openwrt/package/boot/uboot-envtools/files/fw_loadenv
John Crispin 84577e48bc uboot-envtools: add fw_loadenv tool
This tool will load the uboot environment to /var/run/uboot-env/. This allows
more efficient use when accessing multiple variables.

Signed-off-by: John Crispin <john@phrozen.org>
2024-10-02 15:41:33 +02:00

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#!/usr/bin/ucode
'use strict';
const path = '/var/run/uboot-env/';
import * as fs from 'fs';
if (fs.lsdir(path)) {
warn(`env has already been loaded to ${path}\n`);
exit(0);
}
let fp = fs.popen('fw_printenv');
let raw = fp.read('all');
fp.close();
if (!length(raw))
exit(0);
fs.mkdir(path);
for (let line in split(raw, '\n')) {
let vals = split(line, '=');
if (vals[0] && vals[1])
fs.writefile(path + vals[0], vals[1]);
}