// ReadSpecFile reads the REX-Ray host address from the spec file.
func ReadSpecFile() (string, error) {
host, err := gotil.ReadFileToString(SpecFilePath())
if err != nil {
return "", err
}
return gotil.Trim(host), nil
}
func (c *client) NextDevice(
ctx types.Context,
opts types.Store) (string, error) {
if c.isController() {
return "", utils.NewUnsupportedForClientTypeError(
c.clientType, "NextDevice")
}
if supported, _ := c.Supported(ctx, opts); !supported {
return "", errExecutorNotSupported
}
ctx = context.RequireTX(ctx.Join(c.ctx))
serviceName, ok := context.ServiceName(ctx)
if !ok {
return "", goof.New("missing service name")
}
si, err := c.getServiceInfo(serviceName)
if err != nil {
return "", err
}
driverName := si.Driver.Name
out, err := c.runExecutor(ctx, driverName, types.LSXCmdNextDevice)
if err != nil {
return "", err
}
ctx.Debug("xli nextdevice success")
return gotil.Trim(string(out)), nil
}
func (d *driver) Supported(
ctx types.Context,
opts types.Store) (bool, error) {
// Use dmidecode if installed
if gotil.FileExistsInPath(dmidecodeCmd) {
out, err := exec.Command(
dmidecodeCmd, "-s", "system-product-name").Output()
if err == nil {
outStr := strings.ToLower(gotil.Trim(string(out)))
if outStr == "virtualbox" {
return true, nil
}
}
out, err = exec.Command(
dmidecodeCmd, "-s", "system-manufacturer").Output()
if err == nil {
outStr := strings.ToLower(gotil.Trim(string(out)))
if outStr == "innotek gmbh" {
return true, nil
}
}
}
// No luck with dmidecode, try dmesg
out, err := exec.Command("dmesg").Output()
if err != nil {
return false, nil
}
rdr := bytes.NewReader(out)
scanner := bufio.NewScanner(rdr)
for scanner.Scan() {
if strings.Contains(scanner.Text(), "BIOS VirtualBox") {
return true, nil
}
}
return false, nil
}
func isDebInstall(exePath string, pkgName *string) bool {
cmd := exec.Command("dpkg-query", "-S", exePath)
output, err := cmd.CombinedOutput()
soutput := string(output)
if err != nil {
log.WithFields(log.Fields{
"exePath": exePath,
"output": soutput,
"error": err,
}).Debug("error checking if deb install")
return false
}
log.WithField("output", soutput).Debug("deb install query result")
*pkgName = strings.Split(gotil.Trim(soutput), ":")[0]
log.WithFields(log.Fields{
"exePath": exePath,
"pkgName": *pkgName,
}).Debug("is deb install success")
return true
}
func isRpmInstall(exePath string, pkgName *string) bool {
cmd := exec.Command("rpm", "-qf", exePath)
output, err := cmd.CombinedOutput()
soutput := string(output)
if err != nil {
log.WithFields(log.Fields{
"exePath": exePath,
"output": soutput,
"error": err,
}).Debug("error checking if rpm install")
return false
}
log.WithField("output", soutput).Debug("rpm install query result")
*pkgName = gotil.Trim(soutput)
log.WithFields(log.Fields{
"exePath": exePath,
"pkgName": *pkgName,
}).Debug("is rpm install success")
return true
}