revision.h

   1 #ifndef REVISION_H
   2 #define REVISION_H
   3
   4 #include "commit.h"
   5 #include "parse-options.h"
   6 #include "grep.h"
   7 #include "notes.h"
   8 #include "pretty.h"
   9 #include "diff.h"
  10 #include "commit-slab-decl.h"
  11
  12 /* Remember to update object flag allocation in object.h */
  13 #define SEEN            (1u<<0)
  14 #define UNINTERESTING   (1u<<1)
  15 #define TREESAME        (1u<<2)
  16 #define SHOWN           (1u<<3)
  17 #define TMP_MARK        (1u<<4) /* for isolated cases; clean after use */
  18 #define BOUNDARY        (1u<<5)
  19 #define CHILD_SHOWN     (1u<<6)
  20 #define ADDED           (1u<<7) /* Parents already parsed and added? */
  21 #define SYMMETRIC_LEFT  (1u<<8)
  22 #define PATCHSAME       (1u<<9)
  23 #define BOTTOM          (1u<<10)
  24 #define USER_GIVEN      (1u<<25) /* given directly by the user */
  25 #define TRACK_LINEAR    (1u<<26)
  26 #define ALL_REV_FLAGS   (((1u<<11)-1) | USER_GIVEN | TRACK_LINEAR)
  27
  28 #define DECORATE_SHORT_REFS     1
  29 #define DECORATE_FULL_REFS      2
  30
  31 struct log_info;
  32 struct repository;
  33 struct rev_info;
  34 struct string_list;
  35 struct saved_parents;
  36 define_shared_commit_slab(revision_sources, char *);
  37
  38 struct rev_cmdline_info {
  39         unsigned int nr;
  40         unsigned int alloc;
  41         struct rev_cmdline_entry {
  42                 struct object *item;
  43                 const char *name;
  44                 enum {
  45                         REV_CMD_REF,
  46                         REV_CMD_PARENTS_ONLY,
  47                         REV_CMD_LEFT,
  48                         REV_CMD_RIGHT,
  49                         REV_CMD_MERGE_BASE,
  50                         REV_CMD_REV
  51                 } whence;
  52                 unsigned flags;
  53         } *rev;
  54 };
  55
  56 #define REVISION_WALK_WALK 0
  57 #define REVISION_WALK_NO_WALK_SORTED 1
  58 #define REVISION_WALK_NO_WALK_UNSORTED 2
  59
  60 struct rev_info {
  61         /* Starting list */
  62         struct commit_list *commits;
  63         struct object_array pending;
  64         struct repository *repo;
  65
  66         /* Parents of shown commits */
  67         struct object_array boundary_commits;
  68
  69         /* The end-points specified by the end user */
  70         struct rev_cmdline_info cmdline;
  71
  72         /* excluding from --branches, --refs, etc. expansion */
  73         struct string_list *ref_excludes;
  74
  75         /* Basic information */
  76         const char *prefix;
  77         const char *def;
  78         struct pathspec prune_data;
  79
  80         /*
  81          * Whether the arguments parsed by setup_revisions() included any
  82          * "input" revisions that might still have yielded an empty pending
  83          * list (e.g., patterns like "--all" or "--glob").
