track assets centrally in build script
This commit is contained in:
Bruno Windels
parent
5ad600cd56
commit
07b6458f19
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@ -41,10 +41,6 @@ import postcssUrl from "postcss-url";
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import cssvariables from "postcss-css-variables";
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import flexbugsFixes from "postcss-flexbugs-fixes";
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const PROJECT_ID = "hydrogen";
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const PROJECT_SHORT_NAME = "Hydrogen";
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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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@ -55,21 +51,10 @@ const program = new commander.Command();
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program
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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} = program;
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const {noOffline} = program;
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const offline = !noOffline;
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const olmFiles = {
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wasm: "olm-4289088762.wasm",
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legacyBundle: "olm_legacy-3232457086.js",
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wasmBundle: "olm-1421970081.js",
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};
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// IDEA: how about instead of assetPaths we maintain a mapping between the source file and the target file
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// so throughout the build script we can refer to files by their source name
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async function build() {
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// only used for CSS for now, using legacy for all targets for now
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const legacy = true;
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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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@ -82,46 +67,23 @@ async function build() {
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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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// copy assets
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await copyFolder(path.join(projectDir, "lib/olm/"), targetDir);
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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 buildJs("src/main.js", `${PROJECT_ID}.js`);
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const jsLegacyBundlePath = await buildJsLegacy("src/main.js", `${PROJECT_ID}-legacy.js`, 'src/legacy-extras.js');
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const jsWorkerPath = await buildWorkerJsLegacy("src/worker.js", `worker.js`);
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const cssBundlePaths = await buildCssBundles(legacy ? buildCssLegacy : buildCss, themes, themeAssets);
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let manifestPath;
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const assetPaths = createAssetPaths(jsBundlePath, jsLegacyBundlePath, jsWorkerPath,
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cssBundlePaths, themeAssets);
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const assets = new AssetMap(targetDir);
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// copy olm assets
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const olmAssets = await copyFolder(path.join(projectDir, "lib/olm/"), assets.directory);
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assets.addSubMap(olmAssets);
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await buildJs("src/main.js", code => assets.create(`hydrogen.js`, code));
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await buildJsLegacy("src/main.js", code => assets.create(`hydrogen-legacy.js`, code), 'src/legacy-extras.js');
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await buildWorkerJsLegacy("src/worker.js", code => assets.create(`worker.js`, code));
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// creates the directories where the theme css bundles are placed in,
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// and writes to assets, so the build bundles can translate them, so do it first
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await copyThemeAssets(themes, assets);
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await buildCssBundles(buildCssLegacy, themes, assets);
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if (offline) {
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manifestPath = await buildOffline(version, assetPaths);
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await buildOffline(version, assets);
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}
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await buildHtml(doc, version, assetPaths, manifestPath);
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console.log(`built ${PROJECT_ID} ${version} successfully`);
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}
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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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function createAssetPaths(jsBundlePath, jsLegacyBundlePath, jsWorkerPath, cssBundlePaths, themeAssets) {
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return {
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jsBundle: () => trim(jsBundlePath),
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jsLegacyBundle: () => trim(jsLegacyBundlePath),
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jsWorker: () => trim(jsWorkerPath),
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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: () => Object.values(themeAssets).map(a => trim(a)),
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};
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await buildHtml(doc, version, assets);
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// 3 unhashed assets: index.html, manifest.appcache and sw.js
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console.log(`built hydrogen ${version} successfully with ${assets.all().length + 3} files`);
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}
