Class List Method List File List

# Class: Yast::RestoreClass

Inherits:
  Module
  - Object
  - Module
  - Yast::RestoreClass
  show all
Defined in:
  ../../src/modules/Restore.rb

## Instance Method Summary (collapse)

- - (Boolean) ActivateBootloader

  Activate boot loader configuration if requested.

- - (Hash) AddVolume(file)

  Add next volume - check volume, copy volume to the temp.

- - (Object) CheckAndPrepareNFS(parsed_url)

  Checks whether the portmapper service is installed and started.

- - (Hash) CheckVolume(filename, num)

  Check if volume number in archive is equal to expected volume number.

- - (Object) ClearInstalledPackagesCache

  Clear cache of installed packages.

- - (Hash) CopyVolume(filename, num)

  Copy volume to the local temporary directory.

- - (Hash) Export

  Dump the restore settings to a single map - for use by autoinstallation.

- - (Hash) GetActualInstalledPackages

  Return installed packages.

- - (String) GetArchiveComment

  Return user comment stored in archive.

- - (String) GetArchiveDate

  Return date when backup archive was created.

- - (Array) GetArchiveFiles

  Return list of files in the backup archive.

- - (String) GetArchiveHostname

  Return host name of machine on which backup archive was created.

- - (Hash) GetArchiveInfo

  Return restore configuration.

- - (Hash) GetArchiveInstalledPackages

  Return map with packages installed at backup time (form is $[“package name” : “version”]).

- - (String) GetArchiveName

  Return name of backup archive.

- - (Hash) GetExtraPackages

  Return extra packages (packages which are installed at restore time, but at restore time they are installed).

- - (String) GetInputName

  Return name of backup archive.

- - (Hash) GetMismatchedPackages

  Return packages which have different version at backup archive and in system.

- - (Hash) GetMissingPackages

  Return missing packages (packages which were installed at backup time, but at restore time they are not installed).

- - (Hash) GetSelectedPackages

  Returns selected packages (even partially).

- - (Boolean) Import(settings)

  Get all restore settings - for use by autoinstallation.

- - (Object) IsMultiVolume

  Selected archive has more parts.

- - (Object) main
- - (Object) Modified

  Return modified flag.

- - (Hash) mountCD(cdindex)

  Access to file on CD.

- - (Hash) mountDevice(device)

  Mount device.

- - (Hash) mountFloppy(fdindex)

  Access to file on floppy.

- - (Hash) MountInput(input)

  Mount input source.

- - (Hash) mountNFS(server, file)

  Access to file on NFS server.

- - (Object) ProposeRPMdbRestoration
- - (Boolean) Read(input)

  Read contents of archive.

- - (Hash) ReadActualInstalledPackages

  Read installed packages.

- - (Hash) ReadNextVolume(input)

  Read next volume of multi volume archive.

- - (String) RemoveShortCut(scut)

  Remove shortcut mark from string.

- - (Object) ResetAll

  Clear all settings (archive and list of installed packages).

- - (Object) ResetArchiveSelection

  Clear all archive settings.

- - (Object) RPMrestorable
- - (Object) Set(settings)

  Set settings.

- - (Object) SetModified
- - (Object) SetRestoreSelection(pkgname, selection)

  Change restore selection of package.

- - (Object) SetSelectionProperty(settings)

  Set selection in _auto client and display properties of archive.

- - (String) Summary

  Create restore configuration summary.

- - (Boolean) TestAllVolumes

  Test all volumes together.

- - (Fixnum) TotalFilesToRestore

  Return number of files which will be unpacked from archive.

- - (Fixnum) TotalPackagesToRestore

  Return number of packages which will be restored from archive.

- - (Object) Umount

  Umount mounted file system.

- - (Hash) Write(abort, progress, targetdir)

  Restore files from archive.

- - (String) yesno(b)

  Convert boolean value to translated “yes” or “no” string.

## Instance Method Details

### - (`Boolean`) ActivateBootloader

Activate boot loader configuration if requested. Uses variable Restore::runbootloader

Returns:

- (`Boolean`) —

  true on success

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    # File '../../src/modules/Restore.rb', line 1369

    def ActivateBootloader
      ret = nil

      # disable Bootloader's progress bar
      Progress.off

      if @runbootloader == true && Mode.test == false
        Builtins.y2milestone("activating boot loader configuration")

        # Bootloader function calls were moved to a client
        # to break the build-dependency on yast2-bootloader
        ret = Convert.to_boolean(WFM.call("restore_bootloader"))

        if ret == false
          # error popup message
          Report.Error(_("Boot loader configuration failed."))
        end

        Builtins.y2milestone("boot loader activated: %1", ret)
      end

      # re-enable progress bar
      Progress.on

      ret
    end

### - (`Hash`) AddVolume(file)

Add next volume - check volume, copy volume to the temp. dir.

Parameters:

- file (`String`) —

  File name of volume

Returns:

- (`Hash`) —

  Map $[ “success” : boolean (true on success), “lastvolume” : boolean (true if archive is last volume) ]

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    # File '../../src/modules/Restore.rb', line 734

    def AddVolume(file)
      vol = Ops.add(Builtins.size(@volumeparts), 1)
      success = false

      # check if file is next volume
      check = CheckVolume(file, vol)

      Builtins.y2debug("CheckVolume(%1, %2): %3", file, vol, check)

      if Ops.get_boolean(check, "success", false) == true
        # copy file to temporary directory
        copy = CopyVolume(file, vol)
        Builtins.y2debug("CopyVolume(%1, %2): %3", file, vol, copy)

        if Ops.get_boolean(copy, "success", false) == true
          partname = Ops.get_string(copy, "file", "")

          @volumeparts = Builtins.add(@volumeparts, partname)

          success = true
        end
      end

      {
        "success"    => success,
        "lastvolume" => Ops.get_boolean(check, "lastvolume", true)
      }
    end

### - (`Object`) CheckAndPrepareNFS(parsed_url)

Checks whether the portmapper service is installed and started. Installs and/or starts the service otherwise.

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    # File '../../src/modules/Restore.rb', line 473

    def CheckAndPrepareNFS(parsed_url)
      parsed_url = deep_copy(parsed_url)
      ret = false

      # both new and old services are supported (portmap got replaced by rpcbind)
      # names of packages and service names match
      Builtins.foreach(["rpcbind", "portmap"]) do |portmapper|
        # checking if rpcbind is installed
        package_installed = Convert.to_integer(
          SCR.Execute(
            path(".target.bash"),
            Builtins.sformat("/bin/rpm -q %1", portmapper)
          )
        )
        Builtins.y2milestone(
          "%1 is instaled: %2",
          portmapper,
          package_installed
        )
        if package_installed != 0
          Builtins.y2milestone("%1 package is not installed", portmapper)
          installed = Package.DoInstall([portmapper])
          Builtins.y2milestone(
            "Package %1 installed: %2",
            portmapper,
            installed
          )

          # try next service
          next if installed != true
        end
        # checking if portmapper is running
        portmapper_status = Service.Status(portmapper)
        Builtins.y2milestone("portmap status: %1", portmapper_status)
        # portmapper is running
        if portmapper_status == 0
          ret = true
        else
          # start portmapper
          started = Service.Start(portmapper)
          Builtins.y2milestone("%1 start result: %2", portmapper, started)
          ret = started
        end
        raise Break if ret == true
      end

      ret
    end

### - (`Hash`) CheckVolume(filename, num)

Check if volume number in archive is equal to expected volume number

Parameters:

- filename (`String`) —

  Volume file name

- num (`Fixnum`) —

  Number of volume

Returns:

- (`Hash`) —

  Map $[ “success” : boolean (true on success), “lastvolume” : boolean (true if archive is last volume) ]

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    # File '../../src/modules/Restore.rb', line 659

    def CheckVolume(filename, num)
      success = false
      lastvolume = true

      # test if archive is multi volume - use -v parameter to get file descriptions
      detailresult = Convert.to_map(
        SCR.Execute(
          path(".target.bash_output"),
          Ops.add(Ops.add("/bin/tar -v -t -f '", String.Quote(filename)), "'")
        )
      )

      stdout = Builtins.splitstring(
        Ops.get_string(detailresult, "stdout", ""),
        "\n"
      )
      firstline = Ops.get(stdout, 0, "")

      Builtins.y2debug("Test: First line: %1", firstline)

      # check if first line is volume label number num
      if Builtins.regexpmatch(
          firstline,
          Builtins.sformat("V--------- .* YaST2 backup: Volume %1--.*--", num)
        ) == true
        success = true
      end

      {
        "success"    => success,
        "lastvolume" => Ops.get_integer(detailresult, "exit", -1) == 0
      }
    end

### - (`Object`) ClearInstalledPackagesCache

Clear cache of installed packages. Next use of GetActualInstalledPackages() function will reread installed packages.

