4 #include "git-compat-util.h"
11 #if defined(NO_DEFLATE_BOUND) || ZLIB_VERNUM < 0x1200
12 #define deflateBound(c,s) ((s) + (((s) + 7) >> 3) + (((s) + 63) >> 6) + 11)
15 #if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT)
16 #define DTYPE(de) ((de)->d_type)
26 #define DTYPE(de) DT_UNKNOWN
29 /* unknown mode (impossible combination S_IFIFO|S_IFCHR) */
30 #define S_IFINVALID 0030000
33 * A "directory link" is a link to another git directory.
35 * The value 0160000 is not normally a valid mode, and
36 * also just happens to be S_IFDIR + S_IFLNK
38 * NOTE! We *really* shouldn't depend on the S_IFxxx macros
39 * always having the same values everywhere. We should use
40 * our internal git values for these things, and then we can
41 * translate that to the OS-specific value. It just so
42 * happens that everybody shares the same bit representation
43 * in the UNIX world (and apparently wider too..)
45 #define S_IFGITLINK 0160000
46 #define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK)
49 * Intensive research over the course of many years has shown that
50 * port 9418 is totally unused by anything else. Or
52 * Your search - "port 9418" - did not match any documents.
54 * as www.google.com puts it.
56 * This port has been properly assigned for git use by IANA:
57 * git (Assigned-9418) [I06-050728-0001].
59 * git 9418/tcp git pack transfer service
60 * git 9418/udp git pack transfer service
62 * with Linus Torvalds <torvalds@osdl.org> as the point of
63 * contact. September 2005.
65 * See http://www.iana.org/assignments/port-numbers
67 #define DEFAULT_GIT_PORT 9418
70 * Basic data structures for the directory cache
73 #define CACHE_SIGNATURE 0x44495243 /* "DIRC" */
75 unsigned int hdr_signature
;
76 unsigned int hdr_version
;
77 unsigned int hdr_entries
;
81 * The "cache_time" is just the low 32 bits of the
82 * time. It doesn't matter if it overflows - we only
83 * check it for equality in the 32 bits we save.
91 * dev/ino/uid/gid/size are also just tracked to the low 32 bits
92 * Again - this is just a (very strong in practice) heuristic that
93 * the inode hasn't changed.
95 * We save the fields in big-endian order to allow using the
96 * index file over NFS transparently.
98 struct ondisk_cache_entry
{
99 struct cache_time ctime
;
100 struct cache_time mtime
;
107 unsigned char sha1
[20];
108 unsigned short flags
;
109 char name
[FLEX_ARRAY
]; /* more */
113 unsigned int ce_ctime
;
114 unsigned int ce_mtime
;
117 unsigned int ce_mode
;
120 unsigned int ce_size
;
121 unsigned int ce_flags
;
122 unsigned char sha1
[20];
123 struct cache_entry
*next
;
124 char name
[FLEX_ARRAY
]; /* more */
127 #define CE_NAMEMASK (0x0fff)
128 #define CE_STAGEMASK (0x3000)
129 #define CE_VALID (0x8000)
130 #define CE_STAGESHIFT 12
133 #define CE_UPDATE (0x10000)
134 #define CE_REMOVE (0x20000)
135 #define CE_UPTODATE (0x40000)
136 #define CE_ADDED (0x80000)
138 #define CE_HASHED (0x100000)
139 #define CE_UNHASHED (0x200000)
142 * Copy the sha1 and stat state of a cache entry from one to
143 * another. But we never change the name, or the hash state!
