Viu locks up when no image path is provided

[AaronViviano]

Hello Atanas,
First, thanks for the great utility. Its worked well with VS Code's remote terminal.

Second, for the issue in question I've noticed that if you don't provide a path to a file Viu simple hangs in the terminal. It does not respond to force kill command, at least with VS Code.

Linux Instance:
NAME="Ubuntu"
VERSION="16.04.6 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.6 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial

VS Code:
Version: 1.41.1
Commit: 26076a4de974ead31f97692a0d32f90d735645c0
Date: 2019-12-18T14:57:51.166Z
Electron: 6.1.5
Chrome: 76.0.3809.146
Node.js: 12.4.0
V8: 7.6.303.31-electron.0
OS: Darwin x64 19.2.0

Regards,
Aaron

[atanunq]

Hi Aaron,

Thanks for the kind words.
Hanging is the expected behaviour because when no path is given, viu will try to read an image from stdin, i.e make curl imageUrl | viu possible. It is unfortunate that no message is provided when stdin is empty.
However, sending an EOF with Ctrl-D will get you out. I will add information about this in the readme since it is quite unintuitive to hang like that.
Thanks for the issue!

Best,
Atanas

[AaronViviano]

Hello Atanas,
You are welcome and thank you for the response. Glad to see the option now for reading stdin in #32. Thats a great improvement and a much better default experience.

Regards,
Aaron