Merge branch 'abrander-dont-panic'

input_posix.go

@@ -4,6 +4,7 @@
 package prompt
 
 import (
+ "os"
  "syscall"
 
  "github.com/c-bata/go-prompt/internal/term"
@@ -20,7 +21,9 @@ type PosixParser struct {
 // Setup should be called before starting input
 func (t *PosixParser) Setup() error {
  in, err := syscall.Open("/dev/tty", syscall.O_RDONLY, 0)
- if err != nil {
+ if os.IsNotExist(err) {
+ in = syscall.Stdin
+ } else if err != nil {
  panic(err)
  }
  t.fd = in
@@ -59,7 +62,12 @@ func (t *PosixParser) Read() ([]byte, error) {
 func (t *PosixParser) GetWinSize() *WinSize {
  ws, err := unix.IoctlGetWinsize(t.fd, unix.TIOCGWINSZ)
  if err != nil {
- panic(err)
+ // If this errors, we simply return the default window size as
+ // it's our best guess.
+ return &WinSize{
+ Row: 25,
+ Col: 80,
+ }
  }
  return &WinSize{
  Row: ws.Row,