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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" |
e83c5163 | 5 | |
cef661fc | 6 | #include SHA1_HEADER |
e83c5163 LT |
7 | #include <zlib.h> |
8 | ||
9da3acfb ET |
9 | #if ZLIB_VERNUM < 0x1200 |
10 | #define deflateBound(c,s) ((s) + (((s) + 7) >> 3) + (((s) + 63) >> 6) + 11) | |
11 | #endif | |
12 | ||
962554c6 | 13 | #if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT) |
b6829693 ET |
14 | #define DTYPE(de) ((de)->d_type) |
15 | #else | |
0bdd79af JH |
16 | #undef DT_UNKNOWN |
17 | #undef DT_DIR | |
18 | #undef DT_REG | |
19 | #undef DT_LNK | |
b6829693 ET |
20 | #define DT_UNKNOWN 0 |
21 | #define DT_DIR 1 | |
22 | #define DT_REG 2 | |
a15c1c60 | 23 | #define DT_LNK 3 |
b6829693 ET |
24 | #define DTYPE(de) DT_UNKNOWN |
25 | #endif | |
26 | ||
40689ae1 MK |
27 | /* unknown mode (impossible combination S_IFIFO|S_IFCHR) */ |
28 | #define S_IFINVALID 0030000 | |
29 | ||
9eec4795 LT |
30 | /* |
31 | * A "directory link" is a link to another git directory. | |
32 | * | |
33 | * The value 0160000 is not normally a valid mode, and | |
34 | * also just happens to be S_IFDIR + S_IFLNK | |
35 | * | |
36 | * NOTE! We *really* shouldn't depend on the S_IFxxx macros | |
37 | * always having the same values everywhere. We should use | |
38 | * our internal git values for these things, and then we can | |
39 | * translate that to the OS-specific value. It just so | |
40 | * happens that everybody shares the same bit representation | |
41 | * in the UNIX world (and apparently wider too..) | |
42 | */ | |
43 | #define S_IFDIRLNK 0160000 | |
44 | #define S_ISDIRLNK(m) (((m) & S_IFMT) == S_IFDIRLNK) | |
45 | ||
2386d658 LT |
46 | /* |
47 | * Intensive research over the course of many years has shown that | |
48 | * port 9418 is totally unused by anything else. Or | |
49 | * | |
50 | * Your search - "port 9418" - did not match any documents. | |
51 | * | |
52 | * as www.google.com puts it. | |
ba8a4970 LT |
53 | * |
54 | * This port has been properly assigned for git use by IANA: | |
55 | * git (Assigned-9418) [I06-050728-0001]. | |
56 | * | |
57 | * git 9418/tcp git pack transfer service | |
58 | * git 9418/udp git pack transfer service | |
59 | * | |
60 | * with Linus Torvalds <torvalds@osdl.org> as the point of | |
61 | * contact. September 2005. | |
62 | * | |
63 | * See http://www.iana.org/assignments/port-numbers | |
2386d658 LT |
64 | */ |
65 | #define DEFAULT_GIT_PORT 9418 | |
66 | ||
e83c5163 LT |
67 | /* |
68 | * Basic data structures for the directory cache | |
e83c5163 LT |
69 | */ |
70 | ||
71 | #define CACHE_SIGNATURE 0x44495243 /* "DIRC" */ | |
72 | struct cache_header { | |
ccc4feb5 LT |
73 | unsigned int hdr_signature; |
74 | unsigned int hdr_version; | |
75 | unsigned int hdr_entries; | |
e83c5163 LT |
76 | }; |
77 | ||
78 | /* | |
79 | * The "cache_time" is just the low 32 bits of the | |
80 | * time. It doesn't matter if it overflows - we only | |
81 | * check it for equality in the 32 bits we save. | |
82 | */ | |
83 | struct cache_time { | |
84 | unsigned int sec; | |
85 | unsigned int nsec; | |
86 | }; | |
87 | ||
88 | /* | |
89 | * dev/ino/uid/gid/size are also just tracked to the low 32 bits | |
90 | * Again - this is just a (very strong in practice) heuristic that | |
91 | * the inode hasn't changed. | |
ccc4feb5 LT |
92 | * |
93 | * We save the fields in big-endian order to allow using the | |
94 | * index file over NFS transparently. | |
e83c5163 LT |
95 | */ |
96 | struct cache_entry { | |
ccc4feb5 LT |
97 | struct cache_time ce_ctime; |
98 | struct cache_time ce_mtime; | |
99 | unsigned int ce_dev; | |
100 | unsigned int ce_ino; | |
