make has_plugin detection method more reliable

[joschi36]

SUMMARY

This PR makes the plugin detection method more reliable.
The issue before was that when you had multiple plugins it wouldn't split at the right point. This method just loops through the list and searches the start of the string for the plugin name.

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

helm

ADDITIONAL INFORMATION

Why the method before was a problem: With multiple plugins with different plugin name lengths installed the detection method failed.

NAME    	VERSION       	DESCRIPTION                                                                         
diff    	3.1.3         	Preview helm upgrade changes as a diff                                              
helm-git	0.8.1         	Get non-packaged Charts directly from Git.                                          
unittest	0.1.6-rancher1	Unit test for helm chart in YAML with ease to keep your chart functional and robust.

So my line is diff\s\s\s\s\s\t3.1.3[...] and the result variable name with the behavior before was diff\s\s\s\s\s which unfortunately wasn't equal to ´diff´
I hope I could explain it well, If you have an additional question please ask.

/cc @gravesm

[codecov]

Codecov Report

Merging #362 (72b7772) into main (92e3732) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #362   +/-   ##
=======================================
  Coverage   36.80%   36.80%           
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  Files           3        3           
  Lines         758      758           
  Branches      148      148           
=======================================
  Hits          279      279           
  Misses        430      430           
  Partials       49       49           

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[gravesm]

@joschi36 thank you for the PR. I think the better solution here would be to just change it to line.split(None, 1). If you searched for a plugin named foo but had one named foobar installed then using startswith("foo") would lead to a false positive.

Also, could you add a changelog fragment? https://docs.ansible.com/ansible/latest/community/development_process.html#creating-a-changelog-fragment

[joschi36]

Thanks for the feedback. I first also thought on doing that, however I choose to use the more simple variant. But yes you are totally right. I will update the PR with this change and also with the change log fragment.

[joschi36]

@gravesm I have updated the PR

[gravesm]

Just a couple minor nits. Since this gets turned into rst those should be double backticks. Could you also add the link to this PR at the end in parentheses? There are a few examples here: https://docs.ansible.com/ansible/latest/community/development_process.html#creating-a-changelog-fragment.

Thanks for your work on this!

[joschi36]

@gravesm I have fixed the double backticks.

[gravesm]

Thank you for your contribution, @joschi36!

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