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ZopeSkel provides a collection of project templates for Plone and Zope development projects.

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ZopeSkel provides a collection of project templates for Plone and Zope development projects.

ZopeSkel uses the paster Python library internally.

For a typical Plone site development the following development path is recommended:

  • Install ZopeSkel package to virtualenv, or otherwise isolated from system Python installation, on your local computer.
  • Create a new Plone 4 development installation using the plone4_buildout template.
  • Create a new logic package for the content types, forms and logic of the site. This can be done using the Dexterity ZopeSkel template (included in plone4_buildout).
  • Create a new theme package for the site. This can be done using the XDV template (included in plone4_buildout).
  • Test and develop on your local computer until everything is perfect.
  • Put created packages under source code sversion control (Subversion, Git).
  • Create a Plone installation on the production server. Plone Unified installer is the preferred method.
  • Install your site customization packages on the production server.

ZopeSkel can be installed in one of two ways: with buildout or with virtualenv.

Note

Despite existing documentation to the contrary, it is not recommended to install ZopeSkel in your system python.

Here are instructions how to include ZopeSkel as a part of your local buildout.cfg.

  • You can use zopeskel to add new projects to your buildout src/ folder.
  • You can use code skeleton local commands to add more content to your package.

Note

The plone4_buildout template has ZopeSkel and paster support out of the box and this is not needed if you used plone4_buildout to create your buildout.cfg.

Add to your buildout.cfg:

parts =
   ...
   paster
   zopeskel

[zopeskel]
recipe = zc.recipe.egg
eggs =
   ZopeSkel
   ${instance:eggs}

[paster]
recipe = zc.recipe.egg
eggs =
   ZopeSkel
   PasteScript
   PasteDeploy
   ${instance:eggs}
entry-points = paster=paste.script.command:run

After re-running buildout, you will have zopeskel and paster commands in the bin directory of your buildout.

First, install virtualenv into your system:

easy_install virtualenv

Next, create a virtual environment with the new virtualenv command:

virtualenv --no-site-packages --distribute zopeskelenv

Once virtualenv is finished, you can install zopeskel to your new virtual environment:

zopeskelenv/bin/easy_install zopeskel

Once this is complete, you will be left with zopeskel and paster commands in the bin directory inside your virtualenv.

To see details of the available templates:

zopeskel --list

More info about how zopeskel works:

zopeskel --help

Creating a Plone 4 buildout using virtualenv ZopeSkel installation:

source zopeskelenv/bin/activate
zopeskel plone4_buildout yourfoldername

The folder created (yourfoldername) can be checked in to the versioning system of your choice. It is now a portable, self-contained, ready-to-build Plone site. You can build the system at any time using the following:

cd yourfoldername
python bootstrap.py
bin/buildout

The plone4_buildout recipe results in a self-contained version of ZopeSkel installed via the buildout method described above. It thus provides the zopeskel and paster commands inside its bin folder. You can use these commands inside the buildout to create packages for your new Plone site:

bin/zopeskel plone3_theme src/plonetheme.yourcompanyid

The command will ask a few questions such as the desired package name and description, and output a complete package you can immediately start using. Interactive help is available by entering "?" as a response to any question.

Note

Because ZopeSkel is built on paster you can do anything we describe here using the paster command directly. If you do so, you can gain access to certain features of paster that have been disabled for zopeskel, but you also will lose access to many of the nicer features of zopeskel, including validation and in-line help.

In addition to project templates, the ZopeSkel system provides local commands. Local commands are context aware commands that help you to add more functionality to an existing ZopeSkel generated project.

Note

Local commands require using the paster command directly - the zopeskel command does not support them yet.

Note

Not all ZopeSkel templates provide local commands. In general, if local commands are available, you will be informed of the fact as your new package is generated.

To use local commands you need to first include the paster command in your buildout.cfg as instructed above.

Starting inside your Plone buildout, first create a new archetypes add-on:

cd src
../bin/zopeskel archetype mycompanyid.mycustomcontenttypes

Next, change directories into your new package and invoke paster to add a content type:

cd mycompanyid.mycustomcontenttypes
../../bin/paster

Usage: ../../bin/paster COMMAND
usage: paster [paster_options] COMMAND [command_options]

...

Commands:
...

... local commands:
    addcontent   Adds plone content types to your project

As you can see from the paster command output, your new package supports a local command called addcontent. You can use the addcontent command to add new code to your package. As with both zopeskel and paster, you can use the --list option to see what local commands are available in the context of the package you've created:

../../bin/paster addcontent --list

Available templates:
    atschema:      A handy AT schema builder
    browserlayer:  A Plone browserlayer
    contenttype:   A content type skeleton
    form:          A form skeleton
    formfield:     Schema field for a form
    i18nlocale:    An i18n locale directory structure
    portlet:       A Plone 3 portlet
    view:          A browser view skeleton
    zcmlmeta:      A ZCML meta directive skeleton

You can add an archetypes content type for managing lectures:

../../bin/paster addcontent -t contenttype LectureInfo

Then you can add schema fields to that content type:

../../bin/paster addcontent -t atschema

Local commands can be run as many times as needed to create your package. You can iteratively develop your content type, other content types, and more.

Note

When changing your package code, local commands will often change GenericSetup XML files (found in the in profiles/default folder of your package). These changes will not appear in Plone/Zope simply by restarting your instance. You will usually need to re-install your package in your development Plone site if you run any local commands in a package you've already installed.

More info

Since version 1.5, ZopeSkel has tests. It's required to run these before you check in any changes you make. They can be run like so:

python setup.py test

If you are developing ZopeSkel itself, instructions to run ZopeSkel from source check are in TRUNK.txt.

Issue tracker

Plone and ZopeSkel related documentation

Source code

Mailing List

Please contribute by submitting patches for what you consider 'best of breed' file layouts for starting Zope projects.

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