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/*
Copyright (C) 2006 Paul Davis
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <cerrno>
#include <glib.h>
#include <glib/gstdio.h>
#include <glibmm/miscutils.h>
#include <glibmm/fileutils.h>
#include <pbd/path.h>
#include <pbd/tokenizer.h>
namespace PBD {
Path::Path ()
{
}
Path::Path (const string& path)
{
vector<string> tmp;
if(!tokenize ( path, string(":;"), std::back_inserter (tmp))) {
g_warning ("%s : %s\n", G_STRLOC, G_STRFUNC);
return;
}
add_readable_directories (tmp);
}
Path::Path (const vector<string>& paths)
{
add_readable_directories (paths);
}
Path::Path (const Path& other)
: m_dirs(other.m_dirs)
{
}
bool
Path::readable_directory (const string& directory_path)
{
if (g_access (directory_path.c_str(), R_OK) == 0) {
if (Glib::file_test(directory_path, Glib::FILE_TEST_IS_DIR)) {
return true;
} else {
g_warning (" %s : Path exists but is not a directory\n", G_STRLOC);
}
} else {
g_warning ("%s : %s : %s\n", G_STRLOC, directory_path.c_str(), g_strerror(errno));
}
return false;
}
void
Path::add_readable_directory (const string& directory_path)
{
if(readable_directory(directory_path)) {
m_dirs.push_back(directory_path);
}
}
void
Path::add_readable_directories (const vector<string>& paths)
{
for(vector<string>::const_iterator i = paths.begin(); i != paths.end(); ++i) {
add_readable_directory (*i);
}
}
const string
Path::path_string() const
{
string path;
for (vector<string>::const_iterator i = m_dirs.begin(); i != m_dirs.end(); ++i) {
path += (*i);
path += G_SEARCHPATH_SEPARATOR;
}
g_message ("%s : %s", G_STRLOC, path.c_str());
return path.substr (0, path.length() - 1); // drop final colon
}
const Path&
Path::operator= (const Path& path)
{
m_dirs = path.m_dirs;
return *this;
}
const Path&
Path::operator+= (const string& directory_path)
{
add_readable_directory (directory_path);
return *this;
}
const Path
operator+ (const Path& lhs_path, const Path& rhs_path)
{
Path tmp_path(lhs_path); // does this do what I think it does.
// concatenate paths into new Path
tmp_path.m_dirs.insert(tmp_path.m_dirs.end(), rhs_path.m_dirs.begin(), rhs_path.m_dirs.end());
return tmp_path;
}
Path&
Path::add_subdirectory_to_path (const string& subdir)
{
vector<string> tmp;
string directory_path;
for (vector<string>::iterator i = m_dirs.begin(); i != m_dirs.end(); ++i) {
directory_path = Glib::build_filename (*i, subdir);
if(readable_directory(directory_path)) {
tmp.push_back(directory_path);
}
}
m_dirs = tmp;
return *this;
}
bool
find_file_in_path (const Path& path, const string& filename, string& resulting_path)
{
for (vector<string>::const_iterator i = path.dirs().begin(); i != path.dirs().end(); ++i) {
resulting_path = Glib::build_filename ((*i), filename);
if (g_access (resulting_path.c_str(), R_OK) == 0) {
g_message ("File %s found in Path : %s\n", resulting_path.c_str(),
path.path_string().c_str());
return true;
}
}
g_warning ("%s : Could not locate file %s in path %s\n", G_STRLOC, filename.c_str(),
path.path_string().c_str());
return false;
}
} // namespace PBD
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