Mercurial > piecrust2

annotate piecrust/data/providersdata.py @ 550:6f216c1ab6b1

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bake: Add a flag to know which record entries got collapsed from last run. This makes it possible to find entries for things that were actually baked during the current run, as opposed to skipped because they were "clean".
author Ludovic Chabant <ludovic@chabant.com>
date Tue, 04 Aug 2015 21:22:30 -0700
parents 32c7c2d219d2
children aca04e175488
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1 import re
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2 import collections.abc
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3
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5 re_endpoint_sep = re.compile(r'[\/\.]')
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8 class DataProvidersData(collections.abc.Mapping):
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9 def __init__(self, page):
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10 self._page = page
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11 self._dict = None
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12
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13 def __getitem__(self, name):
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14 self._load()
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15 return self._dict[name]
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16
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17 def __iter__(self):
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18 self._load()
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19 return iter(self._dict)
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20
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21 def __len__(self):
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22 self._load()
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23 return len(self._dict)
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24
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25 def _load(self):
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26 if self._dict is not None:
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27 return
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28
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29 self._dict = {}
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30 for source in self._page.app.sources:
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31 endpoint_bits = re_endpoint_sep.split(source.data_endpoint)
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32 endpoint = self._dict
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33 for e in endpoint_bits[:-1]:
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34 if e not in endpoint:
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35 endpoint[e] = {}
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36 endpoint = endpoint[e]
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37 override = endpoint.get(endpoint_bits[-1])
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38 provider = source.buildDataProvider(self._page, override)
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39 endpoint[endpoint_bits[-1]] = provider