21 lines
463 B
Go
21 lines
463 B
Go
|
package flag
|
||
|
|
||
|
import (
|
||
|
"context"
|
||
|
|
||
|
"github.com/micro/go-micro/config/source"
|
||
|
)
|
||
|
|
||
|
type includeUnsetKey struct{}
|
||
|
|
||
|
// IncludeUnset toggles the loading of unset flags and their respective default values.
|
||
|
// Default behavior is to ignore any unset flags.
|
||
|
func IncludeUnset(b bool) source.Option {
|
||
|
return func(o *source.Options) {
|
||
|
if o.Context == nil {
|
||
|
o.Context = context.Background()
|
||
|
}
|
||
|
o.Context = context.WithValue(o.Context, includeUnsetKey{}, true)
|
||
|
}
|
||
|
}
|