415 lines
10 KiB
Go
415 lines
10 KiB
Go
package virtualbox
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import (
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"errors"
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"fmt"
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"github.com/mitchellh/mapstructure"
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"github.com/mitchellh/multistep"
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"github.com/mitchellh/packer/builder/common"
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"github.com/mitchellh/packer/packer"
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"log"
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"net/url"
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"os"
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"os/exec"
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"path/filepath"
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"sort"
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"strings"
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"time"
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)
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const BuilderId = "mitchellh.virtualbox"
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type Builder struct {
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config config
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driver Driver
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runner multistep.Runner
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}
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type config struct {
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BootCommand []string `mapstructure:"boot_command"`
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DiskSize uint `mapstructure:"disk_size"`
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FloppyFiles []string `mapstructure:"floppy_files"`
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GuestAdditionsPath string `mapstructure:"guest_additions_path"`
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GuestAdditionsURL string `mapstructure:"guest_additions_url"`
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GuestAdditionsSHA256 string `mapstructure:"guest_additions_sha256"`
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GuestOSType string `mapstructure:"guest_os_type"`
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Headless bool `mapstructure:"headless"`
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HTTPDir string `mapstructure:"http_directory"`
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HTTPPortMin uint `mapstructure:"http_port_min"`
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HTTPPortMax uint `mapstructure:"http_port_max"`
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ISOChecksum string `mapstructure:"iso_checksum"`
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ISOChecksumType string `mapstructure:"iso_checksum_type"`
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ISOUrl string `mapstructure:"iso_url"`
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OutputDir string `mapstructure:"output_directory"`
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ShutdownCommand string `mapstructure:"shutdown_command"`
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SSHHostPortMin uint `mapstructure:"ssh_host_port_min"`
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SSHHostPortMax uint `mapstructure:"ssh_host_port_max"`
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SSHPassword string `mapstructure:"ssh_password"`
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SSHPort uint `mapstructure:"ssh_port"`
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SSHUser string `mapstructure:"ssh_username"`
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VBoxVersionFile string `mapstructure:"virtualbox_version_file"`
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VBoxManage [][]string `mapstructure:"vboxmanage"`
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VMName string `mapstructure:"vm_name"`
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PackerBuildName string `mapstructure:"packer_build_name"`
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PackerDebug bool `mapstructure:"packer_debug"`
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PackerForce bool `mapstructure:"packer_force"`
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RawBootWait string `mapstructure:"boot_wait"`
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RawShutdownTimeout string `mapstructure:"shutdown_timeout"`
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RawSSHWaitTimeout string `mapstructure:"ssh_wait_timeout"`
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bootWait time.Duration ``
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shutdownTimeout time.Duration ``
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sshWaitTimeout time.Duration ``
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}
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func (b *Builder) Prepare(raws ...interface{}) error {
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var md mapstructure.Metadata
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decoderConfig := &mapstructure.DecoderConfig{
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Metadata: &md,
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Result: &b.config,
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}
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decoder, err := mapstructure.NewDecoder(decoderConfig)
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if err != nil {
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return err
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}
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for _, raw := range raws {
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err := decoder.Decode(raw)
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if err != nil {
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return err
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}
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}
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// Accumulate any errors
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errs := make([]error, 0)
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// Unused keys are errors
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if len(md.Unused) > 0 {
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sort.Strings(md.Unused)
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for _, unused := range md.Unused {
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if unused != "type" && !strings.HasPrefix(unused, "packer_") {
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errs = append(
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errs, fmt.Errorf("Unknown configuration key: %s", unused))
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}
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}
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}
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if b.config.DiskSize == 0 {
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b.config.DiskSize = 40000
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}
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if b.config.FloppyFiles == nil {
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b.config.FloppyFiles = make([]string, 0)
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}
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if b.config.GuestAdditionsPath == "" {
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b.config.GuestAdditionsPath = "VBoxGuestAdditions.iso"
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}
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if b.config.GuestOSType == "" {
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b.config.GuestOSType = "Other"
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}
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if b.config.HTTPPortMin == 0 {
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b.config.HTTPPortMin = 8000
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}
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if b.config.HTTPPortMax == 0 {
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b.config.HTTPPortMax = 9000
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}
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if b.config.OutputDir == "" {
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b.config.OutputDir = fmt.Sprintf("output-%s", b.config.PackerBuildName)
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}
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if b.config.RawBootWait == "" {
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b.config.RawBootWait = "10s"
