Unify the true/false settings in our code

[gdha]

We have too many ways of defining a variable to be true of false, e.g.

VAR=
VAR=y
VAR=YES
VAR=1
VAR=yes

Maybe, we better create a simple function to unify this?
Feedback welcome...

[schlomo]

+1

Do we have tri-states? Like Yes/No/Auto? Or Yes/No/Unset?

[jsmeix]

When there is one or more common functions it can be enhanced as needed to test for as many states as needed like yes/no/auto/unset/default/...

I wonder if it is possible to test that common functions are actually used everywhere? In other words: How to find all places in the code that would need to be unified?

[gdha]

There is no need to change all code at one moment - whenever, we feel the need (or come across one piece of code) we can change it...

[jsmeix]

You are right.

Same reasoning as my own comment ("can be enhanced as needed"). Somehow I failed to apply my own reasoning to my own question ;-)

[gdha]

Function seems to work. It is now just a question of using it when we come across a script which uses a non standard test for true/fasle.
Added an example to https://github.com/rear/rear/wiki/Coding-Style