6017ac7132
Normalise server metadata so trailing-slash variants deduplicate to a single entry. Adds a regression test covering both absolute and relative server URLs. Co-Authored-By: Virgil <virgil@lethean.io>
53 lines
1 KiB
Go
53 lines
1 KiB
Go
// SPDX-License-Identifier: EUPL-1.2
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package api
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import "strings"
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// normaliseServers trims whitespace, removes empty entries, and preserves
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// the first occurrence of each server URL.
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func normaliseServers(servers []string) []string {
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if len(servers) == 0 {
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return nil
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}
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cleaned := make([]string, 0, len(servers))
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seen := make(map[string]struct{}, len(servers))
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for _, server := range servers {
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server = normaliseServer(server)
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if server == "" {
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continue
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}
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if _, ok := seen[server]; ok {
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continue
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}
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seen[server] = struct{}{}
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cleaned = append(cleaned, server)
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}
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if len(cleaned) == 0 {
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return nil
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}
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return cleaned
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}
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// normaliseServer trims surrounding whitespace and removes a trailing slash
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// from non-root server URLs so equivalent metadata collapses to one entry.
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func normaliseServer(server string) string {
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server = strings.TrimSpace(server)
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if server == "" {
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return ""
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}
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if server == "/" {
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return server
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}
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server = strings.TrimRight(server, "/")
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if server == "" {
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return "/"
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}
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return server
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}
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