Ags is using old UnixOutputStream and its apparently crashing ags

[Seme4eg]

Code:

function Backlight() {
  let brightness = Variable("0", {
    listen: [
      ['bash', '-c', '/home/earthian/dotfiles/.config/eww/scripts/backlight'],
      out => Number(out).toFixed(0)
    ],
  })

  return Widget.Overlay({
    className: "backlight",
    child: Widget.CircularProgress({
      css: 'min-height: 10px;'
        + 'font-size: 3px;',
      value: brightness.bind()
    }),
    overlays: [
      Widget.Label({
        className: "circle-text",
        label: "󰃝"
      }),
    ]
  })
}

Error:

(com.github.Aylur.ags:975768): Gjs-WARNING **: 20:31:05.665: Gio.UnixOutputStream has been moved to a separate platform-specific library. Please update your code to use GioUnix.OutputStream instead.
0 subprocess() ["resource:///com/github/Aylur/ags/utils/exec.js":27:23]
1 startListen() ["resource:///com/github/Aylur/ags/variable.js":88:27]
2 Variable() ["resource:///com/github/Aylur/ags/variable.js":30:17]
3 default() ["resource:///com/github/Aylur/ags/variable.js":130:35]
4 Backlight() ["file:///home/earthian/.config/ags/js/right_center.js":65:27]
5 RCenter() ["file:///home/earthian/.config/ags/js/right_center.js":10:6]
6 Right() ["file:///home/earthian/.config/ags/js/right.js":12:6]
7 Bar() ["file:///home/earthian/.config/ags/config.js":41:18]
8 <TOP LEVEL> ["file:///home/earthian/.config/ags/config.js":49:4]
9 _init/GLib.MainLoop.prototype.runAsync/</<() ["resource:///org/gnome/gjs/modules/core/overrides/GLib.js":266:33]"

The script itself works just fine with eww and is just a oneliner:

#!/usr/bin/env bash

brillo
udevadm monitor | rg --line-buffered "backlight" | while read -r _; do brillo; done

[kotontrion]

ags is not using Gio.UnixOutputStreamdirectly. ags uses Gio.Subprocesswhich then creates the streams. Therefore this is not an ags issue and has to be fixed in gjs, which already happened. The fix will then be included in the next gjs release.