101 | unsigned int ce_mode; | |
102 | unsigned int ce_uid; | |
103 | unsigned int ce_gid; | |
104 | unsigned int ce_size; | |
e83c5163 | 105 | unsigned char sha1[20]; |
f5cabd13 | 106 | unsigned short ce_flags; |
8f1d2e6f | 107 | char name[FLEX_ARRAY]; /* more */ |
e83c5163 LT |
108 | }; |
109 | ||
95fd5bf8 LT |
110 | #define CE_NAMEMASK (0x0fff) |
111 | #define CE_STAGEMASK (0x3000) | |
220a0b52 | 112 | #define CE_UPDATE (0x4000) |
5f73076c | 113 | #define CE_VALID (0x8000) |
aee46198 | 114 | #define CE_STAGESHIFT 12 |
95fd5bf8 | 115 | |
aee46198 JH |
116 | #define create_ce_flags(len, stage) htons((len) | ((stage) << CE_STAGESHIFT)) |
117 | #define ce_namelen(ce) (CE_NAMEMASK & ntohs((ce)->ce_flags)) | |
118 | #define ce_size(ce) cache_entry_size(ce_namelen(ce)) | |
119 | #define ce_stage(ce) ((CE_STAGEMASK & ntohs((ce)->ce_flags)) >> CE_STAGESHIFT) | |
120 | ||
e4479470 | 121 | #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644) |
8ae0a8c5 KS |
122 | static inline unsigned int create_ce_mode(unsigned int mode) |
123 | { | |
8ae0a8c5 KS |
124 | if (S_ISLNK(mode)) |
125 | return htonl(S_IFLNK); | |
9eec4795 LT |
126 | if (S_ISDIR(mode) || S_ISDIRLNK(mode)) |
127 | return htonl(S_IFDIRLNK); | |
db823d4a | 128 | return htonl(S_IFREG | ce_permissions(mode)); |
8ae0a8c5 | 129 | } |
185c975f JH |
130 | static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned int mode) |
131 | { | |
78a8d641 JS |
132 | extern int trust_executable_bit, has_symlinks; |
133 | if (!has_symlinks && S_ISREG(mode) && | |
134 | ce && S_ISLNK(ntohl(ce->ce_mode))) | |
135 | return ce->ce_mode; | |
185c975f JH |
136 | if (!trust_executable_bit && S_ISREG(mode)) { |
137 | if (ce && S_ISREG(ntohl(ce->ce_mode))) | |
138 | return ce->ce_mode; | |
139 | return create_ce_mode(0666); | |
140 | } | |
141 | return create_ce_mode(mode); | |
142 | } | |
1b0c7174 JH |
143 | #define canon_mode(mode) \ |
144 | (S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \ | |
9eec4795 | 145 | S_ISLNK(mode) ? S_IFLNK : S_ISDIR(mode) ? S_IFDIR : S_IFDIRLNK) |
e4479470 | 146 | |
aee46198 | 147 | #define cache_entry_size(len) ((offsetof(struct cache_entry,name) + (len) + 8) & ~7) |
f5cabd13 | 148 | |
88355048 PB |
149 | extern struct cache_entry **active_cache; |
150 | extern unsigned int active_nr, active_alloc, active_cache_changed; | |
bad68ec9 | 151 | extern struct cache_tree *active_cache_tree; |
e83c5163 | 152 | |
edaec3fb JH |
153 | enum object_type { |
154 | OBJ_BAD = -1, | |
155 | OBJ_NONE = 0, | |
156 | OBJ_COMMIT = 1, | |
157 | OBJ_TREE = 2, | |
158 | OBJ_BLOB = 3, | |
159 | OBJ_TAG = 4, | |
160 | /* 5 for future expansion */ | |
161 | OBJ_OFS_DELTA = 6, | |
162 | OBJ_REF_DELTA = 7, | |
163 | OBJ_MAX, | |
164 | }; | |
165 | ||
8ac069ac JH |
166 | #define GIT_DIR_ENVIRONMENT "GIT_DIR" |
167 | #define DEFAULT_GIT_DIR_ENVIRONMENT ".git" | |
d19938ab | 168 | #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY" |
bb233d69 | 169 | #define INDEX_ENVIRONMENT "GIT_INDEX_FILE" |
5da5c8f4 | 170 | #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE" |
d4ebc36c JH |
171 | #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR" |
172 | #define CONFIG_ENVIRONMENT "GIT_CONFIG" | |
173 | #define CONFIG_LOCAL_ENVIRONMENT "GIT_CONFIG_LOCAL" | |
174 | #define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH" | |
d0bfd026 JH |
175 | #define GITATTRIBUTES_FILE ".gitattributes" |
176 | #define INFOATTRIBUTES_FILE "info/attributes" | |
f48fd688 | 177 | #define ATTRIBUTE_MACRO_PREFIX "[attr]" |
bb233d69 | 178 | |
7d1864ce JH |
179 | extern int is_bare_repository_cfg; |
180 | extern int is_bare_repository(void); | |
68025633 | 181 | extern int is_inside_git_dir(void); |
