4 #include "git-compat-util.h"
10 #if defined(NO_DEFLATE_BOUND) || ZLIB_VERNUM < 0x1200
11 #define deflateBound(c,s) ((s) + (((s) + 7) >> 3) + (((s) + 63) >> 6) + 11)
14 #if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT)
15 #define DTYPE(de) ((de)->d_type)
25 #define DTYPE(de) DT_UNKNOWN
28 /* unknown mode (impossible combination S_IFIFO|S_IFCHR) */
29 #define S_IFINVALID 0030000
32 * A "directory link" is a link to another git directory.
34 * The value 0160000 is not normally a valid mode, and
35 * also just happens to be S_IFDIR + S_IFLNK
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..)
44 #define S_IFGITLINK 0160000
45 #define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK)
48 * Intensive research over the course of many years has shown that
49 * port 9418 is totally unused by anything else. Or
51 * Your search - "port 9418" - did not match any documents.
53 * as www.google.com puts it.
55 * This port has been properly assigned for git use by IANA:
56 * git (Assigned-9418) [I06-050728-0001].
58 * git 9418/tcp git pack transfer service
59 * git 9418/udp git pack transfer service
61 * with Linus Torvalds <torvalds@osdl.org> as the point of
62 * contact. September 2005.
64 * See http://www.iana.org/assignments/port-numbers
66 #define DEFAULT_GIT_PORT 9418
69 * Basic data structures for the directory cache
72 #define CACHE_SIGNATURE 0x44495243 /* "DIRC" */
74 unsigned int hdr_signature
;
75 unsigned int hdr_version
;
76 unsigned int hdr_entries
;
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.
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.
94 * We save the fields in big-endian order to allow using the
95 * index file over NFS transparently.
97 struct ondisk_cache_entry
{
98 struct cache_time ctime
;
99 struct cache_time mtime
;
106 unsigned char sha1
[20];
107 unsigned short flags
;
108 char name
[FLEX_ARRAY
]; /* more */
112 unsigned int ce_ctime
;
113 unsigned int ce_mtime
;
116 unsigned int ce_mode
;
119 unsigned int ce_size
;
120 unsigned int ce_flags
;
121 unsigned char sha1
[20];
122 char name
[FLEX_ARRAY
]; /* more */
125 #define CE_NAMEMASK (0x0fff)
126 #define CE_STAGEMASK (0x3000)
127 #define CE_VALID (0x8000)
128 #define CE_STAGESHIFT 12
131 #define CE_UPDATE (0x10000)
132 #define CE_REMOVE (0x20000)
134 static inline unsigned create_ce_flags(size_t len
, unsigned stage
)
136 if (len
>= CE_NAMEMASK
)
138 return (len
| (stage
<< CE_STAGESHIFT
));
141 static inline size_t ce_namelen(const struct cache_entry
*ce
)
143 size_t len
= ce
->ce_flags
& CE_NAMEMASK
;
144 if (len
< CE_NAMEMASK
)
146 return strlen(ce
->name
+ CE_NAMEMASK
) + CE_NAMEMASK
;
149 #define ce_size(ce) cache_entry_size(ce_namelen(ce))
150 #define ondisk_ce_size(ce) ondisk_cache_entry_size(ce_namelen(ce))
151 #define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT)
153 #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644)
154 static inline unsigned int create_ce_mode(unsigned int mode
)
158 if (S_ISDIR(mode
) || S_ISGITLINK(mode
))
160 return S_IFREG
| ce_permissions(mode
);
162 static inline unsigned int ce_mode_from_stat(struct cache_entry
*ce
, unsigned int mode
)
164 extern int trust_executable_bit
, has_symlinks
;
165 if (!has_symlinks
&& S_ISREG(mode
) &&
166 ce
&& S_ISLNK(ce
->ce_mode
))
168 if (!trust_executable_bit
&& S_ISREG(mode
)) {
169 if (ce
&& S_ISREG(ce
->ce_mode
))
171 return create_ce_mode(0666);
173 return create_ce_mode(mode
);
175 #define canon_mode(mode) \
176 (S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \
177 S_ISLNK(mode) ? S_IFLNK : S_ISDIR(mode) ? S_IFDIR : S_IFGITLINK)
179 #define cache_entry_size(len) ((offsetof(struct cache_entry,name) + (len) + 8) & ~7)
