ||
89 | /* | |
90 | * dev/ino/uid/gid/size are also just tracked to the low 32 bits | |
91 | * Again - this is just a (very strong in practice) heuristic that | |
92 | * the inode hasn't changed. | |
ccc4feb5 LT |
93 | * |
94 | * We save the fields in big-endian order to allow using the | |
95 | * index file over NFS transparently. | |
e83c5163 LT |
96 | */ |
97 | struct cache_entry { | |
ccc4feb5 LT |
98 | struct cache_time ce_ctime; |
99 | struct cache_time ce_mtime; | |
100 | unsigned int ce_dev; | |
101 | unsigned int ce_ino; | |
102 | unsigned int ce_mode; | |
103 | unsigned int ce_uid; | |
104 | unsigned int ce_gid; | |
105 | unsigned int ce_size; | |
e83c5163 | 106 | unsigned char sha1[20]; |
f5cabd13 | 107 | unsigned short ce_flags; |
8f1d2e6f | 108 | char name[FLEX_ARRAY]; /* more */ |
e83c5163 LT |
109 | }; |
110 | ||
95fd5bf8 LT |
111 | #define CE_NAMEMASK (0x0fff) |
112 | #define CE_STAGEMASK (0x3000) | |
220a0b52 | 113 | #define CE_UPDATE (0x4000) |
5f73076c | 114 | #define CE_VALID (0x8000) |
aee46198 | 115 | #define CE_STAGESHIFT 12 |
95fd5bf8 | 116 | |
aee46198 JH |
117 | #define create_ce_flags(len, stage) htons((len) | ((stage) << CE_STAGESHIFT)) |
118 | #define ce_namelen(ce) (CE_NAMEMASK & ntohs((ce)->ce_flags)) | |
119 | #define ce_size(ce) cache_entry_size(ce_namelen(ce)) | |
120 | #define ce_stage(ce) ((CE_STAGEMASK & ntohs((ce)->ce_flags)) >> CE_STAGESHIFT) | |
121 | ||
e4479470 | 122 | #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644) |
8ae0a8c5 KS |
123 | static inline unsigned int create_ce_mode(unsigned int mode) |
124 | { | |
8ae0a8c5 KS |
125 | if (S_ISLNK(mode)) |
126 | return htonl(S_IFLNK); | |
302b9282 MW |
127 | if (S_ISDIR(mode) || S_ISGITLINK(mode)) |
128 | return htonl(S_IFGITLINK); | |
db823d4a | 129 | return htonl(S_IFREG | ce_permissions(mode)); |
8ae0a8c5 | 130 | } |
185c975f JH |
131 | static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned int mode) |
132 | { | |
78a8d641 JS |
133 | extern int trust_executable_bit, has_symlinks; |
134 | if (!has_symlinks && S_ISREG(mode) && | |
135 | ce && S_ISLNK(ntohl(ce->ce_mode))) | |
136 | return ce->ce_mode; | |
185c975f JH |
137 | if (!trust_executable_bit && S_ISREG(mode)) { |
138 | if (ce && S_ISREG(ntohl(ce->ce_mode))) | |
139 | return ce->ce_mode; | |
140 | return create_ce_mode(0666); | |
141 | } | |
142 | return create_ce_mode(mode); | |
143 | } | |
1b0c7174 JH |
144 | #define canon_mode(mode) \ |
145 | (S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \ | |
302b9282 | 146 | S_ISLNK(mode) ? S_IFLNK : S_ISDIR(mode) ? S_IFDIR : S_IFGITLINK) |
e4479470 | 147 | |
aee46198 | 148 | #define cache_entry_size(len) ((offsetof(struct cache_entry,name) + (len) + 8) & ~7) |
f5cabd13 | 149 | |
228e94f9 JH |
150 | struct index_state { |
151 | struct cache_entry **cache; | |
152 | unsigned int cache_nr, cache_alloc, cache_changed; | |
153 | struct cache_tree *cache_tree; | |
154 | time_t timestamp; | |
155 | void *mmap; | |
156 | size_t mmap_size; | |
157 | }; | |
158 | ||
159 | extern struct index_state the_index; | |
160 | ||
4aab5b46 | 161 | #ifndef NO_THE_INDEX_COMPATIBILITY_MACROS |
228e94f9 JH |
162 | #define active_cache (the_index.cache) |
163 | #define active_nr (the_index.cache_nr) | |
164 | #define active_alloc (the_index.cache_alloc) | |
165 | #define active_cache_changed (the_index.cache_changed) | |
166 | #define active_cache_tree (the_index.cache_tree) | |
e83c5163 | 167 | |
4aab5b46 JH |
168 | #define read_cache() read_index(&the_index) |
169 | #define read_cache_from(path) read_index_from(&the_index, (path)) | |
170 | #define write_cache(newfd, cache, entries) write_index(&the_index, (newfd)) | |
171 | #define discard_cache() discard_index(&the_index) | |
172 | #define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen)) | |
