tail/error: Fix handling of TailError on windows when no path is avai…

…lable

src/uu/tail/src/error.rs

@@ -167,7 +167,7 @@ impl TailErrorHandler {
  false,
  )?;
  }
- TailError::Stat(_) | TailError::Read(_) => {
+ TailError::Stat(_) | TailError::Read(_) if self.input.path().is_some() => {
  // unwrap is safe here because only TailError::Open doesn't produce a File
  let file = file.unwrap();
  match file.metadata() {
@@ -189,6 +189,11 @@ impl TailErrorHandler {
  }
  }
  }
+ // FIXME: We're here on windows if the input was stdin, because we don't have a path on
+ // windows for stdin. Currently, the follow module depends on having a path for all
+ // inputs. This should be fixed. For now, we print the error message but don't follow
+ // the input and effectively do nothing.
+ TailError::Stat(_) | TailError::Read(_) => {}
  }
 
  Ok(())