helix.nix: add rustfmt and clippy

a

hosts/temperance/configuration.nix

@@ -84,6 +84,7 @@ in {
         enable = true;
         musicDirectory = "/home/${config.modules.other.system.username}/cloud/media/Music";
       };
+      uwsm.enable = true;
     };
     other = {
       system = {

modules/programs/tui/zellij/module.nix

@@ -0,0 +1,12 @@
+{pkgs, ...}: let
+  # I am patching zellij because of this issue:
+  # https://github.com/zellij-org/zellij/pull/2548
+  patched-zellij = pkgs.zellij.overrideAttrs (old: {
+    patches = [./zellij-good-scrolling.patch];
+    doCheck = false;
+  });
+in {
+  environment.systemPackages = builtins.attrValues {
+    inherit patched-zellij;
+  };
+}

modules/programs/tui/zellij/zellij-good-scrolling.patch

@@ -0,0 +1,22 @@
+--- a/zellij-server/src/panes/grid.rs
++++ b/zellij-server/src/panes/grid.rs
+@@ -271,7 +271,7 @@ fn subtract_isize_from_usize(u: usize, i: isize) -> usize {
+ macro_rules! dump_screen {
+     ($lines:expr) => {{
+         let mut is_first = true;
+-        let mut buf = "".to_owned();
++        let mut buf = String::with_capacity($lines.iter().map(|l| l.len()).sum());
+ 
+         for line in &$lines {
+             if line.is_canonical && !is_first {
+@@ -280,8 +280,7 @@ macro_rules! dump_screen {
+             let s: String = (&line.columns).into_iter().map(|x| x.character).collect();
+             // Replace the spaces at the end of the line. Sometimes, the lines are
+             // collected with spaces until the end of the panel.
+-            let re = Regex::new("([^ ])[ ]*$").unwrap();
+-            buf.push_str(&(re.replace(&s, "${1}")));
++            buf.push_str(&s.trim_end_matches(' '));
+             is_first = false;
+         }
+         buf
+

modules/services/uwsm/module.nix

@@ -0,0 +1,25 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  cfg = config.modules.services.uwsm;
+  inherit (lib.modules) mkIf;
+  inherit (lib.options) mkEnableOption;
+in {
+  options.modules.services.uwsm.enable = mkEnableOption "uwsm";
+  config = mkIf cfg.enable {
+    programs.uwsm = {
+      enable = true;
+      package = pkgs.uwsm;
+      waylandCompositors = {
+        hyprland = {
+          prettyName = "Hyprland";
+          comment = "Hyprland managed with UWSM";
+          binPath = "/run/current-system/sw/bin/Hyprland";
+        };
+      };
+    };
+  };
+}

packages/helix.nix

@@ -25,6 +25,8 @@
   solargraph,
   tinymist,
   typescript-language-server,
+  rustfmt,
+  clippy,
   ...
 }: let
   inherit (lib) getExe;
@@ -256,6 +258,8 @@
       helix
 
       rust-analyzer
+      rustfmt
+      clippy
       # typst lsp
       tinymist