Everything technical

Ok, so I checked Pinax dependencies and found some external libs to be packaged before being able to completely package Pinax. This packages will form the “depends” line of Pinax itself.

Looking carefully, the first one is named django_extensions, but really the name should be “django-extensions”, and you can find the project with the not intuitive name of “django-commandline-extensions” here at googlecode.

Ok, let’s see the spec file:

%{!?python_sitelib: %define python_sitelib %(%{__python} -c “from distutils.sysconfig import get_python_lib; print get_python_lib()”)}

Name:           django-extensions
Version:        0.4.1
Release:        1%{?dist}
Summary:        Django command line extensions

Up to this point, standard stuff. The {?dist} should stand for “current distribution”, so it will end in a “fc11″ package.

Group:          Development/Languages
License:        BSD
URL:            http://code.google.com/p/django-command-extensions/
Source0:        %{name}-%{version}.tar.gz
Source1:        %{name}-docs-%{version}.tar.gz

The Group is standard for Python / Django libraries. License is taken from the project’s homepage, source is the standard .tar.gz file which is downloaded from the front page of the project. Source1 is extracted from the github 0.4.1 tag of the project and contains just the documentation to be built.

BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)

BuildArch:      noarch
BuildRequires:  python-devel python-sphinx
Requires:       Django

%description
This is a repository for collecting global custom management extensions
for the Django Framework

The buildroot path is standard, arch is noarch (just python code…), the build requires gets the addition of python-sphinx (python documentation generator) which, at buildtime, generates html documentation from .rst files. Obviously runtime requirements are Django, while the description is a copy and paste from the project home page.

%package doc
Summary:        Documentation for django-extensions
Group:          Documentation
Requires:       %{name} = %{version}-%{release}
Provides:       %{name}-docs = %{version}-%{release}
Obsoletes:      %{name}-docs < %{version}-%{release}

%description doc
This package contains the documentation for the django-extension library

Wait a minute, what is this? Exactly, we are building not one but two packages. One for code, one for doc.

%prep
%setup -q -n %{name}-%{version}
%setup -a 1

Ok, now things become interesting. According to both the Fedora Project RPM Guide and the Maximum RPM book on rpm.org, the above section reads as: prepare environment; extract first source file silently in a directory named $name-$version (e.g. django-extension-0.4.1), then extract the second source file after changing directory to the newly created directory. This is necessary because I compressed just the docs directory level in the git-donwloaded file.

%build
%{__python} setup.py build

%install
rm -rf $RPM_BUILD_ROOT
%{__python} setup.py install -O1 –skip-build –root $RPM_BUILD_ROOT

(cd docs && make html)

All this stuff comes standard creating an empty python spec file, apart from the last line, which builds the html documentation. This is suggested also by Django spec file (go get it with a yumdownloader –source Django and rpm -ivh the src.rpm).

%clean
rm -rf $RPM_BUILD_ROOT

%files
%defattr(-,root,root,-)
%{python_sitelib}/*

Standard stuff again.

%files doc
%doc docs

doc packages files

%changelog
* Sun Aug 23 2009 Luca Botti <lucabotti…fedoraproject.org>
- Initial RPM Release

changelog description.

This file is uploaded at my fedorapeople.org’s address and is submitted in bugzilla for review here. I am waiting for sponsorship. Thanks.

More packages will follow. Stay tuned.

Tags: Django, Fedora, Linux, Packaging, Pinax

This entry was posted on Monday, August 24th, 2009 at 5:55 am and is filed under Uncategorized. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.