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Viewing changes to hooks/charmhelpers/core/services/helpers.py

  • Committer: Gerrit Code Review
  • Author(s): Jenkins
  • Date: 2016-03-18 16:10:08 UTC
  • mfrom: (21.1.1 trunk)
  • Revision ID: review@openstack.org-20160318161008-grzlrlzei667shdd
Merge "Add support for Ubuntu Xenial"

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hooks/charmhelpers/core/services/helpers.py
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    :param str source: The template source file, relative to
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        `$CHARM_DIR/templates`
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    :param str target: The target to write the rendered template to
 
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    :param str target: The target to write the rendered template to (or None)
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    :param str owner: The owner of the rendered file
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    :param str group: The group of the rendered file
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    :param int perms: The permissions of the rendered file
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    :param partial on_change_action: functools partial to be executed when
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                                     rendered file changes
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    :param jinja2 loader template_loader: A jinja2 template loader
 
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    :return str: The rendered template
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    """
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    def __init__(self, source, target,
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                 owner='root', group='root', perms=0o444,
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        if self.on_change_action and os.path.isfile(self.target):
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            pre_checksum = host.file_hash(self.target)
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        service = manager.get_service(service_name)
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        context = {}
 
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        context = {'ctx': {}}
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        for ctx in service.get('required_data', []):
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            context.update(ctx)
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        templating.render(self.source, self.target, context,
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                          self.owner, self.group, self.perms,
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                          template_loader=self.template_loader)
 
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            context['ctx'].update(ctx)
 
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        result = templating.render(self.source, self.target, context,
 
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                                   self.owner, self.group, self.perms,
 
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                                   template_loader=self.template_loader)
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        if self.on_change_action:
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            if pre_checksum == host.file_hash(self.target):
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                hookenv.log(
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            else:
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                self.on_change_action()
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        return result
 
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# Convenience aliases for templates
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render_template = template = TemplateCallback