Cloudpods/backend/vendor/yunion.io/x/pkg/prettytable/termwidth_unix.go

// Copyright 2019 Yunion

// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// +build !windows

package prettytable

import (
	"os"

	"golang.org/x/sys/unix"
)

func termWidth() (int, error) {
	fd := int(os.Stdout.Fd())
	wsz, err := unix.IoctlGetWinsize(fd, unix.TIOCGWINSZ)
	if err != nil {
		return -1, err
	}
	return int(wsz.Col), nil
}