c5fba16c | 182 | extern const char *get_git_dir(void); |
8ac069ac | 183 | extern char *get_object_directory(void); |
95fc7512 | 184 | extern char *get_refs_directory(void); |
8ac069ac | 185 | extern char *get_index_file(void); |
5da5c8f4 | 186 | extern char *get_graft_file(void); |
8ac069ac JH |
187 | |
188 | #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES" | |
bb233d69 | 189 | |
6b5ee137 | 190 | extern const char **get_pathspec(const char *prefix, const char **pathspec); |
4ca06608 | 191 | extern const char *setup_git_directory_gently(int *); |
d288a700 | 192 | extern const char *setup_git_directory(void); |
6b5ee137 | 193 | extern const char *prefix_path(const char *prefix, int len, const char *path); |
4ca06608 | 194 | extern const char *prefix_filename(const char *prefix, int len, const char *path); |
e23d0b4a | 195 | extern void verify_filename(const char *prefix, const char *name); |
ea92f41f | 196 | extern void verify_non_filename(const char *prefix, const char *name); |
d288a700 | 197 | |
e83c5163 LT |
198 | #define alloc_nr(x) (((x)+16)*3/2) |
199 | ||
734aab75 | 200 | /* Initialize and use the cache information */ |
e83c5163 | 201 | extern int read_cache(void); |
8fd2cb40 | 202 | extern int read_cache_from(const char *path); |
197ee8c9 | 203 | extern int write_cache(int newfd, struct cache_entry **cache, int entries); |
6d297f81 | 204 | extern int discard_cache(void); |
8dcf39c4 | 205 | extern int verify_path(const char *path); |
eb38c22f | 206 | extern int cache_name_pos(const char *name, int namelen); |
192268c1 JH |
207 | #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */ |
208 | #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */ | |
b155725d | 209 | #define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */ |
192268c1 | 210 | extern int add_cache_entry(struct cache_entry *ce, int option); |
8fd2cb40 | 211 | extern struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really); |
dbbce55b | 212 | extern int remove_cache_entry_at(int pos); |
6b5ee137 | 213 | extern int remove_file_from_cache(const char *path); |
fd1c3bf0 | 214 | extern int add_file_to_cache(const char *path, int verbose); |
dbbce55b | 215 | extern int ce_same_name(struct cache_entry *a, struct cache_entry *b); |
5f73076c JH |
216 | extern int ce_match_stat(struct cache_entry *ce, struct stat *st, int); |
217 | extern int ce_modified(struct cache_entry *ce, struct stat *st, int); | |
c0fd1f51 | 218 | extern int ce_path_match(const struct cache_entry *ce, const char **pathspec); |
53bca91a | 219 | extern int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object, enum object_type type, const char *path); |
e7332f96 | 220 | extern int read_pipe(int fd, char** return_buf, unsigned long* return_size); |
024510c8 | 221 | extern int index_pipe(unsigned char *sha1, int fd, const char *type, int write_object); |
ec1fcc16 | 222 | extern int index_path(unsigned char *sha1, const char *path, struct stat *st, int write_object); |
415e96c8 JH |
223 | extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st); |
224 | ||
405e5b2f LT |
225 | #define REFRESH_REALLY 0x0001 /* ignore_valid */ |
226 | #define REFRESH_UNMERGED 0x0002 /* allow unmerged */ | |
227 | #define REFRESH_QUIET 0x0004 /* be quiet about it */ | |
228 | #define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */ | |
229 | extern int refresh_cache(unsigned int flags); | |
230 | ||
021b6e45 JH |
231 | struct lock_file { |
232 | struct lock_file *next; | |
5e635e39 | 233 | pid_t owner; |
1084b845 | 234 | char on_list; |
021b6e45 | 235 | char filename[PATH_MAX]; |
415e96c8 | 236 | }; |
40aaae88 | 237 | extern int hold_lock_file_for_update(struct lock_file *, const char *path, int); |
