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vocabularyindexer.h

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00001 #ifndef EPT_DEBTAGS_VOCABULARYINDEXER_H
00002 #define EPT_DEBTAGS_VOCABULARYINDEXER_H
00003 
00009 /*
00010  * Copyright (C) 2003,2004,2005,2006,2007  Enrico Zini <enrico@debian.org>
00011  *
00012  * This program is free software; you can redistribute it and/or modify
00013  * it under the terms of the GNU General Public License as published by
00014  * the Free Software Foundation; either version 2 of the License, or
00015  * (at your option) any later version.
00016  *
00017  * This program is distributed in the hope that it will be useful,
00018  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00019  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00020  * GNU General Public License for more details.
00021  *
00022  * You should have received a copy of the GNU General Public License
00023  * along with this program; if not, write to the Free Software
00024  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00025  */
00026 
00027 #include <ept/debtags/maint/sourcedir.h>
00028 #include <string>
00029 
00030 namespace ept {
00031 namespace debtags {
00032 
00036 struct VocabularyIndexer
00037 {
00038     SourceDir mainSource;
00039     SourceDir userSource;
00040     time_t ts_main_src;
00041     time_t ts_user_src;
00042     time_t ts_main_voc;
00043     time_t ts_main_idx;
00044     time_t ts_user_voc;
00045     time_t ts_user_idx;
00046 
00050     time_t sourceTimestamp() const { return ts_main_src < ts_user_src ? ts_user_src : ts_main_src; }
00054     bool needsRebuild() const;
00055 
00063     bool rebuild(const std::string& vocfname, const std::string& idxfname);
00064 
00068     bool rebuildIfNeeded();
00069 
00077     bool getUpToDateVocabulary(std::string& vocfname, std::string& idxfname);
00078 
00085     bool userIndexIsRedundant() const;
00086 
00090     bool deleteRedundantUserIndex();
00091 
00095     void rescan();
00096 
00097     VocabularyIndexer();
00098 
00108     static bool obtainWorkingVocabulary(std::string& vocfname, std::string& idxfname);
00109 };
00110 
00111 
00112 }
00113 }
00114 
00115 // vim:set ts=4 sw=4:
00116 #endif

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