Class: Yast::ImageInstallationClass

Inherits:
Module
  • Object
show all
Includes:
Logger
Defined in:
src/modules/ImageInstallation.rb

Constant Summary collapse

IMAGE_COMPRESS_RATIO = 
3.6
MEGABYTE = 
2**20

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#selected_images ⇒ Object (readonly)

Only for checking in tests now



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# File 'src/modules/ImageInstallation.rb', line 1456

def selected_images
  @selected_images
end

Instance Method Details

#_DeployImage(id, target, temporary) ⇒ Boolean

Deploy an image (internal implementation)

Parameters:

  • id (String) —

    string the id of the image

  • target (String) —

    string the directory to deploy the image to

  • temporary (Boolean) —

    boolean true to only mount if possible (no copy)

Returns:

  • (Boolean) —

    true on success



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# File 'src/modules/ImageInstallation.rb', line 578

def _DeployImage(id, target, temporary)
  img = Ops.get(@_images, id, {})
  Builtins.y2error("Image %1 does not exist", id) if img == {}

  type = Ops.get_string(img, "type", "")

  SetCurrentImageDetails(img)

  case type
  when "fs"
    temporary ? MountFsImage(id, target) : DeployFsImage(id, target)
  when "tar"
    DeployTarImage(id, target)
  when "raw"
    DeployDiskImage(id, target)
  else
    Builtins.y2error("Unknown type of image: %1", type)
    false
  end
end

#AddImage(name, file, type) ⇒ Object

Add information about new image

Parameters:

  • name (String) —

    string the name/id of the image

  • file (String) —

    string the file name of the image

  • type (String) —

    string the type of the image, one of "tar" and "fs"



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# File 'src/modules/ImageInstallation.rb', line 195

def AddImage(name, file, type)
  Ops.set(
    @_images,
    file,
    "file" => file, "type" => type, "name" => name
  )

  nil
end

#AdjustProgressLayout(id, steps_total, label) ⇒ Object 



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# File 'src/modules/ImageInstallation.rb', line 1172

def AdjustProgressLayout(id, steps_total, label)
  if !Builtins.haskey(@progress_layout, id)
    Builtins.y2error("Unknown key: %1", id)
    return
  end

  Ops.set(@progress_layout, [id, "label"], label)
  Ops.set(@progress_layout, [id, "steps_total"], steps_total)

  nil
end

#calculate_fs_size(mountpoint) ⇒ Object 



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# File 'src/modules/ImageInstallation.rb', line 1005

def calculate_fs_size(mountpoint)
  cmd = Builtins.sformat("df -P -k %1", mountpoint)
  Builtins.y2milestone("Executing %1", cmd)
  out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd))
  Builtins.y2milestone("Output: %1", out)
  total_str = Ops.get_string(out, "stdout", "")
  total_str = Ops.get(Builtins.splitstring(total_str, "\n"), 1, "")
  Ops.divide(
    Builtins.tointeger(
      Ops.get(Builtins.filter(Builtins.splitstring(total_str, " ")) do |s|
        s != ""
      end, 2, "0")
    ),
    1024
  )
end

#CleanTemporaryImage(id, target) ⇒ Boolean

UnDeploy an image temporarily (if possible, only for the FS images)

Parameters:

  • id (String) —

    string the id of the image

  • target (String) —

    string the directory to deploy the image to,

Returns:

  • (Boolean) —

    true on success



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# File 'src/modules/ImageInstallation.rb', line 621

def CleanTemporaryImage(id, target)
  Builtins.y2milestone(
    "UnDelploying temporary image %1 from %2",
    id,
    target
  )
  if Ops.get_string(@_images, [id, "type"], "") == "fs"
    cmd = Builtins.sformat("umount %1", target)
    out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd))
    Builtins.y2milestone("Executing %1 returned %2", cmd, out)
    return Ops.get_integer(out, "exit", -1) == 0
  end
  Builtins.y2milestone(
    "Cannot undeploy image of type %1",
    Ops.get_string(@_images, [id, "type"], "")
  )
  true
end

#CountMatchingPatterns(imageset_patterns, installed_patterns) ⇒ Object

Returns the intersection of both patterns supported by the imageset and patterns going to be installed.



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# File 'src/modules/ImageInstallation.rb', line 753

def CountMatchingPatterns(imageset_patterns, installed_patterns)
  imageset_patterns = deep_copy(imageset_patterns)
  installed_patterns = deep_copy(installed_patterns)
  ret = 0

  Builtins.foreach(installed_patterns) do |one_installed_pattern|
    ret = Ops.add(ret, 1) if Builtins.contains(imageset_patterns, one_installed_pattern)
  end

  ret
end

#DeployDiskImage(id, target) ⇒ Object 



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# File 'src/modules/ImageInstallation.rb', line 460

def DeployDiskImage(id, target)
  InitRepo()

  file = Ops.get_string(@_images, [id, "file"], "")
  Builtins.y2milestone("Deploying disk image %1 (%2) on %3", id, file, target)
  file = Builtins.sformat("%1/%2", @_image_path, file)
  # BNC #409927
  # Checking files for signatures
  image = Pkg.SourceProvideDigestedFile(@_repo, 1, file, false)

  if image.nil?
    Builtins.y2error("File %1 not found on media", file)
    return false
  end

  Builtins.y2milestone("Copying the image")
  cmd = Builtins.sformat("dd bs=1048576 if=%1 of=%2", image, target) # 1MB of block size
  out = SCR.Execute(path(".target.bash_output"), cmd)
  Builtins.y2milestone("Executing %1 returned %2", cmd, out)

  RemoveTemporaryImage(image)

  out["exit"] == 0
end

#DeployFsImage(id, target) ⇒ Boolean

Deploy an image of the filesystem type

Parameters:

  • id (String) —

    string the id of the image

  • target (String) —

    string the directory to deploy the image to

Returns:

