local attachment = function(client, bufnr)
	local opts = { noremap=true, silent=true }
	vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gD', '<cmd>lua vim.lsp.buf.declaration()<CR>', opts)
	vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gd', '<cmd>lua vim.lsp.buf.definition()<CR>', opts)
	vim.api.nvim_buf_set_keymap(bufnr, 'n', 'K', '<cmd>lua vim.lsp.buf.hover()<CR>', opts)
	vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>', opts)
	vim.api.nvim_buf_set_keymap(bufnr, 'n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>', opts)
	vim.api.nvim_buf_set_keymap(bufnr, 'n', '<space>wa', '<cmd>lua vim.lsp.buf.add_workspace_folder()<CR>', opts)
	vim.api.nvim_buf_set_keymap(bufnr, 'n', '<space>wr', '<cmd>lua vim.lsp.buf.remove_workspace_folder()<CR>', opts)
	vim.api.nvim_buf_set_keymap(bufnr, 'n', '<space>wl', '<cmd>lua print(vim.inspect(vim.lsp.buf.list_workspace_folders()))<CR>', opts)
	vim.api.nvim_buf_set_keymap(bufnr, 'n', '<space>D', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
	vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gr', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
	vim.api.nvim_buf_set_keymap(bufnr, 'n', 'ga', '<cmd>lua vim.lsp.buf.code_action()<CR>', opts)
	vim.api.nvim_buf_set_keymap(bufnr, 'n', '<space>f', '<cmd>lua vim.lsp.buf.format({async = true})<CR>', opts)
	vim.api.nvim_buf_set_keymap(bufnr, 'n', 'ge', '<cmd>lua vim.diagnostic.open_float()<CR>', opts)
	vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gn', '<cmd>lua vim.diagnostic.goto_next()<CR>', opts)

	if client.resolved_capabilities.document_formatting then
		vim.api.nvim_command [[augroup Format]]
		vim.api.nvim_command [[autocmd! * <buffer>]]
		vim.api.nvim_command [[autocmd BufWritePre <buffer> lua vim.lsp.buf.formatting_seq_sync()]]
		vim.api.nvim_command [[augroup END]]
	end
end

local servers = { 'pyright', 'rust_analyzer', 'clangd' }
for _, lsp in pairs(servers) do
	require('lspconfig')[lsp].setup {
		on_attach = attachment
	}
end