revision.h

   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_list *pending_objects;
  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                         lifo:1,
  34                         topo_order:1,
  35                         tag_objects:1,
  36                         tree_objects:1,
  37                         blob_objects:1,
  38                         edge_hint:1,
  39                         limited:1,
  40                         unpacked:1,
  41                         boundary:1,
  42                         parents:1;
  43
  44         /* Diff flags */
  45         unsigned int    diff:1,
  46                         full_diff:1,
  47                         show_root_diff:1,
  48                         no_commit_id:1,
  49                         verbose_header:1,
  50                         ignore_merges:1,
  51                         combine_merges:1,
  52                         dense_combined_merges:1,
  53                         always_show_header:1;
  54
  55         /* Format info */
  56         unsigned int    shown_one:1,
  57                         abbrev_commit:1;
  58         unsigned int    abbrev;
  59         enum cmit_fmt   commit_format;
  60         struct log_info *loginfo;
  61         int             nr, total;
  62
  63         /* special limits */
  64         int max_count;
  65         unsigned long max_age;
  66         unsigned long min_age;
  67
  68         /* diff info for patches and for paths limiting */
  69         struct diff_options diffopt;
  70         struct diff_options pruning;
  71
  72         topo_sort_set_fn_t topo_setter;
  73         topo_sort_get_fn_t topo_getter;
  74 };
  75
  76 #define REV_TREE_SAME           0
  77 #define REV_TREE_NEW            1
  78 #define REV_TREE_DIFFERENT      2
  79
  80 /* revision.c */
  81 extern int rev_same_tree_as_empty(struct rev_info *, struct tree *t1);
  82 extern int rev_compare_tree(struct rev_info *, struct tree *t1, struct tree *t2);
  83
  84 extern void init_revisions(struct rev_info *revs);
  85 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
  86 extern void prepare_revision_walk(struct rev_info *revs);
  87 extern struct commit *get_revision(struct rev_info *revs);
  88
  89 extern void mark_parents_uninteresting(struct commit *commit);
  90 extern void mark_tree_uninteresting(struct tree *tree);
  91
  92 struct name_path {
  93         struct name_path *up;
  94         int elem_len;
  95         const char *elem;
  96 };
  97
  98 extern struct object_list **add_object(struct object *obj,
  99                                        struct object_list **p,
 100                                        struct name_path *path,
 101                                        const char *name);
 102
 103 #endif