Class: GDK::Backup

Inherits:
Object
  • Object
show all
Defined in:
lib/gdk/backup.rb

Constant Summary collapse

SourceFileOutsideOfGdk = 
Class.new(StandardError)
SourceFileDoesntExist = 
Class.new(StandardError)

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source_file) ⇒ Backup

Returns a new instance of Backup.



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# File 'lib/gdk/backup.rb', line 16

def initialize(source_file)
  @source_file = Pathname.new(source_file.to_s).expand_path

  validate!
end

Instance Attribute Details

#source_file ⇒ Object (readonly)

Returns the value of attribute source_file.



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# File 'lib/gdk/backup.rb', line 10

def source_file
  @source_file
end

Class Method Details

.backup_root ⇒ Object 



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# File 'lib/gdk/backup.rb', line 12

def self.backup_root
  GDK.root.join('.backups')
end

Instance Method Details

#backup!(advise: true) ⇒ Object 



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# File 'lib/gdk/backup.rb', line 22

def backup!(advise: true)
  ensure_backup_directory_exists
  make_backup_of_source_file
  advise_user if advise

  true
end

#destination_file ⇒ Object 



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# File 'lib/gdk/backup.rb', line 30

def destination_file
  @destination_file ||= backup_root.join("#{relative_source_file.to_s.gsub('/', '__')}.#{Time.now.strftime('%Y%m%d%H%M%S')}")
end

#recover_cmd_string ⇒ Object 



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# File 'lib/gdk/backup.rb', line 38

def recover_cmd_string
  <<~CMD
    cp -f '#{destination_file}' \\
    '#{source_file}'
  CMD
end

#relative_source_file ⇒ Object 



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# File 'lib/gdk/backup.rb', line 34

def relative_source_file
  @relative_source_file ||= source_file.relative_path_from(GDK.root)
end