Class: Dbcp::Cli

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

Constant Summary collapse

DEFAULT_DESTINATION = 
'development'

Instance Method Summary collapse

Constructor Details

#initialize(stdout = $stdout) ⇒ Cli

Returns a new instance of Cli.



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# File 'lib/dbcp/cli.rb', line 5

def initialize(stdout = $stdout)
  @logger = Logger.new stdout
  @logger.formatter = Proc.new do |severity, datetime, progname, msg|
    "#{datetime}: #{msg}\n"
  end
end

Instance Method Details

#start(argv) ⇒ Object 



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# File 'lib/dbcp/cli.rb', line 12

def start(argv)
  if argv.length < 1
    usage
    exit 1
  end

  begin
    source = Environment.find(argv.shift)
    destination = Environment.find(argv.shift || DEFAULT_DESTINATION)

    if source == destination
      @logger.fatal "source and destination environments are the same"
      exit 3
    end

    if source.database.adapter != destination.database.adapter
      @logger.fatal "source (#{source.database.adapter}) and destination (#{destination.database.adapter}) environments must be the same database type"
      exit 4
    end
  rescue EnvironmentNotFound => e
    @logger.fatal e.to_s
    exit 2
  end

  @logger.info "exporting #{source.environment_name}..."
  source_snapshot_file = source.export

  @logger.info "transferring data..."
  destination_snapshot_file = source_snapshot_file.transfer_to(destination)

  @logger.info "importing #{destination_snapshot_file.path} to #{destination.environment_name}..."
  destination.import destination_snapshot_file

  source_snapshot_file.delete
  destination_snapshot_file.delete if source_snapshot_file != destination_snapshot_file
end

#usage ⇒ Object 



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# File 'lib/dbcp/cli.rb', line 49

def usage
  @logger.fatal "Usage: #{$0} source_environment [destination_environment || #{DEFAULT_DESTINATION}]"
end