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buildPythonPackage: Add --old-and-unmanageable flag to install command and add more docs.

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For explanation see inline comments.
This commit is contained in:
Domen Kožar 2014-01-11 11:44:24 +01:00
parent c80feaf542
commit b1ffb9ede4
1 changed files with 21 additions and 10 deletions
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29
pkgs/development/python-modules/generic/default.nix
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@ -7,15 +7,16 @@
{ name
# by default prefix name with python version name, e.g. "python3.3-"
# by default prefix `name` e.g. "python3.3-${name}"
, namePrefix ? python.libPrefix + "-"
, buildInputs ? []
# TODO: document
# pass extra information to the distutils global configuration (think as global setup.cfg)
, distutilsExtraCfg ? ""
# TODO: say what it does
# propagate build dependencies so in case we have A -> B -> C,
# C can import propagated packages by A
, propagatedBuildInputs ? []
# passed to "python setup.py install"
@ -71,6 +72,7 @@ python.stdenv.mkDerivation (attrs // {
checkPhase = attrs.checkPhase or ''
runHook preCheck
# reduce output to only dots, if a test fails error output will include verbose info
${python}/bin/${python.executable} setup.py test -q
runHook postCheck
@ -91,7 +93,16 @@ python.stdenv.mkDerivation (attrs // {
export PYTHONPATH="$out/lib/${python.libPrefix}/site-packages:$PYTHONPATH"
${python}/bin/${python.executable} setup.py install --install-lib=$out/lib/${python.libPrefix}/site-packages \
${python}/bin/${python.executable} setup.py install \
# sometimes packages specify where files should be installed outside the usual
# python lib prefix, we override that back so all infrastructure (setup hooks)
# work as expected
--install-lib=$out/lib/${python.libPrefix}/site-packages \
# instruct setuptools not to use eggs but fallback to plan package install
# this also reduces one .pth file in the chain, but the main reason is to
# force install process to install only scripts for the package we are
# installing (otherwise it will install scripts also for dependencies)
--old-and-unmanageable \
--prefix="$out" ${lib.concatStringsSep " " setupPyInstallFlags}
# A pth file might have been generated to load the package from
@ -116,14 +127,14 @@ python.stdenv.mkDerivation (attrs // {
wrapPythonPrograms
# If a user installs a Python package, they probably also wants its
# dependencies in the user environment (since Python modules don't
# have something like an RPATH, so the only way to find the
# dependencies in the user environment profile (only way to find the
# dependencies is to have them in the PYTHONPATH variable).
# TODO: better docs
# Allows you to do: $ PYTHONPATH=~/.nix-profile/lib/python2.7/site-packages python
if test -e $out/nix-support/propagated-build-inputs; then
ln -s $out/nix-support/propagated-build-inputs $out/nix-support/propagated-user-env-packages
fi
# TODO: document
createBuildInputsPth build-inputs "$buildInputStrings"
for inputsfile in propagated-build-inputs propagated-native-build-inputs; do
if test -e $out/nix-support/$inputsfile; then
@ -135,9 +146,9 @@ python.stdenv.mkDerivation (attrs // {
meta = {
# default to python's platforms
platforms = python.meta.platforms;
} // meta // {
} // meta // with lib.maintainers; {
# add extra maintainer(s) to every package
maintainers = (meta.maintainers or []) ++ [ lib.maintainers.chaoflow lib.maintainers.iElectric ];
maintainers = (meta.maintainers or []) ++ [ chaoflow iElectric ];
};
})