Class: Roebe::LiloConfigGenerator

Inherits:
Base show all
Defined in:
lib/roebe/classes/lilo_config_generator.rb

Overview

Roebe::LiloConfigGenerator

Constant Summary collapse

HDD_ENTRY =
#

HDD_ENTRY

#
'/dev/sda'
N_SECONDS_TIMEOUT =
#

N_SECONDS_TIMEOUT

#
'600'

Constants inherited from Base

Base::COLOURS, Base::HOME_DIRECTORY_OF_USER_X, Base::N, Base::NAMESPACE

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#actions, #append_this_onto_that_file, #append_what_into, #be_silent, #be_verbose?, #beautiful_url, #burlywood, #call_next, #chdir, #cheerful_guy, #complex_esystem, #convert_global_env, #copy_directory, #copy_file, #cornflowerblue, #create_directory, #crimson, #current_month?, #current_time?, #current_year?, #cyan, #darkcyan, #darkgreen, #darkkhaki, #darkslateblue, #deeppink, #delete_symlink, #do_not_use_the_base_colours, #do_use_the_base_colours, #e, #ecomment, #editor_to_use?, #efancy, #eimp, #emphasis, #ensure_main_encoding, #ensure_utf_encoding, #eparse, #erev, #esteelblue, #etomato, #ewarn, #exit_program, #firebrick, #get_current_day, #get_current_month, #get_files_and_directories, #get_files_from, #get_german_name_for_this_weekday, #gold, #green, #grey, #hh_mm_ss, #hh_mm_ss_day_month_year, #home_dir?, #home_directory_of_user_x?, #infer_the_namespace, #internal_hash?, #is_a_directory?, #is_a_file?, #is_a_jpg_file?, #is_an_image_file?, #is_archive?, #is_audio_file?, #is_in_studium_dir?, #is_multimedia_file?, #is_on_roebe?, #is_on_windows?, #is_studium_available?, #is_symlink?, #is_this_a_ruby_file?, #is_video_file?, #iso_encoding?, #le, #left_colour, #lightblue, #lightgreen, #lightseagreen, #lightsteelblue, #lime, #limegreen, #localhost_to_data, #log_directory?, #main_encoding?, #mediumorchid, #mediumpurple, #mediumseagreen, #mediumslateblue, #mediumspringgreen, #mediumturquoise, #mkdir_p, #mv, #n_days_in_this_month, #n_pages_in_this_pdf_file?, #namespace?, #no_file_exists_at, #ogrey, #olive, #olivedrab, #open_in_browser, #opne, #opnesystem, #opnn, #orange, #orchid, #orev, #palegoldenrod, #palevioletred, #pink, #powderblue, #programs_dir?, #project_base_dir?, #random_html_colour, #rds, #read_file_in_iso_encoding, #read_file_via_the_default_encoding, #read_lines_via_iso_encoding, #readlines_with_main_encoding, #red, #register_sigint, #remove, #remove_directory, #remove_file, #rename_kde_konsole_tab, #replace_localhost_with_data, #report_pwd, #require_rescue, #reset_the_internal_hash, #return_all_directories_from_this_directory, #return_all_files_from_this_directory, #return_current_directory, #return_dd_mm_yyyy, #return_file_or_directory_of, #return_files_from_pwd, #return_last_part_of_the_current_directory, #return_utc, #rev, #right_arrow?, #right_colour, #roebe_log_directory?, #rosybrown, #royalblue, #ruby_base_directory?, #run_in_background, #run_rcfiles_then_run_ata_via_qdbus, #sandybrown, #sdir, #seagreen, #set_be_verbose, #set_xorg_buffer, #sfancy, #sfile, #silent_redirection?, #simp, #simple_esystem, #skyblue, #slateblue, #slategray, #springgreen, #steelblue, #string_italic, #swarn, #symlink, #teal, #temp_dir?, #to_camelcase, #to_counted_hash, #tomato, #touch, #try_to_require_the_beautiful_url_gem, #try_to_require_the_html_template, #try_to_require_the_open_gem, #try_to_require_the_program_information_gem, #try_to_require_the_xorg_buffer, #use_colours?, #verbose_truth, #weekday?, #word_wrap, #write_what_into, #yellow

Methods included from Base::CommandlineArguments

#append_onto_the_commandline_arguments, #clear_commandline_arguments, #commandline_arguments?, #commandline_arguments_as_string?, #commandline_arguments_without_leading_hyphens?, #first_argument?, #first_argument_without_leading_hyphens?, #has_an_argument_been_passed?, #remove_hyphened_arguments_from_the_commandline_arguments, #return_commandline_arguments_with_leading_hyphens, #second_argument?

