Shrink "struct object" a bit
[git/git.git] / commit.h
CommitLineData
6eb8ae00
DB
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;
bd1e17e2 17 char *buffer;
6eb8ae00
DB
18};
19
60ab26de 20extern int save_commit_buffer;
6eb8ae00
DB
21extern const char *commit_type;
22
5d6ccf5c
JM
23struct commit *lookup_commit(const unsigned char *sha1);
24struct commit *lookup_commit_reference(const unsigned char *sha1);
f76412ed
JH
25struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
26 int quiet);
6eb8ae00 27
bd2c39f5
NP
28int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
29
6eb8ae00
DB
30int parse_commit(struct commit *item);
31
ac5155ef 32struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p);
f755494c 33struct commit_list * insert_by_date(struct commit *item, struct commit_list **list);
dd97f850 34
6eb8ae00
DB
35void free_commit_list(struct commit_list *list);
36
dd97f850
DB
37void sort_by_date(struct commit_list **list);
38
000182ea
LT
39/* Commit formats */
40enum cmit_fmt {
41 CMIT_FMT_RAW,
42 CMIT_FMT_MEDIUM,
43 CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
9b66ec04
LT
44 CMIT_FMT_SHORT,
45 CMIT_FMT_FULL,
ff56fe1c 46 CMIT_FMT_FULLER,
d87449c5 47 CMIT_FMT_ONELINE,
3eefc189 48 CMIT_FMT_EMAIL,
6b9c58f4
JH
49
50 CMIT_FMT_UNSPECIFIED,
000182ea
LT
51};
52
9b66ec04 53extern enum cmit_fmt get_commit_format(const char *arg);
698ce6f8 54extern 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);
e3bc7a3b 55
dd97f850
DB
56/** Removes the first commit from a list sorted by date, and adds all
57 * of its parents.
58 **/
58e28af6
DB
59struct commit *pop_most_recent_commit(struct commit_list **list,
60 unsigned int mark);
dd97f850 61
a3437b8c
JS
62struct commit *pop_commit(struct commit_list **stack);
63
f8f9c73c
JH
64void clear_commit_marks(struct commit *commit, unsigned int mark);
65
a3437b8c 66int count_parents(struct commit * commit);
ab580ace
JS
67
68/*
69 * Performs an in-place topological sort of list supplied.
70 *
6b6dcfc2 71 * Pre-conditions for sort_in_topological_order:
ab580ace
JS
72 * all commits in input list and all parents of those
73 * commits must have object.util == NULL
6b6dcfc2
FK
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:
ab580ace
JS
80 * invariant of resulting list is:
81 * a reachable from b => ord(b) < ord(a)
4c8725f1
JH
82 * in addition, when lifo == 0, commits on parallel tracks are
83 * sorted in the dates order.
ab580ace 84 */
6b6dcfc2
FK
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
4c8725f1 92void sort_in_topological_order(struct commit_list ** list, int lifo);
6b6dcfc2
FK
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);
5040f17e
JH
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
6eb8ae00 107#endif /* COMMIT_H */