mirror of https://github.com/junegunn/fzf
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
55 lines
923 B
Go
55 lines
923 B
Go
//go:build !windows
|
|
|
|
package tui
|
|
|
|
import (
|
|
"os"
|
|
"sync/atomic"
|
|
"syscall"
|
|
)
|
|
|
|
var devPrefixes = [...]string{"/dev/pts/", "/dev/"}
|
|
|
|
var tty atomic.Value
|
|
|
|
func ttyname() string {
|
|
if cached := tty.Load(); cached != nil {
|
|
return cached.(string)
|
|
}
|
|
|
|
var stderr syscall.Stat_t
|
|
if syscall.Fstat(2, &stderr) != nil {
|
|
return ""
|
|
}
|
|
|
|
for _, prefix := range devPrefixes {
|
|
files, err := os.ReadDir(prefix)
|
|
if err != nil {
|
|
continue
|
|
}
|
|
|
|
for _, file := range files {
|
|
info, err := file.Info()
|
|
if err != nil {
|
|
continue
|
|
}
|
|
if stat, ok := info.Sys().(*syscall.Stat_t); ok && stat.Rdev == stderr.Rdev {
|
|
value := prefix + file.Name()
|
|
tty.Store(value)
|
|
return value
|
|
}
|
|
}
|
|
}
|
|
return ""
|
|
}
|
|
|
|
// TtyIn returns terminal device to read user input
|
|
func TtyIn() (*os.File, error) {
|
|
return openTtyIn()
|
|
}
|
|
|
|
// TtyIn returns terminal device to write to
|
|
func TtyOut() (*os.File, error) {
|
|
return openTtyOut()
|
|
}
|