we've started documenting how GNU MediaGoblin is built and how to add
new things.
+Third you'll need to :ref:`get the requirements
+<get-requirements-section>`.
-How to set up and maintain an environment for hacking
-=====================================================
+Fourth, you'll need to build a development environment. For this step, there are two options:
+1. :ref:`buildout and bootstrap <hacking-with-buildout>` (easier) OR
+2. :ref:`virtualenv <hacking-with-virtualenv>` (more flexible, but harder)
+
+Pick one---don't do both!
+
+
+.. _get-requirements-section:
Getting requirements
---------------------
+====================
First, you need to have the following installed before you can build
an environment for hacking on GNU MediaGoblin:
sudo apt-get install mongodb git-core python python-dev \
python-lxml
+.. YouCanHelp::
+
+ If you have instructions for other GNU/Linux distributions to set
+ up requirements, let us know!
+
+
+.. _hacking-with-buildout:
+
+How to set up and maintain an environment for hacking with buildout
+===================================================================
+
+.. Note::
+
+ Either follow the instructions in this section OR follow the ones
+ in :ref:`hacking-with-virtualenv`. But don't do both!
+
-Running bootstrap and buildout
-------------------------------
+**Requirements**
+
+No additional requirements.
+
+
+**Create a development environment**
After installing the requirements, follow these steps:
purposes this default should be fine.
-.. Note::
-
- We used `zc.buildout <http://www.buildout.org/>`_ because it
- involves fewer steps to get things running and less knowledge of
- Python packaging. However, if you prefer to use `virtualenv
- <http://pypi.python.org/pypi/virtualenv>`_, that should work just
- fine.
-
-
-Updating dependencies
----------------------
+**Updating for dependency changes**
While hacking on GNU MediaGoblin over time, you'll eventually have to
update your development environment because the dependencies have
./bin/buildout
-.. Note::
- You only need to do this when dependencies are updated. You don't
- need to do this when you've made code changes.
+**Updating for code changes**
+
+You don't need to do anything---code changes are automatically
+available.
+
+
+**Deleting your buildout**
+
+At some point, you may want to delete your buildout. Perhaps it's to
+start over. Perhaps it's to test building development environments
+with buildout.
+To do this, do::
-Wiping your environment for a clean-slate
------------------------------------------
+ rm -rf bin develop-eggs eggs mediagoblin.egg-info parts user_dev
+
+Usually buildout works pretty great and is super easy, but if you get
+problems with python-dateutil conflicts on your system, you may need
+to use virtualenv instead.
+
+
+.. _hacking-with-virtualenv:
+
+How to set up and maintain an environment for hacking with virtualenv
+=====================================================================
.. Note::
- Unless you're doing development and working on and testing creating
- a new instance, you will probably never have to do this. Will
- plans to do this work and thus he documented it.
+ Either follow the instructions in this section OR follow the ones
+ in :ref:`hacking-with-buildout`. But don't do both!
-Delete the following directories:
+**Requirements**
-* bin/
-* develop-eggs/
-* eggs/
-* mediagoblin.egg-info/
-* parts/
-* user_dev/
+* virtualenv: http://pypi.python.org/pypi/virtualenv
+* virtualenv wrapper:
+ http://www.doughellmann.com/projects/virtualenvwrapper/ (be sure to
+ read the `install instructions
+ <http://www.doughellmann.com/docs/virtualenvwrapper/install.html>`_)
-.. YouCanHelp::
+**Create a development environment**
+
+1. Clone the repository::
+
+ git clone http://git.gitorious.org/mediagoblin/mediagoblin.git
+
+2. Create a virtual environment::
+
+ mkvirtualenv --no-site-packages mediagoblin
+
+3. If that doesn't put you in the virutal environment you just
+ created, then do::
+
+ workon mediagoblin
+
+4. Run::
+
+ python setup.py develop
+
+That's it!
+
+
+**Activating a virtual environment**
+
+When you want to work on GNU MediaGoblin, you need to activate the
+virtual environment like this::
+
+ workon mediagoblin
+
- If you're familiar with MongoDB and bash, we'd love to get a bash
- script that removes all the GNU MediaGoblin data from an existing
- MongoDB instance. Let us know!
+**Deactivating a virtual environment**
+
+If you want to deactivate it, you can do this::
+
+ deactivate
+
+
+**Updating a virtual environment with dependency changes**
+
+1. Enter the virtual environment.
+
+2. Run::
+
+ python setup.py develop
+
+
+**Updating a virtual environment with code changes**
+
+You don't need to do anything---code changes are automatically
+available.
+
+
+**Deleting a virtual environment**
+
+At some point you may want to delete your virtual environment.
+Perhaps it's to start over. Perhaps it's so you can test building
+development environments with virtualenv.
+
+To do this, do::
+
+ rmvirtualenv mediagoblin
Running the server
==================
-Run::
+If you did virtualenv, run::
+
+ paster serve mediagoblin.ini --reload
+
+If you did buildout, run::
./bin/paster serve mediagoblin.ini --reload
+Running celeryd
+===============
+
+You need to do this if you want your media to process and actually
+show up. It's probably a good idea in development to have the web
+server (above) running in one terminal and celeryd in another window.
+
+If you did virtualenv, run::
+
+ CELERY_CONFIG_MODULE=mediagoblin.celery_setup.from_celery celeryd
+
+If you did buildout, run::
+
+ CELERY_CONFIG_MODULE=mediagoblin.celery_setup.from_celery ./bin/celeryd
+
+
Running the test suite
======================
-Run::
+If you did virtualenv, run::
+
+ nosetests
+
+If you did buildout, run::
./bin/nosetests
+Troubleshooting
+===============
+
+pymongo.errors.AutoReconnect: could not find master/primary
+-----------------------------------------------------------
+
+If you see this::
+
+ pymongo.errors.AutoReconnect: could not find master/primary
+
+then make sure mongodb is installed and running.
+
+If it's installed, check the mongodb log. On my machine, that's ``/var/log/mongodb/mongodb.log``. If you see something like::
+
+ old lock file: /var/lib/mongodb/mongod.lock. probably means...
+
+Then delete the lock file and relaunch mongodb.
+
+
+Wiping your user data
+=====================
+
+.. Note::
+
+ Unless you're doing development and working on and testing creating
+ a new instance, you will probably never have to do this. Will
+ plans to do this work and thus he documented it.
+
+.. YouCanHelp::
+
+ If you're familiar with MongoDB, we'd love to get a `script that
+ removes all the GNU MediaGoblin data from an existing instance
+ <http://bugs.foocorp.net/issues/296>`_. Let us know!
+
+
Quickstart for Django programmers
=================================