0.9.3claws64
[claws.git] / src / mh.c
index 5cd4fc24963689e69503c062614ce18a2c8cf6c8..95cd75f1ccaaa63b6e6a97f1ced641208a4dd1bb 100644 (file)
--- a/src/mh.c
+++ b/src/mh.c
 #include "procheader.h"
 #include "utils.h"
 
-static void    mh_folder_init                  (Folder         *folder,
-                                                const gchar    *name,
-                                                const gchar    *path);
-
-GSList  *mh_get_msg_list       (Folder         *folder,
-                                FolderItem     *item,
-                                gboolean        use_cache);
-gchar   *mh_fetch_msg          (Folder         *folder,
-                                FolderItem     *item,
-                                gint            num);
-MsgInfo   *mh_get_msginfo      (Folder         *folder,
-                                FolderItem     *item,
-                                gint            num);
-gint     mh_add_msg            (Folder         *folder,
-                                FolderItem     *dest,
-                                const gchar    *file,
-                                gboolean        remove_source);
-gint     mh_move_msg           (Folder         *folder,
-                                FolderItem     *dest,
-                                MsgInfo        *msginfo);
-gint     mh_move_msgs_with_dest        (Folder         *folder,
-                                FolderItem     *dest,
-                                GSList         *msglist);
-gint     mh_copy_msg           (Folder         *folder,
-                                FolderItem     *dest,
-                                MsgInfo        *msginfo);
-gint     mh_copy_msgs_with_dest        (Folder         *folder,
-                                FolderItem     *dest,
-                                GSList         *msglist);
-gint     mh_remove_msg         (Folder         *folder,
-                                FolderItem     *item,
-                                gint            num);
-gint     mh_remove_all_msg     (Folder         *folder,
-                                FolderItem     *item);
-gboolean mh_is_msg_changed     (Folder         *folder,
-                                FolderItem     *item,
-                                MsgInfo        *msginfo);
-
-gint    mh_scan_folder         (Folder         *folder,
-                                FolderItem     *item);
-gint mh_get_num_list           (Folder         *folder,
-                                FolderItem     *item,
-                                GSList        **list);
-void    mh_scan_tree           (Folder         *folder);
-
-gint    mh_create_tree         (Folder         *folder);
-FolderItem *mh_create_folder   (Folder         *folder,
-                                FolderItem     *parent,
-                                const gchar    *name);
-gint    mh_rename_folder       (Folder         *folder,
-                                FolderItem     *item,
-                                const gchar    *name);
-gint    mh_remove_folder       (Folder         *folder,
-                                FolderItem     *item);
-
-gchar   *mh_get_new_msg_filename               (FolderItem     *dest);
-
-static GSList  *mh_get_uncached_msgs           (GHashTable     *msg_table,
-                                                FolderItem     *item);
-static MsgInfo *mh_parse_msg                   (const gchar    *file,
-                                                FolderItem     *item);
-static void    mh_scan_tree_recursive          (FolderItem     *item);
-
-static gboolean mh_rename_folder_func          (GNode          *node,
-                                                gpointer        data);
+static void mh_folder_init(Folder * folder,
+                          const gchar * name, const gchar * path);
+
+static Folder *mh_folder_new(const gchar * name, const gchar * path);
+static void mh_folder_destroy(Folder * folder);
+static gchar *mh_fetch_msg(Folder * folder, FolderItem * item, gint num);
+static MsgInfo *mh_get_msginfo(Folder * folder,
+                              FolderItem * item, gint num);
+static gint mh_add_msg(Folder * folder,
+                      FolderItem * dest,
+                      const gchar * file,
+                      MsgFlags * flags);
+static gint mh_add_msgs(Folder * folder,
+                FolderItem * dest, GSList * file_list, GRelation *relation);
+static gint mh_copy_msg(Folder * folder,
+                       FolderItem * dest, MsgInfo * msginfo);
+static gint mh_remove_msg(Folder * folder, FolderItem * item, gint num);
+static gint mh_remove_all_msg(Folder * folder, FolderItem * item);
+static gboolean mh_is_msg_changed(Folder * folder,
+                                 FolderItem * item, MsgInfo * msginfo);
+
+static gint mh_get_num_list(Folder * folder,
+                           FolderItem * item, GSList ** list);
+static void mh_scan_tree(Folder * folder);
+
+static gint mh_create_tree(Folder * folder);
+static FolderItem *mh_create_folder(Folder * folder,
+                                   FolderItem * parent,
+                                   const gchar * name);
+static gint mh_rename_folder(Folder * folder,
+                            FolderItem * item, const gchar * name);
+static gint mh_remove_folder(Folder * folder, FolderItem * item);
+
+static gchar *mh_get_new_msg_filename(FolderItem * dest);
+
+static MsgInfo *mh_parse_msg(const gchar * file, FolderItem * item);
+static void mh_scan_tree_recursive(FolderItem * item);
+
+static gboolean mh_rename_folder_func(GNode * node, gpointer data);
+static gchar *mh_item_get_path(Folder *folder, FolderItem *item);
+
+FolderClass mh_class =
+{
+       F_MH,
+       "mh",
+       "MH",
+
+       /* Folder functions */
+       mh_folder_new,
+       mh_folder_destroy,
+       mh_scan_tree,
+       mh_create_tree,
+
+       /* FolderItem functions */
+       NULL,
+       NULL,
+       mh_item_get_path,
+       mh_create_folder,
+       mh_rename_folder,
+       mh_remove_folder,
+       NULL,
+       mh_get_num_list,
+       NULL,
+       NULL,
+       NULL,
+       NULL,
+       
+       /* Message functions */
+       mh_get_msginfo,
+       NULL,
+       mh_fetch_msg,
+       mh_add_msg,
+       mh_add_msgs,
+       mh_copy_msg,
+       NULL,
+       mh_remove_msg,
+       mh_remove_all_msg,
+       mh_is_msg_changed,
+       NULL,
+};
 
