Brotli compress dist-extensions

Saves about 7MB.

scripts/prepare-extensions.js

@@ -1,10 +1,27 @@
 const pathUtil = require('path');
+const fs = require('fs');
+const zlib = require('zlib');
 const Builder = require('@turbowarp/extensions/builder');
 
-const outputDirectory = pathUtil.join(__dirname, '../dist-extensions/');
 const mode = 'desktop';
 const builder = new Builder(mode);
 const build = builder.build();
-build.export(outputDirectory);
+console.log(`Built extensions (mode: ${mode})`);
+
+const outputDirectory = pathUtil.join(__dirname, '../dist-extensions/');
+fs.rmSync(outputDirectory, {
+  recursive: true,
+  force: true,
+});
+for (const [relativePath, file] of Object.entries(build.files)) {
+  console.log(`Compressing ${relativePath}`);
+  const directoryName = pathUtil.dirname(relativePath);
+  fs.mkdirSync(pathUtil.join(outputDirectory, directoryName), {
+    recursive: true,
+  });
+  const contents = file.read();
+  const compressed = zlib.brotliCompressSync(contents);
+  fs.writeFileSync(pathUtil.join(outputDirectory, `${relativePath}.br`), compressed);
+}
 
-console.log(`Built ${mode} copy of extensions.turbowarp.org to ${outputDirectory}`);
+console.log(`Exported to ${outputDirectory}`);

src-main/protocols.js

@@ -55,6 +55,7 @@ const FILE_SCHEMES = {
   'tw-extensions': {
     root: path.resolve(__dirname, '../dist-extensions'),
     supportFetch: true,
+    brotli: true,
     embeddable: true,
     stream: true,
     directoryIndex: 'index.html',