forked from mystiq/hydrogen-web
add content hashes to build assets
This commit is contained in:
Bruno Windels
parent
661bd65229
commit
044360afaa
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@ -29,6 +29,7 @@
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"@rollup/plugin-multi-entry": "^3.0.1",
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"@rollup/plugin-node-resolve": "^8.4.0",
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"cheerio": "^1.0.0-rc.3",
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"commander": "^6.0.0",
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"core-js": "^3.6.5",
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"finalhandler": "^1.1.1",
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"impunity": "^0.0.11",
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@ -39,6 +40,7 @@
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"postcss-import": "^12.0.1",
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"regenerator-runtime": "^0.13.7",
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"rollup": "^1.15.6",
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"serve-static": "^1.13.2"
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"serve-static": "^1.13.2",
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"xxhash": "^0.3.0"
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}
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}
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@ -19,11 +19,13 @@ import cheerio from "cheerio";
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import fsRoot from "fs";
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const fs = fsRoot.promises;
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import path from "path";
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import XXHash from 'xxhash';
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import rollup from 'rollup';
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import postcss from "postcss";
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import postcssImport from "postcss-import";
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import { fileURLToPath } from 'url';
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import { dirname } from 'path';
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import commander from "commander";
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// needed for legacy bundle
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import babel from '@rollup/plugin-babel';
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// needed to find the polyfill modules in the main-legacy.js bundle
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@ -43,32 +45,20 @@ const PROJECT_NAME = "Hydrogen Chat";
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const __filename = fileURLToPath(import.meta.url);
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const __dirname = dirname(__filename);
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const projectDir = path.join(__dirname, "../");
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const cssDir = path.join(projectDir, "src/ui/web/css/");
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const targetDir = path.join(projectDir, "target");
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const cssSrcDir = path.join(projectDir, "src/ui/web/css/");
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const targetDir = path.join(projectDir, "target/");
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const {debug, noOffline, legacy} = process.argv.reduce((params, param) => {
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if (param.startsWith("--")) {
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params[param.substr(2)] = true;
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}
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return params;
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}, {
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debug: false,
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noOffline: false,
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legacy: false
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});
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const program = new commander.Command();
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program
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.option("--legacy", "make a build for IE11")
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.option("--no-offline", "make a build without a service worker or appcache manifest")
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program.parse(process.argv);
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const {debug, noOffline, legacy} = program;
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const offline = !noOffline;
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async function build() {
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// get version number
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const version = JSON.parse(await fs.readFile(path.join(projectDir, "package.json"), "utf8")).version;
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// clear target dir
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await removeDirIfExists(targetDir);
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await fs.mkdir(targetDir);
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let bundleName = `${PROJECT_ID}.js`;
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if (legacy) {
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bundleName = `${PROJECT_ID}-legacy.js`;
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}
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const devHtml = await fs.readFile(path.join(projectDir, "index.html"), "utf8");
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const doc = cheerio.load(devHtml);
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@ -76,25 +66,40 @@ async function build() {
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findThemes(doc, themeName => {
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themes.push(themeName);
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});
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// clear target dir
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await removeDirIfExists(targetDir);
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await createDirs(targetDir, themes);
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// also creates the directories where the theme css bundles are placed in,
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// so do it first
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const themeAssets = await copyThemeAssets(themes, legacy);
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const jsBundlePath = await (legacy ? buildJsLegacy() : buildJs());
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const cssBundlePaths = await buildCssBundles(legacy ? buildCssLegacy : buildCss, themes);
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const assetPaths = createAssetPaths(jsBundlePath, cssBundlePaths, themeAssets);
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await buildHtml(doc, version, bundleName);
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if (legacy) {
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await buildJsLegacy(bundleName);
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} else {
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await buildJs(bundleName);
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}
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await buildCssBundles(legacy ? buildCssLegacy : buildCss, themes);
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if (offline) {
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await buildOffline(version, bundleName, themeAssets);
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await buildOffline(version, assetPaths);
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}
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await buildHtml(doc, version, assetPaths);
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console.log(`built ${PROJECT_ID}${legacy ? " legacy" : ""} ${version} successfully`);
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}
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function createAssetPaths(jsBundlePath, cssBundlePaths, themeAssets) {
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function trim(path) {
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if (!path.startsWith(targetDir)) {
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throw new Error("invalid target path: " + targetDir);
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}
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return path.substr(targetDir.length);
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}
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return {
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jsBundle: () => trim(jsBundlePath),
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cssMainBundle: () => trim(cssBundlePaths.main),
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cssThemeBundle: themeName => trim(cssBundlePaths.themes[themeName]),
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cssThemeBundles: () => Object.values(cssBundlePaths.themes).map(a => trim(a)),
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otherAssets: () => themeAssets.map(a => trim(a))
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};
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}
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async function findThemes(doc, callback) {
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doc("link[rel~=stylesheet][title]").each((i, el) => {
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const theme = doc(el);
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@ -110,37 +115,39 @@ async function findThemes(doc, callback) {
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});
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}
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async function createDirs(targetDir, themes) {
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await fs.mkdir(targetDir);
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const themeDir = path.join(targetDir, "themes");
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await fs.mkdir(themeDir);
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for (const theme of themes) {
