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hydrogen-web/scripts/build.mjs

99 lines
3.4 KiB
JavaScript

import cheerio from "cheerio";
import fsRoot from "fs";
const fs = fsRoot.promises;
import path from "path";
import rollup from 'rollup';
import postcss from "postcss";
import postcssImport from "postcss-import";
import { fileURLToPath } from 'url';
import { dirname } from 'path';
const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);
const projectDir = path.join(__dirname, "../");
const targetDir = path.join(projectDir, "target");
const jsPostfix = `
window.DEBUG = true;
let buf = "";
console.error = (...params) => {
const lastLines = "...\\n" + buf.split("\\n").slice(-10).join("\\n");
// buf = buf + "ERR " + params.join(" ") + "\\n";
// const location = new Error().stack.split("\\n")[2];
alert(params.join(" ") +"\\n...\\n" + lastLines);
};
console.log = console.info = console.warn = (...params) => {
buf = buf + params.join(" ") + "\\n";
};
`;
const jsSuffix = `
setTimeout(() => {
const showlogs = document.getElementById("showlogs");
showlogs.addEventListener("click", () => {
const lastLines = "...\\n" + buf.split("\\n").slice(-20).join("\\n");
alert(lastLines);
}, true);
showlogs.innerText = "Show last 20 log lines";
}, 10000);
`;
async function build() {
// get version number
const version = JSON.parse(await fs.readFile(path.join(projectDir, "package.json"), "utf8")).version;
// clear target dir
await removeDirIfExists(targetDir);
await fs.mkdir(targetDir);
// transform html file
const devHtml = await fs.readFile(path.join(projectDir, "index.html"), "utf8");
const doc = cheerio.load(devHtml);
doc("link[rel=stylesheet]").attr("href", "brawl.css");
// doc("html").attr("manifest", "manifest.appcache");
doc("script").replaceWith(
`<script type="text/javascript" src="brawl.js"></script>` +
`<script type="text/javascript">${jsPostfix} main(document.body); ${jsSuffix}</script>`);
await fs.writeFile(path.join(targetDir, "index.html"), doc.html(), "utf8");
// create js bundle
const rollupConfig = {
input: 'src/main.js',
output: {
file: path.join(targetDir, "brawl.js"),
format: 'iife',
name: 'main'
}
};
const bundle = await rollup.rollup(rollupConfig);
await bundle.write(rollupConfig);
// create css bundle
const cssMainFile = path.join(projectDir, "src/ui/web/css/main.css");
const preCss = await fs.readFile(cssMainFile, "utf8");
const cssBundler = postcss([postcssImport]);
const postCss = await cssBundler.process(preCss, {from: cssMainFile});
await fs.writeFile(path.join(targetDir, "brawl.css"), postCss, "utf8");
// write appcache manifest
const manifestLines = [
`CACHE MANIFEST`,
`# v${version}`,
"brawl.js",
"brawl.css",
"index.html",
""
];
await fs.writeFile(path.join(targetDir, "manifest.appcache"), manifestLines.join("\n"), "utf8");
console.log(`built brawl ${version} successfully`);
}
async function removeDirIfExists(targetDir) {
try {
const files = await fs.readdir(targetDir);
await Promise.all(files.map(filename => fs.unlink(path.join(targetDir, filename))));
await fs.rmdir(targetDir);
} catch (err) {
if (err.code !== "ENOENT") {
throw err;
}
}
}
build().catch(err => console.error(err));