180 #define ondisk_cache_entry_size(len) ((offsetof(struct ondisk_cache_entry,name) + (len) + 8) & ~7)
183 struct cache_entry
**cache
;
184 unsigned int cache_nr
, cache_alloc
, cache_changed
;
185 struct cache_tree
*cache_tree
;
190 extern struct index_state the_index
;
192 #ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
193 #define active_cache (the_index.cache)
194 #define active_nr (the_index.cache_nr)
195 #define active_alloc (the_index.cache_alloc)
196 #define active_cache_changed (the_index.cache_changed)
197 #define active_cache_tree (the_index.cache_tree)
199 #define read_cache() read_index(&the_index)
200 #define read_cache_from(path) read_index_from(&the_index, (path))
201 #define write_cache(newfd, cache, entries) write_index(&the_index, (newfd))
202 #define discard_cache() discard_index(&the_index)
203 #define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen))
204 #define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option))
205 #define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos))
206 #define remove_file_from_cache(path) remove_file_from_index(&the_index, (path))
207 #define add_file_to_cache(path, verbose) add_file_to_index(&the_index, (path), (verbose))
208 #define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL)
209 #define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options))
210 #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
220 /* 5 for future expansion */
226 static inline enum object_type
object_type(unsigned int mode
)
228 return S_ISDIR(mode
) ? OBJ_TREE
:
229 S_ISGITLINK(mode
) ? OBJ_COMMIT
:
233 #define GIT_DIR_ENVIRONMENT "GIT_DIR"
234 #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
235 #define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
236 #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
237 #define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
238 #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
239 #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR"
240 #define CONFIG_ENVIRONMENT "GIT_CONFIG"
241 #define CONFIG_LOCAL_ENVIRONMENT "GIT_CONFIG_LOCAL"
242 #define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH"
243 #define GITATTRIBUTES_FILE ".gitattributes"
244 #define INFOATTRIBUTES_FILE "info/attributes"
245 #define ATTRIBUTE_MACRO_PREFIX "[attr]"
247 extern int is_bare_repository_cfg
;
248 extern int is_bare_repository(void);
249 extern int is_inside_git_dir(void);
250 extern char *git_work_tree_cfg
;
251 extern int is_inside_work_tree(void);
252 extern const char *get_git_dir(void);
253 extern char *get_object_directory(void);
254 extern char *get_refs_directory(void);
255 extern char *get_index_file(void);
256 extern char *get_graft_file(void);
257 extern int set_git_dir(const char *path
);
258 extern const char *get_git_work_tree(void);
260 #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
262 extern const char **get_pathspec(const char *prefix
, const char **pathspec
);
263 extern void setup_work_tree(void);
264 extern const char *setup_git_directory_gently(int *);
265 extern const char *setup_git_directory(void);
266 extern const char *prefix_path(const char *prefix
, int len
, const char *path
);
267 extern const char *prefix_filename(const char *prefix
, int len
, const char *path
);
268 extern void verify_filename(const char *prefix
, const char *name
);
269 extern void verify_non_filename(const char *prefix
, const char *name
);
271 #define alloc_nr(x) (((x)+16)*3/2)
274 * Realloc the buffer pointed at by variable 'x' so that it can hold
275 * at least 'nr' entries; the number of entries currently allocated
276 * is 'alloc', using the standard growing factor alloc_nr() macro.
278 * DO NOT USE any expression with side-effect for 'x' or 'alloc'.
