git instaweb: enable remote_heads
[git] / revision.h
1 #ifndef REVISION_H
2 #define REVISION_H
3
4 #include "parse-options.h"
5 #include "grep.h"
6 #include "notes.h"
7
8 #define SEEN            (1u<<0)
9 #define UNINTERESTING   (1u<<1)
10 #define TREESAME        (1u<<2)
11 #define SHOWN           (1u<<3)
12 #define TMP_MARK        (1u<<4) /* for isolated cases; clean after use */
13 #define BOUNDARY        (1u<<5)
14 #define CHILD_SHOWN     (1u<<6)
15 #define ADDED           (1u<<7) /* Parents already parsed and added? */
16 #define SYMMETRIC_LEFT  (1u<<8)
17 #define ALL_REV_FLAGS   ((1u<<9)-1)
18
19 #define DECORATE_SHORT_REFS     1
20 #define DECORATE_FULL_REFS      2
21
22 struct rev_info;
23 struct log_info;
24 struct string_list;
25
26 struct rev_info {
27         /* Starting list */
28         struct commit_list *commits;
29         struct object_array pending;
30
31         /* Parents of shown commits */
32         struct object_array boundary_commits;
33
34         /* Basic information */
35         const char *prefix;
36         const char *def;
37         void *prune_data;
38         unsigned int early_output;
39
40         /* Traversal flags */
41         unsigned int    dense:1,
42                         prune:1,
43                         no_merges:1,
44                         merges_only:1,
45                         no_walk:1,
46                         show_all:1,
47                         remove_empty_trees:1,
48                         simplify_history:1,
49                         lifo:1,
50                         topo_order:1,
51                         simplify_merges:1,
52                         simplify_by_decoration:1,
53                         tag_objects:1,
54                         tree_objects:1,
55                         blob_objects:1,
56                         edge_hint:1,
57                         limited:1,
58                         unpacked:1,
59                         boundary:2,
60                         count:1,
61                         left_right:1,
62                         rewrite_parents:1,
63                         print_parents:1,
64                         show_source:1,
65                         show_decorations:1,
66                         reverse:1,
67                         reverse_output_stage:1,
68                         cherry_pick:1,
69                         bisect:1,
70                         ancestry_path:1,
71                         first_parent_only:1;
72
73         /* Diff flags */
74         unsigned int    diff:1,
75                         full_diff:1,
76                         show_root_diff:1,
77                         no_commit_id:1,
78                         verbose_header:1,
79                         ignore_merges:1,
80                         combine_merges:1,
81                         dense_combined_merges:1,
82                         always_show_header:1;
83
84         /* Format info */
85         unsigned int    shown_one:1,
86                         show_merge:1,
87                         show_notes:1,
88                         show_notes_given:1,
89                         pretty_given:1,
90                         abbrev_commit:1,
91                         use_terminator:1,
92                         missing_newline:1,
93                         date_mode_explicit:1;
94         unsigned int    disable_stdin:1;
95
96         enum date_mode date_mode;
97
98         unsigned int    abbrev;
99         enum cmit_fmt   commit_format;
100         struct log_info *loginfo;
101         int             nr, total;
102         const char      *mime_boundary;
103         const char      *patch_suffix;
104         int             numbered_files;
105         char            *message_id;
106         struct string_list *ref_message_ids;
107         const char      *add_signoff;
108         const char      *extra_headers;
109         const char      *log_reencode;
110         const char      *subject_prefix;
111         int             no_inline;
112         int             show_log_size;
113
114         /* Filter by commit log message */
115         struct grep_opt grep_filter;
116
117         /* Display history graph */
118         struct git_graph *graph;
119
120         /* special limits */
121         int skip_count;
122         int max_count;
123         unsigned long max_age;
124         unsigned long min_age;
125
126         /* diff info for patches and for paths limiting */
127         struct diff_options diffopt;
128         struct diff_options pruning;
129
130         struct reflog_walk_info *reflog_info;
131         struct decoration children;
132         struct decoration merge_simplification;
133
134         /* notes-specific options: which refs to show */
135         struct display_notes_opt notes_opt;
136
137         /* commit counts */
138         int count_left;
139         int count_right;
140 };
141
142 #define REV_TREE_SAME           0
143 #define REV_TREE_NEW            1       /* Only new files */
144 #define REV_TREE_OLD            2       /* Only files removed */
145 #define REV_TREE_DIFFERENT      3       /* Mixed changes */
146
147 /* revision.c */
148 typedef void (*show_early_output_fn_t)(struct rev_info *, struct commit_list *);
149 extern volatile show_early_output_fn_t show_early_output;
150
151 struct setup_revision_opt {
152         const char *def;
153         void (*tweak)(struct rev_info *, struct setup_revision_opt *);
154         const char *submodule;
155 };
156
157 extern void init_revisions(struct rev_info *revs, const char *prefix);
158 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct setup_revision_opt *);
159 extern void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
160                                  const struct option *options,
161                                  const char * const usagestr[]);
162 extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
163
164 extern int prepare_revision_walk(struct rev_info *revs);
165 extern struct commit *get_revision(struct rev_info *revs);
166
167 extern void mark_parents_uninteresting(struct commit *commit);
168 extern void mark_tree_uninteresting(struct tree *tree);
169
170 struct name_path {
171         struct name_path *up;
172         int elem_len;
173         const char *elem;
174 };
175
176 char *path_name(const struct name_path *path, const char *name);
177
178 extern void add_object(struct object *obj,
179                        struct object_array *p,
180                        struct name_path *path,
181                        const char *name);
182
183 extern void add_pending_object(struct rev_info *revs, struct object *obj, const char *name);
184
185 extern void add_head_to_pending(struct rev_info *);
186
187 enum commit_action {
188         commit_ignore,
189         commit_show,
190         commit_error
191 };
192
193 extern enum commit_action get_commit_action(struct rev_info *revs, struct commit *commit);
194 extern enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit);
195
196 #endif