Add history graph API
[git/git.git] / revision.h
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1#ifndef REVISION_H
2#define REVISION_H
3
4#define SEEN (1u<<0)
5#define UNINTERESTING (1u<<1)
7dc0fe3b 6#define TREESAME (1u<<2)
765ac8ec 7#define SHOWN (1u<<3)
7ae0b0cb 8#define TMP_MARK (1u<<4) /* for isolated cases; clean after use */
384e99a4 9#define BOUNDARY (1u<<5)
2b064697 10#define CHILD_SHOWN (1u<<6)
1b65a5aa 11#define ADDED (1u<<7) /* Parents already parsed and added? */
577ed5c2 12#define SYMMETRIC_LEFT (1u<<8)
23c17d4a 13#define TOPOSORT (1u<<9) /* In the active toposort list.. */
ae563542 14
8efdc326 15struct rev_info;
91539833 16struct log_info;
8efdc326 17
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18struct rev_info {
19 /* Starting list */
20 struct commit_list *commits;
1f1e895f 21 struct object_array pending;
ae563542 22
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23 /* Parents of shown commits */
24 struct object_array boundary_commits;
25
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26 /* Basic information */
27 const char *prefix;
8efdc326 28 void *prune_data;
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29 unsigned int early_output;
30
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31 /* Traversal flags */
32 unsigned int dense:1,
53b2c823 33 prune:1,
765ac8ec 34 no_merges:1,
ba1d4505 35 no_walk:1,
3131b713 36 show_all:1,
ae563542 37 remove_empty_trees:1,
9202434c 38 simplify_history:1,
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39 lifo:1,
40 topo_order:1,
41 tag_objects:1,
42 tree_objects:1,
43 blob_objects:1,
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44 edge_hint:1,
45 limited:1,
106d710b 46 unpacked:1, /* see also ignore_packed below */
86ab4906 47 boundary:2,
74bd9029 48 left_right:1,
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49 rewrite_parents:1,
50 print_parents:1,
0053e902 51 reverse:1,
d7a17cad 52 cherry_pick:1,
0053e902 53 first_parent_only:1;
ae563542 54
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55 /* Diff flags */
56 unsigned int diff:1,
57 full_diff:1,
58 show_root_diff:1,
59 no_commit_id:1,
60 verbose_header:1,
61 ignore_merges:1,
62 combine_merges:1,
63 dense_combined_merges:1,
64 always_show_header:1;
65
66 /* Format info */
91539833 67 unsigned int shown_one:1,
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68 abbrev_commit:1,
69 use_terminator:1;
a7b02ccf 70 enum date_mode date_mode;
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71
72 const char **ignore_packed; /* pretend objects in these are unpacked */
73 int num_ignore_packed;
74
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75 unsigned int abbrev;
76 enum cmit_fmt commit_format;
91539833 77 struct log_info *loginfo;
596524b3 78 int nr, total;
698ce6f8 79 const char *mime_boundary;
e1a37346 80 char *message_id;
d1566f78 81 const char *ref_message_id;
cf2251b6 82 const char *add_signoff;
20ff0680 83 const char *extra_headers;
52883fbd 84 const char *log_reencode;
2d9e4a47 85 const char *subject_prefix;
c112f689 86 int no_inline;
9fa3465d 87 int show_log_size;
cd2bdc53 88
8ecae9b0 89 /* Filter by commit log message */
2d10c555 90 struct grep_opt *grep_filter;
8ecae9b0 91
ae563542 92 /* special limits */
d5db6c9e 93 int skip_count;
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94 int max_count;
95 unsigned long max_age;
96 unsigned long min_age;
8efdc326 97
cd2bdc53 98 /* diff info for patches and for paths limiting */
c4e05b1a 99 struct diff_options diffopt;
cd2bdc53 100 struct diff_options pruning;
c4e05b1a 101
8860fd42 102 struct reflog_walk_info *reflog_info;
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103};
104
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105#define REV_TREE_SAME 0
106#define REV_TREE_NEW 1
107#define REV_TREE_DIFFERENT 2
108
ae563542 109/* revision.c */
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110typedef void (*show_early_output_fn_t)(struct rev_info *, struct commit_list *);
111volatile show_early_output_fn_t show_early_output;
8efdc326 112
db6296a5 113extern void init_revisions(struct rev_info *revs, const char *prefix);
a4a88b2b 114extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
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115extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
116
cc0e6c5a 117extern int prepare_revision_walk(struct rev_info *revs);
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118extern struct commit *get_revision(struct rev_info *revs);
119
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120extern void mark_parents_uninteresting(struct commit *commit);
121extern void mark_tree_uninteresting(struct tree *tree);
122
123struct name_path {
124 struct name_path *up;
125 int elem_len;
126 const char *elem;
127};
128
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129extern void add_object(struct object *obj,
130 struct object_array *p,
131 struct name_path *path,
132 const char *name);
133
134extern void add_pending_object(struct rev_info *revs, struct object *obj, const char *name);
ae563542 135
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136extern void add_head_to_pending(struct rev_info *);
137
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138enum commit_action {
139 commit_ignore,
140 commit_show,
141 commit_error
142};
143
144extern enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit);
145
ae563542 146#endif