Andrew's git - gitweb.git/blob

   1#ifndef COMMIT_H
   2#define COMMIT_H
   3
   4#include "object.h"
   5#include "tree.h"
   6#include "strbuf.h"
   7#include "decorate.h"
   8
   9struct commit_list {
  10        struct commit *item;
  11        struct commit_list *next;
  12};
  13
  14struct commit {
  15        struct object object;
  16        void *util;
  17        unsigned int indegree;
  18        unsigned long date;
  19        struct commit_list *parents;
  20        struct tree *tree;
  21        char *buffer;
  22};
  23
  24extern int save_commit_buffer;
  25extern const char *commit_type;
  26
  27/* While we can decorate any object with a name, it's only used for commits.. */
  28extern struct decoration name_decoration;
  29struct name_decoration {
  30        struct name_decoration *next;
  31        char name[1];
  32};
  33
  34struct commit *lookup_commit(const unsigned char *sha1);
  35struct commit *lookup_commit_reference(const unsigned char *sha1);
  36struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
  37                                              int quiet);
  38
  39int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
  40
  41int parse_commit(struct commit *item);
  42
  43struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p);
  44struct commit_list * insert_by_date(struct commit *item, struct commit_list **list);
  45
  46void free_commit_list(struct commit_list *list);
  47
  48void sort_by_date(struct commit_list **list);
  49
  50/* Commit formats */
  51enum cmit_fmt {
  52        CMIT_FMT_RAW,
  53        CMIT_FMT_MEDIUM,
  54        CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
  55        CMIT_FMT_SHORT,
  56        CMIT_FMT_FULL,
  57        CMIT_FMT_FULLER,
  58        CMIT_FMT_ONELINE,
  59        CMIT_FMT_EMAIL,
  60        CMIT_FMT_USERFORMAT,
  61
  62        CMIT_FMT_UNSPECIFIED,
  63};
  64
  65extern int non_ascii(int);
  66extern enum cmit_fmt get_commit_format(const char *arg);
  67extern void format_commit_message(const struct commit *commit,
  68                                  const void *format, struct strbuf *sb);
  69extern void pretty_print_commit(enum cmit_fmt fmt, const struct commit*,
  70                                struct strbuf *,
  71                                int abbrev, const char *subject,
  72                                const char *after_subject, enum date_mode,
  73                                int non_ascii_present);
  74
  75/** Removes the first commit from a list sorted by date, and adds all
  76 * of its parents.
  77 **/
  78struct commit *pop_most_recent_commit(struct commit_list **list,
  79                                      unsigned int mark);
  80
  81struct commit *pop_commit(struct commit_list **stack);
  82
  83void clear_commit_marks(struct commit *commit, unsigned int mark);
  84
  85/*
  86 * Performs an in-place topological sort of list supplied.
  87 *
  88 *   invariant of resulting list is:
  89 *      a reachable from b => ord(b) < ord(a)
  90 *   in addition, when lifo == 0, commits on parallel tracks are
  91 *   sorted in the dates order.
  92 */
  93void sort_in_topological_order(struct commit_list ** list, int lifo);
  94
  95struct commit_graft {
  96        unsigned char sha1[20];
  97        int nr_parent; /* < 0 if shallow commit */
  98        unsigned char parent[FLEX_ARRAY][20]; /* more */
  99};
 100
 101struct commit_graft *read_graft_line(char *buf, int len);
 102int register_commit_graft(struct commit_graft *, int);
 103int read_graft_file(const char *graft_file);
 104
 105extern struct commit_list *get_merge_bases(struct commit *rev1, struct commit *rev2, int cleanup);
 106
 107extern int register_shallow(const unsigned char *sha1);
 108extern int unregister_shallow(const unsigned char *sha1);
 109extern int write_shallow_commits(int fd, int use_pack_protocol);
 110extern int is_repository_shallow(void);
 111extern struct commit_list *get_shallow_commits(struct object_array *heads,
 112                int depth, int shallow_flag, int not_shallow_flag);
 113
 114int in_merge_bases(struct commit *, struct commit **, int);
 115
 116extern int interactive_add(int argc, const char **argv, const char *prefix);
 117extern int rerere(void);
 118
 119static inline int single_parent(struct commit *commit)
 120{
 121        return commit->parents && !commit->parents->next;
 122}
 123
 124#endif /* COMMIT_H */