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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 | ||
9 | struct commit_list { | |
10 | struct commit *item; | |
11 | struct commit_list *next; | |
12 | }; | |
13 | ||
14 | struct 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 | ||
24 | extern int save_commit_buffer; | |
25 | extern const char *commit_type; | |
26 | ||
27 | /* While we can decorate any object with a name, it's only used for commits.. */ | |
28 | extern struct decoration name_decoration; | |
29 | struct name_decoration { | |
30 | struct name_decoration *next; | |
31 | int type; | |
32 | char name[1]; | |
33 | }; | |
34 | ||
35 | struct commit *lookup_commit(const unsigned char *sha1); | |
36 | struct commit *lookup_commit_reference(const unsigned char *sha1); | |
37 | struct commit *lookup_commit_reference_gently(const unsigned char *sha1, | |
38 | int quiet); | |
39 | struct commit *lookup_commit_reference_by_name(const char *name); | |
40 | ||
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 | */ | |
46 | struct commit *lookup_commit_or_die(const unsigned char *sha1, const char *ref_name); | |
47 | ||
48 | int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long size); | |
49 | int parse_commit(struct commit *item); | |
50 | ||
51 | /* Find beginning and length of commit subject. */ | |
52 | int find_commit_subject(const char *commit_buffer, const char **subject); | |
53 | ||
54 | struct commit_list *commit_list_insert(struct commit *item, | |
55 | struct commit_list **list); | |
56 | unsigned commit_list_count(const struct commit_list *l); | |
57 | struct commit_list *commit_list_insert_by_date(struct commit *item, | |
58 | struct commit_list **list); | |
59 | void commit_list_sort_by_date(struct commit_list **list); | |
60 | ||
61 | void free_commit_list(struct commit_list *list); | |
62 | ||
63 | /* Commit formats */ | |
64 | enum cmit_fmt { | |
65 | CMIT_FMT_RAW, | |
66 | CMIT_FMT_MEDIUM, | |
67 | CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM, | |
68 | CMIT_FMT_SHORT, | |
69 | CMIT_FMT_FULL, | |
70 | CMIT_FMT_FULLER, | |
71 | CMIT_FMT_ONELINE, | |
72 | CMIT_FMT_EMAIL, | |
73 | CMIT_FMT_USERFORMAT, | |
74 | ||
75 | CMIT_FMT_UNSPECIFIED | |
76 | }; | |
77 | ||
78 | struct pretty_print_context { | |
79 | enum cmit_fmt fmt; | |
80 | int abbrev; | |
81 | const char *subject; | |
82 | const char *after_subject; | |
83 | int preserve_subject; | |
84 | enum date_mode date_mode; | |
85 | int need_8bit_cte; | |
86 | int show_notes; | |
87 | struct reflog_walk_info *reflog_info; | |
88 | const char *output_encoding; | |
89 | }; | |
90 | ||
91 | struct userformat_want { | |
92 | unsigned notes:1; | |
93 | }; | |
94 | ||
95 | extern int has_non_ascii(const char *text); | |
96 | struct rev_info; /* in revision.h, it circularly uses enum cmit_fmt */ | |
97 | extern char *logmsg_reencode(const struct commit *commit, | |
98 | const char *output_encoding); | |
99 | extern char *reencode_commit_message(const struct commit *commit, | |
100 | const char **encoding_p); | |
101 | extern void get_commit_format(const char *arg, struct rev_info *); | |
102 | extern const char *format_subject(struct strbuf *sb, const char *msg, | |
103 | const char *line_separator); | |
104 | extern void userformat_find_requirements(const char *fmt, struct userformat_want *w); | |
105 | extern void format_commit_message(const struct commit *commit, | |
106 | const char *format, struct strbuf *sb, | |
107 | const struct pretty_print_context *context); | |
108 | extern void pretty_print_commit(const struct pretty_print_context *pp, | |
109 | const struct commit *commit, | |
110 | struct strbuf *sb); | |
111 | extern void pp_commit_easy(enum cmit_fmt fmt, const struct commit *commit, | |
112 | struct strbuf *sb); | |
113 | void pp_user_info(const struct pretty_print_context *pp, | |
114 | const char *what, struct strbuf *sb, | |
115 | const char *line, const char *encoding); | |
116 | void pp_title_line(const struct pretty_print_context *pp, | |
117 | const char **msg_p, | |
118 | struct strbuf *sb, | |
119 | const char *encoding, | |
120 | int need_8bit_cte); | |
121 | void pp_remainder(const struct pretty_print_context *pp, | |
