Class: Yob::Database::Postgresql

Inherits:
Base
  • Object
show all
Defined in:
lib/yob/database.rb

Instance Attribute Summary

Attributes inherited from Base

#configuration

Instance Method Summary collapse

Constructor Details

#initialize(configuration) ⇒ Postgresql

Returns a new instance of Postgresql.



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# File 'lib/yob/database.rb', line 74

def initialize(configuration)
  super
  require 'archive/tar/minitar'
end

Instance Method Details

#full_backup ⇒ Object 



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# File 'lib/yob/database.rb', line 79

def full_backup
  require 'pg'

  connect_and_execute "SELECT pg_start_backup('yob')"

  begin
    writer = yield Time.now.strftime("%Y%m%d-%H%M%S#{random_filename_string}.tar.gpg"), nil
    tar = Archive::Tar::Minitar::Output.new(writer)
    begin
      Find.find(configuration.postgresql_data_directory) do |entry|
        Archive::Tar::Minitar.pack_file(entry, tar) unless entry.include?("/pg_xlog/")
      end
    ensure
      tar.close
    end
    writer.close
  ensure
    connect_and_execute "SELECT pg_stop_backup()"
  end
end

#partial_backup ⇒ Object 



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# File 'lib/yob/database.rb', line 100

def partial_backup
  raise "yob partial must be called with two more arguments - the full path and the destination filename - for a postgresql partial backup" unless ARGV.length == 3
  full_path = ARGV[1]
  destination_filename = ARGV[2]

  File.open(full_path, "r") do |file|
    yield "#{destination_filename}#{random_filename_string}", file
  end
end