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Zope3 paste deploy setup recipe

Project Description

The z3c.recipe.paster:serve generates a paste deploy serve scripts and configuration files for starting a paste deploy based Zope 3 setup. The paste deploy *.ini file content can get defined in the buildout.cfg file.

Note, you have to define an entry_point in your projects setup.py file for using a application_factory via the section name.

Detailed Documentation

z3c.recipe.paster:serve

This Zope 3 recipes offers a Paste Deploy setup for Zope3 projects. It requires to define a Paste Deploy .ini file in the buoldout.cfg. If you need a simple PasteScript setup you can use the z3c.recipe.paster:paster recipe which allows to run already existing ``.ini`` files.

Options

The ‘serve’ recipe accepts the following options:

eggs
The names of one or more eggs, with their dependencies that should be included in the Python path of the generated scripts.
ini
The paste deploy *.ini file content.
zope.conf
The zope.conf file defining the DB used in the WSGI app and the error log section.
site.zcml
The zope site.zcml file used by the zope application.

Test

Lets define a (bogus) eggs that we can use in our application:

>>> mkdir('demo')
>>> write('demo', 'setup.py',
... '''
... from setuptools import setup
... setup(name = 'demo')
... ''')

Now check if the setup was correct:

>>> ls('bin')
-  buildout

We’ll create a buildout.cfg file that defines our paster serve configuration:

>>> write('buildout.cfg',
... '''
... [buildout]
... develop = demo
... parts = var myapp
...
... [var]
... recipe = zc.recipe.filestorage
...
... [myapp]
... eggs = demo
... recipe = z3c.recipe.paster:serve
... ini =
...   [app:main]
...   use = egg:demo
...
...   [server:main]
...   use = egg:Paste#http
...   host = 127.0.0.1
...   port = 8080
...
... zope.conf =
...
...   ${var:zconfig}
...
...   <eventlog>
...     <logfile>
...       formatter zope.exceptions.log.Formatter
...       path ${buildout:directory}/parts/myapp/error.log
...     </logfile>
...     <logfile>
...       formatter zope.exceptions.log.Formatter
...       path STDOUT
...     </logfile>
...   </eventlog>
...
...  devmode on
...
... site.zcml =
...   <!-- inlcude other zcml files like principals.zcml or securitypolicy.zcml
...        and your app configuration -->
...   <include package="demo" file="app.zcml" />
...
... ''' % globals())

Now, Let’s run the buildout and see what we get:

>>> print system(join('bin', 'buildout')),
Develop: '/sample-buildout/demo'
Installing var.
Installing myapp.
Generated script '/sample-buildout/bin/myapp'.

The bin folder contains the scripts for serve our new created paste deploy server:

>>> ls('bin')
-  buildout
-  myapp

Check the content of our new generated myapp script. As you can see, the generated script uses the paste.script.command.run for starting our server:

>>> cat('bin', 'myapp')
#!"C:\Python24\python.exe"
<BLANKLINE>
import sys
sys.path[0:0] = [
  '/sample-buildout/demo',
  '/sample-pyN.N.egg',
  ...
  '/sample-pyN.N.egg',
  ]
<BLANKLINE>
import os
sys.argv[0] = os.path.abspath(sys.argv[0])
<BLANKLINE>
<BLANKLINE>
import paste.script.command
<BLANKLINE>
if __name__ == '__main__':
    paste.script.command.run([
  'serve', '...myapp.ini',
  ]+sys.argv[1:])

Those sample-pyN.N.egg lines should be PasteScript and it’s dependencies.

Check the content of our new generated myapp.ini file:

>>> cat('parts', 'myapp', 'myapp.ini')
<BLANKLINE>
[app:main]
use = egg:demo
[server:main]
use = egg:Paste#http
host = 127.0.0.1
port = 8080

Entry point

As you probably know, there is some magic going on during startup. The section app:main in the myapp.ini file above must be defined as entry_point in your projects setup.py file. Without them, the app:main isn’t available. You can define such a app:main entry point using the default application_factory offered from the z3c.recipe.paster.wsgi package. Of corse you can define your own application factory if you need to pass some additional configuration for your app to the factroy defined in your custom *.ini file.

