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package cloudinit
import (
"fmt"
"regexp"
"slices"
"strings"
)
const GuestToolsDir = AssociationRefDir + "/guest-tools"
const GuestToolSocialwebComputer = "socialweb-computer"
var guestToolNameRE = regexp.MustCompile(`^[a-z0-9][a-z0-9-]*$`)
func GuestToolPath(name string) string {
return GuestToolsDir + "/" + name
}
func GuestToolOf(path string) (string, bool) {
name, ok := strings.CutPrefix(path, GuestToolsDir+"/")
if !ok || !guestToolNameRE.MatchString(name) {
return "", false
}
return name, true
}
func GuestToolsModule(names []string) UserDataModule {
return func(Context) (UserDataPatch, error) {
var files []WriteFileEntry
for _, name := range slices.Sorted(slices.Values(names)) {
if !guestToolNameRE.MatchString(name) {
return UserDataPatch{}, fmt.Errorf("cloudinit guest tools: %q is not a tool name", name)
}
files = append(files, WriteFileEntry{Path: GuestToolPath(name), Owner: "root:root", Permissions: "0644", Content: name + "\n"})
}
return UserDataPatch{WriteFiles: slices.CompactFunc(files, func(a, b WriteFileEntry) bool { return a.Path == b.Path })}, nil
}
}