+FolderClass *mh_get_class(void)
+{
+       return &mh_class;
+}
 
 Folder *mh_folder_new(const gchar *name, const gchar *path)
 {
        Folder *folder;
 
        folder = (Folder *)g_new0(MHFolder, 1);
+       folder->klass = &mh_class;
        mh_folder_init(folder, name, path);
 
        return folder;
 }
 
-void mh_folder_destroy(Folder *folder)
+static void mh_folder_destroy(Folder *folder)
 {
        folder_local_folder_destroy(LOCAL_FOLDER(folder));
 }
 
 static void mh_folder_init(Folder *folder, const gchar *name, const gchar *path)
 {
-       folder->type = F_MH;
-
        folder_local_folder_init(folder, name, path);
 
-/*     folder->get_msg_list        = mh_get_msg_list; */
-       folder->fetch_msg           = mh_fetch_msg;
-       folder->get_msginfo         = mh_get_msginfo;
-       folder->add_msg             = mh_add_msg;
-       folder->move_msg            = mh_move_msg;
-       folder->move_msgs_with_dest = mh_move_msgs_with_dest;
-       folder->copy_msg            = mh_copy_msg;
-       folder->copy_msgs_with_dest = mh_copy_msgs_with_dest;
-       folder->remove_msg          = mh_remove_msg;
-       folder->remove_all_msg      = mh_remove_all_msg;
-       folder->is_msg_changed      = mh_is_msg_changed;
-/*     folder->scan                = mh_scan_folder; */
-       folder->get_num_list        = mh_get_num_list;
-       folder->scan_tree           = mh_scan_tree;
-       folder->create_tree         = mh_create_tree;
-       folder->create_folder       = mh_create_folder;
-       folder->rename_folder       = mh_rename_folder;
-       folder->remove_folder       = mh_remove_folder;
-       folder->destroy             = mh_folder_destroy;
 }
 
 void mh_get_last_num(Folder *folder, FolderItem *item)
@@ -231,67 +230,6 @@ gint mh_get_num_list(Folder *folder, FolderItem *item, GSList **list)
        return nummsgs;
 }
 
