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annotate piecrust/data/assetor.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 dc78ade3f320
children 22c6f6a3d0a0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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f5ca5c5bed85 More Python 3 fixes, modularization, and new unit tests.
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1 import os
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2 import os.path
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3 import logging
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4 from piecrust import ASSET_DIR_SUFFIX
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5 from piecrust.uriutil import multi_replace
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8 logger = logging.getLogger(__name__)
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11 class UnsupportedAssetsError(Exception):
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12 pass
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43091c9837bf Fix problems with asset URLs.
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15 def build_base_url(app, uri, rel_assets_path):
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16 base_url_format = app.env.base_asset_url_format
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17 rel_assets_path = rel_assets_path.replace('\\', '/')
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19 # Remove any extension since we'll be copying assets into the 1st
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20 # sub-page's folder.
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21 pretty = app.config.get('site/pretty_urls')
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22 if not pretty:
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23 uri, _ = os.path.splitext(uri)
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25 base_url = multi_replace(
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26 base_url_format,
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27 {
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28 '%path%': rel_assets_path,
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29 '%uri%': uri})
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31 return base_url.rstrip('/') + '/'
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34 class Assetor(object):
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35 debug_render_doc = """Helps render URLs to files in the current page's
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36 asset folder."""
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37 debug_render = []
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38 debug_render_dynamic = ['_debugRenderAssetNames']
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39
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40 def __init__(self, page, uri):
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41 self._page = page
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42 self._uri = uri
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43 self._cache = None
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44
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45 def __getattr__(self, name):
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46 try:
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47 self._cacheAssets()
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48 return self._cache[name][0]
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49 except KeyError:
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50 raise AttributeError()
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51
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52 def __getitem__(self, key):
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53 self._cacheAssets()
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54 return self._cache[key][0]
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56 def __iter__(self):
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57 self._cacheAssets()
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58 return map(lambda i: i[0], self._cache.values())
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59
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60 def _getFilenames(self):
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61 assert self._cache is not None
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62 return map(lambda i: i[1], self._cache.values())
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63
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64 def _debugRenderAssetNames(self):
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65 self._cacheAssets()
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66 return list(self._cache.keys())
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67
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68 def _cacheAssets(self):
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69 if self._cache is not None:
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70 return
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71
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72 self._cache = {}
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73 name, ext = os.path.splitext(self._page.path)
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74 assets_dir = name + ASSET_DIR_SUFFIX
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75 if not os.path.isdir(assets_dir):
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76 return
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77
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78 rel_assets_dir = os.path.relpath(assets_dir, self._page.app.root_dir)
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79 base_url = build_base_url(self._page.app, self._uri, rel_assets_dir)
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80 for fn in os.listdir(assets_dir):
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81 full_fn = os.path.join(assets_dir, fn)
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82 if not os.path.isfile(full_fn):
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83 raise Exception("Skipping: %s" % full_fn)
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84 continue
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86 name, ext = os.path.splitext(fn)
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87 if name in self._cache:
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88 raise UnsupportedAssetsError(
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89 "Multiple asset files are named '%s'." % name)
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90 self._cache[name] = (base_url + fn, full_fn)
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91
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92 cpi = self._page.app.env.exec_info_stack.current_page_info
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93 if cpi is not None:
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94 cpi.render_ctx.current_pass_info.used_assets = True
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95