docs/drivers/virtualbox/vbm.go

76 lines
1.9 KiB
Go

package virtualbox
import (
"bytes"
"errors"
"fmt"
"os"
"os/exec"
"regexp"
"strings"
log "github.com/Sirupsen/logrus"
)
var (
reVMNameUUID = regexp.MustCompile(`"(.+)" {([0-9a-f-]+)}`)
reVMInfoLine = regexp.MustCompile(`(?:"(.+)"|(.+))=(?:"(.*)"|(.*))`)
reColonLine = regexp.MustCompile(`(.+):\s+(.*)`)
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 = "VBoxManage"
)
func vbm(args ...string) error {
cmd := exec.Command(vboxManageCmd, args...)
if os.Getenv("DEBUG") != "" {
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
}
log.Debugf("executing: %v %v", vboxManageCmd, strings.Join(args, " "))
if err := cmd.Run(); err != nil {
if ee, ok := err.(*exec.Error); ok && ee == exec.ErrNotFound {
return ErrVBMNotFound
}
return fmt.Errorf("%v %v failed: %v", vboxManageCmd, strings.Join(args, " "), err)
}
return nil
}
func vbmOut(args ...string) (string, error) {
cmd := exec.Command(vboxManageCmd, args...)
if os.Getenv("DEBUG") != "" {
cmd.Stderr = os.Stderr
}
log.Debugf("executing: %v %v", vboxManageCmd, strings.Join(args, " "))
b, err := cmd.Output()
if err != nil {
if ee, ok := err.(*exec.Error); ok && ee == exec.ErrNotFound {
err = ErrVBMNotFound
}
}
return string(b), 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()
if err != nil {
if ee, ok := err.(*exec.Error); ok && ee == exec.ErrNotFound {
err = ErrVBMNotFound
}
}
return stdout.String(), stderr.String(), err
}