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}
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if b.config.SSHHostPortMin == 0 {
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b.config.SSHHostPortMin = 2222
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}
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if b.config.SSHHostPortMax == 0 {
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b.config.SSHHostPortMax = 4444
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}
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if b.config.SSHPort == 0 {
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b.config.SSHPort = 22
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}
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if b.config.VBoxManage == nil {
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b.config.VBoxManage = make([][]string, 0)
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}
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if b.config.VBoxVersionFile == "" {
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b.config.VBoxVersionFile = ".vbox_version"
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}
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if b.config.VMName == "" {
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b.config.VMName = fmt.Sprintf("packer-%s", b.config.PackerBuildName)
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}
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if b.config.HTTPPortMin > b.config.HTTPPortMax {
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errs = append(errs, errors.New("http_port_min must be less than http_port_max"))
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}
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if b.config.ISOChecksum == "" {
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errs = append(errs, errors.New("Due to large file sizes, an iso_checksum is required"))
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} else {
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b.config.ISOChecksum = strings.ToLower(b.config.ISOChecksum)
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}
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if b.config.ISOChecksumType == "" {
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errs = append(errs, errors.New("The iso_checksum_type must be specified."))
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} else {
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b.config.ISOChecksumType = strings.ToLower(b.config.ISOChecksumType)
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if h := common.HashForType(b.config.ISOChecksumType); h == nil {
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errs = append(
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errs,
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fmt.Errorf("Unsupported checksum type: %s", b.config.ISOChecksumType))
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}
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}
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if b.config.ISOUrl == "" {
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errs = append(errs, errors.New("An iso_url must be specified."))
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} else {
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url, err := url.Parse(b.config.ISOUrl)
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if err != nil {
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errs = append(errs, fmt.Errorf("iso_url is not a valid URL: %s", err))
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} else {
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if url.Scheme == "" {
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url.Scheme = "file"
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}
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if url.Scheme == "file" {
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if _, err := os.Stat(url.Path); err != nil {
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errs = append(errs, fmt.Errorf("iso_url points to bad file: %s", err))
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}
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} else {
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supportedSchemes := []string{"file", "http", "https"}
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scheme := strings.ToLower(url.Scheme)
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found := false
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for _, supported := range supportedSchemes {
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if scheme == supported {
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found = true
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break
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}
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}
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if !found {
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errs = append(errs, fmt.Errorf("Unsupported URL scheme in iso_url: %s", scheme))
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}
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}
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}
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if len(errs) == 0 {
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// Put the URL back together since we may have modified it
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b.config.ISOUrl = url.String()
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}
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}
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if b.config.GuestAdditionsSHA256 != "" {
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b.config.GuestAdditionsSHA256 = strings.ToLower(b.config.GuestAdditionsSHA256)
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}
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if b.config.GuestAdditionsURL != "" {
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url, err := url.Parse(b.config.GuestAdditionsURL)
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if err != nil {
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errs = append(errs, fmt.Errorf("guest_additions_url is not a valid URL: %s", err))
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} else {
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if url.Scheme == "" {
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url.Scheme = "file"
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}
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if url.Scheme == "file" {
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if _, err := os.Stat(url.Path); err != nil {
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errs = append(errs, fmt.Errorf("guest_additions_url points to bad file: %s", err))
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}
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} else {
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supportedSchemes := []string{"file", "http", "https"}
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scheme := strings.ToLower(url.Scheme)
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found := false
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for _, supported := range supportedSchemes {
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if scheme == supported {
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found = true
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break
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}
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}
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if !found {
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errs = append(errs, fmt.Errorf("Unsupported URL scheme in guest_additions_url: %s", scheme))
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}
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}
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}
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if len(errs) == 0 {
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// Put the URL back together since we may have modified it
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b.config.GuestAdditionsURL = url.String()
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}
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}
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if !b.config.PackerForce {
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if _, err := os.Stat(b.config.OutputDir); err == nil {
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errs = append(
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errs,
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errors.New("Output directory already exists. It must not exist."))
