Class: S3MetaSync::Syncer

Inherits:
Object
  • Object
show all
Defined in:
lib/s3_meta_sync/syncer.rb

Constant Summary collapse

DEFAULT_REGION = 
'us-east-1'

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ Syncer

Returns a new instance of Syncer.



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# File 'lib/s3_meta_sync/syncer.rb', line 22

def initialize(config)
  @config = config
end

Class Method Details

.swap_in_directory(destination, dir) ⇒ Object

almost atomic when destination and temp dir are not on the same device



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# File 'lib/s3_meta_sync/syncer.rb', line 93

def self.swap_in_directory(destination, dir)
  next_dir = "#{destination}-next"
  delete = "#{destination}-delete"

  # clean up potential leftovers from last run
  FileUtils.remove_dir(next_dir) if File.exist?(next_dir)
  FileUtils.remove_dir(delete) if File.exist?(delete)

  # move onto the same device
  FileUtils.mv(dir, next_dir)

  # copy permissions
  FileUtils.chmod_R(File.stat(destination).mode, next_dir)

  # swap
  FileUtils.mv(destination, delete)
  FileUtils.mv(next_dir, destination)

  # cleanup old
  FileUtils.remove_dir(delete)
end

Instance Method Details

#sync(source, destination) ⇒ Object 



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# File 'lib/s3_meta_sync/syncer.rb', line 26

def sync(source, destination)
  raise if source.end_with?("/") or destination.end_with?("/")

  if destination.include?(":")
    @bucket, destination = destination.split(":")
    upload(source, destination)
  else
    @bucket, source = source.split(":")
    download(source, destination)
  end
end