reflog-walk: refactor the branch@{num} formatting
[git/git.git] / commit.h
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1#ifndef COMMIT_H
2#define COMMIT_H
3
4#include "object.h"
5#include "tree.h"
674d1727 6#include "strbuf.h"
ca135e7a 7#include "decorate.h"
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8
9struct commit_list {
10 struct commit *item;
11 struct commit_list *next;
12};
13
14struct commit {
15 struct object object;
d3ff6f55 16 void *util;
23c17d4a 17 unsigned int indegree;
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18 unsigned long date;
19 struct commit_list *parents;
20 struct tree *tree;
bd1e17e2 21 char *buffer;
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22};
23
60ab26de 24extern int save_commit_buffer;
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25extern const char *commit_type;
26
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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
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34struct commit *lookup_commit(const unsigned char *sha1);
35struct commit *lookup_commit_reference(const unsigned char *sha1);
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36struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
37 int quiet);
6eb8ae00 38
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39int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
40
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41int parse_commit(struct commit *item);
42
ac5155ef 43struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p);
65319475 44unsigned commit_list_count(const struct commit_list *l);
f755494c 45struct commit_list * insert_by_date(struct commit *item, struct commit_list **list);
dd97f850 46
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47void free_commit_list(struct commit_list *list);
48
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49void sort_by_date(struct commit_list **list);
50
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51/* Commit formats */
52enum cmit_fmt {
53 CMIT_FMT_RAW,
54 CMIT_FMT_MEDIUM,
55 CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
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56 CMIT_FMT_SHORT,
57 CMIT_FMT_FULL,
ff56fe1c 58 CMIT_FMT_FULLER,
d87449c5 59 CMIT_FMT_ONELINE,
3eefc189 60 CMIT_FMT_EMAIL,
e52a5de4 61 CMIT_FMT_USERFORMAT,
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62
63 CMIT_FMT_UNSPECIFIED,
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64};
65
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66struct pretty_print_context
67{
68 int abbrev;
69 const char *subject;
70 const char *after_subject;
71 enum date_mode date_mode;
72 int need_8bit_cte;
73};
74
4593fb84 75extern int non_ascii(int);
28e9cf65 76extern int has_non_ascii(const char *text);
4da45bef 77struct rev_info; /* in revision.h, it circularly uses enum cmit_fmt */
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78extern char *reencode_commit_message(const struct commit *commit,
79 const char **encoding_p);
4da45bef 80extern void get_commit_format(const char *arg, struct rev_info *);
674d1727 81extern void format_commit_message(const struct commit *commit,
d36f8679 82 const void *format, struct strbuf *sb,
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83 const struct pretty_print_context *context);
84extern void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit,
85 struct strbuf *sb,
86 const struct pretty_print_context *context);
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87void pp_user_info(const char *what, enum cmit_fmt fmt, struct strbuf *sb,
88 const char *line, enum date_mode dmode,
89 const char *encoding);
90void pp_title_line(enum cmit_fmt fmt,
91 const char **msg_p,
92 struct strbuf *sb,
93 const char *subject,
94 const char *after_subject,
95 const char *encoding,
267123b4 96 int need_8bit_cte);
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97void pp_remainder(enum cmit_fmt fmt,
98 const char **msg_p,
99 struct strbuf *sb,
100 int indent);
101
e3bc7a3b 102
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103/** Removes the first commit from a list sorted by date, and adds all
104 * of its parents.
105 **/
a6080a0a 106struct commit *pop_most_recent_commit(struct commit_list **list,
58e28af6 107 unsigned int mark);
dd97f850 108
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109struct commit *pop_commit(struct commit_list **stack);
110
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111void clear_commit_marks(struct commit *commit, unsigned int mark);
112
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113/*
114 * Performs an in-place topological sort of list supplied.
115 *
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116 * invariant of resulting list is:
117 * a reachable from b => ord(b) < ord(a)
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118 * in addition, when lifo == 0, commits on parallel tracks are
119 * sorted in the dates order.
ab580ace 120 */
4c8725f1 121void sort_in_topological_order(struct commit_list ** list, int lifo);
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122
123struct commit_graft {
124 unsigned char sha1[20];
ed09aef0 125 int nr_parent; /* < 0 if shallow commit */
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126 unsigned char parent[FLEX_ARRAY][20]; /* more */
127};
128
129struct commit_graft *read_graft_line(char *buf, int len);
130int register_commit_graft(struct commit_graft *, int);
45163382 131struct commit_graft *lookup_commit_graft(const unsigned char *sha1);
5040f17e 132
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133const unsigned char *lookup_replace_object(const unsigned char *sha1);
134
c0fa8255 135extern struct commit_list *get_merge_bases(struct commit *rev1, struct commit *rev2, int cleanup);
53eda89b 136extern struct commit_list *get_merge_bases_many(struct commit *one, int n, struct commit **twos, int cleanup);
5240c9d7 137extern struct commit_list *get_octopus_merge_bases(struct commit_list *in);
7c6f8aaf 138
ed09aef0 139extern int register_shallow(const unsigned char *sha1);
f53514bc 140extern int unregister_shallow(const unsigned char *sha1);
ed09aef0 141extern int write_shallow_commits(int fd, int use_pack_protocol);
f43117a6 142extern int is_repository_shallow(void);
ed09aef0 143extern struct commit_list *get_shallow_commits(struct object_array *heads,
f53514bc 144 int depth, int shallow_flag, int not_shallow_flag);
ed09aef0 145
7fcdb36e 146int is_descendant_of(struct commit *, struct commit_list *);
03840fc3 147int in_merge_bases(struct commit *, struct commit **, int);
58680165 148
3f061887 149extern int interactive_add(int argc, const char **argv, const char *prefix);
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150extern int run_add_interactive(const char *revision, const char *patch_mode,
151 const char **pathspec);
58680165 152
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153static inline int single_parent(struct commit *commit)
154{
155 return commit->parents && !commit->parents->next;
156}
157
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158struct commit_list *reduce_heads(struct commit_list *heads);
159
6eb8ae00 160#endif /* COMMIT_H */