debian-forge-composer/vendor/github.com/ulikunitz/xz/lzma/directcodec.go
Christian Kellner 986f076276 container: add support for uploading to registries
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.
2022-06-29 10:02:46 +02:00

38 lines
1.1 KiB
Go

// Copyright 2014-2021 Ulrich Kunitz. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package lzma
// directCodec allows the encoding and decoding of values with a fixed number
// of bits. The number of bits must be in the range [1,32].
type directCodec byte
// Bits returns the number of bits supported by this codec.
func (dc directCodec) Bits() int {
return int(dc)
}
// Encode uses the range encoder to encode a value with the fixed number of
// bits. The most-significant bit is encoded first.
func (dc directCodec) Encode(e *rangeEncoder, v uint32) error {
for i := int(dc) - 1; i >= 0; i-- {
if err := e.DirectEncodeBit(v >> uint(i)); err != nil {
return err
}
}
return nil
}
// Decode uses the range decoder to decode a value with the given number of
// given bits. The most-significant bit is decoded first.
func (dc directCodec) Decode(d *rangeDecoder) (v uint32, err error) {
for i := int(dc) - 1; i >= 0; i-- {
x, err := d.DirectDecodeBit()
if err != nil {
return 0, err
}
v = (v << 1) | x
}
return v, nil
}