libs/pbd/file_utils.cc

   1 /*
   2     Copyright (C) 2007 Tim Mayberry
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <algorithm>
  21
  22 #include <glibmm/fileutils.h>
  23 #include <glibmm/pattern.h>
  24
  25 #include "pbd/compose.h"
  26 #include "pbd/file_utils.h"
  27
  28 #include "pbd/error.h"
  29
  30 namespace PBD {
  31
  32 void
  33 get_files_in_directory (const sys::path& directory_path, vector<string>& result)
  34 {
  35         if (!is_directory(directory_path)) return;
  36
  37         try
  38         {
  39                 Glib::Dir dir(directory_path.to_string());
  40                 std::copy(dir.begin(), dir.end(), std::back_inserter(result));
  41         }
  42         catch (Glib::FileError& err)
  43         {
  44                 warning << err.what() << endmsg;
  45         }
  46 }
  47
  48 void
  49 find_matching_files_in_directory (const sys::path& directory,
  50                                   const Glib::PatternSpec& pattern,
  51                                   vector<sys::path>& result)
  52 {
  53         vector<string> tmp_files;
  54
  55         get_files_in_directory (directory, tmp_files);
  56         result.reserve(tmp_files.size());
  57
  58         for (vector<string>::iterator file_iter = tmp_files.begin();
  59                         file_iter != tmp_files.end();
  60                         ++file_iter)
  61         {
  62                 if (!pattern.match(*file_iter)) continue;
  63
  64                 sys::path full_path(directory);
  65                 full_path /= *file_iter;
  66
  67                 result.push_back(full_path);
  68         }
  69 }
  70
  71 void
  72 find_matching_files_in_directories (const vector<sys::path>& paths,
  73                                     const Glib::PatternSpec& pattern,
  74                                     vector<sys::path>& result)
  75 {
  76         for (vector<sys::path>::const_iterator path_iter = paths.begin();
  77                         path_iter != paths.end();
  78                         ++path_iter)
  79         {
  80                 find_matching_files_in_directory (*path_iter, pattern, result);
  81         }
  82 }
  83
  84 void
  85 find_matching_files_in_search_path (const SearchPath& search_path,
  86                                     const Glib::PatternSpec& pattern,
  87                                     vector<sys::path>& result)
  88 {
  89         find_matching_files_in_directories (search_path, pattern, result);
  90 }
  91
  92 bool
  93 find_file_in_search_path(const SearchPath& search_path,
  94                          const string& filename,
  95                          sys::path& result)
  96 {
  97         vector<sys::path> tmp;
  98         Glib::PatternSpec tmp_pattern(filename);
  99
 100         find_matching_files_in_search_path (search_path, tmp_pattern, tmp);
 101
 102         if (tmp.size() == 0)
 103         {
 104                 return false;
 105         }
 106
 107 #if 0
 108         if (tmp.size() != 1)
 109         {
 110                 info << string_compose
 111                         (
 112                          "Found more than one file matching %1 in search path %2",
 113                          filename,
 114                          search_path.to_string ()
 115                         )
 116                         << endmsg;
 117         }
 118 #endif
 119
 120         result = tmp.front();
 121
 122         return true;
 123 }
 124
 125 } // namespace PBD