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    # File '../../src/modules/Restore.rb', line 332

    def ClearInstalledPackagesCache
      @actualinstalledpackages = nil

      nil
    end

### - (`Hash`) CopyVolume(filename, num)

Copy volume to the local temporary directory

Parameters:

- filename (`String`) —

  Source file

- num (`Fixnum`) —

  Number of volume

Returns:

- (`Hash`) —

  Map $[ “success” : boolean (true on success), “file” : string (file name in the temporary directory) ]

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    # File '../../src/modules/Restore.rb', line 699

    def CopyVolume(filename, num)
      success = false
      tmpfile = Ops.add(
        Ops.add(Ops.add(@tempdir, "/"), Builtins.sformat("%1", num)),
        ".tar"
      )

      # copy multi volume part to temp directory
      exit = Convert.to_integer(
        SCR.Execute(
          path(".target.bash"),
          Ops.add(
            Ops.add(
              Ops.add(Ops.add("/bin/cp '", String.Quote(filename)), "' '"),
              String.Quote(tmpfile)
            ),
            "'"
          )
        )
      )

      if exit == 0
        success = true
      else
        Builtins.y2error("Copy failed")
      end

      { "success" => success, "file" => tmpfile }
    end

### - (`Hash`) Export

Dump the restore settings to a single map - for use by autoinstallation.

Returns:

- (`Hash`) —

  Dumped settings (later acceptable by Import ())

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    # File '../../src/modules/Restore.rb', line 1293

    def Export
      selection = {}

      if @inputname == ""
        # unconfigured
        return {}
      end

      Builtins.foreach(@archive_info) do |package, info|
        sel_type = Ops.get_string(info, "sel_type", " ")
        sel_file = Ops.get_list(info, "sel_file", [])
        package = @nopackage_id if package == ""
        selection = Builtins.add(
          selection,
          package,
          { "sel_type" => sel_type, "sel_file" => sel_file }
        )
      end

      {
        "archives"            => Builtins.prepend(@inputvolumes, @inputname),
        "runbootloader"       => @runbootloader,
        "restoreRPMdb"        => @restoreRPMdb,
        "completerestoration" => @completerestoration,
        "selection"           => selection
      }
    end

### - (`Hash`) GetActualInstalledPackages

Return installed packages. Result is cached in Restore module, so only first use takes long time

Returns:

- (`Hash`) —

  Map $[ “packagename” : “version” ]

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    # File '../../src/modules/Restore.rb', line 214

    def GetActualInstalledPackages
      if @actualinstalledpackages == {} || @actualinstalledpackages == nil
        @actualinstalledpackages = ReadActualInstalledPackages()
      end

      deep_copy(@actualinstalledpackages)
    end

### - (`String`) GetArchiveComment

Return user comment stored in archive. Comment is stored in file info/comment.

Returns:

- (`String`) —

  Archive comment

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    # File '../../src/modules/Restore.rb', line 160

    def GetArchiveComment
      @comment
    end

### - (`String`) GetArchiveDate

Return date when backup archive was created. Date is stored in archive in file info/date.

Returns:

- (`String`) —

  Date

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    # File '../../src/modules/Restore.rb', line 142

    def GetArchiveDate
      @date
    end

### - (`Array`) GetArchiveFiles

Return list of files in the backup archive

Returns:

- (`Array`) —

  Files in the archive

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    # File '../../src/modules/Restore.rb', line 178

    def GetArchiveFiles
      deep_copy(@archivefiles)
    end

### - (`String`) GetArchiveHostname

Return host name of machine on which backup archive was created. Host name is stored in archive in file info/hostname.

Returns:

- (`String`) —

  Host name

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    # File '../../src/modules/Restore.rb', line 166

    def GetArchiveHostname
      @hostname
    end

### - (`Hash`) GetArchiveInfo

Return restore configuration

Returns:

- (`Hash`) —

  Map $[ “packagename” : $[“vers” : “version”, “files” : [“files in the archive”], “prefix” : “installprefix”, “descr” : “Short description”, “sel_type” : “X”, “sel_file” : [“selected files to restore”] ] ], possible values for “sel_type” key are: “X” - restore all files from archive, “ ” - do not restore this package, “P” - partial restore, restore only selected files at “sel_file” key. Package name “” means files not owned by any package.

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    # File '../../src/modules/Restore.rb', line 1324

    def GetArchiveInfo
      deep_copy(@archive_info)
    end

### - (`Hash`) GetArchiveInstalledPackages

Return map with packages installed at backup time (form is $[“package name” : “version”]).

Returns:

- (`Hash`) —

  Installed packages at backup time

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    # File '../../src/modules/Restore.rb', line 172

    def GetArchiveInstalledPackages
      deep_copy(@installedpkgs)
    end

### - (`String`) GetArchiveName

Return name of backup archive

Returns:

- (`String`) —

  File name

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    # File '../../src/modules/Restore.rb', line 154

    def GetArchiveName
      @filename
    end

### - (`Hash`) GetExtraPackages

Return extra packages (packages which are installed at restore time, but at restore time they are installed)

Returns:

- (`Hash`) —

  Map $[ “packagename” : $[ “ver” : “version”, “descr” : “Short description of the package”]], key description is present only if decription exists

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    # File '../../src/modules/Restore.rb', line 258

    def GetExtraPackages
      r = {}

      GetActualInstalledPackages()

      # filter actual installed packages out
      r = Builtins.filter(@actualinstalledpackages) do |p, v|
        Builtins.haskey(@installedpkgs, p) != true
      end

      # add descriptions
      ret = Builtins.mapmap(r) do |pkg, version|
        descr = Mode.test == false ? Pkg.PkgSummary(pkg) : ""
        if descr == nil
          next { pkg => { "ver" => version } }
        else
          next { pkg => { "ver" => version, "descr" => descr } }
        end
      end

      deep_copy(ret)
    end

### - (`String`) GetInputName

Return name of backup archive

Returns:

- (`String`) —

  Input name file name

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    # File '../../src/modules/Restore.rb', line 148

    def GetInputName
      @inputname
    end

### - (`Hash`) GetMismatchedPackages

Return packages which have different version at backup archive and in system

Returns:

- (`Hash`) —

  Map $[ “packagename” : $[ “inst”: “installed version”, “ver” : “version at backup time, ”descr“ : ”Short description of the package“]], key description is present only if decription exists

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    # File '../../src/modules/Restore.rb', line 283

    def GetMismatchedPackages
      ret = {}

      GetActualInstalledPackages()

      Builtins.foreach(@actualinstalledpackages) do |p, v|
        if Builtins.haskey(@installedpkgs, p) == true
          backupversion = Ops.get(@installedpkgs, p, "")

          if backupversion != v
            descr = Mode.test == false ? Pkg.PkgSummary(p) : ""

            ret = descr != nil ?
              Builtins.add(
                ret,
                p,
                { "ver" => backupversion, "inst" => v, "descr" => descr }
              ) :
              Builtins.add(ret, p, { "ver" => backupversion, "inst" => v })
          end
        end
      end

      deep_copy(ret)
    end

### - (`Hash`) GetMissingPackages

Return missing packages (packages which were installed at backup time, but at restore time they are not installed)

Returns:

- (`Hash`) —

  Map $[ “packagename” : $[ “ver” : “version”, “descr” : “Short description of the package”]], key description is present only if decription exists

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    # File '../../src/modules/Restore.rb', line 225

    def GetMissingPackages
      r = {}

      GetActualInstalledPackages()

      # filter actual installed packages out
      r = Builtins.filter(@installedpkgs) do |p, v|
        Builtins.haskey(@actualinstalledpackages, p) != true
      end

      Builtins.y2debug("actualinstalledpackages: %1", @actualinstalledpackages)
      Builtins.y2debug("GetMissingPackages r: %1", r)

      # add descriptions
      ret = Builtins.mapmap(r) do |pkg, version|
        descr = Mode.test == false ? Pkg.PkgSummary(pkg) : ""
        if descr == nil
          next { pkg => { "ver" => version } }
        else
          next { pkg => { "ver" => version, "descr" => descr } }
        end
      end

      # ignore gpg-pubkey packages - they are not real RPMs
      ret = Builtins.filter(ret) { |pkg, inf| pkg != "gpg-pubkey" }

      Builtins.y2debug("GetMissingPackages ret: %1", ret)

      deep_copy(ret)
    end

### - (`Hash`) GetSelectedPackages

Returns selected packages (even partially).

Returns:

- (`Hash`) —

  Map with same keys as map returned by GetArchiveInfo()

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    # File '../../src/modules/Restore.rb', line 313

    def GetSelectedPackages
      ret = {}

      if @archive_info != nil
        # filter out unselected packages
        ret = Builtins.filter(@archive_info) do |p, info|
          sel_type = Ops.get_string(info, "sel_type", " ")
          if sel_type == "X" || sel_type == "P"
            next true
          else
            next false
          end
        end
      end

      deep_copy(ret)
    end

### - (`Boolean`) Import(settings)

Get all restore settings - for use by autoinstallation

Parameters:

- settings (`Hash`) —

  The YCP structure to be imported

Returns:

- (`Boolean`) —

  True on success

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    # File '../../src/modules/Restore.rb', line 1281

    def Import(settings)
      settings = deep_copy(settings)
      return false if settings == nil

      Set(settings)

      true
    end

### - (`Object`) IsMultiVolume

Selected archive has more parts

Returns:

- boolen True if archive have more than one part.

