vendor: github.com/golang/snappy v1.0.0

[thaJeztah]

• relates to policy: add artifact attestation and github attestation builtin support  #3657

Ensure arm64 frame sizes are 8 (mod 16)

fixes: "Weird failure when building on Raspbian / Debian 10.11"

full diff: golang/snappy@v0.0.4...v1.0.0

[thaJeztah]

FWIW; this version matches what GitHub uses; https://github.com/cli/cli/blob/7a590331b599a0ac60e55225dc26c79c8b0d51a0/go.mod#L26

I noticed that this module has been archived though; wondering if GitHub (if they define this format to use) is considering alternatives 🤔

[thaJeztah]

Ah! Looks like klauspost/compress has alternatives; worth considering perhaps?

https://pkg.go.dev/github.com/klauspost/compress/snappy

This is a drop-in replacement for github.com/golang/snappy.

And... apparently s2 may be an alternative as well;

https://pkg.go.dev/github.com/klauspost/compress/s2#section-readme

S2 is an extension of Snappy.

S2 is aimed for high throughput, which is why it features concurrent compression for bigger payloads.

Decoding is compatible with Snappy compressed content, but content compressed with S2 cannot be decompressed by Snappy. This means that S2 can seamlessly replace Snappy without converting compressed content.

[thaJeztah]

Oh! And looks like snappy there is a wrapper around s2, so no need to choose really;
https://github.com/klauspost/compress/blob/v1.18.4/snappy/decode.go#L39-L48

// Decode returns the decoded form of src. The returned slice may be a sub-
// slice of dst if dst was large enough to hold the entire decoded block.
// Otherwise, a newly allocated slice will be returned.
//
// The dst and src must not overlap. It is valid to pass a nil dst.
//
// Decode handles the Snappy block format, not the Snappy stream format.
func Decode(dst, src []byte) ([]byte, error) {
	return s2.Decode(dst, src)
}

[thaJeztah]

• opened policy: replace golang/snappy with klauspost/compress/snappy #3686 as alternative