mirror of
https://github.com/restic/restic.git
synced 2025-10-31 13:21:01 +00:00
34 lines
977 B
Go
34 lines
977 B
Go
// +build !windows
|
|
|
|
package termstatus
|
|
|
|
import (
|
|
"io"
|
|
"syscall"
|
|
"unsafe"
|
|
|
|
isatty "github.com/mattn/go-isatty"
|
|
)
|
|
|
|
// clearLines will clear the current line and the n lines above. Afterwards the
|
|
// cursor is positioned at the start of the first cleared line.
|
|
func clearLines(wr io.Writer, fd uintptr) clearLinesFunc {
|
|
return posixClearLines
|
|
}
|
|
|
|
// canUpdateStatus returns true if status lines can be printed, the process
|
|
// output is not redirected to a file or pipe.
|
|
func canUpdateStatus(fd uintptr) bool {
|
|
return isatty.IsTerminal(fd)
|
|
}
|
|
|
|
// getTermSize returns the dimensions of the given terminal.
|
|
// the code is taken from "golang.org/x/crypto/ssh/terminal"
|
|
func getTermSize(fd uintptr) (width, height int, err error) {
|
|
var dimensions [4]uint16
|
|
|
|
if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, uintptr(syscall.TIOCGWINSZ), uintptr(unsafe.Pointer(&dimensions)), 0, 0, 0); err != 0 {
|
|
return -1, -1, err
|
|
}
|
|
return int(dimensions[1]), int(dimensions[0]), nil
|
|
}
|