julian.kiedaischandClaude Opus 5.5
087721cba3
F hands out the editor's page and bundle (editor/ beside main.mjs, or FILIUS_EDITOR_DIR): GET and HEAD only, one wall against leaving the folder, F's own routes first, assets/ cached a year, the rest asked for again; the build lays .br and .gz beside the files and F sends the better one the browser takes (bundle 695 KB to 212 KB). deploy/Dockerfile: two stages, Node 24, no node_modules, not root. deploy/docker-compose.yml with an env file per environment: the file sets the stack's name, volume, image tag and port (test 8081, production 8080). Measured with both stacks side by side behind nginx and Chromium. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
38 lines
1.6 KiB
TypeScript
38 lines
1.6 KiB
TypeScript
// Lays a .br and a .gz beside every compressible file of the editor's
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// bundle, once, when the image is built (precompressMain.ts); F sends them
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// instead of the file (editorFiles.ts). At the strongest level (brotli's is
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// its default), because it costs only the build: the editor's bundle shrinks to about a third, and a
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// tablet on the school's network feels that at every opening. A packed file
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// that is not smaller is not laid.
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import { readdir, readFile, writeFile } from 'node:fs/promises';
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import { extname, join } from 'node:path';
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import { promisify } from 'node:util';
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import { brotliCompress, constants, gzip } from 'node:zlib';
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export const COMPRESSIBLE = new Set(['.html', '.js', '.mjs', '.css', '.json', '.svg', '.txt']);
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const packers = [
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{ suffix: '.br', pack: (bytes: Buffer) => promisify(brotliCompress)(bytes) },
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{ suffix: '.gz', pack: (bytes: Buffer) => promisify(gzip)(bytes, { level: constants.Z_BEST_COMPRESSION }) },
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];
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/** Packs the compressible files under `folder`; returns how many packed files it laid. */
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export async function precompress(folder: string): Promise<number> {
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let laid = 0;
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for (const entry of await readdir(folder, { withFileTypes: true })) {
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const path = join(folder, entry.name);
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if (entry.isDirectory()) laid += await precompress(path);
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else if (entry.isFile() && COMPRESSIBLE.has(extname(entry.name))) {
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const bytes = await readFile(path);
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for (const { suffix, pack } of packers) {
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const packed = await pack(bytes);
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if (packed.length >= bytes.length) continue;
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await writeFile(path + suffix, packed);
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laid += 1;
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}
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}
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}
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return laid;
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}
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