podman

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package compression
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import "strings"
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type ImageCompression int64
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const (
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	Xz ImageCompression = iota
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	Zip
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	Gz
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	Bz2
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	Zstd
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)
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func KindFromFile(path string) ImageCompression {
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	switch {
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	case strings.HasSuffix(path, Bz2.String()):
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		return Bz2
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	case strings.HasSuffix(path, Gz.String()):
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		return Gz
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	case strings.HasSuffix(path, Zip.String()):
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		return Zip
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	case strings.HasSuffix(path, Xz.String()):
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		return Xz
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	}
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	return Zstd
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}
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func (c ImageCompression) String() string {
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	switch c {
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	case Gz:
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		return "gz"
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	case Zip:
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		return "zip"
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	case Bz2:
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		return "bz2"
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	case Xz:
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		return "xz"
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	}
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	return "zst"
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}
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