The default entry_point offered from the z3c.recipe.paster could be included in your custom setup.py file like:

setup(
    name = 'something',
    version = '0.5.0dev',
    ...
    include_package_data = True,
    package_dir = {'':'src'},
    namespace_packages = [],
    install_requires = [
        'some.package',
        ],
    entry_points = """
        [paste.app_factory]
        main = z3c.recipe.paster.wsgi:application_factory
        """,
)

z3c.recipe.paster:paster

This Zope 3 recipes offers a Paste Deploy script setup for Zope3 projects.

The paster part allows us to setup a plain paster executable which could be used for start up your zope server using the paste deploy “.ini file like: bin/paster serve app.ini. This recipe inherits the zc.recipe.egg class and will setup the paster within your egg dependency. All you have to do is to define your eggs. The benefit of this recipe compared with the built in PasteScript it the option to choose another name if you need more then one paster script. This is required if you have paster with different egg dependencies in one buildout configuration.

Options

The ‘serve’ recipe accepts the following options:

eggs
The names of one or more eggs, with their dependencies that should be included in the Python path of the generated scripts.
ini
The paste deploy *.ini file content.
zope.conf
The zope.conf file defining the DB used in the WSGI app and the error log section.
site.zcml
The zope site.zcml file used by the zope application.

Test

Lets define a (bogus) eggs that we can use in our application:

>>> mkdir('sample')
>>> write('sample', 'setup.py',
... '''
... from setuptools import setup
... setup(name = 'sample')
... ''')

Now check if the setup was correct:

>>> ls('bin')
-  buildout-script.py
-  buildout.exe

We’ll create a buildout.cfg file that defines our paster configuration:

>>> write('buildout.cfg',
... '''
... [buildout]
... develop = sample
... parts = mypaster
...
... [mypaster]
... recipe = z3c.recipe.paster:paster
... eggs = sample
...
... ''' % globals())
>>> ls('bin')
-  buildout-script.py
-  buildout.exe

Now, Let’s run the buildout and see what we get:

>>> print system(join('bin', 'buildout')),
Develop: '/sample-buildout/sample'
Installing mypaster.
Generated script '/sample-buildout/bin/mypaster'.

Now check if the setup was correct:

>>> ls('bin')
-  buildout-script.py
-  buildout.exe
-  mypaster-script.py
-  mypaster.exe

Check the content of our new generated paster script. As you can see, the generated script uses the paste.script.command.run for starting our server. This script is generic but uses the path of our eggs and uses the given name:

>>> cat('bin', 'mypaster')
<BLANKLINE>
import sys
sys.path[0:0] = [
  '/sample-buildout/sample',
  '/sample-pyN.N.egg',
  ...
  '/sample-pyN.N.egg',
  ]
<BLANKLINE>
import paste.script.command
<BLANKLINE>
if __name__ == '__main__':
    paste.script.command.run()

CHANGES

0.5.3 (2010-02-08)

  • Fix: add z3c.recipe.paster egg for debugging if it’s not there to make sure it’s installed

0.5.2 (2010-01-28)

  • Fix: add PasteScript egg if it’s not there to make sure it’s installed

0.5.1 (2010-01-22)

  • Added debug, an interactive debug prompt.
  • Fixed tests and fix all eggs in test setup.
  • Fixed test normalizer.
  • Updated tests, so they work with current packages.
  • Fixed tests, so they run both an Windows-like and Unix-like OS.

0.5.0 (2009-02-22)

  • Initial Release
Release History

Release History

This version
History Node

0.5.3

History Node

0.5.2

History Node

0.5.1

History Node

0.5.0

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