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#include "diff.h"
   9
  10/* Remember to update object flag allocation in object.h */
  11#define SEEN            (1u<<0)
  12#define UNINTERESTING   (1u<<1)
  13#define TREESAME        (1u<<2)
  14#define SHOWN           (1u<<3)
  15#define TMP_MARK        (1u<<4) /* for isolated cases; clean after use */
  16#define BOUNDARY        (1u<<5)
  17#define CHILD_SHOWN     (1u<<6)
  18#define ADDED           (1u<<7) /* Parents already parsed and added? */
  19#define SYMMETRIC_LEFT  (1u<<8)
  20#define PATCHSAME       (1u<<9)
  21#define BOTTOM          (1u<<10)
  22#define TRACK_LINEAR    (1u<<26)
  23#define ALL_REV_FLAGS   (((1u<<11)-1) | TRACK_LINEAR)
  24
  25#define DECORATE_SHORT_REFS     1
  26#define DECORATE_FULL_REFS      2
  27
  28struct rev_info;
  29struct log_info;
  30struct string_list;
  31struct saved_parents;
  32
  33struct rev_cmdline_info {
  34        unsigned int nr;
  35        unsigned int alloc;
  36        struct rev_cmdline_entry {
  37                struct object *item;
  38                const char *name;
  39                enum {
  40                        REV_CMD_REF,
  41                        REV_CMD_PARENTS_ONLY,
  42                        REV_CMD_LEFT,
  43                        REV_CMD_RIGHT,
  44                        REV_CMD_MERGE_BASE,
  45                        REV_CMD_REV
  46                } whence;
  47                unsigned flags;
  48        } *rev;
  49};
  50
  51#define REVISION_WALK_WALK 0
  52#define REVISION_WALK_NO_WALK_SORTED 1
  53#define REVISION_WALK_NO_WALK_UNSORTED 2
  54
  55struct rev_info {
  56        /* Starting list */
  57        struct commit_list *commits;
  58        struct object_array pending;
  59
  60        /* Parents of shown commits */
  61        struct object_array boundary_commits;
  62
  63        /* The end-points specified by the end user */
  64        struct rev_cmdline_info cmdline;
  65
  66        /* excluding from --branches, --refs, etc. expansion */
  67        struct string_list *ref_excludes;
  68
  69        /* Basic information */
  70        const char *prefix;
  71        const char *def;
  72        struct pathspec prune_data;
  73
  74        /* topo-sort */
  75        enum rev_sort_order sort_order;
  76
  77        unsigned int    early_output:1,
  78                        ignore_missing:1;
  79
  80        /* Traversal flags */
  81        unsigned int    dense:1,
  82                        prune:1,
  83                        no_walk:2,
  84                        show_all:1,
  85                        remove_empty_trees:1,
  86                        simplify_history:1,
  87                        topo_order:1,
  88                        simplify_merges:1,
  89                        simplify_by_decoration:1,
  90                        tag_objects:1,
  91                        tree_objects:1,
  92                        blob_objects:1,
  93                        verify_objects:1,
  94                        edge_hint:1,
  95                        limited:1,
  96                        unpacked:1,
  97                        boundary:2,
  98                        count:1,
  99                        left_right:1,
 100                        left_only:1,
 101                        right_only:1,
 102                        rewrite_parents:1,
 103                        print_parents:1,
 104                        show_source:1,
 105                        show_decorations:1,
 106                        reverse:1,
 107                        reverse_output_stage:1,
 108                        cherry_pick:1,
 109                        cherry_mark:1,
 110                        bisect:1,
 111                        ancestry_path:1,
 112                        first_parent_only:1,
 113                        line_level_traverse:1;
 114
 115        /* Diff flags */
 116        unsigned int    diff:1,
 117                        full_diff:1,
 118                        show_root_diff:1,
 119                        no_commit_id:1,
 120                        verbose_header:1,
 121                        ignore_merges:1,
 122                        combine_merges:1,
 123                        dense_combined_merges:1,
 124                        always_show_header:1;
 125
 126        /* Format info */
 127        unsigned int    shown_one:1,
 128                        shown_dashes:1,
 129                        show_merge:1,
 130                        show_notes:1,
 131                        show_notes_given:1,
 132                        show_signature:1,
 133                        pretty_given:1,
 134                        abbrev_commit:1,
 135                        abbrev_commit_given:1,
 136                        use_terminator:1,
 137                        missing_newline:1,
 138                        date_mode_explicit:1,
 139                        preserve_subject:1;
 140        unsigned int    disable_stdin:1;
 141        unsigned int    leak_pending:1;
 142        /* --show-linear-break */
 143        unsigned int    track_linear:1,
 144                        track_first_time:1,
 145                        linear:1;
 146
 147        enum date_mode date_mode;
 148
 149        unsigned int    abbrev;
 150        enum cmit_fmt   commit_format;
 151        struct log_info *loginfo;
 152        int             nr, total;
 153        const char      *mime_boundary;
 154        const char      *patch_suffix;
 155        int             numbered_files;
 156        int             reroll_count;
 157        char            *message_id;
 158        struct ident_split from_ident;
 159        struct string_list *ref_message_ids;
 160        int             add_signoff;
 161        const char      *extra_headers;
 162        const char      *log_reencode;
 163        const char      *subject_prefix;
 164        int             no_inline;
