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         const char      *use_precomputed_header;
  60
  61         /* special limits */
  62         int max_count;
  63         unsigned long max_age;
  64         unsigned long min_age;
  65
  66         /* diff info for patches and for paths limiting */
  67         struct diff_options diffopt;
  68         struct diff_options pruning;
  69
  70         topo_sort_set_fn_t topo_setter;
  71         topo_sort_get_fn_t topo_getter;
  72 };
  73
  74 #define REV_TREE_SAME           0
  75 #define REV_TREE_NEW            1
  76 #define REV_TREE_DIFFERENT      2
  77
  78 /* revision.c */
  79 extern int rev_same_tree_as_empty(struct rev_info *, struct tree *t1);
  80 extern int rev_compare_tree(struct rev_info *, struct tree *t1, struct tree *t2);
  81
  82 extern void init_revisions(struct rev_info *revs);
  83 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
  84 extern void prepare_revision_walk(struct rev_info *revs);
  85 extern struct commit *get_revision(struct rev_info *revs);
  86
  87 extern void mark_parents_uninteresting(struct commit *commit);
  88 extern void mark_tree_uninteresting(struct tree *tree);
  89
  90 struct name_path {
  91         struct name_path *up;
  92         int elem_len;
  93         const char *elem;
  94 };
  95
  96 extern struct object_list **add_object(struct object *obj,
  97                                        struct object_list **p,
  98                                        struct name_path *path,
  99                                        const char *name);
 100
 101 #endif