Mercurial Hosting > luan
annotate src/luan/modules/lucene/Lucene.luan @ 1556:52241b69c339
lucene logging
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Sun, 11 Oct 2020 17:28:16 -0600 |
parents | 736ec76bbf42 |
children | 44e444a8da64 |
rev | line source |
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1 require "java" |
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2 local Luan = require "luan:Luan.luan" |
503 | 3 local error = Luan.error |
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4 local ipairs = Luan.ipairs or error() |
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5 local pairs = Luan.pairs or error() |
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6 local type = Luan.type or error() |
796 | 7 local set_metatable = Luan.set_metatable or error() |
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8 local Boot = require "luan:Boot.luan" |
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9 local Html = require "luan:Html.luan" |
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10 local Number = require "luan:Number.luan" |
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11 local integer = Number.integer or error() |
1548 | 12 local Time = require "luan:Time.luan" |
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13 local Io = require "luan:Io.luan" |
746 | 14 local uri = Io.uri or error() |
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15 local String = require "luan:String.luan" |
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16 local matches = String.matches or error() |
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17 local Rpc = require "luan:Rpc.luan" |
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18 local LuceneIndex = require "java:luan.modules.lucene.LuceneIndex" |
1458 | 19 local NumberFieldParser = require "java:goodjava.lucene.queryparser.NumberFieldParser" |
1459 | 20 local GoodQueryParser = require "java:goodjava.lucene.queryparser.GoodQueryParser" |
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21 local Logging = require "luan:logging/Logging.luan" |
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22 local logger = Logging.logger "Lucene" |
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23 |
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24 |
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25 local Lucene = {} |
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26 |
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27 Lucene.type = { |
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28 english = LuceneIndex.ENGLISH_FIELD_PARSER |
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29 string = LuceneIndex.STRING_FIELD_PARSER |
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30 lowercase = LuceneIndex.LOWERCASE_FIELD_PARSER |
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31 integer = NumberFieldParser.INT |
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32 long = NumberFieldParser.LONG |
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33 double = NumberFieldParser.DOUBLE |
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34 } |
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35 |
1459 | 36 Lucene.quote = GoodQueryParser.quote |
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37 |
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38 local function get_file(f,name) |
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39 type(f)=="table" or error(name.." must be table") |
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40 f.to_uri_string and matches(f.to_uri_string(),"^file:") or error(name.." must be file") |
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41 return f.java.file or error() |
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42 end |
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43 |
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44 function Lucene.index(index_dir,options) |
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45 local index = {} |
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46 index.dir = index_dir |
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47 index_dir = get_file(index_dir) |
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48 options = options or {} |
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49 options.log_dir = options.log_dir and get_file(options.log_dir) |
1548 | 50 options.log_time = options.log_time or Time.period{days=30} |
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51 local java_index = LuceneIndex.getLuceneIndex(index_dir,options) |
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52 index.java = java_index |
796 | 53 |
54 index.indexed_fields = {} | |
55 local mt = {} | |
56 set_metatable(index.indexed_fields,mt) | |
57 function mt.__index(_,key) | |
58 return java_index.getIndexedFieldParser(key) | |
59 end | |
60 function mt.__new_index(_,key,value) | |
61 return java_index.setIndexedFieldParser(key,value) | |
62 end | |
618
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63 |
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64 index.to_string = java_index.to_string |
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65 index.snapshot = java_index.snapshot |
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66 index.advanced_search = java_index.advanced_search |
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67 index.search_in_transaction = java_index.search_in_transaction |
1534 | 68 index.delete_all = java_index.delete_all |
69 index.delete = java_index.delete | |
1535 | 70 index.reindex = java_index.reindex |
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71 --index.save = java_index.save |
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72 index.is_in_transaction = java_index.is_in_transaction |
1379 | 73 index.run_in_transaction = java_index.run_in_transaction |
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74 index.ensure_open = java_index.ensure_open |
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75 index.highlighter = java_index.highlighter |
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76 index.count_tokens = java_index.count_tokens |
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77 index.tag = java_index.tag |
709 | 78 |
1556 | 79 index.relog = java_index.relog |
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80 index.restore_from_log = java_index.restore_from_log |
1556 | 81 index.force_restore_from_log = java_index.force_restore_from_log |
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82 |
1453 | 83 index.has_postgres_backup = java_index.hasPostgresBackup() |
84 index.rebuild_postgres_backup = java_index.rebuild_postgres_backup | |
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85 index.restore_from_postgres = java_index.restore_from_postgres |
1556 | 86 index.force_restore_from_postgres = java_index.force_restore_from_postgres |
1453 | 87 index.check = java_index.check |
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88 |
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89 function index.not_in_transaction() end |
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90 |
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91 function index.check_in_transaction() |
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92 if not index.is_in_transaction() then |
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93 index.not_in_transaction() |
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94 end |
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95 end |
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96 |
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97 function index.save(doc) |
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98 index.check_in_transaction() |
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99 java_index.save(doc) |
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100 end |
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101 |
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102 function index.search( query, from, to, options ) |
770 | 103 from or error "missing 'from' parameter" |
104 to or error "missing 'to' parameter" | |
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105 options = options or {} |
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106 local explain_fld = options.explain |
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107 local score_fld = options.score |
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108 local results = {} |
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109 local function fn(i,doc_fn,score) |
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110 if i >= from then |
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111 local doc |
