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