420 lines
10 KiB
JavaScript
420 lines
10 KiB
JavaScript
/**
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* Writes compressed C arrays of data files (web interface)
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* How to use it?
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*
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* 1) Install Node 11+ and npm
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* 2) npm install
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* 3) npm run build
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*
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* If you change data folder often, you can run it in monitoring mode (it will recompile and update *.h on every file change)
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*
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* > npm run dev
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*
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* How it works?
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*
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* It uses NodeJS packages to inline, minify and GZIP files. See writeHtmlGzipped and writeChunks invocations at the bottom of the page.
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*/
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const fs = require("fs");
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const inliner = require("inliner");
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const zlib = require("zlib");
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const CleanCSS = require("clean-css");
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const MinifyHTML = require("html-minifier-terser").minify;
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const packageJson = require("../package.json");
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/**
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*
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*/
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function hexdump(buffer,isHex=false) {
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let lines = [];
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for (let i = 0; i < buffer.length; i +=(isHex?32:16)) {
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var block;
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let hexArray = [];
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if (isHex) {
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block = buffer.slice(i, i + 32)
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for (let j = 0; j < block.length; j +=2 ) {
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hexArray.push("0x" + block.slice(j,j+2))
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}
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} else {
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block = buffer.slice(i, i + 16); // cut buffer into blocks of 16
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for (let value of block) {
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hexArray.push("0x" + value.toString(16).padStart(2, "0"));
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}
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}
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let hexString = hexArray.join(", ");
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let line = ` ${hexString}`;
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lines.push(line);
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}
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return lines.join(",\n");
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}
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function strReplace(str, search, replacement) {
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return str.split(search).join(replacement);
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}
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function adoptVersionAndRepo(html) {
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let repoUrl = packageJson.repository ? packageJson.repository.url : undefined;
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if (repoUrl) {
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repoUrl = repoUrl.replace(/^git\+/, "");
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repoUrl = repoUrl.replace(/\.git$/, "");
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// Replace we
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html = strReplace(html, "https://github.com/atuline/WLED", repoUrl);
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html = strReplace(html, "https://github.com/Aircoookie/WLED", repoUrl);
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}
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let version = packageJson.version;
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if (version) {
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html = strReplace(html, "##VERSION##", version);
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}
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return html;
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}
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function filter(str, type) {
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str = adoptVersionAndRepo(str);
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if (type === undefined) {
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return str;
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} else if (type == "css-minify") {
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return new CleanCSS({}).minify(str).styles;
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} else if (type == "js-minify") {
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return MinifyHTML('<script>' + str + '</script>', {
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collapseWhitespace: true,
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minifyJS: true,
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continueOnParseError: false,
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removeComments: true,
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}).replace(/<[\/]*script>/g,'');
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} else if (type == "html-minify") {
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return MinifyHTML(str, {
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collapseWhitespace: true,
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maxLineLength: 80,
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minifyCSS: true,
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minifyJS: true,
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continueOnParseError: false,
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removeComments: true,
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});
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} else if (type == "html-minify-ui") {
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return MinifyHTML(str, {
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collapseWhitespace: true,
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conservativeCollapse: true,
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maxLineLength: 80,
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minifyCSS: true,
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minifyJS: true,
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continueOnParseError: false,
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removeComments: true,
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});
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} else {
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console.warn("Unknown filter: " + type);
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return str;
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}
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}
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function writeHtmlGzipped(sourceFile, resultFile, page) {
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console.info("Reading " + sourceFile);
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new inliner(sourceFile, function (error, html) {
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console.info("Inlined " + html.length + " characters");
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html = filter(html, "html-minify-ui");
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console.info("Minified to " + html.length + " characters");
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if (error) {
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console.warn(error);
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throw error;
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}
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html = adoptVersionAndRepo(html);
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zlib.gzip(html, { level: zlib.constants.Z_BEST_COMPRESSION }, function (error, result) {
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if (error) {
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console.warn(error);
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throw error;
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}
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console.info("Compressed " + result.length + " bytes");
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const array = hexdump(result);
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const src = `/*
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* Binary array for the Web UI.
