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devpi-jenkins: Jenkins build trigger for devpi-server

Project description

devpi-jenkins: Jenkins build trigger for devpi-server
=====================================================

For use with devpi-server >= 2.2.0.

Installation
------------

``devpi-jenkins`` needs to be installed alongside ``devpi-server``.

You can install it with::

pip install devpi-jenkins

For ``devpi-server`` there is no configuration needed, as it will automatically discover the plugin through calling hooks using the setuptools entry points mechanism.

Details about configuration below.

Configuration
-------------

devpi-jenkins can trigger Jenkins to test uploaded packages using tox_.
This needs configuration on two sides:

- devpi: configuring an index to send POST requests to Jenkins upon upload

- Jenkins: adding one or more jobs which can get triggered by devpi-jenkins.

Configuring a devpi index to trigger Jenkins
++++++++++++++++++++++++++++++++++++++++++++

Here is a example command, using a ``/testuser/dev`` index
and a Jenkins server at http://localhost:8080::

# needs one Jenkins job for each name of uploaded packages
devpi index /testuser/dev uploadtrigger_jenkins=http://localhost:8080/job/{pkgname}/build

Any package which gets uploaded to ``/testuser/dev`` will now trigger
a POST request to the specified url. The ``{pkgname}`` and
``{pkgversion}`` strings will be substituted with the name of the
uploaded package. You don't need to specify such substitutions,
however, if you rather want to have one generic Jenkins job which
executes all tests for all your uploads::

# one generic job for all uploaded packages
devpi index /testuser/dev uploadtrigger_jenkins=http://localhost:8080/job/multijob/build

This requires a single ``multijob`` on the Jenkins side whereas the prior
configuration would require a job for each package name that you possibly
upload.

Note that uploading a package will succeed independently if a build job could
be submitted successfully to Jenkins.

Configuring Jenkins job(s)
++++++++++++++++++++++++++

On the Jenkins side, you need to configure one or more jobs which can
be triggered by devpi-jenkins. Each job is configured in the same way:

- go to main Jenkins screen

- hit "New Job" and enter a name ("multijob" if you want to configure
a generic job), then select "freey style software project", hit OK.

.. image:: jenkins1.png
:align: center

- enable "This build is parametrized" and add a "File Parameter",
setting the file location to ``jobscript.py``.

.. image:: jenkins2.png
:align: center

- add a buildstep "Execute Python script" (you need to have the Python
plugin installed and enabled in Jenkins) and enter
``execfile("jobscript.py")``.

.. image:: jenkins3.png
:align: center

- hit "Save" for the new build job.

You can now ``devpi upload`` a package to an index and see Jenkins starting
after the upload successfully returns.

Behind the scenes
+++++++++++++++++

Once you triggered a job from devpi, you can checkout the ``jobscript.py``
in the Jenkins workspace to see what was injected. The injected
script roughly follows these steps:

- retrieves a stable virtualenv release through the devpi root/pypi
index (i.e. use its caching ability)

- unpack the virtualenv tar ball and run the contained "virtualenv.py"
script to create a ``_devpi`` environment

- install/upgrade ``devpi-client`` into that environment

- ``devpi use`` the index which we were triggered from

- ``devpi test PKG`` where PKG is the package name that we uploaded.

Uploading Sphinx docs
---------------------

If you have `Sphinx-based documentation <http://sphinx-doc.org/>`_ you can
upload the rendered HTML documentation to your devpi server with the following
command::

devpi upload --with-docs

This will build and upload Sphinx documentation by configuring and running
this command::

setup.py build_sphinx -E --build-dir $BUILD_DIR \
upload_docs --upload-dir $BUILD_DIR/html

If you have distutils configured to use a devpi index you can upload
documentation to that index simply by executing::

python setup.py upload_docs

Once uploaded the documentation will be linked to from the index overview page.
Documentation URLs have the following form::

http://$DEVPI_URL/$USER/$INDEX/$PACKAGE/$VERSION/+doc/index.html

The ``devpi upload --with-docs`` command may fail with the following error::

error: invalid command 'build_sphinx'

This probably means you're using an old version of setuptools that doesn't
support the `build_sphinx` command used by devpi, so you need to update
setuptools::

pip install -U setuptools

If the ``devpi upload --with-docs`` command still fails with the same error
message, maybe you forgot to install Sphinx? In that case::

pip install sphinx

Bulk uploading release files
----------------------------

If you have a directory with existing package files::

devpi upload --from-dir PATH/TO/DIR

will recursively collect all archives files, register
and upload them to our local ``testuser/dev`` pypi index.

.. _`configure pypirc`:

Using plain ``setup.py`` for uploading
--------------------------------------

In order for ``setup.py`` to register releases and upload
release files we need to configure our index server in
the ``$HOME/.pypirc`` file::

# content of $HOME/.pypirc
[distutils]
index-servers = ... # any other index servers you have
dev

[dev]
repository: http://localhost:3141/testuser/dev/
username: testuser
password: <YOURPASSWORD>

Now let's go to one of your ``setup.py`` based projects and issue::

python setup.py sdist upload -r dev

This will upload your ``sdist`` package to the ``testuser/dev`` index,
configured in the ``.pypirc`` file.

If you now use ``testuser/dev`` for installation like this::

pip install -i http://localhost:3141/testuser/dev/+simple/ PKGNAME

You will install your package including any pypi-dependencies
it might need, because the ``testuser/dev`` index inherits all
packages from the pypi-mirroring ``root/pypi`` index.

.. note::

If working with multiple indices, it is usually more
convenient to use :ref:`devpi upload`.


Changelog
=========

1.0.1 - Unreleased
------------------



1.0.0 - 2015-05-13
------------------

- include version in testspec for ``devpi test`` command
[fschulze]

- separated into plugin from devpi-server
[fschulze (Florian Schulze)]

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