Contributing
############
.. _how-to-contribute:
How to contribute
=================
You would like to contribute? First, thanks a bunch! This project is a small
project with just a few people behind it, so any help is appreciated!
There are different ways to help us, regarding if you are a designer,
a developer or an user.
As a developer
--------------
If you want to contribute code, you can write it and then issue a pull request
on github. To get started, please read :ref:`setup-dev-environment` and
:ref:`contributing-developer`.
As a designer / Front-end developer
-----------------------------------
Feel free to provide mockups, or to involve yourself in the discussions
happening on the GitHub issue tracker. All ideas are welcome. Of course, if you
know how to implement them, feel free to fork and make a pull request.
As a translator
---------------
If you're able to translate Ihatemoney in your own language,
head over to `the website we use for translations `_
and start translating.
All the heavy lifting will be done automatically, and your strings will
eventually be integrated.
Once a language is ready to be integrated, add it to the
``SUPPORTED_LANGUAGES`` list, in ``ihatemoney/default_settings.py``.
End-user
--------
You are using the application and found a bug? You have some ideas about how to
improve the project? Please tell us `by filling a new issue `_.
Or, if you prefer, you can send me an e-mail to `alexis@notmyidea.org` and I
will update the issue tracker with your feedback.
Thanks again!
.. _setup-dev-environment:
Set up a dev environment
========================
You must develop on top of the Git master branch::
git clone https://github.com/spiral-project/ihatemoney.git
Then you need to build your dev environment. Choose your way…
The quick way
-------------
If System :ref:`installation-requirements` are fulfilled, you can just issue::
make serve
It will setup a `Virtual environment `_,
install dependencies, and run the test server.
The hard way
------------
Alternatively, you can use pip to install dependencies yourself. That would be::
pip install -e .
And then run the application::
cd ihatemoney
python run.py
The docker way
--------------
If you prefer to use docker, then you can build your image with::
docker build -t ihatemoney .
Accessing dev server
--------------------
In any case, you can point your browser at `http://localhost:5000 `_.
It's as simple as that!
Updating
--------
In case you want to update to newer versions (from Git), you can just run the "update" command::
make update
Useful settings
----------------
It is better to actually turn the debugging mode on when you're developing.
You can create a ``settings.cfg`` file, with the following content::
DEBUG = True
SQLACHEMY_ECHO = DEBUG
Then before running the application, declare its path with ::
export IHATEMONEY_SETTINGS_FILE_PATH="$(pwd)/settings.cfg"
You can also set the ``TESTING`` flag to ``True`` so no mails are sent
(and no exception is raised) while you're on development mode.
In some cases, you may need to disable secure cookies by setting
``SESSION_COOKIE_SECURE`` to ``False``. This is needed if you
access your dev server over the network: with the default value
of ``SESSION_COOKIE_SECURE``, the browser will refuse to send
the session cookie over insecure HTTP, so many features of Ihatemoney
won't work (project login, language change, etc).
.. _contributing-developer:
Contributing as a developer
===========================
All code contributions should be submitted as Pull Requests on the
`github project `_.
Below are some points that you should check to help you prepare your Pull Request.
Running tests
-------------
Please, think about updating and running the tests before asking for a pull request
as it will help us to maintain the code clean and running.
To run the tests::
make test
Tests can be edited in ``ihatemoney/tests/tests.py``. If some test cases fail because
of your changes, first check whether your code correctly handle these cases.
If you are confident that your code is correct and that the test cases simply need
to be updated to match your changes, update the test cases and send them as part of
your pull request.
If you are introducing a new feature, you need to either add tests to existing classes,
or add a new class (if your new feature is significantly different from existing code).
Formatting code
---------------
We are using `black `_ and
`isort `_ formatters for all the Python
files in this project. Be sure to run it locally on your files.
To do so, just run::
make black isort
You can also integrate them with your dev environment (as a *format-on-save*
hook, for instance).
Creating database migrations
----------------------------
In case you need to modify the database schema, first make sure that you have
an up-to-date database by running the dev server at least once (the quick way
or the hard way, see above). The dev server applies all existing migrations
when starting up.
You can now update the models in ``ihatemoney/models.py``. Then run the following
command to create a new database revision file::
make create-database-revision
If your changes are simple enough, the generated script will be populated with
the necessary migrations steps. You can view and edit the generated script, which
is useful to review that the expected model changes have been properly detected.
Usually the auto-detection works well in most cases, but you can of course edit the
script to fix small issues. You could also edit the script to add data migrations.
When you are done with your changes, don't forget to add the migration script to
your final git commit!
If the migration script looks completely wrong, remove the script and start again
with an empty database. The simplest way is to remove or rename the dev database
located at ``/tmp/ihatemoney.db``, and run the dev server at least once.
For complex migrations, it is recommended to start from an empty revision file
which can be created with the following command::
make create-empty-database-revision
You then need to write the migration steps yourself.
How to build the documentation ?
================================
The documentation is using `sphinx `_ and
its source is located inside the `docs folder
`_.
Install doc dependencies (within the virtual environment, if any)::
pip install -e .[doc]
And to produce a HTML doc in the `docs/_output` folder::
cd docs/
make html
How to release?
===============
Requirements
------------
To create a new release, make sure you fullfil all requirements:
- Are you a maintainer of the pypi package?
- Are you sure you have no local tags? They will all be published
to the github process as part of the release process
- Make sure you have a ``~/.pypirc`` file with the following content,
replacing ``YOUR_PYPI_USERNAME`` with your real username::
[distutils]
index-servers =
pypi
[pypi]
username:YOUR_PYPI_USERNAME
Choosing a version number
-------------------------
The project follows `semantic versioning `_.
To sum things up:
- **if there is a breaking change since the last release:** increase the major
version number (11.X.Y -> 12.0.0). Example of breaking changes: drop support
for an old version of python, new setting without default value (requires
an admin to configure the new setting), changed URL paths, any other incompatible
change. Make sure to :ref:`document the upgrade process`.
- **if there is a significant new feature or a new setting:** increase the minor
version number (11.4.Y -> 11.5.0). Make sure to :ref:`document any new settings`.
- **if it's mostly bugfixes and small changes:** increase the patch version number
(11.4.8 -> 11.4.9)
Making the release
------------------
In order to issue a new release, follow the following steps:
- Merge remaining pull requests;
- Switch to the master branch;
- Update :file:`CHANGELOG.rst` with the last changes;
- Update :file:`CONTRIBUTORS` (instructions inside the file);
- If needed, recompress assets. It requires zopflipng and ImageMagick `mogrify`::
make compress-assets
- Build the translations::
make update-translations
make build-translations
- If you're not completely sure of yourself at this point, you
can optionally: create a new branch, push it, open a pull request,
check the CI result, and then merge the branch to master.
Once this is done, make sure your local git repository is on the master branch,
and let's release!::
make release
This will publish the new version to `the Python Package Index `_ (PyPI)
and publish a tag in the git repository.
.. note:: The above command will prompt for version number, handle
:file:`CHANGELOG.rst` and :file:`setup.cfg` updates, package creation,
pypi upload. It will prompt you before each step to get your consent.
Finally, create a release on Github and copy the relevant changelog extract into it.
Unfortunately, you need to manually convert links to Markdown...
We have a `discussion to automate this step `_.