fix(lsp): fallback to sorting completions by label for LSPs that don't return unique sortText

src/file_type_lsp.zig

@@ -183,7 +183,9 @@ pub const python = .{
 
 pub const regex = .{};
 
-pub const rpmspec = .{};
+pub const rpmspec = .{
+    .language_server = .{ "python3", "-mrpm_spec_language_server", "--stdio" },
+};
 
 pub const rst = .{
     .language_server = .{"esbonio"},
@@ -233,7 +235,10 @@ pub const xml = .{
     .formatter = .{ "xmllint", "--format", "-" },
 };
 
-pub const yaml = .{};
+pub const yaml = .{
+    .language_server = .{ "yaml-language-server", "--stdio" },
+    .formatter = .{ "prettier", "--parser", "yaml" },
+};
 
 pub const zig = .{
     .language_server = .{"zls"},

src/tui/mode/overlay/completion_dropdown.zig

@@ -87,8 +87,9 @@ pub fn load_entries(self: *Type) !usize {
 
     const less_fn = struct {
         fn less_fn(_: void, lhs: Entry, rhs: Entry) bool {
-            const lhs_str = if (lhs.sort_text.len > 0) lhs.sort_text else lhs.label;
-            const rhs_str = if (rhs.sort_text.len > 0) rhs.sort_text else rhs.label;
+            const sort_text_equal = std.mem.eql(u8, lhs.sort_text, rhs.sort_text);
+            const lhs_str = if (!sort_text_equal and lhs.sort_text.len > 0) lhs.sort_text else lhs.label;
+            const rhs_str = if (!sort_text_equal and rhs.sort_text.len > 0) rhs.sort_text else rhs.label;
             return std.mem.order(u8, lhs_str, rhs_str) == .lt;
         }
     }.less_fn;

src/tui/mode/overlay/completion_palette.zig

@@ -69,8 +69,9 @@ pub fn load_entries(palette: *Type) !usize {
 
     const less_fn = struct {
         fn less_fn(_: void, lhs: Entry, rhs: Entry) bool {
-            const lhs_str = if (lhs.sort_text.len > 0) lhs.sort_text else lhs.label;
-            const rhs_str = if (rhs.sort_text.len > 0) rhs.sort_text else rhs.label;
+            const sort_text_equal = std.mem.eql(u8, lhs.sort_text, rhs.sort_text);
+            const lhs_str = if (!sort_text_equal and lhs.sort_text.len > 0) lhs.sort_text else lhs.label;
+            const rhs_str = if (!sort_text_equal and rhs.sort_text.len > 0) rhs.sort_text else rhs.label;
             return std.mem.order(u8, lhs_str, rhs_str) == .lt;
         }
     }.less_fn;