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Refactor Builder.visitorResult by extra methonds.

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This commit is contained in:
Klaus Ma
2016-09-17 17:17:11 +08:00
parent 173fd499cf
commit d55006d38f
1 changed files with 167 additions and 151 deletions
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40
pkg/kubectl/resource/builder.go
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@@ -533,6 +533,31 @@ func (b *Builder) visitorResult() *Result {
// visit selectors // visit selectors
if b.selector != nil { if b.selector != nil {
return b.visitBySelector()
}
// visit items specified by resource and name
if len(b.resourceTuples) != 0 {
return b.visitByResource()
}
// visit items specified by name
if len(b.names) != 0 {
return b.visitByName()
}
// visit items specified by paths
if len(b.paths) != 0 {
return b.visitByPaths()
}
if len(b.resources) != 0 {
return &Result{err: fmt.Errorf("resource(s) were provided, but no name, label selector, or --all flag specified")}
}
return &Result{err: missingResourceError}
}
func (b *Builder) visitBySelector() *Result {
if len(b.names) != 0 { if len(b.names) != 0 {
return &Result{err: fmt.Errorf("name cannot be provided when a selector is specified")} return &Result{err: fmt.Errorf("name cannot be provided when a selector is specified")}
} }
@@ -573,8 +598,7 @@ func (b *Builder) visitorResult() *Result {
return &Result{visitor: VisitorList(visitors), sources: visitors} return &Result{visitor: VisitorList(visitors), sources: visitors}
} }
// visit items specified by resource and name func (b *Builder) visitByResource() *Result {
if len(b.resourceTuples) != 0 {
// if b.singular is false, this could be by default, so double-check length // if b.singular is false, this could be by default, so double-check length
// of resourceTuples to determine if in fact it is singular or not // of resourceTuples to determine if in fact it is singular or not
isSingular := b.singular isSingular := b.singular
@@ -641,8 +665,7 @@ func (b *Builder) visitorResult() *Result {
return &Result{singular: isSingular, visitor: visitors, sources: items} return &Result{singular: isSingular, visitor: visitors, sources: items}
} }
// visit items specified by name func (b *Builder) visitByName() *Result {
if len(b.names) != 0 {
isSingular := len(b.names) == 1 isSingular := len(b.names) == 1
if len(b.paths) != 0 { if len(b.paths) != 0 {
@@ -683,8 +706,7 @@ func (b *Builder) visitorResult() *Result {
return &Result{singular: isSingular, visitor: VisitorList(visitors), sources: visitors} return &Result{singular: isSingular, visitor: VisitorList(visitors), sources: visitors}
} }
// visit items specified by paths func (b *Builder) visitByPaths() *Result {
if len(b.paths) != 0 {
singular := !b.dir && !b.stream && len(b.paths) == 1 singular := !b.dir && !b.stream && len(b.paths) == 1
if len(b.resources) != 0 { if len(b.resources) != 0 {
return &Result{singular: singular, err: fmt.Errorf("when paths, URLs, or stdin is provided as input, you may not specify resource arguments as well")} return &Result{singular: singular, err: fmt.Errorf("when paths, URLs, or stdin is provided as input, you may not specify resource arguments as well")}
@@ -712,12 +734,6 @@ func (b *Builder) visitorResult() *Result {
return &Result{singular: singular, visitor: visitors, sources: b.paths} return &Result{singular: singular, visitor: visitors, sources: b.paths}
} }
if len(b.resources) != 0 {
return &Result{err: fmt.Errorf("resource(s) were provided, but no name, label selector, or --all flag specified")}
}
return &Result{err: missingResourceError}
}
// Do returns a Result object with a Visitor for the resources identified by the Builder. // Do returns a Result object with a Visitor for the resources identified by the Builder.
// The visitor will respect the error behavior specified by ContinueOnError. Note that stream // The visitor will respect the error behavior specified by ContinueOnError. Note that stream
// inputs are consumed by the first execution - use Infos() or Object() on the Result to capture a list // inputs are consumed by the first execution - use Infos() or Object() on the Result to capture a list