xboard
23 lines
602 B
Go
23 lines
602 B
Go
package dnsproviders
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import (
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"fmt"
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"strings"
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)
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// firstOf returns the value of the first non-empty env key from candidates.
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// Lookup is case-sensitive (env keys are conventionally upper-case).
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func firstOf(env map[string]string, keys ...string) string {
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for _, k := range keys {
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if v := strings.TrimSpace(env[k]); v != "" {
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return v
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}
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}
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return ""
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}
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// missingEnvErr formats a "missing required env" error consistently.
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func missingEnvErr(provider string, keys ...string) error {
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return fmt.Errorf("dns provider %q requires one of %s in dns_env", provider, strings.Join(keys, ", "))
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}
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