8 #include "gpg-interface.h"
9 #include "string-list.h"
14 struct commit_list
*next
;
22 struct commit_list
*parents
;
26 extern int save_commit_buffer
;
27 extern const char *commit_type
;
29 /* While we can decorate any object with a name, it's only used for commits.. */
30 struct name_decoration
{
31 struct name_decoration
*next
;
33 char name
[FLEX_ARRAY
];
36 enum decoration_type
{
39 DECORATION_REF_REMOTE
,
46 void add_name_decoration(enum decoration_type type
, const char *name
, struct object
*obj
);
47 const struct name_decoration
*get_name_decoration(const struct object
*obj
);
49 struct commit
*lookup_commit(const struct object_id
*oid
);
50 struct commit
*lookup_commit_reference(const struct object_id
*oid
);
51 struct commit
*lookup_commit_reference_gently(const struct object_id
*oid
,
53 struct commit
*lookup_commit_reference_by_name(const char *name
);
56 * Look up object named by "oid", dereference tag as necessary,
57 * get a commit and return it. If "oid" does not dereference to
58 * a commit, use ref_name to report an error and die.
60 struct commit
*lookup_commit_or_die(const struct object_id
*oid
, const char *ref_name
);
62 int parse_commit_buffer(struct commit
*item
, const void *buffer
, unsigned long size
);
63 int parse_commit_gently(struct commit
*item
, int quiet_on_missing
);
64 static inline int parse_commit(struct commit
*item
)
66 return parse_commit_gently(item
, 0);
68 void parse_commit_or_die(struct commit
*item
);
71 * Associate an object buffer with the commit. The ownership of the
72 * memory is handed over to the commit, and must be free()-able.
74 void set_commit_buffer(struct commit
*, void *buffer
, unsigned long size
);
77 * Get any cached object buffer associated with the commit. Returns NULL
78 * if none. The resulting memory should not be freed.
80 const void *get_cached_commit_buffer(const struct commit
*, unsigned long *size
);
83 * Get the commit's object contents, either from cache or by reading the object
84 * from disk. The resulting memory should not be modified, and must be given
85 * to unuse_commit_buffer when the caller is done.
87 const void *get_commit_buffer(const struct commit
*, unsigned long *size
);
90 * Tell the commit subsytem that we are done with a particular commit buffer.
91 * The commit and buffer should be the input and return value, respectively,
92 * from an earlier call to get_commit_buffer. The buffer may or may not be
93 * freed by this call; callers should not access the memory afterwards.
95 void unuse_commit_buffer(const struct commit
*, const void *buffer
);
98 * Free any cached object buffer associated with the commit.
100 void free_commit_buffer(struct commit
*);
103 * Disassociate any cached object buffer from the commit, but do not free it.
104 * The buffer (or NULL, if none) is returned.
106 const void *detach_commit_buffer(struct commit
*, unsigned long *sizep
);
108 /* Find beginning and length of commit subject. */
109 int find_commit_subject(const char *commit_buffer
, const char **subject
);
111 struct commit_list
*commit_list_insert(struct commit
*item
,
112 struct commit_list
**list
);
113 struct commit_list
**commit_list_append(struct commit
*commit
,
114 struct commit_list
**next
);
115 unsigned commit_list_count(const struct commit_list
*l
);
116 struct commit_list
*commit_list_insert_by_date(struct commit
*item
,
117 struct commit_list
**list
);
118 void commit_list_sort_by_date(struct commit_list
**list
);
120 /* Shallow copy of the input list */
121 struct commit_list
*copy_commit_list(struct commit_list
*list
);
123 void free_commit_list(struct commit_list
*list
);
125 struct rev_info
; /* in revision.h, it circularly uses enum cmit_fmt */
127 extern int has_non_ascii(const char *text
);
128 extern const char *logmsg_reencode(const struct commit
*commit
,
129 char **commit_encoding
,
130 const char *output_encoding
);
131 extern const char *skip_blank_lines(const char *msg
);
133 /** Removes the first commit from a list sorted by date, and adds all
136 struct commit
*pop_most_recent_commit(struct commit_list
**list
,
139 struct commit
*pop_commit(struct commit_list
**stack
);
141 void clear_commit_marks(struct commit
*commit
, unsigned int mark
);
142 void clear_commit_marks_many(int nr
, struct commit
**commit
, unsigned int mark
);
145 enum rev_sort_order
{
146 REV_SORT_IN_GRAPH_ORDER
= 0,
147 REV_SORT_BY_COMMIT_DATE
,
148 REV_SORT_BY_AUTHOR_DATE
152 * Performs an in-place topological sort of list supplied.