145 #define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)
146 static inline void copy_cache_entry(struct cache_entry
*dst
, struct cache_entry
*src
)
148 unsigned int state
= dst
->ce_flags
& CE_STATE_MASK
;
150 /* Don't copy hash chain and name */
151 memcpy(dst
, src
, offsetof(struct cache_entry
, next
));
153 /* Restore the hash state */
154 dst
->ce_flags
= (dst
->ce_flags
& ~CE_STATE_MASK
) | state
;
157 static inline unsigned create_ce_flags(size_t len
, unsigned stage
)
159 if (len
>= CE_NAMEMASK
)
161 return (len
| (stage
<< CE_STAGESHIFT
));
164 static inline size_t ce_namelen(const struct cache_entry
*ce
)
166 size_t len
= ce
->ce_flags
& CE_NAMEMASK
;
167 if (len
< CE_NAMEMASK
)
169 return strlen(ce
->name
+ CE_NAMEMASK
) + CE_NAMEMASK
;
172 #define ce_size(ce) cache_entry_size(ce_namelen(ce))
173 #define ondisk_ce_size(ce) ondisk_cache_entry_size(ce_namelen(ce))
174 #define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT)
175 #define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE)
176 #define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE)
178 #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644)
179 static inline unsigned int create_ce_mode(unsigned int mode
)
183 if (S_ISDIR(mode
) || S_ISGITLINK(mode
))
185 return S_IFREG
| ce_permissions(mode
);
187 static inline unsigned int ce_mode_from_stat(struct cache_entry
*ce
, unsigned int mode
)
189 extern int trust_executable_bit
, has_symlinks
;
190 if (!has_symlinks
&& S_ISREG(mode
) &&
191 ce
&& S_ISLNK(ce
->ce_mode
))
193 if (!trust_executable_bit
&& S_ISREG(mode
)) {
194 if (ce
&& S_ISREG(ce
->ce_mode
))
196 return create_ce_mode(0666);
198 return create_ce_mode(mode
);
200 static inline int ce_to_dtype(const struct cache_entry
*ce
)
202 unsigned ce_mode
= ntohl(ce
->ce_mode
);
203 if (S_ISREG(ce_mode
))
205 else if (S_ISDIR(ce_mode
) || S_ISGITLINK(ce_mode
))
207 else if (S_ISLNK(ce_mode
))
212 #define canon_mode(mode) \
213 (S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \
214 S_ISLNK(mode) ? S_IFLNK : S_ISDIR(mode) ? S_IFDIR : S_IFGITLINK)
216 #define cache_entry_size(len) ((offsetof(struct cache_entry,name) + (len) + 8) & ~7)
217 #define ondisk_cache_entry_size(len) ((offsetof(struct ondisk_cache_entry,name) + (len) + 8) & ~7)
220 struct cache_entry
**cache
;
221 unsigned int cache_nr
, cache_alloc
, cache_changed
;
222 struct cache_tree
*cache_tree
;
225 unsigned name_hash_initialized
: 1;
226 struct hash_table name_hash
;
229 extern struct index_state the_index
;
232 extern void add_name_hash(struct index_state
*istate
, struct cache_entry
*ce
);
234 * We don't actually *remove* it, we can just mark it invalid so that
235 * we won't find it in lookups.
237 * Not only would we have to search the lists (simple enough), but
238 * we'd also have to rehash other hash buckets in case this makes the
239 * hash bucket empty (common). So it's much better to just mark
242 static inline void remove_name_hash(struct cache_entry
*ce
)
244 ce
->ce_flags
|= CE_UNHASHED
;
248 #ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
249 #define active_cache (the_index.cache)
250 #define active_nr (the_index.cache_nr)
251 #define active_alloc (the_index.cache_alloc)
252 #define active_cache_changed (the_index.cache_changed)
253 #define active_cache_tree (the_index.cache_tree)
255 #define read_cache() read_index(&the_index)
256 #define read_cache_from(path) read_index_from(&the_index, (path))
257 #define write_cache(newfd, cache, entries) write_index(&the_index, (newfd))
258 #define discard_cache() discard_index(&the_index)
259 #define unmerged_cache() unmerged_index(&the_index)
260 #define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen))
261 #define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option))
262 #define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos))
263 #define remove_file_from_cache(path) remove_file_from_index(&the_index, (path))
264 #define add_to_cache(path, st, verbose) add_to_index(&the_index, (path), (st), (verbose))
265 #define add_file_to_cache(path, verbose) add_file_to_index(&the_index, (path), (verbose))
