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shelly-builder.js
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shelly-builder.js
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/**
* shelly-porssisahko
*
* (c) Jussi isotalo - http://jisotalo.fi
* https://github.com/jisotalo/shelly-porssisahko
*
* License: GNU Affero General Public License v3.0
*
* This file is used for the build/minify process only.
* NOTE: work-in-progress
*
* Usage:
* npm run build : builds and creates files to ./dist
* npm start : runs build and then uploads codes to shelly
* npm serve : serves static file from ./src/statics at local http server port 3000
* npm debug : starts listening to UDP data at port 8001
*/
const fs = require('fs').promises;
const path = require('path');
const UglifyJS = require("uglify-js");
const minify = require('html-minifier').minify;
const zlib = require('node:zlib');
const { promisify } = require('node:util');
const dgram = require('node:dgram');
//Settings
const BASE_URL = "http://192.168.68.100";
const RPC_URL = `${BASE_URL}/rpc`;
const MAX_CODE_CHUNK_SIZE = 1024;
const GZIP = true;
const UDP_DEBUG_PORT = 8001;
const MAX_STATIC_FILE_SIZE = -1; //Max file size served with shelly HTTP in bytes
const MAX_SCRIPT_SIZE = -1; //Max script size allowed in bytes
const log = (...args) => {
let time = new Date().toISOString();
time = time.substring(time.indexOf("T") + 1);
console.log(`${time}:`, ...args);
}
/**
* Returns all available scripts
* @returns
*/
const getScripts = async () => {
log(`getScripts(): Reading all scripts from shelly...`);
const res = await fetch(`${RPC_URL}/Script.List`);
if (res.status !== 200) {
throw new Error(`getScripts(): Failed to read all scripts: ${JSON.stringify(await res.json())}`)
}
const scripts = (await res.json()).scripts;
log(`getScripts(): Scripts read - found ${scripts.length} scripts`);
return scripts;
}
/**
* Returns script id by given script name
*
* If not found -> throws an error!
* @param {*} name
* @returns
*/
const getScriptId = async (name) => {
log(`getScriptId(): Reading scripts to find script named "${name}"...`);
const scripts = await getScripts();
const found = scripts.find(s => s.name.toLowerCase() === name.toLowerCase());
if (found) {
log(`getScriptId(): Found script "${found.name}" (id: ${found.id})`);
return Number(found.id);
}
log(`getScriptId(): Script "${name}" was not found`);
throw new Error(`getScriptId(): Script "${name}" was not found`);
}
/**
* Creates a new script with given name
* @param {*} name
*/
const createScript = async (name) => {
log(`createScript(): Creating script with name ${name}`);
const res = await fetch(`${RPC_URL}/Script.Create?name="${encodeURI(name)}"`);
if (res.status !== 200) {
throw new Error(`createScript(): Failed to create script "${name}": ${JSON.stringify(await res.json())}`)
}
log(`createScript(): Script "${name}" created: ${JSON.stringify(await res.json())}`);
}
/**
* Deletes script by given script name or id
* @param {*} name name or id
*/
const deleteScript = async (nameOrId, throwIfNotFound = false) => {
if (typeof nameOrId === 'string') {
try {
nameOrId = await getScriptId(nameOrId);
} catch (err) {
if (throwIfNotFound) {
throw err;
}
return;
}
}
log(`deleteScript(): Deleting script with id ${nameOrId}`);
const res = await fetch(`${RPC_URL}/Script.Delete?id=${nameOrId}`);
if (res.status !== 200) {
