189 lines
3.8 KiB
C++
189 lines
3.8 KiB
C++
/*
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Copyright (C) 2007 Tim Mayberry
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <string>
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#include <glib.h>
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#include <glibmm/miscutils.h>
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#include "pbd/tokenizer.h"
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#include "pbd/search_path.h"
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#include "pbd/error.h"
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using namespace std;
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namespace PBD {
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Searchpath::Searchpath ()
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{
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}
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Searchpath::Searchpath (const string& path)
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{
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vector<std::string> tmp;
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if (tokenize (path, string(G_SEARCHPATH_SEPARATOR_S), std::back_inserter (tmp))) {
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add_directories (tmp);
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}
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}
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Searchpath::Searchpath (const vector<std::string>& paths)
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{
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add_directories (paths);
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}
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void
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Searchpath::remove_directory (const std::string& directory_path)
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{
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if (directory_path.empty()) {
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return;
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}
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for (vector<std::string>::iterator i = begin(); i != end();) {
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if (*i == directory_path) {
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i = erase (i);
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} else {
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++i;
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}
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}
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}
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void
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Searchpath::remove_directories (const vector<std::string>& paths)
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{
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for(vector<std::string>::const_iterator i = paths.begin(); i != paths.end(); ++i) {
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remove_directory (*i);
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}
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}
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void
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Searchpath::add_directory (const std::string& directory_path)
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{
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if (directory_path.empty()) {
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return;
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}
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for (vector<std::string>::const_iterator i = begin(); i != end(); ++i) {
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if (*i == directory_path) {
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return;
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}
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}
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push_back(directory_path);
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}
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void
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Searchpath::add_directories (const vector<std::string>& paths)
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{
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for(vector<std::string>::const_iterator i = paths.begin(); i != paths.end(); ++i) {
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add_directory (*i);
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}
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}
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const string
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Searchpath::to_string () const
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{
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string path;
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for (vector<std::string>::const_iterator i = begin(); i != end(); ++i) {
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path += *i;
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path += G_SEARCHPATH_SEPARATOR;
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}
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path = path.substr (0, path.length() - 1); // drop final separator
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return path;
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}
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Searchpath&
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Searchpath::operator+= (const Searchpath& spath)
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{
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insert(end(), spath.begin(), spath.end());
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return *this;
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}
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Searchpath&
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Searchpath::operator+= (const std::string& directory_path)
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{
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add_directory (directory_path);
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return *this;
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}
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const Searchpath
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Searchpath::operator+ (const std::string& directory_path)
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{
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return Searchpath (*this) += directory_path;
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}
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const Searchpath
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Searchpath::operator+ (const Searchpath& spath)
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{
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return Searchpath (*this) += spath;
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}
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Searchpath&
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Searchpath::operator-= (const Searchpath& spath)
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{
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remove_directories (spath);
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return *this;
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}
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Searchpath&
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Searchpath::operator-= (const std::string& directory_path)
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{
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remove_directory (directory_path);
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return *this;
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}
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Searchpath&
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Searchpath::add_subdirectory_to_paths (const string& subdir)
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{
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for (vector<std::string>::iterator i = begin(); i != end(); ++i) {
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// should these new paths just be added to the end of
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// the search path rather than replace?
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*i = Glib::build_filename (*i, subdir);
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}
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return *this;
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}
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/* This is not part of the Searchpath object, but is closely related to the
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* whole idea, and we put it here for convenience.
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*/
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void
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export_search_path (const string& base_dir, const char* varname, const char* dir)
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{
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string path;
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const char * cstr = g_getenv (varname);
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if (cstr) {
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path = cstr;
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path += G_SEARCHPATH_SEPARATOR;
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} else {
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path = "";
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}
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path += base_dir;
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path += dir;
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g_setenv (varname, path.c_str(), 1);
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}
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} // namespace PBD
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