266 #define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL)
267 #define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options))
268 #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
269 #define cache_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase))
279 /* 5 for future expansion */
286 static inline enum object_type
object_type(unsigned int mode
)
288 return S_ISDIR(mode
) ? OBJ_TREE
:
289 S_ISGITLINK(mode
) ? OBJ_COMMIT
:
293 #define GIT_DIR_ENVIRONMENT "GIT_DIR"
294 #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
295 #define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
296 #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
297 #define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
298 #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
299 #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR"
300 #define CONFIG_ENVIRONMENT "GIT_CONFIG"
301 #define CONFIG_LOCAL_ENVIRONMENT "GIT_CONFIG_LOCAL"
302 #define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH"
303 #define GITATTRIBUTES_FILE ".gitattributes"
304 #define INFOATTRIBUTES_FILE "info/attributes"
305 #define ATTRIBUTE_MACRO_PREFIX "[attr]"
307 extern int is_bare_repository_cfg
;
308 extern int is_bare_repository(void);
309 extern int is_inside_git_dir(void);
310 extern char *git_work_tree_cfg
;
311 extern int is_inside_work_tree(void);
312 extern const char *get_git_dir(void);
313 extern char *get_object_directory(void);
314 extern char *get_refs_directory(void);
315 extern char *get_index_file(void);
316 extern char *get_graft_file(void);
317 extern int set_git_dir(const char *path
);
318 extern const char *get_git_work_tree(void);
319 extern const char *read_gitfile_gently(const char *path
);
321 #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
323 extern const char **get_pathspec(const char *prefix
, const char **pathspec
);
324 extern void setup_work_tree(void);
325 extern const char *setup_git_directory_gently(int *);
326 extern const char *setup_git_directory(void);
327 extern const char *prefix_path(const char *prefix
, int len
, const char *path
);
328 extern const char *prefix_filename(const char *prefix
, int len
, const char *path
);
329 extern void verify_filename(const char *prefix
, const char *name
);
330 extern void verify_non_filename(const char *prefix
, const char *name
);
332 #define alloc_nr(x) (((x)+16)*3/2)
335 * Realloc the buffer pointed at by variable 'x' so that it can hold
336 * at least 'nr' entries; the number of entries currently allocated
337 * is 'alloc', using the standard growing factor alloc_nr() macro.
339 * DO NOT USE any expression with side-effect for 'x' or 'alloc'.
341 #define ALLOC_GROW(x, nr, alloc) \
343 if ((nr) > alloc) { \
344 if (alloc_nr(alloc) < (nr)) \
347 alloc = alloc_nr(alloc); \
348 x = xrealloc((x), alloc * sizeof(*(x))); \
352 /* Initialize and use the cache information */
353 extern int read_index(struct index_state
*);
354 extern int read_index_from(struct index_state
*, const char *path
);
355 extern int write_index(const struct index_state
*, int newfd
);
356 extern int discard_index(struct index_state
*);
357 extern int unmerged_index(const struct index_state
*);
358 extern int verify_path(const char *path
);
359 extern struct cache_entry
*index_name_exists(struct index_state
*istate
, const char *name
, int namelen
, int igncase
);
360 extern int index_name_pos(const struct index_state
*, const char *name
, int namelen
);
361 #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
362 #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
363 #define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
364 #define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
365 extern int add_index_entry(struct index_state
*, struct cache_entry
*ce
, int option
);
366 extern struct cache_entry
*refresh_cache_entry(struct cache_entry
*ce
, int really
);
367 extern int remove_index_entry_at(struct index_state
*, int pos
);
368 extern int remove_file_from_index(struct index_state
*, const char *path
);
369 extern int add_to_index(struct index_state
