Purpose:
Calls functions to signal the completion of each task

Example:

from ruffus import *

print "hooray"

@files(None, "a.1")
def create_if_necessary(input_file, output_file):
open(output_file, "w")

pipeline_run([create_if_necessary])


Parameters:

• function:

function() will be called when the ruffus passes through a task.

This may happen even if all of the jobs are up-to-date: when a upstream task is out-of-date, and the execution passes through this point in the pipeline

• file_name

Files to be touch-ed after the task is executed.

This will change the date/time stamp of the file_name to the current date/time. If the file does not exist, an empty file will be created.

Requires to be wrapped in a touch_file indicator object:

from ruffus import *