mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-26 01:30:51 +00:00
266 lines
8.4 KiB
C
266 lines
8.4 KiB
C
/* Copyright (C) 2010-2016 The RetroArch team
|
|
*
|
|
* ---------------------------------------------------------------------------------------
|
|
* The following license statement only applies to this file (dir_list.c).
|
|
* ---------------------------------------------------------------------------------------
|
|
*
|
|
* Permission is hereby granted, free of charge,
|
|
* to any person obtaining a copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation the rights to
|
|
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
|
|
* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
|
|
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
|
|
#ifdef _WIN32
|
|
#include <windows.h>
|
|
#endif
|
|
|
|
#include <lists/dir_list.h>
|
|
#include <lists/string_list.h>
|
|
#include <file/file_path.h>
|
|
|
|
#include <compat/strl.h>
|
|
#include <retro_dirent.h>
|
|
|
|
#include <retro_miscellaneous.h>
|
|
|
|
static int qstrcmp_plain(const void *a_, const void *b_)
|
|
{
|
|
const struct string_list_elem *a = (const struct string_list_elem*)a_;
|
|
const struct string_list_elem *b = (const struct string_list_elem*)b_;
|
|
|
|
return strcasecmp(a->data, b->data);
|
|
}
|
|
|
|
static int qstrcmp_dir(const void *a_, const void *b_)
|
|
{
|
|
const struct string_list_elem *a = (const struct string_list_elem*)a_;
|
|
const struct string_list_elem *b = (const struct string_list_elem*)b_;
|
|
int a_type = a->attr.i;
|
|
int b_type = b->attr.i;
|
|
|
|
|
|
/* Sort directories before files. */
|
|
if (a_type != b_type)
|
|
return b_type - a_type;
|
|
return strcasecmp(a->data, b->data);
|
|
}
|
|
|
|
/**
|
|
* dir_list_sort:
|
|
* @list : pointer to the directory listing.
|
|
* @dir_first : move the directories in the listing to the top?
|
|
*
|
|
* Sorts a directory listing.
|
|
*
|
|
**/
|
|
void dir_list_sort(struct string_list *list, bool dir_first)
|
|
{
|
|
if (list)
|
|
qsort(list->elems, list->size, sizeof(struct string_list_elem),
|
|
dir_first ? qstrcmp_dir : qstrcmp_plain);
|
|
}
|
|
|
|
/**
|
|
* dir_list_free:
|
|
* @list : pointer to the directory listing
|
|
*
|
|
* Frees a directory listing.
|
|
*
|
|
**/
|
|
void dir_list_free(struct string_list *list)
|
|
{
|
|
string_list_free(list);
|
|
}
|
|
|
|
/**
|
|
* parse_dir_entry:
|
|
* @name : name of the directory listing entry.
|
|
* @file_path : file path of the directory listing entry.
|
|
* @is_dir : is the directory listing a directory?
|
|
* @include_dirs : include directories as part of the finished directory listing?
|
|
* @include_compressed : Include compressed files, even if not part of ext_list.
|
|
* @list : pointer to directory listing.
|
|
* @ext_list : pointer to allowed file extensions listing.
|
|
* @file_ext : file extension of the directory listing entry.
|
|
*
|
|
* Parses a directory listing.
|
|
*
|
|
* Returns: zero on success, -1 on error, 1 if we should
|
|
* continue to the next entry in the directory listing.
|
|
**/
|
|
static int parse_dir_entry(const char *name, char *file_path,
|
|
bool is_dir, bool include_dirs, bool include_compressed,
|
|
struct string_list *list, struct string_list *ext_list,
|
|
const char *file_ext)
|
|
{
|
|
union string_list_elem_attr attr;
|
|
bool is_compressed_file = false;
|
|
bool supported_by_core = false;
|
|
|
|
attr.i = RARCH_FILETYPE_UNSET;
|
|
|
|
if (!is_dir)
|
|
{
|
|
is_compressed_file = path_is_compressed_file(file_path);
|
|
if (string_list_find_elem_prefix(ext_list, ".", file_ext))
|
|
supported_by_core = true;
|
|
}
|
|
|
|
if (!include_dirs && is_dir)
|
|
return 1;
|
|
|
|
if (!strcmp(name, ".") || !strcmp(name, ".."))
|
|
return 1;
|
|
|
|
if (!is_dir && ext_list &&
|
|
((!is_compressed_file && !supported_by_core) ||
|
|
(!supported_by_core && !include_compressed)))
|
|
return 1;
|
|
|
|
if (is_dir)
|
|
attr.i = RARCH_DIRECTORY;
|
|
if (is_compressed_file)
|
|
attr.i = RARCH_COMPRESSED_ARCHIVE;
|
|
/* The order of these ifs is important.
