agent: guard against empty keyring files
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@ -50,6 +50,11 @@ func loadKeyringFile(c *serf.Config) error {
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keysDecoded[i] = keyBytes
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keysDecoded[i] = keyBytes
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}
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}
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// Guard against empty keyring
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if len(keysDecoded) == 0 {
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return fmt.Errorf("no keys present in keyring file: %s", c.KeyringFile)
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}
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// Create the keyring
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// Create the keyring
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keyring, err := memberlist.NewKeyring(keysDecoded, keysDecoded[0])
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keyring, err := memberlist.NewKeyring(keysDecoded, keysDecoded[0])
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if err != nil {
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if err != nil {
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