42 lines
783 B
Go
42 lines
783 B
Go
package cluster
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import "sort"
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// SortRegions sorts regions. first by length those 3-character
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// or shorter, and then by length. It's mostly aimed at
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// supporting ISO-3166 order
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func SortRegions(regions []string) []string {
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sort.Slice(regions, func(i, j int) bool {
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r1, r2 := regions[i], regions[j]
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return regionLess(r1, r2)
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})
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return regions
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}
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func regionLess(r1, r2 string) bool {
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switch {
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case len(r1) < 4:
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switch {
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case len(r1) < len(r2):
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return true
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case len(r1) > len(r2):
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return false
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default:
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return r1 < r2
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}
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case len(r2) < 4:
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return false
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default:
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return r1 < r2
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}
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}
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func (m *Cluster) sortRegions() {
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sort.Slice(m.Regions, func(i, j int) bool {
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r1 := m.Regions[i].Name
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r2 := m.Regions[j].Name
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return regionLess(r1, r2)
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})
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}
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