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cluster_name.go
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cluster_name.go
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// Copyright 2020 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package clusterutil
import (
"regexp"
"github.com/joomcode/errorx"
"github.com/pingcap/tiup/pkg/tui"
"github.com/pingcap/tiup/pkg/utils"
)
var (
// ErrInvalidClusterName is an error for invalid cluster name. You should use `ValidateClusterNameOrError()`
// to generate this error.
ErrInvalidClusterName = errorx.CommonErrors.NewType("invalid_cluster_name", utils.ErrTraitPreCheck)
)
var (
clusterNameRegexp = regexp.MustCompile(`^[a-zA-Z0-9\-_\.]+$`)
)
// ValidateClusterNameOrError validates a cluster name and returns error if the name is invalid.
func ValidateClusterNameOrError(n string) error {
if len(n) == 0 {
return ErrInvalidClusterName.
New("Cluster name must not be empty")
}
if !clusterNameRegexp.MatchString(n) {
return ErrInvalidClusterName.
New("Cluster name '%s' is invalid", n).
WithProperty(tui.SuggestionFromString("The cluster name should only contain alphabets, numbers, hyphen (-), underscore (_), and dot (.)."))
}
return nil
}