neovim configuration - thanks ku <3

configuration.nix

@@ -139,18 +139,158 @@ clipcatd &
     };
 
     programs.neovim = {
-      enable = true;
+    enable = true;
-      defaultEditor = true;
+    defaultEditor = true;
-      viAlias = true;
+    extraConfig = ''
-      vimAlias = true;
+      set shiftwidth=2 smarttab
-      vimdiffAlias = true;
+      set expandtab
-      plugins = with pkgs.vimPlugins; [
+      set tabstop=8 softtabstop=0
-        lualine-nvim
+    '';
-        nvim-lspconfig
+    extraPackages = with pkgs; [
-        nvim-treesitter.withAllGrammars
+    #  Use the project flake's language server to prevent version mismatches
-      ];
+    #  clang_12
-    };
+    #  rust-analyzer
+    ];
+    plugins = with pkgs.vimPlugins; [
+      {
+        plugin = sonokai;
+        type = "viml";
+        # Better performance is off until I can figure out a way to make the cache outside the nix store
+        config = ''
+	  if has('termguicolors')
+	    set termguicolors
+	  endif
+          let g:sonokai_style = 'shusia'
+          let g:sonokai_better_performance = 0
+	  colorscheme sonokai
+          set clipboard+=unnamedplus
+        '';
+      }
+      {
+        plugin = lualine-nvim;
+        type = "lua";
+        config = ''
+          require'lualine'.setup {
+            options = {
+              theme = 'sonokai'
+            },
+            sections = {
+              lualine_c = {'lsp_progress'}
+            }
+          }
+	'';
+      }
+      {
+        plugin = lsp-status-nvim;
+        type = "lua";
+        config = ''
+          require'lsp-status'.register_progress()
+        '';
+      }
+      {
+        plugin = nvim-lspconfig;
+        type = "lua";
+        config = ''
+          -- Mappings.
+          -- See `:help vim.diagnostic.*` for documentation on any of the below functions
+          local opts = { noremap=true, silent=true }
+          vim.keymap.set('n', '<space>e', vim.diagnostic.open_float, opts)
+          vim.keymap.set('n', '[d', vim.diagnostic.goto_prev, opts)
+          vim.keymap.set('n', ']d', vim.diagnostic.goto_next, opts)
+          vim.keymap.set('n', '<space>q', vim.diagnostic.setloclist, opts)
 
+          -- Use an on_attach function to only map the following keys
+          -- after the language server attaches to the current buffer
+          local on_attach = function(client, bufnr)
+            -- Set up status tracking
+            require'lsp-status'.on_attach(client)
+            -- Enable completion triggered by <c-x><c-o>
+            vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')
+
+            -- Mappings.
+            -- See `:help vim.lsp.*` for documentation on any of the below functions
+            local bufopts = { noremap=true, silent=true, buffer=bufnr }
+            vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, bufopts)
+            vim.keymap.set('n', 'gd', vim.lsp.buf.definition, bufopts)
+            vim.keymap.set('n', 'K', vim.lsp.buf.hover, bufopts)
+            vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, bufopts)
+            vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help, bufopts)
+            vim.keymap.set('n', '<space>wa', vim.lsp.buf.add_workspace_folder, bufopts)
+            vim.keymap.set('n', '<space>wr', vim.lsp.buf.remove_workspace_folder, bufopts)
+            vim.keymap.set('n', '<space>wl', function()
+              print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
+            end, bufopts)
+            vim.keymap.set('n', '<space>D', vim.lsp.buf.type_definition, bufopts)
+            vim.keymap.set('n', '<space>rn', vim.lsp.buf.rename, bufopts)
+            vim.keymap.set('n', '<space>ca', vim.lsp.buf.code_action, bufopts)
+            vim.keymap.set('n', 'gr', vim.lsp.buf.references, bufopts)
+            vim.keymap.set('n', '<space>f', function() vim.lsp.buf.format { async = true } end, bufopts)
+          end
+
+          local lsp_flags = {
+            -- This is the default in Nvim 0.7+
+            debounce_text_changes = 150,
+          }
+
+          local servers = { 'clangd', 'rust_analyzer' }
+
+          for _, lsp in ipairs(servers) do
+            require'lspconfig'[lsp].setup(
+              vim.tbl_extend('keep',
+                require('coq').lsp_ensure_capabilities({
+                  on_attach = on_attach,
+                  flags = lsp_flags
+                }) or {},
+                require'lsp-status'.capabilities
+              )
+            )
+          end
+        '';
+      }
+      {
+        plugin = coq_nvim;
+        type = "lua";
+        config = ''
+          vim.g.coq_settings = { auto_start = 'shut-up', xdg = true }
+        '';
+      }
+      {
+        plugin = nvim-treesitter.withAllGrammars;
+	type = "lua";
+	config = ''
+	  require'nvim-treesitter.configs'.setup {
+            -- TODO: Make this use stdpath("data")
+            -- parser_install_dir = "~/.local/share/nvim/site",
+	    -- ensure_installed = { "nix", "help", "rust", "c", "lua" },
+	    -- auto_install = true,
+	    highlight = {
+	      enable = true
+	    },
+            incremental_selection = {
+              enable = true,
+              keymaps = {
+                init_selection = "gnn", -- set to `false` to disable one of the mappings
+                node_incremental = "grn",
+                scope_incremental = "grc",
+                node_decremental = "grm",
+	      }
+	    },
+	    indent = {
+	      enable = true
+	    },
+	  }
+          vim.cmd([[
+	    set foldmethod=expr
+            set foldexpr=nvim_treesitter#foldexpr()
+            set nofoldenable
+	  ]])
+	'';
+      }
+      {
+        plugin = telescope-nvim;
+      }
+    ];
+  };
 
     home.stateVersion = "23.11";
   };