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* gzip is used for smaller size and improved speeds.
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*
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* Please see https://kno.wled.ge/advanced/custom-features/#changing-web-ui
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* to find out how to easily modify the web UI source!
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*/
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// Autogenerated from ${sourceFile}, do not edit!!
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const uint16_t PAGE_${page}_L = ${result.length};
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const uint8_t PAGE_${page}[] PROGMEM = {
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${array}
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};
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`;
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console.info("Writing " + resultFile);
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fs.writeFileSync(resultFile, src);
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});
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});
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}
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function specToChunk(srcDir, s) {
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if (s.method == "plaintext") {
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const buf = fs.readFileSync(srcDir + "/" + s.file);
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const str = buf.toString("utf-8");
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const chunk = `
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// Autogenerated from ${srcDir}/${s.file}, do not edit!!
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const char ${s.name}[] PROGMEM = R"${s.prepend || ""}${filter(str, s.filter)}${
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s.append || ""
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}";
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`;
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return s.mangle ? s.mangle(chunk) : chunk;
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} else if (s.method == "gzip") {
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const buf = fs.readFileSync(srcDir + "/" + s.file);
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var str = buf.toString('utf-8');
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if (s.mangle) str = s.mangle(str);
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const zip = zlib.gzipSync(filter(str, s.filter), { level: zlib.constants.Z_BEST_COMPRESSION });
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const result = hexdump(zip.toString('hex'), true);
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const chunk = `
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// Autogenerated from ${srcDir}/${s.file}, do not edit!!
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const uint16_t ${s.name}_length = ${zip.length};
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const uint8_t ${s.name}[] PROGMEM = {
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${result}
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};
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`;
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return chunk;
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} else if (s.method == "binary") {
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const buf = fs.readFileSync(srcDir + "/" + s.file);
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const result = hexdump(buf);
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const chunk = `
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// Autogenerated from ${srcDir}/${s.file}, do not edit!!
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const uint16_t ${s.name}_length = ${result.length};
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const uint8_t ${s.name}[] PROGMEM = {
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${result}
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};
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`;
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return chunk;
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} else {
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console.warn("Unknown method: " + s.method);
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return undefined;
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}
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}
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function writeChunks(srcDir, specs, resultFile) {
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let src = `/*
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* More web UI HTML source arrays.
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* This file is auto generated, please don't make any changes manually.
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* Instead, see https://kno.wled.ge/advanced/custom-features/#changing-web-ui
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* to find out how to easily modify the web UI source!
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*/
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`;
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specs.forEach((s) => {
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try {
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console.info("Reading " + srcDir + "/" + s.file + " as " + s.name);
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src += specToChunk(srcDir, s);
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} catch (e) {
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console.warn(
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"Failed " + s.name + " from " + srcDir + "/" + s.file,
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e.message.length > 60 ? e.message.substring(0, 60) : e.message
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);
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}
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});
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console.info("Writing " + src.length + " characters into " + resultFile);
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fs.writeFileSync(resultFile, src);
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}
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writeHtmlGzipped("wled00/data/index.htm", "wled00/html_ui.h", 'index');
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writeHtmlGzipped("wled00/data/simple.htm", "wled00/html_simple.h", 'simple');
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/*
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writeChunks(
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"wled00/data",
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[
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{
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file: "simple.css",
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name: "PAGE_simpleCss",
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method: "gzip",
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filter: "css-minify",
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},
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{
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file: "simple.js",
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name: "PAGE_simpleJs",
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method: "gzip",
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filter: "js-minify",
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},
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{
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file: "simple.htm",
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name: "PAGE_simple",
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method: "gzip",
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filter: "html-minify-ui",
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}
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],
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"wled00/html_simplex.h"
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);
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*/
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writeChunks(
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"wled00/data",
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[
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{
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file: "style.css",
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name: "PAGE_settingsCss",
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method: "gzip",
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filter: "css-minify",
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mangle: (str) =>
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str
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.replace("%%","%")
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},
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{
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file: "settings.htm",
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name: "PAGE_settings",
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method: "gzip",
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filter: "html-minify",
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},
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{
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file: "settings_wifi.htm",
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name: "PAGE_settings_wifi",
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method: "gzip",
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filter: "html-minify",
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},