154 * invariant of resulting list is:
155 * a reachable from b => ord(b) < ord(a)
156 * sort_order further specifies:
157 * REV_SORT_IN_GRAPH_ORDER: try to show a commit on a single-parent
159 * REV_SORT_BY_COMMIT_DATE: show eligible commits in committer-date order.
161 void sort_in_topological_order(struct commit_list
**, enum rev_sort_order
);
163 struct commit_graft
{
164 struct object_id oid
;
165 int nr_parent
; /* < 0 if shallow commit */
166 struct object_id parent
[FLEX_ARRAY
]; /* more */
168 typedef int (*each_commit_graft_fn
)(const struct commit_graft
*, void *);
170 struct commit_graft
*read_graft_line(struct strbuf
*line
);
171 int register_commit_graft(struct commit_graft
*, int);
172 struct commit_graft
*lookup_commit_graft(const struct object_id
*oid
);
174 extern struct commit_list
*get_merge_bases(struct commit
*rev1
, struct commit
*rev2
);
175 extern struct commit_list
*get_merge_bases_many(struct commit
*one
, int n
, struct commit
**twos
);
176 extern struct commit_list
*get_octopus_merge_bases(struct commit_list
*in
);
178 /* To be used only when object flags after this call no longer matter */
179 extern struct commit_list
*get_merge_bases_many_dirty(struct commit
*one
, int n
, struct commit
**twos
);
181 /* largest positive number a signed 32-bit integer can contain */
182 #define INFINITE_DEPTH 0x7fffffff
186 extern int register_shallow(const struct object_id
*oid
);
187 extern int unregister_shallow(const struct object_id
*oid
);
188 extern int for_each_commit_graft(each_commit_graft_fn
, void *);
189 extern int is_repository_shallow(void);
190 extern struct commit_list
*get_shallow_commits(struct object_array
*heads
,
191 int depth
, int shallow_flag
, int not_shallow_flag
);
192 extern struct commit_list
*get_shallow_commits_by_rev_list(
193 int ac
, const char **av
, int shallow_flag
, int not_shallow_flag
);
194 extern void set_alternate_shallow_file(const char *path
, int override
);
195 extern int write_shallow_commits(struct strbuf
*out
, int use_pack_protocol
,
196 const struct oid_array
*extra
);
197 extern void setup_alternate_shallow(struct lock_file
*shallow_lock
,
198 const char **alternate_shallow_file
,
199 const struct oid_array
*extra
);
200 extern const char *setup_temporary_shallow(const struct oid_array
*extra
);
201 extern void advertise_shallow_grafts(int);
203 struct shallow_info
{
204 struct oid_array
*shallow
;
206 int *theirs
, nr_theirs
;
207 struct oid_array
*ref
;
209 /* for receive-pack */
210 uint32_t **used_shallow
;
211 int *need_reachability_test
;
214 struct commit
**commits
;
218 extern void prepare_shallow_info(struct shallow_info
*, struct oid_array
*);
219 extern void clear_shallow_info(struct shallow_info
*);
220 extern void remove_nonexistent_theirs_shallow(struct shallow_info
*);
221 extern void assign_shallow_commits_to_refs(struct shallow_info
*info
,
224 extern int delayed_reachability_test(struct shallow_info
*si
, int c
);
225 extern void prune_shallow(int show_only
);
226 extern struct trace_key trace_shallow
;
228 int is_descendant_of(struct commit
*, struct commit_list
*);
229 int in_merge_bases(struct commit
*, struct commit
*);
230 int in_merge_bases_many(struct commit
*, int, struct commit
**);
232 extern int interactive_add(int argc
, const char **argv
, const char *prefix
, int patch
);
233 extern int run_add_interactive(const char *revision
, const char *patch_mode
,
234 const struct pathspec
*pathspec
);
237 * Takes a list of commits and returns a new list where those
238 * have been removed that can be reached from other commits in
239 * the list. It is useful for, e.g., reducing the commits
240 * randomly thrown at the git-merge command and removing
241 * redundant commits that the user shouldn't have given to it.
