feat(nvim/lualine): add command and mode

pkgs/nvim/config/helpers.lua

@@ -0,0 +1,26 @@
+if MVim then return end -- avoid loading twice the same module
+MVim = {}
+
+---@return {fg?:string}?
+function MVim.fg(name)
+  local color = MVim.color(name)
+  return color and { fg = color } or nil
+end
+
+---@param name string
+---@param bg? boolean
+---@return string?
+function MVim.color(name, bg)
+  ---@type {fg?:number, bg?:number}?
+  local hl = vim.api.nvim_get_hl(0, { name = name, link = false })
+  ---@type number?
+  local color = nil
+  if hl then
+    if bg then
+      color = hl.bg
+    else
+      color = hl.fg
+    end
+  end
+  return color and string.format("#%06x", color) or nil
+end

pkgs/nvim/config/sets.nix

@@ -117,7 +117,6 @@
 
       # We don't need to see things like INSERT anymore
       showmode = false;
-      showcmd = false;
 
       # Maximum number of items to show in the popup menu (0 means "use available screen space")
       pumheight = 0;
@@ -128,6 +127,14 @@
       laststatus = 3; # (https://neovim.io/doc/user/options.html#'laststatus')
     };
 
+    extraFiles = {
+      "lua/helpers.lua".source = ./helpers.lua;
+    };
+
+    extraConfigLuaPre = ''
+      require "helpers"
+    '';
+
     extraConfigLua = ''
       local opt = vim.opt
       local g = vim.g

pkgs/nvim/config/statusline/lualine.nix

@@ -17,7 +17,11 @@
       left = ""; # 
       right = ""; # 
     };
-    sections = {
+    sections = let
+      mkColor = color: {
+        __raw = ''function() return MVim.fg("${color}") end'';
+      };
+    in {
       lualine_a = ["mode"];
       lualine_b = ["branch"];
       lualine_c = [
@@ -45,7 +49,24 @@
         "filename"
       ];
 
-      lualine_x = [];
+      lualine_x = [
+        # Command
+        {
+          name.__raw = ''function() return require("noice").api.status.command.get() end'';
+          color = mkColor "Statement";
+          extraConfig = {
+            cond.__raw = ''function() return package.loaded["noice"] and require("noice").api.status.command.has() end'';
+          };
+        }
+        # Mode
+        {
+          name.__raw = ''function() return require("noice").api.status.mode.get() end'';
+          color = mkColor "Constant";
+          extraConfig = {
+            cond.__raw = ''function() return package.loaded["noice"] and require("noice").api.status.mode.has() end'';
+          };
+        }
+      ];
       lualine_y = [
         {
           name = "progress";