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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 | ||
9eec4795 LT |
27 | /* |
28 | * A "directory link" is a link to another git directory. | |
29 | * | |
30 | * The value 0160000 is not normally a valid mode, and | |
31 | * also just happens to be S_IFDIR + S_IFLNK | |
32 | * | |
33 | * NOTE! We *really* shouldn't depend on the S_IFxxx macros | |
34 | * always having the same values everywhere. We should use | |
35 | * our internal git values for these things, and then we can | |
36 | * translate that to the OS-specific value. It just so | |
37 | * happens that everybody shares the same bit representation | |
38 | * in the UNIX world (and apparently wider too..) | |
39 | */ | |
40 | #define S_IFDIRLNK 0160000 | |
41 | #define S_ISDIRLNK(m) (((m) & S_IFMT) == S_IFDIRLNK) | |
42 | ||
2386d658 LT |
43 | /* |
44 | * Intensive research over the course of many years has shown that | |
45 | * port 9418 is totally unused by anything else. Or | |
46 | * | |
47 | * Your search - "port 9418" - did not match any documents. | |
48 | * | |
49 | * as www.google.com puts it. | |
ba8a4970 LT |
50 | * |
51 | * This port has been properly assigned for git use by IANA: | |
52 | * git (Assigned-9418) [I06-050728-0001]. | |
53 | * | |
54 | * git 9418/tcp git pack transfer service | |
55 | * git 9418/udp git pack transfer service | |
56 | * | |
57 | * with Linus Torvalds <torvalds@osdl.org> as the point of | |
58 | * contact. September 2005. | |
59 | * | |
60 | * See http://www.iana.org/assignments/port-numbers | |
2386d658 LT |
61 | */ |
62 | #define DEFAULT_GIT_PORT 9418 | |
63 | ||
e83c5163 LT |
64 | /* |
65 | * Basic data structures for the directory cache | |
e83c5163 LT |
66 | */ |
67 | ||
68 | #define CACHE_SIGNATURE 0x44495243 /* "DIRC" */ | |
69 | struct cache_header { | |
ccc4feb5 LT |
70 | unsigned int hdr_signature; |
71 | unsigned int hdr_version; | |
72 | unsigned int hdr_entries; | |
e83c5163 LT |
73 | }; |
74 | ||
75 | /* | |
76 | * The "cache_time" is just the low 32 bits of the | |
77 | * time. It doesn't matter if it overflows - we only | |
78 | * check it for equality in the 32 bits we save. | |
79 | */ | |
80 | struct cache_time { | |
81 | unsigned int sec; | |
82 | unsigned int nsec; | |
83 | }; | |
84 | ||
85 | /* | |
86 | * dev/ino/uid/gid/size are also just tracked to the low 32 bits | |
87 | * Again - this is just a (very strong in practice) heuristic that | |
88 | * the inode hasn't changed. | |
ccc4feb5 LT |
89 | * |
90 | * We save the fields in big-endian order to allow using the | |
91 | * index file over NFS transparently. | |
e83c5163 LT |
92 | */ |
93 | struct cache_entry { | |
ccc4feb5 LT |
94 | struct cache_time ce_ctime; |
95 | struct cache_time ce_mtime; | |
96 | unsigned int ce_dev; | |
97 | unsigned int ce_ino; | |
98 | unsigned int ce_mode; | |
99 | unsigned int ce_uid; | |
100 | unsigned int ce_gid; | |
101 | unsigned int ce_size; | |
e83c5163 | 102 | unsigned char sha1[20]; |
f5cabd13 | 103 | unsigned short ce_flags; |
8f1d2e6f | 104 | char name[FLEX_ARRAY]; /* more */ |
e83c5163 LT |
105 | }; |
106 | ||
95fd5bf8 LT |
107 | #define CE_NAMEMASK (0x0fff) |
108 | #define CE_STAGEMASK (0x3000) | |
220a0b52 | 109 | #define CE_UPDATE (0x4000) |
5f73076c | 110 | #define CE_VALID (0x8000) |
aee46198 | 111 | #define CE_STAGESHIFT 12 |
95fd5bf8 | 112 | |
aee46198 JH |
113 | #define create_ce_flags(len, stage) htons((len) | ((stage) << CE_STAGESHIFT)) |
114 | #define ce_namelen(ce) (CE_NAMEMASK & ntohs((ce)->ce_flags)) | |
