Mercurial > piecrust2

annotate piecrust/environment.py @ 452:55026b7bb1bf

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tests: Fix Jinja2 test. Looks like Jinja is stripping rendered output, so now that we actually skip Jinja altogether when there's no `{` in the string, we need to adjust the tests.
author Ludovic Chabant <ludovic@chabant.com>
date Tue, 07 Jul 2015 19:58:07 -0700
parents 3b658190c02b
children cb3446be44b7
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1 import time
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2 import logging
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3 import contextlib
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4 from piecrust.cache import MemCache
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7 logger = logging.getLogger(__name__)
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10 class ExecutionInfo(object):
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11 def __init__(self, page, render_ctx):
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12 self.page = page
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13 self.render_ctx = render_ctx
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14 self.was_cache_valid = False
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15 self.start_time = time.perf_counter()
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17
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18 class ExecutionInfoStack(object):
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19 def __init__(self):
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20 self._page_stack = []
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22 @property
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23 def current_page_info(self):
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24 if len(self._page_stack) == 0:
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25 return None
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26 return self._page_stack[-1]
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28 @property
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29 def is_main_page(self):
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30 return len(self._page_stack) == 1
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31
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32 def hasPage(self, page):
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33 for ei in self._page_stack:
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34 if ei.page == page:
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35 return True
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36 return False
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37
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38 def pushPage(self, page, render_ctx):
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39 if len(self._page_stack) > 0:
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40 top = self._page_stack[-1]
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41 assert top.page is not page
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42 self._page_stack.append(ExecutionInfo(page, render_ctx))
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43
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44 def popPage(self):
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45 del self._page_stack[-1]
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47 def clear(self):
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48 self._page_stack = []
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49
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50
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51 class Environment(object):
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52 def __init__(self):
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53 self.app = None
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54 self.start_time = None
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55 self.exec_info_stack = ExecutionInfoStack()
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56 self.was_cache_cleaned = False
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57 self.base_asset_url_format = '%uri%'
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58 self.page_repository = MemCache()
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59 self.rendered_segments_repository = MemCache()
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60 self.fs_caches = {
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61 'renders': self.rendered_segments_repository}
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62 self.fs_cache_only_for_main_page = False
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63 self._default_layout_extensions = None
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64 self._timers = {}
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66 @property
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67 def default_layout_extensions(self):
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68 if self._default_layout_extensions is not None:
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69 return self._default_layout_extensions
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70
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71 if self.app is None:
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72 raise Exception("This environment has not been initialized yet.")
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73
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74 from piecrust.rendering import get_template_engine
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75 dte = get_template_engine(self.app, None)
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76 self._default_layout_extensions = ['.' + e.lstrip('.')
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77 for e in dte.EXTENSIONS]
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78 return self._default_layout_extensions
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79
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80 def initialize(self, app):
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81 self.app = app
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82 self.start_time = time.perf_counter()
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83 self.exec_info_stack.clear()
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84 self.was_cache_cleaned = False
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85 self.base_asset_url_format = '%uri%'
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86
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87 self._onSubCacheDirChanged(app)
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89 def registerTimer(self, category, *, raise_if_registered=True):
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90 if raise_if_registered and category in self._timers:
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91 raise Exception("Timer '%s' has already been registered." %
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92 category)
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93 self._timers[category] = 0
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94
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95 @contextlib.contextmanager
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96 def timerScope(self, category):
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97 start = time.perf_counter()
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98 yield
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99 self._timers[category] += time.perf_counter() - start
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100
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101 def stepTimer(self, category, value):
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102 self._timers[category] += value
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103
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104 def stepTimerSince(self, category, since):
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105 self.stepTimer(category, time.perf_counter() - since)
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107 def _onSubCacheDirChanged(self, app):
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108 for name, repo in self.fs_caches.items():
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109 cache = app.cache.getCache(name)
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110 repo.fs_cache = cache
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113 class StandardEnvironment(Environment):
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114 def __init__(self):
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115 super(StandardEnvironment, self).__init__()
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116