fix some lsp stuff for quick fix support

nvim/ftplugin/c.lua

@@ -1,6 +1,6 @@
 -- Exit if the language server isn't available
 if vim.fn.executable('clangd') ~= 1 then
-    return
+  return
 end
 
 local root_files = {
@@ -8,9 +8,12 @@ local root_files = {
   'src',
 }
 
+local lsp = require('user.lsp')
+
 vim.lsp.start {
   name = 'clangd',
   cmd = { 'clangd' },
   root_dir = vim.fs.dirname(vim.fs.find(root_files, { upward = true })[1]),
-  capabilities = require('user.lsp').make_client_capabilities(),
+  capabilities = lsp.make_client_capabilities(),
+  on_attach = lsp.on_attach,
 }

nvim/ftplugin/java.lua

@@ -8,6 +8,8 @@ local root_files = {
   'Main.java',
 }
 
+local lsp = require('user.lsp')
+
 -- Tab Width
 vim.bo.tabstop = 4
 vim.bo.shiftwidth = 4
@@ -17,7 +19,8 @@ vim.lsp.start {
   name = 'jdtls',
   cmd = { 'jdtls' },
   root_dir = vim.fs.dirname(vim.fs.find(root_files, { upward = true })[1]),
-  capabilities = require('user.lsp').make_client_capabilities(),
+  capabilities = lsp.make_client_capabilities(),
+  on_attach = lsp.on_attach,
   settings = {
     java = {
       format = {

nvim/ftplugin/nix.lua

@@ -8,9 +8,12 @@ local root_files = {
   '.git',
 }
 
+local lsp = require('user.lsp')
+
 vim.lsp.start {
   name = 'nixd',
   cmd = { 'nixd' },
   root_dir = vim.fs.dirname(vim.fs.find(root_files, { upward = true })[1]),
-  capabilities = require('user.lsp').make_client_capabilities(),
+  capabilities = lsp.make_client_capabilities(),
+  on_attach = lsp.on_attach,
 }

nvim/lua/user/lsp.lua

@@ -20,4 +20,30 @@ function M.make_client_capabilities()
   return capabilities
 end
 
+---Setup LSP keymaps for the current buffer
+---@param bufnr number Buffer number
+function M.setup_keymaps(bufnr)
+  -- Create a shorthand for mapping keys
+  local opts = { noremap = true, silent = true, buffer = bufnr }
+
+  -- Code actions
+  vim.keymap.set('n', '<leader>ca', vim.lsp.buf.code_action, opts)
+  -- Quick fix
+  vim.keymap.set('n', '<leader>qf', vim.lsp.buf.code_action, opts)
+  -- Apply first available code action
+  vim.keymap.set('n', '<leader>af', function()
+    vim.lsp.buf.code_action {
+      filter = function(action)
+        return action.isPreferred
+      end,
+      apply = true,
+    }
+  end, opts)
+end
+
+-- Attach keymaps when LSP client attaches to a buffer
+function M.on_attach(client, bufnr)
+  M.setup_keymaps(bufnr)
+end
+
 return M

nvim/plugin/keymaps.lua

@@ -57,9 +57,6 @@ vim.api.nvim_set_keymap(
   { noremap = true, silent = true, desc = 'debugger [r]epl' }
 )
 
--- LSP Fix
-vim.keymap.set('n', '<leader>f', vim.lsp.buf.code_action, { noremap = true, silent = true, desc = 'Code Action' })
-
 -- Window Resizing
 vim.keymap.set('n', '<C-Left>', '<cmd>vertical resize -2<CR>', { noremap = true, silent = true })
 vim.keymap.set('n', '<C-Right>', '<cmd>vertical resize +2<CR>', { noremap = true, silent = true })