173 | #define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option)) | |
174 | #define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos)) | |
175 | #define remove_file_from_cache(path) remove_file_from_index(&the_index, (path)) | |
176 | #define add_file_to_cache(path, verbose) add_file_to_index(&the_index, (path), (verbose)) | |
d616813d | 177 | #define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL) |
4bd5b7da JH |
178 | #define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options)) |
179 | #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options)) | |
4aab5b46 | 180 | #endif |
e83c5163 | 181 | |
edaec3fb JH |
182 | enum object_type { |
183 | OBJ_BAD = -1, | |
184 | OBJ_NONE = 0, | |
185 | OBJ_COMMIT = 1, | |
186 | OBJ_TREE = 2, | |
187 | OBJ_BLOB = 3, | |
188 | OBJ_TAG = 4, | |
189 | /* 5 for future expansion */ | |
190 | OBJ_OFS_DELTA = 6, | |
191 | OBJ_REF_DELTA = 7, | |
192 | OBJ_MAX, | |
193 | }; | |
194 | ||
8ac069ac | 195 | #define GIT_DIR_ENVIRONMENT "GIT_DIR" |
892c41b9 | 196 | #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE" |
8ac069ac | 197 | #define DEFAULT_GIT_DIR_ENVIRONMENT ".git" |
d19938ab | 198 | #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY" |
bb233d69 | 199 | #define INDEX_ENVIRONMENT "GIT_INDEX_FILE" |
5da5c8f4 | 200 | #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE" |
d4ebc36c JH |
201 | #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR" |
202 | #define CONFIG_ENVIRONMENT "GIT_CONFIG" | |
203 | #define CONFIG_LOCAL_ENVIRONMENT "GIT_CONFIG_LOCAL" | |
204 | #define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH" | |
d0bfd026 JH |
205 | #define GITATTRIBUTES_FILE ".gitattributes" |
206 | #define INFOATTRIBUTES_FILE "info/attributes" | |
f48fd688 | 207 | #define ATTRIBUTE_MACRO_PREFIX "[attr]" |
bb233d69 | 208 | |
7d1864ce JH |
209 | extern int is_bare_repository_cfg; |
210 | extern int is_bare_repository(void); | |
68025633 | 211 | extern int is_inside_git_dir(void); |
e90fdc39 | 212 | extern char *git_work_tree_cfg; |
892c41b9 | 213 | extern int is_inside_work_tree(void); |
c5fba16c | 214 | extern const char *get_git_dir(void); |
8ac069ac | 215 | extern char *get_object_directory(void); |
95fc7512 | 216 | extern char *get_refs_directory(void); |
8ac069ac | 217 | extern char *get_index_file(void); |
5da5c8f4 | 218 | extern char *get_graft_file(void); |
d7ac12b2 | 219 | extern int set_git_dir(const char *path); |
e90fdc39 | 220 | extern const char *get_git_work_tree(void); |
8ac069ac JH |
221 | |
222 | #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES" | |
bb233d69 | 223 | |
6b5ee137 | 224 | extern const char **get_pathspec(const char *prefix, const char **pathspec); |
59f0f2f3 | 225 | extern void setup_work_tree(void); |
4ca06608 | 226 | extern const char *setup_git_directory_gently(int *); |
d288a700 | 227 | extern const char *setup_git_directory(void); |
6b5ee137 | 228 | extern const char *prefix_path(const char *prefix, int len, const char *path); |
4ca06608 | 229 | extern const char *prefix_filename(const char *prefix, int len, const char *path); |
e23d0b4a | 230 | extern void verify_filename(const char *prefix, const char *name); |
ea92f41f | 231 | extern void verify_non_filename(const char *prefix, const char *name); |
d288a700 | 232 | |
e83c5163 LT |
233 | #define alloc_nr(x) (((x)+16)*3/2) |
234 | ||
6815e569 JK |
235 | /* |
236 | * Realloc the buffer pointed at by variable 'x' so that it can hold | |
237 | * at least 'nr' entries; the number of entries currently allocated | |
238 | * is 'alloc', using the standard growing factor alloc_nr() macro. | |
239 | * | |
240 | * DO NOT USE any expression with side-effect for 'x' or 'alloc'. | |
241 | */ | |
242 | #define ALLOC_GROW(x, nr, alloc) \ | |
243 | do { \ | |
c927e6c6 | 244 | if ((nr) > alloc) { \ |
4234a761 JH |
