verify-commit: add test for exit status on untrusted signature
[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"
ffb6d7d5 8#include "gpg-interface.h"
a9080475 9#include "string-list.h"
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10
11struct commit_list {
12 struct commit *item;
13 struct commit_list *next;
14};
15
16struct commit {
17 struct object object;
d3ff6f55 18 void *util;
96c4f4a3 19 unsigned int index;
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20 unsigned long date;
21 struct commit_list *parents;
22 struct tree *tree;
23};
24
60ab26de 25extern int save_commit_buffer;
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26extern const char *commit_type;
27
ca135e7a 28/* While we can decorate any object with a name, it's only used for commits.. */
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29struct name_decoration {
30 struct name_decoration *next;
eb3005e2 31 int type;
2e3dfb21 32 char name[FLEX_ARRAY];
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LT
33};
34
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35enum decoration_type {
36 DECORATION_NONE = 0,
37 DECORATION_REF_LOCAL,
38 DECORATION_REF_REMOTE,
39 DECORATION_REF_TAG,
40 DECORATION_REF_STASH,
41 DECORATION_REF_HEAD,
42 DECORATION_GRAFTED,
43};
44
45void add_name_decoration(enum decoration_type type, const char *name, struct object *obj);
2608c249 46const struct name_decoration *get_name_decoration(const struct object *obj);
662174d2 47
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48struct commit *lookup_commit(const unsigned char *sha1);
49struct commit *lookup_commit_reference(const unsigned char *sha1);
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50struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
51 int quiet);
a6fa5992 52struct commit *lookup_commit_reference_by_name(const char *name);
6eb8ae00 53
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54/*
55 * Look up object named by "sha1", dereference tag as necessary,
56 * get a commit and return it. If "sha1" does not dereference to
57 * a commit, use ref_name to report an error and die.
58 */
59struct commit *lookup_commit_or_die(const unsigned char *sha1, const char *ref_name);
60
cf7b1cad 61int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long size);
6eb8ae00 62int parse_commit(struct commit *item);
7059dccc 63void parse_commit_or_die(struct commit *item);
6eb8ae00 64
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65/*
66 * Associate an object buffer with the commit. The ownership of the
67 * memory is handed over to the commit, and must be free()-able.
68 */
8597ea3a 69void set_commit_buffer(struct commit *, void *buffer, unsigned long size);
66c2827e 70
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71/*
72 * Get any cached object buffer associated with the commit. Returns NULL
73 * if none. The resulting memory should not be freed.
74 */
8597ea3a 75const void *get_cached_commit_buffer(const struct commit *, unsigned long *size);
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76
77/*
78 * Get the commit's object contents, either from cache or by reading the object
79 * from disk. The resulting memory should not be modified, and must be given
80 * to unuse_commit_buffer when the caller is done.
81 */
8597ea3a 82const void *get_commit_buffer(const struct commit *, unsigned long *size);
152ff1cc
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83
84/*
85 * Tell the commit subsytem that we are done with a particular commit buffer.
86 * The commit and buffer should be the input and return value, respectively,
87 * from an earlier call to get_commit_buffer. The buffer may or may not be
88 * freed by this call; callers should not access the memory afterwards.
89 */
90void unuse_commit_buffer(const struct commit *, const void *buffer);
91
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92/*
93 * Free any cached object buffer associated with the commit.
94 */
95void free_commit_buffer(struct commit *);
96
97/*
98 * Disassociate any cached object buffer from the commit, but do not free it.
99 * The buffer (or NULL, if none) is returned.