|
|
* If the file format is explicitly supported by the libretro-core, we
|
|
* need to immediately load it and not designate it as a compressed file.
|
|
*
|
|
* Example: .zip could be supported as a image by the core and as a
|
|
* compressed_file. In that case, we have to interpret it as a image.
|
|
*
|
|
* */
|
|
if (supported_by_core)
|
|
attr.i = RARCH_PLAIN_FILE;
|
|
|
|
if (!string_list_append(list, file_path, attr))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* dir_list_new:
|
|
* @dir : directory path.
|
|
* @ext : allowed extensions of file directory entries to include.
|
|
* @include_dirs : include directories as part of the finished directory listing?
|
|
* @include_hidden : include hidden files and directories as part of the finished directory listing?
|
|
* @include_compressed : Only include files which match ext. Do not try to match compressed files, etc.
|
|
* @recursive : list directory contents recursively
|
|
*
|
|
* Create a directory listing.
|
|
*
|
|
* Returns: pointer to a directory listing of type 'struct string_list *' on success,
|
|
* NULL in case of error. Has to be freed manually.
|
|
**/
|
|
struct string_list *dir_list_new(const char *dir,
|
|
const char *ext, bool include_dirs, bool include_hidden, bool include_compressed, bool recursive)
|
|
{
|
|
struct string_list *ext_list = NULL;
|
|
struct string_list *list = NULL;
|
|
|
|
if (!(list = string_list_new()))
|
|
return NULL;
|
|
|
|
if (ext)
|
|
ext_list = string_split(ext, "|");
|
|
|
|
if(dir_list_read(dir, list, ext_list, include_dirs, include_hidden, include_compressed, recursive) == -1) {
|
|
string_list_free(list);
|
|
string_list_free(ext_list);
|
|
return NULL;
|
|
}
|
|
|
|
string_list_free(ext_list);
|
|
return list;
|
|
}
|
|
|
|
/**
|
|
* dir_list_read:
|
|
* @dir : directory path.
|
|
* @list : the string list to add files to
|
|
* @ext_list : the string list of extensions to include
|
|
* @include_dirs : include directories as part of the finished directory listing?
|
|
* @include_hidden : include hidden files and directories as part of the finished directory listing?
|
|
* @include_compressed : Only include files which match ext. Do not try to match compressed files, etc.
|
|
* @recursive : list directory contents recursively
|
|
*
|
|
* Add files within a directory to an existing string list
|
|
*
|
|
* Returns: -1 on error, 0 on success.
|
|
**/
|
|
int dir_list_read(const char *dir, struct string_list *list, struct string_list *ext_list, bool include_dirs, bool include_hidden, bool include_compressed, bool recursive)
|
|
{
|
|
struct RDIR *entry = retro_opendir(dir);
|
|
|
|
if (!entry)
|
|
return -1;
|
|
|
|
if (retro_dirent_error(entry))
|
|
{
|
|
retro_closedir(entry);
|
|
return -1;
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
if (include_hidden)
|
|
entry->entry.dwFileAttributes |= FILE_ATTRIBUTE_HIDDEN;
|
|
else
|
|
entry->entry.dwFileAttributes &= ~FILE_ATTRIBUTE_HIDDEN;
|
|
#endif
|
|
|
|
while (retro_readdir(entry))
|
|
{
|
|
char file_path[PATH_MAX_LENGTH];
|
|
bool is_dir = false;
|
|
int ret = 0;
|
|
const char *name = retro_dirent_get_name(entry);
|
|
const char *file_ext = path_get_extension(name);
|
|
|
|
file_path[0] = '\0';
|
|
|
|
fill_pathname_join(file_path, dir, name, sizeof(file_path));
|
|
is_dir = retro_dirent_is_dir(entry, file_path);
|
|
|
|
if (!include_hidden)
|
|
{
|
|
if (*name == '.')
|
|
continue;
|
|
}
|
|
|
|
if(is_dir && recursive) {
|
|
if(strstr(name, ".") || strstr(name, ".."))
|
|
continue;
|
|
|
|
dir_list_read(file_path, list, ext_list, include_dirs, include_hidden, include_compressed, recursive);
|
|
}
|
|
|
|
ret = parse_dir_entry(name, file_path, is_dir,
|
|
include_dirs, include_compressed, list, ext_list, file_ext);
|
|
|
|
if (ret == -1)
|
|
{
|
|
retro_closedir(entry);
|
|
return -1;
|
|
}
|
|
|
|
if (ret == 1)
|
|
continue;
|
|
}
|
|
|
|
retro_closedir(entry);
|
|
|
|
return 0;
|
|
}
|