What's the best way for troubleshooting why a task runs?

[sabbott....@gmail.com]

I have a task with:

        'targets': output_files,

        'task_dep': ['update_base_image_versions']

output_files is a list: 

[u'FinMason_VB_Base-0.2.1.box', u'FinMason_AMI_Base-0.2.1.box', 'output-virtualbox-ovf/finmason_base-disk1.vmdk', 'output-virtualbox-ovf/finmason_base.ovf']

When run with `doit pack_base_image`, the output shows:

-- update_base_image_versions

.  pack_base_image

Which means update_base_image_versions is uptodate.

All the files exist after a run.  But then if I run `doit pack_base_image` again, it runs again.

Will it ALWAYS run the task I call? Do I need to set a top level task that just doesn't care?  Why is that task running?  How do I troubleshoot the choice to run or not run a task?

Thanks!

[Jonas Wagner]

Hi,

A task dependency only specifies that one task should run after another. It doesn't influence whether or not a task is up-to-date. You need to add some targets to the task, or use another mechanism for that.

This (admittedly unintuitive) behavior is described here: http://pydoit.org/dependencies.html#task-dependency

Cheers,

Jonas

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