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sorter.go

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package docker

import "sort"

type imageSorter struct {

images []APIImages

by func(i1, i2 *APIImages) bool // Closure used in the Less method.

}

// Len is part of sort.Interface.

func (s *imageSorter) Len() int {

return len(s.images)

}

// Swap is part of sort.Interface.

func (s *imageSorter) Swap(i, j int) {

s.images[i], s.images[j] = s.images[j], s.images[i]

}

// Less is part of sort.Interface. It is implemented by calling the "by" closure in the sorter.

func (s *imageSorter) Less(i, j int) bool {

return s.by(&s.images[i], &s.images[j])

}

// Sort []ApiImages by most recent creation date and tag name.

func sortImagesByCreationAndTag(images []APIImages) {

creationAndTag := func(i1, i2 *APIImages) bool {

return i1.Created > i2.Created || (i1.Created == i2.Created && i2.Tag > i1.Tag)

}

sorter := &imageSorter{

images: images,

by: creationAndTag}

sort.Sort(sorter)

}