Mercurial > piecrust2

annotate piecrust/environment.py @ 975:a0a62d0da723

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author Ludovic Chabant <ludovic@chabant.com>
date Tue, 17 Oct 2017 01:08:56 -0700
parents 08e02c2a2a1a
children 1857dbd4580f
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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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6 logger = logging.getLogger(__name__)
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9 class ExecutionStats:
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10 def __init__(self):
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11 self.timers = {}
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12 self.counters = {}
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13 self.manifests = {}
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14
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15 def registerTimer(self, category, *,
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16 raise_if_registered=True, time=0):
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17 if raise_if_registered and category in self.timers:
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18 raise Exception("Timer '%s' has already been registered." %
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19 category)
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20 self.timers[category] = time
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21
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22 @contextlib.contextmanager
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23 def timerScope(self, category):
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24 start = time.perf_counter()
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25 yield
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26 self.timers[category] += time.perf_counter() - start
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27
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28 def stepTimer(self, category, value):
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29 self.timers[category] += value
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30
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31 def stepTimerSince(self, category, since):
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32 self.stepTimer(category, time.perf_counter() - since)
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33
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34 def registerCounter(self, category, *, raise_if_registered=True):
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35 if raise_if_registered and category in self.counters:
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36 raise Exception("Counter '%s' has already been registered." %
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37 category)
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38 self.counters[category] = 0
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39
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40 def stepCounter(self, category, inc=1):
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41 self.counters[category] += inc
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42
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43 def registerManifest(self, name, *, raise_if_registered=True):
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44 if raise_if_registered and name in self.manifests:
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45 raise Exception("Manifest '%s' has already been registered." %
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46 name)
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47 self.manifests[name] = []
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48
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49 def addManifestEntry(self, name, entry):
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50 self.manifests[name].append(entry)
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51
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52 def mergeStats(self, other):
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53 for oc, ov in other.timers.items():
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54 v = self.timers.setdefault(oc, 0)
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55 self.timers[oc] = v + ov
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56 for oc, ov in other.counters.items():
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57 v = self.counters.setdefault(oc, 0)
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58 self.counters[oc] = v + ov
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59 for oc, ov in other.manifests.items():
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60 v = self.manifests.setdefault(oc, [])
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61 self.manifests[oc] = v + ov
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63
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64 class Environment:
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65 def __init__(self):
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66 from piecrust.cache import MemCache
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67 from piecrust.rendering import RenderingContextStack
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68
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69 self.app = None
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70 self.start_time = None
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71 self.was_cache_cleaned = False
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72 self.page_repository = MemCache()
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73 self.rendered_segments_repository = MemCache()
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74 self.render_ctx_stack = RenderingContextStack()
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75 self.fs_cache_only_for_main_page = False
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76 self.abort_source_use = False
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77 self._stats = ExecutionStats()
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78
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79 @property
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80 def stats(self):
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81 return self._stats
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82
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83 def initialize(self, app):
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84 self.app = app
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85 self.start_time = time.perf_counter()
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87 self.rendered_segments_repository.fs_cache = \
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88 app.cache.getCache('renders')
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89
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90 def _mergeCacheStats(self):
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91 repos = [
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92 ('RenderedSegmentsRepo', self.rendered_segments_repository),
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93 ('PagesRepo', self.page_repository)]
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94 for name, repo in repos:
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95 self._stats.counters['%s_hit' % name] = repo._hits
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96 self._stats.counters['%s_miss' % name] = repo._misses
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97 self._stats.manifests['%s_missedKeys' % name] = \
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98 list(repo._missed_keys)
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99
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101 class StandardEnvironment(Environment):
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102 def __init__(self):
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103 super(StandardEnvironment, self).__init__()
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104