  • (Boolean) —

    true on success



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# File 'src/modules/ImageInstallation.rb', line 410

def DeployFsImage(id, target)
  InitRepo()

  file = Ops.get_string(@_images, [id, "file"], "")
  Builtins.y2milestone("Deploying FS image %1 (%2) on %3", id, file, target)
  file = Builtins.sformat("%1/%2", @_image_path, file)
  # BNC #409927
  # Checking files for signatures
  image = Pkg.SourceProvideDigestedFile(@_repo, 1, file, false)

  if image.nil?
    Builtins.y2error("File %1 not found on media", file)
    return false
  end

  Builtins.y2milestone("Creating temporary directory")
  tmpdir = Ops.add(
    Convert.to_string(SCR.Read(path(".target.tmpdir"))),
    Builtins.sformat("/images/%1", id)
  )
  cmd = Builtins.sformat("test -d %1 || mkdir -p %1", tmpdir)
  out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd))
  Builtins.y2milestone("Executing %1 returned %2", cmd, out)

  Builtins.y2milestone("Mounting the image")
  cmd = Builtins.sformat("mount -o noatime,loop %1 %2", image, tmpdir)
  out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd))
  Builtins.y2milestone("Executing %1 returned %2", cmd, out)

  Builtins.y2milestone("Creating target directory")
  cmd = Builtins.sformat("test -d %1 || mkdir -p %1", target)
  out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd))
  Builtins.y2milestone("Executing %1 returned %2", cmd, out)

  Builtins.y2milestone("Copying contents of the image")
  cmd = Builtins.sformat("cp -a %1/* %2", tmpdir, target)
  out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd))
  Builtins.y2milestone("Executing %1 returned %2", cmd, out)

  Builtins.y2milestone("Unmounting image from temporary directory")
  cmd = Builtins.sformat("umount -d -f -l %1", tmpdir)
  out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd))
  Builtins.y2milestone("Executing %1 returned %2", cmd, out)

  RemoveTemporaryImage(image)

  Ops.get_integer(out, "exit", -1) == 0
  # FIXME: error checking
end

#DeployImage(id, target) ⇒ Boolean

Deploy an image

Parameters:

  • id (String) —

    string the id of the image

  • target (String) —

    string the directory to deploy the image to

Returns:

  • (Boolean) —

    true on success



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# File 'src/modules/ImageInstallation.rb', line 603

def DeployImage(id, target)
  Builtins.y2milestone("Deploying image %1 to %2", id, target)
  _DeployImage(id, target, false)
end

#DeployImages(images, target, progress) ⇒ Object

Deploy all images

Parameters:

  • images (Array<String>) —

    a list of images to deploy

  • target (String) —

    string directory where to deploy the images

  • progress (void (integer, integer)) —

    a function to report overal progress



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# File 'src/modules/ImageInstallation.rb', line 709

def DeployImages(images, target, progress)
  images = deep_copy(images)
  progress = deep_copy(progress)
  # unregister callbacks
  PackageCallbacks.RegisterEmptyProgressCallbacks

  # downloads details*.xml file
  FillUpImagesDetails()

  # register own callback for downloading
  Pkg.CallbackProgressDownload(@download_image_progress) if !@download_image_progress.nil?

  # register own callback for start downloading
  Pkg.CallbackStartDownload(@start_download_handler) if !@start_download_handler.nil?

  num = -1
  @_current_image_from_imageset = -1
  aborted = nil

  Builtins.foreach(images) do |img|
    num = Ops.add(num, 1)
    progress&.call(num, 0)
    if !DeployImage(img, target)
      aborted = true
      Builtins.y2milestone("Aborting...")
      raise Break
    end
    progress&.call(num, 100)
  end

  return nil if aborted == true

  # unregister downloading progress
  Pkg.CallbackProgressDownload(nil) if !@download_image_progress.nil?

  # reregister callbacks
  PackageCallbacks.RestorePreviousProgressCallbacks

  true
  # TODO: error checking
end

#DeployImageTemporarily(id, target) ⇒ Boolean

Deploy an image temporarily (just mount if possible)

Parameters:

  • id (String) —

    string the id of the image

  • target (String) —

    string the directory to deploy the image to,

Returns:

  • (Boolean) —

    true on success



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# File 'src/modules/ImageInstallation.rb', line 612

def DeployImageTemporarily(id, target)
  Builtins.y2milestone("Temporarily delploying image %1 to %2", id, target)
  _DeployImage(id, target, true)
end

#DeployTarImage(id, target) ⇒ Boolean

Deploy an image of the filesystem type

Parameters:

  • id (String) —

    string the id of the image

  • target (String) —

    string the directory to deploy the image to

Returns:

  • (Boolean) —

    true on success



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# File 'src/modules/ImageInstallation.rb', line 275

def DeployTarImage(id, target)
  InitRepo()

  file = Ops.get_string(@_images, [id, "file"], "")
  Builtins.y2milestone("Untarring image %1 (%2) to %3", id, file, target)
  file = Builtins.sformat("%1/%2", @_image_path, file)
  # BNC #409927
  # Checking files for signatures
  image = Pkg.SourceProvideDigestedFile(@_repo, 1, file, false)

  if image.nil?
    Builtins.y2error("File %1 not found on media", file)
    return false
  end

  # reset, adjust labels, etc.
  @tar_image_progress&.call(0)

  Builtins.y2milestone("Creating target directory")
  cmd = Builtins.sformat("test -d %1 || mkdir -p %1", target)
  out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd))
  Builtins.y2milestone("Executing %1 returned %2", cmd, out)

  if Ops.get_integer(out, "exit", -1) != 0
    Builtins.y2error("no directory to extract into, aborting")
    return false
  end

  Builtins.y2milestone("Untarring the image")