245 | if (alloc_nr(alloc) < (nr)) \ |
246 | alloc = (nr); \ | |
247 | else \ | |
248 | alloc = alloc_nr(alloc); \ | |
6815e569 JK |
249 | x = xrealloc((x), alloc * sizeof(*(x))); \ |
250 | } \ | |
251 | } while(0) | |
252 | ||
734aab75 | 253 | /* Initialize and use the cache information */ |
4aab5b46 JH |
254 | extern int read_index(struct index_state *); |
255 | extern int read_index_from(struct index_state *, const char *path); | |
256 | extern int write_index(struct index_state *, int newfd); | |
257 | extern int discard_index(struct index_state *); | |
8dcf39c4 | 258 | extern int verify_path(const char *path); |
4aab5b46 | 259 | extern int index_name_pos(struct index_state *, const char *name, int namelen); |
192268c1 JH |
260 | #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */ |
261 | #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */ | |
b155725d | 262 | #define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */ |
af3785dc | 263 | #define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */ |
4aab5b46 | 264 | extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option); |
8fd2cb40 | 265 | extern struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really); |
4aab5b46 JH |
266 | extern int remove_index_entry_at(struct index_state *, int pos); |
267 | extern int remove_file_from_index(struct index_state *, const char *path); | |
268 | extern int add_file_to_index(struct index_state *, const char *path, int verbose); | |
6640f881 | 269 | extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, int refresh); |
dbbce55b | 270 | extern int ce_same_name(struct cache_entry *a, struct cache_entry *b); |
4bd5b7da JH |
271 | |
272 | /* do stat comparison even if CE_VALID is true */ | |
273 | #define CE_MATCH_IGNORE_VALID 01 | |
274 | /* do not check the contents but report dirty on racily-clean entries */ | |
275 | #define CE_MATCH_RACY_IS_DIRTY 02 | |
276 | extern int ie_match_stat(struct index_state *, struct cache_entry *, struct stat *, unsigned int); | |
277 | extern int ie_modified(struct index_state *, struct cache_entry *, struct stat *, unsigned int); | |
278 | ||
c0fd1f51 | 279 | extern int ce_path_match(const struct cache_entry *ce, const char **pathspec); |
53bca91a | 280 | extern int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object, enum object_type type, const char *path); |
024510c8 | 281 | extern int index_pipe(unsigned char *sha1, int fd, const char *type, int write_object); |
ec1fcc16 | 282 | extern int index_path(unsigned char *sha1, const char *path, struct stat *st, int write_object); |
415e96c8 JH |
283 | extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st); |
284 | ||
405e5b2f LT |
285 | #define REFRESH_REALLY 0x0001 /* ignore_valid */ |
286 | #define REFRESH_UNMERGED 0x0002 /* allow unmerged */ | |
287 | #define REFRESH_QUIET 0x0004 /* be quiet about it */ | |
288 | #define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */ | |
d616813d | 289 | extern int refresh_index(struct index_state *, unsigned int flags, const char **pathspec, char *seen); |
405e5b2f | 290 | |
021b6e45 JH |
291 | struct lock_file { |
292 | struct lock_file *next; | |
5e635e39 | 293 | pid_t owner; |
1084b845 | 294 | char on_list; |
021b6e45 | 295 | char filename[PATH_MAX]; |
415e96c8 | 296 | }; |
40aaae88 | 297 | extern int hold_lock_file_for_update(struct lock_file *, const char *path, int); |
021b6e45 | 298 | extern int commit_lock_file(struct lock_file *); |
30ca07a2 JH |
299 | |
300 | extern int hold_locked_index(struct lock_file *, int); | |
301 | extern int commit_locked_index(struct lock_file *); | |
5e7f56ac | 302 | extern void set_alternate_index_output(const char *); |
30ca07a2 | 303 | |
021b6e45 | 304 | extern void rollback_lock_file(struct lock_file *); |
1401f46b | 305 | extern int delete_ref(const char *, const unsigned char *sha1); |
