allow deletion without using TUI

[michaelchadwick]

Problem
It would be nice to be able to use npkill without using the TUI as it is a potential extra step/click/key and a slight(:-P) performance impediment.

Solution
Add a command line argument that skips the UI, runs npkill deletion service, and displays results on command line.

Alternative
The best set of arguments I have found thus far is npx npkill -D -x -y -nu which deletes node_modules, skips hidden stuff, auto-confirms, doesn't check for updates, but still requires an exit of the TUI.

[mfer725]

Great suggestion, I need this too, especially in the CI process, where it is necessary to automatically execute the subsequent scripts.

[craigryan]

I have a similar requirement, to have a proper non-interactive mode so i can call this as a CI script. The -D option suggests non-interactive but we also define the -y option. This is described as "Avoid displaying a warning when executing --delete-all" rather than acting as a non-interactive input mode.

A simple test is to pipe npkill through cat (npkill | cat) which confirms the command needs a TTY: "Oh no! Npkill does not support this terminal (TTY is required). This is a bug, which has to be fixed. Please try another command interpreter (for example, CMD in windows)".

It would be great to remove this condition and fix the bug as mentioned, (with -D and/or -y) to run non interactively. Thanks!