280 #define ALLOC_GROW(x, nr, alloc) \
282 if ((nr) > alloc) { \
283 if (alloc_nr(alloc) < (nr)) \
286 alloc = alloc_nr(alloc); \
287 x = xrealloc((x), alloc * sizeof(*(x))); \
291 /* Initialize and use the cache information */
292 extern int read_index(struct index_state
*);
293 extern int read_index_from(struct index_state
*, const char *path
);
294 extern int write_index(struct index_state
*, int newfd
);
295 extern int discard_index(struct index_state
*);
296 extern int verify_path(const char *path
);
297 extern int index_name_pos(struct index_state
*, const char *name
, int namelen
);
298 #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
299 #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
300 #define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
301 #define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
302 extern int add_index_entry(struct index_state
*, struct cache_entry
*ce
, int option
);
303 extern struct cache_entry
*refresh_cache_entry(struct cache_entry
*ce
, int really
);
304 extern int remove_index_entry_at(struct index_state
*, int pos
);
305 extern int remove_file_from_index(struct index_state
*, const char *path
);
306 extern int add_file_to_index(struct index_state
*, const char *path
, int verbose
);
307 extern struct cache_entry
*make_cache_entry(unsigned int mode
, const unsigned char *sha1
, const char *path
, int stage
, int refresh
);
308 extern int ce_same_name(struct cache_entry
*a
, struct cache_entry
*b
);
310 /* do stat comparison even if CE_VALID is true */
311 #define CE_MATCH_IGNORE_VALID 01
312 /* do not check the contents but report dirty on racily-clean entries */
313 #define CE_MATCH_RACY_IS_DIRTY 02
314 extern int ie_match_stat(struct index_state
*, struct cache_entry
*, struct stat
*, unsigned int);
315 extern int ie_modified(struct index_state
*, struct cache_entry
*, struct stat
*, unsigned int);
317 extern int ce_path_match(const struct cache_entry
*ce
, const char **pathspec
);
318 extern int index_fd(unsigned char *sha1
, int fd
, struct stat
*st
, int write_object
, enum object_type type
, const char *path
);
319 extern int index_pipe(unsigned char *sha1
, int fd
, const char *type
, int write_object
);
320 extern int index_path(unsigned char *sha1
, const char *path
, struct stat
*st
, int write_object
);
321 extern void fill_stat_cache_info(struct cache_entry
*ce
, struct stat
*st
);
323 #define REFRESH_REALLY 0x0001 /* ignore_valid */
324 #define REFRESH_UNMERGED 0x0002 /* allow unmerged */
325 #define REFRESH_QUIET 0x0004 /* be quiet about it */
326 #define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */
327 extern int refresh_index(struct index_state
*, unsigned int flags
, const char **pathspec
, char *seen
);
330 struct lock_file
*next
;
334 char filename
[PATH_MAX
];
336 extern int hold_lock_file_for_update(struct lock_file
*, const char *path
, int);
337 extern int commit_lock_file(struct lock_file
*);
339 extern int hold_locked_index(struct lock_file
*, int);
340 extern int commit_locked_index(struct lock_file
*);
341 extern void set_alternate_index_output(const char *);
342 extern int close_lock_file(struct lock_file
*);
343 extern void rollback_lock_file(struct lock_file
*);
344 extern int delete_ref(const char *, const unsigned char *sha1
);
346 /* Environment bits from configuration mechanism */
347 extern int trust_executable_bit
;
348 extern int quote_path_fully
;
349 extern int has_symlinks
;
350 extern int assume_unchanged
;
351 extern int prefer_symlink_refs
;
352 extern int log_all_ref_updates
;
353 extern int warn_ambiguous_refs
;
354 extern int shared_repository
;
355 extern const char *apply_default_whitespace
;
356 extern int zlib_compression_level
;
357 extern int core_compression_level
;
358 extern int core_compression_seen
;
359 extern size_t packed_git_window_size
;
360 extern size_t packed_git_limit
;
361 extern size_t delta_base_cache_limit
;
362 extern int auto_crlf
;
364 #define GIT_REPO_VERSION 0
365 extern int repository_format_version
;
366 extern int check_repository_format(void);
