helix/languages: drop scls

helix master support buffer completion now.

packages/helix/languages.nix

@@ -17,7 +17,6 @@
   nil,
   ruff,
   shfmt,
-  simple-completion-language-server,
   typescript-language-server,
   vscode-langservers-extracted,
   zls,
@@ -90,12 +89,6 @@
         auto-format = true;
         language-servers = ["dprint" "typescript-language-server"];
       }
-      {
-        name = "jjdescription";
-        scope = "source.jjdescription";
-        file-types = ["jjdescription"];
-        language-servers = ["scls"];
-      }
       {
         name = "json";
         formatter = mark "json";
@@ -104,11 +97,11 @@
         name = "markdown";
         auto-format = true;
         formatter = mark "md";
-        language-servers = ["scls" "taplo"];
+        language-servers = ["taplo"];
       }
       {
         name = "nix";
-        language-servers = ["nil" "scls" "deadnix"];
+        language-servers = ["nil"];
       }
       {
         name = "qml";
@@ -172,12 +165,27 @@
       };
 
       rust-analyzer = {
-        config = {
+        config.rust-analyzer = {
+          checkOnSave.command = "clippy";
+          procMacro.enable = true;
+          cargo = {
+            loadOutDirsFromCheck = true;
+            features = "all";
+          };
+          assist = {
+            preferSelf = true;
+          };
           check = {
             command = "clippy";
             extraArgs = ["--" "-W" "clippy::pedantic" "-W" "clippy::nursery" "-W" "clippy::perf"];
           };
-          cargo.features = "all";
+          lens = {
+            references = true;
+            methodReferences = true;
+          };
+          completion.autoimport.enable = true;
+          experimental.procAttrMacros = true;
+          interpret.tests = true;
         };
       };
 
@@ -220,26 +228,22 @@
       nil = {
         command = getExe new-nil;
         # alejandro
-        config.nil.formatting.command = ["${getExe alejandra}" "-q"];
+        config.nil = {
+          formatting.command = ["${getExe alejandra}" "-q"];
+          diagnostics = {
+            bindingEndHintMinLines = 3;
+          };
+          nix.flake = {
+            autoArchive = true;
+            # autoEvalInputs = true;
+            nixpkgsInputName = "nixpkgs";
+          };
+        };
       };
       deadnix = {
         command = getExe new-deadnix;
       };
 
-      scls = {
-        command = getExe simple-completion-language-server;
-        config = {
-          max_completion_items = 100; # set max completion results len for each group: words, snippets, unicode-input
-          feature_words = true; # enable completion by word
-          feature_snippets = true; # enable snippets
-          snippets_first = true; # completions will return before snippets by default
-          snippets_inline_by_word_tail = false; # suggest snippets by WORD tail, for example text `xsq|` become `x^2|` when snippet `sq` has body `^2`
-          feature_unicode_input = false; # enable "unicode input"
-          feature_paths = false; # enable path completion
-          feature_citations = false; # enable citation completion (only on `citation` feature enabled)
-        };
-      };
-
       typescript-language-server = {
         command = getExe typescript-language-server;
         args = ["--stdio"];