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driver_4_2.go
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driver_4_2.go
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package common
import (
"bytes"
"fmt"
"log"
"os/exec"
"regexp"
"strings"
"time"
)
type VBox42Driver struct {
// This is the path to the "VBoxManage" application.
VBoxManagePath string
}
func (d *VBox42Driver) CreateSATAController(vmName string, name string) error {
version, err := d.Version()
if err != nil {
return err
}
portCountArg := "--sataportcount"
if strings.HasPrefix(version, "4.3") {
portCountArg = "--portcount"
}
command := []string{
"storagectl", vmName,
"--name", name,
"--add", "sata",
portCountArg, "1",
}
return d.VBoxManage(command...)
}
func (d *VBox42Driver) Delete(name string) error {
return d.VBoxManage("unregistervm", name, "--delete")
}
func (d *VBox42Driver) Iso() (string, error) {
var stdout bytes.Buffer
cmd := exec.Command(d.VBoxManagePath, "list", "systemproperties")
cmd.Stdout = &stdout
if err := cmd.Run(); err != nil {
return "", err
}
DefaultGuestAdditionsRe := regexp.MustCompile("Default Guest Additions ISO:(.+)")
for _, line := range strings.Split(stdout.String(), "\n") {
// Need to trim off CR character when running in windows
// Trimming whitespaces at this point helps to filter out empty value
line = strings.TrimRight(line, " \r")
matches := DefaultGuestAdditionsRe.FindStringSubmatch(line)
if matches == nil {
continue
}
isoname := strings.Trim(matches[1], " \r\n")
log.Printf("Found Default Guest Additions ISO: %s", isoname)
return isoname, nil
}
return "", fmt.Errorf("Cannot find \"Default Guest Additions ISO\" in vboxmanage output (or it is empty)")
}
func (d *VBox42Driver) Import(name string, path string, flags []string) error {
args := []string{
"import", path,
"--vsys", "0",
"--vmname", name,
}
args = append(args, flags...)
return d.VBoxManage(args...)
}
func (d *VBox42Driver) IsRunning(name string) (bool, error) {
var stdout bytes.Buffer
cmd := exec.Command(d.VBoxManagePath, "showvminfo", name, "--machinereadable")
cmd.Stdout = &stdout
if err := cmd.Run(); err != nil {
return false, err
}
for _, line := range strings.Split(stdout.String(), "\n") {
// Need to trim off CR character when running in windows
line = strings.TrimRight(line, "\r")
if line == `VMState="running"` {
return true, nil
}
// We consider "stopping" to still be running. We wait for it to
// be completely stopped or some other state.
if line == `VMState="stopping"` {
return true, nil
}
// We consider "paused" to still be running. We wait for it to
// be completely stopped or some other state.
if line == `VMState="paused"` {
return true, nil
}
}
return false, nil
}
func (d *VBox42Driver) Stop(name string) error {
if err := d.VBoxManage("controlvm", name, "poweroff"); err != nil {
return err
}
// We sleep here for a little bit to let the session "unlock"
time.Sleep(2 * time.Second)
return nil
}
func (d *VBox42Driver) SuppressMessages() error {
extraData := map[string]string{
"GUI/RegistrationData": "triesLeft=0",
"GUI/SuppressMessages": "confirmInputCapture,remindAboutAutoCapture,remindAboutMouseIntegrationOff,remindAboutMouseIntegrationOn,remindAboutWrongColorDepth",
"GUI/UpdateDate": fmt.Sprintf("1 d, %d-01-01, stable", time.Now().Year()+1),
"GUI/UpdateCheckCount": "60",
}
for k, v := range extraData {
if err := d.VBoxManage("setextradata", "global", k, v); err != nil {
return err
}
}
return nil
}
func (d *VBox42Driver) VBoxManage(args ...string) error {
var stdout, stderr bytes.Buffer
log.Printf("Executing VBoxManage: %#v", args)
cmd := exec.Command(d.VBoxManagePath, args...)
cmd.Stdout = &stdout
cmd.Stderr = &stderr
err := cmd.Run()
stdoutString := strings.TrimSpace(stdout.String())
stderrString := strings.TrimSpace(stderr.String())
if _, ok := err.(*exec.ExitError); ok {
err = fmt.Errorf("VBoxManage error: %s", stderrString)
}
if err == nil {
// Sometimes VBoxManage gives us an error with a zero exit code,
// so we also regexp match an error string.
m, _ := regexp.MatchString("VBoxManage([.a-z]+?): error:", stderrString)
if m {
err = fmt.Errorf("VBoxManage error: %s", stderrString)
}
}
log.Printf("stdout: %s", stdoutString)
log.Printf("stderr: %s", stderrString)
return err
}
func (d *VBox42Driver) Verify() error {
return nil
}
func (d *VBox42Driver) Version() (string, error) {
var stdout bytes.Buffer
cmd := exec.Command(d.VBoxManagePath, "--version")
cmd.Stdout = &stdout
if err := cmd.Run(); err != nil {
return "", err
}
versionOutput := strings.TrimSpace(stdout.String())
log.Printf("VBoxManage --version output: %s", versionOutput)
// If the "--version" output contains vboxdrv, then this is indicative
// of problems with the VirtualBox setup and we shouldn't really continue,
// whether or not we can read the version.
if strings.Contains(versionOutput, "vboxdrv") {
return "", fmt.Errorf("VirtualBox is not properly setup: %s", versionOutput)
}
versionRe := regexp.MustCompile("^([.0-9]+)(?:_(?:RC|OSEr)[0-9]+)?")
matches := versionRe.FindAllStringSubmatch(versionOutput, 1)
if matches == nil || len(matches[0]) != 2 {
return "", fmt.Errorf("No version found: %s", versionOutput)
}
log.Printf("VirtualBox version: %s", matches[0][1])
return matches[0][1], nil
}