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   1 #ifndef REVISION_H
   2 #define REVISION_H
   3
   4 #define SEEN            (1u<<0)
   5 #define UNINTERESTING   (1u<<1)
   6 #define TREECHANGE      (1u<<2)
   7 #define SHOWN           (1u<<3)
   8 #define TMP_MARK        (1u<<4) /* for isolated cases; clean after use */
   9 #define BOUNDARY        (1u<<5)
  10 #define BOUNDARY_SHOW   (1u<<6)
  11 #define ADDED           (1u<<7) /* Parents already parsed and added? */
  12
  13 struct rev_info;
  14 struct log_info;
  15
  16 typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
  17
  18 struct rev_info {
  19         /* Starting list */
  20         struct commit_list *commits;
  21         struct object_array pending;
  22
  23         /* Basic information */
  24         const char *prefix;
  25         void *prune_data;
  26         prune_fn_t *prune_fn;
  27
  28         /* Traversal flags */
  29         unsigned int    dense:1,
  30                         no_merges:1,
  31                         no_walk:1,
  32                         remove_empty_trees:1,
  33                         simplify_history:1,
  34                         lifo:1,
  35                         topo_order:1,
  36                         tag_objects:1,
  37                         tree_objects:1,
  38                         blob_objects:1,
  39                         edge_hint:1,
  40                         limited:1,
  41                         unpacked:1,
  42                         boundary:1,
  43                         parents:1;
  44
  45         /* Diff flags */
  46         unsigned int    diff:1,
  47                         full_diff:1,
  48                         show_root_diff:1,
  49                         no_commit_id:1,
  50                         verbose_header:1,
  51                         ignore_merges:1,
  52                         combine_merges:1,
  53                         dense_combined_merges:1,
  54                         always_show_header:1;
  55
  56         /* Format info */
  57         unsigned int    shown_one:1,
  58                         abbrev_commit:1;
  59         unsigned int    abbrev;
  60         enum cmit_fmt   commit_format;
  61         struct log_info *loginfo;
  62         int             nr, total;
  63         const char      *mime_boundary;
  64         const char      *message_id;
  65         const char      *ref_message_id;
  66         const char      *add_signoff;
  67         const char      *extra_headers;
  68
  69         /* special limits */
  70         int max_count;
  71         unsigned long max_age;
  72         unsigned long min_age;
  73
  74         /* diff info for patches and for paths limiting */
  75         struct diff_options diffopt;
  76         struct diff_options pruning;
  77
  78         topo_sort_set_fn_t topo_setter;
  79         topo_sort_get_fn_t topo_getter;
  80 };
  81
  82 #define REV_TREE_SAME           0
  83 #define REV_TREE_NEW            1
  84 #define REV_TREE_DIFFERENT      2
  85
  86 /* revision.c */
  87 extern int rev_same_tree_as_empty(struct rev_info *, struct tree *t1);
  88 extern int rev_compare_tree(struct rev_info *, struct tree *t1, struct tree *t2);
  89
  90 extern void init_revisions(struct rev_info *revs);
  91 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
  92 extern void prepare_revision_walk(struct rev_info *revs);
  93 extern struct commit *get_revision(struct rev_info *revs);
  94
  95 extern void mark_parents_uninteresting(struct commit *commit);
  96 extern void mark_tree_uninteresting(struct tree *tree);
  97
  98 struct name_path {
  99         struct name_path *up;
 100         int elem_len;
 101         const char *elem;
 102 };
 103
 104 extern void add_object(struct object *obj,
 105                        struct object_array *p,
 106                        struct name_path *path,
 107                        const char *name);
 108
 109 extern void add_pending_object(struct rev_info *revs, struct object *obj, const char *name);
 110
 111 #endif