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112 if explain_fld == nil then |
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113 doc = doc_fn() |
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114 else |
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115 local explanation |
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116 doc, explanation = doc_fn("explain") |
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117 doc[explain_fld] = explanation.toString() |
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118 end |
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119 if score_fld ~= nil then |
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120 doc[score_fld] = score |
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121 end |
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122 results[#results+1] = doc |
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123 end |
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124 end |
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125 local total_hits = index.advanced_search(query,fn,to,options.sort) |
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126 return results, total_hits |
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127 end |
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128 |
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129 function index.get_document(query) |
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130 local doc |
1348 | 131 local function fn(_,doc_fn,_) |
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132 doc = doc_fn() |
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133 end |
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134 local total_hits = index.advanced_search(query,fn,1) |
1457 | 135 total_hits <= 1 or error("found "..total_hits.." documents for query: "..query) |
257
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136 return doc |
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137 end |
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138 |
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139 function index.count(query) |
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140 return index.advanced_search(query) |
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141 end |
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142 |
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143 function index.html_highlighter(query,formatter,container_tags) |
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144 local highlighter = index.highlighter(query,formatter) |
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145 return function(html) |
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146 local list = Html.parse(html,container_tags) |
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147 local result = {} |
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148 for _, obj in ipairs(list) do |
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149 if type(obj) == "string" then |
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150 obj = highlighter(obj) |
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151 end |
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152 result[#result+1] = obj |
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153 end |
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154 return Html.to_string(result) |
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155 end |
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156 end |
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157 |
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158 function index.zip(zip_file) |
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159 index.snapshot( function(dir_path,file_names) |
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160 zip_file.delete() |
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161 local zip_path = zip_file.canonical().to_string() |
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162 local dir = uri("file:"..dir_path) |
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163 local dir_name = dir.name() |
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164 local options = {dir=dir.parent()} |
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165 for _, file_name in ipairs(file_names) do |
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166 local cmd = "zip "..zip_path.." "..dir_name.."/"..file_name |
1431 | 167 uri("os:"..cmd,options).read_text() |
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168 end |
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169 end ) |
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170 end |
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171 index.zip = Boot.no_security(index.zip) |
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172 |
754 | 173 function index.restore(zip_file) |
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174 java_index.run_in_lock( function() |
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175 local lucene_dir = index.dir |
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176 local before_restore = lucene_dir.parent().child("before_restore.zip") |
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177 index.zip(before_restore) |
1398 | 178 java_index.close() |
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179 lucene_dir.delete() |
1431 | 180 uri("os:unzip "..zip_file.canonical().to_string(),{dir=lucene_dir.parent()}).read_text() |
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181 java_index.reopen() |
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182 end ) |
754 | 183 end |
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184 index.restore = Boot.no_security(index.restore) |
754 | 185 |
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186 function index.update(steps) |
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187 local version = 0 |
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188 for i in pairs(steps) do |
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189 if version < i then |
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190 version = i |
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191 end |
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192 end |
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193 local doc = index.get_document"type:version" or { type="version", version=integer(0) } |
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194 while doc.version < version do |
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195 doc.version = integer(doc.version + 1) |
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196 logger.error("step "..doc.version) |
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197 index.run_in_transaction( function() |
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198 local step = steps[doc.version] or error("missing step "..doc.version) |
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199 step() |
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200 index.save(doc) |
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201 end ) |
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202 end |
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203 end |
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204 |
754 | 205 local function multi_error() |
206 error "multiple lucene instances" | |
207 end | |
208 | |
1133 | 209 if Rpc.functions.lucene_backup == nil then |
754 | 210 |
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211 function Rpc.functions.lucene_backup(password) |
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213 local zip_file = index.dir.parent().child("backup.zip") |
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214 index.zip(zip_file) |
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215 return zip_file |
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216 end |
754 | 217 |
218 function Rpc.functions.lucene_restore(password,zip_file) | |
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220 local backup_zip = index.dir.parent().child("backup.zip") |
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221 backup_zip.write(zip_file) |
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222 index.restore(backup_zip) |
754 | 223 end |
224 | |
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225 else |
754 | 226 Rpc.functions.lucene_backup = multi_error |
227 Rpc.functions.lucene_restore = multi_error | |
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228 end |
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229 |
230
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230 return index |
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231 end |
503 | 232 |
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233 return Lucene |