github.com/GoogleCloudPlatform/compute-image-tools/cli_tools@v0.0.0-20240516224744-de2dabc4ed1b/common/utils/flags/string_array_flag.go (about)

     1  //  Copyright 2019 Google Inc. All Rights Reserved.
     2  //
     3  //  Licensed under the Apache License, Version 2.0 (the "License");
     4  //  you may not use this file except in compliance with the License.
     5  //  You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  //  Unless required by applicable law or agreed to in writing, software
    10  //  distributed under the License is distributed on an "AS IS" BASIS,
    11  //  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  //  See the License for the specific language governing permissions and
    13  //  limitations under the License
    14  
    15  package flags
    16  
    17  import "strings"
    18  
    19  // StringArrayFlag represents a CLI flag with multiple string values
    20  type StringArrayFlag []string
    21  
    22  // Set adds a string value to StringArrayFlag
    23  func (i *StringArrayFlag) Set(value string) error {
    24  	*i = append(*i, value)
    25  	return nil
    26  }
    27  
    28  // String returns string representation of StringArrayFlag
    29  func (i *StringArrayFlag) String() string {
    30  	if i == nil {
    31  		return ""
    32  	}
    33  	return strings.Join(*i, ",")
    34  }