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package rosa
import (
"fmt"
"io"
"net/http"
"os"
"time"
"hakurei.app/fhs"
"hakurei.app/internal/pkg"
)
// busyboxBin is a busybox binary distribution installed under bin/busybox.
type busyboxBin struct {
// Underlying busybox binary.
bin pkg.FileArtifact
}
// Kind returns the hardcoded [pkg.Kind] value.
func (a busyboxBin) Kind() pkg.Kind { return kindBusyboxBin }
// Params is a noop.
func (a busyboxBin) Params(*pkg.IContext) {}
// IsExclusive returns false: Cure performs a trivial filesystem write.
func (busyboxBin) IsExclusive() bool { return false }
// Dependencies returns the underlying busybox [pkg.File].
func (a busyboxBin) Dependencies() []pkg.Artifact {
return []pkg.Artifact{a.bin}
}
func init() {
pkg.Register(kindBusyboxBin, func(r *pkg.IRReader) pkg.Artifact {
a := busyboxBin{r.Next().(pkg.FileArtifact)}
if _, ok := r.Finalise(); ok {
panic(pkg.ErrUnexpectedChecksum)
}
return a
})
}
// String returns the reporting name of the underlying file prefixed with expand.
func (a busyboxBin) String() string {
return "expand-" + a.bin.(fmt.Stringer).String()
}
// Cure installs the underlying busybox [pkg.File] to bin/busybox.
func (a busyboxBin) Cure(t *pkg.TContext) (err error) {
var r io.ReadCloser
if r, err = t.Open(a.bin); err != nil {
return
}
defer func() {
closeErr := r.Close()
if err == nil {
err = closeErr
}
}()
binDir := t.GetWorkDir().Append("bin")
if err = os.MkdirAll(binDir.String(), 0700); err != nil {
return
}
var w *os.File
if w, err = os.OpenFile(
binDir.Append("busybox").String(),
os.O_WRONLY|os.O_CREATE|os.O_EXCL,
0500,
); err != nil {
return
}
defer func() {
closeErr := w.Close()
if err == nil {
err = closeErr
}
}()
_, err = io.Copy(w, r)
return
}
// newBusyboxBin returns a [pkg.Artifact] containing a busybox installation from
// the https://busybox.net/downloads/binaries/ binary release.
func newBusyboxBin() pkg.Artifact {
var version, url, checksum string
switch arch {
case "amd64":
version = "1.35.0"
url = "https://busybox.net/downloads/binaries/" +
version + "-" + linuxArch() + "-linux-musl/busybox"
checksum = "L7OBIsPu9enNHn7FqpBT1kOg_mCLNmetSeNMA3i4Y60Z5jTgnlX3qX3zcQtLx5AB"
case "arm64":
version = "1.31.0"
url = "https://busybox.net/downloads/binaries/" +
version + "-defconfig-multiarch-musl/busybox-armv8l"
checksum = "npJjBO7iwhjW6Kx2aXeSxf8kXhVgTCDChOZTTsI8ZfFfa3tbsklxRiidZQdrVERg"
default:
panic("unsupported target " + arch)
}
return pkg.NewExec(
"busybox-bin-"+version, arch, nil, pkg.ExecTimeoutMax, false,
fhs.AbsRoot, []string{
"PATH=/system/bin",
},
AbsSystem.Append("bin", "busybox"),
[]string{"hush", "-c", "" +
"busybox mkdir -p /work/system/bin/ && " +
"busybox cp /system/bin/busybox /work/system/bin/ && " +
"busybox --install -s /work/system/bin/"},
pkg.Path(AbsSystem, true, busyboxBin{pkg.NewHTTPGet(
&http.Client{Transport: &http.Transport{
// busybox website is really slow to respond
TLSHandshakeTimeout: 2 * time.Minute,
}}, url,
mustDecode(checksum),
)}),
)
}
|