-GSList *mh_get_msg_list(Folder *folder, FolderItem *item, gboolean use_cache)
-{
-       GSList *mlist;
-       GHashTable *msg_table;
-       gchar *path;
-       struct stat s;
-       gboolean scan_new = TRUE;
-#ifdef MEASURE_TIME
-       struct timeval tv_before, tv_after, tv_result;
-
-       gettimeofday(&tv_before, NULL);
-#endif
-
-       g_return_val_if_fail(item != NULL, NULL);
-
-       path = folder_item_get_path(item);
-       if (stat(path, &s) < 0) {
-               FILE_OP_ERROR(path, "stat");
-       } else {
-               time_t mtime;
-
-               mtime = MAX(s.st_mtime, s.st_ctime);
-               if (item->mtime == mtime) {
-                       debug_print("Folder is not modified.\n");
-                       scan_new = FALSE;
-               } else
-                       item->mtime = mtime;
-       }
-       g_free(path);
-
-       if (use_cache && !scan_new) {
-               mlist = procmsg_read_cache(item, FALSE);
-               if (!mlist)
-                       mlist = mh_get_uncached_msgs(NULL, item);
-       } else if (use_cache) {
-               GSList *newlist;
-
-               mlist = procmsg_read_cache(item, TRUE);
-               msg_table = procmsg_msg_hash_table_create(mlist);
-
-               newlist = mh_get_uncached_msgs(msg_table, item);
-               if (msg_table)
-                       g_hash_table_destroy(msg_table);
-
-               mlist = g_slist_concat(mlist, newlist);
-       } else
-               mlist = mh_get_uncached_msgs(NULL, item);
-
-       procmsg_set_flags(mlist, item);
-
-#ifdef MEASURE_TIME
-       gettimeofday(&tv_after, NULL);
-
-       timersub(&tv_after, &tv_before, &tv_result);
-       g_print("mh_get_msg_list: %s: elapsed time: %ld.%06ld sec\n",
-               item->path, tv_result.tv_sec, tv_result.tv_usec);
-#endif
-
-       return mlist;
-}
-
 gchar *mh_fetch_msg(Folder *folder, FolderItem *item, gint num)
 {
        gchar *path;
@@ -323,7 +261,8 @@ MsgInfo *mh_get_msginfo(Folder *folder, FolderItem *item, gint num)
        if (!file) return NULL;
 
        msginfo = mh_parse_msg(file, item);
-       msginfo->msgnum = num;
+       if (msginfo)
+               msginfo->msgnum = num;
 
        g_free(file);
 
@@ -372,174 +311,55 @@ gchar *mh_get_new_msg_filename(FolderItem *dest)
        procmsg_write_flags(&newmsginfo, fp); \
 }
 
-gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file,
-               gboolean remove_source)
+gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file, MsgFlags *flags)
 {
-       gchar *destfile;
+       gint ret;
+       GSList file_list;
+       MsgFileInfo fileinfo;
 
-       g_return_val_if_fail(dest != NULL, -1);
        g_return_val_if_fail(file != NULL, -1);
 
-       if (dest->last_num < 0) {
-               mh_get_last_num(folder, dest);
-               if (dest->last_num < 0) return -1;
-       }
+       fileinfo.file = (gchar *)file;
+       fileinfo.flags = flags;
+       file_list.data = &fileinfo;
+       file_list.next = NULL;
 