  # lzma
  cmd = if Builtins.regexpmatch(image, ".lzma$")
    Builtins.sformat(
      "lzmadec < '%1' | tar --numeric-owner --totals --checkpoint=%3 --record-size=%4 " \
      "-C '%2' -xf -",
      String.Quote(image),
      String.Quote(target),
      @_checkpoint,
      @_record_size
    )
    # xzdec
    # BNC #476079
  elsif Builtins.regexpmatch(image, ".xz$")
    Builtins.sformat(
      "xzdec < '%1' | tar --numeric-owner --totals --checkpoint=%3 --record-size=%4 " \
      "-C '%2' -xf -",
      String.Quote(image),
      String.Quote(target),
      @_checkpoint,
      @_record_size
    )
    # bzip2, gzip
  else
    Builtins.sformat(
      "tar --numeric-owner --checkpoint=%3 --record-size=%4 --totals -C '%2' -xf '%1'",
      String.Quote(image),
      String.Quote(target),
      @_checkpoint,
      @_record_size
    )
  end
  Builtins.y2milestone("Calling: %1", cmd)

  pid = Convert.to_integer(SCR.Execute(path(".process.start_shell"), cmd))

  read_checkpoint_str = "^tar: Read checkpoint ([0123456789]+)$"

  # Otherwise it will never make 100%
  better_feeling_constant = @_checkpoint

  ret = nil
  aborted = false

  while SCR.Read(path(".process.running"), pid) == true
    newline = Convert.to_string(
      SCR.Read(path(".process.read_line_stderr"), pid)
    )

    if newline.nil?
      ret = UI.PollInput
      if [:abort, :cancel].include?(ret)
        if Popup.ConfirmAbort(:unusable)
          Builtins.y2warning("Aborted!")
          aborted = true
          break
        end
      else
        SlideShow.HandleInput(ret)
        Builtins.sleep(200)
      end
    else
      if !Builtins.regexpmatch(newline, read_checkpoint_str)
        Builtins.y2milestone("Deploying image: %1", newline)
        next
      end

      newline = Builtins.regexpsub(newline, read_checkpoint_str, "\\1")

      next if newline.nil? || newline == ""

      @tar_image_progress&.call(
        Ops.add(Builtins.tointeger(newline), better_feeling_constant)
      )
    end
  end

  # BNC #456337
  # Checking the exit code (0 = OK, nil = still running, 'else' = error)
  exitcode = Convert.to_integer(SCR.Read(path(".process.status"), pid))

  if !exitcode.nil? && exitcode != 0
    Builtins.y2milestone(
      "Deploying has failed, exit code was: %1, stderr: %2",
      exitcode,
      SCR.Read(path(".process.read_stderr"), pid)
    )
    aborted = true
  end

  Builtins.y2milestone("Finished")

  return false if aborted

  # adjust labels etc.
  @tar_image_progress&.call(100)

  RemoveTemporaryImage(image)

  true
end

#EnoughPatternsMatching(matching_patterns, patterns_in_imagesets) ⇒ Object 



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# File 'src/modules/ImageInstallation.rb', line 765

def EnoughPatternsMatching(matching_patterns, patterns_in_imagesets)
  return false if matching_patterns.nil? || Ops.less_than(matching_patterns, 0)

  return false if patterns_in_imagesets.nil? || Ops.less_than(patterns_in_imagesets, 0)

  # it's actually matching_patterns = patterns_in_imagesets
  Ops.greater_or_equal(matching_patterns, patterns_in_imagesets)
end

#FileSystemCopy(from, to, progress_start, progress_finish) ⇒ Boolean

Copy a subtree, limit to a single filesystem

Parameters:

  • from (String) —

    string source directory

  • to (String) —

    string target directory

Returns:

  • (Boolean) —

    true on success



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# File 'src/modules/ImageInstallation.rb', line 1026

def FileSystemCopy(from, to, progress_start, progress_finish)
  total_mb = if from == "/"
    # root is a merge of two filesystems, df returns only one part for /
    calculate_fs_size("/read-write") + calculate_fs_size("/read-only")
  else
    0
  end
  total_mb = calculate_fs_size(from) if total_mb == 0
  # Using df-based progress estimation, is rather faster
  #    may be less precise
  #    see bnc#555288
  #     string cmd = sformat ("du -x -B 1048576 -s %1", from);
  #     y2milestone ("Executing %1", cmd);
  #     map out = (map)SCR::Execute (.target.bash_output, cmd);
  #     y2milestone ("Output: %1", out);
  #     string total_str = out["stdout"]:"";
  #     integer total_mb = tointeger (total_str);
  total_mb = (total_mb * IMAGE_COMPRESS_RATIO).to_i # compression ratio - rough estimate
  total_mb = 4096 if total_mb == 0 # should be big enough

  tmp_pipe1 = Ops.add(
    Convert.to_string(SCR.Read(path(".target.tmpdir"))),
    "/system_clone_fifo_1"
  )
  tmp_pipe2 = Ops.add(
    Convert.to_string(SCR.Read(path(".target.tmpdir"))),
    "/system_clone_fifo_2"
  )
  # FIXME: this does not copy pipes in filesystem (usually not an issue)
  cmd = Builtins.sformat(
    "mkfifo %3 ;\n" \
    "\t mkfifo %4 ;\n" \
    "\t tar -C %1 --hard-dereference --numeric-owner -cSf %3 --one-file-system . &\n" \
    "\t dd bs=1048576 if=%3 of=%4 >&2 &\n" \
    "\t jobs -l >&2;\n" \
    "\t tar -C %2 --numeric-owner -xSf %4",
    from,
    to,
    tmp_pipe1,
    tmp_pipe2
  )
  Builtins.y2milestone("Executing %1", cmd)
  process = Convert.to_integer(
    SCR.Execute(path(".process.start_shell"), cmd, {})
  )
  pid = ""