021b6e45 | 238 | extern int commit_lock_file(struct lock_file *); |
30ca07a2 JH |
239 | |
240 | extern int hold_locked_index(struct lock_file *, int); | |
241 | extern int commit_locked_index(struct lock_file *); | |
5e7f56ac | 242 | extern void set_alternate_index_output(const char *); |
30ca07a2 | 243 | |
021b6e45 | 244 | extern void rollback_lock_file(struct lock_file *); |
1401f46b | 245 | extern int delete_ref(const char *, const unsigned char *sha1); |
734aab75 | 246 | |
2ae1c53b | 247 | /* Environment bits from configuration mechanism */ |
93821bd9 | 248 | extern int use_legacy_headers; |
17712991 | 249 | extern int trust_executable_bit; |
78a8d641 | 250 | extern int has_symlinks; |
5f73076c | 251 | extern int assume_unchanged; |
9f0bb90d | 252 | extern int prefer_symlink_refs; |
6de08ae6 | 253 | extern int log_all_ref_updates; |
2f8acdb3 | 254 | extern int warn_ambiguous_refs; |
457f06d6 | 255 | extern int shared_repository; |
2ae1c53b | 256 | extern const char *apply_default_whitespace; |
12f6c308 | 257 | extern int zlib_compression_level; |
60bb8b14 | 258 | extern size_t packed_git_window_size; |
77ccc5bb | 259 | extern size_t packed_git_limit; |
18bdec11 | 260 | extern size_t delta_base_cache_limit; |
6c510bee | 261 | extern int auto_crlf; |
17712991 | 262 | |
ab9cb76f JH |
263 | #define GIT_REPO_VERSION 0 |
264 | extern int repository_format_version; | |
265 | extern int check_repository_format(void); | |
266 | ||
734aab75 LT |
267 | #define MTIME_CHANGED 0x0001 |
268 | #define CTIME_CHANGED 0x0002 | |
269 | #define OWNER_CHANGED 0x0004 | |
270 | #define MODE_CHANGED 0x0008 | |
271 | #define INODE_CHANGED 0x0010 | |
272 | #define DATA_CHANGED 0x0020 | |
8ae0a8c5 | 273 | #define TYPE_CHANGED 0x0040 |
e83c5163 LT |
274 | |
275 | /* Return a statically allocated filename matching the sha1 signature */ | |
4ec99bf0 TS |
276 | extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2))); |
277 | extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2))); | |
73134b6d | 278 | extern char *sha1_file_name(const unsigned char *sha1); |
bf592c50 DB |
279 | extern char *sha1_pack_name(const unsigned char *sha1); |
280 | extern char *sha1_pack_index_name(const unsigned char *sha1); | |
013f276e | 281 | extern const char *find_unique_abbrev(const unsigned char *sha1, int); |
88cd621d | 282 | extern const unsigned char null_sha1[20]; |
0bef57ee DR |
283 | static inline int is_null_sha1(const unsigned char *sha1) |
284 | { | |
285 | return !memcmp(sha1, null_sha1, 20); | |
286 | } | |
a89fccd2 DR |
287 | static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2) |
288 | { | |
289 | return memcmp(sha1, sha2, 20); | |
290 | } | |
e702496e SP |
291 | static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src) |
292 | { | |
293 | memcpy(sha_dst, sha_src, 20); | |
294 | } | |
a8e0d16d JH |
295 | static inline void hashclr(unsigned char *hash) |
296 | { | |
297 | memset(hash, 0, 20); | |
298 | } | |
e83c5163 | 299 | |
f2db68ed HE |
300 | int git_mkstemp(char *path, size_t n, const char *template); |
301 | ||
94df2506 JH |
302 | enum sharedrepo { |
303 | PERM_UMASK = 0, | |
304 | PERM_GROUP, | |
305 | PERM_EVERYBODY | |
306 | }; | |
307 | int git_config_perm(const char *var, const char *value); | |
457f06d6 | 308 | int adjust_shared_perm(const char *path); |
b2cb9425 | 309 | int safe_create_leading_directories(char *path); |
bd22c904 | 310 | char *enter_repo(char *path, int strict); |
b2cb9425 | 311 | |
e83c5163 | 312 | /* Read and unpack a sha1 file into memory, write memory to a sha1 file */ |
21666f1a | 313 | extern int sha1_object_info(const unsigned char *, unsigned long *); |
