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 RANGE_UPDATE    (1u<<9) /* for line level traverse */
  18 #define NEED_PRINT      (1u<<10)
  19 #define NONTRIVIAL_MERGE        (1u<<11)
  20 #define EVIL_MERGE      (1u<<12)
  21 #define ALL_REV_FLAGS   ((1u<<13)-1)
  22
  23 #define DECORATE_SHORT_REFS     1
  24 #define DECORATE_FULL_REFS      2
  25
  26 struct rev_info;
  27 struct log_info;
  28 struct string_list;
  29
  30 struct rev_info {
  31         /* Starting list */
  32         struct commit_list *commits;
  33         struct object_array pending;
  34
  35         /* Parents of shown commits */
  36         struct object_array boundary_commits;
  37
  38         /* Basic information */
  39         const char *prefix;
  40         const char *def;
  41         void *prune_data;
  42         unsigned int early_output;
  43
  44         /* Traversal flags */
  45         unsigned int    dense:1,
  46                         prune:1,
  47                         no_merges:1,
  48                         merges_only:1,
  49                         no_walk:1,
  50                         show_all:1,
  51                         remove_empty_trees:1,
  52                         simplify_history:1,
  53                         lifo:1,
  54                         topo_order:1,
  55                         simplify_merges:1,
  56                         simplify_by_decoration:1,
  57                         tag_objects:1,
  58                         tree_objects:1,
  59                         blob_objects:1,
  60                         edge_hint:1,
  61                         limited:1,
  62                         unpacked:1,
  63                         boundary:2,
  64                         count:1,
  65                         left_right:1,
  66                         rewrite_parents:1,
  67                         print_parents:1,
  68                         show_source:1,
  69                         show_decorations:1,
  70                         reverse:1,
  71                         reverse_output_stage:1,
  72                         cherry_pick:1,
  73                         bisect:1,
  74                         ancestry_path:1,
  75                         first_parent_only:1,
  76                         line_level_traverse:1,
  77                         full_line_diff:1;
  78
  79         /* Diff flags */
  80         unsigned int    diff:1,
  81                         full_diff:1,
  82                         show_root_diff:1,
  83                         no_commit_id:1,
  84                         verbose_header:1,
  85                         ignore_merges:1,
  86                         combine_merges:1,
  87                         dense_combined_merges:1,
  88                         always_show_header:1;
  89
  90         /* Format info */
  91         unsigned int    shown_one:1,
  92                         show_merge:1,
  93                         show_notes:1,
  94                         show_notes_given:1,
  95                         pretty_given:1,
  96                         abbrev_commit:1,
  97                         use_terminator:1,
  98                         missing_newline:1,
  99                         date_mode_explicit:1;
 100         unsigned int    disable_stdin:1;
 101
 102         enum date_mode date_mode;
 103
 104         unsigned int    abbrev;
 105         enum cmit_fmt   commit_format;
 106         struct log_info *loginfo;
 107         int             nr, total;
 108         const char      *mime_boundary;
 109         const char      *patch_suffix;
 110         int             numbered_files;
 111         char            *message_id;
 112         struct string_list *ref_message_ids;
 113         const char      *add_signoff;
 114         const char      *extra_headers;
 115         const char      *log_reencode;
 116         const char      *subject_prefix;
 117         int             no_inline;
 118         int             show_log_size;
 119
 120         /* Filter by commit log message */
 121         struct grep_opt grep_filter;
 122
 123         /* Display history graph */
 124         struct git_graph *graph;
 125
 126         /* special limits */
 127         int skip_count;
 128         int max_count;
 129         unsigned long max_age;
 130         unsigned long min_age;
 131
 132         /* diff info for patches and for paths limiting */
 133         struct diff_options diffopt;
 134         struct diff_options pruning;
 135
 136         struct reflog_walk_info *reflog_info;
 137         struct decoration children;
 138         struct decoration merge_simplification;
 139
 140         /* notes-specific options: which refs to show */
 141         struct display_notes_opt notes_opt;
 142
 143         /* commit counts */
 144         int count_left;
 145         int count_right;
 146         /* line level range that we are chasing */
 147         struct decoration line_range;
 148         struct decoration nontrivial_merge;
 149 };
 150
 151 #define REV_TREE_SAME           0
 152 #define REV_TREE_NEW            1       /* Only new files */
 153 #define REV_TREE_OLD            2       /* Only files removed */
 154 #define REV_TREE_DIFFERENT      3       /* Mixed changes */
 155
 156 /* revision.c */
 157 typedef void (*show_early_output_fn_t)(struct rev_info *, struct commit_list *);
 158 extern volatile show_early_output_fn_t show_early_output;
 159
 160 struct setup_revision_opt {
 161         const char *def;
 162         void (*tweak)(struct rev_info *, struct setup_revision_opt *);
 163         const char *submodule;
 164 };
 165
 166 extern void init_revisions(struct rev_info *revs, const char *prefix);
 167 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct setup_revision_opt *);
 168 extern void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
 169                                  const struct option *options,
 170                                  const char * const usagestr[]);
 171 extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
 172
 173 extern int prepare_revision_walk(struct rev_info *revs);
 174 extern struct commit *get_revision(struct rev_info *revs);
 175
 176 extern void mark_parents_uninteresting(struct commit *commit);
 177 extern void mark_tree_uninteresting(struct tree *tree);
 178
 179 struct name_path {
 180         struct name_path *up;
 181         int elem_len;
 182         const char *elem;
 183 };
 184
 185 char *path_name(const struct name_path *path, const char *name);
 186
 187 extern void add_object(struct object *obj,
 188                        struct object_array *p,
 189                        struct name_path *path,
 190                        const char *name);
 191
 192 extern void add_pending_object(struct rev_info *revs, struct object *obj, const char *name);
 193
 194 extern void add_head_to_pending(struct rev_info *);
 195
 196 enum commit_action {
 197         commit_ignore,
 198         commit_show,
 199         commit_error
 200 };
 201
 202 extern enum commit_action get_commit_action(struct rev_info *revs, struct commit *commit);
 203 extern enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit);
 204
 205 enum rewrite_result {
 206         rewrite_one_ok,
 207         rewrite_one_noparents,
 208         rewrite_one_error
 209 };
 210
 211 typedef enum rewrite_result (*rewrite_parent_fn_t)(struct rev_info *revs, struct commit **pp);
 212
 213 extern int rewrite_parents(struct rev_info *revs, struct commit *commit,
 214         rewrite_parent_fn_t rewrite_parent);
 215 #endif