  while Convert.to_boolean(SCR.Read(path(".process.running"), process))
    done = nil
    line = Convert.to_string(
      SCR.Read(path(".process.read_line_stderr"), process)
    )
    until line.nil?
      if pid == ""
        if Builtins.regexpmatch(
          line,
          Builtins.sformat(
            "dd bs=1048576 if=%1 of=%2",
            tmp_pipe1,
            tmp_pipe2
          )
        )
          pid = Builtins.regexpsub(line, "([0-9]+) [^ 0-9]+ +dd", "\\1")
          Builtins.y2milestone("DD's pid: %1", pid)
          # sleep in order not to kill -USR1 to dd too early, otherwise it finishes
          Builtins.sleep(5000)
        else
          pid = ""
        end
      elsif Builtins.regexpmatch(line, "^[0-9]+ ")
        done = Builtins.regexpsub(line, "^([0-9]+) ", "\\1")
      end
      Builtins.y2debug("Done: %1", done)
      line = Convert.to_string(
        SCR.Read(path(".process.read_line_stderr"), process)
      )
    end
    if pid != ""
      cmd = Builtins.sformat("/bin/kill -USR1 %1", pid)
      Builtins.y2debug("Executing %1", cmd)
      SCR.Execute(path(".target.bash"), cmd)
    end
    Builtins.sleep(300)
    next if done.nil?

    progress = Ops.add(
      progress_start,
      Ops.divide(
        Ops.divide(
          Ops.divide(
            Ops.multiply(
              Ops.subtract(progress_finish, progress_start),
              Builtins.tointeger(done) / MEGABYTE # count megabytes
            ),
            total_mb
          ),
          1024
        ),
        1024
      )
    )
    Builtins.y2debug("Setting progress to %1", progress)
    SlideShow.StageProgress(progress, nil)
    SlideShow.SubProgress(
      Ops.divide(
        Ops.divide(
          Ops.divide(
            Ops.multiply(
              Ops.subtract(progress_finish, progress_start),
              Builtins.tointeger(done)
            ),
            total_mb
          ),
          1024
        ),
        1024
      ),
      nil
    )
  end

  copy_result = Convert.to_integer(
    SCR.Read(path(".process.status"), process)
  )
  Builtins.y2milestone("Result: %1", copy_result)
  SCR.Execute(path(".target.remove"), tmp_pipe1)
  SCR.Execute(path(".target.remove"), tmp_pipe2)
  cmd = Builtins.sformat(
    "chown --reference=%1 %2; chmod --reference=%1 %2",
    from,
    to
  )
  Builtins.y2milestone("Executing %1", cmd)
  out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd))
  Builtins.y2milestone("Result: %1", out)
  Ops.get_integer(out, "exit", -1) == 0 && copy_result == 0
end

#FillUpImagesDetails ⇒ Object

Loads non-mandatory details for every single selected image.



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# File 'src/modules/ImageInstallation.rb', line 641

def FillUpImagesDetails
  InitRepo()

  # bnc #439104
  if @_repo.nil?
    Builtins.y2warning("No images-repository defined")
    return true
  end

  # ppc (covers also ppc64), i386, x86_64 ...
  filename = nil

  possible_files = [
    Builtins.sformat("%1/details-%2.xml", @_image_path, Arch.arch_short),
    Builtins.sformat("%1/details.xml", @_image_path)
  ]

  Builtins.foreach(possible_files) do |try_file|
    # BNC #409927
    # Checking files for signatures
    filename = Pkg.SourceProvideDigestedFile(@_repo, 1, try_file, true)
    if !filename.nil? && filename != ""
      Builtins.y2milestone(
        "Using details file: %1 (%2)",
        filename,
        try_file
      )
      raise Break
    end
  end

  if filename.nil?
    Builtins.y2milestone("No image installation details found")
    return false
  end

  begin
    read_details = XML.XMLToYCPFile(filename)
  rescue XMLDeserializationError => e
    Builtins.y2error("Cannot parse imagesets details. #{e.inspect}")
    return false
  end

  if !Builtins.haskey(read_details, "details")
    Builtins.y2warning("No images details in details.xml")
    return false
  end

  @images_details = {}

  Builtins.foreach(Ops.get_list(read_details, "details", [])) do |image_detail|
    file = Ops.get_string(image_detail, "file", "")
    next if file.nil? || file == ""

    files = Builtins.tointeger(Ops.get_string(image_detail, "files", "0"))
    isize = Builtins.tointeger(Ops.get_string(image_detail, "size", "0"))
    Ops.set(@images_details, file, "files" => files, "size" => isize)
  end

  # FIXME: y2debug
  Builtins.y2milestone("Details: %1", @images_details)
  true
end

#FindImageSet(patterns) ⇒ Boolean

Find a set of images which suites selected patterns

Parameters:

  • patterns (Array<String>) —

    a list of patterns which are selected

Returns:

  • (Boolean) —

    true on success or when media does not contain any images



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# File 'src/modules/ImageInstallation.rb', line 784

def FindImageSet(patterns)
  patterns = deep_copy(patterns)
  InitRepo()

  # reset all data
  @_images = {}
  @_image_order = []
  @_metadata_image = ""

  # checking whether images are supported
  # BNC #409927
  # Checking files for signatures
  filename = Pkg.SourceProvideDigestedFile(
    @_repo,
    1,
    Builtins.sformat("%1/images.xml", @_image_path),
    false
  )

  if filename.nil?
    @image_installation_available = false
    Installation.image_installation = false
    Installation.image_only = false
    Builtins.y2milestone("Image list for installation not found")
    return true
  end

  begin
    image_descr = XML.XMLToYCPFile(filename)
  rescue RuntimeError => e
    @image_installation_available = false
    Installation.image_installation = false
    Installation.image_only = false
    Report.Error(_("Failed to read information about installation images"))
    log.error "xml failed to read #{e.inspect}"
    return false
  end

  # images are supported
  # bnc #492745: Do not offer images if there are none
  @image_installation_available = true

  image_sets = Ops.get_list(image_descr, "image_sets", [])
  Builtins.y2debug("Image set descriptions: %1", image_sets)
  result = {}

  # more patterns could match at once
  # as we can't merge the meta image, only one can be selected
  possible_patterns = {}
  matching_patterns = {}
  patterns_in_imagesets = {}