243 * This function destroys the STALE bit of the commit objects'
246 extern struct commit_list
*reduce_heads(struct commit_list
*heads
);
249 * Like `reduce_heads()`, except it replaces the list. Use this
250 * instead of `foo = reduce_heads(foo);` to avoid memory leaks.
252 extern void reduce_heads_replace(struct commit_list
**heads
);
254 struct commit_extra_header
{
255 struct commit_extra_header
*next
;
261 extern void append_merge_tag_headers(struct commit_list
*parents
,
262 struct commit_extra_header
***tail
);
264 extern int commit_tree(const char *msg
, size_t msg_len
,
265 const struct object_id
*tree
,
266 struct commit_list
*parents
, struct object_id
*ret
,
267 const char *author
, const char *sign_commit
);
269 extern int commit_tree_extended(const char *msg
, size_t msg_len
,
270 const struct object_id
*tree
,
271 struct commit_list
*parents
,
272 struct object_id
*ret
, const char *author
,
273 const char *sign_commit
,
274 struct commit_extra_header
*);
276 extern struct commit_extra_header
*read_commit_extra_headers(struct commit
*, const char **);
278 extern void free_commit_extra_headers(struct commit_extra_header
*extra
);
281 * Search the commit object contents given by "msg" for the header "key".
282 * Returns a pointer to the start of the header contents, or NULL. The length
283 * of the header, up to the first newline, is returned via out_len.
285 * Note that some headers (like mergetag) may be multi-line. It is the caller's
286 * responsibility to parse further in this case!
288 extern const char *find_commit_header(const char *msg
, const char *key
,
291 /* Find the end of the log message, the right place for a new trailer. */
292 extern int ignore_non_trailer(const char *buf
, size_t len
);
294 typedef int (*each_mergetag_fn
)(struct commit
*commit
, struct commit_extra_header
*extra
,
297 extern int for_each_mergetag(each_mergetag_fn fn
, struct commit
*commit
, void *data
);
299 struct merge_remote_desc
{
300 struct object
*obj
; /* the named object, could be a tag */
301 char name
[FLEX_ARRAY
];
303 #define merge_remote_util(commit) ((struct merge_remote_desc *)((commit)->util))
304 extern void set_merge_remote_desc(struct commit
*commit
,
305 const char *name
, struct object
*obj
);
308 * Given "name" from the command line to merge, find the commit object
309 * and return it, while storing merge_remote_desc in its ->util field,
310 * to allow callers to tell if we are told to merge a tag.
312 struct commit
*get_merge_parent(const char *name
);
314 extern int parse_signed_commit(const struct commit
*commit
,
315 struct strbuf
*message
, struct strbuf
*signature
);
316 extern int remove_signature(struct strbuf
*buf
);
319 * Check the signature of the given commit. The result of the check is stored
320 * in sig->check_result, 'G' for a good signature, 'U' for a good signature
321 * from an untrusted signer, 'B' for a bad signature and 'N' for no signature
322 * at all. This may allocate memory for sig->gpg_output, sig->gpg_status,
323 * sig->signer and sig->key.
325 extern int check_commit_signature(const struct commit
*commit
, struct signature_check
*sigc
);
327 int compare_commits_by_commit_date(const void *a_
, const void *b_
, void *unused
);
329 LAST_ARG_MUST_BE_NULL
330 extern int run_commit_hook(int editor_is_used
, const char *index_file
, const char *name
, ...);
332 #endif /* COMMIT_H */