Andrew's git - gitweb.git/blob

   1#ifndef REVISION_H
   2#define REVISION_H
   3
   4#include "parse-options.h"
   5#include "grep.h"
   6#include "notes.h"
   7#include "commit.h"
   8
   9#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
  22#define DECORATE_SHORT_REFS     1
  23#define DECORATE_FULL_REFS      2
  24
  25struct rev_info;
  26struct log_info;
  27struct string_list;
  28struct saved_parents;
  29
  30struct 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
  48#define REVISION_WALK_WALK 0
  49#define REVISION_WALK_NO_WALK_SORTED 1
  50#define REVISION_WALK_NO_WALK_UNSORTED 2
  51
  52struct rev_info {
  53        /* Starting list */
  54        struct commit_list *commits;
  55        struct object_array pending;
  56
  57        /* Parents of shown commits */
  58        struct object_array boundary_commits;
  59
  60        /* The end-points specified by the end user */
  61        struct rev_cmdline_info cmdline;
  62
  63        /* Basic information */
  64        const char *prefix;
  65        const char *def;
  66        struct pathspec prune_data;
  67
  68        /* topo-sort */
  69        enum rev_sort_order sort_order;
  70
  71        unsigned int    early_output:1,
  72                        ignore_missing:1;
  73
  74        /* 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
 109        /* 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
 120        /* 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
 137        enum date_mode date_mode;
 138
 139        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
 158        /* Filter by commit log message */
 159        struct grep_opt grep_filter;
 160
 161        /* Display history graph */
 162        struct git_graph *graph;
 163
 164        /* 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
 172        /* diff info for patches and for paths limiting */
 173        struct diff_options diffopt;
 174        struct diff_options pruning;
 175
 176        struct reflog_walk_info *reflog_info;
 177        struct decoration children;
 178        struct decoration merge_simplification;
 179        struct decoration treesame;
 180
 181        /* notes-specific options: which refs to show */
 182        struct display_notes_opt notes_opt;
 183
 184        /* commit counts */
 185        int count_left;
 186        int count_right;
 187        int count_same;
 188
 189        /* line level range that we are chasing */
 190        struct decoration line_log_data;
 191
 192        /* copies of the parent lists, for --full-diff display */
 193        struct saved_parents *saved_parents_slab;
 194};
 195
 196#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
 201/* 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;
 204
 205struct 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};
 212
 213extern 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);
 223
 224extern 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);
 231
 232extern void mark_parents_uninteresting(struct commit *commit);
 233extern void mark_tree_uninteresting(struct tree *tree);
 234
 235struct name_path {
 236        struct name_path *up;
 237        int elem_len;
 238        const char *elem;
 239};
 240
 241char *path_name(const struct name_path *path, const char *name);
 242
 243extern void show_object_with_name(FILE *, struct object *,
 244                                  const struct name_path *, const char *);
 245
 246extern void add_object(struct object *obj,
 247                       struct object_array *p,
 248                       struct name_path *path,
 249                       const char *name);
 250
 251extern 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);
 256
 257extern void add_head_to_pending(struct rev_info *);
 258
 259enum commit_action {
 260        commit_ignore,
 261        commit_show,
 262        commit_error
 263};
 264
 265extern 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);
 269
 270enum rewrite_result {
 271        rewrite_one_ok,
 272        rewrite_one_noparents,
 273        rewrite_one_error
 274};
 275
 276typedef enum rewrite_result (*rewrite_parent_fn_t)(struct rev_info *revs, struct commit **pp);
 277
 278extern int rewrite_parents(struct rev_info *revs, struct commit *commit,
 279        rewrite_parent_fn_t rewrite_parent);
 280
 281/*
 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
 296#endif