Class: MySQLDBTool::Restore

Inherits:
Object
  • Object
show all
Defined in:
lib/mysql_db_tool/restore.rb

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Restore

Returns a new instance of Restore.



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# File 'lib/mysql_db_tool/restore.rb', line 7

def initialize(options = {})
  @options = options
  tableConfig = MySQLDBTool::Config::ConfigLoader.load(options[:env])
  @data_tables = tableConfig[:data_tables]
  @ignore_tables = tableConfig[:ignore_tables]
  @db_info = tableConfig[:db_info]

  @db_info[:database] = @options[:database] if @options[:database]
end

Instance Method Details

#perform ⇒ Object 



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# File 'lib/mysql_db_tool/restore.rb', line 17

def perform

  verify_tools_exist

  env=@options[:env] || "local"

  if env.downcase.end_with? "prod"
    abort "Aborted. Never restore production DB!"
  end

  id=@options[:id] || "0"
  isRun=@options[:run]
  isDropAllTables=@options[:drop_all_tables]

  puts "ARGV=#{ARGV}, env=#{env}, id=#{id}, run=#{isRun} isDropAllTables=#{isDropAllTables}"

  backupDir=backupDirName(id)

  puts "backupDir=#{backupDir}"
  databases = Array(@db_info[:database])

  databaseMap = {}
  sameDb = true

  Dir.entries(backupDir).reject {|f| File.directory? f}.sort.each do |f|

    index, origin_database = split_integer_and_string(f)
    database = get_element_or_last(databases, index)
    sameDb = sameDb && (database == origin_database)
    databaseMap["`#{origin_database}`\\."] = "`#{database}`."
  end

  gsubstring = sameDb ? "" : databaseMap.map { |k,v| ".gsub(/#{k}/, \"#{v}\")" }.join("")

  Dir.entries(backupDir).reject {|f| File.directory? f}.sort.flat_map do |f|

    commands = []

    index, origin_database = split_integer_and_string(f)
    database = get_element_or_last(databases, index)

    defaultOptions=mysqlDefaultOptions(@db_info, database)
    backupDir=backupDirName(id, f)

    commands.push("cat #{MySQLDBTool.find_resource('sql/drop_all_tables.sql')} | mysql #{defaultOptions}") if isDropAllTables
    commands.push("cat #{MySQLDBTool.find_resource('sql/drop_all_views.sql')} | mysql #{defaultOptions}") if isDropAllTables

    Dir.entries(backupDir).reject {|f| File.directory? f} .select {|f| f.include?("-schema.sql")} .each {|f|
      restore_each(commands, backupDir+"/"+f, defaultOptions, gsubstring)
    }
    Dir.entries(backupDir).reject {|f| File.directory? f} .reject {|f| f.include?("-schema.sql")} .each {|f|
      restore_each(commands, backupDir+"/"+f, defaultOptions, gsubstring)
    }
    commands
  end
end