  # ppc (covers also ppc64), i386, x86_64 ...
  arch_short = Arch.arch_short
  Builtins.y2milestone("Current architecture is: %1", arch_short)

  # filter out imagesets for another architecture
  image_sets = Builtins.filter(image_sets) do |image|
    imageset_archs = Builtins.splitstring(
      Ops.get_string(image, "archs", ""),
      " ,"
    )
    # no architecture defined == noarch
    next true if Builtins.size(imageset_archs) == 0
    # does architecture match?
    next true if Builtins.contains(imageset_archs, arch_short)

    # For debugging purpose
    Builtins.y2milestone(
      "Filtered-out, Patterns: %1, Archs: %2",
      Ops.get_string(image, "patterns", ""),
      Ops.get_string(image, "archs", "")
    )
    false
  end

  # trying to find all matching patterns
  Builtins.foreach(image_sets) do |image|
    pattern = image["patterns"]
    imageset_patterns = Builtins.splitstring(pattern, ", ")
    Ops.set(
      patterns_in_imagesets,
      pattern,
      Builtins.size(imageset_patterns)
    )
    # no image-pattern defined, matches all patterns
    if Builtins.size(imageset_patterns) == 0
      Ops.set(possible_patterns, pattern, image)
      # image-patterns matches to patterns got as parameter
    else
      Ops.set(
        matching_patterns,
        pattern,
        CountMatchingPatterns(imageset_patterns, patterns)
      )

      if Ops.greater_than(Ops.get(matching_patterns, pattern, 0), 0)
        Ops.set(possible_patterns, pattern, image)
      else
        # For debugging purpose
        Builtins.y2milestone(
          "Filtered-out, Patterns: %1, Matching: %2",
          Ops.get_string(image, "patterns", ""),
          Ops.get(matching_patterns, pattern, -1)
        )
      end
    end
  end

  log.info "Matching patterns: #{possible_patterns}, sizes: #{matching_patterns}"

  # selecting the best imageset
  last_pattern = ""

  if Ops.greater_than(Builtins.size(possible_patterns), 0)
    last_number_of_matching_patterns = -1
    last_pattern = ""

    Builtins.foreach(possible_patterns) do |pattern, image|
      if Ops.greater_than(
        Ops.get(
          # imageset matches more patterns than the currently best-one
          matching_patterns,
          pattern,
          0
        ),
        last_number_of_matching_patterns
      ) &&
          # enough patterns matches the selected imageset
          EnoughPatternsMatching(
            Ops.get(matching_patterns, pattern, 0),
            Ops.get(patterns_in_imagesets, pattern, 0)
          )
        last_number_of_matching_patterns = Ops.get(
          matching_patterns,
          pattern,
          0
        )
        result = deep_copy(image)
        last_pattern = pattern
      end
    end
  end

  Builtins.y2milestone("Result: %1/%2", last_pattern, result)
  @selected_images = result

  # No matching pattern
  if result == {}
    Installation.image_installation = false
    Installation.image_only = false
    Builtins.y2milestone("No image for installation found")
    return true
  end

  # We've selected one
  Installation.image_installation = true

  if Builtins.haskey(result, "pkg_image")
    @_metadata_image = Ops.get_string(result, "pkg_image", "")
  else
    Installation.image_only = true
  end

  # Adding images one by one into the pool
  Builtins.foreach(Ops.get_list(result, "images", [])) do |img|
    # image must have unique <file>...</file> defined
    if Ops.get(img, "file", "") == ""
      Builtins.y2error("No file defined for %1", img)
      next
    end
    @_image_order = Builtins.add(@_image_order, Ops.get(img, "file", ""))
    AddImage(
      Ops.get(img, "name", ""),
      Ops.get(img, "file", ""),
      Ops.get(img, "type", "")
    )
  end

  Builtins.y2milestone(
    "Image-only installation: %1",
    Installation.image_only
  )
  Builtins.y2milestone("Images: %1", @_images)
  Builtins.y2milestone("Image installation order: %1", @_image_order)

  if !Installation.image_only
    Builtins.y2milestone(
      "Image with software management metadata: %1",
      @_metadata_image
    )
  end

  true
end

#FreeInternalVariables ⇒ Object

<-- Storing and restoring states



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# File 'src/modules/ImageInstallation.rb', line 1444

def FreeInternalVariables
  @last_patterns_selected = []
  @_images = {}
  @_image_order = []
  @images_details = {}
  @_mounted_images = []
  @selected_images = {}

  nil
end

#GetCurrentImageDetails ⇒ Object 



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# File 'src/modules/ImageInstallation.rb', line 569

def GetCurrentImageDetails
  deep_copy(@_current_image)
end

#GetCurrentImages ⇒ Hash <String,Hash{String => Object>}

Returns list of currently selected images.

Structure:

$[
   "image_id":$[
     "file":filename,
     "type":type
   ], ...
 ]

Returns:

  • (Hash <String,Hash{String => Object>}) —

    images

See Also:



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# File 'src/modules/ImageInstallation.rb', line 187

def GetCurrentImages
  deep_copy(@_images)
end

#GetProgressLayoutDetails(id, details) ⇒ Object 



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# File 'src/modules/ImageInstallation.rb', line 1164

def GetProgressLayoutDetails(id, details)
  Ops.get_integer(@progress_layout, [id, details], 0)
end

#GetProgressLayoutLabel(id) ⇒ Object 



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# File 'src/modules/ImageInstallation.rb', line 1168

def GetProgressLayoutLabel(id)
  Ops.get_locale(@progress_layout, [id, "label"], _("Deploying..."))
end

#ImageOrder ⇒ Object

Order of images to be deployed

Returns:

  • a list of images definint the order



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# File 'src/modules/ImageInstallation.rb', line 169

def ImageOrder
  deep_copy(@_image_order)
end

#ImagesToUse ⇒ Hash

Returns map with description which images will be used

Structure:

$[
   "deploying_enabled" : boolean,
   "images" : returned by GetCurrentImages()
 ]

Returns:

  • (Hash) —

    with description

See Also:

  • #GetCurrentImages()


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# File 'src/modules/ImageInstallation.rb', line 993

def ImagesToUse
  ret = {}

  if Installation.image_installation == true
    ret = { "deploying_enabled" => true, "images" => GetCurrentImages() }
  else
    Ops.set(ret, "deploying_enabled", false)
  end

  deep_copy(ret)
end

#InitRepo ⇒ Object

Adjusts the repository for images



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# File 'src/modules/ImageInstallation.rb', line 159

def InitRepo
  return if !@_repo.nil?

