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237 lines
10 KiB
ReStructuredText
237 lines
10 KiB
ReStructuredText
============
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Contributing
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============
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.. note:: Before you begin working on your contribution, please read and become familiar with the design_ of ``django-admin2``. The design_ document should hopefully make it clear what our constraints and goals are for the project.
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.. _design: https://django-admin2.readthedocs.org/en/latest/design.html
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Setup
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=====
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Fork on GitHub
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--------------
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Before you do anything else, login/signup on GitHub and fork **django-admin2** from the `GitHub project`_.
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Clone your fork locally
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-----------------------
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If you have git-scm installed, you now clone your git repo using the following command-line argument where <my-github-name> is your account name on GitHub::
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git clone git@github.com:<my-github-name>/django-admin2.git
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Local Installation
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-------------------------
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1. Create a virtualenv_ (or use virtualenvwrapper_). Activate it.
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2. cd into django-admin2
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3. type ``$ pip install -r requirements.txt``
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4. type ``$ python setup.py develop``
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Try the example projects
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--------------------------
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1. cd into example/ (or example2/)
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2. create the database: ``$ python manage.py syncdb``
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3. run the dev server: ``$ python manage.py runserver``
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.. _virtualenv: http://www.virtualenv.org/en/latest/
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.. _virtualenvwrapper: http://virtualenvwrapper.readthedocs.org/en/latest/
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Issues!
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=======
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The list of outstanding **django-admin2** feature requests and bugs can be found on our on our GitHub `issue tracker`_. Pick an unassigned issue that you think you can accomplish, add a comment that you are attempting to do it, and shortly your own personal label matching your GitHub ID will be assigned to that issue.
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Feel free to propose issues that aren't described!
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Tips
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----
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#. **starter** labeled issues are deemed to be good low-hanging fruit for newcomers to the project, Django, or even Python.
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#. **doc** labeled issues must only touch content in the docs folder.
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#. Since this project will live on inheritance, all views are Class-Based.
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#. Familiarize yourself with the project design_ document.
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Setting up topic branches and generating pull requests
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======================================================
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.. note:: This is our way of describing our version of git-flow.
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While it's handy to provide useful code snippets in an issue, it is better for
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you as a developer to submit pull requests. By submitting pull request your
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contribution to django-admin2 will be recorded by Github.
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In git it is best to isolate each topic or feature into a "topic branch". While
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individual commits allow you control over how small individual changes are made
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to the code, branches are a great way to group a set of commits all related to
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one feature together, or to isolate different efforts when you might be working
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on multiple topics at the same time.
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While it takes some experience to get the right feel about how to break up
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commits, a topic branch should be limited in scope to a single ``issue`` as
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submitted to an issue tracker.
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Also since GitHub pegs and syncs a pull request to a specific branch, it is the
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**ONLY** way that you can submit more than one fix at a time. If you submit
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a pull from your master branch, you can't make any more commits to your master
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without those getting added to the pull.
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To create a topic branch, its easiest to use the convenient ``-b`` argument to ``git checkout``::
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git checkout -b fix-broken-thing
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Switched to a new branch 'fix-broken-thing'
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You should use a verbose enough name for your branch so it is clear what it is
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about. Now you can commit your changes and regularly merge in the upstream
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develop as described below.
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When you are ready to generate a pull request, either for preliminary review,
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or for consideration of merging into the project you must first push your local
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topic branch back up to GitHub::
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git push origin fix-broken-thing
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Now when you go to your fork on GitHub, you will see this branch listed under
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the "Source" tab where it says "Switch Branches". Go ahead and select your
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topic branch from this list, and then click the "Pull request" button.
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Your pull request should be applied to the **develop** branch of django-admin2.
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Be sure to change from the default of ``master`` to ``develop``.
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Next, you can add a comment about your branch. If this in response to
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a submitted issue, it is good to put a link to that issue in this initial
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comment. The repo managers will be notified of your pull request and it will
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be reviewed (see below for best practices). Note that you can continue to add
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commits to your topic branch (and push them up to GitHub) either if you see
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something that needs changing, or in response to a reviewer's comments. If
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a reviewer asks for changes, you do not need to close the pull and reissue it
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after making changes. Just make the changes locally, push them to GitHub, then
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add a comment to the discussion section of the pull request.
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Pull upstream changes into your fork regularly
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==================================================
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**django-admin2** is advancing quickly. It is therefore critical that you pull upstream changes from master into your fork on a regular basis. Nothing is worse than putting in a day of hard work into a pull request only to have it rejected because it has diverged too far from master.