368 #define MTIME_CHANGED 0x0001
369 #define CTIME_CHANGED 0x0002
370 #define OWNER_CHANGED 0x0004
371 #define MODE_CHANGED 0x0008
372 #define INODE_CHANGED 0x0010
373 #define DATA_CHANGED 0x0020
374 #define TYPE_CHANGED 0x0040
376 /* Return a statically allocated filename matching the sha1 signature */
377 extern char *mkpath(const char *fmt
, ...) __attribute__((format (printf
, 1, 2)));
378 extern char *git_path(const char *fmt
, ...) __attribute__((format (printf
, 1, 2)));
379 extern char *sha1_file_name(const unsigned char *sha1
);
380 extern char *sha1_pack_name(const unsigned char *sha1
);
381 extern char *sha1_pack_index_name(const unsigned char *sha1
);
382 extern const char *find_unique_abbrev(const unsigned char *sha1
, int);
383 extern const unsigned char null_sha1
[20];
384 static inline int is_null_sha1(const unsigned char *sha1
)
386 return !memcmp(sha1
, null_sha1
, 20);
388 static inline int hashcmp(const unsigned char *sha1
, const unsigned char *sha2
)
390 return memcmp(sha1
, sha2
, 20);
392 static inline void hashcpy(unsigned char *sha_dst
, const unsigned char *sha_src
)
394 memcpy(sha_dst
, sha_src
, 20);
396 static inline void hashclr(unsigned char *hash
)
401 int git_mkstemp(char *path
, size_t n
, const char *template);
408 int git_config_perm(const char *var
, const char *value
);
409 int adjust_shared_perm(const char *path
);
410 int safe_create_leading_directories(char *path
);
411 char *enter_repo(char *path
, int strict
);
412 static inline int is_absolute_path(const char *path
)
414 return path
[0] == '/';
416 const char *make_absolute_path(const char *path
);
418 /* Read and unpack a sha1 file into memory, write memory to a sha1 file */
419 extern int sha1_object_info(const unsigned char *, unsigned long *);
420 extern void * read_sha1_file(const unsigned char *sha1
, enum object_type
*type
, unsigned long *size
);
421 extern int hash_sha1_file(const void *buf
, unsigned long len
, const char *type
, unsigned char *sha1
);
422 extern int write_sha1_file(void *buf
, unsigned long len
, const char *type
, unsigned char *return_sha1
);
423 extern int pretend_sha1_file(void *, unsigned long, enum object_type
, unsigned char *);
425 extern int check_sha1_signature(const unsigned char *sha1
, void *buf
, unsigned long size
, const char *type
);
427 extern int write_sha1_from_fd(const unsigned char *sha1
, int fd
, char *buffer
,
428 size_t bufsize
, size_t *bufposn
);
429 extern int write_sha1_to_fd(int fd
, const unsigned char *sha1
);
430 extern int move_temp_to_file(const char *tmpfile
, const char *filename
);
432 extern int has_sha1_pack(const unsigned char *sha1
, const char **ignore
);
433 extern int has_sha1_file(const unsigned char *sha1
);
435 extern int has_pack_file(const unsigned char *sha1
);
436 extern int has_pack_index(const unsigned char *sha1
);
438 extern const signed char hexval_table
[256];
439 static inline unsigned int hexval(unsigned char c
)
441 return hexval_table
[c
];
444 /* Convert to/from hex/sha1 representation */
445 #define MINIMUM_ABBREV 4
446 #define DEFAULT_ABBREV 7
448 extern int get_sha1(const char *str
, unsigned char *sha1
);
449 extern int get_sha1_with_mode(const char *str
, unsigned char *sha1
, unsigned *mode
);
450 extern int get_sha1_hex(const char *hex
, unsigned char *sha1
);
451 extern char *sha1_to_hex(const unsigned char *sha1
); /* static buffer result! */
452 extern int read_ref(const char *filename
, unsigned char *sha1
);
453 extern const char *resolve_ref(const char *path
, unsigned char *sha1
, int, int *);
454 extern int dwim_ref(const char *str
, int len
, unsigned char *sha1
, char **ref
);
455 extern int dwim_log(const char *str
, int len
, unsigned char *sha1
, char **ref
);
457 extern int refname_match(const char *abbrev_name
, const char *full_name
, const char **rules
);
458 extern const char *ref_rev_parse_rules
[];
459 extern const char *ref_fetch_rules
[];
461 extern int create_symref(const char *ref
, const char *refs_heads_master
, const char *logmsg
);