122 | const char **msg_p, | |
123 | struct strbuf *sb, | |
124 | int indent); | |
125 | ||
126 | ||
127 | /** Removes the first commit from a list sorted by date, and adds all | |
128 | * of its parents. | |
129 | **/ | |
130 | struct commit *pop_most_recent_commit(struct commit_list **list, | |
131 | unsigned int mark); | |
132 | ||
133 | struct commit *pop_commit(struct commit_list **stack); | |
134 | ||
135 | void clear_commit_marks(struct commit *commit, unsigned int mark); | |
136 | void clear_commit_marks_for_object_array(struct object_array *a, unsigned mark); | |
137 | ||
138 | /* | |
139 | * Performs an in-place topological sort of list supplied. | |
140 | * | |
141 | * invariant of resulting list is: | |
142 | * a reachable from b => ord(b) < ord(a) | |
143 | * in addition, when lifo == 0, commits on parallel tracks are | |
144 | * sorted in the dates order. | |
145 | */ | |
146 | void sort_in_topological_order(struct commit_list ** list, int lifo); | |
147 | ||
148 | struct commit_graft { | |
149 | unsigned char sha1[20]; | |
150 | int nr_parent; /* < 0 if shallow commit */ | |
151 | unsigned char parent[FLEX_ARRAY][20]; /* more */ | |
152 | }; | |
153 | typedef int (*each_commit_graft_fn)(const struct commit_graft *, void *); | |
154 | ||
155 | struct commit_graft *read_graft_line(char *buf, int len); | |
156 | int register_commit_graft(struct commit_graft *, int); | |
157 | struct commit_graft *lookup_commit_graft(const unsigned char *sha1); | |
158 | ||
159 | extern struct commit_list *get_merge_bases(struct commit *rev1, struct commit *rev2, int cleanup); | |
160 | extern struct commit_list *get_merge_bases_many(struct commit *one, int n, struct commit **twos, int cleanup); | |
161 | extern struct commit_list *get_octopus_merge_bases(struct commit_list *in); | |
162 | ||
163 | extern int register_shallow(const unsigned char *sha1); | |
164 | extern int unregister_shallow(const unsigned char *sha1); | |
165 | extern int for_each_commit_graft(each_commit_graft_fn, void *); | |
166 | extern int is_repository_shallow(void); | |
167 | extern struct commit_list *get_shallow_commits(struct object_array *heads, | |
168 | int depth, int shallow_flag, int not_shallow_flag); | |
169 | ||
170 | int is_descendant_of(struct commit *, struct commit_list *); | |
171 | int in_merge_bases(struct commit *, struct commit **, int); | |
172 | ||
173 | extern int interactive_add(int argc, const char **argv, const char *prefix, int patch); | |
174 | extern int run_add_interactive(const char *revision, const char *patch_mode, | |
175 | const char **pathspec); | |
176 | ||
177 | static inline int single_parent(struct commit *commit) | |
178 | { | |
179 | return commit->parents && !commit->parents->next; | |
180 | } | |
181 | ||
182 | struct commit_list *reduce_heads(struct commit_list *heads); | |
183 | ||
184 | struct commit_extra_header { | |
185 | struct commit_extra_header *next; | |
186 | char *key; | |
187 | char *value; | |
188 | size_t len; | |
189 | }; | |
190 | ||
191 | extern void append_merge_tag_headers(struct commit_list *parents, | |
192 | struct commit_extra_header ***tail); | |
193 | ||
194 | extern int commit_tree(const char *msg, unsigned char *tree, | |
195 | struct commit_list *parents, unsigned char *ret, | |
196 | const char *author); | |
197 | ||
198 | extern int commit_tree_extended(const char *msg, unsigned char *tree, | |
199 | struct commit_list *parents, unsigned char *ret, | |
200 | const char *author, | |
201 | struct commit_extra_header *); | |
202 | ||
203 | extern void free_commit_extra_headers(struct commit_extra_header *extra); | |
204 | ||
205 | struct merge_remote_desc { | |
206 | struct object *obj; /* the named object, could be a tag */ | |
207 | const char *name; | |
208 | }; | |
209 | #define merge_remote_util(commit) ((struct merge_remote_desc *)((commit)->util)) | |
210 | ||
211 | /* | |
212 | * Given "name" from the command line to merge, find the commit object | |
213 | * and return it, while storing merge_remote_desc in its ->util field, | |
214 | * to allow callers to tell if we are told to merge a tag. | |
215 | */ | |
216 | struct commit *get_merge_parent(const char *name); | |
217 | ||
218 | #endif /* COMMIT_H */ |