######################
Contributing to HTTPie
######################

Bug reports and code and documentation patches are welcome. You can
help this project also by using the development version of HTTPie
and by reporting any bugs you might encounter.

1. Reporting bugs
=================

**It's important that you provide the full command argument list
as well as the output of the failing command.**
Use the ``--debug`` flag and copy&paste both the command and its output
to your bug report, e.g.:

.. code-block:: bash

    $ http --debug [COMPLETE ARGUMENT LIST THAT TRIGGERS THE ERROR]
    [COMPLETE OUTPUT]


2. Contributing Code and Docs
=============================

Before working on a new feature or a bug, please browse `existing issues`_
to see whether it has been previously discussed. If the change in question
is a bigger one, it's always good to discuss before you start working on
it.


Development Environment
--------------------------------


Getting the code
****************

Go to https://github.com/jakubroztocil/httpie and fork the project repository.


.. code-block:: bash

    # Clone your fork
    git clone git@github.com:<YOU>/httpie.git

    # Enter the project directory
    cd httpie

    # Create a branch for your changes
    git checkout -b my_topical_branch


Setup
*****

The `Makefile`_ contains a bunch of tasks to get you started. Just run
the following command:


.. code-block:: bash

    make

* The commands creates an isolated Python virtual environment inside ``./venv``
  (via the standard library `venv`_ tool);
* installs all dependencies and also installs HTTPie
  (in editable mode so that the ``http`` command will point to your
  working copy).
* and runs tests (It is the same as running ``make install test``).


Python virtual environment
**************************

Activate the Python virtual environment—created via the ``make install``
task during `setup`_—for your active shell session using the following command:

.. code-block:: bash

    source venv/bin/activate

(If you use ``virtualenvwrapper``, you can also use ``workon httpie`` to
active the environment — we have created a symlink for you. It’s a bit of
a hack but it works™.)

You should now see ``(httpie)`` next to your shell prompt, and
the ``http`` should point to you development copy:

.. code-block::

    (httpie) ~/Code/httpie $ which http
    /Users/jakub/Code/httpie/venv/bin/http
    (httpie) ~/Code/httpie $ http --version
    2.0.0-dev

(Btw, you don’t need to activate the virtual environment if you just want
run some of the ``make`` tasks. You can also invoke the development
version of HTTPie directly with ``./venv/bin/http`` without having to activate
the environment first. The same goes for ``./venv/bin/py.test``, etc.).


Making Changes
--------------

Please make sure your changes conform to `Style Guide for Python Code`_ (PEP8)
and that ``make pycodestyle`` passes.


Testing & CI
------------

Please add tests for any new features and bug fixes.

When you open a pull request,
`Github Actions <https://github.com/jakubroztocil/httpie/actions>`_
will automatically run HTTPie’s `test suite`_ against your code
so please make sure all checks pass.


Running tests locally
*********************

HTTPie uses the `pytest`_ runner. It also uses `Tox`_ which allows you to run
tests on multiple Python versions even when testing locally.


.. code-block:: bash

    # Run tests on the current Python interpreter with coverage.
    make test

    # Run tests with coverage
    make test-cover

    # Run all tests in all of the supported and available Pythons via Tox
    make test-tox

    # Test PEP8 compliance
    make pycodestyle

    # Run extended tests — for code as well as .rst files syntax, packaging, etc.
    make test-all


Running specific tests
**********************

After you have activated your virtual environment (see `setup`_), you
can run specific tests from the terminal:

.. code-block:: bash

    # Run specific tests on the current Python
    py.test tests/test_uploads.py
    py.test tests/test_uploads.py::TestMultipartFormDataFileUpload
    py.test tests/test_uploads.py::TestMultipartFormDataFileUpload::test_upload_ok

    # Run specific tests on the on all Pythons via Tox
    # (change to `tox -e py37' to limit Python version)
    tox -- tests/test_uploads.py --verbose
    tox -- tests/test_uploads.py::TestMultipartFormDataFileUpload --verbose
    tox -- tests/test_uploads.py::TestMultipartFormDataFileUpload::test_upload_ok --verbose

-----

See `Makefile`_ for additional development utilities.


Finally, don't forget to add yourself to `AUTHORS`_!


.. _Tox: http://tox.testrun.org
.. _supported Python environments: https://github.com/jakubroztocil/httpie/blob/master/tox.ini
.. _existing issues: https://github.com/jakubroztocil/httpie/issues?state=open
.. _AUTHORS: https://github.com/jakubroztocil/httpie/blob/master/AUTHORS.rst
.. _Makefile: https://github.com/jakubroztocil/httpie/blob/master/Makefile
.. _venv: https://docs.python.org/3/library/venv.html
.. _pytest: https://pytest.org/
.. _Style Guide for Python Code: https://python.org/dev/peps/pep-0008/
.. _test suite: https://github.com/jakubroztocil/httpie/tree/master/tests