feat(#60): read & serve archived assets

package.json

@@ -20,13 +20,16 @@
     "markdown-it-inject-linenumbers": "^0.3.0",
     "markdown-it-task-lists": "^2.1.1",
     "markdown-it-texmath": "^1.0.0",
+    "node-stream-zip": "^1.15.0",
+    "tmp": "^0.2.3",
     "uuid": "^9.0.0",
     "ws": "^8.13.0"
   },
   "devDependencies": {
     "@types/express": "^4.17.17",
     "@types/markdown-it": "^12.2.3",
     "@types/node": "^20.4.2",
+    "@types/tmp": "^0.2.6",
     "@types/uuid": "^9.0.2",
     "@types/ws": "^8.5.5",
     "@typescript-eslint/eslint-plugin": "^6.2.0",

src/routes/static.ts

@@ -1,11 +1,16 @@
+import StreamZip from 'node-stream-zip';
+import tmp from 'tmp';
 import { Router } from 'express';
 import { readFile } from 'fs/promises';
 import { dirname as pdirname, join as pjoin } from 'path';
+import { writeFileSync } from 'fs';
 
 /* eslint-disable @typescript-eslint/no-var-requires */
 const { isSea, getAsset } = require('node:sea');
 /* eslint-enable @typescript-eslint/no-var-requires */
 
+tmp.setGracefulCleanup();
+
 export const router = Router();
 
 class StaticProvider {
@@ -16,22 +21,19 @@ class StaticProvider {
     private constructor() {
         if (isSea()) {
             const assets = getAsset('static.zip');
-            this._content = (path) => this._contentProd(assets, path);
+            const buffer = Buffer.from(assets);
+
+            const archiveFile = tmp.fileSync({ postfix: '.zip' }).name;
+            writeFileSync(archiveFile, buffer);
+            const zip = new StreamZip.async({ file: archiveFile });
+
+            this._content = (path) => zip.entryData(`static${path}`);
         } else {
             const staticDir = pjoin(pdirname(pdirname(__dirname)), 'static');
-            this._content = (path) => this._contentDev(staticDir, path);
+            this._content = (path) => readFile(pjoin(staticDir, path));
         }
     }
 
-    private async _contentDev(staticDir: string, path: string): Promise<Buffer> {
-        return readFile(pjoin(staticDir, path));
-    }
-
-    private async _contentProd(assets: Blob, path: string): Promise<Buffer> {
-        console.log(assets);
-        throw new Error('Not implemented' + path);
-    }
-
     static async content(path: string): Promise<Buffer> {
         return StaticProvider.instance._content(path);
     }

yarn.lock

@@ -312,6 +312,11 @@
     "@types/mime" "*"
     "@types/node" "*"
 
+"@types/tmp@^0.2.6":
+  version "0.2.6"
+  resolved "https://registry.yarnpkg.com/@types/tmp/-/tmp-0.2.6.tgz#d785ee90c52d7cc020e249c948c36f7b32d1e217"
+  integrity sha512-chhaNf2oKHlRkDGt+tiKE2Z5aJ6qalm7Z9rlLdBwmOiAAf09YQvvoLXjWK4HWPF1xU/fqvMgfNfpVoBscA/tKA==
+
 "@types/uuid@^9.0.2":
   version "9.0.2"
   resolved "https://registry.yarnpkg.com/@types/uuid/-/uuid-9.0.2.tgz#ede1d1b1e451548d44919dc226253e32a6952c4b"
@@ -1894,6 +1899,11 @@ node-releases@^2.0.14:
   resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-2.0.14.tgz#2ffb053bceb8b2be8495ece1ab6ce600c4461b0b"
   integrity sha512-y10wOWt8yZpqXmOgRo77WaHEmhYQYGNA6y421PKsKYWEK8aW+cqAphborZDhqfyKrbZEN92CN1X2KbafY2s7Yw==
 
+node-stream-zip@^1.15.0:
+  version "1.15.0"
+  resolved "https://registry.yarnpkg.com/node-stream-zip/-/node-stream-zip-1.15.0.tgz#158adb88ed8004c6c49a396b50a6a5de3bca33ea"
+  integrity sha512-LN4fydt9TqhZhThkZIVQnF9cwjU3qmUH9h78Mx/K7d3VvfRqqwthLwJEUOEL0QPZ0XQmNN7be5Ggit5+4dq3Bw==
+
 nodemon@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/nodemon/-/nodemon-3.0.1.tgz#affe822a2c5f21354466b2fc8ae83277d27dadc7"
@@ -2467,6 +2477,11 @@ titleize@^3.0.0:
   resolved "https://registry.yarnpkg.com/titleize/-/titleize-3.0.0.tgz#71c12eb7fdd2558aa8a44b0be83b8a76694acd53"
   integrity sha512-KxVu8EYHDPBdUYdKZdKtU2aj2XfEx9AfjXxE/Aj0vT06w2icA09Vus1rh6eSu1y01akYg6BjIK/hxyLJINoMLQ==
 
+tmp@^0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.2.3.tgz#eb783cc22bc1e8bebd0671476d46ea4eb32a79ae"
+  integrity sha512-nZD7m9iCPC5g0pYmcaxogYKggSfLsdxl8of3Q/oIbqCqLLIO9IAF0GWjX1z9NZRHPiXv8Wex4yDCaZsgEw0Y8w==
+
 to-regex-range@^5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/to-regex-range/-/to-regex-range-5.0.1.tgz#1648c44aae7c8d988a326018ed72f5b4dd0392e4"