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// Copyright 2018 The Bazel Authors. All rights reserved.
//
// 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package flags provides extensions to the built-in flag module.
package flags
import (
"flag"
"strings"
)
// StringList provides a flag type that parses a,comma,separated,string into a []string.
type StringList []string
func (i *StringList) String() string {
return strings.Join([]string(*i), ",")
}
// Set sets the flag value.
func (i *StringList) Set(v string) error {
*i = strings.Split(v, ",")
return nil
}
// NewStringList creates a new StringList flag
// var someFlag = flags.NewStringList("some_name", "some desc")
func NewStringList(name, help string) *StringList {
var r StringList
flag.Var(&r, name, help)
return &r
}
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