*, const char *path
, struct stat
*, int verbose
);
370 extern int add_file_to_index(struct index_state
*, const char *path
, int verbose
);
371 extern struct cache_entry
*make_cache_entry(unsigned int mode
, const unsigned char *sha1
, const char *path
, int stage
, int refresh
);
372 extern int ce_same_name(struct cache_entry
*a
, struct cache_entry
*b
);
374 /* do stat comparison even if CE_VALID is true */
375 #define CE_MATCH_IGNORE_VALID 01
376 /* do not check the contents but report dirty on racily-clean entries */
377 #define CE_MATCH_RACY_IS_DIRTY 02
378 extern int ie_match_stat(const struct index_state
*, struct cache_entry
*, struct stat
*, unsigned int);
379 extern int ie_modified(const struct index_state
*, struct cache_entry
*, struct stat
*, unsigned int);
381 extern int ce_path_match(const struct cache_entry
*ce
, const char **pathspec
);
382 extern int index_fd(unsigned char *sha1
, int fd
, struct stat
*st
, int write_object
, enum object_type type
, const char *path
);
383 extern int index_pipe(unsigned char *sha1
, int fd
, const char *type
, int write_object
);
384 extern int index_path(unsigned char *sha1
, const char *path
, struct stat
*st
, int write_object
);
385 extern void fill_stat_cache_info(struct cache_entry
*ce
, struct stat
*st
);
387 #define REFRESH_REALLY 0x0001 /* ignore_valid */
388 #define REFRESH_UNMERGED 0x0002 /* allow unmerged */
389 #define REFRESH_QUIET 0x0004 /* be quiet about it */
390 #define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */
391 extern int refresh_index(struct index_state
*, unsigned int flags
, const char **pathspec
, char *seen
);
394 struct lock_file
*next
;
398 char filename
[PATH_MAX
];
400 extern int hold_lock_file_for_update(struct lock_file
*, const char *path
, int);
401 extern int commit_lock_file(struct lock_file
*);
403 extern int hold_locked_index(struct lock_file
*, int);
404 extern int commit_locked_index(struct lock_file
*);
405 extern void set_alternate_index_output(const char *);
406 extern int close_lock_file(struct lock_file
*);
407 extern void rollback_lock_file(struct lock_file
*);
408 extern int delete_ref(const char *, const unsigned char *sha1
);
410 /* Environment bits from configuration mechanism */
411 extern int trust_executable_bit
;
412 extern int quote_path_fully
;
413 extern int has_symlinks
;
414 extern int ignore_case
;
415 extern int assume_unchanged
;
416 extern int prefer_symlink_refs
;
417 extern int log_all_ref_updates
;
418 extern int warn_ambiguous_refs
;
419 extern int shared_repository
;
420 extern const char *apply_default_whitespace
;
421 extern int zlib_compression_level
;
422 extern int core_compression_level
;
423 extern int core_compression_seen
;
424 extern size_t packed_git_window_size
;
425 extern size_t packed_git_limit
;
426 extern size_t delta_base_cache_limit
;
427 extern int auto_crlf
;
435 extern enum safe_crlf safe_crlf
;
438 BRANCH_TRACK_NEVER
= 0,
441 BRANCH_TRACK_EXPLICIT
,
444 extern enum branch_track git_branch_track
;
446 #define GIT_REPO_VERSION 0
447 extern int repository_format_version
;
448 extern int check_repository_format(void);
450 #define MTIME_CHANGED 0x0001
451 #define CTIME_CHANGED 0x0002
452 #define OWNER_CHANGED 0x0004
453 #define MODE_CHANGED 0x0008
454 #define INODE_CHANGED 0x0010
455 #define DATA_CHANGED 0x0020
456 #define TYPE_CHANGED 0x0040
458 /* Return a statically allocated filename matching the sha1 signature */
459 extern char *mkpath(const char *fmt
, ...) __attribute__((format (printf
, 1, 2)));
460 extern char *git_path(const char *fmt
, ...) __attribute__((format (printf
, 1, 2)));
461 extern char *sha1_file_name(const unsigned char *sha1
);
462 extern char *sha1_pack_name(const unsigned char *sha1
);
463 extern char *sha1_pack_index_name(const unsigned char *sha1
);
464 extern const char *find_unique_abbrev(const unsigned char *sha1
, int);
465 extern const unsigned char null_sha1
[20];
466 static inline int is_null_sha1(const unsigned char *sha1
)
468 return !memcmp(sha1
, null_sha1
, 20);
470 static inline int hashcmp(const unsigned char *sha1