throw new Error(`deleteScript(): Failed to delete script with id ${nameOrId}: ${JSON.stringify(await res.json())}`)
}
log(`deleteScript(): Script with id ${nameOrId} deleted: ${JSON.stringify(await res.json())}`);
}
/**
* Starts script by given script name or id
* @param {*} name name or id
*/
const startScript = async (nameOrId) => {
if (typeof nameOrId === 'string') {
nameOrId = await getScriptId(nameOrId);
}
log(`startScript(): Starting script with id ${nameOrId}`);
const res = await fetch(`${RPC_URL}/Script.Start?id=${nameOrId}`);
if (res.status !== 200) {
throw new Error(`startScript(): Failed to start script with id ${nameOrId}: ${JSON.stringify(await res.json())}`)
}
log(`startScript(): Script with id ${nameOrId} started: ${JSON.stringify(await res.json())}`);
}
/**
* Sets script enable to false/true
* @param {*} name
*/
const setScriptEnable = async (nameOrId, enable) => {
if (typeof nameOrId === 'string') {
nameOrId = await getScriptId(nameOrId);
}
log(`setScriptEnable(): Setting script with id ${nameOrId} to enable: ${enable}`);
const res = await fetch(`${RPC_URL}/Script.SetConfig?id=${nameOrId}&config={"enable":${enable}}`);
if (res.status !== 200) {
throw new Error(`setScriptEnable(): Failed to set script with id ${nameOrId} enable to ${enable}: ${JSON.stringify(await res.json())}`)
}
log(`setScriptEnable(): Script with id ${nameOrId} enable set to ${enable}: ${JSON.stringify(await res.json())}`);
}
/**
* Uploads file contents to a script with given name
* @param {*} name
* @param {*} filePath
*/
const uploadScript = async (name, id, filePath) => {
log(`uploadScript(): Starting upload of script "${name}" with id ${id} from file "${filePath}"`);
const data = await fs.readFile(filePath);
let pos = 0;
let firstTime = true;
while (pos < data.byteLength) {
const codeChunk = data.subarray(pos, pos + MAX_CODE_CHUNK_SIZE);
//log(`uploadScript(): Uploading script "${name}" ${pos}...${pos + codeChunk.byteLength}/${data.byteLength}... (${RPC_URL}/Script.PutCode?id=${id}&code="${encodeURIComponent(codeChunk.toString())}"&append=${!firstTime})`);
log(`uploadScript(): Uploading script "${name}" ${pos}...${pos + codeChunk.byteLength}/${data.byteLength}...`);
const res = await fetch(`${RPC_URL}/Script.PutCode?id=${id}&code="${encodeURIComponent(codeChunk.toString())}"&append=${!firstTime}`);
if (res.status !== 200) {
throw new Error(`uploadScript(): Failed to upload script chunk ${pos}...${pos + codeChunk.byteLength}/${data.byteLength}: ${JSON.stringify(await res.text())}`)
}
log(`uploadScript(): Uploading script "${name}" ${pos}...${pos + codeChunk.byteLength}/${data.byteLength} successful: ${JSON.stringify(await res.json())}"`);
pos += codeChunk.byteLength;
firstTime = false;
}
log(`uploadScript(): Upload of script "${name}" with id ${id} from file "${filePath} done!"`);
}
/**
* Minifies the script file and writes to ./dist directory
* @param {*} filePath
* @param {*} distPath
*/
const createDistFile = async (filePath, distPath, isShellyScript) => {
log(`createDistFile(): Minifying script "${filePath}"...`);
let data = (await fs.readFile(filePath)).toString();
if (isShellyScript) {
let staticFileMatches = data.matchAll(/\#\[(.*)\]/gm);
for (const staticFileMatch of staticFileMatches) {
data = data.replace(staticFileMatch[0], ((await fs.readFile(path.join('./dist/statics', staticFileMatch[1]))).toString()));
}
}
let outputBuffer = Buffer.alloc(0);
let gzippedBuffer = Buffer.alloc(0);
