add flake8 and improve nvim-tree

modules/editor/neovim/lua/packer/lsp.lua

@@ -14,9 +14,8 @@ M.packer = function(use)
                 return vim.fn.executable(program) == 1
             end
 
-            local capabilities = require("cmp_nvim_lsp").update_capabilities(
+            local capabilities =
-                vim.lsp.protocol.make_client_capabilities()
+                require("cmp_nvim_lsp").update_capabilities(vim.lsp.protocol.make_client_capabilities())
-            )
             if on_path("lua-language-server") then
                 require("lspconfig").sumneko_lua.setup({
                     capabilities = capabilities,
@@ -93,6 +92,11 @@ M.packer = function(use)
                             return on_path("black")
                         end,
                     }),
+                    require("null-ls").builtins.diagnostics.flake8.with({
+                        condition = function()
+                            return on_path("flake8")
+                        end,
+                    }),
                     require("null-ls").builtins.formatting.fish_indent.with({
                         condition = function()
                             return on_path("fish_indent")

modules/editor/neovim/lua/packer/visuals.lua

@@ -71,6 +71,11 @@ M.packer = function(use)
             require("nvim-tree").setup({
                 disable_netrw = true,
                 hijack_netrw = true,
+                update_focused_file = {
+                    enable = true,
+                    update_cwd = true,
+                    ignore_list = {},
+                },
                 diagnostics = {
                     enable = true,
                     icons = {

modules/programming/python.nix

@@ -6,6 +6,7 @@
       # python310 # Standard Python interpreter
       nodePackages.pyright # Python language server
       black # Python formatter
+      python310Packages.flake8 # Python linter
     ];
 
     programs.fish.shellAbbrs = { py = "python3"; };