, const unsigned char *sha2
)
472 return memcmp(sha1
, sha2
, 20);
474 static inline void hashcpy(unsigned char *sha_dst
, const unsigned char *sha_src
)
476 memcpy(sha_dst
, sha_src
, 20);
478 static inline void hashclr(unsigned char *hash
)
483 int git_mkstemp(char *path
, size_t n
, const char *template);
488 * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must
489 * not be changed. Old repositories have core.sharedrepository written in
490 * numeric format, and therefore these values are preserved for compatibility
496 OLD_PERM_EVERYBODY
= 2,
498 PERM_EVERYBODY
= 0664,
500 int git_config_perm(const char *var
, const char *value
);
501 int adjust_shared_perm(const char *path
);
502 int safe_create_leading_directories(char *path
);
503 char *enter_repo(char *path
, int strict
);
504 static inline int is_absolute_path(const char *path
)
506 return path
[0] == '/';
508 const char *make_absolute_path(const char *path
);
510 /* Read and unpack a sha1 file into memory, write memory to a sha1 file */
511 extern int sha1_object_info(const unsigned char *, unsigned long *);
512 extern void * read_sha1_file(const unsigned char *sha1
, enum object_type
*type
, unsigned long *size
);
513 extern int hash_sha1_file(const void *buf
, unsigned long len
, const char *type
, unsigned char *sha1
);
514 extern int write_sha1_file(void *buf
, unsigned long len
, const char *type
, unsigned char *return_sha1
);
515 extern int pretend_sha1_file(void *, unsigned long, enum object_type
, unsigned char *);
517 extern int check_sha1_signature(const unsigned char *sha1
, void *buf
, unsigned long size
, const char *type
);
519 extern int write_sha1_from_fd(const unsigned char *sha1
, int fd
, char *buffer
,
520 size_t bufsize
, size_t *bufposn
);
521 extern int write_sha1_to_fd(int fd
, const unsigned char *sha1
);
522 extern int move_temp_to_file(const char *tmpfile
, const char *filename
);
524 extern int has_sha1_pack(const unsigned char *sha1
, const char **ignore
);
525 extern int has_sha1_file(const unsigned char *sha1
);
527 extern int has_pack_file(const unsigned char *sha1
);
528 extern int has_pack_index(const unsigned char *sha1
);
530 extern const signed char hexval_table
[256];
531 static inline unsigned int hexval(unsigned char c
)
533 return hexval_table
[c
];
536 /* Convert to/from hex/sha1 representation */
537 #define MINIMUM_ABBREV 4
538 #define DEFAULT_ABBREV 7
540 extern int get_sha1(const char *str
, unsigned char *sha1
);
541 extern int get_sha1_with_mode(const char *str
, unsigned char *sha1
, unsigned *mode
);
542 extern int get_sha1_hex(const char *hex
, unsigned char *sha1
);
543 extern char *sha1_to_hex(const unsigned char *sha1
); /* static buffer result! */
544 extern int read_ref(const char *filename
, unsigned char *sha1
);
545 extern const char *resolve_ref(const char *path
, unsigned char *sha1
, int, int *);
546 extern int dwim_ref(const char *str
, int len
, unsigned char *sha1
, char **ref
);
547 extern int dwim_log(const char *str
, int len
, unsigned char *sha1
, char **ref
);
549 extern int refname_match(const char *abbrev_name
, const char *full_name
, const char **rules
);
550 extern const char *ref_rev_parse_rules
[];
551 extern const char *ref_fetch_rules
[];
553 extern int create_symref(const char *ref
, const char *refs_heads_master
, const char *logmsg
);
554 extern int validate_headref(const char *ref
);
556 extern int base_name_compare(const char *name1
, int len1
, int mode1
, const char *name2
, int len2
, int mode2
);
557 extern int df_name_compare(const char *name1
, int len1
, int mode1
, const char *name2
, int len2
, int mode2
);
558 extern int cache_name_compare(const char *name1
, int len1
, const char *name2
, int len2
);
560 extern void *read_object_with_reference(const unsigned char *sha1
,
561 const char *required_type
,
563 unsigned char *sha1_ret
);
565 extern struct object
*peel_to_type(const char *name
, int namelen
,
566 struct object
*o
, enum object_type
);
577 const char *show_date(unsigned long time
, int timezone
, enum date_mode mode
);
578 int parse_date(const char *date
