f7ee0beb26
Signed-off-by: Wjatscheslaw Stoljarski <wjatscheslaw.stoljarski@kiwigrid.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
127 lines
2.9 KiB
C
127 lines
2.9 KiB
C
/*
|
|
* Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @brief loadenv: Restoring a environment
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <getopt.h>
|
|
#include <command.h>
|
|
#include <envfs.h>
|
|
#include <errno.h>
|
|
#include <fs.h>
|
|
#include <malloc.h>
|
|
#include <globalvar.h>
|
|
|
|
static int do_loadenv(int argc, char *argv[])
|
|
{
|
|
char *filename = NULL, *dirname;
|
|
unsigned flags = 0;
|
|
int opt, ret;
|
|
int scrub = 0;
|
|
int defaultenv = 0;
|
|
|
|
while ((opt = getopt(argc, argv, "nsd")) > 0) {
|
|
switch (opt) {
|
|
case 'n':
|
|
flags |= ENV_FLAG_NO_OVERWRITE;
|
|
break;
|
|
case 's':
|
|
scrub = 1;
|
|
break;
|
|
case 'd':
|
|
defaultenv = 1;
|
|
break;
|
|
default:
|
|
return COMMAND_ERROR_USAGE;
|
|
}
|
|
}
|
|
|
|
if (argc - optind < 2)
|
|
dirname = "/env";
|
|
else
|
|
dirname = argv[optind + 1];
|
|
|
|
if (argc - optind < 1) {
|
|
filename = default_environment_path_get();
|
|
} else {
|
|
char *str = normalise_path(argv[optind]);
|
|
|
|
/*
|
|
* /dev/defaultenv use to contain the defaultenvironment.
|
|
* we do not have this file anymore, but maintain compatibility
|
|
* to the 'loadenv -s /dev/defaultenv' command to restore the
|
|
* default environment for some time.
|
|
*/
|
|
if (!strcmp(str, "/dev/defaultenv"))
|
|
defaultenv = 1;
|
|
else
|
|
filename = argv[optind];
|
|
|
|
free(str);
|
|
}
|
|
|
|
if (scrub) {
|
|
int ret;
|
|
|
|
ret = unlink_recursive(dirname, NULL);
|
|
if (ret && ret != -ENOENT) {
|
|
eprintf("cannot remove %s: %s\n", dirname,
|
|
strerror(-ret));
|
|
return 1;
|
|
}
|
|
|
|
ret = mkdir(dirname, 0);
|
|
if (ret) {
|
|
eprintf("cannot create %s: %s\n", dirname,
|
|
strerror(-ret));
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
printf("loading environment from %s\n", defaultenv ? "defaultenv" : filename);
|
|
|
|
if (defaultenv)
|
|
ret = defaultenv_load(dirname, flags);
|
|
else
|
|
ret = envfs_load(filename, dirname, flags);
|
|
|
|
nvvar_load();
|
|
|
|
return ret;
|
|
}
|
|
|
|
BAREBOX_CMD_HELP_START(loadenv)
|
|
BAREBOX_CMD_HELP_TEXT("Load environment from files in ENVFS (default /dev/env0) in")
|
|
BAREBOX_CMD_HELP_TEXT("DIRECTORY (default /env)")
|
|
BAREBOX_CMD_HELP_TEXT("")
|
|
BAREBOX_CMD_HELP_TEXT("Options:")
|
|
BAREBOX_CMD_HELP_OPT("-n", "do not overwrite existing files")
|
|
BAREBOX_CMD_HELP_OPT("-s", "scrub old environment")
|
|
BAREBOX_CMD_HELP_OPT("-d", "load default environment")
|
|
BAREBOX_CMD_HELP_END
|
|
|
|
BAREBOX_CMD_START(loadenv)
|
|
.cmd = do_loadenv,
|
|
BAREBOX_CMD_DESC("load environment from ENVFS")
|
|
BAREBOX_CMD_OPTS("[-nsd] [ENVFS] [DIRECTORY]")
|
|
BAREBOX_CMD_GROUP(CMD_GRP_ENV)
|
|
BAREBOX_CMD_HELP(cmd_loadenv_help)
|
|
BAREBOX_CMD_END
|