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async function findThemes(doc, callback) {
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@ -148,36 +110,38 @@ async function createDirs(targetDir, themes) {
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}
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}
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async function copyThemeAssets(themes, legacy) {
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const assets = {};
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async function copyThemeAssets(themes, assets) {
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for (const theme of themes) {
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const themeDstFolder = path.join(targetDir, `themes/${theme}`);
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const themeSrcFolder = path.join(cssSrcDir, `themes/${theme}`);
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const themeAssets = await copyFolder(themeSrcFolder, themeDstFolder, file => {
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const isUnneededFont = legacy ? file.endsWith(".woff2") : file.endsWith(".woff");
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return !file.endsWith(".css") && !isUnneededFont;
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return !file.endsWith(".css");
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});
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Object.assign(assets, themeAssets);
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assets.addSubMap(themeAssets);
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}
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return assets;
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}
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async function buildHtml(doc, version, assetPaths, manifestPath) {
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async function buildHtml(doc, version, assets) {
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// transform html file
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// change path to main.css to css bundle
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doc("link[rel=stylesheet]:not([title])").attr("href", assetPaths.cssMainBundle());
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doc("link[rel=stylesheet]:not([title])").attr("href", assets.resolve(`hydrogen.css`));
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// change paths to all theme stylesheets
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findThemes(doc, (themeName, theme) => {
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theme.attr("href", assetPaths.cssThemeBundle(themeName));
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theme.attr("href", assets.resolve(`themes/${themeName}/bundle.css`));
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});
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const pathsJSON = JSON.stringify({
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worker: assetPaths.jsWorker(),
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olm: olmFiles
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worker: assets.resolve(`worker.js`),
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olm: {
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wasm: assets.resolve("olm.wasm"),
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legacyBundle: assets.resolve("olm_legacy.js"),
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wasmBundle: assets.resolve("olm.js"),
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}
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});
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doc("script#main").replaceWith(
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`<script type="module">import {main} from "./${assetPaths.jsBundle()}"; main(document.body, ${pathsJSON});</script>` +
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`<script type="text/javascript" nomodule src="${assetPaths.jsLegacyBundle()}"></script>` +
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`<script type="text/javascript" nomodule>${PROJECT_ID}Bundle.main(document.body, ${pathsJSON}, ${PROJECT_ID}Bundle.legacyExtras);</script>`);
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`<script type="module">import {main} from "./${assets.resolve(`hydrogen.js`)}"; main(document.body, ${pathsJSON});</script>` +
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`<script type="text/javascript" nomodule src="${assets.resolve(`hydrogen-legacy.js`)}"></script>` +
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`<script type="text/javascript" nomodule>hydrogenBundle.main(document.body, ${pathsJSON}, hydrogenBundle.legacyExtras);</script>`);
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removeOrEnableScript(doc("script#service-worker"), offline);
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const versionScript = doc("script#version");
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@ -188,12 +152,12 @@ async function buildHtml(doc, version, assetPaths, manifestPath) {
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if (offline) {
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doc("html").attr("manifest", "manifest.appcache");
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doc("head").append(`<link rel="manifest" href="${manifestPath.substr(targetDir.length)}">`);
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doc("head").append(`<link rel="manifest" href="${assets.resolve("manifest.json")}">`);
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}
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await fs.writeFile(path.join(targetDir, "index.html"), doc.html(), "utf8");
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}
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async function buildJs(inputFile, outputName) {
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async function buildJs(inputFile, outputNameFn) {
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// create js bundle
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const bundle = await rollup({
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input: inputFile,
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@ -202,15 +166,13 @@ async function buildJs(inputFile, outputName) {
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const {output} = await bundle.generate({
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format: 'es',
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// TODO: can remove this?