100 */
8597ea3a 101const void *detach_commit_buffer(struct commit *, unsigned long *sizep);
0fb370da 102
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103/* Find beginning and length of commit subject. */
104int find_commit_subject(const char *commit_buffer, const char **subject);
105
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106struct commit_list *commit_list_insert(struct commit *item,
107 struct commit_list **list);
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108struct commit_list **commit_list_append(struct commit *commit,
109 struct commit_list **next);
65319475 110unsigned commit_list_count(const struct commit_list *l);
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111struct commit_list *commit_list_insert_by_date(struct commit *item,
112 struct commit_list **list);
113void commit_list_sort_by_date(struct commit_list **list);
dd97f850 114
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115/* Shallow copy of the input list */
116struct commit_list *copy_commit_list(struct commit_list *list);
117
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118void free_commit_list(struct commit_list *list);
119
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120/* Commit formats */
121enum cmit_fmt {
122 CMIT_FMT_RAW,
123 CMIT_FMT_MEDIUM,
124 CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
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125 CMIT_FMT_SHORT,
126 CMIT_FMT_FULL,
ff56fe1c 127 CMIT_FMT_FULLER,
d87449c5 128 CMIT_FMT_ONELINE,
3eefc189 129 CMIT_FMT_EMAIL,
e52a5de4 130 CMIT_FMT_USERFORMAT,
6b9c58f4 131
4b05548f 132 CMIT_FMT_UNSPECIFIED
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133};
134
9cba13ca 135struct pretty_print_context {
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136 /*
137 * Callers should tweak these to change the behavior of pp_* functions.
138 */
6bf13944 139 enum cmit_fmt fmt;
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140 int abbrev;
141 const char *subject;
142 const char *after_subject;
9553d2b2 143 int preserve_subject;
dd2e794a 144 enum date_mode date_mode;
f026c756 145 unsigned date_mode_explicit:1;
dd2e794a 146 int need_8bit_cte;
ddf333f6 147 char *notes_message;
8f8f5476 148 struct reflog_walk_info *reflog_info;
177b29dc 149 const char *output_encoding;
0e2913b0 150 struct string_list *mailmap;
30825178 151 int color;
a9080475 152 struct ident_split *from_ident;
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153
154 /*
155 * Fields below here are manipulated internally by pp_* functions and
156 * should not be counted on by callers.
157 */
a9080475 158 struct string_list in_body_headers;
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159};
160
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161struct userformat_want {
162 unsigned notes:1;
163};
164
28e9cf65 165extern int has_non_ascii(const char *text);
4da45bef 166struct rev_info; /* in revision.h, it circularly uses enum cmit_fmt */
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167extern const char *logmsg_reencode(const struct commit *commit,
168 char **commit_encoding,
169 const char *output_encoding);
4da45bef 170extern void get_commit_format(const char *arg, struct rev_info *);
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171extern const char *format_subject(struct strbuf *sb, const char *msg,
172 const char *line_separator);
5b163603 173extern void userformat_find_requirements(const char *fmt, struct userformat_want *w);
b9c7d6e4 174extern int commit_format_is_empty(enum cmit_fmt);
674d1727 175extern void format_commit_message(const struct commit *commit,
7f98ebc8 176 const char *format, struct strbuf *sb,
dd2e794a 177 const struct pretty_print_context *context);
10f2fbff 178extern void pretty_print_commit(struct pretty_print_context *pp,
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179 const struct commit *commit,
180 struct strbuf *sb);
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181extern void pp_commit_easy(enum cmit_fmt fmt, const struct commit *commit,
182 struct strbuf *sb);
10f2fbff 183void pp_user_info(struct pretty_print_context *pp,
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184 const char *what, struct strbuf *sb,
185 const char *line, const char *encoding);
10f2fbff 186void pp_title_line(struct pretty_print_context *pp,
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187 const char **msg_p,
188 struct strbuf *sb,
b02bd65f 189 const char *encoding,
267123b4 190 int need_8bit_cte);
10f2fbff 191void pp_remainder(struct pretty_print_context *pp,
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192 const char **msg_p,
193 struct strbuf *sb,
194 int indent);
195
e3bc7a3b 196
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197/** Removes the first commit from a list sorted by date, and adds all
198 * of its parents.
199 **/
a6080a0a 200struct commit *pop_most_recent_commit(struct commit_list **list,
58e28af6 201 unsigned int mark);
dd97f850 202
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203struct commit *pop_commit(struct commit_list **stack);
204
f8f9c73c 205void clear_commit_marks(struct commit *commit, unsigned int mark);
e895cb51 206void clear_commit_marks_many(int nr, struct commit **commit, unsigned int mark);
86a0a408 207void clear_commit_marks_for_object_array(struct object_array *a, unsigned mark);
f8f9c73c 208
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209
210enum rev_sort_order {
211 REV_SORT_IN_GRAPH_ORDER = 0,
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212 REV_SORT_BY_COMMIT_DATE,
213 REV_SORT_BY_AUTHOR_DATE
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214};
215
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216/*
217 * Performs an in-place topological sort of list supplied.
