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package hashio // import "pault.ag/go/debian/hashio"
import (
"fmt"
"io"
"compress/gzip"
)
type Compressor func(io.Writer) (io.WriteCloser, error)
func gzipCompressor(in io.Writer) (io.WriteCloser, error) {
return gzip.NewWriter(in), nil
}
var knownCompressors = map[string]Compressor{
"gz": gzipCompressor,
}
func GetCompressor(name string) (Compressor, error) {
if compressor, ok := knownCompressors[name]; ok {
return compressor, nil
}
return nil, fmt.Errorf("No such compressor: '%s'", name)
}
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