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name: `${PROJECT_ID}Bundle`
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name: `hydrogenBundle`
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});
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const code = output[0].code;
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const bundlePath = resource(outputName, code);
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await fs.writeFile(bundlePath, code, "utf8");
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return bundlePath;
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await fs.writeFile(outputNameFn(code), code, "utf8");
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}
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async function buildJsLegacy(inputFile, outputName, extraFile, polyfillFile) {
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async function buildJsLegacy(inputFile, outputNameFn, extraFile, polyfillFile) {
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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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@ -245,35 +207,26 @@ async function buildJsLegacy(inputFile, outputName, extraFile, polyfillFile) {
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const bundle = await rollup(rollupConfig);
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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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name: `hydrogenBundle`
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});
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const code = output[0].code;
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const bundlePath = resource(outputName, code);
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await fs.writeFile(bundlePath, code, "utf8");
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return bundlePath;
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await fs.writeFile(outputNameFn(code), code, "utf8");
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}
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function buildWorkerJsLegacy(inputFile, outputName) {
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function buildWorkerJsLegacy(inputFile, outputNameFn) {
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const polyfillFile = 'src/worker-polyfill.js';
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return buildJsLegacy(inputFile, outputName, null, polyfillFile);
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return buildJsLegacy(inputFile, outputNameFn, null, polyfillFile);
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}
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async function buildOffline(version, assetPaths) {
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// write web manifest
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async function buildOffline(version, assets) {
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const webManifest = JSON.parse(await fs.readFile(path.join(projectDir, "assets/manifest.json"), "utf8"));
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// copy manifest icons
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for (const icon of webManifest.icons) {
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let iconData = await fs.readFile(path.join(projectDir, icon.src));
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let iconPath = resource(path.basename(icon.src), iconData);
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await fs.writeFile(iconPath, iconData);
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icon.src = trim(iconPath);
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const iconTargetPath = path.basename(icon.src);
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await fs.writeFile(assets.create(iconTargetPath, iconData), iconData);
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icon.src = assets.resolve(iconTargetPath);
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}
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// write offline availability
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const offlineFiles = [
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assetPaths.cssMainBundle(),
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"index.html",
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].concat(assetPaths.cssThemeBundles())
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.concat(webManifest.icons.map(i => i.src));
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// write appcache manifest
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const appCacheLines = [
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`CACHE MANIFEST`,
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@ -282,53 +235,51 @@ async function buildOffline(version, assetPaths) {
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`"*"`,
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`CACHE`,
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];
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appCacheLines.push(assetPaths.jsLegacyBundle(), ...offlineFiles);
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const swOfflineFiles = [assetPaths.jsBundle(), ...offlineFiles];
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appCacheLines.push(...assets.allWithout(["hydrogen.js"]));
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const swOfflineFiles = assets.allWithout(["hydrogen-legacy.js", "olm_legacy.js"]);
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const appCacheManifest = appCacheLines.join("\n") + "\n";
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await fs.writeFile(path.join(targetDir, "manifest.appcache"), appCacheManifest, "utf8");
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// write service worker
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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(swOfflineFiles));
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swSource = swSource.replace(`"%%CACHE_FILES%%"`, JSON.stringify(assetPaths.otherAssets()));
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// service worker should not have a hashed name as it is polled by the browser for updates
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await fs.writeFile(path.join(targetDir, "sw.js"), swSource, "utf8");
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const manifestJson = JSON.stringify(webManifest);
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const manifestPath = resource("manifest.json", manifestJson);
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await fs.writeFile(manifestPath, manifestJson, "utf8");
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return manifestPath;
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await fs.writeFile(assets.create("manifest.json", manifestJson), manifestJson, "utf8");
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}
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async function buildCssBundles(buildFn, themes, themeAssets) {
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async function buildCssBundles(buildFn, themes, assets) {
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const bundleCss = await buildFn(path.join(cssSrcDir, "main.css"));
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const mainDstPath = resource(`${PROJECT_ID}.css`, bundleCss);
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await fs.writeFile(mainDstPath, bundleCss, "utf8");
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const bundlePaths = {main: mainDstPath, themes: {}};
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await fs.writeFile(assets.create(`hydrogen.css`, bundleCss), bundleCss, "utf8");
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for (const theme of themes) {
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const urlBase = path.join(targetDir, `themes/${theme}/`);
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const themeRelPath = `themes/${theme}/`;
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const themeRoot = path.join(cssSrcDir, themeRelPath);
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const assetUrlMapper = ({absolutePath}) => {
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const hashedDstPath = themeAssets[absolutePath];
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if (hashedDstPath && hashedDstPath.startsWith(urlBase)) {
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return hashedDstPath.substr(urlBase.length);
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if (!absolutePath.startsWith(themeRoot)) {
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throw new Error("resource is out of theme directory: " + absolutePath);
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}
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const relPath = absolutePath.substr(themeRoot.length);
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const hashedDstPath = assets.resolve(path.join(themeRelPath, relPath));