-       destfile = mh_get_new_msg_filename(dest);
-       g_return_val_if_fail(destfile != NULL, -1);
-
-       if (link(file, destfile) < 0) {
-               if (copy_file(file, destfile, TRUE) < 0) {
-                       g_warning("can't copy message %s to %s\n",
-                                 file, destfile);
-                       g_free(destfile);
-                       return -1;
-               }
-       }
-
-       if (remove_source) {
-               if (unlink(file) < 0)
-                       FILE_OP_ERROR(file, "unlink");
-       }
-
-       g_free(destfile);
-       dest->last_num++;
-       return dest->last_num;
-}
-
-static gint mh_do_move(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
-{
-       gchar *srcfile;
-       gchar *destfile;
-       gint filemode = 0;
-       PrefsFolderItem *prefs;
-
-       g_return_val_if_fail(dest != NULL, -1);
-       g_return_val_if_fail(msginfo != NULL, -1);
-
-       if (msginfo->folder == dest) {
-               g_warning("the src folder is identical to the dest.\n");
-               return -1;
-       }
-
-       if (dest->last_num < 0) {
-               mh_get_last_num(folder, dest);
-               if (dest->last_num < 0) return -1;
-       }
-
-       prefs = dest->prefs;
-
-       destfile = mh_get_new_msg_filename(dest);
-       if (!destfile) return -1;
-
-       srcfile = procmsg_get_message_file(msginfo);
-       
-       debug_print("Moving message %s%c%d to %s ...\n",
-                   msginfo->folder->path, G_DIR_SEPARATOR,
-                   msginfo->msgnum, dest->path);
-
-       if (move_file(srcfile, destfile, FALSE) < 0) {
-               g_free(srcfile);
-               g_free(destfile);
-               return -1;
-       }
-
-       if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
-               if (chmod(destfile, prefs->folder_chmod) < 0)
-                       FILE_OP_ERROR(destfile, "chmod");
-
-               /* for mark file */
-               filemode = prefs->folder_chmod;
-               if (filemode & S_IRGRP) filemode |= S_IWGRP;
-               if (filemode & S_IROTH) filemode |= S_IWOTH;
-       }
-
-       g_free(srcfile);
-       g_free(destfile);
-       dest->last_num++;
-
-       return dest->last_num;
-}
-
-gint mh_move_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
-{
-       gchar *srcfile;
-       gint ret = 0;
-       g_return_val_if_fail(folder != NULL, -1);
-       g_return_val_if_fail(dest != NULL, -1);
-       g_return_val_if_fail(msginfo != NULL, -1);
-       g_return_val_if_fail(msginfo->folder != NULL, -1);
-       if (folder == msginfo->folder->folder)
-               return mh_do_move(folder, dest, msginfo);
-       srcfile = procmsg_get_message_file(msginfo);
-       if (!srcfile) return -1;
-       ret = mh_add_msg(folder, dest, srcfile, FALSE);
-       g_free(srcfile);
-       if (ret != -1) {
-               gchar *destdir;
-               FILE *fp;
-               destdir = folder_item_get_path(dest);
-               if ((fp = procmsg_open_mark_file(destdir, TRUE)) == NULL)
-                       g_warning("Can't open mark file.\n");
-               else {
-                       SET_DEST_MSG_FLAGS(fp, dest, msginfo);
-                       fclose(fp);
-               }
-               g_free(destdir);
-               ret = folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
-       }
+        ret = mh_add_msgs(folder, dest, &file_list, NULL);
+       return ret;
+} 
  
-       return ret;
-}
-
-static gint mh_do_move_msgs_with_dest(Folder *folder, FolderItem *dest,
-                                     GSList *msglist)
-{
-       gchar *srcfile;
+gint mh_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list, 
+                 GRelation *relation)
+{ 
        gchar *destfile;
        GSList *cur;
-       MsgInfo *msginfo;
-       PrefsFolderItem *prefs;
+       MsgFileInfo *fileinfo;
 
        g_return_val_if_fail(dest != NULL, -1);
-       g_return_val_if_fail(msglist != NULL, -1);
+       g_return_val_if_fail(file_list != NULL, -1);
 
        if (dest->last_num < 0) {
                mh_get_last_num(folder, dest);
                if (dest->last_num < 0) return -1;
        }
 
-       prefs = dest->prefs;
-
-       for (cur = msglist; cur != NULL; cur = cur->next) {
-               msginfo = (MsgInfo *)cur->data;
-
-               if (msginfo->folder == dest) {
-                       g_warning("the src folder is identical to the dest.\n");
-                       continue;
-               }
-               debug_print("Moving message %s%c%d to %s ...\n",
-                           msginfo->folder->path, G_DIR_SEPARATOR,
-                           msginfo->msgnum, dest->path);
+       for (cur = file_list; cur != NULL; cur = cur->next) {
+               fileinfo = (MsgFileInfo *)cur->data;
 
