| # Gaudi Framework, version v21r6 |

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# DirSearchPath.cpp

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    00001 // $Id: DirSearchPath.cpp,v 1.2 2007/10/16 15:37:25 marcocle Exp $
    00002
    00003 //<<<<<< INCLUDES                                                       >>>>>>
    00004 #include <algorithm>  /* find */
    00005 #include <iostream>
    00006 #include "boost/filesystem/operations.hpp"
    00007 #include "boost/tokenizer.hpp"
    00008 #include "GaudiKernel/DirSearchPath.h"
    00009
    00010 using namespace std;
    00011
    00012 using boost::filesystem::filesystem_error;
    00013 using boost::filesystem::exists;
    00014 using boost::filesystem::is_directory;
    00015
    00016 using boost::tokenizer;
    00017 using boost::char_separator;
    00018
    00019 //structors
    00020 DirSearchPath::DirSearchPath(const std::string& stringifiedPath, const char* separator) {
    00021   addCWD(); //FIXME is this a good idea?
    00022
    00023   typedef  tokenizer<char_separator<char> > Tokenizer;
    00024
    00025   Tokenizer tok(stringifiedPath, char_separator<char>(separator));
    00026
    00027
    00028   //add names to dir container, filtering dir names to remove invalid ones
    00029   //notice how we iterate over all tokens even if there is an illegal one
    00030   Tokenizer::iterator it = tok.begin();
    00031   while(it != tok.end()) {
    00032     try {
    00033       //path p( *(it++), boost::filesystem::native);
    00034       // For some reason native() does not work with boost 1.31. Changed to no_check and cross the fingers....
    00035       path p( *(it++), boost::filesystem::no_check);
    00036       add(p);
    00037     }
    00038     catch (boost::filesystem::filesystem_error /*err*/) {
    00039     }
    00040   }
    00041 }
    00042
    00043 //modifiers
    00044 // bool DirSearchPath::add(const std::string& dirName) {
    00045 //   bool rc(false);
    00046 //   try {
    00047 //     rc=add(path(dirName));
    00048 //   } catch (const filesystem_error& err) {
    00049 // #ifndef NDEBUG
    00050 //     cerr << "DirSearchPath::DirSearchPath: ERROR adding dir "
    00051 //       << err.what() << endl;
    00052 //     throw err;
    00053 // #endif
    00054 //   }
    00055 //   return rc;
    00056 // }
    00057
    00058 bool DirSearchPath::addCWD() {
    00059   return add(boost::filesystem::current_path());
    00060 }
    00061
    00062 bool DirSearchPath::add(const path& dir) {
    00063   bool dirExist(existsDir(dir));
    00064   //add dir to path even if dir does not (yet) exist,
    00065   // but don't add twice same dir
    00066   if (m_dirs.end() == std::find_if(m_dirs.begin(), m_dirs.end(), eqPath(dir)))
    00067     m_dirs.push_back(dir);
    00068   return dirExist;
    00069 }
    00070
    00071 //accessors
    00072 bool DirSearchPath::find(const string& fileName, string& fullFileName) const {
    00073   bool rc(false);
    00074   try {
    00075     path fileFound;
    00076     if ( (rc = find(path(fileName), fileFound)) )
    00077       fullFileName = fileFound.native_directory_string();
    00078   } catch (...) {}
    00079   return rc;
    00080 }
    00081
    00082 //accessors
    00083 bool DirSearchPath::find(const path& file, path& fileFound) const {
    00084   bool rc(false);
    00085   for (std::list<path>::const_iterator iDir=m_dirs.begin(); iDir!=m_dirs.end(); ++iDir) {
    00086     path full(*iDir / file);
    00087     if (exists(full)) {
    00088       fileFound = full;
    00089       rc = true;
    00090       break;
    00091     }
    00092   }
    00093   return rc;
    00094 }
    00095
    00096 //accessors
    00097 std::list<DirSearchPath::path>
    00098 DirSearchPath::find_all(const path& file) const {
    00099   std::list<path> found;
    00100   for (std::list<path>::const_iterator iDir=m_dirs.begin(); iDir!=m_dirs.end(); ++iDir) {
    00101     path full(*iDir / file);
    00102     if (exists(full)) {
    00103       found.push_back(full);
    00104     }
    00105   }
    00106   return found;
    00107 }
    00108
    00109 //helpers
    00110 bool DirSearchPath::existsDir(const std::string& dirName) {
    00111   bool rc(false);
    00112   try {
    00113     rc=is_directory(path(dirName));
    00114   } catch(...) {}
    00115   return rc;
    00116 }
    00117 bool DirSearchPath::existsDir(const path& dir) {
    00118   return (exists(dir) && is_directory(dir));
    00119 }