Usability: print credentials success message

[tjbaker]

I'd love to see a summary success message like the following:

https://github.com/ThoughtWorksInc/aws_role_credentials/blob/master/aws_role_credentials/actions.py#L27-L33

Related, this project prints an export statement though I wonder how often it is used. This project encourages the use of the profile best practice, so wonder why people need to export the vars.

[mide]

That's a very valid question. I think we could add a flag -e, --export to output only the export line, and by default print something more human friendly.

That would also make it easier to use this tool with other scripts:

...
$(aws-google-auth ...)
...

instead of

...
$(aws-google-auth ... | tail -n 1)
...

[nonspecialist]

yes, I added that because my initial workflow was to do something like eval $(aws-google-auth | grep export) (not exactly, but you get the idea). Having it an option flag would make this cleaner while retaining the functionality.