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    # File '../../src/modules/Restore.rb', line 136

    def IsMultiVolume
      Ops.greater_than(Builtins.size(@volumeparts), 0)
    end

### - (`Object`) main

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    # File '../../src/modules/Restore.rb', line 45

    def main
      Yast.import "UI"
      Yast.import "Pkg"

      Yast.import "Progress"
      Yast.import "Report"
      Yast.import "Mode"
      Yast.import "Summary"
      Yast.import "Service"
      Yast.import "Package"
      Yast.import "Label"
      Yast.import "Popup"
      Yast.import "URL"
      Yast.import "Message"
      Yast.import "String"

      textdomain "restore"

      # local file name (can be on mounted file system)
      @filename = ""

      # entered file name (e.g. nfs://server:/dir/archive.tar)
      @inputname = ""

      @completerestoration = false

      # list of volumes in URL-like syntax
      @inputvolumes = []

      # contents of archive
      @archivefiles = []

      # installed packages at backup time
      @installedpkgs = {}

      # list of installed packages
      @actualinstalledpackages = {}

      @complete_backup = []

      # restoration archive and selection
      # "vers" : "version", "files" : ["files"], "prefix" : "prefix", "descr" : "description", "sel_type" : "X", "sel_file" : [""]
      @archive_info = {}

      @autoinst_info = {}

      # information stored in archive
      @date = ""
      @hostname = ""
      @comment = ""

      # list of files
      @volumeparts = []

      # temporary directory
      @tempdir = ""

      # restore files to the selected directory
      @targetDirectory = "/"

      # mount point, stored for unmounting
      @mountpoint = ""

      # nopackage identification stored in Exported map
      # (to prevent empty tag in XML profile)
      @nopackage_id = "_NoPackage_"

      # Run lilo after files are restored
      @runbootloader = true

      # Rewrite RPM db - unapack /var/lib/rpm/* files from backup if present
      @restoreRPMdb = nil

      @config_modified = false
    end

### - (`Object`) Modified

Return modified flag

Returns:

- true if modified

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    # File '../../src/modules/Restore.rb', line 124

    def Modified
      @config_modified
    end

### - (`Hash`) mountCD(cdindex)

Access to file on CD

Parameters:

- cdindex (`Fixnum`) —

  Index of CD drive (in list SCR::Read(.probe.cdrom))

Returns:

- (`Hash`) —

  $[ “mounted” : boolena (true on success), “mpoint” : string (mount point) ]

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    # File '../../src/modules/Restore.rb', line 399

    def mountCD(cdindex)
      drives = Convert.to_list(SCR.Read(path(".probe.cdrom")))

      if cdindex == nil ||
          Ops.greater_than(cdindex, Ops.subtract(Builtins.size(drives), 1))
        return { "mounted" => false }
      end

      cddevice = Ops.get_string(drives, [cdindex, "dev_name"], "/dev/cdrom")
      tmpdir = Convert.to_string(SCR.Read(path(".target.tmpdir")))
      mpoint = Ops.add(tmpdir, "/cd")

      # create mount point directory
      SCR.Execute(path(".target.mkdir"), mpoint)

      result = Convert.to_boolean(
        SCR.Execute(path(".target.mount"), [cddevice, mpoint], "-o ro")
      )

      { "mounted" => result, "mpoint" => mpoint }
    end

### - (`Hash`) mountDevice(device)

Mount device

Parameters:

- device (`String`) —

  Device file name (e.g. /dev/cdrom, /dev/sda…)

Returns:

- (`Hash`) —

  Map $[ “mounted” : boolean (true on success), “mpoint” : string (mount point where device was mounted) ];

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    # File '../../src/modules/Restore.rb', line 453

    def mountDevice(device)
      return { "mounted" => false } if device == nil || device == ""

      tmpdir = Convert.to_string(SCR.Read(path(".target.tmpdir")))
      mpoint = Ops.add(tmpdir, "/mount")

      # create mount point directory
      SCR.Execute(path(".target.mkdir"), mpoint)

      # mount read-only
      result = Convert.to_boolean(
        SCR.Execute(path(".target.mount"), [device, mpoint], "-o ro")
      )

      { "mounted" => result, "mpoint" => mpoint }
    end

### - (`Hash`) mountFloppy(fdindex)

Access to file on floppy

Parameters:

- fdindex (`Fixnum`) —

  Index of floppy drive (in list SCR::Read(.probe.floppy))

Returns:

- (`Hash`) —

  $[ “mounted” : boolena (true on success), “mpoint” : string (mount point) ]

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    # File '../../src/modules/Restore.rb', line 426

    def mountFloppy(fdindex)
      drives = Convert.to_list(SCR.Read(path(".probe.floppy")))

      if fdindex == nil ||
          Ops.greater_than(fdindex, Ops.subtract(Builtins.size(drives), 1))
        return { "mounted" => false }
      end

      fddevice = Ops.get_string(drives, [fdindex, "dev_name"], "/dev/fd0")
      tmpdir = Convert.to_string(SCR.Read(path(".target.tmpdir")))
      mpoint = Ops.add(tmpdir, "/fd")

      # create mount point directory
      SCR.Execute(path(".target.mkdir"), mpoint)

      result = Convert.to_boolean(
        SCR.Execute(path(".target.mount"), [fddevice, mpoint], "-o ro")
      )

      { "mounted" => result, "mpoint" => mpoint }
    end

### - (`Hash`) MountInput(input)

Mount input source

Parameters:

- input (`String`) —

  File in URl-like syntax

Returns:

- (`Hash`) —

  Map $[ “success” : boolean (true on success), “mpoint” : string (mount point), “file” : string (file name on the local system) ];

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    # File '../../src/modules/Restore.rb', line 526

    def MountInput(input)
      Builtins.y2milestone("MountInput(%1)", input)

      success = false
      mpoint = ""
      file = ""

      #parse 'input'
      nfsprefix = "nfs://"
      fileprefix = "file://"
      devprefix = "dev://"
      cdprefix = "cd" # cd prefix can be "cd://" (equivalent to "cd0://"), "cd1://", "cd2://", ... number of CD identification
      fdprefix = "fd"

      parsed_url = URL.Parse(input)
      scheme = Ops.get_string(parsed_url, "scheme", "file")

      if scheme == "nfs"
        if CheckAndPrepareNFS(parsed_url)
          Builtins.y2milestone("NFS-related services adjusted")
        else
          Builtins.y2error("Cannot adjust NFS-related services")
        end

        Builtins.y2milestone(
          "NFS source - server: %1  file: %2",
          Ops.get_string(parsed_url, "host", ""),
          Ops.get_string(parsed_url, "path", "")
        )
        mountresult = mountNFS(
          Ops.get_string(parsed_url, "host", ""),
          Ops.get_string(parsed_url, "path", "")
        )

        if Ops.get_boolean(mountresult, "mounted", false) == false
          Builtins.y2error("Cannot read source '%1' - NFS mount failed", input)
        else
          mpoint = Ops.get_string(mountresult, "mountpoint", "")
          file = Ops.add(
            Ops.add(mpoint, "/"),
            Ops.get_string(mountresult, "file", "")
          )
          success = true

          Builtins.y2milestone("mpoint: %1", mpoint)
          Builtins.y2milestone("file: %1", file)
        end
      elsif scheme == "dev"
        device = Ops.get_string(parsed_url, "host", "")
        devfile = Ops.get_string(parsed_url, "path", "")

        Builtins.y2milestone(
          "Device source - device: %1  file: %2",
          device,
          devfile
        )

        mountresult = mountDevice(device)

        if Ops.get_boolean(mountresult, "mounted", false) == false
          Builtins.y2error(
            "Cannot read source '%1' - device mount failed",
            input
          )
        else
          mpoint = Ops.get_string(mountresult, "mpoint", "")
          file = Ops.add(Ops.add(mpoint, "/"), devfile)
          success = true
        end
      elsif scheme == "file"
        file = Builtins.substring(input, Builtins.size(fileprefix))
        Builtins.y2milestone("FILE source: %1", file)

        success = true
      elsif Builtins.regexpmatch(scheme, "^cd[0-9]*")
        # get CD drive index
        cdindex = Builtins.regexpsub(scheme, "^cd0*([0-9]*)", "\\1")
        cdfile = Ops.get_string(parsed_url, "path", "")

        cdindex = "0" if cdindex == nil || cdindex == ""

        cdfile = "" if cdfile == nil

        Builtins.y2milestone("CD source - drive: %1  file: %2", cdindex, cdfile)

        # mount CD
        mountresult = mountCD(Builtins.tointeger(cdindex))

        if Ops.get_boolean(mountresult, "mounted", false) == false
          Builtins.y2error("Cannot read source '%1' - mount failed", input)
        else
          mpoint = Ops.get_string(mountresult, "mpoint", "")
          file = Ops.add(Ops.add(mpoint, "/"), cdfile)
          success = true
        end
      elsif Builtins.regexpmatch(scheme, "^fd[0-9]*")
        # get floppy index
        fdindex = Builtins.regexpsub(scheme, "fd0*([0-9]*)://(.*)", "\\1")
        fdfile = Ops.get_string(parsed_url, "path", "")

        fdindex = "0" if fdindex == nil || fdindex == ""

        fdfile = "" if fdfile == nil

        Builtins.y2milestone(
          "Floppy source - drive: %1  file: %2",
          fdindex,
          fdfile
        )

        # mount floppy
        mountresult = mountFloppy(Builtins.tointeger(fdindex))

        if Ops.get_boolean(mountresult, "mounted", false) == false
          Builtins.y2error("Cannot read source '%1' - mount failed", input)
        else
          mpoint = Ops.get_string(mountresult, "mpoint", "")
          file = Ops.add(Ops.add(mpoint, "/"), fdfile)
          success = true
        end
      else
        Builtins.y2error("Unknown prefix in input: %1", input)
      end

      { "success" => success, "mpoint" => mpoint, "file" => file }
    end

### - (`Hash`) mountNFS(server, file)

Access to file on NFS server

Parameters:

- server (`String`) —

  Name or IP adress of NFS server

- file (`String`) —

  File on the server

Returns:

- (`Hash`) —

  $[ “mounted” : boolena (true on success), “mountpoint” : string (mount point) , “file” : string (file name), “server_dir” : string (directory on the server) ]

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    # File '../../src/modules/Restore.rb', line 355

    def mountNFS(server, file)
      pos = Builtins.findlastof(file, "/")

      if pos != nil
        dir = Builtins.substring(file, 0, pos)
        f = Builtins.substring(file, Ops.add(pos, 1))

        tmpdir = Convert.to_string(SCR.Read(path(".target.tmpdir")))
        mpoint = Ops.add(tmpdir, "/nfs")

        dir = "/" if dir == "" || dir == nil

        # create mount point directory
        SCR.Execute(path(".target.mkdir"), mpoint)

        Builtins.y2milestone("dir: %1", dir)
        Builtins.y2milestone("file: %1", f)
        Builtins.y2milestone("mpoint: %1", mpoint)

        # BNC #682064: also 'nolock' is required
        result = Convert.to_boolean(
          SCR.Execute(
            path(".target.mount"),
            [Ops.add(Ops.add(server, ":"), dir), mpoint],
            "-t nfs -o ro,nolock"
          )
        )

        return {
          "mounted"    => result,
          "mountpoint" => mpoint,
          "file"       => f,
          "server_dir" => dir
        }
      end

      { "mounted" => false }
    end

### - (`Object`) ProposeRPMdbRestoration

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    # File '../../src/modules/Restore.rb', line 2244

    def ProposeRPMdbRestoration
      extra = GetExtraPackages()
      missing = GetMissingPackages()
      mismatched = GetMismatchedPackages()

      selected = GetSelectedPackages()

      # proposed DB restoration
      propose = nil

      Builtins.y2debug("extra: %1, missig: %2", extra, missing)

      selected_list = []
      Builtins.foreach(selected) do |p, _in|
        # store package name and vesion to the list
        selected_list = Builtins.add(
          selected_list,
          Ops.add(Ops.add(p, "-"), Ops.get_string(_in, "vers", ""))
        )
      end

      Builtins.y2debug("selected_list: %1", selected_list)

      # propose restoration when:
      # - missing packages contain only fully backed packages
      # - all fully backed packages will be restored
      # - there is no extra package
      if Builtins.size(extra) == 0
        all = true
        Builtins.y2debug("size(extra): %1", Builtins.size(extra))

        Builtins.foreach(@complete_backup) do |fullpkg|
          #		    integer pos = findlastof(fullpkg, "-");
          #		    string basename = substring(fullpkg, pos);
          #		    string version = substring(fullpkg, 0, pos);
          all = false if !Builtins.contains(selected_list, fullpkg)
        end

        Builtins.y2debug("all completely packages selected: %1", all)

        if all == true
          # check missing packages - it should contain only completely backed up packages
          Builtins.foreach(missing) do |pkg, inf|
            fpkg = Ops.add(Ops.add(pkg, "-"), Ops.get_string(inf, "vers", ""))
            all = false if !Builtins.contains(@complete_backup, fpkg)
          end

          if all == true
            Builtins.y2debug("only fully backed up packages are missing")
            # RPM DB restoration is recommended
            return { "proposed" => true }
          end
        end
      end

      ok = true
      # propose no restoration if only installed packages will be restored
      Builtins.foreach(selected) do |pk, inf|
        version = Ops.get_string(inf, "vers", "")
        # selected packages are not missing
        if ok && (Ops.get(missing, pk) != nil || Ops.get(mismatched, pk) != nil)
          ok = false
        end
      end

      return { "proposed" => false } if ok == true

      # there will be inconsistency between RPM DB and system,
      # some packages will be in DB but no files will be present
      # or there will be files without RPM entry or both
      # it is also possible that package versions do not match

      different_versions = {} # package in system => package in RPM in the archive
      not_in_system = [] # package is in DB in the archive, but not in the system and it won't be restored
      not_in_archiveDB = [] # not in the archive, but in the system

      Builtins.foreach(mismatched) do |p, inf|
        if Ops.get(selected, p) != nil
          #                    different_versions[p + "-" + selected["vers"]:""] = p + "-" + inf["inst"]:"";
          Ops.set(
            different_versions,
            p,
            Ops.add(Ops.add(p, "-"), Ops.get(inf, "inst", ""))
          )
        end
      end

      Builtins.foreach(missing) do |p, inf|
        not_in_system = Builtins.add(
          not_in_system,
          Ops.add(Ops.add(p, "-"), Ops.get_string(inf, "vers", ""))
        )
      end

      Builtins.foreach(extra) do |p, inf|
        not_in_archiveDB = Builtins.add(
          not_in_archiveDB,
          Ops.add(Ops.add(p, "-"), Ops.get_string(inf, "vers", ""))
        )
      end

      # both possible operations (restoration or preserving RPM DB)
      # will cause to inconsistency in system
      {
        "proposed"   => nil,
        "mismatched" => different_versions,
        "missing"    => missing,
        "extra"      => extra
      }
    end

### - (`Boolean`) Read(input)

Read contents of archive

Parameters:

- input (`String`) —

  File name of backup archive. File on NFS server is 'nfs://server:/dir/file.tar', local file: 'file:///dir/file.tar' (prefix is file://, directory is /dir)

Returns:

- (`Boolean`) —

  True if archive was succesfully read, otherwise false (file does not exist, not tar archive, broken archive, archive not created by Backup module, …)

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    # File '../../src/modules/Restore.rb', line 826

    def Read(input)
      # umount old mount point
      Umount()

      if @tempdir == ""
        @tempdir = Convert.to_string(SCR.Read(path(".target.tmpdir")))
      end

      @inputname = input

      if Mode.test == true
        @filename = "/tmp/dummy.tar"

        @archivefiles = [
          "info/",
          "info/date",
          "info/comment",
          "info/files",
          "info/packages_info",
          "info/installed_packages",
          "info/hostname",
          "NOPACKAGE-20020509-0.tar.gz",
          "kdebase3-3.0-19-20020509-0.tar.gz",
          "lprng-3.8.5-49-20020509-0.tar.gz",
          "mozilla-0.9.8-54-20020509-0.tar.gz",
          "netcfg-2002.3.20-0-20020509-0.tar.gz"
        ]

        @date = "13.01.2002 14:25"
        @comment = "Some comments"
        @hostname = "linux.local"

        @installedpkgs = {
          "netcfg"        => "2002.3.20-0",
          "lprng"         => "3.8.5-49",
          "kdebase3"      => "3.0-19",
          "gnome-applets" => "1.4.0.5-98",
          "mozilla"       => "0.9.8-54"
        }
        @actualinstalledpackages = {
          "ggv"      => "1.1.93-167",
          "netcfg"   => "2002.3.20-0",
          "lprng"    => "3.8.5-49",
          "kdebase3" => "3.0-19",
          "aterm"    => "0.4.0"
        }

        @archive_info = {
          ""         => {
            "descr"    => "Files not owned by any package",
            "files"    => ["/.qt/", "/dev/dvd", "/dev/cdrom"],
            "sel_type" => "X"
          },
          "kdebase3" => {
            "descr"    => "KDE base package: base system",
            "files"    => ["/etc/opt/kde3/share/config/kdm/kdmrc"],
            "prefix"   => "",
            "sel_type" => "X",
            "vers"     => "3.0-19"
          },
          "mozilla"  => {
            "descr"    => "Open Source WWW browser",
            "files"    => ["/opt/mozilla/chrome/installed-chrome.txt"],
            "prefix"   => "",
            "sel_type" => "X",
            "vers"     => "0.9.8-54"
          },
          "lprng"    => {
            "descr"    => "LPRng Print Spooler",
            "files"    => ["/etc/init.d/lpd"],
            "prefix"   => "",
            "sel_type" => "X",
            "vers"     => "3.8.5-49"
          },
          "netcfg"   => {
            "descr"    => "Network configuration files in /etc",
            "files"    => [
              "/etc/HOSTNAME",
              "/etc/defaultdomain",
              "/etc/exports",
              "/etc/hosts"
            ],
            "prefix"   => "",
            "sel_type" => "X",
            "vers"     => "2002.3.20-0"
          }
        }

        # set default selection
        @archive_info = Builtins.mapmap(@archive_info) do |p, i|
          i = Builtins.add(
            i,
            "sel_type",
            p == "" ?
              "X" :
              Builtins.haskey(@actualinstalledpackages, p) ? "X" : " "
          )
          { p => i }
        end

        return true
      end

      # mount source
      mresult = MountInput(input)

      Builtins.y2debug("MountInput: %1", mresult)

      if Ops.get_boolean(mresult, "success", false) == false
        # error message
        Report.Error(_("Cannot mount file system."))
        return false
      end

      @filename = Ops.get_string(mresult, "file", "")
      @mountpoint = Ops.get_string(mresult, "mpoint", "")

      Builtins.y2milestone("filename: %1", @filename)
      Builtins.y2milestone("mountpoint: %1", @mountpoint)

      # get archive contents
      result = Convert.to_map(
        SCR.Execute(
          path(".target.bash_output"),
          Ops.add(Ops.add("/bin/tar -t -f '", String.Quote(@filename)), "'")
        )
      )