  84          */
  85         int rev_input_given;
  86
  87         /* topo-sort */
  88         enum rev_sort_order sort_order;
  89
  90         unsigned int early_output;
  91
  92         unsigned int    ignore_missing:1,
  93                         ignore_missing_links:1;
  94
  95         /* Traversal flags */
  96         unsigned int    dense:1,
  97                         prune:1,
  98                         no_walk:2,
  99                         remove_empty_trees:1,
 100                         simplify_history:1,
 101                         topo_order:1,
 102                         simplify_merges:1,
 103                         simplify_by_decoration:1,
 104                         single_worktree:1,
 105                         tag_objects:1,
 106                         tree_objects:1,
 107                         blob_objects:1,
 108                         verify_objects:1,
 109                         edge_hint:1,
 110                         edge_hint_aggressive:1,
 111                         limited:1,
 112                         unpacked:1,
 113                         boundary:2,
 114                         count:1,
 115                         left_right:1,
 116                         left_only:1,
 117                         right_only:1,
 118                         rewrite_parents:1,
 119                         print_parents:1,
 120                         show_decorations:1,
 121                         reverse:1,
 122                         reverse_output_stage:1,
 123                         cherry_pick:1,
 124                         cherry_mark:1,
 125                         bisect:1,
 126                         ancestry_path:1,
 127                         first_parent_only:1,
 128                         line_level_traverse:1,
 129                         tree_blobs_in_commit_order:1,
 130
 131                         /* for internal use only */
 132                         exclude_promisor_objects:1;
 133
 134         /* Diff flags */
 135         unsigned int    diff:1,
 136                         full_diff:1,
 137                         show_root_diff:1,
 138                         no_commit_id:1,
 139                         verbose_header:1,
 140                         ignore_merges:1,
 141                         combine_merges:1,
 142                         dense_combined_merges:1,
 143                         always_show_header:1;
 144
 145         /* Format info */
 146         unsigned int    shown_one:1,
 147                         shown_dashes:1,
 148                         show_merge:1,
 149                         show_notes:1,
 150                         show_notes_given:1,
 151                         show_signature:1,
 152                         pretty_given:1,
 153                         abbrev_commit:1,
 154                         abbrev_commit_given:1,
 155                         zero_commit:1,
 156                         use_terminator:1,
 157                         missing_newline:1,
 158                         date_mode_explicit:1,
 159                         preserve_subject:1;
 160         unsigned int    disable_stdin:1;
 161         /* --show-linear-break */
 162         unsigned int    track_linear:1,
 163                         track_first_time:1,
 164                         linear:1;
 165
 166         struct date_mode date_mode;
 167         int             expand_tabs_in_log; /* unset if negative */
 168         int             expand_tabs_in_log_default;
 169
 170         unsigned int    abbrev;
 171         enum cmit_fmt   commit_format;
 172         struct log_info *loginfo;
 173         int             nr, total;
 174         const char      *mime_boundary;
 175         const char      *patch_suffix;
 176         int             numbered_files;
 177         int             reroll_count;
 178         char            *message_id;
 179         struct ident_split from_ident;
 180         struct string_list *ref_message_ids;
 181         int             add_signoff;
 182         const char      *extra_headers;
 183         const char      *log_reencode;
 184         const char      *subject_prefix;
 185         int             no_inline;
 186         int             show_log_size;
 187         struct string_list *mailmap;
 188
 189         /* Filter by commit log message */
 190         struct grep_opt grep_filter;
 191         /* Negate the match of grep_filter */
 192         int invert_grep;
 193
 194         /* Display history graph */
 195         struct git_graph *graph;
 196
 197         /* special limits */
 198         int skip_count;
 199         int max_count;
 200         timestamp_t max_age;
 201         timestamp_t min_age;
 202         int min_parents;
 203         int max_parents;
 204         int (*include_check)(struct commit *, void *);
 205         void *include_check_data;
 206
 207         /* diff info for patches and for paths limiting */
 208         struct diff_options diffopt;