  SetRepo(Ops.get(Packages.theSources, 0, 0))

  nil
end

#main ⇒ Object 



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# File 'src/modules/ImageInstallation.rb', line 43

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

  Yast.import "Installation"
  Yast.import "XML"
  Yast.import "Progress"
  Yast.import "Report"
  Yast.import "String"
  Yast.import "Arch"
  Yast.import "PackageCallbacks"
  Yast.import "Popup"
  Yast.import "SlideShow"
  Yast.import "ProductControl"
  Yast.import "ProductFeatures"
  Yast.import "Packages"
  Yast.import "PackagesUI"

  textdomain "installation"

  # Repository holding all images
  @_repo = nil

  # Description of all available images
  @_images = {}

  # Order of images
  @_image_order = []

  # Image with software management metadata
  @_metadata_image = ""

  # Template for the path for an image on the media
  @_image_path = "/images"

  # List of already mounted images
  @_mounted_images = []

  #
  # **Structure:**
  #
  #     $[
  #        "image_filaname" : $[
  #          // size of an unpacked image in bytes
  #          "size" : integer,
  #          // number of files and directories in an image
  #          "files" : integer,
  #        ]
  #      ]
  @images_details = {}

  # Image currently being deployed
  @_current_image = {}

  # display progress messages every NUMBERth record
  @_checkpoint = 400

  # NUMBER of bytes per record, multiple of 512
  @_record_size = 10_240

  @last_patterns_selected = []

  @changed_by_user = false

  # Defines whether some installation images are available
  @image_installation_available = nil

  @tar_image_progress = nil

  @download_image_progress = nil

  @start_download_handler = nil

  @generic_set_progress = nil

  @_current_image_from_imageset = -1

  # --> Storing and restoring states

  # List of all handled types.
  # list <symbol> all_supported_types = [`product, `pattern, `language, `package, `patch];
  # Zypp currently counts [ `product, `pattern, `language ]
  @all_supported_types = [:package, :patch]

  # Map that stores all the requested states of all handled/supported types.
  @objects_state = {}

  @progress_layout = {
    "storing_user_prefs"   => {
      "steps_start_at" => 0,
      "steps_reserved" => 6
    },
    "deploying_images"     => {
      "steps_start_at" => 6,
      "steps_reserved" => 84
    },
    "restoring_user_prefs" => {
      "steps_start_at" => 90,
      "steps_reserved" => 10
    }
  }

  # Images selected by FindImageSet()
  @selected_images = {}
end

#MountFsImage(id, target) ⇒ Boolean

Mount an image of the filesystem type Does not integrate to the system, mounts on target

Parameters:

  • id (String) —

    string the id of the image

  • target (String) —

    string the directory to deploy the image to

Returns:

  • (Boolean) —

    true on success



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# File 'src/modules/ImageInstallation.rb', line 490

def MountFsImage(id, target)
  InitRepo()

  file = Ops.get_string(@_images, [id, "file"], "")
  Builtins.y2milestone("Mounting image %1 (%2) on %3", id, file, target)
  file = Builtins.sformat("%1/%2", @_image_path, file)
  # BNC #409927
  # Checking files for signatures
  image = Pkg.SourceProvideDigestedFile(@_repo, 1, file, false)

  if image.nil?
    Builtins.y2error("File %1 not found on media", file)
    return false
  end
  cmd = Builtins.sformat("test -d %1 || mkdir -p %1", target)
  out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd))
  Builtins.y2milestone("Executing %1 returned %2", cmd, out)
  cmd = Builtins.sformat("mount -o noatime,loop %1 %2", image, target)
  out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd))
  Builtins.y2milestone("Executing %1 returned %2", cmd, out)
  Ops.get_integer(out, "exit", -1) == 0
  # FIXME: error checking
  # FIXME: unmounting
end

#PrepareOEMImage(path) ⇒ Object 



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# File 'src/modules/ImageInstallation.rb', line 774

def PrepareOEMImage(path)
  AddImage(
    "OEM", path, "raw"
  )
  @_image_order = [path]
end

#ProceedWithSelected(one_object, one_type) ⇒ Boolean

Returns whether the package should be additionally installed.

Returns:

  • (Boolean) —

    whether the package should be additionally installed



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# File 'src/modules/ImageInstallation.rb', line 1245

def ProceedWithSelected(one_object, one_type)
  # This package has been selected to be installed

  arch = Ops.get_string(one_object.value, "arch", "")
  # Query for all packages of the same version
  resolvable_properties = Y2Packager::Resolvable.find(
    kind:    one_type.value,
    name:    one_object.value.name,
    version: one_object.value.version,
    status:  :installed,
    arch:    arch
  )

  log.debug("Resolvables installed: #{resolvable_properties.map(&:name)}")

  ret = nil

  # There are some installed (matching the same arch, version, and name)
  if Ops.greater_than(Builtins.size(resolvable_properties), 0)
    Builtins.y2milestone(
      "Resolvable type: %1, name: %2 already installed",
      one_type.value,
      Ops.get_string(one_object.value, "name", "-x-")
    )
    # Let's keep the installed version
    Pkg.ResolvableNeutral(
      Ops.get_string(one_object.value, "name", "-x-"),
      one_type.value,
      true
    )
    # is already installed
    ret = false
    # They are not installed
  else
    Builtins.y2milestone(
      "Installing type: %1, details: %2,%3,%4",
      one_type.value,
      Ops.get_string(one_object.value, "name", ""),
      Ops.get_string(one_object.value, "arch", ""),
      Ops.get_string(one_object.value, "version", "")
    )
    # Confirm we want to install them (they might have been added as dependencies)
    Pkg.ResolvableInstallArchVersion(
      Ops.get_string(one_object.value, "name", ""),
      one_type.value,
      Ops.get_string(one_object.value, "arch", ""),
      Ops.get_string(one_object.value, "version", "")
    )
    # should be installed
    ret = true
  end

  ret
end

#RemoveTemporaryImage(image) ⇒ Object

Removes the downloaded image. If the file is writable, releases all sources because only libzypp knows which files are copies and which are just symlinks to sources (e.g., nfs://, smb://).



