implement --offline flag

[jgimeno]

Closes: #5448

Description

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[codecov]

Codecov Report

Merging #5810 into master will decrease coverage by 0.2%.
The diff coverage is 31.25%.

@@            Coverage Diff            @@
##           master   #5810      +/-   ##
=========================================
- Coverage   32.51%   32.3%   -0.21%     
=========================================
  Files         346     353       +7     
  Lines       39012   39461     +449     
=========================================
+ Hits        12684   12749      +65     
- Misses      25061   25439     +378     
- Partials     1267    1273       +6

Impacted Files	Coverage Δ
x/auth/client/cli/tx_sign.go	0% <0%> (ø)
x/distribution/client/cli/tx.go	4.7% <0%> (ø)	⬆️
x/auth/client/cli/tx_multisign.go	0% <0%> (ø)
x/auth/client/tx.go	14.64% <0%> (ø)	⬆️
client/context/query.go	1.86% <0%> (ø)	⬆️
x/auth/client/cli/broadcast.go	84% <100%> (ø)
client/context/context.go	32.86% <75%> (+30.73%)	⬆️
x/auth/client/cli/encode.go	0% <0%> (ø)
... and 5 more

[alessio]

Good start! I'd love some test cases - at least to avoid code coverage to get even lower. Plus, all query commands should all fail if --offline is passed

[alexanderbez]

Looks great @jgimeno! Let's get a branch open against Gaia that tests this out.

[jgimeno]

Here is the branch using this changes cosmos/gaia#326

[alessio]

FTR @jgimeno and I are testing the changes with gaia

[alexanderbez]

Please merge when thorough testing has been performed @alessio.

[alessio]

Manual testing passed. We're now investigating into the drop of coverage stats.

[alessio]

Just a minor thing left, otherwise this is good to go

Dismissing review as per #5810 (comment)