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annotate piecrust/importing/piecrust.py @ 1188:a7c43131d871

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bake: Fix file write flushing problem with Python 3.8+ Writing the cache files fails in Python 3.8 because it looks like flushing behaviour has changed. We need to explicitly flush. And even then, in very rare occurrences, it looks like it can still run into racing conditions, so we do a very hacky and ugly "retry" loop when fetching cached data :(
author Ludovic Chabant <ludovic@chabant.com>
date Tue, 15 Jun 2021 22:36:23 -0700
parents 727110ea112a
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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52e4d9a1f917 Simple importer for PieCrust 1 websites.
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1 import os
52e4d9a1f917 Simple importer for PieCrust 1 websites.
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2 import os.path
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3 import re
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4 import shutil
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5 import logging
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6 import yaml
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7 from piecrust.importing.base import FileWalkingImporter
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8
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9
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10 logger = logging.getLogger(__name__)
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11
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12
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13 class PieCrust1Importer(FileWalkingImporter):
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14 name = 'piecrust1'
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15 description = "Imports content from a PieCrust 1 website."
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16 requires_website = False
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17
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18 def setupParser(self, parser, app):
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19 super(PieCrust1Importer, self).setupParser(parser, app)
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20 parser.add_argument('root_dir', nargs='?',
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52e4d9a1f917 Simple importer for PieCrust 1 websites.
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21 help="The root directory of the PieCrust 1 website.")
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22 parser.add_argument('--upgrade', action='store_true',
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23 help="Upgrade the current website in place.")
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24
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25 def importWebsite(self, app, args):
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26 if args.root_dir and args.upgrade:
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27 raise Exception("Can't specifiy both a root directory and `--upgrade`.")
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28 if args.root_dir is None and not args.upgrade:
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29 raise Exception("Need to specify either a root directory or `--upgrade`.")
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30
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31 if app.root_dir is None and not args.upgrade:
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32 raise Exception("Need to run the import from inside a PieCrust 2 "
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33 "website. Use `--upgrade` to upgrade from inside "
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34 "a PieCrust 1 website.")
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35 if app.root_dir is not None and args.upgrade:
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36 raise Exception("Already in a PieCrust 2 website. Specify the "
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37 "PieCrust 1 website to import from.")
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38
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39 src_root_dir = os.getcwd() if args.upgrade else args.root_dir
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40 out_root_dir = src_root_dir if args.upgrade else app.root_dir
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41 logger.debug("Importing PieCrust 1 site from: %s" % src_root_dir)
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42 exclude = args.exclude or []
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43 exclude += ['_cache', '_counter']
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44 self._startWalk(src_root_dir, exclude, out_root_dir, args.upgrade)
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45 if args.upgrade:
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46 self._cleanEmptyDirectories(src_root_dir)
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47 logger.info("The PieCrust website was successfully imported.")
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48
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49 def _importFile(self, full_fn, rel_fn, out_root_dir, is_move):
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50 logger.debug("- %s" % rel_fn)
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51 dest_path = rel_fn
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52 convert_func = None
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53 if rel_fn.replace('\\', '/') == '_content/config.yml':
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54 dest_path = 'config.yml'
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55 convert_func = self.convertConfig
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56 elif rel_fn.startswith('_content'):
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57 dest_path = rel_fn[len('_content/'):]
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58 fn_dirname = os.path.dirname(rel_fn)
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59 if not fn_dirname.endswith('-assets'):
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60 convert_func = self.convertPage
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61 else:
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62 dest_path = 'assets/' + rel_fn
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63
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64 logger.debug(" %s -> %s" % (rel_fn, dest_path))
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65 full_dest_path = os.path.join(out_root_dir, dest_path)
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66 os.makedirs(os.path.dirname(full_dest_path), 0o755, True)
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67 if convert_func is None:
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68 if is_move:
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69 shutil.move(full_fn, full_dest_path)
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70 else:
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71 shutil.copy2(full_fn, full_dest_path)
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72 else:
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73 with open(full_fn, 'r', encoding='utf8') as fp:
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74 content = fp.read()
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75 converted_content = convert_func(content)
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76 with open(full_dest_path, 'w', encoding='utf8') as fp:
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77 fp.write(converted_content)
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78 if converted_content != content:
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79 logger.warning("'%s' has been modified. The original version "
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80 "has been kept for reference." % rel_fn)
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81 shutil.copy2(full_fn, full_dest_path + '.orig')
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82 if is_move:
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83 os.remove(full_fn)
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84
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85 def _cleanEmptyDirectories(self, root_dir):
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86 for item in os.listdir(root_dir):
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87 if not os.path.isdir(item):
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88 continue
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89
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90 file_count = 0
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91 item_path = os.path.join(root_dir, item)
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92 for _, __, filenames in os.walk(item_path):
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93 file_count += len(filenames)
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94 if file_count == 0:
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95 logger.debug("Deleting empty directory: %s" % item)
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96 shutil.rmtree(item_path)
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97
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98 def convertConfig(self, content):
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99 config = yaml.safe_load(content)
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100 sitec = config.setdefault('site', {})
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101 if 'templates_dirs' in sitec:
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102 tdc = sitec['templates_dirs']
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103 cl = len('_content/')
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104 if isinstance(tdc, str) and re.match(r'^_content[/\\]', tdc):
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105 sitec['templates_dirs'] = tdc[cl:]
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106 elif isinstance(tdc, list):
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107 sitec['templates_dirs'] = list(map(
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108 lambda d: d[cl:] if re.match(r'^_content[/\\]', d) else d,
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109 tdc))
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110
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111 jinjac = config.setdefault('jinja', {})
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112 jinjac['twig_compatibility'] = True
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113
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114 if 'baker' in config:
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115 if 'skip_patterns' in config['baker']:
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116 config['baker']['ignore'] = config['baker']['skip_patterns']
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117 del config['baker']['skip_patterns']
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118 if 'force_patterns' in config['baker']:
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119 config['baker']['force'] = config['baker']['force_patterns']
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120 del config['baker']['force_patterns']
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121
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122 content = yaml.dump(config, default_flow_style=False,
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123 allow_unicode=True)
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52e4d9a1f917 Simple importer for PieCrust 1 websites.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
124 return content
52e4d9a1f917 Simple importer for PieCrust 1 websites.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
125
52e4d9a1f917 Simple importer for PieCrust 1 websites.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
126 def convertPage(self, content):
52e4d9a1f917 Simple importer for PieCrust 1 websites.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
127 return content
52e4d9a1f917 Simple importer for PieCrust 1 websites.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
128