Add option to make output quieter

[jafingerhut]

This is only a draft of a change to show the kind of change I am thinking about -- I do not expect this PR to be in its final form for merging.

The print() calls spread throughout shell.py, while probably exactly what someone wants when using p4runtime-shell interactively, can be fairly noisy in a situation where one is using p4runtime-shell in a batch situation, e.g. a PTF test. In such a context, it would be nice to have an option to make p4runtime-shell not do all of these print calls.

If this seems reasonable, I am open to suggestions on exactly how to control this printing on/off. For example, it would probably be nice for backwards compatibility to have these print calls enabled by default, and require some extra configuration call to the library that disables them.

[codecov-commenter]

Codecov Report

Merging #115 (b9bf2d0) into main (2603e13) will increase coverage by 0.04%. The diff coverage is 73.33%.

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@@            Coverage Diff             @@
##             main     #115      +/-   ##
==========================================
+ Coverage   68.30%   68.35%   +0.04%     
==========================================
  Files           8        8              
  Lines        2584     2588       +4     
==========================================
+ Hits         1765     1769       +4     
  Misses        819      819              

Impacted Files	Coverage Δ
p4runtime_sh/shell.py	67.60% <71.42%> (+0.06%)	:arrow_up:
p4runtime_sh/global_options.py	89.18% <100.00%> (ø)

[jafingerhut]

With commit 2 on this PR, it is backwards compatible with current behavior, and provides a new optional parameter to the setup method that lets the caller disable printing.

[jafingerhut]

Thanks for all of the detailed suggestions. As of commit 4 on this PR, I have made changes following your 'option 2' suggestion.

I am not familiar with Python enum, so please check whether my deletion of the line @enum.unique in global_options.py looks correct. I was getting errors after adding verbose = bool with that line left in there, but did not see how else I should have fixed that.

[antoninbas]

Thanks for all of the detailed suggestions. As of commit 4 on this PR, I have made changes following your 'option 2' suggestion.

I am not familiar with Python enum, so please check whether my deletion of the line @enum.unique in global_options.py looks correct. I was getting errors after adding verbose = bool with that line left in there, but did not see how else I should have fixed that.

You were right to remove it. As a matter of fact, I don't know why I made this class an Enum at all, that's doesn't look right.