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await fs.mkdir(path.join(themeDir, theme));
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}
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}
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async function copyThemeAssets(themes, legacy) {
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const assets = [];
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// create theme directories and copy assets
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await fs.mkdir(path.join(targetDir, "themes"));
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for (const theme of themes) {
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assets.push(`themes/${theme}/bundle.css`);
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const themeDstFolder = path.join(targetDir, `themes/${theme}`);
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await fs.mkdir(themeDstFolder);
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const themeSrcFolder = path.join(cssDir, `themes/${theme}`);
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await copyFolder(themeSrcFolder, themeDstFolder, file => {
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const themeSrcFolder = path.join(cssSrcDir, `themes/${theme}`);
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const themeAssets = await copyFolder(themeSrcFolder, themeDstFolder, file => {
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const isUnneededFont = legacy ? file.endsWith(".woff2") : file.endsWith(".woff");
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if (!file.endsWith(".css") && !isUnneededFont) {
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assets.push(file.substr(cssDir.length));
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return true;
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}
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return false;
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return !file.endsWith(".css") && !isUnneededFont;
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});
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assets.push(...themeAssets);
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}
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return assets;
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}
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async function buildHtml(doc, version, bundleName) {
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async function buildHtml(doc, version, assetPaths) {
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// transform html file
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// change path to main.css to css bundle
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doc("link[rel=stylesheet]:not([title])").attr("href", `${PROJECT_ID}.css`);
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doc("link[rel=stylesheet]:not([title])").attr("href", assetPaths.cssMainBundle());
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// change paths to all theme stylesheets
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findThemes(doc, (themeName, theme) => {
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theme.attr("href", `themes/${themeName}/bundle.css`);
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theme.attr("href", assetPaths.cssThemeBundle(themeName));
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});
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doc("script#main").replaceWith(
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`<script type="text/javascript" src="${bundleName}"></script>` +
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`<script type="text/javascript" src="${assetPaths.jsBundle()}"></script>` +
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`<script type="text/javascript">${PROJECT_ID}Bundle.main(document.body);</script>`);
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removeOrEnableScript(doc("script#service-worker"), offline);
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@ -157,17 +164,20 @@ async function buildHtml(doc, version, bundleName) {
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await fs.writeFile(path.join(targetDir, "index.html"), doc.html(), "utf8");
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}
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async function buildJs(bundleName) {
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async function buildJs() {
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// create js bundle
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const bundle = await rollup.rollup({input: 'src/main.js'});
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await bundle.write({
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file: path.join(targetDir, bundleName),
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const {output} = await bundle.generate({
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format: 'iife',
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name: `${PROJECT_ID}Bundle`
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});
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const code = output[0].code;
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const bundlePath = resource(`${PROJECT_ID}.js`, code);
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await fs.writeFile(bundlePath, code, "utf8");
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return bundlePath;
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}
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async function buildJsLegacy(bundleName) {
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async function buildJsLegacy() {
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// compile down to whatever IE 11 needs
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const babelPlugin = babel.babel({
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babelHelpers: 'bundled',
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@ -189,24 +199,24 @@ async function buildJsLegacy(bundleName) {
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plugins: [multi(), commonjs(), nodeResolve(), babelPlugin]
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};
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const bundle = await rollup.rollup(rollupConfig);
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await bundle.write({
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file: path.join(targetDir, bundleName),
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const {output} = await bundle.generate({
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format: 'iife',
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name: `${PROJECT_ID}Bundle`
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});
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const code = output[0].code;
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const bundlePath = resource(`${PROJECT_ID}-legacy.js`, code);
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await fs.writeFile(bundlePath, code, "utf8");
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return bundlePath;
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}
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async function buildOffline(version, bundleName, themeAssets) {
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const {offlineAssets, cacheAssets} = themeAssets.reduce((result, asset) => {
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if (asset.endsWith(".css")) {
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result.offlineAssets.push(asset);
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} else {
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result.cacheAssets.push(asset);
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}
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return result;
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}, {offlineAssets: [], cacheAssets: []});
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async function buildOffline(version, assetPaths) {
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// write offline availability
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const offlineFiles = [bundleName, `${PROJECT_ID}.css`, "index.html", "icon-192.png"].concat(offlineAssets);
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const offlineFiles = [
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assetPaths.jsBundle(),
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assetPaths.cssMainBundle(),
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"index.html",
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"icon-192.png",
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].concat(assetPaths.cssThemeBundles());
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// write appcache manifest
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const manifestLines = [
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@ -223,7 +233,7 @@ async function buildOffline(version, bundleName, themeAssets) {
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let swSource = await fs.readFile(path.join(projectDir, "src/service-worker.template.js"), "utf8");
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swSource = swSource.replace(`"%%VERSION%%"`, `"${version}"`);
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swSource = swSource.replace(`"%%OFFLINE_FILES%%"`, JSON.stringify(offlineFiles));
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swSource = swSource.replace(`"%%CACHE_FILES%%"`, JSON.stringify(cacheAssets));
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swSource = swSource.replace(`"%%CACHE_FILES%%"`, JSON.stringify(assetPaths.otherAssets()));
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await fs.writeFile(path.join(targetDir, "sw.js"), swSource, "utf8");
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// write web manifest
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const webManifest = {
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@ -235,33 +245,37 @@ async function buildOffline(version, bundleName, themeAssets) {
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};
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await fs.writeFile(path.join(targetDir, "manifest.json"), JSON.stringify(webManifest), "utf8");
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// copy icon
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// should this icon have a content hash as well?