115 | #define ce_size(ce) cache_entry_size(ce_namelen(ce)) | |
116 | #define ce_stage(ce) ((CE_STAGEMASK & ntohs((ce)->ce_flags)) >> CE_STAGESHIFT) | |
117 | ||
e4479470 | 118 | #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644) |
8ae0a8c5 KS |
119 | static inline unsigned int create_ce_mode(unsigned int mode) |
120 | { | |
8ae0a8c5 KS |
121 | if (S_ISLNK(mode)) |
122 | return htonl(S_IFLNK); | |
9eec4795 LT |
123 | if (S_ISDIR(mode) || S_ISDIRLNK(mode)) |
124 | return htonl(S_IFDIRLNK); | |
db823d4a | 125 | return htonl(S_IFREG | ce_permissions(mode)); |
8ae0a8c5 | 126 | } |
185c975f JH |
127 | static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned int mode) |
128 | { | |
78a8d641 JS |
129 | extern int trust_executable_bit, has_symlinks; |
130 | if (!has_symlinks && S_ISREG(mode) && | |
131 | ce && S_ISLNK(ntohl(ce->ce_mode))) | |
132 | return ce->ce_mode; | |
185c975f JH |
133 | if (!trust_executable_bit && S_ISREG(mode)) { |
134 | if (ce && S_ISREG(ntohl(ce->ce_mode))) | |
135 | return ce->ce_mode; | |
136 | return create_ce_mode(0666); | |
137 | } | |
138 | return create_ce_mode(mode); | |
139 | } | |
1b0c7174 JH |
140 | #define canon_mode(mode) \ |
141 | (S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \ | |
9eec4795 | 142 | S_ISLNK(mode) ? S_IFLNK : S_ISDIR(mode) ? S_IFDIR : S_IFDIRLNK) |
e4479470 | 143 | |
aee46198 | 144 | #define cache_entry_size(len) ((offsetof(struct cache_entry,name) + (len) + 8) & ~7) |
f5cabd13 | 145 | |
88355048 PB |
146 | extern struct cache_entry **active_cache; |
147 | extern unsigned int active_nr, active_alloc, active_cache_changed; | |
bad68ec9 | 148 | extern struct cache_tree *active_cache_tree; |
e83c5163 | 149 | |
edaec3fb JH |
150 | enum object_type { |
151 | OBJ_BAD = -1, | |
152 | OBJ_NONE = 0, | |
153 | OBJ_COMMIT = 1, | |
154 | OBJ_TREE = 2, | |
155 | OBJ_BLOB = 3, | |
156 | OBJ_TAG = 4, | |
157 | /* 5 for future expansion */ | |
158 | OBJ_OFS_DELTA = 6, | |
159 | OBJ_REF_DELTA = 7, | |
160 | OBJ_MAX, | |
161 | }; | |
162 | ||
8ac069ac JH |
163 | #define GIT_DIR_ENVIRONMENT "GIT_DIR" |
164 | #define DEFAULT_GIT_DIR_ENVIRONMENT ".git" | |
d19938ab | 165 | #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY" |
bb233d69 | 166 | #define INDEX_ENVIRONMENT "GIT_INDEX_FILE" |
5da5c8f4 | 167 | #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE" |
d4ebc36c JH |
168 | #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR" |
169 | #define CONFIG_ENVIRONMENT "GIT_CONFIG" | |
170 | #define CONFIG_LOCAL_ENVIRONMENT "GIT_CONFIG_LOCAL" | |
171 | #define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH" | |
bb233d69 | 172 | |
7d1864ce JH |
173 | extern int is_bare_repository_cfg; |
174 | extern int is_bare_repository(void); | |
68025633 | 175 | extern int is_inside_git_dir(void); |
c5fba16c | 176 | extern const char *get_git_dir(void); |
8ac069ac | 177 | extern char *get_object_directory(void); |
95fc7512 | 178 | extern char *get_refs_directory(void); |
8ac069ac | 179 | extern char *get_index_file(void); |
5da5c8f4 | 180 | extern char *get_graft_file(void); |
8ac069ac JH |
181 | |
182 | #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES" | |
bb233d69 | 183 | |
6b5ee137 | 184 | extern const char **get_pathspec(const char *prefix, const char **pathspec); |
4ca06608 | 185 | extern const char *setup_git_directory_gently(int *); |
d288a700 | 186 | extern const char *setup_git_directory(void); |
6b5ee137 | 187 | extern const char *prefix_path(const char *prefix, int len, const char *path); |
