nvim/lua/lsp/go.lua

return {
  capabilities = require('cmp_nvim_lsp').default_capabilities(),
  on_attach = function()
    G.api.nvim_create_user_command('R', G.run_cmd('go run %'), {})
    G.api.nvim_create_user_command('Rgin', G.run_cmd('go run ./main.go'), {})
  end
}