Modify script to support CLI arguments.

[a-t-0]

The usage should be analog to what is described here. In essence:
running:
productivity-install.sh
should return the usage, like:

run `productivity-install.sh --choice` to manually select which elements you want to install and configure.
run `productivity-install.sh --language-tool` to automatically install language-tool
run `productivity-install.sh --latex` to automatically install latex
run `productivity-install.sh --gitlab ssh tor` to automatically install GitLab, set up your ssh and host it over tor.
etc.

Ps. I think arguments like --gitlab ssh tor might cause a problem, because it may expect only 1 space separated argument, so either ssh or tor so perhaps find a clever way to support passing multiple configuration parameters.

Similarly build an interface for the productivity-uninstall.sh

An example of how to set up such command line argument parsing can be found here for install:
https://github.com/Deployment-Oneliners/Self-host-GitLab-Server-and-Runner-CI/blob/master/install_gitlab.sh
and here for uninstall:
https://github.com/Deployment-Oneliners/Self-host-GitLab-Server-and-Runner-CI/blob/master/uninstall_gitlab.sh

[Prashant937]

Do we need to create this productivity.sh file, or it is there?

[a-t-0]

Thank you for your question! The answer is no, it is there, except it is currently called main.sh. FYI, here is an example of the argument passing style (such that it can be tested): https://github.com/Simple-Setup/Self-host-GitLab-Server-and-Runner-CI/blob/develop/install_gitlab.sh and here is an example on how to test if the argument parsing returns the right responses: https://github.com/Simple-Setup/Self-host-GitLab-Server-and-Runner-CI/blob/develop/test/test_uninstall.bats I would like to express slight preference to a relatively similar filestructure for the productivity-install.sh/main.sh file.

Of course you are free to do as you think is best.

[Prashant937]

okay