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.. _environment:
Setting up a development environment
====================================
This document covers how to get an enviroment ready to contribute code to Bitmask.
Cloning the repo
----------------
.. note::
Stable releases are in *master* branch.
Development code lives in *develop* branch.
::
git clone git://leap.se/bitmask_client
git checkout develop
.. XXX change this when repo changes.
Base Dependencies
------------------
Bitmask depends on these libraries:
* `python 2.6 or 2.7`
* `qt4` libraries (see also :ref:`Troubleshooting PySide install <pysidevirtualenv>` about how to install inside your virtualenv)
* `openssl`
* `openvpn <http://openvpn.net/index.php/open-source/345-openvpn-project.html>`_
Debian
^^^^^^
In debian-based systems::
$ apt-get install openvpn python-pyside python-openssl
To install the software from sources::
$ apt-get install python-pip python-dev
.. _virtualenv:
Working with virtualenv
-----------------------
Intro
^^^^^^^^^^^^^^^^^^^
*Virtualenv* is the *Virtual Python Environment builder*.
It is a tool to create isolated Python environments.
The basic problem being addressed is one of dependencies and versions, and indirectly permissions. Imagine you have an application that needs version 1 of LibFoo, but another application requires version 2. How can you use both these applications? If you install everything into /usr/lib/python2.7/site-packages (or whatever your platform's standard location is), it's easy to end up in a situation where you unintentionally upgrade an application that shouldn't be upgraded.
Read more about it in the `project documentation page <http://pypi.python.org/pypi/virtualenv/>`_.
.. note::
this section could be completed with useful options that can be passed to the virtualenv command (e.g., to make portable paths, site-packages, ...). We also should document how to use virtualenvwrapper.
Create and activate your dev environment
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
::
$ virtualenv </path/to/new/environment>
$ source </path/to/new/environment>/bin/activate
.. _pysidevirtualenv:
Avoid compiling PySide inside a virtualenv
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
If you attempt to install PySide inside a virtualenv as part of the rest of the dependencies using pip, basically it will take ages to compile.
As a workaround, you can run the following script after creating your virtualenv. It will symlink to your global PySide installation (*this is the recommended way if you are running a debian-based system*)::
$ pkg/postmkvenv.sh
A second option if that does not work for you would be to install PySide globally and pass the ``--site-packages`` option when you are creating your virtualenv::
$ apt-get install python-pyside
$ virtualenv --site-packages .
After that, you must export ``LEAP_VENV_SKIP_PYSIDE`` to skip the isntallation::
$ export LEAP_VENV_SKIP_PYSIDE=1
And now you are ready to proceed with the next section.
.. _pydepinstall:
Install python dependencies
^^^^^^^^^^^^^^^^^^^^^^^^^^^
You can install python dependencies with ``pip``. If you do it inside your working environment, they will be installed avoiding the need for administrative permissions::
$ pip install -r pkg/requirements.pip
.. _copyscriptfiles:
Copy script files
-----------------
The openvpn invocation expects some files to be in place. If you have not installed `bitmask` from a debian package, you must copy these files manually by now::
$ sudo mkdir -p /etc/leap
$ sudo cp pkg/linux/resolv-update /etc/leap
.. _policykit:
Running openvpn without root privileges
---------------------------------------
In linux, we are using ``policykit`` to be able to run openvpn without root privileges, and a policy file is needed to be installed for that to be possible.
The setup script tries to install the policy file when installing bitmask system-wide, so if you have installed bitmask in your global site-packages at least once it should have copied this file for you.
If you *only* are running bitmask from inside a virtualenv, you will need to copy this file by hand::
$ sudo cp pkg/linux/polkit/net.openvpn.gui.leap.policy /usr/share/polkit-1/actions/
Missing Authentication agent
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
If you are using linux and running a desktop other than unity or gnome, you might get an error saying that you are not running the authentication agent. For systems with gnome libraries installed you can launch it like this::
/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1 &
or if you are a kde user::
/usr/lib/kde4/libexec/polkit-kde-authentication-agent-1 &
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