      # check tar exit value
      if Ops.get_integer(result, "exit", -1) != 0
        # tar failed, check whether file is first volume of multivolume archive
        @volumeparts = []
        addresult = AddVolume(@filename)

        if Ops.get_boolean(addresult, "success", false) == true
          # read archive info from local copy (should be faster)
          @filename = Ops.get(@volumeparts, 0, "")
        else
          # error message
          Report.Error(
            _(
              "Cannot read archive file.\nIt is not a tar archive or it is broken.\n"
            )
          )
          return false
        end
      else
        # if archive is not local or NFS file copy it to tempdir (even if it isn't multi volume),
        # so removable device (e.g. CD-ROM) can be used for package installation later
        if Builtins.substring(input, 0, Builtins.size("file://")) != "file://" &&
            Builtins.substring(input, 0, Builtins.size("nfs://")) != "nfs://"
          # copy archive to local file
          copy = CopyVolume(@filename, 0)

          if Ops.get_boolean(copy, "success", false) == true
            # set file name to local copy
            @filename = Ops.get_string(copy, "file", "")

            # umount file system
            Umount()
          else
            # error message: copy failed
            Report.Error(
              _("Cannot copy archive file\nto temporary directory.\n")
            )
            return false
          end
        end
      end

      # get list of files
      @archivefiles = Builtins.splitstring(
        Ops.get_string(result, "stdout", ""),
        "\n"
      )
      @archivefiles = Builtins.filter(@archivefiles) { |f| f != "" && f != nil }

      compressed_packages_info = Builtins.contains(
        @archivefiles,
        "info/packages_info.gz"
      )
      Builtins.y2milestone(
        "compressed_packages_info: %1",
        compressed_packages_info
      )

      if !(Builtins.contains(@archivefiles, "info/files") &&
          (Builtins.contains(@archivefiles, "info/packages_info") ||
            Builtins.contains(@archivefiles, "info/packages_info.gz")) &&
          Builtins.contains(@archivefiles, "info/installed_packages"))
        # archive doesn't contain files from backup - file is not backup archive or not first volume of multi volume archive
        Builtins.y2error(
          "Archive does not contain 'info/files' or 'info/packages_info' or 'info/installed_packages' file!"
        )

        # error message
        Report.Error(
          _(
            "The archive does not contain the required files.\nIt was probably not created by the backup module.\n"
          )
        )
        return false
      end

      Builtins.y2debug("read archivefiles: %1", @archivefiles)

      infofiles = "info/comment info/hostname info/date info/installed_packages info/files info/complete_backup "

      infofiles = Ops.add(
        infofiles,
        compressed_packages_info ?
          "info/packages_info.gz" :
          "info/packages_info"
      )

      # unpack info files
      result = Convert.to_map(
        SCR.Execute(
          path(".target.bash_output"),
          Ops.add(
            Ops.add(
              Ops.add(
                Ops.add(
                  Ops.add(
                    Ops.add("/bin/tar -C '", String.Quote(@tempdir)),
                    "' -x -f '"
                  ),
                  String.Quote(@filename)
                ),
                "' "
              ),
              infofiles
            ),
            " 2> /dev/null"
          )
        )
      )

      @date = Convert.to_string(
        SCR.Read(path(".target.string"), Ops.add(@tempdir, "/info/date"))
      )
      @comment = Convert.to_string(
        SCR.Read(path(".target.string"), Ops.add(@tempdir, "/info/comment"))
      )
      @hostname = Convert.to_string(
        SCR.Read(path(".target.string"), Ops.add(@tempdir, "/info/hostname"))
      )

      complete_backup_str = Ops.greater_than(
        SCR.Read(
          path(".target.size"),
          Ops.add(@tempdir, "/info/complete_backup")
        ),
        0
      ) ?
        Convert.to_string(
          SCR.Read(
            path(".target.string"),
            Ops.add(@tempdir, "/info/complete_backup")
          )
        ) :
        ""

      Builtins.y2debug("complete_backup_str: %1", complete_backup_str)

      @complete_backup = Builtins.splitstring(complete_backup_str, "\n")
      Builtins.y2milestone("Complete backup: %1", @complete_backup)

      # read archive contents file
      archivefs = Convert.to_string(
        SCR.Read(path(".target.string"), Ops.add(@tempdir, "/info/files"))
      )

      if archivefs != nil
        @archivefiles = Builtins.splitstring(archivefs, "\n")
        @archivefiles = Builtins.filter(@archivefiles) do |pk|
          pk != "" && pk != nil
        end
      end

      Builtins.y2debug("final archivefiles: %1", @archivefiles)

      # read installed packages
      installedpkgs_str = Convert.to_string(
        SCR.Read(
          path(".target.string"),
          Ops.add(@tempdir, "/info/installed_packages")
        )
      )

      # convert string to list
      installedpkgs_list = Builtins.splitstring(installedpkgs_str, "\n")
      installedpkgs_list = Builtins.filter(installedpkgs_list) do |pk|
        pk != "" && pk != nil
      end

      # convert list to map (key - package name, value - package version)
      @installedpkgs = {}

      Builtins.foreach(installedpkgs_list) do |fullname|
        version = Builtins.regexpsub(fullname, ".*-(.*-.*)", "\\1")
        name = Builtins.substring(
          fullname,
          0,
          Ops.subtract(
            Ops.subtract(Builtins.size(fullname), Builtins.size(version)),
            1
          )
        )
        @installedpkgs = Builtins.add(@installedpkgs, name, version)
      end

      if compressed_packages_info == true
        Builtins.y2milestone("Unpacking packages_info.gz file")
        # uncompress compressed package info
        SCR.Execute(
          path(".target.bash"),
          Ops.add(
            Ops.add(
              Ops.add(
                Ops.add("/usr/bin/gunzip -c ", @tempdir),
                "/info/packages_info.gz > "
              ),
              @tempdir
            ),
            "/info/packages_info"
          )
        )
        Builtins.y2milestone("File unpacked")
      end

      # covert package info file to YCP structure by perl script
      Builtins.y2milestone("Converting package info")
      SCR.Execute(
        path(".target.bash"),
        Ops.add(
          Ops.add(
            Ops.add(
              Ops.add(
                "/usr/lib/YaST2/bin/restore_parse_pkginfo.pl < ",
                @tempdir
              ),
              "/info/packages_info > "
            ),
            @tempdir
          ),
          "/info.ycp"
        )
      )

      Builtins.y2milestone("Reading package info")
      @archive_info = Convert.convert(
        SCR.Read(path(".target.ycp"), Ops.add(@tempdir, "/info.ycp")),
        :from => "any",
        :to   => "map <string, map <string, any>>"
      )
      Builtins.y2milestone("Read %1 packages", Builtins.size(@archive_info))

      # read actual installed packages
      GetActualInstalledPackages()

      mismatched = GetMismatchedPackages()

      # add package descriptions and default selection
      @archive_info = Builtins.mapmap(@archive_info) do |p, i|
        # decription of files not owned by any package
        descr = p == "" ?
          _("Files not owned by any package") :
          Pkg.PkgSummary(p)
        i = {} if i == nil
        descr = "" if descr == nil
        t = Builtins.add(i, "descr", descr)
        sel_type = " "
        if Mode.config == false
          # set default selection to "X" (package is installed) or " " (package is not installed)
          if p == ""
            # set "no package" default value to "X"
            sel_type = "X"
          else
            sel_type = Builtins.haskey(@actualinstalledpackages, p) &&
              !Builtins.haskey(mismatched, p) ? "X" : " "
          end
        else
          # in autoinstall-config mode leave preselected value
          sel_type = Ops.get_string(i, "sel_type", " ")
        end
        t = Builtins.add(t, "sel_type", sel_type)
        { p => t }
      end

      if Mode.config == true
        # refresh file selection in autoinstall config mode
        Builtins.y2debug("Setting selection: %1", @autoinst_info)
        SetSelectionProperty(@autoinst_info)
      end

      Builtins.y2milestone(
        "values from archive: date=%1, comment=%2, hostname=%3",
        @date,
        @comment,
        @hostname
      )

      Builtins.y2debug("installed packages at backup time: %1", @installedpkgs)
      Builtins.y2debug(
        "actual installed packages: %1",
        GetActualInstalledPackages()
      )

      true
    end

### - (`Hash`) ReadActualInstalledPackages

Read installed packages.

