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package utils
import (
"compress/zlib"
"io"
)
// NopCloser returns a WriteCloser with a no-op Close method wrapping
// the provided Writer w.
func NopCloser(w io.Writer) io.WriteCloser {
return nopCloser{w}
}
type nopCloser struct {
io.Writer
}
func (nopCloser) Close() error { return nil }
type ReadWrapper func(r io.Reader) (io.ReadCloser, error)
type WriteWrapper func(w io.Writer) io.WriteCloser
// ZlibReader wraps a reader with a new zlib.Reader.
func ZlibReader(r io.Reader) (io.ReadCloser, error) {
return zlib.NewReader(r)
}
// ZlibWrier wraps a writer with a new zlib.Writer.
func ZlibWriter(w io.Writer) io.WriteCloser {
return zlib.NewWriter(w)
}
func NopReadWrapper(r io.Reader) (io.ReadCloser, error) {
return io.NopCloser(r), nil
}
func NopWriteWrapper(w io.Writer) io.WriteCloser {
return NopCloser(w)
}
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