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