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package selfupdate
import (
"io"
"github.com/kr/binarydist"
)
// Patcher defines an interface for applying binary patches to an old item to get an updated item.
type Patcher interface {
Patch(old io.Reader, new io.Writer, patch io.Reader) error
}
type patchFn func(io.Reader, io.Writer, io.Reader) error
func (fn patchFn) Patch(old io.Reader, new io.Writer, patch io.Reader) error {
return fn(old, new, patch)
}
// NewBSDifferPatcher returns a new Patcher that applies binary patches using
// the bsdiff algorithm. See http://www.daemonology.net/bsdiff/
func NewBSDiffPatcher() Patcher {
return patchFn(binarydist.Patch)
}
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