collective.recipe.nix 0.8.0

Buildout recipe for creating Nix expressions from eggs list

collective.recipe.nix

This is an experimental buildout recipe for creating nix expression from a buildout eggs list. This is work in progress. Please, contribute.

Example of usage

At first, define ./default.nix with buildout:

with import <nixpkgs> {}; {
  myEnv = stdenv.mkDerivation {
    name = "myEnv";
    buildInputs = [
      pythonPackages.readline
      pythonPackages.buildout
    ];
    shellHook = ''
      export SSL_CERT_FILE=~/.nix-profile/etc/ca-bundle.crt
    '';
  };
}

And example ./buildout.cfg:

[buildout]
extends = https://dist.plone.org/release/4-latest/versions.cfg
parts =
    plone
    zest.releaser
versions = versions

[instance]
recipe = plone.recipe.zope2instance
eggs = Plone
user = admin:admin

[plone]
recipe = collective.recipe.nix
eggs =
    ${instance:eggs}
    plone.recipe.zope2instance

[zest.releaser]
recipe = collective.recipe.nix
eggs = zest.releaser

[versions]
zc.buildout =
setuptools =

Run the buildout:

$ nix-shell --run buildout

Now you should be able to run zest.releaser with:

$ nix-shell zest.releaser.nix --run fullrelease

And launching python with all Plone dependencies (after removing buildout created site.py to remove references from buildout installed eggs) with:

$ rm -f parts/instance/site.py parts/instance/site.pyc
$ nix-shell plone.nix --run python

And Plone could be started by entering the following lines into the interpreter:

import plone.recipe.zope2instance.ctl
plone.recipe.zope2instance.ctl.main(['-C', 'parts/instance/etc/zope.conf', 'fg'])

Advanced configuration

Adding other buildInputs:

[plone]
...
build-inputs =
    redis

Mapping buildInputs for generated Python derivations:

[plone]
...
build-inputs =
   dataflake.fakeldap=pythonPackages."setuptools-git"

or:

[plone]
...
build-inputs =
   plone-inputs

[plone-inputs]
dataflake.fakeldap = pythonPackages."setuptools-git"

Replacing otherwise generated Python derivations with existing nixpkgs derivations:

[plone]
...
nixpkgs =
    python-ldap=pythonPackages.ldap

or:

[plone]
...
nixpkgs =
    plone-nixpkgs

[plone-nixpkgs]
python-ldap = pythonPackages.ldap

Adding URLs for packages not available at PyPI:

[plone]
...
urls =
    Plone=https://example.com/Plone-4.3.6.zip#md5=c370c0c8eace1081ec5b057b2c4149b7

or:

[plone]
...
urls =
    plone-urls

[plone-urls]
Plone = https://example.com/Plone-4.3.6.zip#md5=c370c0c8eace1081ec5b057b2c4149b7

Changelog

0.8.0 (2015-07-10)

• Add support for comma separated list for inline build-inputs, propagated-build-inputs and nixpkgs [datakurre]

0.7.0 (2015-07-10)

• Add option to inject propagatedBuildInputs to enable extra package-dependent additional features [datakurre]

0.6.0 (2015-07-10)

• Add to create installable python package expression for each listed egg [datakurre]

0.5.0 (2015-07-09)

• Fix to resolve cyclic dependencies by letting the first seen dependency win and persist into resulting expression [datakurre]

0.4.0 (2015-07-09)

• Change to produce {name}-env.nix instead of {name}.env.nix as buildable derivations [datakurre]

0.3.0 (2015-07-08)

• Change resulting derivation to be buildEnv with python.buildEnv to make it also nix-buildable [datakurre]

0.2.0 (2015-07-08)

• Add buildout-based configuration [datakurre]

• Back to development: 0.1.2 [datakurre]

0.1.1 (2015-07-08)

• Add support for plone.app.ldap [datakurre]

0.1.0 (2015-07-08)

• Proof of concept release.