conda-recipes

Visit CASA.md for instructions on installing CASA in an Anaconda Python environment.

This repository contains the tools I use to build various packages in the Conda package manager used by the Anaconda Python distribution. Most of them build up to providing support for the Gtk+ 3 graphical toolkit and the CASA radio interferometry package. Builds are provided on 64-bit Linux and OS X. My packages are layered on top of those provided by the conda-forge project, so you must add conda-forge as a channel in your Conda configuration!

I upload built packages to my personal anaconda.org channel. You can configure your Anaconda installation to fetch packages from it with:

conda config --add channels pkgw-forge

To directly install the package pwkit (for example) without altering your configuration, use:

conda install -c pkgw-forge pwkit

As part of this work I’ve also developed a prebuilt Docker image that can be used to repeatably build binary linux-64 packages. For OS X, I use Vagrant to make osx-64 packages repeatably. My notes for developers may be valuable if you’re interesting in making Conda packages containing compiled code for Linux and/or Mac OS X machines.

How it All Works

Many of my Conda packages involve compiled code, and a big challenge is building such packages in a way that’s as platform-independent as possible. The OS X developer tools make this fairly manageable. But Linux is harder, especially since Conda doesn't explicitly specify the ABIs that they target. However, things built on CentOS 5 are generally highly portable — but no one wants to run CentOS 5 as their primary OS since it’s ancient!

So there are two main components to how I build my Conda packages. First, I have set up a Docker environment that allows me to build packages repeatably inside a stable, containerized Centos 5 environment. Then, I’ve written the Conda recipes that actually define the packages that I build. I’ve written up notes on how the system works if you might be interested in doing similar things.

OK, there are three components — I use Vagrant to generate and drive a repeatable, headless build environment for the OS X package builds.

• Notes for developers
• The order in which everything needs to be built

License

The Conda recipes are licensed under a 3-clause BSD license, for compatibility with the main conda-recipes repository. See the file LICENSE.txt for the details. Other files are licensed under the MIT License.

Copyright Notice For This File

Copyright 2014–2015 Peter Williams

This file is free documentation; the copyright holder gives unlimited permission to copy, distribute, and modify it.