.. _task-make-source-package-upload:

MakeSourcePackageUpload task
----------------------------

This worker task makes a ``debian:upload`` artifact from a
``debian:source-package`` artifact.  This involves unpacking the
source package and running ``dpkg-genchanges`` on it.

The ``task_data`` for this task may contain the following keys:

* ``input`` (required): a dictionary describing the input data:

  * ``source_artifact`` (:ref:`lookup-single`, required): a
    ``debian:source-package`` artifact

* ``since_version`` (string, optional): include changelog information
  from all versions strictly later than this version in the
  ``.changes`` file; the default is to include only the topmost
  changelog entry

* ``target_distribution`` (string, optional): override the target
  ``Distribution`` field in the ``.changes`` file to this value; the
  default is to use the distribution from the topmost changelog entry

* ``environment`` (:ref:`lookup-single` with default category
  ``debian:environments``, required): ``debian:system-tarball``
  artifact that will be used to run ``dpkg-source`` and
  ``dpkg-genchanges`` using the ``unshare`` backend.

The task computes dynamic metadata as:

.. dynamic_data::
  :method: debusine.tasks.makesourcepackageupload::MakeSourcePackageUpload.build_dynamic_data

The output is a ``debian:upload`` artifact, with ``extends`` and
``relates-to`` relationships to the input source package artifact (to
match the behaviour of ``debusine import-debian-artifact``).

Used by the :ref:`package_upload workflow <workflow-package-upload>`.