, char *buf
, int bufsize
);
579 void datestamp(char *buf
, int bufsize
);
580 unsigned long approxidate(const char *);
581 enum date_mode
parse_date_format(const char *format
);
583 #define IDENT_WARN_ON_NO_NAME 1
584 #define IDENT_ERROR_ON_NO_NAME 2
585 #define IDENT_NO_DATE 4
586 extern const char *git_author_info(int);
587 extern const char *git_committer_info(int);
588 extern const char *fmt_ident(const char *name
, const char *email
, const char *date_str
, int);
589 extern const char *fmt_name(const char *name
, const char *email
);
592 const char *base_dir
;
600 extern int checkout_entry(struct cache_entry
*ce
, const struct checkout
*state
, char *topath
);
601 extern int has_symlink_leading_path(int len
, const char *name
);
603 extern struct alternate_object_database
{
604 struct alternate_object_database
*next
;
606 char base
[FLEX_ARRAY
]; /* more */
608 extern void prepare_alt_odb(void);
611 struct pack_window
*next
;
615 unsigned int last_used
;
616 unsigned int inuse_cnt
;
619 extern struct packed_git
{
620 struct packed_git
*next
;
621 struct pack_window
*windows
;
623 const void *index_data
;
625 uint32_t num_objects
;
630 unsigned char sha1
[20];
631 /* something like ".git/objects/pack/xxxxx.pack" */
632 char pack_name
[FLEX_ARRAY
]; /* more */
637 unsigned char sha1
[20];
638 struct packed_git
*p
;
643 unsigned char old_sha1
[20];
644 unsigned char new_sha1
[20];
646 unsigned int force
:1,
653 REF_STATUS_REJECT_NONFASTFORWARD
,
654 REF_STATUS_REJECT_NODELETE
,
656 REF_STATUS_REMOTE_REJECT
,
657 REF_STATUS_EXPECTING_REPORT
,
660 struct ref
*peer_ref
; /* when renaming */
661 char name
[FLEX_ARRAY
]; /* more */
664 #define REF_NORMAL (1u << 0)
665 #define REF_HEADS (1u << 1)
666 #define REF_TAGS (1u << 2)
668 extern struct ref
*find_ref_by_name(struct ref
*list
, const char *name
);
670 #define CONNECT_VERBOSE (1u << 0)
671 extern struct child_process
*git_connect(int fd
[2], const char *url
, const char *prog
, int flags
);
672 extern int finish_connect(struct child_process
*conn
);
673 extern int path_match(const char *path
, int nr
, char **match
);
674 extern int get_ack(int fd
, unsigned char *result_sha1
);
675 extern struct ref
**get_remote_heads(int in
, struct ref
**list
, int nr_match
, char **match
, unsigned int flags
);
676 extern int server_supports(const char *feature
);
678 extern struct packed_git
*parse_pack_index(unsigned char *sha1
);
679 extern struct packed_git
*parse_pack_index_file(const unsigned char *sha1
,
680 const char *idx_path
);
682 extern void prepare_packed_git(void);
683 extern void reprepare_packed_git(void);
684 extern void install_packed_git(struct packed_git
*pack
);
686 extern struct packed_git
*find_sha1_pack(const unsigned char *sha1
,
687 struct packed_git
*packs
);
689 extern void pack_report(void);
690 extern int open_pack_index(struct packed_git
*);
691 extern unsigned char* use_pack(struct packed_git
*, struct pack_window
**, off_t
, unsigned int *);
692 extern void close_pack_windows(struct packed_git
*);
693 extern void unuse_pack(struct pack_window
**);
694 extern struct packed_git
*add_packed_git(const char *, int, int);
695 extern const unsigned char *nth_packed_object_sha1(struct packed_git
*, uint32_t);
696 extern off_t
find_pack_entry_one(const unsigned char *, struct packed_git
*);
697 extern void *unpack_entry(struct packed_git
*, off_t
, enum object_type
*, unsigned long *);
698 extern unsigned long unpack_object_header_gently(const unsigned char *buf
, unsigned long len
, enum object_type
*type
, unsigned long *sizep
);
699 extern unsigned long get_size_from_delta(struct packed_git
*, struct pack_window
**, off_t
);
700 extern const char *packed_object_info_detail(struct packed_git
*, off_t
, unsigned long *, unsigned long *, unsigned int *, unsigned char *);
701 extern int matches_pack_name(struct packed_git
*p
, const char *name
);
703 /* Dumb servers support */
704 extern int update_server_info(int);
706 typedef int (*config_fn_t
)(const char *, const char *);
707 extern int git_default_config(const char *, const char *);
708 extern int git_config_from_file(config_fn_t fn