218 *
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219 * invariant of resulting list is:
220 * a reachable from b => ord(b) < ord(a)
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221 * sort_order further specifies:
222 * REV_SORT_IN_GRAPH_ORDER: try to show a commit on a single-parent
223 * chain together.
224 * REV_SORT_BY_COMMIT_DATE: show eligible commits in committer-date order.
ab580ace 225 */
08f704f2 226void sort_in_topological_order(struct commit_list **, enum rev_sort_order);
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227
228struct commit_graft {
229 unsigned char sha1[20];
ed09aef0 230 int nr_parent; /* < 0 if shallow commit */
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231 unsigned char parent[FLEX_ARRAY][20]; /* more */
232};
09d46644 233typedef int (*each_commit_graft_fn)(const struct commit_graft *, void *);
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234
235struct commit_graft *read_graft_line(char *buf, int len);
236int register_commit_graft(struct commit_graft *, int);
45163382 237struct commit_graft *lookup_commit_graft(const unsigned char *sha1);
5040f17e 238
2ce406cc
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239extern struct commit_list *get_merge_bases(struct commit *rev1, struct commit *rev2);
240extern struct commit_list *get_merge_bases_many(struct commit *one, int n, struct commit **twos);
5240c9d7 241extern struct commit_list *get_octopus_merge_bases(struct commit_list *in);
7c6f8aaf 242
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243/* To be used only when object flags after this call no longer matter */
244extern struct commit_list *get_merge_bases_many_dirty(struct commit *one, int n, struct commit **twos);
245
41ccfdd9 246/* largest positive number a signed 32-bit integer can contain */
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247#define INFINITE_DEPTH 0x7fffffff
248
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249struct sha1_array;
250struct ref;
ed09aef0 251extern int register_shallow(const unsigned char *sha1);
f53514bc 252extern int unregister_shallow(const unsigned char *sha1);
09d46644 253extern int for_each_commit_graft(each_commit_graft_fn, void *);
f43117a6 254extern int is_repository_shallow(void);
ed09aef0 255extern struct commit_list *get_shallow_commits(struct object_array *heads,
f53514bc 256 int depth, int shallow_flag, int not_shallow_flag);
069c0532 257extern void set_alternate_shallow_file(const char *path, int override);
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258extern int write_shallow_commits(struct strbuf *out, int use_pack_protocol,
259 const struct sha1_array *extra);
3125fe52 260extern void setup_alternate_shallow(struct lock_file *shallow_lock,
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261 const char **alternate_shallow_file,
262 const struct sha1_array *extra);
0179c945 263extern const char *setup_temporary_shallow(const struct sha1_array *extra);
ad491366 264extern void advertise_shallow_grafts(int);
ed09aef0 265
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266struct shallow_info {
267 struct sha1_array *shallow;
268 int *ours, nr_ours;
269 int *theirs, nr_theirs;
270 struct sha1_array *ref;
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271
272 /* for receive-pack */
273 uint32_t **used_shallow;
274 int *need_reachability_test;
275 int *reachable;
276 int *shallow_ref;
277 struct commit **commits;
278 int nr_commits;
58babfff
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279};
280
281extern void prepare_shallow_info(struct shallow_info *, struct sha1_array *);
282extern void clear_shallow_info(struct shallow_info *);
283extern void remove_nonexistent_theirs_shallow(struct shallow_info *);
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284extern void assign_shallow_commits_to_refs(struct shallow_info *info,
285 uint32_t **used,
286 int *ref_status);
0a1bc12b 287extern int delayed_reachability_test(struct shallow_info *si, int c);
eab3296c 288extern void prune_shallow(int show_only);
6aa30857 289extern struct trace_key trace_shallow;
ed09aef0 290
7fcdb36e 291int is_descendant_of(struct commit *, struct commit_list *);
a20efee9 292int in_merge_bases(struct commit *, struct commit *);
4c4b27e8 293int in_merge_bases_many(struct commit *, int, struct commit **);