Constructor Details

#initialize(i = ARGV, run_already = true) ⇒ LiloConfigGenerator

#

initialize

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 45

def initialize(
    i           = ARGV,
    run_already = true
  )
  reset
  set_commandline_arguments(i)
  run if run_already
end

Class Method Details

.[](i = '') ⇒ Object

#

Roebe::LiloConfigGenerator[]

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 395

def self.[](i = '')
  new(i)
end

Instance Method Details

#add(i = N) ⇒ Object

#

add (add tag)

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 131

def add(i = N)
  i = i.dup if i.frozen?
  i << N unless i.end_with? N
  if i.start_with? '#'
    i.prepend('  ') # Pad with '  ' for now.
  end
  @_ << i
end

#add_boot_area ⇒ Object

#

add_boot_area

Instructs LILO to be installed on the first hard disk of the first IDE controller or sd-device.

This is equivalent to the MBR, so no trailing numbers here.

When LILO is installed into the MBR, it will control the boot-up process.

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 151

def add_boot_area
  add "boot=#{HDD_ENTRY}"
end

#add_compact ⇒ Object

#

add_compact

Note that the “compact” setting makes LILO read the hard drive faster. Normally you want this, but some older systems may hang. Remove it if yours is one of these.

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 232

def add_compact
  add 'compact'
end

#add_default_bitmap ⇒ Object

#

add_default_bitmap

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 310

def add_default_bitmap
  _ = '/boot/slack.bmp'
  if File.exist? _
    add "bitmap = #{_}"
  else
    opnn; no_file_exists_at(_)
  end
end

#add_default_menu_colours ⇒ Object

#

add_default_menu_colours

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 111

def add_default_menu_colours
  cliner
  add '# Menu colors (foreground, background, shadow, highlighted'                                                                                                                  
  add '# foreground, highlighted background, highlighted shadow):'                                                                                                                   
  cliner
  add 'bmp-colors = 255,0,255,0,255,0'
end

#add_map_file ⇒ Object

#

add_map_file

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 221

def add_map_file
  add 'map=/boot/map'
end

#add_option_table ⇒ Object

#

add_option_table

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 104

def add_option_table
  add 'bmp-table = 60,6,1,16'
end

#add_prompt ⇒ Object

#

add_prompt

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 207

def add_prompt
  add 'prompt'
end

#add_this_bootable_partition_subsection(use_this_kernel = '/boot/vmlinuz-huge-4.4.14', use_this_as_label = 'Linux_1') ⇒ Object

#

add_this_bootable_partition_subsection

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 239

def add_this_bootable_partition_subsection(
    use_this_kernel   = '/boot/vmlinuz-huge-4.4.14',
    use_this_as_label = 'Linux_1'
  )
  if use_this_as_label.frozen?
    use_this_as_label = use_this_as_label.dup
  end
  target_file = use_this_kernel.dup
  if File.exist? target_file
    cliner
    add '# Linux bootable partition config:'
    cliner
    add 'image = '+target_file
    # ===================================================================== #
    # root=/dev/sda1 specifies which disk partition to use as the
    # root partition.
    # ===================================================================== #
    add '  root = '+@use_this_as_the_main_device
    if use_this_kernel.include? '-huge-'
      use_this_as_label << '-huge'
    elsif use_this_kernel.include? '-generic-'
      use_this_as_label << '-generic'
    end
    add '  label = '+use_this_as_label
    # ===================================================================== #
    # read-only specifies that the root partition is read-only and cannot
    # be altered during the boot process. 
    # ===================================================================== #
    add '  read-only'
    n
  else
    opnn; no_file_exists_at(target_file)
  end
end

#add_timeout ⇒ Object

#

add_timeout

timout will set the amount of time that LILO waits for user input, before proceeding with booting the default line entry. 50 is the default and means 5 seconds (divide by 10).

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 190

def add_timeout
  cliner
  add '# This is given in tenths of a second, so 600 for every minute:'
  cliner
  add "timeout = #{N_SECONDS_TIMEOUT}"
end

#cliner ⇒ Object

#

cliner

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 158

def cliner
  add '# '+('='*74)+' #'
end

#consider_running_lilo_at_once ⇒ Object

#

consider_running_lilo_at_once

This method will run “lilo” at once, if we are on a roebe-system.

