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Merge pull request #65391 from smarterclayton/describe

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Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

When splitting `snake_case` words, omit the underscore

While we require camelCase by convention for official APIs, CRDs may use
`snake_case`, and the generic describer prints this as `Snake _ Case`.  We should print `Snake Case`

Prow is impacted by this for the ProwJob CRD:

```
  Decoration _ Config:
    Gcs _ Configuration:
      Bucket:                    origin-ci-test
      Default _ Org:             openshift
      Default _ Repo:            origin
      Path _ Strategy:           single
    Gcs _ Credentials _ Secret:  gcs-publisher-credentials
```

@kubernetes/sig-cli-pr-reviews

```release-note
Using `kubectl describe` on CRDs that use underscores will be prettier.
```
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Kubernetes Submit Queue 2018-06-24 02:29:30 -07:00 committed by GitHub
commit ec37c0f643
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1 changed files with 8 additions and 5 deletions
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13
pkg/printers/internalversion/describe.go
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@ -275,19 +275,22 @@ func printUnstructuredContent(w PrefixWriter, level int, content map[string]inte
func smartLabelFor(field string) string {
commonAcronyms := []string{"API", "URL", "UID", "OSB", "GUID"}
splitted := camelcase.Split(field)
for i := 0; i < len(splitted); i++ {
part := splitted[i]
parts := camelcase.Split(field)
result := make([]string, 0, len(parts))
for _, part := range parts {
if part == "_" {
continue
}
if slice.ContainsString(commonAcronyms, strings.ToUpper(part), nil) {
part = strings.ToUpper(part)
} else {
part = strings.Title(part)
}
splitted[i] = part
result = append(result, part)
}
return strings.Join(splitted, " ")
return strings.Join(result, " ")
}
// DefaultObjectDescriber can describe the default Kubernetes objects.