6 * from git:git-compat-util.h
11 #if defined(__GNUC__) && (__GNUC__ < 3)
14 #define FLEX_ARRAY /* empty */
29 #include <sys/param.h>
30 #include <netinet/in.h>
31 #include <sys/types.h>
36 /* On most systems <limits.h> would have given us this, but
37 * not on some systems (e.g. GNU/Hurd).
44 #define NORETURN __attribute__((__noreturn__))
48 #define __attribute__(x)
53 extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
56 static inline char* xstrdup(const char *str)
58 char *ret = strdup(str);
60 die("Out of memory, strdup failed");
64 static inline void *xmalloc(size_t size)
66 void *ret = malloc(size);
70 die("Out of memory, malloc failed");
72 memset(ret, 0xA5, size);
77 static inline void *xrealloc(void *ptr, size_t size)
79 void *ret = realloc(ptr, size);
81 ret = realloc(ptr, 1);
83 die("Out of memory, realloc failed");
87 static inline void *xcalloc(size_t nmemb, size_t size)
89 void *ret = calloc(nmemb, size);
90 if (!ret && (!nmemb || !size))
93 die("Out of memory, calloc failed");
97 static inline ssize_t xread(int fd, void *buf, size_t len)
101 nr = read(fd, buf, len);
102 if ((nr < 0) && (errno == EAGAIN || errno == EINTR))
108 static inline ssize_t xwrite(int fd, const void *buf, size_t len)
112 nr = write(fd, buf, len);
113 if ((nr < 0) && (errno == EAGAIN || errno == EINTR))
127 /* Convert to/from hex/sha1 representation */
128 #define MINIMUM_ABBREV 4
129 #define DEFAULT_ABBREV 7
131 extern const unsigned char null_sha1[20];
133 extern int sha1_object_info(const unsigned char *, char *, unsigned long *);
135 extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size);
137 extern int get_sha1(const char *str, unsigned char *sha1);
138 extern int get_sha1_hex(const char *hex, unsigned char *sha1);
139 extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
141 static inline int is_null_sha1(const unsigned char *sha1)
143 return !memcmp(sha1, null_sha1, 20);
145 static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
147 return memcmp(sha1, sha2, 20);
149 static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
151 memcpy(sha_dst, sha_src, 20);
153 static inline void hashclr(unsigned char *hash)
167 struct object_list *next;
173 struct object *ref[FLEX_ARRAY]; /* more */
176 struct object_array {
179 struct object_array_entry {
189 * The object type is stored in 3 bits.
194 unsigned type : TYPE_BITS;
195 unsigned flags : FLAG_BITS;
196 unsigned char sha1[20];
205 struct object object;
211 struct tree *lookup_tree(const unsigned char *sha1);
212 int parse_tree_buffer(struct tree *item, void *buffer, unsigned long size);
213 int parse_tree(struct tree *tree);
214 struct tree *parse_tree_indirect(const unsigned char *sha1);
216 typedef int (*read_tree_fn_t)(const unsigned char *, const char *, int, const char *, unsigned int, int);
218 extern int read_tree_recursive(struct tree *tree,
219 const char *base, int baselen,
220 int stage, const char **match,
223 extern int read_tree(struct tree *tree, int stage, const char **paths);
226 /* from git:commit.h */
230 struct commit_list *next;
234 struct object object;
237 struct commit_list *parents;
243 struct commit *lookup_commit(const unsigned char *sha1);
244 struct commit *lookup_commit_reference(const unsigned char *sha1);
245 struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
248 int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
249 int parse_commit(struct commit *item);
251 struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p);
252 struct commit_list * insert_by_date(struct commit *item, struct commit_list **list);
254 void free_commit_list(struct commit_list *list);
256 void sort_by_date(struct commit_list **list);
262 CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
269 CMIT_FMT_UNSPECIFIED,
272 extern unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *, unsigned long len, char *buf, unsigned long space, int abbrev, const char *subject, const char *after_subject, int relative_date);
275 typedef void (*topo_sort_set_fn_t)(struct commit*, void *data);
276 typedef void* (*topo_sort_get_fn_t)(struct commit*);
281 * from git:diffcore.h
284 struct diff_filespec {
285 unsigned char sha1[20];
290 int xfrm_flags; /* for use by the xfrm */
291 unsigned short mode; /* file mode */
292 unsigned sha1_valid : 1; /* if true, use sha1 and trust mode;
293 * if false, use the name and read from
296 #define DIFF_FILE_VALID(spec) (((spec)->mode) != 0)
297 unsigned should_free : 1; /* data should be free()'ed */
298 unsigned should_munmap : 1; /* data should be munmap()'ed */
301 struct diff_filepair {
302 struct diff_filespec *one;
303 struct diff_filespec *two;
304 unsigned short int score;
305 char status; /* M C R N D U (see Documentation/diff-format.txt) */
306 unsigned source_stays : 1; /* all of R/C are copies */