734aab75 | 306 | |
2ae1c53b | 307 | /* Environment bits from configuration mechanism */ |
17712991 | 308 | extern int trust_executable_bit; |
9378c161 | 309 | extern int quote_path_fully; |
78a8d641 | 310 | extern int has_symlinks; |
5f73076c | 311 | extern int assume_unchanged; |
9f0bb90d | 312 | extern int prefer_symlink_refs; |
6de08ae6 | 313 | extern int log_all_ref_updates; |
2f8acdb3 | 314 | extern int warn_ambiguous_refs; |
457f06d6 | 315 | extern int shared_repository; |
2ae1c53b | 316 | extern const char *apply_default_whitespace; |
12f6c308 | 317 | extern int zlib_compression_level; |
960ccca6 DH |
318 | extern int core_compression_level; |
319 | extern int core_compression_seen; | |
60bb8b14 | 320 | extern size_t packed_git_window_size; |
77ccc5bb | 321 | extern size_t packed_git_limit; |
18bdec11 | 322 | extern size_t delta_base_cache_limit; |
6c510bee | 323 | extern int auto_crlf; |
17712991 | 324 | |
ab9cb76f JH |
325 | #define GIT_REPO_VERSION 0 |
326 | extern int repository_format_version; | |
327 | extern int check_repository_format(void); | |
328 | ||
734aab75 LT |
329 | #define MTIME_CHANGED 0x0001 |
330 | #define CTIME_CHANGED 0x0002 | |
331 | #define OWNER_CHANGED 0x0004 | |
332 | #define MODE_CHANGED 0x0008 | |
333 | #define INODE_CHANGED 0x0010 | |
334 | #define DATA_CHANGED 0x0020 | |
8ae0a8c5 | 335 | #define TYPE_CHANGED 0x0040 |
e83c5163 LT |
336 | |
337 | /* Return a statically allocated filename matching the sha1 signature */ | |
4ec99bf0 TS |
338 | extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2))); |
339 | extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2))); | |
73134b6d | 340 | extern char *sha1_file_name(const unsigned char *sha1); |
bf592c50 DB |
341 | extern char *sha1_pack_name(const unsigned char *sha1); |
342 | extern char *sha1_pack_index_name(const unsigned char *sha1); | |
013f276e | 343 | extern const char *find_unique_abbrev(const unsigned char *sha1, int); |
88cd621d | 344 | extern const unsigned char null_sha1[20]; |
0bef57ee DR |
345 | static inline int is_null_sha1(const unsigned char *sha1) |
346 | { | |
347 | return !memcmp(sha1, null_sha1, 20); | |
348 | } | |
a89fccd2 DR |
349 | static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2) |
350 | { | |
351 | return memcmp(sha1, sha2, 20); | |
352 | } | |
e702496e SP |
353 | static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src) |
354 | { | |
355 | memcpy(sha_dst, sha_src, 20); | |
356 | } | |
a8e0d16d JH |
357 | static inline void hashclr(unsigned char *hash) |
358 | { | |
359 | memset(hash, 0, 20); | |
360 | } | |
e83c5163 | 361 | |
f2db68ed HE |
362 | int git_mkstemp(char *path, size_t n, const char *template); |
363 | ||
94df2506 JH |
364 | enum sharedrepo { |
365 | PERM_UMASK = 0, | |
366 | PERM_GROUP, | |
367 | PERM_EVERYBODY | |
368 | }; | |
369 | int git_config_perm(const char *var, const char *value); | |
457f06d6 | 370 | int adjust_shared_perm(const char *path); |
b2cb9425 | 371 | int safe_create_leading_directories(char *path); |
bd22c904 | 372 | char *enter_repo(char *path, int strict); |
e5392c51 JS |
373 | static inline int is_absolute_path(const char *path) |
374 | { | |
375 | return path[0] == '/'; | |
376 | } | |
377 | const char *make_absolute_path(const char *path); | |
b2cb9425 | 378 | |
e83c5163 | 379 | /* Read and unpack a sha1 file into memory, write memory to a sha1 file */ |
21666f1a | 380 | extern int sha1_object_info(const unsigned char *, unsigned long *); |
21666f1a | 381 | extern void * read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size); |
ce9fbf16 | 382 | extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1); |
bf0f910d | 383 | extern int write_sha1_file(void *buf, unsigned long len, const char *type, unsigned char *return_sha1); |
