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/** \file directory.c
* Directory Management
*/
/* XTrkCad - Model Railroad CAD
* Copyright (C) 2018 Adam Richards and Martin Fischer
*
* 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 "directory.h"
#include "dynstring.h"
#include "misc.h"
#include "common-ui.h"
/*****************************************************************************
* Safe Create Dir
* \param IN dir The directory path to create
*
* \return TRUE if ok
*
*/
BOOL_T SafeCreateDir(const char *dir)
{
int err;
err = mkdir(dir, 0755);
if (err < 0) {
if (errno != EEXIST) {
NoticeMessage(MSG_DIR_CREATE_FAIL,
_("Continue"), NULL, dir, strerror(errno));
perror(dir);
return FALSE;
}
}
return TRUE;
}
/************************************************
* DeleteDirectory empties and removes a directory recursively
*
* \param IN dir_path The Directory to empty and remove
*
* \return TRUE if ok
*
*/
BOOL_T DeleteDirectory(const char *dir_path)
{
size_t path_len;
char *full_path = NULL;
DIR *dir;
struct stat stat_path, stat_entry;
struct dirent *entry;
DynString path;
// stat for the path
int resp = stat(dir_path, &stat_path);
if (resp != 0 && errno == ENOENT) {
return TRUE; //Does not Exist
}
// if path is not dir - exit
if (!(S_ISDIR(stat_path.st_mode))) {
NoticeMessage(MSG_NOT_DIR_FAIL,
_("Continue"), NULL, dir_path);
return FALSE;
}
// if not possible to read the directory for this user
if ((dir = opendir(dir_path)) == NULL) {
NoticeMessage(MSG_DIR_OPEN_FAIL,
_("Continue"), NULL, dir_path);
return FALSE;
}
// the length of the path
path_len = strlen(dir_path) + 1;
DynStringMalloc(&path, path_len + 16); //guessing the total path length
// iteration through entries in the directory
while ((entry = readdir(dir)) != NULL) {
// skip entries "." and ".."
if (!strcmp(entry->d_name, ".") || !strcmp(entry->d_name, "..")) {
continue;
}
// determinate a full path of an entry
DynStringReset(&path);
DynStringCatCStrs(&path, dir_path, FILE_SEP_CHAR, entry->d_name, NULL);
full_path = DynStringToCStr(&path);
// stat for the entry
stat(full_path, &stat_entry);
// recursively remove a nested directory
if (S_ISDIR(stat_entry.st_mode) != 0) {
DeleteDirectory(full_path);
continue;
}
// remove a file object
if (unlink(full_path)) {
NoticeMessage(MSG_UNLINK_FAIL, _("Continue"), NULL, full_path);
DynStringFree(&path);
closedir(dir);
return FALSE;
} else {
#if DEBUG
printf("Removed a file: %s \n", full_path);
#endif
}
}
closedir(dir);
DynStringFree(&path);
// remove the devastated directory and close the object of it
if (rmdir(dir_path)) {
NoticeMessage(MSG_RMDIR_FAIL, _("Continue"), NULL, dir_path);
return FALSE;
} else {
#if DEBUG
printf("Removed a directory: %s \n", dir_path);
#endif
}
return TRUE;
}
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