refactor: use a pointer for field: skipAnalysis in Canary object#2
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refactor: use a pointer for field: skipAnalysis in Canary object#2Wenliang-CHEN wants to merge 1 commit intomainfrom
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reedflinch
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Jun 13, 2024
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| func (c *Canary) SkipAnalysis() bool { | ||
| if c.Spec.SkipAnalysis == nil { | ||
| return false | ||
| } | ||
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| if c.Spec.Analysis == nil && c.Spec.CanaryAnalysis == nil { | ||
| return true | ||
| } | ||
| return c.Spec.SkipAnalysis | ||
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| return *c.Spec.SkipAnalysis |
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we don't have to adjust the return type to *bool here?
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This method looks like an internal API ready for consumption: when the caller calls, it is an implementation detail how the nil pointer should be handled. Then the caller just needs to know if it is a "true" or "false", sort of a tell-dont-ask principle
This refactor tries to fulfil a special use case fluxcd#1660: when a custom controller uses the Flagger API to render the Canary object to json/yaml, it makes sure the skipAnalysis field is rendered when the value is "false", so that the field is always communicated to the k8s API server. Comparison is as follows: before, when skipAnalysis is "false" the canary object is rendered as such: ``` apiVersion: flagger.app/v1beta1 kind: Canary ... spec: analysis: ... ``` After, it is as such: ``` apiVersion: flagger.app/v1beta1 kind: Canary ... spec: skipAnalysis: false # this is the field we expected analysis: ... ```
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This refactor tries to fulfill a special use case {ticket number}: when a custom controller uses the Flagger API to create/update a Canary object using k8s client-go:
This makes sure that the skipAnalysis field is always rendered after marshalling to json format.