if (filePath.endsWith(".js")) {
const minified = UglifyJS.minify(data, {
toplevel: true,
output: {
comments: "some" //leaving @license comment
},
mangle: {
reserved: [
//Some issues atm. with global constants -> setting so that names will not be mangled
"C_LOG",
"C_HIST",
"C_ERRC",
"C_ERRD",
"C_DEF",
"_" //Keeping state variable name as _ for user scripts
]
},
compress: {
pure_funcs: [
'DBG',
'me'
],
unsafe: true
},
});
if (minified.error) {
log(`createDistFile(): Minifying script "${filePath}" failed: ${minified.error}`);
throw new Error(`createDistFile(): Minifying script "${filePath}" failed: ${minified.error}`);
}
outputBuffer = minified.code;
if (GZIP && !isShellyScript) {
const gzip = promisify(zlib.gzip);
const zippedData = await gzip(outputBuffer);
gzippedBuffer = Buffer.from(zippedData.toString('base64'), 'utf8');
}
log(`createDistFile(): Minifying script "${filePath}" done - size is now ${(100.0 - (minified.code.length / data.length * 100.0)).toFixed(0)}% smaller`);
} else if (filePath.endsWith(".html") || filePath.endsWith(".css")) {
const minified = minify(data, {
removeAttributeQuotes: true,
preserveLineBreaks: false,
removeTagWhitespace: true,
collapseWhitespace: true,
removeComments: true,
removeOptionalTags: true,
removeScriptTypeAttributes: true,
useShortDoctype: true,
minifyCSS: true,
minifyJS: true,
removeRedundantAttributes: true,
html5: true,
});
let trimmedData = minified.replace(/[\n\r]/g, '');
trimmedData = trimmedData.replace(/\s+/g, " ");
/*
if (filePath.endsWith(".css")) {
trimmedData = trimmedData.replaceAll("{ ", "{");
trimmedData = trimmedData.replaceAll(" {", "{");
trimmedData = trimmedData.replaceAll(" }", "}");
trimmedData = trimmedData.replaceAll("} ", "}");
trimmedData = trimmedData.replaceAll(": ", ":");
trimmedData = trimmedData.replaceAll("; ", ";");
}
*/
outputBuffer = Buffer.from(trimmedData, 'utf8');
if (GZIP) {
const gzip = promisify(zlib.gzip);
const zippedData = await gzip(outputBuffer);
gzippedBuffer = Buffer.from(zippedData.toString('base64'), 'utf8');
}
} else {
outputBuffer = Buffer.from(data, 'utf8');
}
//log(data);
//log(minified.code);
log(`createDistFile(): Creating dist file for "${filePath}" done`);
await fs.writeFile(distPath, GZIP && !isShellyScript ? gzippedBuffer : outputBuffer);
if (GZIP && !isShellyScript) {
const fileExt = path.extname(distPath);
await fs.writeFile(distPath.replace(fileExt, `.nozip${fileExt}`), outputBuffer);
}
}
/**
* Uploads script file/s() from ./dist to the Shelly
* Orders by name
*/
const upload = async (files = []) => {
if (!files || files.length === 0) {
files = await fs.readdir('./dist', { recursive: false });
}
for (let file of files.sort()) {
const distPath = path.join('./dist', file);
const fileInfo = await fs.stat(distPath);
if (!fileInfo.isFile()) {
continue;
}
await deleteScript(file);
await createScript(file);
const id = await getScriptId(file);
await uploadScript(file, id, distPath);
await setScriptEnable(id, true);
await startScript(id);
}
log(`All files uploaded!`);
printStats();
}
/**
* Builds and creates ./dist files from all ./src files
*/
const build = async (files = []) => {
await fs.rm('./dist', { recursive: true, force: true });
await fs.mkdir('./dist');
await fs.mkdir('./dist/statics');
//Static files (build all)
let staticFiles = await fs.readdir('./src/statics', { recursive: false });
for (let file of staticFiles.sort()) {