21666f1a | 314 | extern void * read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size); |
ce9fbf16 | 315 | extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1); |
bf0f910d | 316 | extern int write_sha1_file(void *buf, unsigned long len, const char *type, unsigned char *return_sha1); |
21666f1a | 317 | extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *); |
8237b185 | 318 | |
5d6ccf5c | 319 | extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type); |
e83c5163 | 320 | |
70b9829e DB |
321 | extern int write_sha1_from_fd(const unsigned char *sha1, int fd, char *buffer, |
322 | size_t bufsize, size_t *bufposn); | |
a5eda52b | 323 | extern int write_sha1_to_fd(int fd, const unsigned char *sha1); |
839837b9 | 324 | extern int move_temp_to_file(const char *tmpfile, const char *filename); |
8237b185 | 325 | |
106d710b | 326 | extern int has_sha1_pack(const unsigned char *sha1, const char **ignore); |
8237b185 | 327 | extern int has_sha1_file(const unsigned char *sha1); |
bb6b8e4f JH |
328 | extern void *map_sha1_file(const unsigned char *sha1, unsigned long *); |
329 | extern int legacy_loose_object(unsigned char *); | |
8237b185 | 330 | |
bf592c50 DB |
331 | extern int has_pack_file(const unsigned char *sha1); |
332 | extern int has_pack_index(const unsigned char *sha1); | |
333 | ||
e49521b5 JH |
334 | extern signed char hexval_table[256]; |
335 | static inline unsigned int hexval(unsigned int c) | |
336 | { | |
337 | return hexval_table[c]; | |
338 | } | |
339 | ||
e83c5163 | 340 | /* Convert to/from hex/sha1 representation */ |
46a6c262 JH |
341 | #define MINIMUM_ABBREV 4 |
342 | #define DEFAULT_ABBREV 7 | |
343 | ||
3c249c95 | 344 | extern int get_sha1(const char *str, unsigned char *sha1); |
197ee8c9 LT |
345 | extern int get_sha1_hex(const char *hex, unsigned char *sha1); |
346 | extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */ | |
ca8db142 | 347 | extern int read_ref(const char *filename, unsigned char *sha1); |
8da19775 | 348 | extern const char *resolve_ref(const char *path, unsigned char *sha1, int, int *); |
e86eb666 | 349 | extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref); |
eb3a4822 | 350 | extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref); |
e86eb666 | 351 | |
8b5157e4 | 352 | extern int create_symref(const char *ref, const char *refs_heads_master, const char *logmsg); |
c847f537 | 353 | extern int validate_headref(const char *ref); |
e83c5163 | 354 | |
958ba6c9 | 355 | extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2); |
79517a06 | 356 | extern int cache_name_compare(const char *name1, int len1, const char *name2, int len2); |
e83c5163 | 357 | |
40469ee9 | 358 | extern void *read_object_with_reference(const unsigned char *sha1, |
bf0f910d | 359 | const char *required_type, |
40469ee9 JH |
360 | unsigned long *size, |
361 | unsigned char *sha1_ret); | |
f4913f91 | 362 | |
f8493ec0 JS |
363 | enum date_mode { DATE_NORMAL = 0, DATE_RELATIVE, DATE_SHORT }; |
364 | const char *show_date(unsigned long time, int timezone, enum date_mode mode); | |
2a387043 | 365 | const char *show_rfc2822_date(unsigned long time, int timezone); |
2a39064c | 366 | int parse_date(const char *date, char *buf, int bufsize); |
ecee9d9e | 367 | void datestamp(char *buf, int bufsize); |
3c07b1d1 | 368 | unsigned long approxidate(const char *); |
ecee9d9e | 369 | |
749be728 JH |
370 | extern const char *git_author_info(int); |
371 | extern const char *git_committer_info(int); | |
798123af | 372 | extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int); |
6aa33f40 | 373 | |
12dccc16 LT |
374 | struct checkout { |
375 | const char *base_dir; | |
376 | int base_dir_len; | |
