Class: Rake::HDFSFileCreationTask

Inherits:
HDFSFileTask show all
Defined in:
lib/rake_hdfs/hdfs_file_creation_task.rb

Overview

A FileCreationTask is a file task that when used as a dependency will be needed if and only if the file has not been created. Once created, it is not re-triggered if any of its dependencies are newer, nor does trigger any rebuilds of tasks that depend on it whenever it is updated.

Instance Method Summary collapse

Methods inherited from HDFSFileTask

scope_name

Instance Method Details

#needed? ⇒ Boolean

Is this file task needed? Yes if it doesn’t exist.



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# File 'lib/rake_hdfs/hdfs_file_creation_task.rb', line 13

def needed?
  ! WebHDFS::FileUtils.exist?(name)
end

#timestamp ⇒ Object

Time stamp for file creation task. This time stamp is earlier than any other time stamp.



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# File 'lib/rake_hdfs/hdfs_file_creation_task.rb', line 19

def timestamp
  Rake::EARLY
end