23 lines
917 B
Go
23 lines
917 B
Go
package internal
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import "fmt"
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// MaxSizeSubjectsListForLog returns the keys in the map as a slice of maximum length
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// maxToDisplay. It is useful for logging domains being managed, for example, since a
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// map is typically needed for quick lookup, but a slice is needed for logging, and this
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// can be quite a doozy since there may be a huge amount (hundreds of thousands).
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func MaxSizeSubjectsListForLog(subjects map[string]struct{}, maxToDisplay int) []string {
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numberOfNamesToDisplay := min(len(subjects), maxToDisplay)
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domainsToDisplay := make([]string, 0, numberOfNamesToDisplay)
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for domain := range subjects {
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domainsToDisplay = append(domainsToDisplay, domain)
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if len(domainsToDisplay) >= numberOfNamesToDisplay {
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break
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}
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}
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if len(subjects) > maxToDisplay {
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domainsToDisplay = append(domainsToDisplay, fmt.Sprintf("(and %d more...)", len(subjects)-maxToDisplay))
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}
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return domainsToDisplay
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}
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