58680165 294
b4bd4668 295extern int interactive_add(int argc, const char **argv, const char *prefix, int patch);
46b5139c 296extern int run_add_interactive(const char *revision, const char *patch_mode,
480ca644 297 const struct pathspec *pathspec);
58680165 298
53b2c823
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299static inline int single_parent(struct commit *commit)
300{
301 return commit->parents && !commit->parents->next;
302}
303
98cf9c3b
JH
304struct commit_list *reduce_heads(struct commit_list *heads);
305
5231c633
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306struct commit_extra_header {
307 struct commit_extra_header *next;
308 char *key;
309 char *value;
310 size_t len;
311};
312
313extern void append_merge_tag_headers(struct commit_list *parents,
314 struct commit_extra_header ***tail);
315
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316extern int commit_tree(const char *msg, size_t msg_len,
317 const unsigned char *tree,
5231c633 318 struct commit_list *parents, unsigned char *ret,
ba3c69a9 319 const char *author, const char *sign_commit);
5231c633 320
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321extern int commit_tree_extended(const char *msg, size_t msg_len,
322 const unsigned char *tree,
5231c633 323 struct commit_list *parents, unsigned char *ret,
ba3c69a9 324 const char *author, const char *sign_commit,
5231c633
JH
325 struct commit_extra_header *);
326
c871a1d1 327extern struct commit_extra_header *read_commit_extra_headers(struct commit *, const char **);
ed7a42a0 328
5231c633 329extern void free_commit_extra_headers(struct commit_extra_header *extra);
40d52ff7 330
fe6eb7f2
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331/*
332 * Search the commit object contents given by "msg" for the header "key".
333 * Returns a pointer to the start of the header contents, or NULL. The length
334 * of the header, up to the first newline, is returned via out_len.
335 *
336 * Note that some headers (like mergetag) may be multi-line. It is the caller's
337 * responsibility to parse further in this case!
338 */
339extern const char *find_commit_header(const char *msg, const char *key,
340 size_t *out_len);
341
8c384589
CC
342/* Find the end of the log message, the right place for a new trailer. */
343extern int ignore_non_trailer(struct strbuf *sb);
344
063da62b
CC
345typedef void (*each_mergetag_fn)(struct commit *commit, struct commit_extra_header *extra,
346 void *cb_data);
347
348extern void for_each_mergetag(each_mergetag_fn fn, struct commit *commit, void *data);
349
ae8e4c9c
JH
350struct merge_remote_desc {
351 struct object *obj; /* the named object, could be a tag */
352 const char *name;
353};
354#define merge_remote_util(commit) ((struct merge_remote_desc *)((commit)->util))
355
356/*
357 * Given "name" from the command line to merge, find the commit object
358 * and return it, while storing merge_remote_desc in its ->util field,
359 * to allow callers to tell if we are told to merge a tag.
360 */
361struct commit *get_merge_parent(const char *name);
362
218aa3a6 363extern int parse_signed_commit(const struct commit *commit,
0c37f1fc 364 struct strbuf *message, struct strbuf *signature);
0b05ab6f
CC
365extern int remove_signature(struct strbuf *buf);
366
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NTND
367extern void print_commit_list(struct commit_list *list,
368 const char *format_cur,
369 const char *format_last);
370
ffb6d7d5 371/*
eb307ae7
SG
372 * Check the signature of the given commit. The result of the check is stored
373 * in sig->check_result, 'G' for a good signature, 'U' for a good signature
374 * from an untrusted signer, 'B' for a bad signature and 'N' for no signature
375 * at all. This may allocate memory for sig->gpg_output, sig->gpg_status,
376 * sig->signer and sig->key.
ffb6d7d5 377 */
24d36f14 378extern void check_commit_signature(const struct commit *commit, struct signature_check *sigc);
ffb6d7d5 379
727377ff
JK
380int compare_commits_by_commit_date(const void *a_, const void *b_, void *unused);
381
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BP
382LAST_ARG_MUST_BE_NULL
383extern int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
384
6eb8ae00 385#endif /* COMMIT_H */