Write the resolve undo data to the ondisk format, by joining the data
in the resolve-undo string-list with the already existing conflicts
that were compiled before, when searching the directories and add
them to the corresponding directory entries.

Helped-by: Thomas Rast <tr...@student.ethz.ch>
Signed-off-by: Thomas Gummerer <t.gumme...@gmail.com>
---
 read-cache.c   |    1 +
 resolve-undo.c |   93 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 resolve-undo.h |    1 +
 3 files changed, 95 insertions(+)

diff --git a/read-cache.c b/read-cache.c
index d18383f..6496cc4 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -2765,6 +2765,7 @@ static struct directory_entry 
*compile_directory_data(struct index_state *istate
        }
        if (istate->cache_tree)
                cache_tree_to_ondisk_v5(&table, istate->cache_tree);
+       resolve_undo_to_ondisk_v5(&table, istate->resolve_undo, ndir, 
total_dir_len, de);
        return de;
 }
 
diff --git a/resolve-undo.c b/resolve-undo.c
index f96c6ba..4568dcc 100644
--- a/resolve-undo.c
+++ b/resolve-undo.c
@@ -206,3 +206,96 @@ void resolve_undo_convert_v5(struct index_state *istate,
                ce = ce->next;
        }
 }
+
+void resolve_undo_to_ondisk_v5(struct hash_table *table,
+                               struct string_list *resolve_undo,
+                               unsigned int *ndir, int *total_dir_len,
+                               struct directory_entry *de)
+{
+       struct string_list_item *item;
+       struct directory_entry *search;
+
+       if (!resolve_undo)
+               return;
+       for_each_string_list_item(item, resolve_undo) {
+               struct conflict_entry *conflict_entry;
+               struct resolve_undo_info *ui = item->util;
+               char *super;
+               int i, dir_len, len;
+               uint32_t crc;
+               struct directory_entry *found, *current, *new_tree;
+
+               if (!ui)
+                       continue;
+
+               super = super_directory(item->string);
+               if (!super)
+                       dir_len = 0;
+               else
+                       dir_len = strlen(super);
+               crc = crc32(0, (Bytef*)super, dir_len);
+               found = lookup_hash(crc, table);
+               current = NULL;
+               new_tree = NULL;
+               
+               while (!found) {
+                       struct directory_entry *new;
+
+                       new = init_directory_entry(super, dir_len);
+                       if (!current)
+                               current = new;
+                       insert_directory_entry(new, table, total_dir_len, ndir, 
crc);
+                       if (new_tree != NULL)
+                               new->de_nsubtrees = 1;
+                       new->next = new_tree;
+                       new_tree = new;
+                       super = super_directory(super);
+                       if (!super)
+                               dir_len = 0;
+                       else
+                               dir_len = strlen(super);
+                       crc = crc32(0, (Bytef*)super, dir_len);
+                       found = lookup_hash(crc, table);
+               }
+               search = found;
+               while (search->next_hash && strcmp(super, search->pathname) != 
0)
+                       search = search->next_hash;
+               if (search && !current)
+                       current = search;
+               if (!search && !current)
+                       current = new_tree;
+               if (!super && new_tree) {
+                       new_tree->next = de->next;
+                       de->next = new_tree;
+                       de->de_nsubtrees++;
+               } else if (new_tree) {
+                       struct directory_entry *temp;
+
+                       search = de->next;
+                       while (strcmp(super, search->pathname))
+                               search = search->next;
+                       temp = new_tree;
+                       while (temp->next)
+                               temp = temp->next;
+                       search->de_nsubtrees++;
+                       temp->next = search->next;
+                       search->next = new_tree;
+               }
+
+               len = strlen(item->string);
+               conflict_entry = create_new_conflict(item->string, len, 
current->de_pathlen);
+               add_conflict_to_directory_entry(current, conflict_entry);
+               for (i = 0; i < 3; i++) {
+                       if (ui->mode[i]) {
+                               struct conflict_part *cp;
+
+                               cp = xmalloc(sizeof(struct conflict_part));
+                               cp->flags = (i + 1) << CONFLICT_STAGESHIFT;
+                               cp->entry_mode = ui->mode[i];
+                               cp->next = NULL;
+                               hashcpy(cp->sha1, ui->sha1[i]);
+                               add_part_to_conflict_entry(current, 
conflict_entry, cp);
+                       }
+               }
+       }
+}
diff --git a/resolve-undo.h b/resolve-undo.h
index ab660a6..ff80d84 100644
--- a/resolve-undo.h
+++ b/resolve-undo.h
@@ -14,5 +14,6 @@ extern int unmerge_index_entry_at(struct index_state *, int);
 extern void unmerge_index(struct index_state *, const char **);
 
 extern void resolve_undo_convert_v5(struct index_state *, struct 
conflict_entry *);
+extern void resolve_undo_to_ondisk_v5(struct hash_table *, struct string_list 
*, unsigned int *, int *, struct directory_entry *);
 
 #endif
-- 
1.7.10.GIT

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