Setup deployment

CHANGES/622.feature.1.rst

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+Added support Python 3.10

CHANGES/622.feature.2.rst

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+Started shipping platform-specific wheels with the ``musl`` tag targeting typical Alpine Linux runtimes.

CHANGES/622.feature.3.rst

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+Started shipping platform-specific wheels with the ``musl`` tag targeting typical Alpine Linux runtimes.Started shipping platform-specific arm64 wheels for Apple Silicon.

CHANGES/README.rst

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+.. _Adding change notes with your PRs:
+
+Adding change notes with your PRs
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+It is very important to maintain a log for news of how
+updating to the new version of the software will affect
+end-users. This is why we enforce collection of the change
+fragment files in pull requests as per `Towncrier philosophy`_.
+
+The idea is that when somebody makes a change, they must record
+the bits that would affect end-users only including information
+that would be useful to them. Then, when the maintainers publish
+a new release, they'll automatically use these records to compose
+a change log for the respective version. It is important to
+understand that including unnecessary low-level implementation
+related details generates noise that is not particularly useful
+to the end-users most of the time. And so such details should be
+recorded in the Git history rather than a changelog.
+
+Alright! So how to add a news fragment?
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+``multidict`` uses `towncrier <https://pypi.org/project/towncrier/>`_
+for changelog management.
+To submit a change note about your PR, add a text file into the
+``CHANGES/`` folder. It should contain an
+explanation of what applying this PR will change in the way
+end-users interact with the project. One sentence is usually
+enough but feel free to add as many details as you feel necessary
+for the users to understand what it means.
+
+**Use the past tense** for the text in your fragment because,
+combined with others, it will be a part of the "news digest"
+telling the readers **what changed** in a specific version of
+the library *since the previous version*. You should also use
+reStructuredText syntax for highlighting code (inline or block),
+linking parts of the docs or external sites.
+
+Finally, name your file following the convention that Towncrier
+understands: it should start with the number of an issue or a
+PR followed by a dot, then add a patch type, like ``feature``,
+``doc``, ``misc`` etc., and add ``.rst`` as a suffix. If you
+need to add more than one fragment, you may add an optional
+sequence number (delimited with another period) between the type
+and the suffix.
+
+In general the name will follow ``<pr_number>.<category>.rst`` pattern,
+where the categories are:
+
+- ``feature``: Any new feature
+- ``bugfix``: A bug fix
+- ``doc``: A change to the documentation
+- ``misc``: Changes internal to the repo like CI, test and build changes
+- ``removal``: For deprecations and removals of an existing feature or behavior
+
+A pull request may have more than one of these components, for example
+a code change may introduce a new feature that deprecates an old
+feature, in which case two fragments should be added. It is not
+necessary to make a separate documentation fragment for documentation
+changes accompanying the relevant code changes.
+
+Examples for adding changelog entries to your Pull Requests
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+File :file:`CHANGES/603.removal.1.rst`:
+
+.. code-block:: rst
+
+    Droped Python 3.5 support; Python 3.6 is the minimal supported Python version.
+
+File :file:`CHANGES/550.bugfix.rst`:
+
+.. code-block:: rst
+
+    Started shipping Windows wheels for the x86 architecture.
+
+File :file:`CHANGES/553.feature.rst`:
+
+.. code-block:: rst
+
+    Added support for ``GenericAliases`` (``MultiDict[str]``) under Python 3.9 and higher.
+
+
+.. _Towncrier philosophy:
+   https://towncrier.readthedocs.io/en/actual-freaking-docs/#philosophy

pyproject.toml

@@ -1,7 +1,16 @@
+[build-system]
+requires = ["setuptools>=40", "wheel"]
+
 [tool.towncrier]
 package = "yarl"
 filename = "CHANGES.rst"
 directory = "CHANGES/"
 title_format = "{version} ({project_date})"
-template = "CHANGES/.TEMPLATE.rst"
 issue_format = "`#{issue} <https://github.com/aio-libs/yarl/issues/{issue}>`_"
+
+
+[tool.cibuildwheel]
+test-requires = "-r requirements/ci.txt"
+test-command = "pytest {project}/tests"
+# don't build PyPy wheels, install from source instead
+skip = "pp*"