Class: DatedBackup

Inherits:
Object
  • Object
show all
Includes:
CommandLine
Defined in:
lib/dated_backup/command_line.rb,
lib/dated_backup/dated_backup.rb

Defined Under Namespace

Modules: CommandLine

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from CommandLine

#execute

Constructor Details

#initialize(h = {}) ⇒ DatedBackup

Returns a new instance of DatedBackup.



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# File 'lib/dated_backup/dated_backup.rb', line 9

def initialize(h={})
  @backup_root = h[:destination]
  @opts = h[:options] || ""
  @user_domain = h[:user_domain]
  @destination = generate_backup_filename
  
  @sources = h[:sources] || [h[:source]]
  
  if @user_domain
    @sources.map! { |src| "#{@user_domain}:#{src}" }
  end
  
end

Instance Attribute Details

#backup_root ⇒ Object

Returns the value of attribute backup_root.



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# File 'lib/dated_backup/dated_backup.rb', line 7

def backup_root
  @backup_root
end

#destination ⇒ Object

Returns the value of attribute destination.



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# File 'lib/dated_backup/dated_backup.rb', line 7

def destination
  @destination
end

#opts ⇒ Object

Returns the value of attribute opts.



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# File 'lib/dated_backup/dated_backup.rb', line 7

def opts
  @opts
end

#source ⇒ Object

Returns the value of attribute source.



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# File 'lib/dated_backup/dated_backup.rb', line 7

def source
  @source
end

#user_domain ⇒ Object

Returns the value of attribute user_domain.



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# File 'lib/dated_backup/dated_backup.rb', line 7

def user_domain
  @user_domain
end

Instance Method Details

#cp_last_backup_to_new_backup ⇒ Object 



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# File 'lib/dated_backup/dated_backup.rb', line 42

def cp_last_backup_to_new_backup
  last_backup_dir = find_last_backup_filename
  
  cmd = "cp -al #{last_backup_dir} #{@destination}"
  execute(cmd)
end

#create_backup ⇒ Object 



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# File 'lib/dated_backup/dated_backup.rb', line 34

def create_backup 
  @sources.each do |source|        
    cmd = "rsync -a --delete #{opts} #{source} #{@destination}"
    execute(cmd)
    puts "\n\n"
  end
end

#create_main_backup_directory ⇒ Object 



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# File 'lib/dated_backup/dated_backup.rb', line 49

def create_main_backup_directory
  begin
    unless File.exists? backup_root
      puts "* Creating main backup directory #{backup_root}"
      Dir.mkdir backup_root 
    end
  rescue Errno::EACCES => e
    puts "-- Exiting script because main directory could not be created. \n   Error Message: #{e}"
    exit
  end
end

#run ⇒ Object

create the first backup, if non-existent

otherwise cp -al (or # replace cp -al a b with cd a && find . -print | cpio -dpl ../b ) and then create the backup of the dirs using rsync -a –delete the files, in the end, should be read only and undeletable



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# File 'lib/dated_backup/dated_backup.rb', line 27

def run                               
  create_main_backup_directory                     
  cp_last_backup_to_new_backup unless Dir.glob("#{@backup_root}/*").empty?
  create_backup
  #set_permissions(dest)
end