4ca06608 | 188 | extern const char *prefix_filename(const char *prefix, int len, const char *path); |
e23d0b4a | 189 | extern void verify_filename(const char *prefix, const char *name); |
ea92f41f | 190 | extern void verify_non_filename(const char *prefix, const char *name); |
d288a700 | 191 | |
e83c5163 LT |
192 | #define alloc_nr(x) (((x)+16)*3/2) |
193 | ||
734aab75 | 194 | /* Initialize and use the cache information */ |
e83c5163 | 195 | extern int read_cache(void); |
8fd2cb40 | 196 | extern int read_cache_from(const char *path); |
197ee8c9 | 197 | extern int write_cache(int newfd, struct cache_entry **cache, int entries); |
6d297f81 | 198 | extern int discard_cache(void); |
8dcf39c4 | 199 | extern int verify_path(const char *path); |
eb38c22f | 200 | extern int cache_name_pos(const char *name, int namelen); |
192268c1 JH |
201 | #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */ |
202 | #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */ | |
b155725d | 203 | #define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */ |
192268c1 | 204 | extern int add_cache_entry(struct cache_entry *ce, int option); |
8fd2cb40 | 205 | extern struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really); |
dbbce55b | 206 | extern int remove_cache_entry_at(int pos); |
6b5ee137 | 207 | extern int remove_file_from_cache(const char *path); |
fd1c3bf0 | 208 | extern int add_file_to_cache(const char *path, int verbose); |
dbbce55b | 209 | extern int ce_same_name(struct cache_entry *a, struct cache_entry *b); |
5f73076c JH |
210 | extern int ce_match_stat(struct cache_entry *ce, struct stat *st, int); |
211 | extern int ce_modified(struct cache_entry *ce, struct stat *st, int); | |
c0fd1f51 | 212 | extern int ce_path_match(const struct cache_entry *ce, const char **pathspec); |
53bca91a | 213 | extern int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object, enum object_type type, const char *path); |
e7332f96 | 214 | extern int read_pipe(int fd, char** return_buf, unsigned long* return_size); |
024510c8 | 215 | extern int index_pipe(unsigned char *sha1, int fd, const char *type, int write_object); |
ec1fcc16 | 216 | extern int index_path(unsigned char *sha1, const char *path, struct stat *st, int write_object); |
415e96c8 JH |
217 | extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st); |
218 | ||
405e5b2f LT |
219 | #define REFRESH_REALLY 0x0001 /* ignore_valid */ |
220 | #define REFRESH_UNMERGED 0x0002 /* allow unmerged */ | |
221 | #define REFRESH_QUIET 0x0004 /* be quiet about it */ | |
222 | #define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */ | |
223 | extern int refresh_cache(unsigned int flags); | |
224 | ||
021b6e45 JH |
225 | struct lock_file { |
226 | struct lock_file *next; | |
1084b845 | 227 | char on_list; |
021b6e45 | 228 | char filename[PATH_MAX]; |
415e96c8 | 229 | }; |
40aaae88 | 230 | extern int hold_lock_file_for_update(struct lock_file *, const char *path, int); |
021b6e45 | 231 | extern int commit_lock_file(struct lock_file *); |
30ca07a2 JH |
232 | |
233 | extern int hold_locked_index(struct lock_file *, int); | |
234 | extern int commit_locked_index(struct lock_file *); | |
5e7f56ac | 235 | extern void set_alternate_index_output(const char *); |
30ca07a2 | 236 | |
021b6e45 | 237 | extern void rollback_lock_file(struct lock_file *); |
ac5409e4 | 238 | extern int delete_ref(const char *, unsigned char *sha1); |
734aab75 | 239 | |
2ae1c53b | 240 | /* Environment bits from configuration mechanism */ |