Returns:

- (`Hash`) —

  Map $[ “packagename” : “version” ]

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    # File '../../src/modules/Restore.rb', line 185

    def ReadActualInstalledPackages
      # do not read installed packages in autoyast config mode
      return {} if Mode.config == true

      # init packager (TODO: later should be removed...)
      Pkg.TargetInit("/", false)

      # read info about installed packages
      info = Pkg.GetPackages(:installed, false)
      Builtins.y2debug("ReadActualInstalledPackages: %1", Builtins.sort(info))

      # process version info
      ret = {}

      Builtins.foreach(info) do |pkg|
        all = Builtins.splitstring(pkg, " ")
        ret = Builtins.add(
          ret,
          Ops.get(all, 0, "unknown"),
          Ops.add(Ops.add(Ops.get(all, 1, ""), "-"), Ops.get(all, 2, ""))
        )
      end

      deep_copy(ret)
    end

### - (`Hash`) ReadNextVolume(input)

Read next volume of multi volume archive

Parameters:

- input (`String`) —

  Archive name in URL-like syntax

Returns:

- (`Hash`) —

  Map $[ “success” : boolean (true on success), “lastvolume” : boolean (true if archive is last volume) ]

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    # File '../../src/modules/Restore.rb', line 2051

    def ReadNextVolume(input)
      # umount mounted file system
      Umount()

      ret = false
      last = true

      # mount source
      mount = MountInput(input)

      if Ops.get_boolean(mount, "success", false) == true
        @mountpoint = Ops.get_string(mount, "mpoint", "")

        # add mounted file
        addvol = AddVolume(Ops.get_string(mount, "file", "dummy"))

        ret = Ops.get_boolean(addvol, "success", false)
        last = Ops.get_boolean(addvol, "lastvolume", true)

        @inputvolumes = Builtins.add(@inputvolumes, input) if ret == true
      end

      { "success" => ret, "lastvolume" => last }
    end

### - (`String`) RemoveShortCut(scut)

Remove shortcut mark from string

Parameters:

- scut (`String`) —

  string with shortcut mark (&)

Returns:

- (`String`) —

  result

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    # File '../../src/modules/Restore.rb', line 2150

    def RemoveShortCut(scut)
      Builtins.mergestring(Builtins.splitstring(scut, "&"), "")
    end

### - (`Object`) ResetAll

Clear all settings (archive and list of installed packages)

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    # File '../../src/modules/Restore.rb', line 2138

    def ResetAll
      ResetArchiveSelection()

      # clear list of installed packages
      @actualinstalledpackages = {}

      nil
    end

### - (`Object`) ResetArchiveSelection

Clear all archive settings

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    # File '../../src/modules/Restore.rb', line 2108

    def ResetArchiveSelection
      # clear selected archive
      @filename = ""
      @inputname = ""

      # clear content of archive
      @archivefiles = []

      # clear installed packages at backup time
      @installedpkgs = {}

      # clear archive selection
      @archive_info = {}

      # clear archive info
      @date = ""
      @hostname = ""
      @comment = ""

      # clear list of files
      @volumeparts = []

      Umount()

      nil
    end

### - (`Object`) RPMrestorable

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    # File '../../src/modules/Restore.rb', line 2363

    def RPMrestorable
      nopkgfiles = Ops.get_list(@archive_info, ["", "files"], [])
      Builtins.contains(nopkgfiles, "/var/lib/rpm/Packages")
    end

### - (`Object`) Set(settings)

Set settings

Parameters:

- settings (`Hash`) —

  Map with settings: start lilo, restore RPM db

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    # File '../../src/modules/Restore.rb', line 1244

    def Set(settings)
      settings = deep_copy(settings)
      Builtins.y2milestone("Using settings: %1", settings)
      @runbootloader = Ops.get_boolean(settings, "runbootloader", true)
      @restoreRPMdb = Ops.get_boolean(settings, "restoreRPMdb", false)
      @completerestoration = Ops.get_boolean(
        settings,
        "completerestoration",
        true
      )

      archiveslist = Ops.get_list(settings, "archives", [])
      @inputname = Ops.get(archiveslist, 0, "")
      # read archives
      if Builtins.size(archiveslist) == 0
        # set unconfigured state
        @inputname = ""
        @archive_info = {}
      end

      # set restore selection
      SetSelectionProperty(Ops.get_map(settings, "selection", {}))

      # store settings - file selection will be refreshed after archive selection
      # autoinstall config mode
      @autoinst_info = Ops.get_map(settings, "selection", {})
      Builtins.y2debug("setting autoinst_info: %1", @autoinst_info)

      Builtins.y2debug("archive_info: %1", @archive_info)

      nil
    end

### - (`Object`) SetModified

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    # File '../../src/modules/Restore.rb', line 128

    def SetModified
      @config_modified = true

      nil
    end

### - (`Object`) SetRestoreSelection(pkgname, selection)

Change restore selection of package.

Parameters:

- pkgnames —

  Name of package

- selection (`Hash`) —

  New restore selection for package, map $[ “sel_type” : “X”, “sel_file” : [“files”] ]

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    # File '../../src/modules/Restore.rb', line 766

    def SetRestoreSelection(pkgname, selection)
      selection = deep_copy(selection)
      pkgname = "" if pkgname == @nopackage_id

      if Builtins.haskey(@archive_info, pkgname) == false
        Builtins.y2warning(
          "Package %1 is not in archive, cannot be restored!",
          pkgname
        )
      else
        sel_type = Ops.get_string(selection, "sel_type", " ")
        sel_file = []
        pkginfo = Ops.get(@archive_info, pkgname, {})

        pkginfo = {} if pkginfo == nil

        if sel_type == "P"
          sel_file = Ops.get_list(selection, "sel_file", [])
        elsif sel_type != "X" && sel_type != " "
          Builtins.y2warning(
            "Unknown selection type '%1' for package '%2'",
            sel_type,
            pkgname
          )
        end

        pkginfo = Builtins.add(pkginfo, "sel_type", sel_type)
        pkginfo = Builtins.add(pkginfo, "sel_file", sel_file)

        @archive_info = Builtins.add(@archive_info, pkgname, pkginfo)
      end

      nil
    end

### - (`Object`) SetSelectionProperty(settings)

Set selection in _auto client and display properties of archive

Parameters:

- settings (`Hash{String => map}`) —

  Restoration selection

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    # File '../../src/modules/Restore.rb', line 805

    def SetSelectionProperty(settings)
      settings = deep_copy(settings)
      # set selection for this archive and display archive propertyt
      Builtins.foreach(settings) do |package, info|
        Builtins.y2debug(
          "setting selection: package:%1, selection:%2)",
          package,
          info
        )
        package = "" if package == @nopackage_id
        SetRestoreSelection(package, info)
      end

      nil
    end

### - (`String`) Summary

Create restore configuration summary. Used in autoinstallation restore module configuration.

Returns:

- (`String`) —

  rich text summary

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    # File '../../src/modules/Restore.rb', line 2169

    def Summary
      if @inputname == ""
        # not configured yet
        return Summary.NotConfigured
      else
        # Summary text header
        archives_info = "<P><B>" + _("Backup Archive") + "<B></P>"

        archives_info = Ops.add(Ops.add(archives_info, "<P>"), @inputname)
        Builtins.foreach(@inputvolumes) do |vol|
          archives_info = Ops.add(Ops.add(archives_info, vol), "<BR>")
        end

        archives_info = Ops.add(archives_info, "</P>")

        # Summary text header
        options_info = "<P><B>" + _("Restore Options") + "<B></P>"

        options_info = Ops.add(
          Ops.add(
            Ops.add(
              Ops.add(
                Ops.add(
                  Ops.add(
                    Ops.add(
                      Ops.add(
                        Ops.add(options_info, "<P>"),
                        RemoveShortCut(
                          _(
                            "Activate &boot loader configuration after restoration"
                          )
                        )
                      ),
                      ":  "
                    ),
                    yesno(@runbootloader)
                  ),
                  "<BR>"
                ),
                RemoveShortCut(
                  _("Restore RPM &database (if present in archive)")
                )
              ),
              ":  "
            ),
            yesno(@restoreRPMdb)
          ),
          "<BR></P>"
        )

        # summary text heading
        selection_info = "<P><B>" + _("Packages to Restore") + "</B></P><P>"

        if @completerestoration
          # part of the summary text
          selection_info = Ops.add(
            selection_info,
            _("<I>Restore all files from the archive</I>")
          )
        elsif @archive_info != nil
          Builtins.foreach(@archive_info) do |p, info|
            p = _("--No package--") if p == ""
            if Ops.get_string(info, "sel_type", " ") != " "
              selection_info = Ops.add(Ops.add(selection_info, p), "<BR>")
            end
          end
        end

        selection_info = Ops.add(selection_info, "</P>")

        return Ops.add(Ops.add(archives_info, options_info), selection_info)
      end
    end

### - (`Boolean`) TestAllVolumes

Test all volumes together

Returns:

- (`Boolean`) —

  True: all volumes are OK, false: an error occured

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    # File '../../src/modules/Restore.rb', line 2080

    def TestAllVolumes
      ret = false

      if Ops.greater_than(Builtins.size(@volumeparts), 0)
        param = ""

        Builtins.foreach(@volumeparts) do |f|
          param = Ops.add(Ops.add(Ops.add(param, "-f "), f), " ")
        end

        # echo 'q' to tar stdin - if error occurs tar asks for next volume, q means quit
        exit = Convert.to_integer(
          SCR.Execute(
            path(".target.bash"),
            Ops.add("echo q | /bin/tar -t -M ", param)
          )
        )
        Builtins.y2milestone("Test result: %1", exit)

        ret = exit == 0
      end

      ret
    end

### - (`Fixnum`) TotalFilesToRestore

Return number of files which will be unpacked from archive

Returns:

- (`Fixnum`) —

  Total selected files

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    # File '../../src/modules/Restore.rb', line 1346

    def TotalFilesToRestore
      total = 0

      # filter out unselected packages and compute total restored files
      Builtins.foreach(@archive_info) do |p, info|
        sel_type = Ops.get_string(info, "sel_type", " ")
        if sel_type == "X"
          total = Ops.add(total, Builtins.size(Ops.get_list(info, "files", [])))
        elsif sel_type == "P"
          total = Ops.add(
            total,
            Builtins.size(Ops.get_list(info, "sel_file", []))
          )
        end
      end

      total
    end

### - (`Fixnum`) TotalPackagesToRestore

Return number of packages which will be restored from archive

Returns:

- (`Fixnum`) —

  Total selected packages

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    # File '../../src/modules/Restore.rb', line 1330

    def TotalPackagesToRestore
      total = 0

      # filter out unselected packages
      Builtins.foreach(@archive_info) do |p, info|
        sel_type = Ops.get_string(info, "sel_type", " ")
        total = Ops.add(total, 1) if sel_type == "X" || sel_type == "P"
      end

      total
    end

### - (`Object`) Umount

Umount mounted file system.

