Files
squashfs/internal/decompress/xz.go
T
Mikel Olasagasti Uranga 9fb4f8839d [PATCH] Change xz module due to licensing concerns
The original module `github.com/xi2/xz/` is in the Public Domain but
does not explicitly specify a license. The module has not been updated
since 2017.

The fork at `github.com/therootcompany/xz` simply adds a Creative
Commons CC0 1.0 Universal (CC0-1.0) license declaration for Public
Domain use. However, this license has been disallowed by Fedora since
2022, as announced in the [Fedora Legal
thread](https://lists.fedoraproject.org/archives/list/legal@lists.fedoraproject.org/thread/RRYM3CLYJYW64VSQIXY6IF3TCDZGS6LM/#EO4JUQRG4GDLRHJHJBUZDR2RHMXNU5HT), and the restriction also applies to RHEL and related distributions.

The module at `github.com/mikelolasagasti/xz` is a fork of `xi2/xz`, but
declares the BSD Zero Clause License (0BSD) instead. This aligns with
the licensing of the upstream source from which `xi2/xz` originally
derives, which has moved from [Public Domain to 0BSD for recent
updates](https://tukaani.org/xz/embedded.html#_licensing).

Signed-off-by: Mikel Olasagasti Uranga <mikel@olasagasti.info>
2025-06-11 22:42:59 +02:00

35 lines
481 B
Go

package decompress
import (
"bytes"
"io"
"sync"
"github.com/mikelolasagasti/xz"
)
type Xz struct {
pool sync.Pool
}
func NewXz() *Xz {
return &Xz{
pool: sync.Pool{
New: func() any {
rdr, _ := xz.NewReader(nil, 0)
return rdr
},
},
}
}
func (x *Xz) Decompress(data []byte) ([]byte, error) {
rdr := x.pool.Get().(*xz.Reader)
defer x.pool.Put(rdr)
err := rdr.Reset(bytes.NewReader(data))
if err != nil {
return nil, err
}
return io.ReadAll(rdr)
}