bin/rcs-db-demo
#!/usr/bin/env ruby
require 'fileutils'
require 'optparse'
module BackupManager
extend self
PATH = File.expand_path('../..', __FILE__)
DATAPATH = File.join(PATH, 'data')
BACKUPPATH = File.join(PATH, '_data_backup')
def without_mongo
list = %w[RCSMasterRouter RCSMasterConfig RCSShard]
list.each { |name| system("NET STOP #{name}"); sleep(2) }
puts "Copying files. Please wait."
yield
ensure
list.reverse.each { |name| system("NET START #{name}"); sleep(2) }
end
def backup(restore_point_name = nil)
bfolder = restore_point_name || Time.now.strftime('%Y%m%d_%H%M%S')
bfolder = File.join(BACKUPPATH, bfolder)
raise "Unable to backup. Folder #{bfolder} already exists." if Dir.exists?(bfolder)
FileUtils.mkdir(bfolder)
without_mongo do
FileUtils.cp_r(DATAPATH, bfolder)
puts "Removing mongod.lock"
FileUtils.rm(File.join(bfolder, 'data/mongod.lock'))
FileUtils.rm(File.join(bfolder, 'data/config/mongod.lock'))
end
end
def list
dir = Dir[File.join(BACKUPPATH, '*')]
puts "\n#{dir.size} restore points available:"
dir.each { |n| puts " - #{File.basename(n).ljust(30)} #{File.ctime(n)}" }
puts
end
def restore(folder)
folder = File.join(BACKUPPATH, folder, 'data')
raise "Cannot find folder #{folder}" unless Dir.exists?(folder)
without_mongo { FileUtils.rm_rf(DATAPATH); FileUtils.cp_r(folder, DATAPATH) }
end
def delete(folder)
folder = File.join(BACKUPPATH, folder)
raise "Cannot find folder #{folder}" unless Dir.exists?(folder)
FileUtils.rm_rf folder
end
def ensure_paths
raise "Cannot find folder #{DATAPATH}" unless Dir.exists?(DATAPATH)
FileUtils.mkdir(BACKUPPATH) unless Dir.exists?(BACKUPPATH)
end
end
options = {}
optparse = OptionParser.new do |opts|
opts.banner = "Usage: rcs-db-demo [options]"
opts.on( '-l', '--list', 'List available restore points') { options[:list] = true }
opts.on( '-b [RESTORE_POINT_NAME]', '--backup [RESTORE_POINT_NAME]', 'Backup "data" folder') { |name| options[:backup] = name || true }
opts.on( '-r RESTORE_POINT', '--restore RESTORE_POINT', String, 'Restore "data" folder') { |point| options[:restore] = point }
opts.on( '-d RESTORE_POINT', '--delete RESTORE_POINT', String, 'Delete a restore "data" folder') { |point| options[:delete] = point }
end
optparse.parse(ARGV)
BackupManager.ensure_paths
if options.empty?
puts "Use --help"
exit
end
if options[:list]
BackupManager.list
elsif options[:backup]
restore_point_name = options[:backup] == true ? nil : options[:backup]
BackupManager.backup(restore_point_name)
elsif options[:restore]
BackupManager.restore(options[:restore])
elsif options[:delete]
BackupManager.delete(options[:delete])
end