                destfile = mh_get_new_msg_filename(dest);
-               if (!destfile) return -1;
-               srcfile = procmsg_get_message_file(msginfo);
-
-               if (move_file(srcfile, destfile, FALSE) < 0) {
-                       g_free(srcfile);
-                       g_free(destfile);
-                       break;
+               if (destfile == NULL) return -1;
+
+               if (link(fileinfo->file, destfile) < 0) {
+                       if (copy_file(fileinfo->file, destfile, TRUE) < 0) {
+                               g_warning(_("can't copy message %s to %s\n"),
+                                         fileinfo->file, destfile);
+                               g_free(destfile);
+                               return -1;
+                       }
                }
+               if (relation != NULL)
+                       g_relation_insert(relation, fileinfo, GINT_TO_POINTER(dest->last_num + 1));
 
-               g_free(srcfile);
                g_free(destfile);
                dest->last_num++;
        }
@@ -547,31 +367,12 @@ static gint mh_do_move_msgs_with_dest(Folder *folder, FolderItem *dest,
        return dest->last_num;
 }
 
-gint mh_move_msgs_with_dest(Folder *folder, FolderItem *dest, GSList *msglist)
-{
-       MsgInfo *msginfo;
-       GSList *cur;
-       gint ret = 0;
-
-       msginfo = (MsgInfo *)msglist->data;
-       if (folder == msginfo->folder->folder)
-               return mh_do_move_msgs_with_dest(folder, dest, msglist);
-
-       for (cur = msglist; cur != NULL; cur = cur->next) {
-               msginfo = (MsgInfo *)cur->data;
-               ret = mh_move_msg(folder, dest, msginfo);
-               if (ret == -1) break;
-       }
-
-       return ret;
-}
-
 gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 {
        gchar *srcfile;
        gchar *destfile;
        gint filemode = 0;
-       PrefsFolderItem *prefs;
+       FolderItemPrefs *prefs;
 
        g_return_val_if_fail(dest != NULL, -1);
        g_return_val_if_fail(msginfo != NULL, -1);
@@ -632,94 +433,6 @@ gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
        return dest->last_num;
 }
 
-/*
-gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
-{
-       Folder * src_folder;
-       gchar * filename;
-       gint num;
-       gchar * destdir;
-       FILE * fp;
-
-       src_folder = msginfo->folder->folder;
-       
-       g_return_val_if_fail(src_folder->fetch_msg != NULL, -1);
-       
-       filename = src_folder->fetch_msg(src_folder,
-                                        msginfo->folder,
-                                        msginfo->msgnum);
-       if (filename == NULL)
-               return -1;
-
-       num = folder->add_msg(folder, dest, filename, FALSE);
-
-       destdir = folder_item_get_path(dest);
-
-       if (fp) {
-               MsgInfo newmsginfo;
-
-               newmsginfo.msgnum = dest->last_num;
-               newmsginfo.flags = msginfo->flags;
-               if (dest->stype == F_OUTBOX ||
-                   dest->stype == F_QUEUE  ||
-                   dest->stype == F_DRAFT  ||
-                   dest->stype == F_TRASH)
-                       MSG_UNSET_FLAGS(newmsginfo.flags,
-                                       MSG_NEW|MSG_UNREAD|MSG_DELETED);
-
-               procmsg_write_flags(&newmsginfo, fp);
-               fclose(fp);
-       }
-       
-       return num;
-}
-*/
-
-gint mh_copy_msgs_with_dest(Folder *folder, FolderItem *dest, GSList *msglist)
-{
-       gchar *srcfile;
-       gchar *destfile;
-       GSList *cur;
-       MsgInfo *msginfo;
-
-       g_return_val_if_fail(dest != NULL, -1);
-       g_return_val_if_fail(msglist != NULL, -1);
-
-       if (dest->last_num < 0) {
-               mh_get_last_num(folder, dest);
-               if (dest->last_num < 0) return -1;
-       }
-
-       for (cur = msglist; cur != NULL; cur = cur->next) {
-               msginfo = (MsgInfo *)cur->data;
-
-               if (msginfo->folder == dest) {
-                       g_warning("the src folder is identical to the dest.\n");
-                       continue;
-               }
-               debug_print("Copying message %s%c%d to %s ...\n",
-                           msginfo->folder->path, G_DIR_SEPARATOR,
-                           msginfo->msgnum, dest->path);
-
-               destfile = mh_get_new_msg_filename(dest);
-               if (!destfile) break;
-               srcfile = procmsg_get_message_file(msginfo);
-
-               if (copy_file(srcfile, destfile, TRUE) < 0) {
-                       FILE_OP_ERROR(srcfile, "copy");
-                       g_free(srcfile);
-                       g_free(destfile);
-                       break;
-               }
-
-               g_free(srcfile);
-               g_free(destfile);
-               dest->last_num++;
-       }
-
-       return dest->last_num;
-}
-
 gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
 {
        gchar *file;
@@ -766,70 +479,6 @@ gboolean mh_is_msg_changed(Folder *folder, FolderItem *item, MsgInfo *msginfo)
        return FALSE;
 }
 
