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archive_targz.go
35 lines (28 loc) · 715 Bytes
/
archive_targz.go
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package updater
import (
"compress/gzip"
"fmt"
"io"
"strings"
)
var tarGz tarGzExtractor
type tarGzExtractor struct {
tarExtractor
}
func init() {
RegisterFormat("TarGz", tarGz)
}
func (tarGzExtractor) Match(filename string) bool {
filename = strings.ToLower(filename)
return strings.HasSuffix(filename, ".tar.gz") ||
strings.HasSuffix(filename, ".tgz")
}
// Read a .tar.gz from a Reader and locates the needed binary
func (t tarGzExtractor) FetchBinary(input io.Reader, isBinary BinaryFilter) (io.Reader, error) {
gzr, err := gzip.NewReader(input)
if err != nil {
return nil, fmt.Errorf("error decompressing: %w", err)
}
defer gzr.Close()
return t.tarExtractor.FetchBinary(gzr, isBinary)
}