refactor: make command accessible in option parser

[wangxiaoxuan273]

What this PR does / why we need it:

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #1301

Please check the following list:

• Does the affected code have corresponding tests, e.g. unit test, E2E test?
• Does this change require a documentation update?
• Does this introduce breaking changes that would require an announcement or bumping the major version?
• Do all new files have an appropriate license header?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.35%. Comparing base (c24ac15) to head (50b889a).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1315      +/-   ##
==========================================
+ Coverage   82.30%   82.35%   +0.04%     
==========================================
  Files          83       83              
  Lines        4036     4036              
==========================================
+ Hits         3322     3324       +2     
+ Misses        494      492       -2     
  Partials      220      220              

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[qweeah]

LGTM with suggestion.