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33 lines
721 B
Go
33 lines
721 B
Go
package store
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import (
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"os"
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"strings"
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"github.com/docker/docker/pkg/namesgenerator"
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"github.com/pkg/errors"
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)
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func ValidateName(s string) (string, error) {
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if !namePattern.MatchString(s) {
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return "", errors.Errorf("invalid name %s, name needs to start with a letter and may not contain symbols, except ._-", s)
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}
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return strings.ToLower(s), nil
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}
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func GenerateName(txn *Txn) (string, error) {
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var name string
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for i := 0; i < 6; i++ {
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name = namesgenerator.GetRandomName(i)
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if _, err := txn.NodeGroupByName(name); err != nil {
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if !os.IsNotExist(errors.Cause(err)) {
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return "", err
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}
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} else {
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continue
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}
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return name, nil
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}
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return "", errors.Errorf("failed to generate random name")
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}
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