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# encoding: utf-8
import os
try:
from airspeed import CachingFileLoader
except ImportError:
raise ImportError('You must install the airspeed package.')
from cachetools import LRUCache
__all__ = ['Airspeed']
class Airspeed(object):
"""The airspeed templating engine.
Sample usage:
>>> from cti.core import Engines
>>> render = Engines()
>>> render('airspeed:../tests/test.txt', dict())
('text/plain', 'Bingo!')
"""
def __init__(self, cache=10, **kw):
self.loaders = LRUCache(maxsize=cache)
def __call__(self, data, template, mime_type="text/plain", **options):
basepath = os.path.dirname(template)
if basepath not in self.loaders:
loader = CachingFileLoader(basepath)
self.loaders[basepath] = loader
else:
loader = self.loaders[basepath]
template = self.loaders[basepath].load_template(
os.path.basename(template))
return mime_type, template.merge(data, loader=loader)
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