31 lines
666 B
Go
31 lines
666 B
Go
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package patch
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import (
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"io"
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"io/ioutil"
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"github.com/icedream/go-bsdiff/internal/native"
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)
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/*
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Patch reads a raw patch from patchReader and applies it on top of the old
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content which will be read from oldReader, saving the resulting new content to
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newWriter.
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newSize needs to be exactly the size of the new file that should be generated
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from the patch.
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*/
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func Patch(oldReader io.Reader, newWriter io.Writer, patchReader io.Reader, newSize uint64) (err error) {
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oldBytes, err := ioutil.ReadAll(oldReader)
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if err != nil {
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return
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}
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newBytes := make([]byte, newSize)
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err = native.Patch(oldBytes, newBytes, oldReader)
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newWriter.Write(newBytes)
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return
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}
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