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if (hashedDstPath) {
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return hashedDstPath.substr(themeRelPath.length);
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}
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};
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const themeCss = await buildFn(path.join(cssSrcDir, `themes/${theme}/theme.css`), assetUrlMapper);
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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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const themeCss = await buildFn(path.join(themeRoot, `theme.css`), assetUrlMapper);
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await fs.writeFile(assets.create(path.join(themeRelPath, `bundle.css`), themeCss), themeCss, "utf8");
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}
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return bundlePaths;
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}
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async function buildCss(entryPath, urlMapper = null) {
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const preCss = await fs.readFile(entryPath, "utf8");
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const options = [postcssImport];
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if (urlMapper) {
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options.push(postcssUrl({url: urlMapper}));
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}
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const cssBundler = postcss(options);
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const result = await cssBundler.process(preCss, {from: entryPath});
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return result.css;
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}
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// async function buildCss(entryPath, urlMapper = null) {
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// const preCss = await fs.readFile(entryPath, "utf8");
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// const options = [postcssImport];
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// if (urlMapper) {
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// options.push(postcssUrl({url: urlMapper}));
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// }
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// const cssBundler = postcss(options);
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// const result = await cssBundler.process(preCss, {from: entryPath});
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// return result.css;
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// }
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async function buildCssLegacy(entryPath, urlMapper = null) {
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const preCss = await fs.readFile(entryPath, "utf8");
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@ -363,35 +314,21 @@ async function removeDirIfExists(targetDir) {
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}
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}
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async function copyFolder(srcRoot, dstRoot, filter) {
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const assetPaths = {};
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async function copyFolder(srcRoot, dstRoot, filter, assets = null) {
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assets = assets || new AssetMap(dstRoot);
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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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Object.assign(assetPaths, await copyFolder(srcPath, dstPath, filter));
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await copyFolder(srcPath, dstPath, filter, assets);
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} else if ((dirEnt.isFile() || dirEnt.isSymbolicLink()) && (!filter || filter(srcPath))) {
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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[srcPath] = hashedDstPath;
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await fs.writeFile(assets.create(dstPath, content), content);
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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 (!path.isAbsolute(relPath)) {
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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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return assets;
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}
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function contentHash(str) {
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@ -400,5 +337,69 @@ function contentHash(str) {
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return hasher.digest();
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}
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class AssetMap {
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constructor(targetDir) {
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// remove last / if any, so substr in create works well
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this._targetDir = path.resolve(targetDir);
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this._assets = new Map();
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}
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_toRelPath(resourcePath) {
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let relPath = resourcePath;
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if (path.isAbsolute(resourcePath)) {
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if (!resourcePath.startsWith(this._targetDir)) {
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throw new Error(`absolute path ${resourcePath} that is not within target dir ${this._targetDir}`);
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}
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relPath = resourcePath.substr(this._targetDir.length + 1); // + 1 for the /
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}
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return relPath;
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}
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create(resourcePath, content) {
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const relPath = this._toRelPath(resourcePath);
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const hash = contentHash(Buffer.from(content));
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const dir = path.dirname(relPath);
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const extname = path.extname(relPath);
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const basename = path.basename(relPath, extname);
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const dstRelPath = path.join(dir, `${basename}-${hash}${extname}`);
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this._assets.set(relPath, dstRelPath);
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return path.join(this._targetDir, dstRelPath);
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}
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get directory() {
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return this._targetDir;
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}
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resolve(resourcePath) {
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const relPath = this._toRelPath(resourcePath);
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const result = this._assets.get(relPath);
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if (!result) {
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throw new Error(`unknown path: ${relPath}, only know ${Array.from(this._assets.keys()).join(", ")}`);
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}
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return result;
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}
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addSubMap(assetMap) {
|
||||
if (!assetMap.directory.startsWith(this.directory)) {
|
||||
throw new Error(`map directory doesn't start with this directory: ${assetMap.directory} ${this.directory}`);
|
||||
}
|
||||
console.log("adding submap from", assetMap.directory, this.directory);
|
||||
const relSubRoot = assetMap.directory.substr(this.directory.length + 1);
|
||||
for (const [key, value] of assetMap._assets.entries()) {
|
||||
this._assets.set(path.join(relSubRoot, key), path.join(relSubRoot, value));
|
||||
}
|
||||
}
|
||||
|
||||
all() {
|
||||
return Array.from(this._assets.values());
|
||||
}
|
||||
|
||||
allWithout(excluded) {
|
||||
excluded = excluded.map(p => this.resolve(p));
|
||||
return this.all().filter(p => excluded.indexOf(p) === -1);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
build().catch(err => console.error(err));
|
||||
|
|
|
|||
Reference in a new issue