93821bd9 | 241 | extern int use_legacy_headers; |
17712991 | 242 | extern int trust_executable_bit; |
78a8d641 | 243 | extern int has_symlinks; |
5f73076c | 244 | extern int assume_unchanged; |
9f0bb90d | 245 | extern int prefer_symlink_refs; |
6de08ae6 | 246 | extern int log_all_ref_updates; |
2f8acdb3 | 247 | extern int warn_ambiguous_refs; |
457f06d6 | 248 | extern int shared_repository; |
2ae1c53b | 249 | extern const char *apply_default_whitespace; |
12f6c308 | 250 | extern int zlib_compression_level; |
60bb8b14 | 251 | extern size_t packed_git_window_size; |
77ccc5bb | 252 | extern size_t packed_git_limit; |
18bdec11 | 253 | extern size_t delta_base_cache_limit; |
6c510bee | 254 | extern int auto_crlf; |
17712991 | 255 | |
ab9cb76f JH |
256 | #define GIT_REPO_VERSION 0 |
257 | extern int repository_format_version; | |
258 | extern int check_repository_format(void); | |
259 | ||
734aab75 LT |
260 | #define MTIME_CHANGED 0x0001 |
261 | #define CTIME_CHANGED 0x0002 | |
262 | #define OWNER_CHANGED 0x0004 | |
263 | #define MODE_CHANGED 0x0008 | |
264 | #define INODE_CHANGED 0x0010 | |
265 | #define DATA_CHANGED 0x0020 | |
8ae0a8c5 | 266 | #define TYPE_CHANGED 0x0040 |
e83c5163 LT |
267 | |
268 | /* Return a statically allocated filename matching the sha1 signature */ | |
4ec99bf0 TS |
269 | extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2))); |
270 | extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2))); | |
73134b6d | 271 | extern char *sha1_file_name(const unsigned char *sha1); |
bf592c50 DB |
272 | extern char *sha1_pack_name(const unsigned char *sha1); |
273 | extern char *sha1_pack_index_name(const unsigned char *sha1); | |
013f276e | 274 | extern const char *find_unique_abbrev(const unsigned char *sha1, int); |
88cd621d | 275 | extern const unsigned char null_sha1[20]; |
0bef57ee DR |
276 | static inline int is_null_sha1(const unsigned char *sha1) |
277 | { | |
278 | return !memcmp(sha1, null_sha1, 20); | |
279 | } | |
a89fccd2 DR |
280 | static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2) |
281 | { | |
282 | return memcmp(sha1, sha2, 20); | |
283 | } | |
e702496e SP |
284 | static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src) |
285 | { | |
286 | memcpy(sha_dst, sha_src, 20); | |
287 | } | |
a8e0d16d JH |
288 | static inline void hashclr(unsigned char *hash) |
289 | { | |
290 | memset(hash, 0, 20); | |
291 | } | |
e83c5163 | 292 | |
f2db68ed HE |
293 | int git_mkstemp(char *path, size_t n, const char *template); |
294 | ||
94df2506 JH |
295 | enum sharedrepo { |
296 | PERM_UMASK = 0, | |
297 | PERM_GROUP, | |
298 | PERM_EVERYBODY | |
299 | }; | |
300 | int git_config_perm(const char *var, const char *value); | |
457f06d6 | 301 | int adjust_shared_perm(const char *path); |
b2cb9425 | 302 | int safe_create_leading_directories(char *path); |
bd22c904 | 303 | char *enter_repo(char *path, int strict); |
b2cb9425 | 304 | |
e83c5163 | 305 | /* Read and unpack a sha1 file into memory, write memory to a sha1 file */ |
21666f1a | 306 | extern int sha1_object_info(const unsigned char *, unsigned long *); |
21666f1a | 307 | extern void * read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size); |
ce9fbf16 | 308 | extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1); |
bf0f910d | 309 | extern int write_sha1_file(void *buf, unsigned long len, const char *type, unsigned char *return_sha1); |
21666f1a | 310 | extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *); |
8237b185 | 311 | |
5d6ccf5c | 312 | extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type); |