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    # File '../../src/modules/Restore.rb', line 340

    def Umount
      if @mountpoint != "" && @mountpoint != nil
        Builtins.y2milestone("Umount called - unmounting %1", @mountpoint)
        SCR.Execute(path(".target.umount"), @mountpoint)
        @mountpoint = ""
      end

      nil
    end

### - (`Hash`) Write(abort, progress, targetdir)

Restore files from archive

Parameters:

- abort (`Proc`) —

  This block is periodically evaluated, if it evaluates to true restoration will be aborted. It should be something like `{return UI::PollInput () == `abort;} if UI exists or`{ return false; } if there is no UI (abort will not be possible).

- progress (`Symbol`) —

  Id of progress bar or nil.

- targetdir (`String`) —

  Directory to which files from archive will be upacked

Returns:

- (`Hash`) —

  Map $[ “aborted” : boolean, “restored” : [ “restored file” ], “failed” : [ “failed file” ] ]

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    # File '../../src/modules/Restore.rb', line 1402

    def Write(abort, progress, targetdir)
      abort = deep_copy(abort)
      restore = deep_copy(@archive_info)
      total = 0
      restoredpackages = 0
      restoredfiles = []
      failedfiles = []
      aborted = false

      if Builtins.size(targetdir) == 0 ||
          Builtins.substring(targetdir, 0, 1) != "/"
        # error message, %1 is directory
        Report.Error(
          Builtins.sformat(_("Invalid target directory (%1)."), targetdir)
        )
        return {
          "aborted"    => aborted,
          "restored"   => restoredfiles,
          "failed"     => failedfiles,
          "packages"   => restoredpackages,
          "bootloader" => false
        }
      end

      # create target directory if it doesn't exist
      out = Convert.to_integer(
        SCR.Execute(path(".target.bash"), Ops.add("/bin/mkdir -p ", targetdir))
      )
      if out != 0
        # error message
        Report.Error(Message.UnableToCreateDirectory(targetdir))
      end

      # filter out unselected packages and compute total restored files
      restore = Builtins.filter(restore) do |p, info|
        sel_type = Ops.get_string(info, "sel_type", " ")
        sel_type = "X" if @completerestoration
        if sel_type == "X"
          total = Ops.add(total, Builtins.size(Ops.get_list(info, "files", [])))
          next true
        elsif sel_type == "P"
          total = Ops.add(
            total,
            Builtins.size(Ops.get_list(info, "sel_file", []))
          )
          next true
        else
          next false
        end
      end

      Builtins.y2milestone("%1 files will be restored from archive", total)

      packages = []
      Builtins.foreach(restore) do |package, info|
        packages = Builtins.add(packages, package)
      end

      i = 0
      ret = :next

      if @restoreRPMdb == true
        rpm_backup_script = "/etc/cron.daily/suse.de-backup-rpmdb"
        # backup existing RPM DB - use aaa_base script which is started from cron
        if Ops.greater_than(
            SCR.Read(path(".target.size"), rpm_backup_script),
            0
          )
          Builtins.y2milestone(
            "Startting RPM backup script (%1)",
            rpm_backup_script
          )
          result = Convert.to_integer(
            SCR.Execute(path(".target.bash"), rpm_backup_script)
          )
          Builtins.y2milestone("RPM backup exit value: %1", result)
        else
          Builtins.y2warning(
            "RPM DB backup script (%1) was not found, DB was not backed up!",
            rpm_backup_script
          )
        end

        stat = Ops.get_string(@archive_info, ["", "sel_type"], " ")
        Builtins.y2warning("NOPACKAGE status: '%1'", stat)
        Builtins.y2warning(
          "NOPACKAGE files: '%1'",
          Ops.get_list(@archive_info, ["", "files"], [])
        )

        if stat == " " || stat == "P"
          # RPM DB restoration is selected, but files not owned by any package are deselected
          # uncompress only RPM DB files, which are in directory /var/lib/rpm

          _RPM = []

          # search RPM DB files
          Builtins.foreach(Ops.get_list(@archive_info, ["", "files"], [])) do |f|
            if Builtins.regexpmatch(f, "^/var/lib/rpm/") == true
              _RPM = Builtins.add(_RPM, f)
            end
          end

          Builtins.y2warning("found RPM DB files: %1", _RPM)

          if stat == " "
            _in = Builtins.eval(Ops.get(@archive_info, "", {}))

            Ops.set(_in, "sel_type", "P")
            Ops.set(_in, "sel_file", _RPM)

            # set new values
            Ops.set(restore, "", Builtins.eval(_in))

            total = Ops.add(total, Builtins.size(_RPM))
          else
            # may be some files are already selected
            # check status of each file
            already_selected = Ops.get_list(@archive_info, ["", "sel_file"], [])

            Builtins.foreach(_RPM) do |rpm_file|
              if !Builtins.contains(already_selected, rpm_file)
                already_selected = Builtins.add(already_selected, rpm_file)
                total = Ops.add(total, 1)
              end
            end

            _in = Builtins.eval(Ops.get(@archive_info, "", {}))
            Ops.set(_in, "sel_file", already_selected)

            # set new values
            Ops.set(restore, "", Builtins.eval(_in))
          end
        end
      end

      Builtins.y2warning("packages: %1", packages)

      while Ops.less_than(i, Builtins.size(packages))
        package = Ops.get(packages, i, "nonexistingpackage")
        info = Ops.get(restore, package, {})
        # progress bar label
        label = package == "" ?
          _("Restoring files not owned by any package...") :
          # progress bar label - %1 is package name
          Builtins.sformat(_("Restoring package %1..."), package)
        sel_type = Ops.get_string(info, "sel_type", "")

        if progress != nil
          # update name of package
          UI.ChangeWidget(Id(progress), :Label, label)
          UI.ChangeWidget(Id(progress), :Value, i)
        end

        if Mode.test == true
          # delay
          Builtins.sleep(300)
        else
          # y2logs will be probably overwritten - backup them
          if package == "" && @targetDirectory == "/"
            copy = Convert.to_integer(
              SCR.Execute(
                path(".target.bash"),
                "cp -r /var/log/YaST2 /var/log/YaST2.before_restore"
              )
            )
            Builtins.y2milestone(
              "copy y2logs to /var/log/YaST2.before_restore: ret=%1",
              copy
            )
          end

          # get subarchive name
          name = package == "" ?
            "NOPACKAGE" :
            Ops.add(Ops.add(package, "-"), Ops.get_string(info, "vers", ""))
          fileinarchive = ""

          Builtins.foreach(@archivefiles) do |f|
            if Builtins.regexpmatch(
                f,
                Ops.add(Ops.add("^", name), "-........-.\\.s{0,1}tar.*")
              ) == true
              Builtins.y2debug("package %1 is in archive file %2", package, f)
              fileinarchive = f
            end
          end

          # BNC #460674, Do not change the system locale
          # It can change I18N characters in output
          locale_modifications = ""

          if fileinarchive == ""
            Builtins.y2error("Can't find subarchive for package %1", package)
          else
            # unpack subarchive at background
            started = nil

            if IsMultiVolume() == true
              param = " "

              Builtins.foreach(@volumeparts) do |f|
                param = Ops.add(
                  Ops.add(Ops.add(param, "-f '"), String.Quote(f)),
                  "' "
                )
              end

              command = Ops.add(
                Ops.add(
                  Ops.add(
                    Ops.add(
                      Ops.add(
                        Ops.add(
                          Ops.add(locale_modifications, "echo q | /bin/tar -C "),
                          @tempdir
                        ),
                        " -x -M "
                      ),
                      param
                    ),
                    "'"
                  ),
                  String.Quote(fileinarchive)
                ),
                "' 2> /dev/null"
              )
              Builtins.y2milestone("Running command: %1", command)

              started = Convert.to_boolean(
                SCR.Execute(path(".background.run"), command)
              )
            else
              command = Ops.add(
                Ops.add(
                  Ops.add(
                    Ops.add(
                      Ops.add(
                        Ops.add(
                          Ops.add(locale_modifications, "/bin/tar -C "),
                          @tempdir
                        ),
                        " -x -f '"
                      ),
                      String.Quote(@filename)
                    ),
                    "' '"
                  ),
                  String.Quote(fileinarchive)
                ),
                "'"
              )
              Builtins.y2milestone("Running command: %1", command)

              started = Convert.to_boolean(
                SCR.Execute(path(".background.run"), command)
              )
            end

            # abort test cycle
            while Convert.to_boolean(SCR.Read(path(".background.isrunning")))
              Builtins.sleep(100)

              aborted = Builtins.eval(abort)

              if aborted == true
                Builtins.y2warning("Restoration aborted!")
                SCR.Execute(path(".background.kill"), nil) # kill subprocess
                break
              end
            end