 209         struct diff_options pruning;
 210
 211         struct reflog_walk_info *reflog_info;
 212         struct decoration children;
 213         struct decoration merge_simplification;
 214         struct decoration treesame;
 215
 216         /* notes-specific options: which refs to show */
 217         struct display_notes_opt notes_opt;
 218
 219         /* commit counts */
 220         int count_left;
 221         int count_right;
 222         int count_same;
 223
 224         /* line level range that we are chasing */
 225         struct decoration line_log_data;
 226
 227         /* copies of the parent lists, for --full-diff display */
 228         struct saved_parents *saved_parents_slab;
 229
 230         struct commit_list *previous_parents;
 231         const char *break_bar;
 232
 233         struct revision_sources *sources;
 234 };
 235
 236 int ref_excluded(struct string_list *, const char *path);
 237 void clear_ref_exclusion(struct string_list **);
 238 void add_ref_exclusion(struct string_list **, const char *exclude);
 239
 240
 241 #define REV_TREE_SAME           0
 242 #define REV_TREE_NEW            1       /* Only new files */
 243 #define REV_TREE_OLD            2       /* Only files removed */
 244 #define REV_TREE_DIFFERENT      3       /* Mixed changes */
 245
 246 /* revision.c */
 247 typedef void (*show_early_output_fn_t)(struct rev_info *, struct commit_list *);
 248 extern volatile show_early_output_fn_t show_early_output;
 249
 250 struct setup_revision_opt {
 251         const char *def;
 252         void (*tweak)(struct rev_info *, struct setup_revision_opt *);
 253         const char *submodule;  /* TODO: drop this and use rev_info->repo */
 254         int assume_dashdash;
 255         unsigned revarg_opt;
 256 };
 257
 258 #ifndef NO_THE_REPOSITORY_COMPATIBILITY_MACROS
 259 #define init_revisions(revs, prefix) repo_init_revisions(the_repository, revs, prefix)
 260 #endif
 261 void repo_init_revisions(struct repository *r,
 262                          struct rev_info *revs,
 263                          const char *prefix);
 264 int setup_revisions(int argc, const char **argv, struct rev_info *revs,
 265                     struct setup_revision_opt *);
 266 void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
 267                         const struct option *options,
 268                         const char * const usagestr[]);
 269 #define REVARG_CANNOT_BE_FILENAME 01
 270 #define REVARG_COMMITTISH 02
 271 int handle_revision_arg(const char *arg, struct rev_info *revs,
 272                         int flags, unsigned revarg_opt);
 273
 274 void reset_revision_walk(void);
 275 int prepare_revision_walk(struct rev_info *revs);
 276 struct commit *get_revision(struct rev_info *revs);
 277 char *get_revision_mark(const struct rev_info *revs,
 278                         const struct commit *commit);
 279 void put_revision_mark(const struct rev_info *revs,
 280                        const struct commit *commit);
 281
 282 void mark_parents_uninteresting(struct commit *commit);
 283 void mark_tree_uninteresting(struct tree *tree);
 284
 285 void show_object_with_name(FILE *, struct object *, const char *);
 286
 287 void add_pending_object(struct rev_info *revs,
 288                         struct object *obj, const char *name);
 289 void add_pending_oid(struct rev_info *revs,
 290                      const char *name, const struct object_id *oid,
 291                      unsigned int flags);
 292
 293 void add_head_to_pending(struct rev_info *);
 294 void add_reflogs_to_pending(struct rev_info *, unsigned int flags);
 295 void add_index_objects_to_pending(struct rev_info *, unsigned int flags);
 296
 297 enum commit_action {
 298         commit_ignore,
 299         commit_show,
 300         commit_error
 301 };
 302
 303 enum commit_action get_commit_action(struct rev_info *revs,
 304                                      struct commit *commit);
 305 enum commit_action simplify_commit(struct rev_info *revs,
 306                                    struct commit *commit);
 307
 308 enum rewrite_result {
 309         rewrite_one_ok,
 310         rewrite_one_noparents,
 311         rewrite_one_error
 312 };
 313
 314 typedef enum rewrite_result (*rewrite_parent_fn_t)(struct rev_info *revs, struct commit **pp);
 315
 316 int rewrite_parents(struct rev_info *revs,
 317                     struct commit *commit,
 318                     rewrite_parent_fn_t rewrite_parent);
 319
 320 /*
 321  * The log machinery saves the original parent list so that
 322  * get_saved_parents() can later tell what the real parents of the
 323  * commits are, when commit->parents has been modified by history
 324  * simpification.
 325  *
 326  * get_saved_parents() will transparently return commit->parents if
 327  * history simplification is off.
 328  */
 329 struct commit_list *get_saved_parents(struct rev_info *revs, const struct commit *commit);
 330
 331 #endif