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