21666f1a | 384 | extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *); |
8237b185 | 385 | |
5d6ccf5c | 386 | extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type); |
e83c5163 | 387 | |
70b9829e DB |
388 | extern int write_sha1_from_fd(const unsigned char *sha1, int fd, char *buffer, |
389 | size_t bufsize, size_t *bufposn); | |
a5eda52b | 390 | extern int write_sha1_to_fd(int fd, const unsigned char *sha1); |
839837b9 | 391 | extern int move_temp_to_file(const char *tmpfile, const char *filename); |
8237b185 | 392 | |
106d710b | 393 | extern int has_sha1_pack(const unsigned char *sha1, const char **ignore); |
8237b185 DB |
394 | extern int has_sha1_file(const unsigned char *sha1); |
395 | ||
bf592c50 DB |
396 | extern int has_pack_file(const unsigned char *sha1); |
397 | extern int has_pack_index(const unsigned char *sha1); | |
398 | ||
192a6be2 LT |
399 | extern const signed char hexval_table[256]; |
400 | static inline unsigned int hexval(unsigned char c) | |
e49521b5 JH |
401 | { |
402 | return hexval_table[c]; | |
403 | } | |
404 | ||
e83c5163 | 405 | /* Convert to/from hex/sha1 representation */ |
46a6c262 JH |
406 | #define MINIMUM_ABBREV 4 |
407 | #define DEFAULT_ABBREV 7 | |
408 | ||
3c249c95 | 409 | extern int get_sha1(const char *str, unsigned char *sha1); |
a0cd87a5 | 410 | extern int get_sha1_with_mode(const char *str, unsigned char *sha1, unsigned *mode); |
197ee8c9 LT |
411 | extern int get_sha1_hex(const char *hex, unsigned char *sha1); |
412 | extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */ | |
ca8db142 | 413 | extern int read_ref(const char *filename, unsigned char *sha1); |
8da19775 | 414 | extern const char *resolve_ref(const char *path, unsigned char *sha1, int, int *); |
e86eb666 | 415 | extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref); |
eb3a4822 | 416 | extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref); |
e86eb666 | 417 | |
8b5157e4 | 418 | extern int create_symref(const char *ref, const char *refs_heads_master, const char *logmsg); |
c847f537 | 419 | extern int validate_headref(const char *ref); |
e83c5163 | 420 | |
958ba6c9 | 421 | extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2); |
79517a06 | 422 | extern int cache_name_compare(const char *name1, int len1, const char *name2, int len2); |
e83c5163 | 423 | |
40469ee9 | 424 | extern void *read_object_with_reference(const unsigned char *sha1, |
bf0f910d | 425 | const char *required_type, |
40469ee9 JH |
426 | unsigned long *size, |
427 | unsigned char *sha1_ret); | |
f4913f91 | 428 | |
73013afd JH |
429 | enum date_mode { |
430 | DATE_NORMAL = 0, | |
431 | DATE_RELATIVE, | |
432 | DATE_SHORT, | |
433 | DATE_LOCAL, | |
434 | DATE_ISO8601, | |
435 | DATE_RFC2822 | |
436 | }; | |
437 | ||
f8493ec0 | 438 | const char *show_date(unsigned long time, int timezone, enum date_mode mode); |
2a39064c | 439 | int parse_date(const char *date, char *buf, int bufsize); |
ecee9d9e | 440 | void datestamp(char *buf, int bufsize); |
3c07b1d1 | 441 | unsigned long approxidate(const char *); |
856665f8 | 442 | enum date_mode parse_date_format(const char *format); |
ecee9d9e | 443 | |
749be728 JH |
444 | extern const char *git_author_info(int); |
445 | extern const char *git_committer_info(int); | |
798123af | 446 | extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int); |
6aa33f40 | 447 | |
12dccc16 LT |
448 | struct checkout { |
449 | const char *base_dir; | |
450 | int base_dir_len; | |
451 | unsigned force:1, | |
452 | quiet:1, | |
453 | not_new:1, | |
454 | refresh_cache:1; | |
455 | }; | |
456 | ||
efbc5831 | 457 | extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath); |
f859c846 | 458 | extern int has_symlink_leading_path(const char *name, char *last_symlink); |
12dccc16 | 459 | |
9a217f2a | 460 | extern struct alternate_object_database { |
