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
  15 typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
  16
  17 struct rev_info {
  18         /* Starting list */
  19         struct commit_list *commits;
  20         struct object_list *pending_objects;
  21
  22         /* Basic information */
  23         const char *prefix;
  24         void *prune_data;
  25         prune_fn_t *prune_fn;
  26
  27         /* Traversal flags */
  28         unsigned int    dense:1,
  29                         no_merges:1,
  30                         no_walk:1,
  31                         remove_empty_trees:1,
  32                         lifo:1,
  33                         topo_order:1,
  34                         tag_objects:1,
  35                         tree_objects:1,
  36                         blob_objects:1,
  37                         edge_hint:1,
  38                         limited:1,
  39                         unpacked:1,
  40                         boundary:1,
  41                         parents:1;
  42
  43         /* Diff flags */
  44         unsigned int    diff:1,
  45                         full_diff:1,
  46                         show_root_diff:1,
  47                         no_commit_id:1,
  48                         verbose_header:1,
  49                         ignore_merges:1,
  50                         combine_merges:1,
  51                         dense_combined_merges:1,
  52                         always_show_header:1;
  53
  54         /* Format info */
  55         unsigned int    abbrev_commit:1;
  56         unsigned int    abbrev;
  57         enum cmit_fmt   commit_format;
  58         const char      *header_prefix;
  59         const char      *header;
  60         const char      *use_precomputed_header;
  61
  62         /* special limits */
  63         int max_count;
  64         unsigned long max_age;
  65         unsigned long min_age;
  66
  67         /* diff info for patches and for paths limiting */
  68         struct diff_options diffopt;
  69         struct diff_options pruning;
  70
  71         topo_sort_set_fn_t topo_setter;
  72         topo_sort_get_fn_t topo_getter;
  73 };
  74
  75 #define REV_TREE_SAME           0
  76 #define REV_TREE_NEW            1
  77 #define REV_TREE_DIFFERENT      2
  78
  79 /* revision.c */
  80 extern int rev_same_tree_as_empty(struct rev_info *, struct tree *t1);
  81 extern int rev_compare_tree(struct rev_info *, struct tree *t1, struct tree *t2);
  82
  83 extern void init_revisions(struct rev_info *revs);
  84 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
  85 extern void prepare_revision_walk(struct rev_info *revs);
  86 extern struct commit *get_revision(struct rev_info *revs);
  87
  88 extern void mark_parents_uninteresting(struct commit *commit);
  89 extern void mark_tree_uninteresting(struct tree *tree);
  90
  91 struct name_path {
  92         struct name_path *up;
  93         int elem_len;
  94         const char *elem;
  95 };
  96
  97 extern struct object_list **add_object(struct object *obj,
  98                                        struct object_list **p,
  99                                        struct name_path *path,
 100                                        const char *name);
 101
 102 #endif