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 PATCHSAME       (1u<<9)
  18 #define BOTTOM          (1u<<10)
  19 #define ALL_REV_FLAGS   ((1u<<11)-1)
  20
  21 #define DECORATE_SHORT_REFS     1
  22 #define DECORATE_FULL_REFS      2
  23
  24 struct rev_info;
  25 struct log_info;
  26 struct string_list;
  27
  28 struct rev_cmdline_info {
  29         unsigned int nr;
  30         unsigned int alloc;
  31         struct rev_cmdline_entry {
  32                 struct object *item;
  33                 const char *name;
  34                 enum {
  35                         REV_CMD_REF,
  36                         REV_CMD_PARENTS_ONLY,
  37                         REV_CMD_LEFT,
  38                         REV_CMD_RIGHT,
  39                         REV_CMD_MERGE_BASE,
  40                         REV_CMD_REV
  41                 } whence;
  42                 unsigned flags;
  43         } *rev;
  44 };
  45
  46 #define REVISION_WALK_WALK 0
  47 #define REVISION_WALK_NO_WALK_SORTED 1
  48 #define REVISION_WALK_NO_WALK_UNSORTED 2
  49
  50 struct rev_info {
  51         /* Starting list */
  52         struct commit_list *commits;
  53         struct object_array pending;
  54
  55         /* Parents of shown commits */
  56         struct object_array boundary_commits;
  57
  58         /* The end-points specified by the end user */
  59         struct rev_cmdline_info cmdline;
  60
  61         /* Basic information */
  62         const char *prefix;
  63         const char *def;
  64         struct pathspec prune_data;
  65         unsigned int    early_output:1,
  66                         ignore_missing:1;
  67
  68         /* Traversal flags */
  69         unsigned int    dense:1,
  70                         prune:1,
  71                         no_walk:2,
  72                         show_all:1,
  73                         remove_empty_trees:1,
  74                         simplify_history:1,
  75                         lifo:1,
  76                         topo_order:1,
  77                         simplify_merges:1,
  78                         simplify_by_decoration:1,
  79                         tag_objects:1,
  80                         tree_objects:1,
  81                         blob_objects:1,
  82                         verify_objects:1,
  83                         edge_hint:1,
  84                         limited:1,
  85                         unpacked:1,
  86                         boundary:2,
  87                         count:1,
  88                         left_right:1,
  89                         left_only:1,
  90                         right_only:1,
  91                         rewrite_parents:1,
  92                         print_parents:1,
  93                         show_source:1,
  94                         show_decorations:1,
  95                         reverse:1,
  96                         reverse_output_stage:1,
  97                         cherry_pick:1,
  98                         cherry_mark:1,
  99                         bisect:1,
 100                         ancestry_path:1,
 101                         first_parent_only:1,
 102                         line_level_traverse:1;
 103
 104         /* Diff flags */
 105         unsigned int    diff:1,
 106                         full_diff:1,
 107                         show_root_diff:1,
 108                         no_commit_id:1,
 109                         verbose_header:1,
 110                         ignore_merges:1,
 111                         combine_merges:1,
 112                         dense_combined_merges:1,
 113                         always_show_header:1;
 114
 115         /* Format info */
 116         unsigned int    shown_one:1,
 117                         shown_dashes:1,
 118                         show_merge:1,
 119                         show_notes:1,
 120                         show_notes_given:1,
 121                         show_signature:1,
 122                         pretty_given:1,
 123                         abbrev_commit:1,
 124                         abbrev_commit_given:1,
 125                         use_terminator:1,
 126                         missing_newline:1,
 127                         date_mode_explicit:1,
 128                         preserve_subject:1;
 129         unsigned int    disable_stdin:1;
 130         unsigned int    leak_pending:1;
 131
 132         enum date_mode date_mode;
 133
 134         unsigned int    abbrev;
 135         enum cmit_fmt   commit_format;
 136         struct log_info *loginfo;
 137         int             nr, total;
 138         const char      *mime_boundary;
 139         const char      *patch_suffix;
 140         int             numbered_files;
 141         int             reroll_count;
 142         char            *message_id;
 143         struct string_list *ref_message_ids;
 144         int             add_signoff;
 145         const char      *extra_headers;