d5a63b99 | 461 | struct alternate_object_database *next; |
9a217f2a | 462 | char *name; |
8f1d2e6f | 463 | char base[FLEX_ARRAY]; /* more */ |
d5a63b99 | 464 | } *alt_odb_list; |
9a217f2a JH |
465 | extern void prepare_alt_odb(void); |
466 | ||
c41ee586 SP |
467 | struct pack_window { |
468 | struct pack_window *next; | |
469 | unsigned char *base; | |
470 | off_t offset; | |
471 | size_t len; | |
472 | unsigned int last_used; | |
473 | unsigned int inuse_cnt; | |
474 | }; | |
475 | ||
9a217f2a JH |
476 | extern struct packed_git { |
477 | struct packed_git *next; | |
c41ee586 | 478 | struct pack_window *windows; |
2dc3a234 | 479 | off_t pack_size; |
57059091 NP |
480 | const void *index_data; |
481 | size_t index_size; | |
482 | uint32_t num_objects; | |
42873078 | 483 | int index_version; |
57059091 | 484 | time_t mtime; |
9bc879c1 | 485 | int pack_fd; |
9d835df2 | 486 | int pack_local; |
bf592c50 | 487 | unsigned char sha1[20]; |
8f1d2e6f JH |
488 | /* something like ".git/objects/pack/xxxxx.pack" */ |
489 | char pack_name[FLEX_ARRAY]; /* more */ | |
9a217f2a | 490 | } *packed_git; |
f3bf9224 JH |
491 | |
492 | struct pack_entry { | |
c4001d92 | 493 | off_t offset; |
f3bf9224 JH |
494 | unsigned char sha1[20]; |
495 | struct packed_git *p; | |
496 | }; | |
497 | ||
d1c133f5 LT |
498 | struct ref { |
499 | struct ref *next; | |
500 | unsigned char old_sha1[20]; | |
501 | unsigned char new_sha1[20]; | |
ff27adf3 | 502 | unsigned char force; |
b888d61c | 503 | unsigned char merge; |
f88395ac | 504 | struct ref *peer_ref; /* when renaming */ |
8f1d2e6f | 505 | char name[FLEX_ARRAY]; /* more */ |
d1c133f5 LT |
506 | }; |
507 | ||
2718ff09 LT |
508 | #define REF_NORMAL (1u << 0) |
509 | #define REF_HEADS (1u << 1) | |
510 | #define REF_TAGS (1u << 2) | |
511 | ||
7841ce79 | 512 | #define CONNECT_VERBOSE (1u << 0) |
98158e9c JS |
513 | extern struct child_process *git_connect(int fd[2], char *url, const char *prog, int flags); |
514 | extern int finish_connect(struct child_process *conn); | |
013e7c7f | 515 | extern int path_match(const char *path, int nr, char **match); |
41cb7488 | 516 | extern int get_ack(int fd, unsigned char *result_sha1); |
2718ff09 | 517 | extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, unsigned int flags); |
211b5f9e | 518 | extern int server_supports(const char *feature); |
f7192598 | 519 | |
bf592c50 | 520 | extern struct packed_git *parse_pack_index(unsigned char *sha1); |
2ab141a2 | 521 | extern struct packed_git *parse_pack_index_file(const unsigned char *sha1, |
42873078 | 522 | const char *idx_path); |
bf592c50 | 523 | |
9a217f2a | 524 | extern void prepare_packed_git(void); |
fc04c412 | 525 | extern void reprepare_packed_git(void); |
bf592c50 DB |
526 | extern void install_packed_git(struct packed_git *pack); |
527 | ||
a6080a0a | 528 | extern struct packed_git *find_sha1_pack(const unsigned char *sha1, |
bf592c50 DB |
529 | struct packed_git *packs); |
530 | ||
276bc2ca | 531 | extern void pack_report(void); |
d079837e | 532 | extern int open_pack_index(struct packed_git *); |
c4001d92 | 533 | extern unsigned char* use_pack(struct packed_git *, struct pack_window **, off_t, unsigned int *); |
03e79c88 | 534 | extern void unuse_pack(struct pack_window **); |
42873078 | 535 | extern struct packed_git *add_packed_git(const char *, int, int); |
d079837e | 536 | extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t); |
c4001d92 SP |
537 | extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *); |
538 | extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *); | |
72518e9c | 539 | extern unsigned long unpack_object_header_gently(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep); |
54dab52a | 540 | extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t); |
c4001d92 | 541 | extern const char *packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *); |
