Andrew's git - gitweb.git/blob

   1#ifndef COMMIT_H
   2#define COMMIT_H
   3
   4#include "object.h"
   5#include "tree.h"
   6
   7struct commit_list {
   8        struct commit *item;
   9        struct commit_list *next;
  10};
  11
  12struct commit {
  13        struct object object;
  14        unsigned long date;
  15        struct commit_list *parents;
  16        struct tree *tree;
  17        char *buffer;
  18};
  19
  20extern int save_commit_buffer;
  21extern const char *commit_type;
  22
  23struct commit *lookup_commit(const unsigned char *sha1);
  24struct commit *lookup_commit_reference(const unsigned char *sha1);
  25struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
  26                                              int quiet);
  27
  28int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
  29
  30int parse_commit(struct commit *item);
  31
  32struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p);
  33struct commit_list * insert_by_date(struct commit *item, struct commit_list **list);
  34
  35void free_commit_list(struct commit_list *list);
  36
  37void sort_by_date(struct commit_list **list);
  38
  39/* Commit formats */
  40enum cmit_fmt {
  41        CMIT_FMT_RAW,
  42        CMIT_FMT_MEDIUM,
  43        CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
  44        CMIT_FMT_SHORT,
  45        CMIT_FMT_FULL,
  46        CMIT_FMT_FULLER,
  47        CMIT_FMT_ONELINE,
  48        CMIT_FMT_EMAIL,
  49
  50        CMIT_FMT_UNSPECIFIED,
  51};
  52
  53extern enum cmit_fmt get_commit_format(const char *arg);
  54extern unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *, unsigned long len, char *buf, unsigned long space, int abbrev);
  55
  56/** Removes the first commit from a list sorted by date, and adds all
  57 * of its parents.
  58 **/
  59struct commit *pop_most_recent_commit(struct commit_list **list, 
  60                                      unsigned int mark);
  61
  62struct commit *pop_commit(struct commit_list **stack);
  63
  64void clear_commit_marks(struct commit *commit, unsigned int mark);
  65
  66int count_parents(struct commit * commit);
  67
  68/*
  69 * Performs an in-place topological sort of list supplied.
  70 *
  71 * Pre-conditions for sort_in_topological_order:
  72 *   all commits in input list and all parents of those
  73 *   commits must have object.util == NULL
  74 *
  75 * Pre-conditions for sort_in_topological_order_fn:
  76 *   all commits in input list and all parents of those
  77 *   commits must have getter(commit) == NULL
  78 *
  79 * Post-conditions:
  80 *   invariant of resulting list is:
  81 *      a reachable from b => ord(b) < ord(a)
  82 *   in addition, when lifo == 0, commits on parallel tracks are
  83 *   sorted in the dates order.
  84 */
  85
  86typedef void (*topo_sort_set_fn_t)(struct commit*, void *data);
  87typedef void* (*topo_sort_get_fn_t)(struct commit*);
  88
  89void topo_sort_default_setter(struct commit *c, void *data);
  90void *topo_sort_default_getter(struct commit *c);
  91
  92void sort_in_topological_order(struct commit_list ** list, int lifo);
  93void sort_in_topological_order_fn(struct commit_list ** list, int lifo,
  94                                  topo_sort_set_fn_t setter,
  95                                  topo_sort_get_fn_t getter);
  96
  97struct commit_graft {
  98        unsigned char sha1[20];
  99        int nr_parent;
 100        unsigned char parent[FLEX_ARRAY][20]; /* more */
 101};
 102
 103struct commit_graft *read_graft_line(char *buf, int len);
 104int register_commit_graft(struct commit_graft *, int);
 105int read_graft_file(const char *graft_file);
 106
 107#endif /* COMMIT_H */