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package getter
import (
"compress/gzip"
"fmt"
"io"
"os"
"path/filepath"
)
// GzipDecompressor is an implementation of Decompressor that can
// decompress bz2 files.
type GzipDecompressor struct{}
func (d *GzipDecompressor) Decompress(dst, src string, dir bool) error {
// Directory isn't supported at all
if dir {
return fmt.Errorf("gzip-compressed files can only unarchive to a single file")
}
// If we're going into a directory we should make that first
if err := os.MkdirAll(filepath.Dir(dst), 0755); err != nil {
return err
}
// File first
f, err := os.Open(src)
if err != nil {
return err
}
defer f.Close()
// gzip compression is second
gzipR, err := gzip.NewReader(f)
if err != nil {
return err
}
defer gzipR.Close()
// Copy it out
dstF, err := os.Create(dst)
if err != nil {
return err
}
defer dstF.Close()
_, err = io.Copy(dstF, gzipR)
return err
}
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