 | slapos.tool.rebootstrapA zc.buildout extension to solve chicken-and-egg problem of using python which is built by itselfextens... |
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slapos.tool.rebootstrap Description
A zc.buildout extension to solve chicken-and-egg problem of using python which is built by itselfextension The slapos.tool.rebootstrap package contains extensions for zc.buildout is created to solve chicken and egg problem while working with buildout and when some exact version of Python, which is provided by buildout shall be used to execute this buildout itself.Usage:Part to build python is required. By convention slapos.tool.rebootstrap will try to find python executable in: special.parts.directory/partname/bin/partnameBut when needed python-path parameter can be used to point rebootstrap to find python in: special.parts.directory/partname/python-pathAdd slapos.tool.rebootstrap to extensions and set rebooter-section to above section.Use whatever python to bootstrap and run buildout. If reboot will detect that sys.executable used to run buildout is different then executable provided in python section it will try to find this executable. If it does not exists it will install this section and then reinstall buildout using new python executable. Later buildout run will continue using new Python.Because external buildout is used to provide buildout version parameter is introduced to being able to upgrade not in place python part. This parameter is required and becomes part of suffix.Whenever developer-mode is set to true no cleanup will be done in case of failure. Then user is responsible to cleanup directories.Example profile and invocationextensions = slapos.tool.rebootstrapparts = realrunsection = slapospythonversion = 1recipe = plone.recipe.commandstop-on-error = truecommand = mkdir -p ${buildout:parts-directory}/${:__section_name__}/bin && cp -f /usr/bin/python ${:executable}recipe = plone.recipe.commandcommand = echo Running with python ${buildout:executable}update-command = ${:command}After bootstrapping and running this buildout it will print:Running with python /path/to/buildout/parts.rebootstrap.1/slapospython/bin/slapospythonRunning testsTest for this package can be run as simple as:python setup.py testPlease keep in mind that clean python environment is required -- the best one is provided by buildout or virtualenv WITHOUT site packages. Requirements: · Python What's New in This Release: · support extensions in rebootstrap phase · rename to slapos.tool.reboostrap from slapos.rebootstrap
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