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Fix existing LGTM issues #4592

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merged 1 commit into from
Mar 28, 2022
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A few warnings have been detected in the code by lgtm.com
https://lgtm.com/projects/g/tektoncd/pipeline/alerts/?mode=list

  • Two "Useless assignment to local variable" (innocuous)
  • One "Useless assignment to local variable" - small bug
  • One "Missing error check" (innocuous)

Fixing all of them in this PR.

Signed-off-by: Andrea Frittoli [email protected]

/kind cleanup

Submitter Checklist

As the author of this PR, please check off the items in this checklist:

  • Docs included if any changes are user facing
  • Tests included if any functionality added or changed
  • Follows the commit message standard
  • Meets the Tekton contributor standards (including
    functionality, content, code)
  • Release notes block below has been filled in or deleted (only if no user facing changes)

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NONE

A few warnings have been detected in the code by lgtm.com
https://lgtm.com/projects/g/tektoncd/pipeline/alerts/?mode=list

- Two "Useless assignment to local variable" (innocuous)
- One "Useless assignment to local variable" - small bug
- One "Missing error check" (innocuous)

Fixing all of them in this PR.

Signed-off-by: Andrea Frittoli <[email protected]>
@tekton-robot tekton-robot added release-note-none Denotes a PR that doesnt merit a release note. kind/cleanup Categorizes issue or PR as related to cleaning up code, process, or technical debt. labels Feb 17, 2022
@tekton-robot tekton-robot added the size/S Denotes a PR that changes 10-29 lines, ignoring generated files. label Feb 17, 2022
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The following is the coverage report on the affected files.
Say /test pull-tekton-pipeline-go-coverage to re-run this coverage report

File Old Coverage New Coverage Delta
pkg/reconciler/pipelinerun/pipelinerun.go 83.9% 83.7% -0.2

@@ -967,11 +967,9 @@ func combineTaskRunAndTaskSpecLabels(pr *v1beta1.PipelineRun, pipelineTask *v1be
tsLabels = pipelineTask.TaskSpecMetadata().Labels
}

labels := make(map[string]string, len(trLabels)+len(tsLabels))
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thanks @afrittoli but I think there was a reason to implement it using make here. From what I can recall, labels is suppose to initialize a new map rather than referencing the same map trLabels. The reason being, updating labels will also update the tsLabels. At the same time, I am surprised its not caught by any of the existing unit tests.

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Thanks @pritidesai - the change I made behaves like the current code. Even if labels is initialised via make, it's then overwritten by the line labels = trLabels, which renders the make line not effective - which is the reason it triggered the issue on https://lgtm.com/projects/g/tektoncd/pipeline/alerts/?mode=list.

If you want labels to not be the same map as trLabels, you will have to copy the elements from the original map one by one. If that is the desired behaviour, we can do that, but like you said we should have that covered by unit tests as well :)

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/test pull-tekton-pipeline-alpha-integration-tests

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/retest

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ghost commented Mar 2, 2022

/lgtm

@tekton-robot tekton-robot assigned ghost Mar 2, 2022
@tekton-robot tekton-robot added the lgtm Indicates that a PR is ready to be merged. label Mar 2, 2022
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/lgtm

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: vdemeester

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@tekton-robot tekton-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Mar 25, 2022
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/test pull-tekton-pipeline-alpha-integration-tests

@tekton-robot tekton-robot merged commit 23ffdba into tektoncd:main Mar 28, 2022
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4 participants