307 unsigned broken_pair : 1;
308 unsigned renamed_pair : 1;
311 #define DIFF_PAIR_UNMERGED(p) \
312 (!DIFF_FILE_VALID((p)->one) && !DIFF_FILE_VALID((p)->two))
314 #define DIFF_PAIR_RENAME(p) ((p)->renamed_pair)
316 #define DIFF_PAIR_BROKEN(p) \
317 ( (!DIFF_FILE_VALID((p)->one) != !DIFF_FILE_VALID((p)->two)) && \
318 ((p)->broken_pair != 0) )
320 #define DIFF_PAIR_TYPE_CHANGED(p) \
321 ((S_IFMT & (p)->one->mode) != (S_IFMT & (p)->two->mode))
323 #define DIFF_PAIR_MODE_CHANGED(p) ((p)->one->mode != (p)->two->mode)
325 extern void diff_free_filepair(struct diff_filepair *);
327 extern int diff_unmodified_pair(struct diff_filepair *);
329 struct diff_queue_struct {
330 struct diff_filepair **queue;
343 struct diff_queue_struct;
345 typedef void (*change_fn_t)(struct diff_options *options,
346 unsigned old_mode, unsigned new_mode,
347 const unsigned char *old_sha1,
348 const unsigned char *new_sha1,
349 const char *base, const char *path);
351 typedef void (*add_remove_fn_t)(struct diff_options *options,
352 int addremove, unsigned mode,
353 const unsigned char *sha1,
354 const char *base, const char *path);
356 typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
357 struct diff_options *options, void *data);
359 #define DIFF_FORMAT_RAW 0x0001
360 #define DIFF_FORMAT_DIFFSTAT 0x0002
361 #define DIFF_FORMAT_NUMSTAT 0x0004
362 #define DIFF_FORMAT_SUMMARY 0x0008
363 #define DIFF_FORMAT_PATCH 0x0010
365 /* These override all above */
366 #define DIFF_FORMAT_NAME 0x0100
367 #define DIFF_FORMAT_NAME_STATUS 0x0200
368 #define DIFF_FORMAT_CHECKDIFF 0x0400
370 /* Same as output_format = 0 but we know that -s flag was given
371 * and we should not give default value to output_format.
373 #define DIFF_FORMAT_NO_OUTPUT 0x0800
375 #define DIFF_FORMAT_CALLBACK 0x1000
377 struct diff_options {
379 const char *orderfile;
381 const char *single_follow;
382 unsigned recursive:1,
388 find_copies_harder:1,
394 int line_termination;
403 const char *stat_sep;
413 add_remove_fn_t add_remove;
414 diff_format_fn_t format_callback;
415 void *format_callback_data;
430 extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new,
431 const char *base, struct diff_options *opt);
433 extern int diff_root_tree_sha1(const unsigned char *new, const char *base,
434 struct diff_options *opt);
436 extern int git_diff_ui_config(const char *var, const char *value);
437 extern void diff_setup(struct diff_options *);
438 extern int diff_opt_parse(struct diff_options *, const char **, int);
439 extern int diff_setup_done(struct diff_options *);
442 extern void diffcore_std(struct diff_options *);
443 extern void diff_flush(struct diff_options*);
446 /* diff-raw status letters */
447 #define DIFF_STATUS_ADDED 'A'
448 #define DIFF_STATUS_COPIED 'C'
449 #define DIFF_STATUS_DELETED 'D'
450 #define DIFF_STATUS_MODIFIED 'M'
451 #define DIFF_STATUS_RENAMED 'R'
452 #define DIFF_STATUS_TYPE_CHANGED 'T'
453 #define DIFF_STATUS_UNKNOWN 'X'
454 #define DIFF_STATUS_UNMERGED 'U'
462 typedef int each_ref_fn(const char *refname, const unsigned char *sha1, int flags, void *cb_data);
463 extern int head_ref(each_ref_fn, void *);
464 extern int for_each_ref(each_ref_fn, void *);
465 extern int for_each_tag_ref(each_ref_fn, void *);
466 extern int for_each_branch_ref(each_ref_fn, void *);
467 extern int for_each_remote_ref(each_ref_fn, void *);
472 * from git:revision.h
478 typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
482 struct commit_list *commits;
483 struct object_array pending;
485 /* Basic information */
488 prune_fn_t *prune_fn;
490 /* Traversal flags */
491 unsigned int dense:1,
494 remove_empty_trees:1,
503 unpacked:1, /* see also ignore_packed below */
515 dense_combined_merges:1,
516 always_show_header:1;
519 unsigned int shown_one:1,
523 const char **ignore_packed; /* pretend objects in these are unpacked */
524 int num_ignore_packed;
527 enum cmit_fmt commit_format;
528 struct log_info *loginfo;
530 const char *mime_boundary;
531 const char *message_id;
532 const char *ref_message_id;
533 const char *add_signoff;
534 const char *extra_headers;
536 /* Filter by commit log message */
537 struct grep_opt *grep_filter;
541 unsigned long max_age;
542 unsigned long min_age;
544 /* diff info for patches and for paths limiting */
545 struct diff_options diffopt;
546 struct diff_options pruning;
548 topo_sort_set_fn_t topo_setter;
549 topo_sort_get_fn_t topo_getter;
553 extern void init_revisions(struct rev_info *revs, const char *prefix);
554 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
555 extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
557 extern void prepare_revision_walk(struct rev_info *revs);
558 extern struct commit *get_revision(struct rev_info *revs);
562 /* from git:log-tree.h */
564 int log_tree_commit(struct rev_info *, struct commit *);