Developer documentation¶
This page contains information for developers who wish to contribute to Bodhi.
Contribution guidelines¶
Before you submit a pull request to Bodhi, please ensure that it meets these criteria:
All tests must pass.
New code must have 100% test coverage. This one is particularly important, as we don’t want to deploy any broken code into production. After you’ve run
btest
, you can verify your new code’s test coverage withbdiff-cover
in the Vagrant environment, ordiff-cover coverage.xml --compare-branch=origin/develop --fail-under=100
if you are not using Vagrant.New functions, methods, and classes must have docblocks that explain what the code block is, and describing any parameters it accepts and what it returns (if anything). You can use the
pydocstyle
utility to automatically check your code for this.New code must follow PEP-8. You can use the
flake8
utility to automatically check your code.Add an entry to docs/user/release_notes.rst for any changes you make that should be in release notes.
Make sure your commits are atomic. Each commit should focus on one improvement or bug fix. If you need to build upon changes that are related but aren’t atomic, feel free to send more than one commit in the same pull request.
Your commit messages must include a Signed-off-by tag with your name and e-mail address, indicating that you agree to the Developer Certificate of Origin. Bodhi uses version 1.1 of the certificate, which reads:
Developer Certificate of Origin Version 1.1 Copyright (C) 2004, 2006 The Linux Foundation and its contributors. 1 Letterman Drive Suite D4700 San Francisco, CA, 94129 Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Developer's Certificate of Origin 1.1 By making a contribution to this project, I certify that: (a) The contribution was created in whole or in part by me and I have the right to submit it under the open source license indicated in the file; or (b) The contribution is based upon previous work that, to the best of my knowledge, is covered under an appropriate open source license and I have the right under that license to submit that work with modifications, whether created in whole or in part by me, under the same open source license (unless I am permitted to submit under a different license), as indicated in the file; or (c) The contribution was provided directly to me by some other person who certified (a), (b) or (c) and I have not modified it. (d) I understand and agree that this project and the contribution are public and that a record of the contribution (including all personal information I submit with it, including my sign-off) is maintained indefinitely and may be redistributed consistent with this project or the open source license(s) involved.
For example, Randy Barlow’s commit messages include this line:
Signed-off-by: Randy Barlow <randy@electronsweatshop.com>
Code may be submitted by opening a pull request at github.com/fedora-infra/bodhi, or you may e-mail a patch to the mailing list.
Easy Fix¶
If you are looking for some easy tasks to get started with Bodhi development, have a look at Bodhi’s EasyFix tickets.
CI Tests¶
All Bodhi pull requests are tested in a Jenkins instance
that is graciously hosted for us by the CentOS Project. Sometimes tests fail, and when they do you
can visit the test job that failed and view its console output. This will display the output from
the devel/ci/run_tests.sh
script. That script runs Bodhi’s test suite on a variety of
Fedora versions using containers.
It is possible for you to run these same tests locally. There is a devel/run_tests.sh
script
that is used by devel/ci/run_tests.sh
and does the heavy lifting. This script is intended to be
run as root since it uses docker
. It has a handy -x
flag that will cause it to exit
immediately upon failure. You can also set the RELEASES
environment variable to a list of Fedora
releases you wish to test in a given run. Thus, if I want to run the tests on only f26 and f27 and I
want it to exit immediately upon failure, I can execute the script like this:
# RELEASES="f26 f27" ./devel/run_tests.sh
The CI system does not halt immediately upon failure, so that you can see all the problems at once. Sometimes this makes it difficult to tell where the failure happened when looking at the console output on the CI server. Some common failures will print out “JENKIES FAIL” to help with this. If you browse to the console output on a job with failed tests, you can use your browser’s text search feature to find that string in the output to more quickly identify where the failure occurred.
Create a Bodhi development environment¶
There are two ways to bootstrap a Bodhi development environment. You can use Vagrant, or you can use virtualenv on an existing host. Vagrant allows contributors to get quickly up and running with a Bodhi development environment by automatically configuring a virtual machine. Virtualenv is a more manual option for building a development environment on an existing system. If you aren’t sure which development environment you would like to use, Vagrant is recommended as it get you a working system more quickly and with less effort. If you would like to use Vagrant, see the Bodhi Vagrant Guide. If you would like to use Virtualenv, see the Bodhi Virtualenv Guide.