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   1 #ifndef REVISION_H
   2 #define REVISION_H
   3
   4 #include "parse-options.h"
   5 #include "grep.h"
   6
   7 #define SEEN            (1u<<0)
   8 #define UNINTERESTING   (1u<<1)
   9 #define TREESAME        (1u<<2)
  10 #define SHOWN           (1u<<3)
  11 #define TMP_MARK        (1u<<4) /* for isolated cases; clean after use */
  12 #define BOUNDARY        (1u<<5)
  13 #define CHILD_SHOWN     (1u<<6)
  14 #define ADDED           (1u<<7) /* Parents already parsed and added? */
  15 #define SYMMETRIC_LEFT  (1u<<8)
  16 #define ALL_REV_FLAGS   ((1u<<9)-1)
  17
  18 struct rev_info;
  19 struct log_info;
  20
  21 struct rev_info {
  22         /* Starting list */
  23         struct commit_list *commits;
  24         struct object_array pending;
  25
  26         /* Parents of shown commits */
  27         struct object_array boundary_commits;
  28
  29         /* Basic information */
  30         const char *prefix;
  31         const char *def;
  32         void *prune_data;
  33         unsigned int early_output;
  34
  35         /* Traversal flags */
  36         unsigned int    dense:1,
  37                         prune:1,
  38                         no_merges:1,
  39                         no_walk:1,
  40                         show_all:1,
  41                         remove_empty_trees:1,
  42                         simplify_history:1,
  43                         lifo:1,
  44                         topo_order:1,
  45                         simplify_merges:1,
  46                         simplify_by_decoration:1,
  47                         tag_objects:1,
  48                         tree_objects:1,
  49                         blob_objects:1,
  50                         edge_hint:1,
  51                         limited:1,
  52                         unpacked:1, /* see also ignore_packed below */
  53                         boundary:2,
  54                         left_right:1,
  55                         rewrite_parents:1,
  56                         print_parents:1,
  57                         show_source:1,
  58                         show_decorations:1,
  59                         reverse:1,
  60                         reverse_output_stage:1,
  61                         cherry_pick:1,
  62                         first_parent_only:1;
  63
  64         /* Diff flags */
  65         unsigned int    diff:1,
  66                         full_diff:1,
  67                         show_root_diff:1,
  68                         no_commit_id:1,
  69                         verbose_header:1,
  70                         ignore_merges:1,
  71                         combine_merges:1,
  72                         dense_combined_merges:1,
  73                         always_show_header:1;
  74
  75         /* Format info */
  76         unsigned int    shown_one:1,
  77                         show_merge:1,
  78                         abbrev_commit:1,
  79                         use_terminator:1,
  80                         missing_newline:1;
  81         enum date_mode date_mode;
  82
  83         const char **ignore_packed; /* pretend objects in these are unpacked */
  84         int num_ignore_packed;
  85
  86         unsigned int    abbrev;
  87         enum cmit_fmt   commit_format;
  88         struct log_info *loginfo;
  89         int             nr, total;
  90         const char      *mime_boundary;
  91         char            *message_id;
  92         const char      *ref_message_id;
  93         const char      *add_signoff;
  94         const char      *extra_headers;
  95         const char      *log_reencode;
  96         const char      *subject_prefix;
  97         int             no_inline;
  98         int             show_log_size;
  99
 100         /* Filter by commit log message */
 101         struct grep_opt grep_filter;
 102
 103         /* Display history graph */
 104         struct git_graph *graph;
 105
 106         /* special limits */
 107         int skip_count;
 108         int max_count;
 109         unsigned long max_age;
 110         unsigned long min_age;
 111
 112         /* diff info for patches and for paths limiting */
 113         struct diff_options diffopt;
 114         struct diff_options pruning;
 115
 116         struct reflog_walk_info *reflog_info;
 117         struct decoration children;
 118         struct decoration merge_simplification;
 119 };
 120
 121 #define REV_TREE_SAME           0
 122 #define REV_TREE_NEW            1
 123 #define REV_TREE_DIFFERENT      2
 124
 125 /* revision.c */
 126 void read_revisions_from_stdin(struct rev_info *revs);
 127
 128 typedef void (*show_early_output_fn_t)(struct rev_info *, struct commit_list *);
 129 extern volatile show_early_output_fn_t show_early_output;
 130
 131 extern void init_revisions(struct rev_info *revs, const char *prefix);
 132 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
 133 extern void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
 134                                  const struct option *options,
 135                                  const char * const usagestr[]);
 136 extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
 137
 138 extern int prepare_revision_walk(struct rev_info *revs);
 139 extern struct commit *get_revision(struct rev_info *revs);
 140
 141 extern void mark_parents_uninteresting(struct commit *commit);
 142 extern void mark_tree_uninteresting(struct tree *tree);
 143
 144 struct name_path {
 145         struct name_path *up;
 146         int elem_len;
 147         const char *elem;
 148 };
 149
 150 extern void add_object(struct object *obj,
 151                        struct object_array *p,
 152                        struct name_path *path,
 153                        const char *name);
 154
 155 extern void add_pending_object(struct rev_info *revs, struct object *obj, const char *name);
 156
 157 extern void add_head_to_pending(struct rev_info *);
 158
 159 enum commit_action {
 160         commit_ignore,
 161         commit_show,
 162         commit_error
 163 };
 164
 165 extern enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit);
 166
 167 #endif