e83c5163 | 313 | |
70b9829e DB |
314 | extern int write_sha1_from_fd(const unsigned char *sha1, int fd, char *buffer, |
315 | size_t bufsize, size_t *bufposn); | |
a5eda52b | 316 | extern int write_sha1_to_fd(int fd, const unsigned char *sha1); |
839837b9 | 317 | extern int move_temp_to_file(const char *tmpfile, const char *filename); |
8237b185 | 318 | |
106d710b | 319 | extern int has_sha1_pack(const unsigned char *sha1, const char **ignore); |
8237b185 | 320 | extern int has_sha1_file(const unsigned char *sha1); |
bb6b8e4f JH |
321 | extern void *map_sha1_file(const unsigned char *sha1, unsigned long *); |
322 | extern int legacy_loose_object(unsigned char *); | |
8237b185 | 323 | |
bf592c50 DB |
324 | extern int has_pack_file(const unsigned char *sha1); |
325 | extern int has_pack_index(const unsigned char *sha1); | |
326 | ||
e49521b5 JH |
327 | extern signed char hexval_table[256]; |
328 | static inline unsigned int hexval(unsigned int c) | |
329 | { | |
330 | return hexval_table[c]; | |
331 | } | |
332 | ||
e83c5163 | 333 | /* Convert to/from hex/sha1 representation */ |
46a6c262 JH |
334 | #define MINIMUM_ABBREV 4 |
335 | #define DEFAULT_ABBREV 7 | |
336 | ||
3c249c95 | 337 | extern int get_sha1(const char *str, unsigned char *sha1); |
197ee8c9 LT |
338 | extern int get_sha1_hex(const char *hex, unsigned char *sha1); |
339 | extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */ | |
ca8db142 | 340 | extern int read_ref(const char *filename, unsigned char *sha1); |
8da19775 | 341 | extern const char *resolve_ref(const char *path, unsigned char *sha1, int, int *); |
e86eb666 | 342 | extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref); |
eb3a4822 | 343 | extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref); |
e86eb666 | 344 | |
8b5157e4 | 345 | extern int create_symref(const char *ref, const char *refs_heads_master, const char *logmsg); |
c847f537 | 346 | extern int validate_headref(const char *ref); |
e83c5163 | 347 | |
958ba6c9 | 348 | extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2); |
79517a06 | 349 | extern int cache_name_compare(const char *name1, int len1, const char *name2, int len2); |
e83c5163 | 350 | |
40469ee9 | 351 | extern void *read_object_with_reference(const unsigned char *sha1, |
bf0f910d | 352 | const char *required_type, |
40469ee9 JH |
353 | unsigned long *size, |
354 | unsigned char *sha1_ret); | |
f4913f91 | 355 | |
f8493ec0 JS |
356 | enum date_mode { DATE_NORMAL = 0, DATE_RELATIVE, DATE_SHORT }; |
357 | const char *show_date(unsigned long time, int timezone, enum date_mode mode); | |
2a387043 | 358 | const char *show_rfc2822_date(unsigned long time, int timezone); |
2a39064c | 359 | int parse_date(const char *date, char *buf, int bufsize); |
ecee9d9e | 360 | void datestamp(char *buf, int bufsize); |
3c07b1d1 | 361 | unsigned long approxidate(const char *); |
ecee9d9e | 362 | |
749be728 JH |
363 | extern const char *git_author_info(int); |
364 | extern const char *git_committer_info(int); | |
798123af | 365 | extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int); |
6aa33f40 | 366 | |
12dccc16 LT |
367 | struct checkout { |
368 | const char *base_dir; | |
369 | int base_dir_len; | |
370 | unsigned force:1, | |
371 | quiet:1, | |
372 | not_new:1, | |
373 | refresh_cache:1; | |
374 | }; | |
375 | ||
de84f99c | 376 | extern int checkout_entry(struct cache_entry *ce, struct checkout *state, char *topath); |
12dccc16 | 377 | |
9a217f2a | 378 | extern struct alternate_object_database { |
