1#ifndef REVISION_H
2#define REVISION_H
3#include "parse-options.h"
5#include "grep.h"
6#include "notes.h"
7#include "commit.h"
8#define SEEN (1u<<0)
10#define UNINTERESTING (1u<<1)
11#define TREESAME (1u<<2)
12#define SHOWN (1u<<3)
13#define TMP_MARK (1u<<4) /* for isolated cases; clean after use */
14#define BOUNDARY (1u<<5)
15#define CHILD_SHOWN (1u<<6)
16#define ADDED (1u<<7) /* Parents already parsed and added? */
17#define SYMMETRIC_LEFT (1u<<8)
18#define PATCHSAME (1u<<9)
19#define BOTTOM (1u<<10)
20#define ALL_REV_FLAGS ((1u<<11)-1)
21#define DECORATE_SHORT_REFS 1
23#define DECORATE_FULL_REFS 2
24struct rev_info;
26struct log_info;
27struct string_list;
28struct saved_parents;
29struct rev_cmdline_info {
31 unsigned int nr;
32 unsigned int alloc;
33 struct rev_cmdline_entry {
34 struct object *item;
35 const char *name;
36 enum {
37 REV_CMD_REF,
38 REV_CMD_PARENTS_ONLY,
39 REV_CMD_LEFT,
40 REV_CMD_RIGHT,
41 REV_CMD_MERGE_BASE,
42 REV_CMD_REV
43 } whence;
44 unsigned flags;
45 } *rev;
46};
47#define REVISION_WALK_WALK 0
49#define REVISION_WALK_NO_WALK_SORTED 1
50#define REVISION_WALK_NO_WALK_UNSORTED 2
51struct rev_info {
53 /* Starting list */
54 struct commit_list *commits;
55 struct object_array pending;
56 /* Parents of shown commits */
58 struct object_array boundary_commits;
59 /* The end-points specified by the end user */
61 struct rev_cmdline_info cmdline;
62 /* Basic information */
64 const char *prefix;
65 const char *def;
66 struct pathspec prune_data;
67 /* topo-sort */
69 enum rev_sort_order sort_order;
70 unsigned int early_output:1,
72 ignore_missing:1;
73 /* Traversal flags */
75 unsigned int dense:1,
76 prune:1,
77 no_walk:2,
78 show_all:1,
79 remove_empty_trees:1,
80 simplify_history:1,
81 topo_order:1,
82 simplify_merges:1,
83 simplify_by_decoration:1,
84 tag_objects:1,
85 tree_objects:1,
86 blob_objects:1,
87 verify_objects:1,
88 edge_hint:1,
89 limited:1,
90 unpacked:1,
91 boundary:2,
92 count:1,
93 left_right:1,
94 left_only:1,
95 right_only:1,
96 rewrite_parents:1,
97 print_parents:1,
98 show_source:1,
99 show_decorations:1,
100 reverse:1,
101 reverse_output_stage:1,
102 cherry_pick:1,
103 cherry_mark:1,
104 bisect:1,
105 ancestry_path:1,
106 first_parent_only:1,
107 line_level_traverse:1;
108 /* Diff flags */
110 unsigned int diff:1,
111 full_diff:1,
112 show_root_diff:1,
113 no_commit_id:1,
114 verbose_header:1,
115 ignore_merges:1,
116 combine_merges:1,
117 dense_combined_merges:1,
118 always_show_header:1;
119 /* Format info */
121 unsigned int shown_one:1,
122 shown_dashes:1,
123 show_merge:1,
124 show_notes:1,
125 show_notes_given:1,
126 show_signature:1,
127 pretty_given:1,
128 abbrev_commit:1,
129 abbrev_commit_given:1,
130 use_terminator:1,
131 missing_newline:1,
132 date_mode_explicit:1,
133 preserve_subject:1;
134 unsigned int disable_stdin:1;
135 unsigned int leak_pending:1;
136 enum date_mode date_mode;
138 unsigned int abbrev;
140 enum cmit_fmt commit_format;
141 struct log_info *loginfo;
142 int nr, total;
143 const char *mime_boundary;
144 const char *patch_suffix;
145 int numbered_files;
146 int reroll_count;
147 char *message_id;
148 struct ident_split from_ident;
149 struct string_list *ref_message_ids;
150 int add_signoff;
151 const char *extra_headers;
152 const char *log_reencode;
153 const char *subject_prefix;
154 int no_inline;
155 int show_log_size;
156 struct string_list *mailmap;
157 /* Filter by commit log message */
159 struct grep_opt grep_filter;
160 /* Display history graph */
162 struct git_graph *graph;
163 /* special limits */
165 int skip_count;
166 int max_count;
167 unsigned long max_age;
168 unsigned long min_age;
169 int min_parents;
170 int max_parents;
171 /* diff info for patches and for paths limiting */
173 struct diff_options diffopt;
174 struct diff_options pruning;
175 struct reflog_walk_info *reflog_info;
177 struct decoration children;
178 struct decoration merge_simplification;