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# File 'src/modules/ImageInstallation.rb', line 208

def RemoveTemporaryImage(image)
  out = Convert.to_map(
    SCR.Execute(
      path(".target.bash_output"),
      Builtins.sformat(
        "test -w '%1' && echo -n writable",
        String.Quote(image)
      )
    )
  )

  # Command has either failed or file is writable (non-empty stdout)
  if Ops.get_integer(out, "exit", -1) != 0 ||
      Ops.get_string(out, "stdout", "") != ""
    Builtins.y2milestone("Releasing sources to remove temporary files")
    Pkg.SourceReleaseAll
  end

  nil
end

#RestoreAllChanges ⇒ Boolean

Restores packages statuses from 'objects_state': Selects packages for removal, installation and upgrade.

Returns:

  • (Boolean) —

    if successful



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# File 'src/modules/ImageInstallation.rb', line 1304

def RestoreAllChanges
  nr_steps = Ops.multiply(4, Builtins.size(@all_supported_types))
  id = "restoring_user_prefs"

  AdjustProgressLayout(id, nr_steps, _("Restoring user preferences..."))

  @generic_set_progress&.call(id, 0)

  Builtins.foreach(@all_supported_types) do |one_type|
    resolvable_properties = Y2Packager::Resolvable.find(kind: one_type)
    # All packages selected for installation
    # both `to-install and `to-upgrade (already) installed
    to_install = Builtins.filter(resolvable_properties) do |one_resolvable|
      one_resolvable.status == :selected
    end
    @generic_set_progress&.call(id, nil)
    # List of all packages selected for installation (just names)
    selected_for_installation_pkgnames = Builtins.maplist(
      Ops.get(@objects_state, [one_type, "install"], []), &:name
    )
    # All packages selected to be installed
    # [ $[ "arch" : ... , "name" : ... , "version" : ... ], ... ]
    selected_for_installation = Builtins.maplist(
      Ops.get(@objects_state, [one_type, "install"], [])
    ) do |one_resolvable|
      {
        "arch"    => one_resolvable.arch,
        "name"    => one_resolvable.name,
        "version" => one_resolvable.version
      }
    end
    @generic_set_progress&.call(id, nil)
    # Delete all packages that are installed but should not be
    one_already_installed_resolvable = {}
    Builtins.foreach(resolvable_properties) do |one_resolvable|
      # We are interested in the already installed resolvables only
      if one_resolvable.status != :installed &&
          one_resolvable.status != :selected
        next
      end

      one_already_installed_resolvable = {
        "arch"    => one_resolvable.arch,
        "name"    => one_resolvable.name,
        "version" => one_resolvable.version
      }
      # Already installed resolvable but not in list of resolvables to be installed
      if !Builtins.contains(
        selected_for_installation,
        one_already_installed_resolvable
      )
        # BNC #489448: Do not remove package which is installed in different version and/or arch
        # It will be upgraded later
        if Builtins.contains(
          selected_for_installation_pkgnames,
          one_resolvable.name
        )
          Builtins.y2milestone(
            "Not Removing type: %1, name: %2 version: %3",
            one_type,
            one_resolvable.name,
            one_resolvable.version
          )
          # Package is installed or selected but should not be, remove it
        else
          Builtins.y2milestone(
            "Removing type: %1, name: %2 version: %3",
            one_type,
            one_resolvable.name,
            one_resolvable.version
          )
          Pkg.ResolvableRemove(
            one_resolvable.name,
            one_type
          )
        end
      end
    end
    @generic_set_progress&.call(id, nil)
    # Install all packages that aren't yet
    Builtins.foreach(to_install) do |one_to_install|
      one_to_install_ref = arg_ref(one_to_install)
      one_type_ref = arg_ref(one_type)
      ProceedWithSelected(one_to_install_ref, one_type_ref)
      one_type = one_type_ref.value
    end
    @generic_set_progress&.call(id, nil)
  end

  # Free the memory
  @objects_state = {}

  # Return 'true' if YaST can solve deps. automatically
  if Pkg.PkgSolve(true) == true
    Builtins.y2milestone("Dependencies solved atomatically")
    return true
  end

  # Error message
  Report.Error(
    _(
      "Installation was unable to solve package dependencies automatically.\n" \
      "Software manager will be opened for you to solve them manually."
    )
  )

  ret = false

  # BNC #Trying to solve deps. manually
  loop do
    Builtins.y2warning(
      "Cannot solve dependencies automatically, opening Packages UI"
    )
    diaret = PackagesUI.RunPackageSelector(
      "enable_repo_mgr" => false, "mode" => :summaryMode
    )
    Builtins.y2milestone("RunPackageSelector returned %1", diaret)

    # User didn't solve the deps manually
    if diaret == :cancel
      ret = false
      if Popup.ConfirmAbort(:unusable)
        Builtins.y2warning("User abort...")
        break
      end
      # Aborting not confirmed, next round
      next
      # Solved! (somehow)
    else
      ret = true
      break
    end
  end