-gint mh_scan_folder(Folder *folder, FolderItem *item)
-{
-       gchar *path;
-       DIR *dp;
-       struct dirent *d;
-       struct stat s;
-       gint max = 0;
-       gint num;
-
-       g_return_val_if_fail(item != NULL, -1);
-
-       debug_print("mh_scan_folder(): Scanning %s ...\n", item->path);
-
-       path = folder_item_get_path(item);
-       g_return_val_if_fail(path != NULL, -1);
-       if (change_dir(path) < 0) {
-               g_free(path);
-               return -1;
-       }
-       g_free(path);
-
-       if ((dp = opendir(".")) == NULL) {
-               FILE_OP_ERROR(item->path, "opendir");
-               return -1;
-       }
-
-       if (folder->ui_func)
-               folder->ui_func(folder, item, folder->ui_func_data);
-
-       while ((d = readdir(dp)) != NULL) {
-               if ((num = to_number(d->d_name)) >= 0 &&
-                   stat(d->d_name, &s) == 0 &&
-                   S_ISREG(s.st_mode)) {
-/*
-                       n_msg++;
-*/
-                       if (max < num)
-                               max = num;
-               }
-       }
-       closedir(dp);
-
-/*
-       if (n_msg == 0)
-               item->new = item->unread = item->total = 0;
-       else {
-               gint new, unread, total, min, max;
-
-               procmsg_get_mark_sum(".", &new, &unread, &total, &min, &max, 0);
-               if (n_msg > total) {
-                       new += n_msg - total;
-                       unread += n_msg - total;
-               }
-               item->new = new;
-               item->unread = unread;
-               item->total = n_msg;
-       }
-*/
-       debug_print("Last number in dir %s = %d\n", item->path, max);
-       item->last_num = max;
-
-       return 0;
-}
-
 void mh_scan_tree(Folder *folder)
 {
        FolderItem *item;
@@ -886,12 +535,44 @@ gint mh_create_tree(Folder *folder)
 
 #undef MAKE_DIR_IF_NOT_EXIST
 
+gchar *mh_item_get_path(Folder *folder, FolderItem *item)
+{
+       gchar *folder_path, *path;
+
+       g_return_val_if_fail(folder != NULL, NULL);
+       g_return_val_if_fail(item != NULL, NULL);
+
+       folder_path = g_strdup(LOCAL_FOLDER(folder)->rootpath);
+       g_return_val_if_fail(folder_path != NULL, NULL);
+
+        if (folder_path[0] == G_DIR_SEPARATOR) {
+                if (item->path)
+                        path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
+                                           item->path, NULL);
+                else
+                        path = g_strdup(folder_path);
+        } else {
+                if (item->path)
+                        path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
+                                           folder_path, G_DIR_SEPARATOR_S,
+                                           item->path, NULL);
+                else
+                        path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
+                                           folder_path, NULL);
+        }
+       g_free(folder_path);
+
+       return path;
+}
+
 FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
                             const gchar *name)
 {
        gchar *path;
        gchar *fullpath;
        FolderItem *new_item;
+       gchar *mh_sequences_filename;
+       FILE *mh_sequences_file;
 
