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package virtualbox
import (
"bytes"
"errors"
"fmt"
"os"
"os/exec"
"path/filepath"
"regexp"
"runtime"
"strings"
"github.com/docker/machine/log"
)
var (
reVMNameUUID = regexp.MustCompile(`"(.+)" {([0-9a-f-]+)}`)
reVMInfoLine = regexp.MustCompile(`(?:"(.+)"|(.+))=(?:"(.*)"|(.*))`)
reColonLine = regexp.MustCompile(`(.+):\s+(.*)`)
reEqualLine = regexp.MustCompile(`(.+)=(.*)`)
reEqualQuoteLine = regexp.MustCompile(`"(.+)"="(.*)"`)
reMachineNotFound = regexp.MustCompile(`Could not find a registered machine named '(.+)'`)
)
var (
ErrMachineExist = errors.New("machine already exists")
ErrMachineNotExist = errors.New("machine does not exist")
ErrVBMNotFound = errors.New("VBoxManage not found")
vboxManageCmd = setVBoxManageCmd()
)
// detect the VBoxManage cmd's path if needed
func setVBoxManageCmd() string {
cmd := "VBoxManage"
if path, err := exec.LookPath(cmd); err == nil {
return path
}
if runtime.GOOS == "windows" {
if p := os.Getenv("VBOX_INSTALL_PATH"); p != "" {
if path, err := exec.LookPath(filepath.Join(p, cmd)); err == nil {
return path
}
}
if p := os.Getenv("VBOX_MSI_INSTALL_PATH"); p != "" {
if path, err := exec.LookPath(filepath.Join(p, cmd)); err == nil {
return path
}
}
// look at HKEY_LOCAL_MACHINE\SOFTWARE\Oracle\VirtualBox\InstallDir
p := "C:\\Program Files\\Oracle\\VirtualBox"
if path, err := exec.LookPath(filepath.Join(p, cmd)); err == nil {
return path
}
}
return cmd
}
func vbm(args ...string) error {
_, _, err := vbmOutErr(args...)
return err
}
func vbmOut(args ...string) (string, error) {
stdout, _, err := vbmOutErr(args...)
return stdout, err
}
func vbmOutErr(args ...string) (string, string, error) {
cmd := exec.Command(vboxManageCmd, args...)
log.Debugf("executing: %v %v", vboxManageCmd, strings.Join(args, " "))
var stdout bytes.Buffer
var stderr bytes.Buffer
cmd.Stdout = &stdout
cmd.Stderr = &stderr
err := cmd.Run()
stderrStr := stderr.String()
log.Debugf("STDOUT: %v", stdout.String())
log.Debugf("STDERR: %v", stderrStr)
if err != nil {
if ee, ok := err.(*exec.Error); ok && ee == exec.ErrNotFound {
err = ErrVBMNotFound
}
} else {
// VBoxManage will sometimes not set the return code, but has a fatal error
// such as VBoxManage.exe: error: VT-x is not available. (VERR_VMX_NO_VMX)
if strings.Contains(stderrStr, "error:") {
err = fmt.Errorf("%v %v failed: %v", vboxManageCmd, strings.Join(args, " "), stderrStr)
}
}
return stdout.String(), stderrStr, err
}
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