Class: Backup::BackupScript

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(service) ⇒ BackupScript

Returns a new instance of BackupScript.



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# File 'lib/backup.rb', line 29

def initialize(service)
  @service_root = service
  @service_name = File.basename(service)
  @database     = @service_name.gsub(/[-\.]/, '_')
  @tempdir      = File.join("/tmp", @service_name)
  @tarball      = "#{@tempdir}.tar.bz2"
  @directories  = []
  @databases    = []
end

Class Method Details

.backup(name, &block) ⇒ Object 



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# File 'lib/backup.rb', line 13

def backup(name, &block)
  backup = self.new(name)
  backup.prepare
  backup.instance_eval(&block)
  backup.backup!
  backup.finish
end

.restore(name, &block) ⇒ Object 



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# File 'lib/backup.rb', line 21

def restore(name, &block)
  backup = self.new(name)
  backup.instance_eval(&block)
  backup.restore!
  backup.finish
end

Instance Method Details

#backup! ⇒ Object 



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# File 'lib/backup.rb', line 53

def backup!
  @directories.each do |filename|
    filename = File.join(@service_root, filename)
    backup_cmd "cp -r #{filename} #{@tempdir}/"
  end
  @databases.each do |database|
    backup_cmd "mysqldump -u#{db_user} #{"-p#{db_password}" if db_password != ''} #{database} > #{File.join(@tempdir, "#{database}.sql")}"
  end
  backup_cmd "tar -C /tmp -cjf #{@tarball} #{@service_name}"
  Net::FTP.open(ftp_host) do |ftp|
    ftp. ftp_user, ftp_password
    ftp.putbinaryfile @tarball
  end
end

#database(database = @database) ⇒ Object 



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# File 'lib/backup.rb', line 48

def database(database = @database)
  report :database, database
  @databases << database
end

#directory(filename) ⇒ Object 



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# File 'lib/backup.rb', line 43

def directory(filename)
  report :directory, filename
  @directories << filename
end

#finish ⇒ Object 



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# File 'lib/backup.rb', line 86

def finish
  backup_cmd "rm -rf #{@tempdir}"
  backup_cmd "rm #{@tarball}"
end

#prepare ⇒ Object 



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# File 'lib/backup.rb', line 39

def prepare
  backup_cmd "mkdir -p #{@tempdir}"
end

#restore! ⇒ Object 



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# File 'lib/backup.rb', line 68

def restore!
  inside "/tmp" do
    Net::FTP.open(ftp_host) do |ftp|
      ftp. ftp_user, ftp_password
      ftp.getbinaryfile File.basename(@tarball)
    end
  end
  backup_cmd "tar -C /tmp -xf #{@tarball}"
  @databases.each do |database|
    backup_cmd "mysql -u#{db_user} #{"-p#{db_password}" if db_password != ''} #{database} < #{File.join(@tempdir, "#{database}.sql")}"
  end
  @directories.each do |filename|
    source = File.join(@tempdir, filename)
    dest   = File.join(@service_root, filename)
    backup_cmd "cp -r #{source} #{dest}"
  end
end