environment-variables

On lines
https://github.com/rochacbruno/dynaconf/blob/master/dynaconf/validator.py#L202-L205

validators.validate is calling from_env and it makes the variables to be reloaded from source files.

This is not good for testing.

Solution:

1. Check if validation is happening on the same current env, then don't reload
2. accept argument reload=False that will cause those lines to pass

I've noticed that when reading a config file with a field that is not available in env, its custom function won't run.

The reason seems to be that for these kind of fields, parseValue won't be called and therefore the corresponding custom function.

Custom functions runs only if the field was provided as an env argument or with

I want to add support for the -v(--variables) operation that currently exists in the gettext version.
more info here

In the README you can find an example related to spf13/Cobra package. We need similar example but for another cli library :)