Class: Yast::SystemFilesCopyClass

Inherits:
Module
  • Object
show all
Defined in:
src/modules/SystemFilesCopy.rb

Instance Method Summary collapse

Instance Method Details

#AdjustDirectoryPath(directory_path) ⇒ Object

internal functions for SaveInstSysContent -->


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# File 'src/modules/SystemFilesCopy.rb', line 107

def AdjustDirectoryPath(directory_path)
  dir_path_list = Builtins.splitstring(directory_path, "/")

  dir_path_list = Builtins.filter(dir_path_list) { |one_dir| one_dir != "" }

  directory_path = Builtins.mergestring(dir_path_list, "/")
  Builtins.sformat("/%1/", directory_path)
end

#CopyFilesFromDirToDir(dir_from, dir_to) ⇒ Object


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# File 'src/modules/SystemFilesCopy.rb', line 116

def CopyFilesFromDirToDir(dir_from, dir_to)
  cmd = Builtins.sformat(
    "mkdir -p '%2' && cp -ar '%1.' '%2'",
    String.Quote(dir_from),
    String.Quote(dir_to)
  )
  cmd_run = Convert.to_map(WFM.Execute(path(".local.bash_output"), cmd))

  if Ops.get_integer(cmd_run, "exit", -1) == 0
    Builtins.y2milestone("Command >%1< succeeded", cmd)
    true
  else
    Builtins.y2error("Command %1 failed %2", cmd, cmd_run)
    false
  end
end

#CreateDirectoryIfMissing(create_directory) ⇒ Object

Checks whether the directory exists and creates it if it is missing If the path exists but it is not a directory, it tries to create another directory and returns its name. 'nil' is returned when everythig fails.

Parameters:

  • create_directory (String)

    directory to create


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# File 'src/modules/SystemFilesCopy.rb', line 57

def CreateDirectoryIfMissing(create_directory)
  # path already exists
  if FileUtils.Exists(create_directory)
    # exists as a directory
    if FileUtils.IsDirectory(create_directory)
      Builtins.y2milestone("Directory %1 already exists", create_directory)
      create_directory
      # exists but it's not a directory
    else
      Builtins.y2warning("Path %1 is not a directory", create_directory)
      new_dir = nil

      while new_dir.nil? && Ops.greater_than(@counter_max, 0)
        @counter_max = Ops.subtract(@counter_max, 1)
        create_directory = Ops.add(create_directory, "x")
        new_dir = CreateDirectoryIfMissing(create_directory)
      end

      new_dir
    end

    # path doesn't exist
  else
    SCR.Execute(path(".target.mkdir"), create_directory)
    # created successfully
    if FileUtils.Exists(create_directory)
      Builtins.y2milestone("Directory %1 created", create_directory)
      create_directory
      # cannot create
    else
      Builtins.y2error("Cannot create path %1", create_directory)
      nil
    end
  end
end

#InitializeObject

Sets and creates a temporary directory for files to lay in inst-sys until they're copied to the installed system. Sets and creates a temporary directory that is used for mounting partitions when copying files from them.


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# File 'src/modules/SystemFilesCopy.rb', line 97

def Initialize
  return true if @already_initialized

  # everything is fine
  @already_initialized = true
  true
end

#mainObject


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# File 'src/modules/SystemFilesCopy.rb', line 33

def main
  textdomain "installation"

  Yast.import "Directory"
  Yast.import "FileUtils"
  Yast.import "String"
  Yast.import "Installation"
  Yast.import "ProductFeatures"
  Yast.import "Stage"
  Yast.import "InstData"

  # --> Variables

  @already_initialized = false

  # max tries when creating a temporary mount-directory
  @counter_max = 10
end

#SaveInstSysContentObject

Function reads from control file and copies all content from inst-sys to the just installed system.

This function needs to be called in the inst-sys (first stage) just before the disk is unmounted.

FATE #301937

Structure:

 <globals>
     <save_instsys_content config:type="list">
         <save_instsys_item>
             <instsys_directory>/root/</instsys_directory>
             <system_directory>/root/inst-sys/</system_directory>
         </save_instsys_item>
     </save_instsys_content>
 </globals>

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# File 'src/modules/SystemFilesCopy.rb', line 156

def SaveInstSysContent
  if !Stage.initial
    Builtins.y2error(
      "This function can be called in the initial stage only!"
    )
    return false
  end

  globals_features = ProductFeatures.GetSection("globals")

  if globals_features.nil?
    Builtins.y2warning("No <globals> defined")
    return false
  elsif Ops.get_list(globals_features, "save_instsys_content", []) == []
    Builtins.y2milestone("No items to copy from inst-sys")
    return true
  end

  save_content = Convert.convert(
    Ops.get(globals_features, "save_instsys_content"),
    from: "any",
    to:   "list <map <string, string>>"
  )
  if save_content.nil?
    Builtins.y2error(
      "Cannot save inst-sys content: %1",
      Ops.get(globals_features, "save_instsys_content")
    )
    return false
  end

  Builtins.y2milestone("Save inst-sys content: %1", save_content)
  Builtins.foreach(save_content) do |copy_item|
    if Ops.get(copy_item, "instsys_directory", "") == ""
      Builtins.y2error("Error: %1 is not defined", "instsys_directory")
      next
    elsif Ops.get(copy_item, "system_directory", "") == ""
      Builtins.y2error("Error: %1 is not defined", "system_directory")
      next
    end
    dir_from = Builtins.sformat(
      "/%1/",
      Ops.get(copy_item, "instsys_directory", "")
    )
    dir_to = Builtins.sformat(
      "/%1/%2/",
      Installation.destdir,
      Ops.get(copy_item, "system_directory", "")
    )
    dir_from = AdjustDirectoryPath(dir_from)
    dir_to = AdjustDirectoryPath(dir_to)
    if dir_from == dir_to
      Builtins.y2error(
        "Dir 'from (%1)' and 'to (%2)' mustn't be the same",
        dir_from,
        dir_to
      )
      next
    end
    # search ("/a", "/b") -> nil
    # search ("/a/b", "/a") -> 0
    # search ("/a/b/", "/b/") -> 2
    position_str_in_str = Builtins.search(dir_to, dir_from)
    if !position_str_in_str.nil? && position_str_in_str == 0
      Builtins.y2error(
        "Cannot copy a directory content to itself (%1 -> %2)",
        dir_from,
        dir_to
      )
      next
    end
    CopyFilesFromDirToDir(dir_from, dir_to)
  end

  true
end