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livetrax/libs/pbd/clear_dir.cc

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/*
Copyright (C) 2012 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef COMPILER_MSVC
#include <io.h> // Microsoft's nearest equivalent to <unistd.h>
using PBD::readdir;
using PBD::opendir;
using PBD::closedir;
#else
#include <dirent.h>
#include <unistd.h>
#endif
#include <string>
#include <sys/stat.h>
#include <errno.h>
#include <string.h>
#include <glib/gstdio.h>
#include <glibmm/miscutils.h>
#include "pbd/error.h"
#include "pbd/compose.h"
#include "pbd/clear_dir.h"
#include "i18n.h"
using namespace PBD;
using namespace std;
int
PBD::clear_directory (const string& dir, size_t* size, vector<string>* paths)
{
struct dirent* dentry;
struct stat statbuf;
DIR* dead;
int ret = 0;
if ((dead = ::opendir (dir.c_str())) == 0) {
return -1;
}
while ((dentry = ::readdir (dead)) != 0) {
/* avoid '.' and '..' */
if ((dentry->d_name[0] == '.' && dentry->d_name[1] == '\0') ||
(dentry->d_name[2] == '\0' && dentry->d_name[0] == '.' && dentry->d_name[1] == '.')) {
continue;
}
string fullpath = Glib::build_filename (dir, dentry->d_name);
if (::stat (fullpath.c_str(), &statbuf)) {
continue;
}
if (!S_ISREG (statbuf.st_mode)) {
continue;
}
if (::g_unlink (fullpath.c_str())) {
error << string_compose (_("cannot remove file %1 (%2)"), fullpath, strerror (errno))
<< endmsg;
ret = 1;
}
if (paths) {
paths->push_back (dentry->d_name);
}
if (size) {
*size += statbuf.st_size;
}
}
::closedir (dead);
return ret;
}