d5a63b99 | 379 | struct alternate_object_database *next; |
9a217f2a | 380 | char *name; |
8f1d2e6f | 381 | char base[FLEX_ARRAY]; /* more */ |
d5a63b99 | 382 | } *alt_odb_list; |
9a217f2a JH |
383 | extern void prepare_alt_odb(void); |
384 | ||
c41ee586 SP |
385 | struct pack_window { |
386 | struct pack_window *next; | |
387 | unsigned char *base; | |
388 | off_t offset; | |
389 | size_t len; | |
390 | unsigned int last_used; | |
391 | unsigned int inuse_cnt; | |
392 | }; | |
393 | ||
9a217f2a JH |
394 | extern struct packed_git { |
395 | struct packed_git *next; | |
c41ee586 | 396 | struct pack_window *windows; |
42873078 | 397 | const void *index_data; |
2dc3a234 SP |
398 | off_t index_size; |
399 | off_t pack_size; | |
42873078 NP |
400 | time_t mtime; |
401 | int index_version; | |
9bc879c1 | 402 | int pack_fd; |
9d835df2 | 403 | int pack_local; |
bf592c50 | 404 | unsigned char sha1[20]; |
8f1d2e6f JH |
405 | /* something like ".git/objects/pack/xxxxx.pack" */ |
406 | char pack_name[FLEX_ARRAY]; /* more */ | |
9a217f2a | 407 | } *packed_git; |
f3bf9224 JH |
408 | |
409 | struct pack_entry { | |
c4001d92 | 410 | off_t offset; |
f3bf9224 JH |
411 | unsigned char sha1[20]; |
412 | struct packed_git *p; | |
413 | }; | |
414 | ||
d1c133f5 LT |
415 | struct ref { |
416 | struct ref *next; | |
417 | unsigned char old_sha1[20]; | |
418 | unsigned char new_sha1[20]; | |
ff27adf3 | 419 | unsigned char force; |
f88395ac | 420 | struct ref *peer_ref; /* when renaming */ |
8f1d2e6f | 421 | char name[FLEX_ARRAY]; /* more */ |
d1c133f5 LT |
422 | }; |
423 | ||
2718ff09 LT |
424 | #define REF_NORMAL (1u << 0) |
425 | #define REF_HEADS (1u << 1) | |
426 | #define REF_TAGS (1u << 2) | |
427 | ||
f42a5c4e | 428 | extern pid_t git_connect(int fd[2], char *url, const char *prog); |
f7192598 | 429 | extern int finish_connect(pid_t pid); |
013e7c7f | 430 | extern int path_match(const char *path, int nr, char **match); |
f88395ac JH |
431 | extern int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail, |
432 | int nr_refspec, char **refspec, int all); | |
41cb7488 | 433 | extern int get_ack(int fd, unsigned char *result_sha1); |
2718ff09 | 434 | extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, unsigned int flags); |
211b5f9e | 435 | extern int server_supports(const char *feature); |
f7192598 | 436 | |
bf592c50 | 437 | extern struct packed_git *parse_pack_index(unsigned char *sha1); |
2ab141a2 | 438 | extern struct packed_git *parse_pack_index_file(const unsigned char *sha1, |
42873078 | 439 | const char *idx_path); |
bf592c50 | 440 | |
9a217f2a | 441 | extern void prepare_packed_git(void); |
fc04c412 | 442 | extern void reprepare_packed_git(void); |
bf592c50 DB |
443 | extern void install_packed_git(struct packed_git *pack); |
444 | ||
445 | extern struct packed_git *find_sha1_pack(const unsigned char *sha1, | |
446 | struct packed_git *packs); | |
447 | ||
276bc2ca | 448 | extern void pack_report(void); |
c4001d92 | 449 | extern unsigned char* use_pack(struct packed_git *, struct pack_window **, off_t, unsigned int *); |
03e79c88 | 450 | extern void unuse_pack(struct pack_window **); |
42873078 | 451 | extern struct packed_git *add_packed_git(const char *, int, int); |
326bf396 | 452 | extern uint32_t num_packed_objects(const struct packed_git *p); |
d72308e0 | 453 | extern const unsigned char *nth_packed_object_sha1(const struct packed_git *, uint32_t); |
c4001d92 SP |
454 | extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *); |
