source: trunk/yat/utility/OptionFile.cc @ 979

Last change on this file since 979 was 979, checked in by Peter, 14 years ago

fixing bug in OptionFile?. Dont try to create FileUtil? for option not present in commandline

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 2.1 KB
Line 
1// $Id: OptionFile.cc 979 2007-10-21 19:46:14Z peter $
2
3/*
4  Copyright (C) 2007 Peter Johansson
5
6  This file is part of the yat library, http://trac.thep.lu.se/trac/yat
7
8  The yat library is free software; you can redistribute it and/or
9  modify it under the terms of the GNU General Public License as
10  published by the Free Software Foundation; either version 2 of the
11  License, or (at your option) any later version.
12
13  The yat library is distributed in the hope that it will be useful,
14  but WITHOUT ANY WARRANTY; without even the implied warranty of
15  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  General Public License for more details.
17
18  You should have received a copy of the GNU General Public License
19  along with this program; if not, write to the Free Software
20  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
21  02111-1307, USA.
22*/
23
24#include "OptionFile.h"
25#include "FileUtil.h"
26
27#include <string>
28
29namespace theplu {
30namespace yat {
31namespace utility {
32
33
34  OptionFile::OptionFile(CommandLine& cmd, std::string flag, 
35                         std::string desc, bool exist, std::string bits)
36    : OptionArg<std::string>(cmd, flag, desc), exist_(exist), bits_(bits)
37  {
38  }
39
40
41  void OptionFile::do_validate() const
42  {   
43    if (!present())
44      return;
45    FileUtil fu(value().c_str());
46    if (exist_ && !fu.exists()){
47      std::stringstream ss;
48      ss << "cannot stat `" << value() << "': No such file or directory";
49      throw std::runtime_error(ss.str());
50    }
51    if (fu.permissions(bits_)) {
52      // Peter, this loop is stupid but I wanna differentiate the error message
53      for (std::string::const_iterator iter; iter!=bits_.end(); ++iter){
54        if (*iter=='r' && fu.permissions("r")){
55          std::stringstream ss;
56          ss << "cannot stat `" << value() << "': No such file or directory";
57          throw std::runtime_error(ss.str());
58        }
59        else if (*iter=='w' && fu.permissions("w")){
60          std::stringstream ss;
61          ss << "cannot create file `" << value() 
62             << "': Permission denied";
63          throw std::runtime_error(ss.str());
64        }
65      }
66      std::stringstream ss;
67      ss << value() << ": Permission denied";
68      throw std::runtime_error(ss.str());
69    }
70  }
71
72
73}}} // of namespace utility, yat, and theplu
Note: See TracBrowser for help on using the repository browser.