notmuch: allow sort by file order

When using the notmuch backend, it often makes more sense to sort
folders (actual virtual folders, or queries) by the order specified in
the query-map file, rather than alphabetically. This patch introduces a
configuration option (disabled by default) that allows this.

Additionally, due to the notmuch backend previously using maps (which
are order-undefined) to store the list of queries, default query
selection on aerc startup fluctuated. This patch fixes that by using
slices to store query order.

1 files changed, 7 insertions, 1 deletions

diff --git a/widgets/dirlist.go b/widgets/dirlist.go
index 4db80a4..0345380 100644
--- a/widgets/dirlist.go
+++ b/widgets/dirlist.go
@@ -105,7 +105,9 @@ func (dirlist *DirectoryList) Select(name string) {
 				if !hasSelected && dirlist.selected != "" {
 					dirlist.dirs = append(dirlist.dirs, dirlist.selected)
 				}
-				sort.Strings(dirlist.dirs)
+				if dirlist.acctConf.EnableFoldersSort {
+					sort.Strings(dirlist.dirs)
+				}
 				dirlist.sortDirsByFoldersSortConfig()
 			}
 			dirlist.Invalidate()
@@ -376,6 +378,10 @@ func folderMatches(folder string, pattern string) bool {
 // AccountConfig.FoldersSort option. Folders not included in the option
 // will be appended at the end in alphabetical order
 func (dirlist *DirectoryList) sortDirsByFoldersSortConfig() {
+	if !dirlist.acctConf.EnableFoldersSort {
+		return
+	}
+
 	sort.Slice(dirlist.dirs, func(i, j int) bool {
 		foldersSort := dirlist.acctConf.FoldersSort
 		iInFoldersSort := findString(foldersSort, dirlist.dirs[i])