377 | unsigned force:1, | |
378 | quiet:1, | |
379 | not_new:1, | |
380 | refresh_cache:1; | |
381 | }; | |
382 | ||
de84f99c | 383 | extern int checkout_entry(struct cache_entry *ce, struct checkout *state, char *topath); |
12dccc16 | 384 | |
9a217f2a | 385 | extern struct alternate_object_database { |
d5a63b99 | 386 | struct alternate_object_database *next; |
9a217f2a | 387 | char *name; |
8f1d2e6f | 388 | char base[FLEX_ARRAY]; /* more */ |
d5a63b99 | 389 | } *alt_odb_list; |
9a217f2a JH |
390 | extern void prepare_alt_odb(void); |
391 | ||
c41ee586 SP |
392 | struct pack_window { |
393 | struct pack_window *next; | |
394 | unsigned char *base; | |
395 | off_t offset; | |
396 | size_t len; | |
397 | unsigned int last_used; | |
398 | unsigned int inuse_cnt; | |
399 | }; | |
400 | ||
9a217f2a JH |
401 | extern struct packed_git { |
402 | struct packed_git *next; | |
c41ee586 | 403 | struct pack_window *windows; |
2dc3a234 | 404 | off_t pack_size; |
57059091 NP |
405 | const void *index_data; |
406 | size_t index_size; | |
407 | uint32_t num_objects; | |
42873078 | 408 | int index_version; |
57059091 | 409 | time_t mtime; |
9bc879c1 | 410 | int pack_fd; |
9d835df2 | 411 | int pack_local; |
bf592c50 | 412 | unsigned char sha1[20]; |
8f1d2e6f JH |
413 | /* something like ".git/objects/pack/xxxxx.pack" */ |
414 | char pack_name[FLEX_ARRAY]; /* more */ | |
9a217f2a | 415 | } *packed_git; |
f3bf9224 JH |
416 | |
417 | struct pack_entry { | |
c4001d92 | 418 | off_t offset; |
f3bf9224 JH |
419 | unsigned char sha1[20]; |
420 | struct packed_git *p; | |
421 | }; | |
422 | ||
d1c133f5 LT |
423 | struct ref { |
424 | struct ref *next; | |
425 | unsigned char old_sha1[20]; | |
426 | unsigned char new_sha1[20]; | |
ff27adf3 | 427 | unsigned char force; |
f88395ac | 428 | struct ref *peer_ref; /* when renaming */ |
8f1d2e6f | 429 | char name[FLEX_ARRAY]; /* more */ |
d1c133f5 LT |
430 | }; |
431 | ||
2718ff09 LT |
432 | #define REF_NORMAL (1u << 0) |
433 | #define REF_HEADS (1u << 1) | |
434 | #define REF_TAGS (1u << 2) | |
435 | ||
f42a5c4e | 436 | extern pid_t git_connect(int fd[2], char *url, const char *prog); |
f7192598 | 437 | extern int finish_connect(pid_t pid); |
013e7c7f | 438 | extern int path_match(const char *path, int nr, char **match); |
f88395ac JH |
439 | extern int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail, |
440 | int nr_refspec, char **refspec, int all); | |
41cb7488 | 441 | extern int get_ack(int fd, unsigned char *result_sha1); |
2718ff09 | 442 | extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, unsigned int flags); |
211b5f9e | 443 | extern int server_supports(const char *feature); |
f7192598 | 444 | |
bf592c50 | 445 | extern struct packed_git *parse_pack_index(unsigned char *sha1); |
2ab141a2 | 446 | extern struct packed_git *parse_pack_index_file(const unsigned char *sha1, |
42873078 | 447 | const char *idx_path); |
bf592c50 | 448 | |
9a217f2a | 449 | extern void prepare_packed_git(void); |
fc04c412 | 450 | extern void reprepare_packed_git(void); |
bf592c50 DB |
451 | extern void install_packed_git(struct packed_git *pack); |
452 | ||
453 | extern struct packed_git *find_sha1_pack(const unsigned char *sha1, | |
454 | struct packed_git *packs); | |
455 | ||
276bc2ca | 456 | extern void pack_report(void); |
c4001d92 | 457 | extern unsigned char* use_pack(struct packed_git *, struct pack_window **, off_t, unsigned int *); |
03e79c88 | 458 | extern void unuse_pack(struct pack_window **); |
42873078 | 459 | extern struct packed_git *add_packed_git(const char *, int, int); |
d72308e0 | 460 | extern const unsigned char *nth_packed_object_sha1(const struct packed_git *, uint32_t); |
