feat: more work on nvim config

dotfiles/neovim/lua/my/keymaps.lua

@@ -13,7 +13,8 @@ function M.mapSilent(mode, lhs, rhs, opts)
 end
 
 function M.setup()
-    M.map("i", "jj", "<Esc>") -- Remap Esc to 
+    M.map("i", "jj", "<Esc>") -- Remap Esc to jj
+    M.map("n", "<Space><Space>", ":w<cr>") -- Double space to sace
 end
 
 return M

dotfiles/neovim/lua/my/plugins/init.lua

@@ -6,6 +6,7 @@ function M.setup()
 
     -- Other unconfigured plugins
     require('nvim-autopairs').setup()
+    require('nvim_comment').setup()
 end
 
 return M

dotfiles/neovim/lua/my/plugins/lspconfig.lua

@@ -1,16 +1,51 @@
+local cmd = vim.cmd
 local M = {}
 
+-- Command for formatting lua code
+local formatLua = "lua-format -i --no-keep-simple-function-one-line --no-break-after-operator --column-limit=150 --break-after-table-lb"
+
 -- Use a loop to conveniently call 'setup' on multiple servers and
 -- map buffer local keybindings when the language server attaches
-local servers = { "tsserver", "purescriptls" }
+local servers = {
+    tsserver = {settings = {}, cmd = nil},
+    sumneko_lua = {
+        settings = {
 
-function M.map(buf, mode, lhs, rhs, opts)
-  local options = { noremap=true, silent=true }
+            Lua = {
+                runtime = {
+                    -- Tell the language server which version of Lua you're using (most likely LuaJIT in the case of Neovim)
+                    version = 'LuaJIT',
+                    -- Setup your lua path
+                    path = runtime_path
+                },
+                diagnostics = {
+                    -- Get the language server to recognize the `vim` global
+                    globals = {'vim'}
+                },
+                workspace = {
+                    -- Make the server aware of Neovim runtime files
+                    library = vim.api.nvim_get_runtime_file("", true)
+                },
+                -- Do not send telemetry data containing a randomized but unique identifier
+                telemetry = {enable = false}
+            }
+        },
+        cmd = {"lua-language-server"}
+    },
+    purescriptls = {
+        settings = {purescript = {censorWarnings = {"UnusedName", "ShadowedName", "UserDefinedWarning"}, formatter = "purs-tidy"}},
+        cmd = nil
+    },
+    rnix = {settings = {}, cmd = nil}
+}
+
+local function map(buf, mode, lhs, rhs, opts)
+    local options = {noremap = true, silent = true}
     if opts then options = vim.tbl_extend('force', options, opts) end
-  map(buf, mode, lhs, rhs, options)
+    vim.api.nvim_buf_set_keymap(buf, mode, lhs, rhs, options)
 end
 
-function on_attach(client, bufnr)
+local function on_attach(client, bufnr)
     -- Enable completion triggered by <c-x><c-o>
     vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')
 
@@ -37,14 +72,28 @@ function on_attach(client, bufnr)
 end
 
 function M.setup()
-    for _, lsp in pairs(servers) do
+    -- Setup basic language servers
+    for lsp, details in pairs(servers) do
         require('lspconfig')[lsp].setup {
             on_attach = on_attach,
+            settings = details.settings, -- Specific per-language settings
             flags = {
-                debounce_text_changes = 150, -- This will be the default in neovim 0.7+
-            }
+                debounce_text_changes = 150 -- This will be the default in neovim 0.7+
+            },
+            cmd = details.cmd
         }
     end
+
+    -- Setup auto-formatting
+    require"lspconfig".efm.setup {
+        init_options = {documentFormatting = true},
+        filetypes = {"lua"},
+        settings = {rootMarkers = {".git/"}, languages = {lua = {{formatCommand = formatLua, formatStdin = true}}}}
+    }
+
+    -- Auto format lua stuff
+    cmd("autocmd BufWritePre *.lua lua vim.lsp.buf.formatting_sync(nil, 100)")
+    -- cmd("autocmd BufWritePre nix vim.lsp.buf.formatting_sync(nil, 100)")
 end
 
 return M

modules/applications/neovim.nix

@@ -4,7 +4,9 @@ let
     name = "config-nvim";
     src = ../../dotfiles/neovim;
   };
-in {
+in
+
+{
 	 home-manager.users.adrielus.programs.neovim = {
     enable = true;
     package = pkgs.neovim-nightly;
@@ -14,13 +16,18 @@ in {
       luafile ${config-nvim}/init.lua
     '';
 
-    extraPackages = [
-      pkgs.fzf # Required by lua-fzf
+    extraPackages = with pkgs; [
+      fzf # Required by lua-fzf
 
       # Language servers
-      pkgs.nodePackages.typescript
-      pkgs.easy-purescript-nix.purescript-language-server
+      nodePackages.typescript # typescript
+      easy-purescript-nix.purescript-language-server # purescript
+      sumneko-lua-language-server # lua
+      efm-langserver # auto-formatting
+      rnix-lsp # nix
 
+      # Formatters
+      luaformatter # lua
     ];
 
     plugins = with pkgs.vimPlugins;
@@ -30,6 +37,8 @@ in {
         nvim-lspconfig # configures lsps for me
         nvim-autopairs # close pairs for me
         fzf-lua # fuzzy search for say opening files
+        purescript-vim # purescript syntax highlighting
+        nvim-comment # allows toggling line-comments
       ];
   };
 }