Disable color outputs using NO_COLOR env var

[rishinair11]

Proposed Changes

Setting this environment variable will not wrap the text in ANSI color codes, so that we can print a raw output.
This helps us a lot when piping the output to a text file, ANSI color codes make it difficult to read through the output in a text editor.

Types of Changes

Introduced a new environment variable called NO_COLOR.
NO_COLOR=1 will disable the wrapping of output text in ANSI color codes.
Default functionality will be maintained if the env var is not set at all.

Verification

Testing

Ran this suit of tests:

• Default usage:
  
• Usage with NO_COLOR env var:
  
  NO_COLOR can be set to whatever.

Linked Issues

• Add option to disable colors in check-config output. #9355

User-Facing Change

To enable raw output for the `check-config` subcommand, you may now set NO_COLOR=1

Further Comments

Let me know if the variable name is not suitable, or any other questions/discussions. Will be happy to refactor my solution if needed.

[brandond]

this seems fine, but an even more minimal change might be to make color() return early if this env var is set?

Also, I think NO_COLOR is a more widely supported variable to use for this. If it is set to anything other than an empty string, color output should be suppressed.

[rishinair11]

Yeah that makes sense.
I changed RAW_OUTPUT -> NO_COLOR and changed the behaviour to check if NO_COLOR is set anything other than an empty string, color output will be suppressed.
e21f1d7

I'll also update the PR name and description to reflect these new changes.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 41.93%. Comparing base (57482a1) to head (e21f1d7).
Report is 48 commits behind head on master.

❗ Current head e21f1d7 differs from pull request most recent head 91b948f. Consider uploading reports for the commit 91b948f to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9357      +/-   ##
==========================================
- Coverage   45.69%   41.93%   -3.76%     
==========================================
  Files         154      154              
  Lines       16623    13523    -3100     
==========================================
- Hits         7596     5671    -1925     
+ Misses       7814     6735    -1079     
+ Partials     1213     1117      -96     

Flag	Coverage Δ
e2etests	?
inttests	38.49% <ø> (+0.91%)	⬆️
unittests	15.96% <ø> (+0.54%)	⬆️

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[rishinair11]

Thank you for the review @brandond.
Is there something more I have to do to get this merged? Let me know, thank you.

[brandond]

No, you are set. We are working through some issues with scheduling work for the next release cycle, so this may remain on hold for a bit longer.