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}
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}
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b.config.bootWait, err = time.ParseDuration(b.config.RawBootWait)
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if err != nil {
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errs = append(errs, fmt.Errorf("Failed parsing boot_wait: %s", err))
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}
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if b.config.RawShutdownTimeout == "" {
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b.config.RawShutdownTimeout = "5m"
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}
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if b.config.RawSSHWaitTimeout == "" {
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b.config.RawSSHWaitTimeout = "20m"
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}
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b.config.shutdownTimeout, err = time.ParseDuration(b.config.RawShutdownTimeout)
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if err != nil {
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errs = append(errs, fmt.Errorf("Failed parsing shutdown_timeout: %s", err))
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}
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if b.config.SSHHostPortMin > b.config.SSHHostPortMax {
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errs = append(errs, errors.New("ssh_host_port_min must be less than ssh_host_port_max"))
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}
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if b.config.SSHUser == "" {
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errs = append(errs, errors.New("An ssh_username must be specified."))
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}
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b.config.sshWaitTimeout, err = time.ParseDuration(b.config.RawSSHWaitTimeout)
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if err != nil {
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errs = append(errs, fmt.Errorf("Failed parsing ssh_wait_timeout: %s", err))
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}
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b.driver, err = b.newDriver()
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if err != nil {
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errs = append(errs, fmt.Errorf("Failed creating VirtualBox driver: %s", err))
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}
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if len(errs) > 0 {
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return &packer.MultiError{errs}
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}
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return nil
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}
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func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) {
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steps := []multistep.Step{
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new(stepDownloadGuestAdditions),
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new(stepDownloadISO),
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new(stepPrepareOutputDir),
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&common.StepCreateFloppy{
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Files: b.config.FloppyFiles,
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},
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new(stepHTTPServer),
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new(stepSuppressMessages),
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new(stepCreateVM),
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new(stepCreateDisk),
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new(stepAttachISO),
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new(stepAttachFloppy),
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new(stepForwardSSH),
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new(stepVBoxManage),
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new(stepRun),
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new(stepTypeBootCommand),
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&common.StepConnectSSH{
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SSHAddress: sshAddress,
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SSHConfig: sshConfig,
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SSHWaitTimeout: b.config.sshWaitTimeout,
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},
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new(stepUploadVersion),
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new(stepUploadGuestAdditions),
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new(common.StepProvision),
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new(stepShutdown),
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new(stepExport),
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}
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// Setup the state bag
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state := make(map[string]interface{})
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state["cache"] = cache
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state["config"] = &b.config
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state["driver"] = b.driver
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state["hook"] = hook
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state["ui"] = ui
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// Run
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if b.config.PackerDebug {
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b.runner = &multistep.DebugRunner{
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Steps: steps,
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PauseFn: common.MultistepDebugFn(ui),
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}
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} else {
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b.runner = &multistep.BasicRunner{Steps: steps}
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}
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b.runner.Run(state)
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// If there was an error, return that
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if rawErr, ok := state["error"]; ok {
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return nil, rawErr.(error)
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}
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// If we were interrupted or cancelled, then just exit.
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if _, ok := state[multistep.StateCancelled]; ok {
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return nil, errors.New("Build was cancelled.")
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}
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if _, ok := state[multistep.StateHalted]; ok {
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return nil, errors.New("Build was halted.")
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}
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// Compile the artifact list
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files := make([]string, 0, 5)
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visit := func(path string, info os.FileInfo, err error) error {
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if !info.IsDir() {
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files = append(files, path)
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}
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return err
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}
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if err := filepath.Walk(b.config.OutputDir, visit); err != nil {
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return nil, err
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}
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artifact := &Artifact{
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dir: b.config.OutputDir,
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f: files,
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}
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return artifact, nil
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}
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func (b *Builder) Cancel() {
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if b.runner != nil {
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log.Println("Cancelling the step runner...")
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b.runner.Cancel()
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}
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}
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func (b *Builder) newDriver() (Driver, error) {
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vboxmanagePath, err := exec.LookPath("VBoxManage")
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if err != nil {
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return nil, err
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}
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log.Printf("VBoxManage path: %s", vboxmanagePath)
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driver := &VBox42Driver{vboxmanagePath}
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if err := driver.Verify(); err != nil {
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return nil, err
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}
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return driver, nil
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}
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