Global asset management

lib/assets.ts

@@ -0,0 +1,27 @@
+import { globSync } from "glob";
+import { readFileSync } from "node:fs";
+import { env } from "node:process";
+import { join } from "node:path";
+
+export const assetMap: Map<string, string> = new Map();
+
+export function reloadAssets() {
+    assetMap.clear();
+
+    globSync("dist/_assets/*.manifest")
+        .map(
+            (manifest) =>
+                JSON.parse(readFileSync(manifest).toString()) as { [orig: string]: string },
+        )
+        .forEach((mapping) =>
+            Object.entries(mapping).forEach(([orig, hashed]) => assetMap.set(orig, hashed)),
+        );
+}
+
+export function asset(path: string): string {
+    const realPath = assetMap.has(path) ? assetMap.get(path) : path;
+
+    return env.ASSETS_HOSTS
+        ? new URL(realPath, env.ASSETS_HOSTS).toString()
+        : join("/_assets/", realPath);
+}

lib/hash.ts

@@ -1,19 +1,8 @@
 import { Transform } from "node:stream";
 import { createHash } from "node:crypto";
 import File from "vinyl";
-import { globSync } from "glob";
-import { readFileSync } from "node:fs";
 import { PRODUCTION } from "./environment.js";
 
-export function readAssetManifest(): { [entry: string]: string } {
-    return Object.assign(
-        {},
-        ...globSync("dist/_assets/*.manifest").map((path) =>
-            JSON.parse(readFileSync(path).toString()),
-        ),
-    );
-}
-
 function fileHash(buffer: Buffer) {
     const hash = createHash("sha256");
     hash.update(buffer.toString());

lib/postcss/hashes.ts

@@ -1,16 +1,16 @@
 import Postcss from "postcss";
-import { readAssetManifest } from "../hash.js";
+import { reloadAssets, assetMap } from "../assets.js";
 
-export default (opts: any = {}): Postcss.Plugin => {
+export default (): Postcss.Plugin => {
     return {
         postcssPlugin: "postcss-hashes",
         Once() {
-            opts._mappings = readAssetManifest();
+            reloadAssets();
         },
         Declaration(decl: Postcss.Declaration) {
             decl.value = decl.value.replace(/url\("([^"]+)"\)/, (v, url) => {
-                if (opts._mappings.hasOwnProperty(url)) {
+                if (assetMap.has(url)) {
-                    return v.replace(url, opts._mappings[url]);
+                    return v.replace(url, assetMap.get(url));
                 }
 
                 return v;

lib/tasks/articles.ts

@@ -1,5 +1,4 @@
 import { readFileSync } from "node:fs";
-import { env } from "node:process";
 import { join, basename, dirname } from "node:path";
 import { Transform } from "node:stream";
 import asciidoctor, { Document } from "asciidoctor";
@@ -14,13 +13,13 @@ import { PRODUCTION, DEFAULT_DATE } from "../environment.js";
 import rehypeExternalLinks from "rehype-external-links";
 import visit from "unist-util-visit";
 import { src, dest } from "gulp";
-import { readAssetManifest } from "../hash.js";
 import renderLayout from "../../src/layout.js";
 import renderArticleLayout from "../../src/article.js";
 import renderIndex from "../../src/index.js";
 import { renderToStaticMarkup } from "preact-render-to-string";
 import { SITE_TITLE, SITE_DESCRIPTION } from "../../src/constants.js";
 import { JSX } from "preact/jsx-runtime";
+import { reloadAssets } from "../assets.js";
 
 const Asciidoctor = asciidoctor();
 const EXTENSION_REGISTRY = Asciidoctor.Extensions.create();
@@ -60,17 +59,7 @@ function renderDocument(root: JSX.Element): Buffer {
 
 function renderArticle() {
     const allArticles: [string, DateTime, Document][] = [];
-    const assetManifest = readAssetManifest();
+    reloadAssets();
-
-    const asset = (path: string) => {
-        if (assetManifest.hasOwnProperty(path)) {
-            path = assetManifest[path];
-        }
-
-        return env.ASSETS_HOSTS
-            ? new URL(path, env.ASSETS_HOSTS).toString()
-            : join("/_assets/", path);
-    };
 
