Mercurial > kallithea
annotate pylons_app/lib/indexers/__init__.py @ 483:a9e50dce3081 celery
Removed config names from whoosh and celery,
celery is now configured based on the config name it's using
on celeryconfig. And whoosh uses it's own logger configured just for whoosh
Test creates a fresh whoosh index now, for more accurate checks
fixed tests for searching
author | Marcin Kuzminski <marcin@python-works.com> |
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date | Fri, 17 Sep 2010 22:54:30 +0200 |
parents | 149940ba96d9 |
children | fb0c3af6031b |
rev | line source |
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1 from os.path import dirname as dn, join as jn |
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2 from pidlock import LockHeld, DaemonLock |
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3 from pylons_app.config.environment import load_environment |
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4 from pylons_app.model.hg_model import HgModel |
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5 from shutil import rmtree |
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6 from webhelpers.html.builder import escape |
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7 from vcs.utils.lazy import LazyProperty |
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8 |
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9 from whoosh.analysis import RegexTokenizer, LowercaseFilter, StopFilter |
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10 from whoosh.fields import TEXT, ID, STORED, Schema, FieldType |
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11 from whoosh.index import create_in, open_dir |
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12 from whoosh.formats import Characters |
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13 from whoosh.highlight import highlight, SimpleFragmenter, HtmlFormatter |
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14 |
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15 import os |
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16 import sys |
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17 import traceback |
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18 |
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19 #to get the pylons_app import |
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20 sys.path.append(dn(dn(dn(os.path.realpath(__file__))))) |
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21 |
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22 |
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23 #LOCATION WE KEEP THE INDEX |
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24 IDX_LOCATION = jn(dn(dn(dn(dn(os.path.abspath(__file__))))), 'data', 'index') |
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25 |
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26 #EXTENSIONS WE WANT TO INDEX CONTENT OFF |
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27 INDEX_EXTENSIONS = ['action', 'adp', 'ashx', 'asmx', 'aspx', 'asx', 'axd', 'c', |
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28 'cfg', 'cfm', 'cpp', 'cs', 'css', 'diff', 'do', 'el', 'erl', |
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29 'h', 'htm', 'html', 'ini', 'java', 'js', 'jsp', 'jspx', 'lisp', |
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30 'lua', 'm', 'mako', 'ml', 'pas', 'patch', 'php', 'php3', |
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31 'php4', 'phtml', 'pm', 'py', 'rb', 'rst', 's', 'sh', 'sql', |
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32 'tpl', 'txt', 'vim', 'wss', 'xhtml', 'xml', 'xsl', 'xslt', |
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33 'yaws'] |
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34 |
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35 #CUSTOM ANALYZER wordsplit + lowercase filter |
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36 ANALYZER = RegexTokenizer(expression=r"\w+") | LowercaseFilter() |
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37 |
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38 |
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39 #INDEX SCHEMA DEFINITION |
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40 SCHEMA = Schema(owner=TEXT(), |
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41 repository=TEXT(stored=True), |
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42 path=ID(stored=True, unique=True), |
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43 content=FieldType(format=Characters(ANALYZER), |
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44 scorable=True, stored=True), |
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45 modtime=STORED(), extension=TEXT(stored=True)) |
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46 |
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47 |
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48 IDX_NAME = 'HG_INDEX' |
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49 FORMATTER = HtmlFormatter('span', between='\n<span class="break">...</span>\n') |
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50 FRAGMENTER = SimpleFragmenter(200) |
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51 |
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52 class ResultWrapper(object): |
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53 def __init__(self, searcher, matcher, highlight_items): |
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54 self.searcher = searcher |
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55 self.matcher = matcher |
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56 self.highlight_items = highlight_items |
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57 self.fragment_size = 200 / 2 |
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58 |
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59 @LazyProperty |
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60 def doc_ids(self): |
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61 docs_id = [] |
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62 while self.matcher.is_active(): |
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63 docnum = self.matcher.id() |
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64 chunks = [offsets for offsets in self.get_chunks()] |
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65 docs_id.append([docnum, chunks]) |
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66 self.matcher.next() |
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67 return docs_id |
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68 |
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69 def __str__(self): |
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70 return '<%s at %s>' % (self.__class__.__name__, len(self.doc_ids)) |
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71 |
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72 def __repr__(self): |
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73 return self.__str__() |
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74 |
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75 def __len__(self): |
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76 return len(self.doc_ids) |
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77 |
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78 def __iter__(self): |
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79 """ |
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80 Allows Iteration over results,and lazy generate content |
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81 |
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82 *Requires* implementation of ``__getitem__`` method. |
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83 """ |
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84 for docid in self.doc_ids: |
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85 yield self.get_full_content(docid) |
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86 |
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87 def __getslice__(self, i, j): |
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88 """ |
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89 Slicing of resultWrapper |
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90 """ |
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91 slice = [] |
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92 for docid in self.doc_ids[i:j]: |
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93 slice.append(self.get_full_content(docid)) |
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94 return slice |
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95 |
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96 |
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97 def get_full_content(self, docid): |
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98 res = self.searcher.stored_fields(docid[0]) |
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99 f_path = res['path'][res['path'].find(res['repository']) \ |
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100 + len(res['repository']):].lstrip('/') |
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101 |
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102 content_short = self.get_short_content(res, docid[1]) |
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103 res.update({'content_short':content_short, |
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104 'content_short_hl':self.highlight(content_short), |
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105 'f_path':f_path}) |
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106 |
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107 return res |
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108 |
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109 def get_short_content(self, res, chunks): |
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110 |
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111 return ''.join([res['content'][chunk[0]:chunk[1]] for chunk in chunks]) |
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112 |
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113 def get_chunks(self): |
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114 """ |
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115 Smart function that implements chunking the content |
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116 but not overlap chunks so it doesn't highlight the same |
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117 close occurences twice. |
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118 @param matcher: |
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119 @param size: |
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120 """ |
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121 memory = [(0, 0)] |
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122 for span in self.matcher.spans(): |
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123 start = span.startchar or 0 |
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124 end = span.endchar or 0 |
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125 start_offseted = max(0, start - self.fragment_size) |
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126 end_offseted = end + self.fragment_size |
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127 |
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128 if start_offseted < memory[-1][1]: |
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129 start_offseted = memory[-1][1] |
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130 memory.append((start_offseted, end_offseted,)) |
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131 yield (start_offseted, end_offseted,) |
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132 |
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133 def highlight(self, content, top=5): |
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134 hl = highlight(escape(content), |
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135 self.highlight_items, |
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136 analyzer=ANALYZER, |
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137 fragmenter=FRAGMENTER, |
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138 formatter=FORMATTER, |
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139 top=top) |
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140 return hl |