config: add watch option helper
Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
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@ -52,3 +52,13 @@ func SetLoadOption(k, v interface{}) LoadOption {
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o.Context = context.WithValue(o.Context, k, v)
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}
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}
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// SetWatchOption returns a function to setup a context with given value
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func SetWatchOption(k, v interface{}) WatchOption {
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return func(o *WatchOptions) {
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if o.Context == nil {
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o.Context = context.Background()
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}
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o.Context = context.WithValue(o.Context, k, v)
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}
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}
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