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   1 #ifndef UNPACK_TREES_H
   2 #define UNPACK_TREES_H
   3
   4 #define MAX_UNPACK_TREES 8
   5
   6 struct unpack_trees_options;
   7
   8 typedef int (*merge_fn_t)(struct cache_entry **src,
   9                 struct unpack_trees_options *options);
  10
  11 struct unpack_trees_error_msgs {
  12         const char *would_overwrite;
  13         const char *not_uptodate_file;
  14         const char *not_uptodate_dir;
  15         const char *would_lose_untracked;
  16         const char *bind_overlap;
  17 };
  18
  19 struct unpack_trees_options {
  20         unsigned int reset,
  21                      merge,
  22                      update,
  23                      index_only,
  24                      nontrivial_merge,
  25                      trivial_merges_only,
  26                      verbose_update,
  27                      aggressive,
  28                      skip_unmerged,
  29                      initial_checkout,
  30                      diff_index_cached,
  31                      gently;
  32         const char *prefix;
  33         int pos;
  34         struct dir_struct *dir;
  35         merge_fn_t fn;
  36         struct unpack_trees_error_msgs msgs;
  37
  38         int head_idx;
  39         int merge_size;
  40
  41         struct cache_entry *df_conflict_entry;
  42         void *unpack_data;
  43
  44         struct index_state *dst_index;
  45         struct index_state *src_index;
  46         struct index_state result;
  47 };
  48
  49 extern int unpack_trees(unsigned n, struct tree_desc *t,
  50                 struct unpack_trees_options *options);
  51
  52 int threeway_merge(struct cache_entry **stages, struct unpack_trees_options *o);
  53 int twoway_merge(struct cache_entry **src, struct unpack_trees_options *o);
  54 int bind_merge(struct cache_entry **src, struct unpack_trees_options *o);
  55 int oneway_merge(struct cache_entry **src, struct unpack_trees_options *o);
  56
  57 #endif