Merge branch 'rs/commit-list-sort-in-batch'
[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;
eb3005e2 31 int type;
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32 char name[1];
33};
34
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35struct commit *lookup_commit(const unsigned char *sha1);
36struct commit *lookup_commit_reference(const unsigned char *sha1);
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37struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
38 int quiet);
a6fa5992 39struct commit *lookup_commit_reference_by_name(const char *name);
6eb8ae00 40
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41/*
42 * Look up object named by "sha1", dereference tag as necessary,
43 * get a commit and return it. If "sha1" does not dereference to
44 * a commit, use ref_name to report an error and die.
45 */
46struct commit *lookup_commit_or_die(const unsigned char *sha1, const char *ref_name);
47
cf7b1cad 48int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long size);
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49int parse_commit(struct commit *item);
50
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51/* Find beginning and length of commit subject. */
52int find_commit_subject(const char *commit_buffer, const char **subject);
53
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54struct commit_list *commit_list_insert(struct commit *item,
55 struct commit_list **list);
65319475 56unsigned commit_list_count(const struct commit_list *l);
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57struct commit_list *commit_list_insert_by_date(struct commit *item,
58 struct commit_list **list);
59void commit_list_sort_by_date(struct commit_list **list);
fbc08ea1 60void commit_list_reverse(struct commit_list **list_p);
dd97f850 61
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62void free_commit_list(struct commit_list *list);
63
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64/* Commit formats */
65enum cmit_fmt {
66 CMIT_FMT_RAW,
67 CMIT_FMT_MEDIUM,
68 CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
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69 CMIT_FMT_SHORT,
70 CMIT_FMT_FULL,
ff56fe1c 71 CMIT_FMT_FULLER,
d87449c5 72 CMIT_FMT_ONELINE,
3eefc189 73 CMIT_FMT_EMAIL,
e52a5de4 74 CMIT_FMT_USERFORMAT,
6b9c58f4 75
4b05548f 76 CMIT_FMT_UNSPECIFIED
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77};
78
9cba13ca 79struct pretty_print_context {
6bf13944 80 enum cmit_fmt fmt;
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81 int abbrev;
82 const char *subject;
83 const char *after_subject;
9553d2b2 84 int preserve_subject;
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85 enum date_mode date_mode;
86 int need_8bit_cte;
66b2ed09 87 int show_notes;
8f8f5476 88 struct reflog_walk_info *reflog_info;
177b29dc 89 const char *output_encoding;
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90};
91
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92struct userformat_want {
93 unsigned notes:1;
94};
95
28e9cf65 96extern int has_non_ascii(const char *text);
4da45bef 97struct rev_info; /* in revision.h, it circularly uses enum cmit_fmt */
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98extern char *logmsg_reencode(const struct commit *commit,
99 const char *output_encoding);
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100extern char *reencode_commit_message(const struct commit *commit,
101 const char **encoding_p);
4da45bef 102extern void get_commit_format(const char *arg, struct rev_info *);
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103extern const char *format_subject(struct strbuf *sb, const char *msg,
104 const char *line_separator);
5b163603 105extern void userformat_find_requirements(const char *fmt, struct userformat_want *w);
674d1727 106extern void format_commit_message(const struct commit *commit,
7f98ebc8 107 const char *format, struct strbuf *sb,
dd2e794a 108 const struct pretty_print_context *context);
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109extern void pretty_print_commit(const struct pretty_print_context *pp,
110 const struct commit *commit,
111 struct strbuf *sb);
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112extern void pp_commit_easy(enum cmit_fmt fmt, const struct commit *commit,
113 struct strbuf *sb);
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114void pp_user_info(const struct pretty_print_context *pp,
115 const char *what, struct strbuf *sb,
116 const char *line, const char *encoding);
117void pp_title_line(const struct pretty_print_context *pp,
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118 const char **msg_p,
119 struct strbuf *sb,
b02bd65f 120 const char *encoding,
267123b4 121 int need_8bit_cte);
6bf13944 122void pp_remainder(const struct pretty_print_context *pp,
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123 const char **msg_p,
124 struct strbuf *sb,
125 int indent);
126
e3bc7a3b 127
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128/** Removes the first commit from a list sorted by date, and adds all
129 * of its parents.
