Mercurial > kallithea
annotate rhodecode/lib/indexers/__init__.py @ 3197:b4f401524060 beta
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author | Mads Kiilerich <madski@unity3d.com> |
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date | Tue, 22 Jan 2013 23:44:38 +0100 |
parents | a08624dd675e |
children | a5f0bc867edc b76a595b7a5e |
rev | line source |
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1 # -*- coding: utf-8 -*- |
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2 """ |
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3 rhodecode.lib.indexers.__init__ |
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4 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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5 |
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6 Whoosh indexing module for RhodeCode |
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7 |
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8 :created_on: Aug 17, 2010 |
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9 :author: marcink |
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2012 copyrights
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10 :copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com> |
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11 :license: GPLv3, see COPYING for more details. |
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12 """ |
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13 # This program is free software: you can redistribute it and/or modify |
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14 # it under the terms of the GNU General Public License as published by |
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15 # the Free Software Foundation, either version 3 of the License, or |
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16 # (at your option) any later version. |
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17 # |
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18 # This program is distributed in the hope that it will be useful, |
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19 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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21 # GNU General Public License for more details. |
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22 # |
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23 # You should have received a copy of the GNU General Public License |
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24 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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25 import os |
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26 import sys |
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27 import traceback |
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28 import logging |
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29 from os.path import dirname as dn, join as jn |
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30 |
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31 #to get the rhodecode import |
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32 sys.path.append(dn(dn(dn(os.path.realpath(__file__))))) |
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33 |
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34 from string import strip |
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35 from shutil import rmtree |
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36 |
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37 from whoosh.analysis import RegexTokenizer, LowercaseFilter, StopFilter |
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38 from whoosh.fields import TEXT, ID, STORED, NUMERIC, BOOLEAN, Schema, FieldType, DATETIME |
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39 from whoosh.index import create_in, open_dir |
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40 from whoosh.formats import Characters |
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41 from whoosh.highlight import highlight, HtmlFormatter, ContextFragmenter |
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42 |
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43 from webhelpers.html.builder import escape, literal |
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44 from sqlalchemy import engine_from_config |
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45 |
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46 from rhodecode.model import init_model |
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47 from rhodecode.model.scm import ScmModel |
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48 from rhodecode.model.repo import RepoModel |
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49 from rhodecode.config.environment import load_environment |
2109 | 50 from rhodecode.lib.utils2 import LazyProperty |
51 from rhodecode.lib.utils import BasePasterCommand, Command, add_cache,\ | |
52 load_rcextensions | |
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53 |
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54 log = logging.getLogger(__name__) |
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55 |
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56 # CUSTOM ANALYZER wordsplit + lowercase filter |
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57 ANALYZER = RegexTokenizer(expression=r"\w+") | LowercaseFilter() |
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58 |
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59 #INDEX SCHEMA DEFINITION |
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60 SCHEMA = Schema( |
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61 fileid=ID(unique=True), |
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62 owner=TEXT(), |
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63 repository=TEXT(stored=True), |
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64 path=TEXT(stored=True), |
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65 content=FieldType(format=Characters(), analyzer=ANALYZER, |
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66 scorable=True, stored=True), |
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67 modtime=STORED(), |
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68 extension=TEXT(stored=True) |
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69 ) |
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70 |
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71 IDX_NAME = 'HG_INDEX' |
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72 FORMATTER = HtmlFormatter('span', between='\n<span class="break">...</span>\n') |
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73 FRAGMENTER = ContextFragmenter(200) |
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74 |
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75 CHGSETS_SCHEMA = Schema( |
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76 raw_id=ID(unique=True, stored=True), |
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77 date=NUMERIC(stored=True), |
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78 last=BOOLEAN(), |
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79 owner=TEXT(), |
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80 repository=ID(unique=True, stored=True), |
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81 author=TEXT(stored=True), |
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82 message=FieldType(format=Characters(), analyzer=ANALYZER, |
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83 scorable=True, stored=True), |
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84 parents=TEXT(), |
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85 added=TEXT(), |
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86 removed=TEXT(), |
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87 changed=TEXT(), |
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88 ) |
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89 |
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90 CHGSET_IDX_NAME = 'CHGSET_INDEX' |
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91 |
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92 # used only to generate queries in journal |
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93 JOURNAL_SCHEMA = Schema( |
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94 username=TEXT(), |
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95 date=DATETIME(), |
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96 action=TEXT(), |
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97 repository=TEXT(), |
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98 ip=TEXT(), |
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99 ) |
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100 |
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101 |
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102 class MakeIndex(BasePasterCommand): |
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103 |
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104 max_args = 1 |
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105 min_args = 1 |
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106 |
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107 usage = "CONFIG_FILE" |
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108 summary = "Creates index for full text search given configuration file" |
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109 group_name = "RhodeCode" |
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110 takes_config_file = -1 |
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111 parser = Command.standard_parser(verbose=True) |
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112 |
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113 def command(self): |
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114 logging.config.fileConfig(self.path_to_ini_file) |
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115 from pylons import config |
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116 add_cache(config) |
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117 engine = engine_from_config(config, 'sqlalchemy.db1.') |
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118 init_model(engine) |
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119 index_location = config['index_dir'] |
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120 repo_location = self.options.repo_location \ |
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121 if self.options.repo_location else RepoModel().repos_path |
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122 repo_list = map(strip, self.options.repo_list.split(',')) \ |
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123 if self.options.repo_list else None |
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124 repo_update_list = map(strip, self.options.repo_update_list.split(',')) \ |
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125 if self.options.repo_update_list else None |
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127 #====================================================================== |
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128 # WHOOSH DAEMON |
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129 #====================================================================== |
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130 from rhodecode.lib.pidlock import LockHeld, DaemonLock |
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131 from rhodecode.lib.indexers.daemon import WhooshIndexingDaemon |
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132 try: |
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133 l = DaemonLock(file_=jn(dn(dn(index_location)), 'make_index.lock')) |
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134 WhooshIndexingDaemon(index_location=index_location, |
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135 repo_location=repo_location, |
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136 repo_list=repo_list, |
