40 lines
761 B
Go
40 lines
761 B
Go
// +build !windows
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package common
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// Imports for determining terminal information across platforms
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import (
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"os"
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"golang.org/x/sys/unix"
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)
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// posix api
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func platformGetTerminalDimensions() (width, height int, err error) {
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// grab the handle to stdin
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// XXX: in some cases, packer closes stdin, so the following can't be guaranteed
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/*
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tty := os.Stdin
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*/
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// open up a handle to the current tty
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tty, err := os.Open("/dev/tty")
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if err != nil {
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return 0, 0, err
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}
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defer tty.Close()
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// convert the handle into a file descriptor
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fd := int(tty.Fd())
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// use it to make an Ioctl
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ws, err := unix.IoctlGetWinsize(fd, unix.TIOCGWINSZ)
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if err != nil {
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return 0, 0, err
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}
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// return the width and height
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return int(ws.Col), int(ws.Row), nil
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}
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