See also
- @posttask in the Ruffus Manual
- Decorators for more decorators
@posttask¶
@posttask (function | touch_file(file_name))¶
- Purpose:
- Calls functions to signal the completion of each task
Example:
from ruffus import * def task_finished(): print "hooray" @posttask(task_finished) @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This may happen even if all of the jobs are up-to-date: when a upstream task is out-of-date, and the execution passes through this point in the pipeline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 * @posttask(touch_file("task_completed.flag")) @files(None, "a.1") def create_if_necessary(input_file, output_file): open(output_file, "w") pipeline_run([create_if_necessary])