462 extern int validate_headref(const char *ref
);
464 extern int base_name_compare(const char *name1
, int len1
, int mode1
, const char *name2
, int len2
, int mode2
);
465 extern int cache_name_compare(const char *name1
, int len1
, const char *name2
, int len2
);
467 extern void *read_object_with_reference(const unsigned char *sha1
,
468 const char *required_type
,
470 unsigned char *sha1_ret
);
481 const char *show_date(unsigned long time
, int timezone
, enum date_mode mode
);
482 int parse_date(const char *date
, char *buf
, int bufsize
);
483 void datestamp(char *buf
, int bufsize
);
484 unsigned long approxidate(const char *);
485 enum date_mode
parse_date_format(const char *format
);
487 #define IDENT_WARN_ON_NO_NAME 1
488 #define IDENT_ERROR_ON_NO_NAME 2
489 #define IDENT_NO_DATE 4
490 extern const char *git_author_info(int);
491 extern const char *git_committer_info(int);
492 extern const char *fmt_ident(const char *name
, const char *email
, const char *date_str
, int);
493 extern const char *fmt_name(const char *name
, const char *email
);
496 const char *base_dir
;
504 extern int checkout_entry(struct cache_entry
*ce
, const struct checkout
*state
, char *topath
);
505 extern int has_symlink_leading_path(const char *name
, char *last_symlink
);
507 extern struct alternate_object_database
{
508 struct alternate_object_database
*next
;
510 char base
[FLEX_ARRAY
]; /* more */
512 extern void prepare_alt_odb(void);
515 struct pack_window
*next
;
519 unsigned int last_used
;
520 unsigned int inuse_cnt
;
523 extern struct packed_git
{
524 struct packed_git
*next
;
525 struct pack_window
*windows
;
527 const void *index_data
;
529 uint32_t num_objects
;
534 unsigned char sha1
[20];
535 /* something like ".git/objects/pack/xxxxx.pack" */
536 char pack_name
[FLEX_ARRAY
]; /* more */
541 unsigned char sha1
[20];
542 struct packed_git
*p
;
547 unsigned char old_sha1
[20];
548 unsigned char new_sha1
[20];
549 unsigned int force
:1,
556 REF_STATUS_REJECT_NONFASTFORWARD
,
557 REF_STATUS_REJECT_NODELETE
,
559 REF_STATUS_REMOTE_REJECT
,
560 REF_STATUS_EXPECTING_REPORT
,
563 struct ref
*peer_ref
; /* when renaming */
564 char name
[FLEX_ARRAY
]; /* more */
567 #define REF_NORMAL (1u << 0)
568 #define REF_HEADS (1u << 1)
569 #define REF_TAGS (1u << 2)
571 extern struct ref
*find_ref_by_name(struct ref
*list
, const char *name
);
573 #define CONNECT_VERBOSE (1u << 0)
574 extern struct child_process
*git_connect(int fd
[2], const char *url
, const char *prog
, int flags
);
575 extern int finish_connect(struct child_process
*conn
);
576 extern int path_match(const char *path
, int nr
, char **match
);
577 extern int get_ack(int fd
, unsigned char *result_sha1
);
578 extern struct ref
**get_remote_heads(int in
, struct ref
**list
, int nr_match
, char **match
, unsigned int flags
);
579 extern int server_supports(const char *feature
);
581 extern struct packed_git
*parse_pack_index(unsigned char *sha1
);
582 extern struct packed_git
*parse_pack_index_file(const unsigned char *sha1
,
583 const char *idx_path
);
585 extern void prepare_packed_git(void);
586 extern void reprepare_packed_git(void);
587 extern void install_packed_git(struct packed_git
*pack
);
589 extern struct packed_git
*find_sha1_pack(const unsigned char *sha1
,
590 struct packed_git
*packs
);
592 extern void pack_report(void);
593 extern int open_pack_index(struct packed_git
*);
594 extern unsigned char* use_pack(struct packed_git
*, struct pack_window
**, off_t
, unsigned int *);
595 extern void close_pack_windows(struct packed_git
*);
596 extern void unuse_pack(struct pack_window
**);
597 extern struct packed_git
*add_packed_git(const char *, int, int);
598 extern const unsigned char *nth_packed_object_sha1(struct packed_git
*, uint32_t);
599 extern off_t
find_pack_entry_one(const unsigned char *, struct packed_git
*);
600 extern void *unpack_entry(struct packed_git
*, off_t
, enum object_type
*, unsigned long *);
601 extern unsigned long unpack_object_header_gently(const unsigned char *buf
, unsigned long len
, enum object_type
*type
