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build.js
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build.js
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const fs = require("fs");
const path = require("path");
const {
minify
} = require("terser");
const {
parse
} = require("node-html-parser");
const CleanCSS = require("clean-css");
if (!fs.existsSync('./dist')) {
fs.mkdirSync('./dist', 0744);
fs.mkdirSync('./dist/assets', 0744);
}
var index = fs.readFileSync("./src/index.html", "utf8");
fs.writeFileSync("./dist/index.html", index, "utf8");
var data = [];
data.script = "";
data.style = "";
data.template = "";
const folder = "./src/components/";
let files = fs.readdirSync(folder);
let i = 0;
files.forEach(function(file) {
extractTags(folder + file, data);
i++;
});
var output = new CleanCSS().minify(data.style);
fs.writeFileSync("./dist/assets/app.min.css", output.styles, "utf8");
minifyJs(data);
// helpers
function extractTags(filepath, data) {
var file = fs.readFileSync(filepath, "utf8");
var filename = path.basename(filepath, '.html');
const root = parse(file);
if (root.querySelector("template")) {
data.template +=
'document.querySelectorAll("' + filename + '").forEach(function(e){' +
'e.innerHTML = `' +
root.querySelector("template").innerHTML.replace(/\s\s+/g, ' ') +
'`' +
"})\n";
}
if (root.querySelector("script")) {
data.script += root.querySelector("script").text + "\n";
}
if (root.querySelector("style")) {
data.style += root.querySelector("style").text;
}
//console.log(data);
}
async function minifyJs(data) {
let combined = data.template + ' ' + data.script;
var result = await minify(combined, {
sourceMap: true
});
fs.writeFileSync("./dist/assets/app.min.js", result.code, "utf8");
}