85 lines
2.1 KiB
Go
85 lines
2.1 KiB
Go
/*
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Copyright 2018 Google LLC
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package config
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import (
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"fmt"
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"strings"
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"github.com/sirupsen/logrus"
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)
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// This type is used to supported passing in multiple flags
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type multiArg []string
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// Now, for our new type, implement the two methods of
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// the flag.Value interface...
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// The first method is String() string
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func (b *multiArg) String() string {
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return strings.Join(*b, ",")
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}
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// The second method is Set(value string) error
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func (b *multiArg) Set(value string) error {
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logrus.Debugf("Appending to multi args %s", value)
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*b = append(*b, value)
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return nil
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}
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// The third is Type() string
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func (b *multiArg) Type() string {
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return "multi-arg type"
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}
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func (b *multiArg) Contains(v string) bool {
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for _, s := range *b {
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if s == v {
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return true
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}
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}
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return false
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}
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// This type is used to supported passing in multiple key=value flags
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type keyValueArg map[string]string
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// Now, for our new type, implement the two methods of
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// the flag.Value interface...
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// The first method is String() string
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func (a *keyValueArg) String() string {
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var result []string
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for key := range *a {
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result = append(result, fmt.Sprintf("%s=%s", key, (*a)[key]))
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}
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return strings.Join(result, ",")
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}
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// The second method is Set(value string) error
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func (a *keyValueArg) Set(value string) error {
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valueSplit := strings.SplitN(value, "=", 2)
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if len(valueSplit) < 2 {
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return fmt.Errorf("invalid argument value. expect key=value, got %s", value)
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}
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(*a)[valueSplit[0]] = valueSplit[1]
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return nil
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}
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// The third is Type() string
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func (a *keyValueArg) Type() string {
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return "key-value-arg type"
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}
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