Add exportvars feature

[brainstorm]

For quickly reusing tokens on arbitrary machines and instances one might be working on.

This is unsafe and dangerous, only use if you know what you are doing ;)

[codecov]

Codecov Report

Merging #11 into master will decrease coverage by 2.61%.
The diff coverage is 61.53%.

@@             Coverage Diff             @@
##            master      #11      +/-   ##
===========================================
- Coverage   100.00%   97.38%   -2.62%     
===========================================
  Files            1        1              
  Lines          181      191      +10     
===========================================
+ Hits           181      186       +5     
- Misses           0        5       +5     

Flag	Coverage Δ
#unittests	97.38% <61.53%> (-2.62%)	⬇️

Impacted Files	Coverage Δ
yawsso/cli.py	97.38% <61.53%> (-2.62%)	⬇️

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[brainstorm]

Ideally this should work like this:

$ aws sso login && yawsso -e | pbcopy

Unfortunately, yawsso prints quite a lot of INFO via the builtin logger... I reckon it should not output anything to be more UNIX friendly?

[victorskl]

Ideally this should work like this:

$ aws sso login && yawsso -e | pbcopy

Unfortunately, yawsso prints quite a lot of INFO via the builtin logger... I reckon it should not output anything to be more UNIX friendly?

Right! Why do I forget about pipe use case!! 😄 Sure, I will improve logging mechanism.

Merging this. Thanks Roman.