 146         const char      *log_reencode;
 147         const char      *subject_prefix;
 148         int             no_inline;
 149         int             show_log_size;
 150         struct string_list *mailmap;
 151
 152         /* Filter by commit log message */
 153         struct grep_opt grep_filter;
 154
 155         /* Display history graph */
 156         struct git_graph *graph;
 157
 158         /* special limits */
 159         int skip_count;
 160         int max_count;
 161         unsigned long max_age;
 162         unsigned long min_age;
 163         int min_parents;
 164         int max_parents;
 165
 166         /* diff info for patches and for paths limiting */
 167         struct diff_options diffopt;
 168         struct diff_options pruning;
 169
 170         struct reflog_walk_info *reflog_info;
 171         struct decoration children;
 172         struct decoration merge_simplification;
 173         struct decoration treesame;
 174
 175         /* notes-specific options: which refs to show */
 176         struct display_notes_opt notes_opt;
 177
 178         /* commit counts */
 179         int count_left;
 180         int count_right;
 181         int count_same;
 182
 183         /* line level range that we are chasing */
 184         struct decoration line_log_data;
 185 };
 186
 187 #define REV_TREE_SAME           0
 188 #define REV_TREE_NEW            1       /* Only new files */
 189 #define REV_TREE_OLD            2       /* Only files removed */
 190 #define REV_TREE_DIFFERENT      3       /* Mixed changes */
 191
 192 /* revision.c */
 193 typedef void (*show_early_output_fn_t)(struct rev_info *, struct commit_list *);
 194 extern volatile show_early_output_fn_t show_early_output;
 195
 196 struct setup_revision_opt {
 197         const char *def;
 198         void (*tweak)(struct rev_info *, struct setup_revision_opt *);
 199         const char *submodule;
 200         int assume_dashdash;
 201         unsigned revarg_opt;
 202 };
 203
 204 extern void init_revisions(struct rev_info *revs, const char *prefix);
 205 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs,
 206                            struct setup_revision_opt *);
 207 extern void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
 208                                const struct option *options,
 209                                const char * const usagestr[]);
 210 #define REVARG_CANNOT_BE_FILENAME 01
 211 #define REVARG_COMMITTISH 02
 212 extern int handle_revision_arg(const char *arg, struct rev_info *revs,
 213                                int flags, unsigned revarg_opt);
 214
 215 extern void reset_revision_walk(void);
 216 extern int prepare_revision_walk(struct rev_info *revs);
 217 extern struct commit *get_revision(struct rev_info *revs);
 218 extern char *get_revision_mark(const struct rev_info *revs,
 219                                const struct commit *commit);
 220 extern void put_revision_mark(const struct rev_info *revs,
 221                               const struct commit *commit);
 222
 223 extern void mark_parents_uninteresting(struct commit *commit);
 224 extern void mark_tree_uninteresting(struct tree *tree);
 225
 226 struct name_path {
 227         struct name_path *up;
 228         int elem_len;
 229         const char *elem;
 230 };
 231
 232 char *path_name(const struct name_path *path, const char *name);
 233
 234 extern void show_object_with_name(FILE *, struct object *,
 235                                   const struct name_path *, const char *);
 236
 237 extern void add_object(struct object *obj,
 238                        struct object_array *p,
 239                        struct name_path *path,
 240                        const char *name);
 241
 242 extern void add_pending_object(struct rev_info *revs,
 243                                struct object *obj, const char *name);
 244 extern void add_pending_sha1(struct rev_info *revs,
 245                              const char *name, const unsigned char *sha1,
 246                              unsigned int flags);
 247
 248 extern void add_head_to_pending(struct rev_info *);
 249
 250 enum commit_action {
 251         commit_ignore,
 252         commit_show,
 253         commit_error
 254 };
 255
 256 extern enum commit_action get_commit_action(struct rev_info *revs,
 257                                             struct commit *commit);
 258 extern enum commit_action simplify_commit(struct rev_info *revs,
 259                                           struct commit *commit);
 260
 261 enum rewrite_result {
 262         rewrite_one_ok,
 263         rewrite_one_noparents,
 264         rewrite_one_error
 265 };
 266
 267 typedef enum rewrite_result (*rewrite_parent_fn_t)(struct rev_info *revs, struct commit **pp);
 268
 269 extern int rewrite_parents(struct rev_info *revs, struct commit *commit,
 270         rewrite_parent_fn_t rewrite_parent);
 271 #endif