179 struct decoration treesame;
180 /* notes-specific options: which refs to show */
182 struct display_notes_opt notes_opt;
183 /* commit counts */
185 int count_left;
186 int count_right;
187 int count_same;
188 /* line level range that we are chasing */
190 struct decoration line_log_data;
191 /* copies of the parent lists, for --full-diff display */
193 struct saved_parents *saved_parents_slab;
194};
195#define REV_TREE_SAME 0
197#define REV_TREE_NEW 1 /* Only new files */
198#define REV_TREE_OLD 2 /* Only files removed */
199#define REV_TREE_DIFFERENT 3 /* Mixed changes */
200/* revision.c */
202typedef void (*show_early_output_fn_t)(struct rev_info *, struct commit_list *);
203extern volatile show_early_output_fn_t show_early_output;
204struct setup_revision_opt {
206 const char *def;
207 void (*tweak)(struct rev_info *, struct setup_revision_opt *);
208 const char *submodule;
209 int assume_dashdash;
210 unsigned revarg_opt;
211};
212extern void init_revisions(struct rev_info *revs, const char *prefix);
214extern int setup_revisions(int argc, const char **argv, struct rev_info *revs,
215 struct setup_revision_opt *);
216extern void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
217 const struct option *options,
218 const char * const usagestr[]);
219#define REVARG_CANNOT_BE_FILENAME 01
220#define REVARG_COMMITTISH 02
221extern int handle_revision_arg(const char *arg, struct rev_info *revs,
222 int flags, unsigned revarg_opt);
223extern void reset_revision_walk(void);
225extern int prepare_revision_walk(struct rev_info *revs);
226extern struct commit *get_revision(struct rev_info *revs);
227extern char *get_revision_mark(const struct rev_info *revs,
228 const struct commit *commit);
229extern void put_revision_mark(const struct rev_info *revs,
230 const struct commit *commit);
231extern void mark_parents_uninteresting(struct commit *commit);
233extern void mark_tree_uninteresting(struct tree *tree);
234struct name_path {
236 struct name_path *up;
237 int elem_len;
238 const char *elem;
239};
240char *path_name(const struct name_path *path, const char *name);
242extern void show_object_with_name(FILE *, struct object *,
244 const struct name_path *, const char *);
245extern void add_object(struct object *obj,
247 struct object_array *p,
248 struct name_path *path,
249 const char *name);
250extern void add_pending_object(struct rev_info *revs,
252 struct object *obj, const char *name);
253extern void add_pending_sha1(struct rev_info *revs,
254 const char *name, const unsigned char *sha1,
255 unsigned int flags);
256extern void add_head_to_pending(struct rev_info *);
258enum commit_action {
260 commit_ignore,
261 commit_show,
262 commit_error
263};
264extern enum commit_action get_commit_action(struct rev_info *revs,
266 struct commit *commit);
267extern enum commit_action simplify_commit(struct rev_info *revs,
268 struct commit *commit);
269enum rewrite_result {
271 rewrite_one_ok,
272 rewrite_one_noparents,
273 rewrite_one_error
274};
275typedef enum rewrite_result (*rewrite_parent_fn_t)(struct rev_info *revs, struct commit **pp);
277extern int rewrite_parents(struct rev_info *revs, struct commit *commit,
279 rewrite_parent_fn_t rewrite_parent);
280/*
282 * Save a copy of the parent list, and return the saved copy. This is
283 * used by the log machinery to retrieve the original parents when
284 * commit->parents has been modified by history simpification.
285 *
286 * You may only call save_parents() once per commit (this is checked
287 * for non-root commits).
288 *
289 * get_saved_parents() will transparently return commit->parents if
290 * history simplification is off.
291 */
292extern void save_parents(struct rev_info *revs, struct commit *commit);
293extern struct commit_list *get_saved_parents(struct rev_info *revs, const struct commit *commit);
294extern void free_saved_parents(struct rev_info *revs);
295#endif