130 **/
a6080a0a 131struct commit *pop_most_recent_commit(struct commit_list **list,
58e28af6 132 unsigned int mark);
dd97f850 133
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134struct commit *pop_commit(struct commit_list **stack);
135
f8f9c73c 136void clear_commit_marks(struct commit *commit, unsigned int mark);
86a0a408 137void clear_commit_marks_for_object_array(struct object_array *a, unsigned mark);
f8f9c73c 138
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139/*
140 * Performs an in-place topological sort of list supplied.
141 *
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142 * invariant of resulting list is:
143 * a reachable from b => ord(b) < ord(a)
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144 * in addition, when lifo == 0, commits on parallel tracks are
145 * sorted in the dates order.
ab580ace 146 */
4c8725f1 147void sort_in_topological_order(struct commit_list ** list, int lifo);
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148
149struct commit_graft {
150 unsigned char sha1[20];
ed09aef0 151 int nr_parent; /* < 0 if shallow commit */
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152 unsigned char parent[FLEX_ARRAY][20]; /* more */
153};
09d46644 154typedef int (*each_commit_graft_fn)(const struct commit_graft *, void *);
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155
156struct commit_graft *read_graft_line(char *buf, int len);
157int register_commit_graft(struct commit_graft *, int);
45163382 158struct commit_graft *lookup_commit_graft(const unsigned char *sha1);
5040f17e 159
c0fa8255 160extern struct commit_list *get_merge_bases(struct commit *rev1, struct commit *rev2, int cleanup);
53eda89b 161extern struct commit_list *get_merge_bases_many(struct commit *one, int n, struct commit **twos, int cleanup);
5240c9d7 162extern struct commit_list *get_octopus_merge_bases(struct commit_list *in);
7c6f8aaf 163
ed09aef0 164extern int register_shallow(const unsigned char *sha1);
f53514bc 165extern int unregister_shallow(const unsigned char *sha1);
09d46644 166extern int for_each_commit_graft(each_commit_graft_fn, void *);
f43117a6 167extern int is_repository_shallow(void);
ed09aef0 168extern struct commit_list *get_shallow_commits(struct object_array *heads,
f53514bc 169 int depth, int shallow_flag, int not_shallow_flag);
ed09aef0 170
7fcdb36e 171int is_descendant_of(struct commit *, struct commit_list *);
03840fc3 172int in_merge_bases(struct commit *, struct commit **, int);
58680165 173
b4bd4668 174extern int interactive_add(int argc, const char **argv, const char *prefix, int patch);
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175extern int run_add_interactive(const char *revision, const char *patch_mode,
176 const char **pathspec);
58680165 177
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178static inline int single_parent(struct commit *commit)
179{
180 return commit->parents && !commit->parents->next;
181}
182
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183struct commit_list *reduce_heads(struct commit_list *heads);
184
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185struct commit_extra_header {
186 struct commit_extra_header *next;
187 char *key;
188 char *value;
189 size_t len;
190};
191
192extern void append_merge_tag_headers(struct commit_list *parents,
193 struct commit_extra_header ***tail);
194
13f8b72d 195extern int commit_tree(const struct strbuf *msg, unsigned char *tree,
5231c633 196 struct commit_list *parents, unsigned char *ret,
ba3c69a9 197 const char *author, const char *sign_commit);
5231c633 198
f35ccd9b 199extern int commit_tree_extended(const struct strbuf *msg, unsigned char *tree,
5231c633 200 struct commit_list *parents, unsigned char *ret,
ba3c69a9 201 const char *author, const char *sign_commit,
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202 struct commit_extra_header *);
203
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204extern struct commit_extra_header *read_commit_extra_headers(struct commit *, const char **);
205extern struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **);
ed7a42a0 206
5231c633 207extern void free_commit_extra_headers(struct commit_extra_header *extra);
40d52ff7 208
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209struct merge_remote_desc {
210 struct object *obj; /* the named object, could be a tag */
211 const char *name;
212};
213#define merge_remote_util(commit) ((struct merge_remote_desc *)((commit)->util))
214
215/*
216 * Given "name" from the command line to merge, find the commit object
217 * and return it, while storing merge_remote_desc in its ->util field,
218 * to allow callers to tell if we are told to merge a tag.
219 */
220struct commit *get_merge_parent(const char *name);
221
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222extern int parse_signed_commit(const unsigned char *sha1,
223 struct strbuf *message, struct strbuf *signature);
6eb8ae00 224#endif /* COMMIT_H */