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137 repo_update_list=repo_update_list)\ |
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138 .run(full_index=self.options.full_index) |
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139 l.release() |
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140 except LockHeld: |
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141 sys.exit(1) |
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142 |
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143 def update_parser(self): |
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144 self.parser.add_option('--repo-location', |
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145 action='store', |
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146 dest='repo_location', |
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147 help="Specifies repositories location to index OPTIONAL", |
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148 ) |
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149 self.parser.add_option('--index-only', |
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150 action='store', |
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151 dest='repo_list', |
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152 help="Specifies a comma separated list of repositores " |
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153 "to build index on. If not given all repositories " |
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154 "are scanned for indexing. OPTIONAL", |
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155 ) |
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156 self.parser.add_option('--update-only', |
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157 action='store', |
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158 dest='repo_update_list', |
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159 help="Specifies a comma separated list of repositores " |
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160 "to re-build index on. OPTIONAL", |
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161 ) |
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162 self.parser.add_option('-f', |
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163 action='store_true', |
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164 dest='full_index', |
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165 help="Specifies that index should be made full i.e" |
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166 " destroy old and build from scratch", |
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167 default=False) |
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168 |
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169 |
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170 class WhooshResultWrapper(object): |
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171 def __init__(self, search_type, searcher, matcher, highlight_items, |
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172 repo_location): |
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173 self.search_type = search_type |
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174 self.searcher = searcher |
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175 self.matcher = matcher |
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176 self.highlight_items = highlight_items |
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177 self.fragment_size = 200 |
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178 self.repo_location = repo_location |
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179 |
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180 @LazyProperty |
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181 def doc_ids(self): |
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182 docs_id = [] |
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183 while self.matcher.is_active(): |
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184 docnum = self.matcher.id() |
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185 chunks = [offsets for offsets in self.get_chunks()] |
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186 docs_id.append([docnum, chunks]) |
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187 self.matcher.next() |
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188 return docs_id |
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189 |
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190 def __str__(self): |
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191 return '<%s at %s>' % (self.__class__.__name__, len(self.doc_ids)) |
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192 |
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193 def __repr__(self): |
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194 return self.__str__() |
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195 |
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196 def __len__(self): |
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197 return len(self.doc_ids) |
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198 |
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199 def __iter__(self): |
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200 """ |
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201 Allows Iteration over results,and lazy generate content |
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202 |
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203 *Requires* implementation of ``__getitem__`` method. |
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204 """ |
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205 for docid in self.doc_ids: |
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206 yield self.get_full_content(docid) |
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207 |
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208 def __getitem__(self, key): |
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209 """ |
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210 Slicing of resultWrapper |
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211 """ |
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212 i, j = key.start, key.stop |
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213 |
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214 slices = [] |
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215 for docid in self.doc_ids[i:j]: |
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216 slices.append(self.get_full_content(docid)) |
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217 return slices |
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218 |
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219 def get_full_content(self, docid): |
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220 res = self.searcher.stored_fields(docid[0]) |
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221 log.debug('result: %s' % res) |
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222 if self.search_type == 'content': |
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223 full_repo_path = jn(self.repo_location, res['repository']) |
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224 f_path = res['path'].split(full_repo_path)[-1] |
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225 f_path = f_path.lstrip(os.sep) |
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226 content_short = self.get_short_content(res, docid[1]) |
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227 res.update({'content_short': content_short, |
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228 'content_short_hl': self.highlight(content_short), |
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229 'f_path': f_path |
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230 }) |
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231 elif self.search_type == 'path': |
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232 full_repo_path = jn(self.repo_location, res['repository']) |
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233 f_path = res['path'].split(full_repo_path)[-1] |
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234 f_path = f_path.lstrip(os.sep) |
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235 res.update({'f_path': f_path}) |
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236 elif self.search_type == 'message': |
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237 res.update({'message_hl': self.highlight(res['message'])}) |
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238 |
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239 log.debug('result: %s' % res) |
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240 |
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241 return res |
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242 |
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243 def get_short_content(self, res, chunks): |
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244 |
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245 return ''.join([res['content'][chunk[0]:chunk[1]] for chunk in chunks]) |
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246 |
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247 def get_chunks(self): |
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248 """ |
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249 Smart function that implements chunking the content |
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250 but not overlap chunks so it doesn't highlight the same |
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251 close occurrences twice. |
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252 |
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253 :param matcher: |
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254 :param size: |
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255 """ |
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256 memory = [(0, 0)] |
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257 if self.matcher.supports('positions'): |
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258 for span in self.matcher.spans(): |
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259 start = span.startchar or 0 |
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260 end = span.endchar or 0 |
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261 start_offseted = max(0, start - self.fragment_size) |
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262 end_offseted = end + self.fragment_size |
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263 |
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264 if start_offseted < memory[-1][1]: |
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265 start_offseted = memory[-1][1] |
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266 memory.append((start_offseted, end_offseted,)) |
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267 yield (start_offseted, end_offseted,) |
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268 |
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269 def highlight(self, content, top=5): |
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270 if self.search_type not in ['content', 'message']: |
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271 return '' |
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272 hl = highlight( |
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273 text=content, |
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274 terms=self.highlight_items, |
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275 analyzer=ANALYZER, |
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276 fragmenter=FRAGMENTER, |
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277 formatter=FORMATTER, |
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278 top=top |
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279 ) |
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280 return hl |