000dfd3f | 542 | extern int matches_pack_name(struct packed_git *p, const char *name); |
9a217f2a | 543 | |
8f3f9b09 JH |
544 | /* Dumb servers support */ |
545 | extern int update_server_info(int); | |
546 | ||
17712991 LT |
547 | typedef int (*config_fn_t)(const char *, const char *); |
548 | extern int git_default_config(const char *, const char *); | |
4f629539 | 549 | extern int git_config_from_file(config_fn_t fn, const char *); |
17712991 | 550 | extern int git_config(config_fn_t fn); |
0b87b6e0 BD |
551 | extern int git_parse_long(const char *, long *); |
552 | extern int git_parse_ulong(const char *, unsigned long *); | |
17712991 | 553 | extern int git_config_int(const char *, const char *); |
0b87b6e0 | 554 | extern unsigned long git_config_ulong(const char *, const char *); |
17712991 | 555 | extern int git_config_bool(const char *, const char *); |
10bea152 | 556 | extern int git_config_set(const char *, const char *); |
4ddba79d | 557 | extern int git_config_set_multivar(const char *, const char *, const char *, int); |
0667fcfb | 558 | extern int git_config_rename_section(const char *, const char *); |
ab9cb76f | 559 | extern int check_repository_format_version(const char *var, const char *value); |
17712991 | 560 | |
e1b10391 LT |
561 | #define MAX_GITNAME (1000) |
562 | extern char git_default_email[MAX_GITNAME]; | |
563 | extern char git_default_name[MAX_GITNAME]; | |
564 | ||
1a8f2741 | 565 | extern const char *git_commit_encoding; |
3a55602e | 566 | extern const char *git_log_output_encoding; |
4e72dcec | 567 | |
06f59e9f TT |
568 | /* IO helper functions */ |
569 | extern void maybe_flush_or_die(FILE *, const char *); | |
f3123c4a | 570 | extern int copy_fd(int ifd, int ofd); |
93d26e4c | 571 | extern int read_in_full(int fd, void *buf, size_t count); |
e0814056 | 572 | extern int write_in_full(int fd, const void *buf, size_t count); |
7230e6d0 | 573 | extern void write_or_die(int fd, const void *buf, size_t count); |
6ce4e61f | 574 | extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg); |
e0814056 | 575 | extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg); |
ad897215 | 576 | |
f67b45f8 LT |
577 | /* pager.c */ |
578 | extern void setup_pager(void); | |
54adf370 | 579 | extern char *pager_program; |
85fb65ed | 580 | extern int pager_in_use; |
aa086eb8 | 581 | extern int pager_use_color; |
f67b45f8 | 582 | |
4d87b9c5 | 583 | extern char *editor_program; |
039bc64e | 584 | extern char *excludes_file; |
4d87b9c5 | 585 | |
051308f6 | 586 | /* base85 */ |
f9815772 JM |
587 | int decode_85(char *dst, const char *line, int linelen); |
588 | void encode_85(char *buf, const unsigned char *data, int bytes); | |
051308f6 | 589 | |
855419f7 | 590 | /* alloc.c */ |
100c5f3b LT |
591 | extern void *alloc_blob_node(void); |
592 | extern void *alloc_tree_node(void); | |
593 | extern void *alloc_commit_node(void); | |
594 | extern void *alloc_tag_node(void); | |
595 | extern void *alloc_object_node(void); | |
855419f7 LT |
596 | extern void alloc_report(void); |
597 | ||
6ce4e61f | 598 | /* trace.c */ |
6ce4e61f CC |
599 | extern void trace_printf(const char *format, ...); |
600 | extern void trace_argv_printf(const char **argv, int count, const char *format, ...); | |
601 | ||
6c510bee | 602 | /* convert.c */ |
5ecd293d PH |
603 | /* returns 1 if *dst was used */ |
604 | extern int convert_to_git(const char *path, const char *src, size_t len, struct strbuf *dst); | |
605 | extern int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst); | |
6c510bee | 606 | |
aecbf914 JH |
607 | /* diff.c */ |
608 | extern int diff_auto_refresh_index; | |
609 | ||
68faf689 JH |
610 | /* match-trees.c */ |
611 | void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int); | |
612 | ||
e83c5163 | 613 | #endif /* CACHE_H */ |