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d344d7d29694dbf64d6874163810e65915167fd8
   1#ifndef UNPACK_TREES_H
   2#define UNPACK_TREES_H
   3
   4#include "cache.h"
   5#include "argv-array.h"
   6#include "string-list.h"
   7#include "tree-walk.h"
   8
   9#define MAX_UNPACK_TREES 8
  10
  11struct cache_entry;
  12struct unpack_trees_options;
  13struct exclude_list;
  14
  15typedef int (*merge_fn_t)(const struct cache_entry * const *src,
  16                struct unpack_trees_options *options);
  17
  18enum unpack_trees_error_types {
  19        ERROR_WOULD_OVERWRITE = 0,
  20        ERROR_NOT_UPTODATE_FILE,
  21        ERROR_NOT_UPTODATE_DIR,
  22        ERROR_WOULD_LOSE_UNTRACKED_OVERWRITTEN,
  23        ERROR_WOULD_LOSE_UNTRACKED_REMOVED,
  24        ERROR_BIND_OVERLAP,
  25        ERROR_SPARSE_NOT_UPTODATE_FILE,
  26        ERROR_WOULD_LOSE_ORPHANED_OVERWRITTEN,
  27        ERROR_WOULD_LOSE_ORPHANED_REMOVED,
  28        ERROR_WOULD_LOSE_SUBMODULE,
  29        NB_UNPACK_TREES_ERROR_TYPES
  30};
  31
  32/*
  33 * Sets the list of user-friendly error messages to be used by the
  34 * command "cmd" (either merge or checkout), and show_all_errors to 1.
  35 */
  36void setup_unpack_trees_porcelain(struct unpack_trees_options *opts,
  37                                  const char *cmd);
  38
  39/*
  40 * Frees resources allocated by setup_unpack_trees_porcelain().
  41 */
  42void clear_unpack_trees_porcelain(struct unpack_trees_options *opts);
  43
  44struct unpack_trees_options {
  45        unsigned int reset,
  46                     merge,
  47                     update,
  48                     clone,
  49                     index_only,
  50                     nontrivial_merge,
  51                     trivial_merges_only,
  52                     verbose_update,
  53                     aggressive,
  54                     skip_unmerged,
  55                     initial_checkout,
  56                     diff_index_cached,
  57                     debug_unpack,
  58                     skip_sparse_checkout,
  59                     quiet,
  60                     exiting_early,
  61                     show_all_errors,
  62                     dry_run;
  63        const char *prefix;
  64        int cache_bottom;
  65        struct dir_struct *dir;
  66        struct pathspec *pathspec;
  67        merge_fn_t fn;
  68        const char *msgs[NB_UNPACK_TREES_ERROR_TYPES];
  69        struct argv_array msgs_to_free;
  70        /*
  71         * Store error messages in an array, each case
  72         * corresponding to a error message type
  73         */
  74        struct string_list unpack_rejects[NB_UNPACK_TREES_ERROR_TYPES];
  75
  76        int head_idx;
  77        int merge_size;
  78
  79        struct cache_entry *df_conflict_entry;
  80        void *unpack_data;
  81
  82        struct index_state *dst_index;
  83        struct index_state *src_index;
  84        struct index_state result;
  85
  86        struct exclude_list *el; /* for internal use */
  87};
  88
  89int unpack_trees(unsigned n, struct tree_desc *t,
  90                 struct unpack_trees_options *options);
  91
  92int verify_uptodate(const struct cache_entry *ce,
  93                    struct unpack_trees_options *o);
  94
  95int threeway_merge(const struct cache_entry * const *stages,
  96                   struct unpack_trees_options *o);
  97int twoway_merge(const struct cache_entry * const *src,
  98                 struct unpack_trees_options *o);
  99int bind_merge(const struct cache_entry * const *src,
 100               struct unpack_trees_options *o);
 101int oneway_merge(const struct cache_entry * const *src,
 102                 struct unpack_trees_options *o);
 103
 104#endif