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let icon = await fs.readFile(path.join(projectDir, "icon.png"));
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await fs.writeFile(path.join(targetDir, "icon-192.png"), icon);
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}
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async function buildCssBundles(buildFn, themes) {
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const cssMainFile = path.join(cssDir, "main.css");
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await buildFn(cssMainFile, path.join(targetDir, `${PROJECT_ID}.css`));
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const bundleCss = await buildFn(path.join(cssSrcDir, "main.css"));
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const mainDstPath = resource(`${PROJECT_ID}.css`, bundleCss);
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await fs.writeFile(mainDstPath, bundleCss, "utf8");
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const bundlePaths = {main: mainDstPath, themes: {}};
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for (const theme of themes) {
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await buildFn(
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path.join(cssDir, `themes/${theme}/theme.css`),
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path.join(targetDir, `themes/${theme}/bundle.css`)
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);
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const themeCss = await buildFn(path.join(cssSrcDir, `themes/${theme}/theme.css`));
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const themeDstPath = resource(`themes/${theme}/bundle.css`, themeCss);
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await fs.writeFile(themeDstPath, themeCss, "utf8");
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bundlePaths.themes[theme] = themeDstPath;
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}
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return bundlePaths;
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}
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async function buildCss(entryPath, bundlePath) {
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async function buildCss(entryPath) {
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const preCss = await fs.readFile(entryPath, "utf8");
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const cssBundler = postcss([postcssImport]);
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const result = await cssBundler.process(preCss, {from: entryPath});
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await fs.writeFile(bundlePath, result.css, "utf8");
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return result.css;
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}
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async function buildCssLegacy(entryPath, bundlePath) {
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async function buildCssLegacy(entryPath) {
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const preCss = await fs.readFile(entryPath, "utf8");
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const cssBundler = postcss([postcssImport, cssvariables(), flexbugsFixes()]);
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const result = await cssBundler.process(preCss, {from: entryPath});
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await fs.writeFile(bundlePath, result.css, "utf8");
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return result.css;
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}
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function removeOrEnableScript(scriptNode, enable) {
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@ -283,17 +297,41 @@ async function removeDirIfExists(targetDir) {
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}
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async function copyFolder(srcRoot, dstRoot, filter) {
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const assetPaths = [];
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const dirEnts = await fs.readdir(srcRoot, {withFileTypes: true});
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for (const dirEnt of dirEnts) {
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const dstPath = path.join(dstRoot, dirEnt.name);
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const srcPath = path.join(srcRoot, dirEnt.name);
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if (dirEnt.isDirectory()) {
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await fs.mkdir(dstPath);
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await copyFolder(srcPath, dstPath, filter);
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assetPaths.push(... await copyFolder(srcPath, dstPath, filter));
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} else if (dirEnt.isFile() && filter(srcPath)) {
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await fs.copyFile(srcPath, dstPath);
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const content = await fs.readFile(srcPath);
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const hashedDstPath = resource(dstPath, content);
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await fs.writeFile(hashedDstPath, content);
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assetPaths.push(hashedDstPath);
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}
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}
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return assetPaths;
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}
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function resource(relPath, content) {
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let fullPath = relPath;
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if (!relPath.startsWith("/")) {
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fullPath = path.join(targetDir, relPath);
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}
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const hash = contentHash(Buffer.from(content));
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const dir = path.dirname(fullPath);
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const extname = path.extname(fullPath);
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const basename = path.basename(fullPath, extname);
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return path.join(dir, `${basename}-${hash}${extname}`);
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}
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function contentHash(str) {
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var hasher = new XXHash(0);
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hasher.update(str);
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return hasher.digest();
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}
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build().catch(err => console.error(err));
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