Merge branch 'rs/commit-graph-use-list-count'
[git/git.git] / trailer.h
1 #ifndef TRAILER_H
2 #define TRAILER_H
3
4 #include "list.h"
5
6 struct strbuf;
7
8 enum trailer_where {
9 WHERE_DEFAULT,
10 WHERE_END,
11 WHERE_AFTER,
12 WHERE_BEFORE,
13 WHERE_START
14 };
15 enum trailer_if_exists {
16 EXISTS_DEFAULT,
17 EXISTS_ADD_IF_DIFFERENT_NEIGHBOR,
18 EXISTS_ADD_IF_DIFFERENT,
19 EXISTS_ADD,
20 EXISTS_REPLACE,
21 EXISTS_DO_NOTHING
22 };
23 enum trailer_if_missing {
24 MISSING_DEFAULT,
25 MISSING_ADD,
26 MISSING_DO_NOTHING
27 };
28
29 int trailer_set_where(enum trailer_where *item, const char *value);
30 int trailer_set_if_exists(enum trailer_if_exists *item, const char *value);
31 int trailer_set_if_missing(enum trailer_if_missing *item, const char *value);
32
33 struct trailer_info {
34 /*
35 * True if there is a blank line before the location pointed to by
36 * trailer_start.
37 */
38 int blank_line_before_trailer;
39
40 /*
41 * Pointers to the start and end of the trailer block found. If there
42 * is no trailer block found, these 2 pointers point to the end of the
43 * input string.
44 */
45 const char *trailer_start, *trailer_end;
46
47 /*
48 * Array of trailers found.
49 */
50 char **trailers;
51 size_t trailer_nr;
52 };
53
54 /*
55 * A list that represents newly-added trailers, such as those provided
56 * with the --trailer command line option of git-interpret-trailers.
57 */
58 struct new_trailer_item {
59 struct list_head list;
60
61 const char *text;
62
63 enum trailer_where where;
64 enum trailer_if_exists if_exists;
65 enum trailer_if_missing if_missing;
66 };
67
68 struct process_trailer_options {
69 int in_place;
70 int trim_empty;
71 int only_trailers;
72 int only_input;
73 int unfold;
74 int no_divider;
75 int value_only;
76 const struct strbuf *separator;
77 int (*filter)(const struct strbuf *, void *);
78 void *filter_data;
79 };
80
81 #define PROCESS_TRAILER_OPTIONS_INIT {0}
82
83 void process_trailers(const char *file,
84 const struct process_trailer_options *opts,
85 struct list_head *new_trailer_head);
86
87 void trailer_info_get(struct trailer_info *info, const char *str,
88 const struct process_trailer_options *opts);
89
90 void trailer_info_release(struct trailer_info *info);
91
92 /*
93 * Format the trailers from the commit msg "msg" into the strbuf "out".
94 * Note two caveats about "opts":
95 *
96 * - this is primarily a helper for pretty.c, and not
97 * all of the flags are supported.
98 *
99 * - this differs from process_trailers slightly in that we always format
100 * only the trailer block itself, even if the "only_trailers" option is not
101 * set.
102 */
103 void format_trailers_from_commit(struct strbuf *out, const char *msg,
104 const struct process_trailer_options *opts);
105
106 #endif /* TRAILER_H */