Simplify compression

Compress Docusaurus-generated files in a separate script instead of a post-build
hook to avoid post-build hook ordering and concurrency issues.

1 files changed, 11 insertions, 38 deletions

diff --git a/src/plugins/compressionPlugin.ts b/src/plugins/compressionPlugin.ts
index 8b347cf..7b9feeb 100644
--- a/src/plugins/compressionPlugin.ts
+++ b/src/plugins/compressionPlugin.ts
@@ -4,35 +4,20 @@
  * SPDX-License-Identifier: MIT
  */
 
-import { readFile, writeFile } from 'node:fs/promises';
-import path from 'node:path';
-import { promisify } from 'node:util';
-import zlib, { type BrotliOptions, type ZlibOptions } from 'node:zlib';
+import type { BrotliOptions } from 'node:zlib';
 
-import pluginSitemap, { type PluginOptions } from '@docusaurus/plugin-sitemap';
-import type { LoadContext, Plugin } from '@docusaurus/types';
-import { Globby } from '@docusaurus/utils';
+import type { Plugin } from '@docusaurus/types';
 import CompressionPlugin from 'compression-webpack-plugin';
 
-const gzipOptions = {
-  level: 9,
-} satisfies ZlibOptions;
-const brotliOptions = {
-  params: {
-    [zlib.constants.BROTLI_PARAM_QUALITY]: 11,
-  },
-};
-const test = /\.(js|css|svg|txt)$/;
-const paths = ['**/*.html', 'robots.txt', 'sitemap.xml'];
+import {
+  brotliOptions,
+  gzipOptions,
+  minRatio,
+} from '../../scripts/compressionOptions.mjs';
 
-const gzip = promisify(zlib.gzip);
-const brotliCompress = promisify(zlib.brotliCompress);
+const test = /\.(js|css|svg|txt)$/;
 
-export default function compressionPlugin(
-  context: LoadContext,
-  options: PluginOptions,
-): Plugin<void> {
-  const sitemap = pluginSitemap(context, options);
+export default function compressionPlugin(): Plugin<void> {
   return {
     name: 'marussy-compression-plugin',
     configureWebpack: (_config, isServer) =>
@@ -44,28 +29,16 @@ export default function compressionPlugin(
                 test,
                 filename: '[path][base].gz',
                 compressionOptions: gzipOptions,
+                minRatio,
               }),
               new CompressionPlugin<BrotliOptions>({
                 test,
                 filename: '[path][base].br',
                 algorithm: 'brotliCompress',
                 compressionOptions: brotliOptions,
+                minRatio,
               }),
             ],
           },
-    async postBuild(props) {
-      await sitemap?.postBuild(props);
-      const files = await Globby(paths.map((s) => path.join(props.outDir, s)));
-      for (const file of files) {
-        console.log(file);
-        const contents = await readFile(file);
-        const gzipContents = await gzip(contents, gzipOptions);
-        await writeFile(`${file}.gz`, gzipContents);
-        const brotliContents = await brotliCompress(contents, brotliOptions);
-        await writeFile(`${file}.br`, brotliContents);
-      }
-    },
   };
 }
-
-export { validateOptions } from '@docusaurus/plugin-sitemap';