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))
133 /* 5 for future expansion */
140 /* Convert to/from hex/sha1 representation */
141 #define MINIMUM_ABBREV 4
142 #define DEFAULT_ABBREV 7
144 extern const unsigned char null_sha1[20];
146 extern int sha1_object_info(const unsigned char *, char *, unsigned long *);
148 extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size);
150 extern int get_sha1(const char *str, unsigned char *sha1);
151 extern int get_sha1_hex(const char *hex, unsigned char *sha1);
152 extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
154 static inline int is_null_sha1(const unsigned char *sha1)
156 return !memcmp(sha1, null_sha1, 20);
158 static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
160 return memcmp(sha1, sha2, 20);
162 static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
164 memcpy(sha_dst, sha_src, 20);
166 static inline void hashclr(unsigned char *hash)
176 enum grep_pat_token {
193 struct grep_pat *next;
196 enum grep_pat_token token;
201 enum grep_expr_node {
209 struct grep_pat *pattern_list;
210 struct grep_pat **pattern_tail;
211 struct grep_expr *pattern_expression;
216 unsigned status_only:1;
217 unsigned name_only:1;
218 unsigned unmatch_name_only:1;
220 unsigned word_regexp:1;
222 unsigned all_match:1;
223 #define GREP_BINARY_DEFAULT 0
224 #define GREP_BINARY_NOMATCH 1
225 #define GREP_BINARY_TEXT 2
231 unsigned pre_context;
232 unsigned post_context;
236 extern void compile_grep_patterns(struct grep_opt *opt);
237 extern void free_grep_patterns(struct grep_opt *opt);
244 extern const char *type_names[9];
248 struct object_list *next;
254 struct object *ref[FLEX_ARRAY]; /* more */
257 struct object_array {
260 struct object_array_entry {
270 * The object type is stored in 3 bits.
275 unsigned type : TYPE_BITS;
276 unsigned flags : FLAG_BITS;
277 unsigned char sha1[20];
281 /** Returns the object, having parsed it to find out what it is. **/
282 struct object *parse_object(const unsigned char *sha1);
290 struct object object;
296 struct tree *lookup_tree(const unsigned char *sha1);
297 int parse_tree_buffer(struct tree *item, void *buffer, unsigned long size);
298 int parse_tree(struct tree *tree);
299 struct tree *parse_tree_indirect(const unsigned char *sha1);
301 typedef int (*read_tree_fn_t)(const unsigned char *, const char *, int, const char *, unsigned int, int);
303 extern int read_tree_recursive(struct tree *tree,
304 const char *base, int baselen,
305 int stage, const char **match,
308 extern int read_tree(struct tree *tree, int stage, const char **paths);
311 /* from git:commit.h */
315 struct commit_list *next;
319 struct object object;
322 struct commit_list *parents;
328 struct commit *lookup_commit(const unsigned char *sha1);
329 struct commit *lookup_commit_reference(const unsigned char *sha1);
330 struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
333 int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
334 int parse_commit(struct commit *item);
336 struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p);
337 struct commit_list * insert_by_date(struct commit *item, struct commit_list **list);
339 void free_commit_list(struct commit_list *list);
341 void sort_by_date(struct commit_list **list);
347 CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
354 CMIT_FMT_UNSPECIFIED,
357 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);
360 typedef void (*topo_sort_set_fn_t)(struct commit*, void *data);
361 typedef void* (*topo_sort_get_fn_t)(struct commit*);
369 extern const char *tag_type;
372 struct object object;
373 struct object *tagged;
375 char *signature; /* not actually implemented */
378 extern struct tag *lookup_tag(const unsigned char *sha1);
379 extern int parse_tag_buffer(struct tag *item, void *data, unsigned long size);
380 extern int parse_tag(struct tag *item);
381 extern struct object *deref_tag(struct object *, const char *, int);
385 * from git:diffcore.h
388 struct diff_filespec {
389 unsigned char sha1[20];
394 int xfrm_flags; /* for use by the xfrm */
395 unsigned short mode; /* file mode */
396 unsigned sha1_valid : 1; /* if true, use sha1 and trust mode;
397 * if false, use the name and read from
400 #define DIFF_FILE_VALID(spec) (((spec)->mode) != 0)
401 unsigned should_free : 1; /* data should be free()'ed */
402 unsigned should_munmap : 1; /* data should be munmap()'ed */
405 struct diff_filepair {
406 struct diff_filespec *one;
407 struct diff_filespec *two;
408 unsigned short int score;
409 char status; /* M C R N D U (see Documentation/diff-format.txt) */
410 unsigned source_stays : 1; /* all of R/C are copies */
411 unsigned broken_pair : 1;
412 unsigned renamed_pair : 1;
415 #define DIFF_PAIR_UNMERGED(p) \