c4001d92 SP |
461 | extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *); |
462 | extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *); | |
72518e9c | 463 | extern unsigned long unpack_object_header_gently(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep); |
54dab52a | 464 | extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t); |
c4001d92 | 465 | extern const char *packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *); |
9a217f2a | 466 | |
8f3f9b09 JH |
467 | /* Dumb servers support */ |
468 | extern int update_server_info(int); | |
469 | ||
17712991 LT |
470 | typedef int (*config_fn_t)(const char *, const char *); |
471 | extern int git_default_config(const char *, const char *); | |
4f629539 | 472 | extern int git_config_from_file(config_fn_t fn, const char *); |
17712991 LT |
473 | extern int git_config(config_fn_t fn); |
474 | extern int git_config_int(const char *, const char *); | |
475 | extern int git_config_bool(const char *, const char *); | |
10bea152 | 476 | extern int git_config_set(const char *, const char *); |
4ddba79d | 477 | extern int git_config_set_multivar(const char *, const char *, const char *, int); |
0667fcfb | 478 | extern int git_config_rename_section(const char *, const char *); |
ab9cb76f | 479 | extern int check_repository_format_version(const char *var, const char *value); |
17712991 | 480 | |
e1b10391 LT |
481 | #define MAX_GITNAME (1000) |
482 | extern char git_default_email[MAX_GITNAME]; | |
483 | extern char git_default_name[MAX_GITNAME]; | |
484 | ||
1a8f2741 | 485 | extern const char *git_commit_encoding; |
3a55602e | 486 | extern const char *git_log_output_encoding; |
4e72dcec | 487 | |
f3123c4a | 488 | extern int copy_fd(int ifd, int ofd); |
93d26e4c | 489 | extern int read_in_full(int fd, void *buf, size_t count); |
e0814056 | 490 | extern int write_in_full(int fd, const void *buf, size_t count); |
7230e6d0 | 491 | extern void write_or_die(int fd, const void *buf, size_t count); |
6ce4e61f | 492 | extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg); |
e0814056 | 493 | extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg); |
ad897215 | 494 | |
f67b45f8 LT |
495 | /* pager.c */ |
496 | extern void setup_pager(void); | |
85fb65ed | 497 | extern int pager_in_use; |
aa086eb8 | 498 | extern int pager_use_color; |
f67b45f8 | 499 | |
051308f6 | 500 | /* base85 */ |
f9815772 JM |
501 | int decode_85(char *dst, const char *line, int linelen); |
502 | void encode_85(char *buf, const unsigned char *data, int bytes); | |
051308f6 | 503 | |
855419f7 | 504 | /* alloc.c */ |
100c5f3b LT |
505 | extern void *alloc_blob_node(void); |
506 | extern void *alloc_tree_node(void); | |
507 | extern void *alloc_commit_node(void); | |
508 | extern void *alloc_tag_node(void); | |
509 | extern void *alloc_object_node(void); | |
855419f7 LT |
510 | extern void alloc_report(void); |
511 | ||
6ce4e61f | 512 | /* trace.c */ |
0746d19a | 513 | extern int nfasprintf(char **str, const char *fmt, ...); |
6ce4e61f CC |
514 | extern int nfvasprintf(char **str, const char *fmt, va_list va); |
515 | extern void trace_printf(const char *format, ...); | |
516 | extern void trace_argv_printf(const char **argv, int count, const char *format, ...); | |
517 | ||
6c510bee | 518 | /* convert.c */ |
ac78e548 AR |
519 | extern char *convert_to_git(const char *path, const char *src, unsigned long *sizep); |
520 | extern char *convert_to_working_tree(const char *path, const char *src, unsigned long *sizep); | |
6c510bee | 521 | |
68faf689 JH |
522 | /* match-trees.c */ |
523 | void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int); | |
524 | ||
e83c5163 | 525 | #endif /* CACHE_H */ |