const filePath = path.join('./src/statics', file);
const distPath = path.join('./dist/statics', file);
const fileInfo = await fs.stat(filePath);
if (!fileInfo.isFile()) {
continue;
}
await createDistFile(filePath, distPath, false);
}
//Shelly files (build all or provided ones)
if (!files || files.length === 0) {
files = await fs.readdir('./src', { recursive: false });
}
for (let file of files.sort()) {
const filePath = path.join('./src', file);
const distPath = path.join('./dist', file);
const fileInfo = await fs.stat(filePath);
if (!fileInfo.isFile()) {
continue;
}
await createDistFile(filePath, distPath, true);
}
log(`All files built!`);
printStats();
}
const printStats = async () => {
log('--------------------------------------------------');
log('Static files:');
log('');
let statics = await fs.readdir('./dist/statics', { recursive: false });
for (let file of statics.sort()) {
if (file.includes(".nozip.")) {
continue;
}
const distPath = path.join('./dist/statics', file);
const fileInfo = await fs.stat(distPath);
if (!fileInfo.isFile()) {
continue;
}
log(` ${file}`);
if (MAX_STATIC_FILE_SIZE > 0 && MAX_STATIC_FILE_SIZE - fileInfo.size < 100) {
log(` ${(fileInfo.size / 1024.0).toFixed(1)} KB\t${(MAX_STATIC_FILE_SIZE - fileInfo.size)} bytes left (used ${(fileInfo.size / MAX_STATIC_FILE_SIZE * 100.0).toFixed(0)} %) <---- WARNING!!!`);
} else if (MAX_STATIC_FILE_SIZE > 0) {
log(` ${(fileInfo.size / 1024.0).toFixed(1)} KB\t${(MAX_STATIC_FILE_SIZE - fileInfo.size)} bytes left (used ${(fileInfo.size / MAX_STATIC_FILE_SIZE * 100.0).toFixed(0)} %)`);
} else {
log(` ${(fileInfo.size / 1024.0).toFixed(1)} KB`);
}
}
log('--------------------------------------------------');
let files = await fs.readdir('./dist', { recursive: false });
log('File stats:');
log('');
let count = 0;
for (let file of files.sort()) {
const distPath = path.join('./dist', file);
const fileInfo = await fs.stat(distPath);
if (!fileInfo.isFile()) {
continue;
}
log(` ${file}`);
if (MAX_SCRIPT_SIZE > 0) {
log(` ${(fileInfo.size / 1024.0).toFixed(1)} KB\t${(MAX_SCRIPT_SIZE - fileInfo.size)} bytes left (used ${(fileInfo.size / MAX_SCRIPT_SIZE * 100.0).toFixed(0)} %)`);
} else {
log(` ${(fileInfo.size / 1024.0).toFixed(1)} KB`);
}
count++;
}
log('');
log(`Scripts in use ${count}/3`);
log('--------------------------------------------------');
}
const uploadAndBuildAll = async () => {
await buildAll();
await uploadAll();
}
const listenUdp = async () => {
fs.unlink("./log.txt").catch(err => { });
const socket = dgram.createSocket('udp4');
socket.addListener('message', (msg, rinfo) => {
let str = msg.toString('utf-8');
str = str.substring(str.indexOf("|") + 1);
str = str.substring(str.indexOf(" ") + 1);
str = str.trim();
if (str.includes("1 clears ")) {
return;
}
log(str);
let time = new Date().toISOString();
time = time.substring(time.indexOf("T") + 1);
fs.appendFile("./log.txt", `${time}: ${str} \n`).catch();
});
socket.bind(UDP_DEBUG_PORT, () => {
log(`Listening to UDP port ${UDP_DEBUG_PORT}`);
});
}
//Handling command line parameters
const args = process.argv.splice(2);
switch (args[0]) {
case '--buildAll':
build();
break;
case '--build':
build([args[1]]);
break;
case '--uploadAll':
upload();
break;
case '--upload':
upload([args[1]]);
break;
case '--debug':
listenUdp();
break;
case undefined:
default:
console.log(`Error: Unknown command-line arguments: ${args}`);
}
//