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out-of-tree/distro/debian/kernel.go

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package debian
import (
"errors"
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"fmt"
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"strings"
"code.dumpstack.io/tools/out-of-tree/distro/debian/snapshot"
)
type DebianKernelVersion struct {
// linux-headers-4.17.0-2-amd64_4.17.14-1_amd64.deb
// Package version, e.g. "4.17.14-1"
// See tags in https://salsa.debian.org/kernel-team/linux
Package string
// ABI version, e.g. "4.17.0-2"
ABI string
}
type DebianKernel struct {
Version DebianKernelVersion
Image snapshot.Package
Headers snapshot.Package
}
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var (
ErrNoBinaryPackages = errors.New("no binary packages found")
ErrNoHeadersPackage = errors.New("no headers package found")
ErrNoImagePackage = errors.New("no image package found")
)
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func GetDebianKernel(version string) (dk DebianKernel, err error) {
dk.Version.Package = version
regex := `^linux-(image|headers)-[0-9\.\-]*-(amd64|amd64-unsigned)$`
packages, err := snapshot.Packages("linux", version, "amd64", regex)
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if len(packages) == 0 {
err = ErrNoBinaryPackages
return
} else if len(packages) == 1 {
if strings.Contains(packages[0].Name, "image") {
err = ErrNoHeadersPackage
return
} else if strings.Contains(packages[0].Name, "headers") {
err = ErrNoImagePackage
return
} else {
err = fmt.Errorf("wtf? %v", packages[0].Name)
return
}
} else if len(packages) > 2 {
err = errors.New("more than two binary packages found")
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return
}
var imageFound, headersFound bool
for _, p := range packages {
if strings.Contains(p.Name, "image") {
imageFound = true
dk.Image = p
} else if strings.Contains(p.Name, "headers") {
headersFound = true
dk.Headers = p
}
}
if !imageFound {
err = errors.New("image not found")
return
}
if !headersFound {
err = errors.New("headers not found")
return
}
s := strings.Replace(dk.Headers.Name, "linux-headers-", "", -1)
dk.Version.ABI = strings.Replace(s, "-amd64", "", -1)
return
}