  Builtins.y2milestone("Dependencies solved: %1", ret)
  ret
end

#SetCurrentImageDetails(img) ⇒ Object 



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# File 'src/modules/ImageInstallation.rb', line 533

def SetCurrentImageDetails(img)
  img = deep_copy(img)
  @_current_image_from_imageset = Ops.add(@_current_image_from_imageset, 1)

  Builtins.y2warning("Images details are empty") if Builtins.size(@images_details) == 0

  @_current_image = {
    "file"         => Ops.get_string(img, "file", ""),
    "name"         => Ops.get_string(img, "name", ""),
    "size"         => Ops.get(
      @images_details,
      [Ops.get_string(img, "file", ""), "size"],
      0
    ),
    "files"        => Ops.get(
      @images_details,
      [Ops.get_string(img, "file", ""), "files"],
      0
    ),
    # 100% progress
    "max_progress" => Builtins.tointeger(
      Ops.divide(
        Ops.get(
          @images_details,
          [Ops.get_string(img, "file", ""), "size"],
          0
        ),
        @_record_size
      )
    ),
    "image_nr"     => @_current_image_from_imageset
  }

  nil
end

#SetDeployTarImageProgress(tip) ⇒ Object 



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# File 'src/modules/ImageInstallation.rb', line 229

def SetDeployTarImageProgress(tip)
  tip = deep_copy(tip)
  @tar_image_progress = deep_copy(tip)
  Builtins.y2milestone("New tar_image_progress: %1", @tar_image_progress)

  nil
end

#SetDownloadTarImageProgress(tip) ⇒ Object 



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# File 'src/modules/ImageInstallation.rb', line 237

def SetDownloadTarImageProgress(tip)
  tip = deep_copy(tip)
  @download_image_progress = deep_copy(tip)
  Builtins.y2milestone(
    "New download_image_progress: %1",
    @download_image_progress
  )

  nil
end

#SetOverallDeployingProgress(odp) ⇒ Object 



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# File 'src/modules/ImageInstallation.rb', line 260

def SetOverallDeployingProgress(odp)
  odp = deep_copy(odp)
  @generic_set_progress = deep_copy(odp)
  Builtins.y2milestone(
    "New generic_set_progress: %1",
    @generic_set_progress
  )

  nil
end

#SetRepo(repo) ⇒ Object

Set the repository to get images from

Parameters:

  • repo (Fixnum) —

    integer the repository identification



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# File 'src/modules/ImageInstallation.rb', line 151

def SetRepo(repo)
  @_repo = repo
  Builtins.y2milestone("New images repo: %1", @_repo)

  nil
end

#SetStartDownloadImageProgress(sdi) ⇒ Object

BNC #449792



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# File 'src/modules/ImageInstallation.rb', line 249

def SetStartDownloadImageProgress(sdi)
  sdi = deep_copy(sdi)
  @start_download_handler = deep_copy(sdi)
  Builtins.y2milestone(
    "New start_download_handler: %1",
    @start_download_handler
  )

  nil
end

#StoreAllChanges ⇒ Object

Function stores all new/requested states of all handled/supported types.

See Also:

  • #all_supported_types
  • #objects_state


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# File 'src/modules/ImageInstallation.rb', line 1188

def StoreAllChanges
  nr_steps = Ops.multiply(4, Builtins.size(@all_supported_types))
  id = "storing_user_prefs"

  AdjustProgressLayout(id, nr_steps, _("Storing user preferences..."))

  @generic_set_progress&.call(id, 0)

  # Query for changed state of all knwon types
  # 'changed' means that they were 'installed' and 'not locked' before
  Builtins.foreach(@all_supported_types) do |one_type|
    # list of $[ "name":string, "version":string, "arch":string, "source":integer,
    #            "status":symbol, "locked":boolean ]
    # status is `installed, `removed, `selected or `available, source is source ID or
    # -1 if the resolvable is installed in the target
    # if status is `available and locked is true then the object is set to taboo
    # if status is `installed and locked is true then the object locked
    resolvable_properties = Y2Packager::Resolvable.find(kind: one_type)
    Ops.set(@objects_state, one_type, {})
    remove_resolvables = Builtins.filter(resolvable_properties) do |one_object|
      one_object.status == :removed
    end
    Ops.set(@objects_state, [one_type, "remove"], remove_resolvables)
    @generic_set_progress&.call(id, nil)
    install_resolvables = Builtins.filter(resolvable_properties) do |one_object|
      one_object.status == :selected
    end
    Ops.set(@objects_state, [one_type, "install"], install_resolvables)
    @generic_set_progress&.call(id, nil)
    taboo_resolvables = Builtins.filter(resolvable_properties) do |one_object|
      one_object.status == :available &&
        one_object.locked
    end
    Ops.set(@objects_state, [one_type, "taboo"], taboo_resolvables)
    @generic_set_progress&.call(id, nil)
    lock_resolvables = Builtins.filter(resolvable_properties) do |one_object|
      one_object.status == :installed &&
        one_object.locked
    end
    Ops.set(@objects_state, [one_type, "lock"], lock_resolvables)
    @generic_set_progress&.call(id, nil)
  end

  # map <symbol, map <string, list <map> > > objects_state = $[];
  Builtins.foreach(@objects_state) do |object_type, objects_status|
    Builtins.foreach(objects_status) do |one_status, list_of_objects|
      log.debug(
        "Object type: #{object_type}, New status: #{one_status},"\
        "List of objects: #{list_of_objects}"
      )
    end
  end

  nil
end

#TotalSize ⇒ Object 



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# File 'src/modules/ImageInstallation.rb', line 515

def TotalSize
  sum = 0

  Builtins.y2milestone(
    "Computing total images size from [%1], data %2",
    @_image_order,
    @images_details
  )
  Builtins.foreach(@_image_order) do |image|
    # 128 MB as a fallback size
    # otherwise progress would not move at all
    sum = Ops.add(sum, Ops.get(@images_details, [image, "size"], 134_217_728))
  end

  Builtins.y2milestone("Total images size: %1", sum)
  sum
end