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""" The CfgJinja2Generator allows you to use the `Jinja2
<http://jinja.pocoo.org/>`_ templating system to generate
:ref:`server-plugins-generators-cfg` files. """
from Bcfg2.Server.Plugin import PluginExecutionError
from Bcfg2.Server.Plugins.Cfg import CfgGenerator, SETUP
try:
from jinja2 import Template
HAS_JINJA2 = True
except ImportError:
HAS_JINJA2 = False
class CfgJinja2Generator(CfgGenerator):
""" The CfgJinja2Generator allows you to use the `Jinja2
<http://jinja.pocoo.org/>`_ templating system to generate
:ref:`server-plugins-generators-cfg` files. """
#: Handle .jinja2 files
__extensions__ = ['jinja2']
#: Low priority to avoid matching host- or group-specific
#: .crypt.jinja2 files
__priority__ = 50
def __init__(self, fname, spec, encoding):
CfgGenerator.__init__(self, fname, spec, encoding)
if not HAS_JINJA2:
raise PluginExecutionError("Jinja2 is not available")
__init__.__doc__ = CfgGenerator.__init__.__doc__
def get_data(self, entry, metadata):
template = Template(self.data.decode(self.encoding))
name = entry.get('realname', entry.get('name'))
return template.render(metadata=metadata, name=name, path=name,
source_path=name, repo=SETUP['repo'])
get_data.__doc__ = CfgGenerator.get_data.__doc__
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