986f076276
Add a new generic container registry client via a new `container` package. Use this to create a command line utility as well as a new upload target for container registries. The code uses the github.com/containers/* project and packages to interact with container registires that is also used by skopeo, podman et al. One if the dependencies is `proglottis/gpgme` that is using cgo to bind libgpgme, so we have to add the corresponding devel package to the BuildRequires as well as installing it on CI. Checks will follow later via an integration test.
54 lines
1.4 KiB
Go
54 lines
1.4 KiB
Go
// Copyright 2014-2021 Ulrich Kunitz. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package xz
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import (
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"hash"
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"hash/crc32"
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"hash/crc64"
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)
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// crc32Hash implements the hash.Hash32 interface with Sum returning the
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// crc32 value in little-endian encoding.
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type crc32Hash struct {
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hash.Hash32
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}
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// Sum returns the crc32 value as little endian.
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func (h crc32Hash) Sum(b []byte) []byte {
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p := make([]byte, 4)
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putUint32LE(p, h.Hash32.Sum32())
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b = append(b, p...)
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return b
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}
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// newCRC32 returns a CRC-32 hash that returns the 64-bit value in
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// little-endian encoding using the IEEE polynomial.
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func newCRC32() hash.Hash {
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return crc32Hash{Hash32: crc32.NewIEEE()}
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}
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// crc64Hash implements the Hash64 interface with Sum returning the
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// CRC-64 value in little-endian encoding.
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type crc64Hash struct {
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hash.Hash64
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}
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// Sum returns the CRC-64 value in little-endian encoding.
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func (h crc64Hash) Sum(b []byte) []byte {
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p := make([]byte, 8)
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putUint64LE(p, h.Hash64.Sum64())
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b = append(b, p...)
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return b
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}
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// crc64Table is used to create a CRC-64 hash.
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var crc64Table = crc64.MakeTable(crc64.ECMA)
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// newCRC64 returns a CRC-64 hash that returns the 64-bit value in
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// little-endian encoding using the ECMA polynomial.
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func newCRC64() hash.Hash {
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return crc64Hash{Hash64: crc64.New(crc64Table)}
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}
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