        g_return_val_if_fail(folder != NULL, NULL);
        g_return_val_if_fail(parent != NULL, NULL);
@@ -919,6 +600,16 @@ FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
                path = g_strdup(name);
        new_item = folder_item_new(folder, name, path);
        folder_item_append(parent, new_item);
+
+       g_free(path);
+
+       path = folder_item_get_path(new_item);
+       mh_sequences_filename = g_strconcat(path, G_DIR_SEPARATOR_S,
+                                           ".mh_sequences", NULL);
+       if ((mh_sequences_file = fopen(mh_sequences_filename, "a+b")) != NULL) {
+               fclose(mh_sequences_file);
+       }
+       g_free(mh_sequences_filename);
        g_free(path);
 
        return new_item;
@@ -997,104 +688,6 @@ gint mh_remove_folder(Folder *folder, FolderItem *item)
        return 0;
 }
 
-
-static GSList *mh_get_uncached_msgs(GHashTable *msg_table, FolderItem *item)
-{
-       gchar *path;
-       DIR *dp;
-       struct dirent *d;
-       struct stat s;
-       GSList *newlist = NULL;
-       GSList *last = NULL;
-       MsgInfo *msginfo;
-       gint n_newmsg = 0;
-       gint num;
-
-       g_return_val_if_fail(item != NULL, NULL);
-
-       path = folder_item_get_path(item);
-       g_return_val_if_fail(path != NULL, NULL);
-       if (change_dir(path) < 0) {
-               g_free(path);
-               return NULL;
-       }
-       g_free(path);
-
-       if ((dp = opendir(".")) == NULL) {
-               FILE_OP_ERROR(item->path, "opendir");
-               return NULL;
-       }
-
-       debug_print("\tSearching uncached messages... ");
-
-       if (msg_table) {
-               while ((d = readdir(dp)) != NULL) {
-                       if ((num = to_number(d->d_name)) < 0) continue;
-                       if (stat(d->d_name, &s) < 0) {
-                               FILE_OP_ERROR(d->d_name, "stat");
-                               continue;
-                       }
-                       if (!S_ISREG(s.st_mode)) continue;
-
-                       msginfo = g_hash_table_lookup
-                               (msg_table, GUINT_TO_POINTER(num));
-
-                       if (!msginfo) {
-                               /* not found in the cache (uncached message) */
-                               msginfo = mh_parse_msg(d->d_name, item);
-                               if (!msginfo) continue;
-
-                               if (!newlist)
-                                       last = newlist =
-                                               g_slist_append(NULL, msginfo);
-                               else {
-                                       last = g_slist_append(last, msginfo);
-                                       last = last->next;
-                               }
-                               n_newmsg++;
-                       }
-               }
-       } else {
-               /* discard all previous cache */
-               while ((d = readdir(dp)) != NULL) {
-                       if (to_number(d->d_name) < 0) continue;
-                       if (stat(d->d_name, &s) < 0) {
-                               FILE_OP_ERROR(d->d_name, "stat");
-                               continue;
-                       }
-                       if (!S_ISREG(s.st_mode)) continue;
-
-                       msginfo = mh_parse_msg(d->d_name, item);
-                       if (!msginfo) continue;
-
-                       if (!newlist)
-                               last = newlist = g_slist_append(NULL, msginfo);
-                       else {
-                               last = g_slist_append(last, msginfo);
-                               last = last->next;
-                       }
-                       n_newmsg++;
-               }
-       }
-
-       closedir(dp);
-
-       if (n_newmsg)
-               debug_print("%d uncached message(s) found.\n", n_newmsg);
-       else
-               debug_print("done.\n");
-
-       /* sort new messages in numerical order */
-       if (newlist) {
-               debug_print("\tSorting uncached messages in numerical order... ");
-               newlist = g_slist_sort
-                       (newlist, (GCompareFunc)procmsg_cmp_msgnum_for_sort);
-               debug_print("done.\n");
-       }
-
-       return newlist;
-}
-
 static MsgInfo *mh_parse_msg(const gchar *file, FolderItem *item)
 {
        struct stat s;