     return new Transform({
         readableObjectMode: true,
@@ -98,7 +87,6 @@ function renderArticle() {
                     .use(rehypeStringify)
                     .process(article.convert());
                 const content = renderLayout({
-                    asset,
                     title: article.getDoctitle({}) as string,
                     meta: {
                         description: article.getAttribute("description"),
@@ -112,7 +100,6 @@ function renderArticle() {
                     },
                     Content: () =>
                         renderArticleLayout({
-                            asset,
                             article,
                             date,
                             body: vfile.toString(),
@@ -133,14 +120,13 @@ function renderArticle() {
             try {
                 allArticles.sort(([, a], [, b]) => b.diff(a).toMillis());
                 const contents = renderLayout({
-                    asset,
                     meta: {
                         description: SITE_DESCRIPTION,
                         "og:title": SITE_TITLE,
                         "og:type": "website",
                         "og:url": `https://adaedra.eu`,
                     },
-                    Content: () => renderIndex({ articles: allArticles, asset }),
+                    Content: () => renderIndex({ articles: allArticles }),
                 });
 
                 this.push(

src/article.tsx

@@ -1,14 +1,14 @@
 import { Document } from "asciidoctor";
 import { DateTime } from "luxon";
+import { asset } from "../lib/assets.js";
 
 type Props = {
     article: Document;
     date: DateTime;
     body: string;
-    asset(path: string): string;
 };
 
-export default ({ asset, article, date, body }: Props) => (
+export default ({ article, date, body }: Props) => (
     <>
         <nav>
             <a href="/" title="Back to home page">

src/index.tsx

@@ -1,11 +1,8 @@
 import { Document } from "asciidoctor";
 import { DateTime } from "luxon";
+import { asset } from "../lib/assets.js";
 
-type HeaderProps = {
+const Header = () => (
-    asset(path: string): string;
-};
-
-const Header = ({ asset }: HeaderProps) => (
     <header class="index-header">
         <div style={{ flex: 1 }}>
             <h1>Adædra</h1>
@@ -19,11 +16,11 @@ const Header = ({ asset }: HeaderProps) => (
     </header>
 );
 
-type ArticleProps = {
+type Props = {
     articles: [string, DateTime, Document][];
 };
 
-const Articles = ({ articles }: ArticleProps) => (
+const Articles = ({ articles }: Props) => (
     <>
         <h2>Latest articles</h2>
         <ul class="index-list">
@@ -42,8 +39,6 @@ const Articles = ({ articles }: ArticleProps) => (
     </>
 );
 
-type Props = HeaderProps & ArticleProps;
-
 const SOCIALS: [string, string, string][] = [
     ["Gitea", "https://gitea.adaedra.eu", "git"],
     ["Mastodon", "https://nerdculture.de/@adaedra", "mastodon"],
@@ -74,10 +69,10 @@ const Socials = () => (
 
 const Footer = () => <footer class="index-footer"></footer>;
 
-export default ({ asset, articles }: Props) => (
+export default (props: Props) => (
     <>
-        <Header asset={asset} />
+        <Header />
-        <Articles articles={articles} />
+        <Articles {...props} />
         <Socials />
         <Footer />
     </>

src/layout.tsx

@@ -1,10 +1,10 @@
 import { SITE_DEFAULT_META, SITE_TITLE } from "./constants.js";
 import { JSX } from "preact/jsx-runtime";
+import { asset } from "../lib/assets.js";
 
 type Props = {
     title?: string;
     meta?: { [name: string]: string };
-    asset(path: string): string;
 } & ({ content: string } | { Content(): JSX.Element });
 
 export default (props: Props) => {
@@ -22,7 +22,7 @@ export default (props: Props) => {
                     }}
                 />
                 {metaTags}
-                <link rel="stylesheet" type="text/css" href={props.asset("index.css")} />
+                <link rel="stylesheet" type="text/css" href={asset("index.css")} />
             </head>
             <body>
                 {"Content" in props ? (