my demo first config lua

back/lua/alpha/lsp/attach.lua

@@ -0,0 +1,29 @@
+local telescope_mapper = require "alpha.telescope.mappings"
+
+return function(client, bufnr)
+  -- keymaps for lsp
+  vim.keymap.set("n", "K", vim.lsp.buf.hover, { buffer = 0, desc = "LSP Help information of symbol under the cursor" })
+  vim.keymap.set("n", "<leader>vrn", vim.lsp.buf.rename, { buffer = 0, desc = "LSP Rename symbol under cursor" })
+  vim.keymap.set("i", "<c-h>", vim.lsp.buf.signature_help, { buffer = 0, desc = "LSP Signature help" })
+  vim.keymap.set("n", "<leader>vo", ":LspRestart<cr>", { noremap = true, desc = "LSP Restart Server" })
+  vim.keymap.set({ "n", "v" }, "<leader>vca", vim.lsp.buf.code_action, { buffer = 0, desc = "LSP Code actions" })
+  vim.keymap.set("n", "<leader>vf", function()
+    return vim.lsp.buf.format {
+      async = true,
+      filter = function(cli)
+        return cli.name ~= "lua_ls"
+      end,
+    }
+  end, { buffer = 0, desc = "LSP format file" })
+
+  telescope_mapper("gr", "lsp_references", { buffer = true, desc = "LSP References of symbol on cursor" })
+  telescope_mapper("<leader>pv", "find_symbol", { buffer = true, desc = "LSP find symbol on the project" })
+  telescope_mapper("<leader>pd", "lsp_document_symbols", { buffer = true, desc = "LSP document symbols" })
+  telescope_mapper("gd", "lsp_definitions", { buffer = true, desc = "LSP go to definition" })
+
+  vim.bo.omnifunc = "v:lua.vim.lsp.omnifunc"
+
+  if client.server_capabilities.inlayHintProvider then
+    vim.lsp.inlay_hint(bufnr, true)
+  end
+end