416 (!DIFF_FILE_VALID((p)->one) && !DIFF_FILE_VALID((p)->two))
418 #define DIFF_PAIR_RENAME(p) ((p)->renamed_pair)
420 #define DIFF_PAIR_BROKEN(p) \
421 ( (!DIFF_FILE_VALID((p)->one) != !DIFF_FILE_VALID((p)->two)) && \
422 ((p)->broken_pair != 0) )
424 #define DIFF_PAIR_TYPE_CHANGED(p) \
425 ((S_IFMT & (p)->one->mode) != (S_IFMT & (p)->two->mode))
427 #define DIFF_PAIR_MODE_CHANGED(p) ((p)->one->mode != (p)->two->mode)
429 extern void diff_free_filepair(struct diff_filepair *);
431 extern int diff_unmodified_pair(struct diff_filepair *);
433 struct diff_queue_struct {
434 struct diff_filepair **queue;
447 struct diff_queue_struct;
449 typedef void (*change_fn_t)(struct diff_options *options,
450 unsigned old_mode, unsigned new_mode,
451 const unsigned char *old_sha1,
452 const unsigned char *new_sha1,
453 const char *base, const char *path);
455 typedef void (*add_remove_fn_t)(struct diff_options *options,
456 int addremove, unsigned mode,
457 const unsigned char *sha1,
458 const char *base, const char *path);
460 typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
461 struct diff_options *options, void *data);
463 #define DIFF_FORMAT_RAW 0x0001
464 #define DIFF_FORMAT_DIFFSTAT 0x0002
465 #define DIFF_FORMAT_NUMSTAT 0x0004
466 #define DIFF_FORMAT_SUMMARY 0x0008
467 #define DIFF_FORMAT_PATCH 0x0010
469 /* These override all above */
470 #define DIFF_FORMAT_NAME 0x0100
471 #define DIFF_FORMAT_NAME_STATUS 0x0200
472 #define DIFF_FORMAT_CHECKDIFF 0x0400
474 /* Same as output_format = 0 but we know that -s flag was given
475 * and we should not give default value to output_format.
477 #define DIFF_FORMAT_NO_OUTPUT 0x0800
479 #define DIFF_FORMAT_CALLBACK 0x1000
481 struct diff_options {
483 const char *orderfile;
485 const char *single_follow;
486 unsigned recursive:1,
492 find_copies_harder:1,
498 int line_termination;
507 const char *stat_sep;
517 add_remove_fn_t add_remove;
518 diff_format_fn_t format_callback;
519 void *format_callback_data;
534 extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new,
535 const char *base, struct diff_options *opt);
537 extern int diff_root_tree_sha1(const unsigned char *new, const char *base,
538 struct diff_options *opt);
540 extern int git_diff_ui_config(const char *var, const char *value);
541 extern void diff_setup(struct diff_options *);
542 extern int diff_opt_parse(struct diff_options *, const char **, int);
543 extern int diff_setup_done(struct diff_options *);
546 extern void diffcore_std(struct diff_options *);
547 extern void diff_flush(struct diff_options*);
550 /* diff-raw status letters */
551 #define DIFF_STATUS_ADDED 'A'
552 #define DIFF_STATUS_COPIED 'C'
553 #define DIFF_STATUS_DELETED 'D'
554 #define DIFF_STATUS_MODIFIED 'M'
555 #define DIFF_STATUS_RENAMED 'R'
556 #define DIFF_STATUS_TYPE_CHANGED 'T'
557 #define DIFF_STATUS_UNKNOWN 'X'
558 #define DIFF_STATUS_UNMERGED 'U'
566 typedef int each_ref_fn(const char *refname, const unsigned char *sha1, int flags, void *cb_data);
567 extern int head_ref(each_ref_fn, void *);
568 extern int for_each_ref(each_ref_fn, void *);
569 extern int for_each_tag_ref(each_ref_fn, void *);
570 extern int for_each_branch_ref(each_ref_fn, void *);
571 extern int for_each_remote_ref(each_ref_fn, void *);
576 * from git:revision.h
582 typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
586 struct commit_list *commits;
587 struct object_array pending;
589 /* Basic information */
592 prune_fn_t *prune_fn;
594 /* Traversal flags */
595 unsigned int dense:1,
598 remove_empty_trees:1,
607 unpacked:1, /* see also ignore_packed below */
619 dense_combined_merges:1,
620 always_show_header:1;
623 unsigned int shown_one:1,
627 const char **ignore_packed; /* pretend objects in these are unpacked */
628 int num_ignore_packed;
631 enum cmit_fmt commit_format;
632 struct log_info *loginfo;
634 const char *mime_boundary;
635 const char *message_id;
636 const char *ref_message_id;
637 const char *add_signoff;
638 const char *extra_headers;
640 /* Filter by commit log message */
641 struct grep_opt *grep_filter;
645 unsigned long max_age;
646 unsigned long min_age;
648 /* diff info for patches and for paths limiting */
649 struct diff_options diffopt;
650 struct diff_options pruning;
652 topo_sort_set_fn_t topo_setter;
653 topo_sort_get_fn_t topo_getter;
657 extern void init_revisions(struct rev_info *revs, const char *prefix);
658 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
659 extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
661 extern void prepare_revision_walk(struct rev_info *revs);
662 extern struct commit *get_revision(struct rev_info *revs);
666 /* from git:log-tree.h */
668 int log_tree_commit(struct rev_info *, struct commit *);