, const char *);
709 extern int git_config(config_fn_t fn
);
710 extern int git_parse_long(const char *, long *);
711 extern int git_parse_ulong(const char *, unsigned long *);
712 extern int git_config_int(const char *, const char *);
713 extern unsigned long git_config_ulong(const char *, const char *);
714 extern int git_config_bool_or_int(const char *, const char *, int *);
715 extern int git_config_bool(const char *, const char *);
716 extern int git_config_string(const char **, const char *, const char *);
717 extern int git_config_set(const char *, const char *);
718 extern int git_config_set_multivar(const char *, const char *, const char *, int);
719 extern int git_config_rename_section(const char *, const char *);
720 extern const char *git_etc_gitconfig(void);
721 extern int check_repository_format_version(const char *var
, const char *value
);
722 extern int git_env_bool(const char *, int);
723 extern int git_config_system(void);
724 extern int git_config_global(void);
725 extern int config_error_nonbool(const char *);
727 #define MAX_GITNAME (1000)
728 extern char git_default_email
[MAX_GITNAME
];
729 extern char git_default_name
[MAX_GITNAME
];
731 extern const char *git_commit_encoding
;
732 extern const char *git_log_output_encoding
;
734 /* IO helper functions */
735 extern void maybe_flush_or_die(FILE *, const char *);
736 extern int copy_fd(int ifd
, int ofd
);
737 extern int copy_file(const char *dst
, const char *src
, int mode
);
738 extern ssize_t
read_in_full(int fd
, void *buf
, size_t count
);
739 extern ssize_t
write_in_full(int fd
, const void *buf
, size_t count
);
740 extern void write_or_die(int fd
, const void *buf
, size_t count
);
741 extern int write_or_whine(int fd
, const void *buf
, size_t count
, const char *msg
);
742 extern int write_or_whine_pipe(int fd
, const void *buf
, size_t count
, const char *msg
);
745 extern void setup_pager(void);
746 extern const char *pager_program
;
747 extern int pager_in_use(void);
748 extern int pager_use_color
;
750 extern const char *editor_program
;
751 extern const char *excludes_file
;
754 int decode_85(char *dst
, const char *line
, int linelen
);
755 void encode_85(char *buf
, const unsigned char *data
, int bytes
);
758 extern void *alloc_blob_node(void);
759 extern void *alloc_tree_node(void);
760 extern void *alloc_commit_node(void);
761 extern void *alloc_tag_node(void);
762 extern void *alloc_object_node(void);
763 extern void alloc_report(void);
766 extern void trace_printf(const char *format
, ...);
767 extern void trace_argv_printf(const char **argv
, const char *format
, ...);
770 /* returns 1 if *dst was used */
771 extern int convert_to_git(const char *path
, const char *src
, size_t len
,
772 struct strbuf
*dst
, enum safe_crlf checksafe
);
773 extern int convert_to_working_tree(const char *path
, const char *src
, size_t len
, struct strbuf
*dst
);
776 void add_files_to_cache(int verbose
, const char *prefix
, const char **pathspec
);
779 extern int diff_auto_refresh_index
;
782 void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
786 * used by both diff and apply
788 #define WS_TRAILING_SPACE 01
789 #define WS_SPACE_BEFORE_TAB 02
790 #define WS_INDENT_WITH_NON_TAB 04
791 #define WS_CR_AT_EOL 010
792 #define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB)
793 extern unsigned whitespace_rule_cfg
;
794 extern unsigned whitespace_rule(const char *);
795 extern unsigned parse_whitespace_rule(const char *);
796 extern unsigned check_and_emit_line(const char *line
, int len
, unsigned ws_rule
,
797 FILE *stream
, const char *set
,
798 const char *reset
, const char *ws
);
799 extern char *whitespace_error_string(unsigned ws
);
800 extern int ws_fix_copy(char *, const char *, int, unsigned, int *);
803 int pathspec_match(const char **spec
, char *matched
, const char *filename
, int skiplen
);
804 int report_path_error(const char *ps_matched
, const char **pathspec
, int prefix_offset
);
805 void overlay_tree_on_cache(const char *tree_name
, const char *prefix
);
807 char *alias_lookup(const char *alias
);