455 | extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *); | |
72518e9c | 456 | extern unsigned long unpack_object_header_gently(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep); |
c4001d92 | 457 | extern const char *packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *); |
9a217f2a | 458 | |
8f3f9b09 JH |
459 | /* Dumb servers support */ |
460 | extern int update_server_info(int); | |
461 | ||
17712991 LT |
462 | typedef int (*config_fn_t)(const char *, const char *); |
463 | extern int git_default_config(const char *, const char *); | |
4f629539 | 464 | extern int git_config_from_file(config_fn_t fn, const char *); |
17712991 LT |
465 | extern int git_config(config_fn_t fn); |
466 | extern int git_config_int(const char *, const char *); | |
467 | extern int git_config_bool(const char *, const char *); | |
10bea152 | 468 | extern int git_config_set(const char *, const char *); |
4ddba79d | 469 | extern int git_config_set_multivar(const char *, const char *, const char *, int); |
0667fcfb | 470 | extern int git_config_rename_section(const char *, const char *); |
ab9cb76f | 471 | extern int check_repository_format_version(const char *var, const char *value); |
17712991 | 472 | |
e1b10391 LT |
473 | #define MAX_GITNAME (1000) |
474 | extern char git_default_email[MAX_GITNAME]; | |
475 | extern char git_default_name[MAX_GITNAME]; | |
476 | ||
1a8f2741 | 477 | extern const char *git_commit_encoding; |
3a55602e | 478 | extern const char *git_log_output_encoding; |
4e72dcec | 479 | |
f3123c4a | 480 | extern int copy_fd(int ifd, int ofd); |
93d26e4c | 481 | extern int read_in_full(int fd, void *buf, size_t count); |
e0814056 | 482 | extern int write_in_full(int fd, const void *buf, size_t count); |
7230e6d0 | 483 | extern void write_or_die(int fd, const void *buf, size_t count); |
6ce4e61f | 484 | extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg); |
e0814056 | 485 | extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg); |
ad897215 | 486 | |
f67b45f8 LT |
487 | /* pager.c */ |
488 | extern void setup_pager(void); | |
85fb65ed | 489 | extern int pager_in_use; |
aa086eb8 | 490 | extern int pager_use_color; |
f67b45f8 | 491 | |
051308f6 JH |
492 | /* base85 */ |
493 | int decode_85(char *dst, char *line, int linelen); | |
0660626c | 494 | void encode_85(char *buf, unsigned char *data, int bytes); |
051308f6 | 495 | |
855419f7 LT |
496 | /* alloc.c */ |
497 | struct blob; | |
498 | struct tree; | |
499 | struct commit; | |
500 | struct tag; | |
501 | extern struct blob *alloc_blob_node(void); | |
502 | extern struct tree *alloc_tree_node(void); | |
503 | extern struct commit *alloc_commit_node(void); | |
504 | extern struct tag *alloc_tag_node(void); | |
505 | extern void alloc_report(void); | |
506 | ||
6ce4e61f | 507 | /* trace.c */ |
0746d19a | 508 | extern int nfasprintf(char **str, const char *fmt, ...); |
6ce4e61f CC |
509 | extern int nfvasprintf(char **str, const char *fmt, va_list va); |
510 | extern void trace_printf(const char *format, ...); | |
511 | extern void trace_argv_printf(const char **argv, int count, const char *format, ...); | |
512 | ||
6c510bee LT |
513 | /* convert.c */ |
514 | extern int convert_to_git(const char *path, char **bufp, unsigned long *sizep); | |
515 | extern int convert_to_working_tree(const char *path, char **bufp, unsigned long *sizep); | |
516 | ||
68faf689 JH |
517 | /* match-trees.c */ |
518 | void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int); | |
519 | ||
e83c5163 | 520 | #endif /* CACHE_H */ |