mirror of https://github.com/status-im/consul.git
53 lines
950 B
Go
53 lines
950 B
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package flags
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import (
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"flag"
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"fmt"
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"strings"
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)
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// Ensure implements
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var _ flag.Value = (*FlagMapValue)(nil)
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// FlagMapValue is a flag implementation used to provide key=value semantics
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// multiple times.
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type FlagMapValue map[string]string
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func (h *FlagMapValue) String() string {
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return fmt.Sprintf("%v", *h)
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}
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func (h *FlagMapValue) Set(value string) error {
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idx := strings.Index(value, "=")
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if idx == -1 {
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return fmt.Errorf("Missing \"=\" value in argument: %s", value)
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}
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key, value := value[0:idx], value[idx+1:]
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if *h == nil {
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*h = make(map[string]string)
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}
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headers := *h
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headers[key] = value
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*h = headers
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return nil
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}
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// Merge will overlay this value if it has been set.
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func (h *FlagMapValue) Merge(onto map[string]string) {
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if h == nil || onto == nil {
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return
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}
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for k, v := range *h {
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if _, ok := onto[k]; !ok {
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onto[k] = v
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}
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}
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}
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