 165        int             show_log_size;
 166        struct string_list *mailmap;
 167
 168        /* Filter by commit log message */
 169        struct grep_opt grep_filter;
 170
 171        /* Display history graph */
 172        struct git_graph *graph;
 173
 174        /* special limits */
 175        int skip_count;
 176        int max_count;
 177        unsigned long max_age;
 178        unsigned long min_age;
 179        int min_parents;
 180        int max_parents;
 181        int (*include_check)(struct commit *, void *);
 182        void *include_check_data;
 183
 184        /* diff info for patches and for paths limiting */
 185        struct diff_options diffopt;
 186        struct diff_options pruning;
 187
 188        struct reflog_walk_info *reflog_info;
 189        struct decoration children;
 190        struct decoration merge_simplification;
 191        struct decoration treesame;
 192
 193        /* notes-specific options: which refs to show */
 194        struct display_notes_opt notes_opt;
 195
 196        /* commit counts */
 197        int count_left;
 198        int count_right;
 199        int count_same;
 200
 201        /* line level range that we are chasing */
 202        struct decoration line_log_data;
 203
 204        /* copies of the parent lists, for --full-diff display */
 205        struct saved_parents *saved_parents_slab;
 206
 207        struct commit_list *previous_parents;
 208        const char *break_bar;
 209};
 210
 211extern int ref_excluded(struct string_list *, const char *path);
 212void clear_ref_exclusion(struct string_list **);
 213void add_ref_exclusion(struct string_list **, const char *exclude);
 214
 215
 216#define REV_TREE_SAME           0
 217#define REV_TREE_NEW            1       /* Only new files */
 218#define REV_TREE_OLD            2       /* Only files removed */
 219#define REV_TREE_DIFFERENT      3       /* Mixed changes */
 220
 221/* revision.c */
 222typedef void (*show_early_output_fn_t)(struct rev_info *, struct commit_list *);
 223extern volatile show_early_output_fn_t show_early_output;
 224
 225struct setup_revision_opt {
 226        const char *def;
 227        void (*tweak)(struct rev_info *, struct setup_revision_opt *);
 228        const char *submodule;
 229        int assume_dashdash;
 230        unsigned revarg_opt;
 231};
 232
 233extern void init_revisions(struct rev_info *revs, const char *prefix);
 234extern int setup_revisions(int argc, const char **argv, struct rev_info *revs,
 235                           struct setup_revision_opt *);
 236extern void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
 237                               const struct option *options,
 238                               const char * const usagestr[]);
 239#define REVARG_CANNOT_BE_FILENAME 01
 240#define REVARG_COMMITTISH 02
 241extern int handle_revision_arg(const char *arg, struct rev_info *revs,
 242                               int flags, unsigned revarg_opt);
 243
 244extern void reset_revision_walk(void);
 245extern int prepare_revision_walk(struct rev_info *revs);
 246extern struct commit *get_revision(struct rev_info *revs);
 247extern char *get_revision_mark(const struct rev_info *revs,
 248                               const struct commit *commit);
 249extern void put_revision_mark(const struct rev_info *revs,
 250                              const struct commit *commit);
 251
 252extern void mark_parents_uninteresting(struct commit *commit);
 253extern void mark_tree_uninteresting(struct tree *tree);
 254
 255struct name_path {
 256        struct name_path *up;
 257        int elem_len;
 258        const char *elem;
 259};
 260
 261char *path_name(const struct name_path *path, const char *name);
 262
 263extern void show_object_with_name(FILE *, struct object *,
 264                                  const struct name_path *, const char *);
 265
 266extern void add_object(struct object *obj,
 267                       struct object_array *p,
 268                       struct name_path *path,
 269                       const char *name);
 270
 271extern void add_pending_object(struct rev_info *revs,
 272                               struct object *obj, const char *name);
 273extern void add_pending_sha1(struct rev_info *revs,
 274                             const char *name, const unsigned char *sha1,
 275                             unsigned int flags);
 276
 277extern void add_head_to_pending(struct rev_info *);
 278
 279enum commit_action {
 280        commit_ignore,
 281        commit_show,
 282        commit_error
 283};
 284
 285extern enum commit_action get_commit_action(struct rev_info *revs,
 286                                            struct commit *commit);
 287extern enum commit_action simplify_commit(struct rev_info *revs,
 288                                          struct commit *commit);
 289
 290enum rewrite_result {
 291        rewrite_one_ok,
 292        rewrite_one_noparents,
 293        rewrite_one_error
 294};
 295
 296typedef enum rewrite_result (*rewrite_parent_fn_t)(struct rev_info *revs, struct commit **pp);
 297
 298extern int rewrite_parents(struct rev_info *revs, struct commit *commit,
 299        rewrite_parent_fn_t rewrite_parent);
 300
 301/*
 302 * Save a copy of the parent list, and return the saved copy.  This is
 303 * used by the log machinery to retrieve the original parents when
 304 * commit->parents has been modified by history simpification.
 305 *
 306 * You may only call save_parents() once per commit (this is checked
 307 * for non-root commits).
 308 *
 309 * get_saved_parents() will transparently return commit->parents if
 310 * history simplification is off.
 311 */
 312extern void save_parents(struct rev_info *revs, struct commit *commit);
 313extern struct commit_list *get_saved_parents(struct rev_info *revs, const struct commit *commit);
 314extern void free_saved_parents(struct rev_info *revs);
 315
 316#endif