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 369

def consider_running_lilo_at_once
  if is_on_roebe?
    esystem 'lilo'
  end
end

#determine_the_available_boot_devices_automatically ⇒ Object

#

determine_the_available_boot_devices_automatically

This method can be used to

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 380

def determine_the_available_boot_devices_automatically
  possible_matches = Dir['/boot/vmlinuz-*'].reject {|entry| File.symlink? entry }
  possible_matches.each {|this_vmlinuz_file|
    version = this_vmlinuz_file.scan(/(\d{0,2}\.\d{0,2}\.\d{0,2})/).flatten.compact
    version = version.first if version.is_a? Array
    add_this_bootable_partition_subsection(
      this_vmlinuz_file,
      "linux-#{version}"
    )
  }
end

#main_string? ⇒ Boolean

#

main_string?

#

Returns:

  • (Boolean) 


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 200

def main_string?
  @_
end

#menu(i) ⇒ Object

#

menu (menu tag)

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 277

def menu(i)
  if i.is_a? Array
    i.each {|entry| menu(entry) }
  else
    case i # case tag
    # ===================================================================== #
    # === liloconfig --help
    # ===================================================================== #
    when /^-?-?help$/i,
         /^-?-?show(_|-)?help$/i
      show_help
      exit
    # ===================================================================== #
    # === liloconfig --entry=/dev/sda2
    # ===================================================================== #
    when /^-?-?entry=(.+)$/i
      set_use_this_entry($1.to_s.dup)
    end
  end
end

#n ⇒ Object

#

n

Add a newline to the config file.

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 124

def n
  add N
end

#override_dangerous_defaults ⇒ Object

#

override_dangerous_defaults

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 175

def override_dangerous_defaults
  cliner
  add '# Override dangerous defaults that rewrite the partition table:'
  cliner
  add 'change-rules'
  add '  reset'
end

#parse_commandline_arguments ⇒ Object

#

parse_commandline_arguments

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 93

def parse_commandline_arguments
  if @commandline_arguments.any? {|entry| entry.start_with? '--' }
    selection = @commandline_arguments.select {|entry| entry.start_with? '--' }
    menu(selection)
    @commandline_arguments.reject! {|entry| entry.start_with? '--' }
  end
end

#reset ⇒ Object

#

reset (reset tag)

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 57

def reset
  super()
  infer_the_namespace
  # ======================================================================= #
  # === @_
  # ======================================================================= #
  @_ = ''.dup # We dump everything onto that variable.
  # ======================================================================= #
  # === @use_this_as_the_main_device
  #
  # This is the main device - currently hardcoded.
  # ======================================================================= #
  @use_this_as_the_main_device = '/dev/sda1'
end

#run ⇒ Object

#

run (run tag)

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 335

def run
  opne 'This class will next generate a (default) lilo config file.'
  add_boot_area
  n
  add_map_file
  n
  add_default_bitmap
  n
  add_default_menu_colours
  n
  add_option_table
  n
  add_compact
  n
  add_prompt
  n
  add_timeout
  n
  override_dangerous_defaults
  n
  use_normal_vga_console
  n
  determine_the_available_boot_devices_automatically
  e
  show_main_string
  save_into_lilo_conf_file
  consider_running_lilo_at_once
end

#save_into_lilo_conf_file ⇒ Object

#

save_into_lilo_conf_file

Note that by default we will generate into the current working directory.

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 325

def save_into_lilo_conf_file
  what = main_string?
  into = '/etc/lilo.conf'
  opne 'Storing the above into the file `'+sfile(into)+'`.'
  write_what_into(what, into)
end

#set_commandline_arguments(i = '') ⇒ Object

#

set_commandline_arguments

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 84

def set_commandline_arguments(i = '')
  i = [i].flatten.compact
  @commandline_arguments = i
  parse_commandline_arguments
end

#set_use_this_as_the_main_device(i) ⇒ Object Also known as: set_use_this_entry

#

set_use_this_as_the_main_device

Specify using another main device entry here.

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 77

def set_use_this_as_the_main_device(i)
  @use_this_as_the_main_device = i
end

#show_help ⇒ Object

#

show_help (help tag)

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 301

def show_help
  e
  e "  liloconfig --entry=/dev/sda2 # specify to use another main entry"
  e
end

#show_main_string ⇒ Object Also known as: report

#

show_main_string

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 214

def show_main_string
  e @_
end

#use_normal_vga_console ⇒ Object

#

use_normal_vga_console

#


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# File 'lib/roebe/classes/lilo_config_generator.rb', line 165

def use_normal_vga_console
  cliner
  add '# Normal VGA console'
  cliner
  add 'vga = normal'
end