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{
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file: "settings_leds.htm",
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name: "PAGE_settings_leds",
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method: "gzip",
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filter: "html-minify",
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},
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{
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file: "settings_dmx.htm",
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name: "PAGE_settings_dmx",
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method: "gzip",
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filter: "html-minify",
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},
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{
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file: "settings_ui.htm",
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name: "PAGE_settings_ui",
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method: "gzip",
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filter: "html-minify",
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},
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{
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file: "settings_sync.htm",
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name: "PAGE_settings_sync",
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method: "gzip",
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filter: "html-minify",
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},
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{
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file: "settings_time.htm",
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name: "PAGE_settings_time",
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method: "gzip",
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filter: "html-minify",
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},
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{
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file: "settings_sec.htm",
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name: "PAGE_settings_sec",
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method: "gzip",
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filter: "html-minify",
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},
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{
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file: "settings_um.htm",
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name: "PAGE_settings_um",
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method: "gzip",
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filter: "html-minify",
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},
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{
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file: "settings_2D.htm",
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name: "PAGE_settings_2D",
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method: "gzip",
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filter: "html-minify",
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},
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{
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file: "settings_pin.htm",
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name: "PAGE_settings_pin",
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method: "gzip",
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filter: "html-minify"
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}
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],
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"wled00/html_settings.h"
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);
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writeChunks(
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"wled00/data",
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[
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{
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file: "usermod.htm",
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name: "PAGE_usermod",
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method: "gzip",
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filter: "html-minify",
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mangle: (str) =>
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str.replace(/fetch\("http\:\/\/.*\/win/gms, 'fetch("/win'),
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},
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{
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file: "msg.htm",
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name: "PAGE_msg",
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prepend: "=====(",
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append: ")=====",
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method: "plaintext",
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filter: "html-minify",
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mangle: (str) => str.replace(/\<h2\>.*\<\/body\>/gms, "<h2>%MSG%</body>"),
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},
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{
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file: "dmxmap.htm",
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name: "PAGE_dmxmap",
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prepend: "=====(",
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append: ")=====",
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method: "plaintext",
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filter: "html-minify",
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mangle: (str) => `
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#ifdef WLED_ENABLE_DMX
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${str.replace(/function FM\(\)[ ]?\{/gms, "function FM() {%DMXVARS%\n")}
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#else
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const char PAGE_dmxmap[] PROGMEM = R"=====()=====";
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#endif
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`,
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},
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{
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file: "update.htm",
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name: "PAGE_update",
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method: "gzip",
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filter: "html-minify",
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mangle: (str) =>
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str
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.replace(
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/function GetV().*\<\/script\>/gms,
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"</script><script src=\"/settings/s.js?p=9\"></script>"
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)
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},
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{
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file: "welcome.htm",
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name: "PAGE_welcome",
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method: "gzip",
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filter: "html-minify",
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},
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{
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file: "liveview.htm",
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name: "PAGE_liveview",
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method: "gzip",
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filter: "html-minify",
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},
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{
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file: "liveviewws.htm",
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name: "PAGE_liveviewws",
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method: "gzip",
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filter: "html-minify",
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},
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{
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file: "404.htm",
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name: "PAGE_404",
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method: "gzip",
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filter: "html-minify",
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},
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{
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file: "favicon.ico",
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name: "favicon",
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method: "binary",
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},
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{
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file: "iro.js",
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name: "iroJs",
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method: "gzip"
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},
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{
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file: "rangetouch.js",
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name: "rangetouchJs",
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method: "gzip"
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}
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],
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"wled00/html_other.h"
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);
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