, unsigned long *sizep
);
602 extern unsigned long get_size_from_delta(struct packed_git
*, struct pack_window
**, off_t
);
603 extern const char *packed_object_info_detail(struct packed_git
*, off_t
, unsigned long *, unsigned long *, unsigned int *, unsigned char *);
604 extern int matches_pack_name(struct packed_git
*p
, const char *name
);
606 /* Dumb servers support */
607 extern int update_server_info(int);
609 typedef int (*config_fn_t
)(const char *, const char *);
610 extern int git_default_config(const char *, const char *);
611 extern int git_config_from_file(config_fn_t fn
, const char *);
612 extern int git_config(config_fn_t fn
);
613 extern int git_parse_long(const char *, long *);
614 extern int git_parse_ulong(const char *, unsigned long *);
615 extern int git_config_int(const char *, const char *);
616 extern unsigned long git_config_ulong(const char *, const char *);
617 extern int git_config_bool(const char *, const char *);
618 extern int git_config_set(const char *, const char *);
619 extern int git_config_set_multivar(const char *, const char *, const char *, int);
620 extern int git_config_rename_section(const char *, const char *);
621 extern const char *git_etc_gitconfig(void);
622 extern int check_repository_format_version(const char *var
, const char *value
);
624 #define MAX_GITNAME (1000)
625 extern char git_default_email
[MAX_GITNAME
];
626 extern char git_default_name
[MAX_GITNAME
];
628 extern const char *git_commit_encoding
;
629 extern const char *git_log_output_encoding
;
631 /* IO helper functions */
632 extern void maybe_flush_or_die(FILE *, const char *);
633 extern int copy_fd(int ifd
, int ofd
);
634 extern int read_in_full(int fd
, void *buf
, size_t count
);
635 extern int write_in_full(int fd
, const void *buf
, size_t count
);
636 extern void write_or_die(int fd
, const void *buf
, size_t count
);
637 extern int write_or_whine(int fd
, const void *buf
, size_t count
, const char *msg
);
638 extern int write_or_whine_pipe(int fd
, const void *buf
, size_t count
, const char *msg
);
641 extern void setup_pager(void);
642 extern char *pager_program
;
643 extern int pager_in_use(void);
644 extern int pager_use_color
;
646 extern char *editor_program
;
647 extern char *excludes_file
;
650 int decode_85(char *dst
, const char *line
, int linelen
);
651 void encode_85(char *buf
, const unsigned char *data
, int bytes
);
654 extern void *alloc_blob_node(void);
655 extern void *alloc_tree_node(void);
656 extern void *alloc_commit_node(void);
657 extern void *alloc_tag_node(void);
658 extern void *alloc_object_node(void);
659 extern void alloc_report(void);
662 extern void trace_printf(const char *format
, ...);
663 extern void trace_argv_printf(const char **argv
, const char *format
, ...);
666 /* returns 1 if *dst was used */
667 extern int convert_to_git(const char *path
, const char *src
, size_t len
, struct strbuf
*dst
);
668 extern int convert_to_working_tree(const char *path
, const char *src
, size_t len
, struct strbuf
*dst
);
671 void add_files_to_cache(int verbose
, const char *prefix
, const char **pathspec
);
674 extern int diff_auto_refresh_index
;
677 void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
681 * used by both diff and apply
683 #define WS_TRAILING_SPACE 01
684 #define WS_SPACE_BEFORE_TAB 02
685 #define WS_INDENT_WITH_NON_TAB 04
686 #define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB)
687 extern unsigned whitespace_rule_cfg
;
688 extern unsigned whitespace_rule(const char *);
689 extern unsigned parse_whitespace_rule(const char *);
690 extern unsigned check_and_emit_line(const char *line
, int len
, unsigned ws_rule
,
691 FILE *stream
, const char *set
,
692 const char *reset
, const char *ws
);
693 extern char *whitespace_error_string(unsigned ws
);
696 int pathspec_match(const char **spec
, char *matched
, const char *filename
, int skiplen
);
697 int report_path_error(const char *ps_matched
, const char **pathspec
, int prefix_offset
);
698 void overlay_tree_on_cache(const char *tree_name
, const char *prefix
);