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Rockbox as an application: add get_user_file_path().

For RaaA it evaluates user paths at runtime. For everything but codecs/plugins it will give the path under $HOME/.config/rockbox.org if write access is needed or if the file/folder in question exists there (otherwise it gives /usr/local/share/rockbox).
This allows for installing themes under $HOME as well as having config.cfg and other important files there while installing the application (and default themes) under /usr/local.

On the DAPs it's a no-op, returing /.rockbox directly.

Not converted to use get_user_file_path() are plugins themselves, because RaaA doesn't build plugins yet.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27656 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2010-08-01 16:15:27 +00:00
parent 2e7d92fef7
commit 9c0b2479f7
41 changed files with 620 additions and 248 deletions

84
firmware/common/rbpaths.c Normal file
View file

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2010 Thomas Martitz
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdio.h> /* snprintf */
#include <stdlib.h>
#include "rbpaths.h"
#include "file.h" /* MAX_PATH */
#include "dir.h"
#include "gcc_extensions.h"
#include "string-extra.h"
#include "filefuncs.h"
void paths_init(void)
{
/* make sure $HOME/.config/rockbox.org exists, it's needed for config.cfg */
char home_path[MAX_PATH];
snprintf(home_path, sizeof(home_path), "%s/.config/rockbox.org", getenv("HOME"));
mkdir(home_path);
}
const char* get_user_file_path(const char *path,
unsigned flags,
char* buf,
const size_t bufsize)
{
const char *ret = path;
const char *pos = path;
printf("%s(): looking for %s\n", __func__, path);
/* replace ROCKBOX_DIR in path with $HOME/.config/rockbox.org */
pos += ROCKBOX_DIR_LEN;
if (*pos == '/') pos += 1;
if (snprintf(buf, bufsize, "%s/.config/rockbox.org/%s", getenv("HOME"), pos)
>= (int)bufsize)
return NULL;
/* always return the replacement buffer (pointing to $HOME) if
* write access is needed */
if (flags & NEED_WRITE)
ret = buf;
else
{
if (flags & IS_FILE)
{
if (file_exists(buf))
ret = buf;
}
else
{
if (dir_exists(buf))
ret = buf;
}
}
/* make a copy if we're about to return the path*/
if (UNLIKELY((flags & FORCE_BUFFER_COPY) && (ret != buf)))
{
strlcpy(buf, ret, bufsize);
ret = buf;
}
printf("%s(): %s\n", __func__, ret);
return ret;
}