            # break all packages cycle
            break if aborted == true

            # set compression parameter
            compress = ""

            # use star archiver
            star = false

            if Builtins.regexpmatch(fileinarchive, ".*\\.tar\\.gz$") == true
              compress = "-z"
            elsif Builtins.regexpmatch(fileinarchive, ".*\\.tar\\.bz2$") == true
              compress = "-j"
            elsif Builtins.regexpmatch(fileinarchive, ".*\\.star$") ||
                Builtins.regexpmatch(fileinarchive, ".*\\.star\\.gz$") ||
                Builtins.regexpmatch(fileinarchive, ".*\\.star\\.bz2$") == true
              # star can autodetect used compression
              compress = ""
              star = true
            end

            Builtins.y2debug("compress: %1", compress)
            Builtins.y2debug("star: %1", star)
            Builtins.y2debug("fileinarchive: %1", fileinarchive)

            _RPMdb = @restoreRPMdb ?
              "" :
              star ? "-not pat=var/lib/rpm" : "--exclude var/lib/rpm"

            # files to unpack, "" means all files
            unpackfiles = ""

            # select files to unpack
            if sel_type == "P"
              # strip leading '/'
              Builtins.foreach(Ops.get_list(info, "sel_file", [])) do |f|
                if Ops.greater_than(Builtins.size(f), 1)
                  # remove a leading slash
                  if Builtins.substring(f, 0, 1) == "/"
                    f = Builtins.substring(f, 1)
                  end
                  # every single entry must be quoted
                  unpackfiles = Ops.add(
                    Ops.add(Ops.add(unpackfiles, " '"), String.Quote(f)),
                    "'"
                  )
                end
              end
            end

            # FIXME: use list of files
            # for star: list=filename
            # for tar:  --files-from=filename

            # create (s)tar command
            tarcommand = star == false ?
              Ops.add(
                Ops.add(
                  Ops.add(
                    Ops.add(
                      Ops.add(
                        Ops.add(
                          Ops.add(
                            Ops.add(
                              Ops.add(
                                Ops.add(
                                  Ops.add(
                                    Ops.add(
                                      Ops.add(
                                        Ops.add(
                                          Ops.add(
                                            Ops.add(
                                              Ops.add(
                                                locale_modifications,
                                                "/bin/tar -C "
                                              ),
                                              targetdir
                                            ),
                                            " "
                                          ),
                                          compress
                                        ),
                                        " -x -v -f "
                                      ),
                                      @tempdir
                                    ),
                                    "/"
                                  ),
                                  fileinarchive
                                ),
                                " "
                              ),
                              _RPMdb
                            ),
                            " "
                          ),
                          unpackfiles
                        ),
                        " 2> "
                      ),
                      @tempdir
                    ),
                    "/tar.stderr > "
                  ),
                  @tempdir
                ),
                "/tar.stdout"
              ) :
              Ops.add(
                Ops.add(
                  Ops.add(
                    Ops.add(
                      Ops.add(
                        Ops.add(
                          Ops.add(
                            Ops.add(
                              Ops.add(
                                Ops.add(
                                  Ops.add(
                                    Ops.add(
                                      Ops.add(
                                        Ops.add(
                                          Ops.add(
                                            Ops.add(
                                              Ops.add(
                                                locale_modifications,
                                                "/usr/bin/star -C "
                                              ),
                                              targetdir
                                            ),
                                            " "
                                          ),
                                          compress
                                        ),
                                        " -x -v -U -f "
                                      ),
                                      @tempdir
                                    ),
                                    "/"
                                  ),
                                  fileinarchive
                                ),
                                " "
                              ),
                              _RPMdb
                            ),
                            " "
                          ),
                          unpackfiles
                        ),
                        " 2> "
                      ),
                      @tempdir
                    ),
                    "/tar.stderr > "
                  ),
                  @tempdir
                ),
                "/tar.stdout"
              )
            # -U option: replace existing files

            Builtins.y2milestone("tarcommand: %1", tarcommand)

            # check whether star is installed
            if Ops.less_than(SCR.Read(path(".target.size"), "/usr/bin/star"), 0) &&
                star == true
              # remove short
              cont = Label.ContinueButton
              cont = Builtins.mergestring(Builtins.splitstring(cont, "&"), "")

              # popup message text - ask to install 'star' package
              # %1 is translated 'Continue' label
              inst = Popup.ContinueCancel(
                Builtins.sformat(
                  _(
                    "Package star is needed to extract\n" +
                      "files from the archive.\n" +
                      "Press %1 to install this package.\n"
                  ),
                  cont
                )
              )

              if inst == true
                # install star package

                # initialize package manager
                Pkg.SourceStartCache(true)
                Pkg.TargetInit("/", false)

                ok = true

                # select star package to installation
                ok = Pkg.PkgInstall("star")

                # solve dependencies
                ok = ok && Pkg.PkgSolve(false)

                # perform installation (0 means install from all media)
                result = Pkg.PkgCommit(0)

                # check result
                Builtins.y2debug("PkgCommit: %1", result)
                inst = ok && Ops.get(result, 1) == [] &&
                  Ops.get(result, 2) == []
              end

              # abort restoration if star installation failed
              if inst == false
                # error popup message
                Report.Error(
                  _("Package star is not installed.\nPress OK to exit.\n")
                )
                Builtins.y2error("star package wasn't installed - aborting")

                return {
                  "aborted"    => true,
                  "restored"   => restoredfiles,
                  "failed"     => failedfiles,
                  "packages"   => restoredpackages,
                  "bootloader" => false
                }
              end
            end

            # start subprocess
            started = Convert.to_boolean(
              SCR.Execute(path(".background.run_output"), tarcommand)
            )

            Builtins.y2milestone("Tar command started: %1", started)

            while SCR.Read(path(".background.isrunning")) == true
              Builtins.sleep(100) # small delay

              aborted = Builtins.eval(abort)

              if aborted == true
                Builtins.y2warning("Restoration aborted!")
                SCR.Execute(path(".background.kill"), nil) # kill subprocess
                break
              end
            end

            # read restored files
            stdout = Builtins.splitstring(
              Convert.to_string(
                SCR.Read(
                  path(".target.string"),
                  Ops.add(@tempdir, "/tar.stdout")
                )
              ),
              "\n"
            )

            # remove empty lines
            stdout = Builtins.filter(stdout) do |line|
              Ops.greater_than(Builtins.size(line), 0)
            end if stdout != nil

            # star has more verbose output - get only file names
            if star && stdout != nil
              filteredstdout = []
              Builtins.foreach(stdout) do |line|
                new = Builtins.regexpsub(
                  line,
                  "x (.*) .* bytes, .* tape blocks",
                  "\\1"
                )
                filteredstdout = Builtins.add(filteredstdout, new) if new != nil
              end

              stdout = deep_copy(filteredstdout)
            end

            Builtins.y2debug("stdout: %1", stdout)

            if stdout != nil
              restoredfiles = Convert.convert(
                Builtins.merge(restoredfiles, stdout),
                :from => "list",
                :to   => "list <string>"
              )
            end

            # read failed files
            stderr = Builtins.splitstring(
              Convert.to_string(
                SCR.Read(
                  path(".target.string"),
                  Ops.add(@tempdir, "/tar.stderr")
                )
              ),
              "\n"
            )

            # remove empty lines
            stderr = Builtins.filter(stderr) do |line|
              Ops.greater_than(Builtins.size(line), 0)
            end
            packagefailedfiles = 0

            Builtins.y2warning("stderr: %1", stderr) if stderr != []

            # add file names to failedfiles
            Builtins.foreach(stderr) do |line|
              Builtins.y2warning("line: %1", line)
              if line != nil && line != ""
                file = Builtins.regexpsub(line, "s{0,1}tar: (.*)", "\\1")

                # ignore final star summary
                if file != nil &&
                    !Builtins.regexpmatch(
                      line,
                      "star: .* blocks \\+ .* bytes \\(total of .* bytes = .*k\\)\\."
                    ) &&
                    !Builtins.regexpmatch(line, "star: WARNING: .*")
                  failedfiles = Builtins.add(failedfiles, file)
                  packagefailedfiles = Ops.add(packagefailedfiles, 1)

                  Builtins.y2warning("Restoration of file %1 failed", file)
                end
              end
            end

            # package restoration failed
            if restoredfiles != nil &&
                packagefailedfiles == Builtins.size(restoredfiles)
              Builtins.y2warning("failed package: %1", package)
            else
              restoredpackages = Ops.add(restoredpackages, 1)
            end

            break if aborted == true
          end
        end

        i = Ops.add(i, 1)
      end

      # sort list of restored files and remove duplicates (caused by multiple unpacking)
      restoredfiles = Builtins.toset(restoredfiles)

      # remove failed files
      restoredfiles = Builtins.filter(restoredfiles) do |f|
        !Builtins.contains(failedfiles, f)
      end

      if @runbootloader == true && progress != nil
        # progess bar label
        UI.ChangeWidget(Id(progress), :Label, _("Configuring boot loader..."))
        UI.ChangeWidget(Id(progress), :Value, i)
      end

      bootload = ActivateBootloader()

      {
        "aborted"    => aborted,
        "restored"   => restoredfiles,
        "failed"     => failedfiles,
        "packages"   => restoredpackages,
        "bootloader" => bootload
      }
    end

### - (`String`) yesno(b)

Convert boolean value to translated “yes” or “no” string

Parameters:

- b (`Boolean`) —

  input value

Returns:

- (`String`) —

  translated Yes/No string

    2157
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    2161
    2162
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    2164
    # File '../../src/modules/Restore.rb', line 2157

    def yesno(b)
      ret = "?"

      ret = _("Yes") if b == true
      ret = _("No") if b == false

      ret
    end