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To pull in upstream changes::
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git remote add upstream https://github.com/twoscoops/django-admin2.git
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git fetch upstream develop
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Check the log to be sure that you actually want the changes, before merging::
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git log upstream/develop
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Then merge the changes that you fetched::
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git merge upstream/develop
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For more info, see http://help.github.com/fork-a-repo/
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How to get your pull request accepted
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=====================================
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We want your submission. But we also want to provide a stable experience for our users and the community. Follow these rules and you should succeed without a problem!
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Run the tests!
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--------------
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Before you submit a pull request, please run the entire django-admin2 test suite via::
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python runtests.py
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The first thing the core committers will do is run this command. Any pull request that fails this test suite will be **immediately rejected**.
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If you add code/views you need to add tests!
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--------------------------------------------
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We've learned the hard way that code without tests is undependable. If your pull request reduces our test coverage because it lacks tests then it will be **rejected**.
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For now, we use the Django Test framework (based on unittest).
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Also, keep your tests as simple as possible. Complex tests end up requiring their own tests. We would rather see duplicated assertions across test methods then cunning utility methods that magically determine which assertions are needed at a particular stage. Remember: `Explicit is better than implicit`.
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You don't need to run the whole test suite during development in order to make
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the test cycles a bit faster. Just pass in the specific tests you want to run
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to ``runtests.py`` as you would do with the ``django-admin.py test`` command.
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Examples::
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# only run the tests from application ``blog``
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python runtests.py blog
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# only run testcase class ``Admin2Test`` from app ``djadmin2``
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python runtests.py djadmin2.Admin2Test
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# run all tests from application ``blog`` and the test named
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# ``test_register`` on the ``djadmin2.Admin2Test`` testcase.
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python runtests.py djadmin2.Admin2Test.test_register blog
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Don't mix code changes with whitespace cleanup
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----------------------------------------------
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If you change two lines of code and correct 200 lines of whitespace issues in a file the diff on that pull request is functionally unreadable and will be **immediately rejected**. Whitespace cleanups need to be in their own pull request.
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Keep your pull requests limited to a single issue
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--------------------------------------------------
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django-admin2 pull requests should be as small/atomic as possible. Large, wide-sweeping changes in a pull request will be **rejected**, with comments to isolate the specific code in your pull request. Some examples:
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#. If you are making spelling corrections in the docs, don't modify the settings.py file (pydanny_ is guilty of this mistake).
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#. If you are fixing a view don't '*cleanup*' unrelated views. That cleanup belongs in another pull request.
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#. Changing permissions on a file should be in its own pull request with explicit reasons why.
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Best Practices
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--------------
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Python
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~~~~~~
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Follow PEP-0008 and memorize the Zen of Python::
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>>> import this
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Please keep your code as clean and straightforward as possible. When we see more than one or two functions/methods starting with `_my_special_function` or things like `__builtins__.object = str` we start to get worried. Rather than try and figure out your brilliant work we'll just **reject** it and send along a request for simplification.
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Furthermore, the pixel shortage is over. We want to see:
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* `options` instead of `opts`
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* `model_name` instead of `model`
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* `my_function_that_does_things` instead of `mftdt`
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As much as possible, we follow the advice of the `Two Scoops of Django`_ book. Periodically the book will be referenced either for best practices or as a blunt object by the project lead in order to end bike-shedding.
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.. _`Two Scoops of Django`: https://2scoops.org
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Templates
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~~~~~~~~~
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Follow bootstrap's coding standards for HTML_ and CSS_. Use two spaces for indentation, and write so the templates are readable (not for the generated html).
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.. _HTML: https://github.com/twitter/bootstrap/blob/master/CONTRIBUTING.md#coding-standards-html
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.. _CSS: https://github.com/twitter/bootstrap/blob/master/CONTRIBUTING.md#coding-standards-css
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How pull requests are checked, tested, and done
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===============================================
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First we pull the code into a local branch::
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git checkout -b <branch-name> <submitter-github-name
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git pull git://github.com/<submitter-github-name/django-twoscoops-project.git develop
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Then we run the tests::
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./runtests.py
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We finish with a merge and push to GitHub::
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git checkout develop
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git merge <branch-name>
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git push origin develop
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.. _installation: install.html
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.. _GitHub project: https://github.com/twoscoops/django-admin2
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.. _issue tracker: https://github.com/twoscoops/django-admin2/issues
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.. _pydanny: http://pydanny.com
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