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35 строки
1.4 KiB
ReStructuredText
35 строки
1.4 KiB
ReStructuredText
Loading Tasks
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=============
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The full task graph generation involves creating tasks for each kind. Kinds
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are ordered to satisfy ``kind-dependencies``, and then the ``loader`` specified
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in ``kind.yml`` is used to load the tasks for that kind. It should point to
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a Python function like::
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def loader(cls, kind, path, config, parameters, loaded_tasks):
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pass
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The ``kind`` is the name of the kind; the configuration for that kind
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named this class.
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The ``path`` is the path to the configuration directory for the kind. This
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can be used to load extra data, templates, etc.
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The ``parameters`` give details on which to base the task generation. See
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:doc:`parameters` for details.
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At the time this method is called, all kinds on which this kind depends
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(that is, specified in the ``kind-dependencies`` key in ``config``)
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have already loaded their tasks, and those tasks are available in
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the list ``loaded_tasks``.
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The return value is a list of inputs to the transforms listed in the kind's
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``transforms`` property. The specific format for the input depends on the first
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transform - whatever it expects. The final transform should be
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``taskgraph.transform.task:transforms``, which produces the output format the
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task-graph generation infrastructure expects.
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The ``transforms`` key in ``kind.yml`` is further documented in
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:doc:`transforms`. For more information on how all of this works, consult the
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docstrings and comments in the source code itself.
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