compress static files in parallel

Author: thestinger

process-static

@@ -33,6 +33,5 @@ find static_tmp -name '*.html' -exec html-minifier --collapse-whitespace \
     --remove-style-link-type-attributes --sort-attributes --sort-class-name {} -o {} \;
 
 find static_tmp -name '*.xml' -exec xmllint --noblanks {} --output {} \;
-find static_tmp -regex '.+\.\(css\|html\|ico\|js\|json\|svg\|txt\|webmanifest\|xml\)' \
-    -exec zopfli {} \; -exec touch -r {} {}.gz \; \
-    -exec brotli -k {} \;
+find static_tmp -regex '.+\.\(css\|html\|ico\|js\|json\|svg\|txt\|webmanifest\|xml\)' |
+    parallel "brotli -k {}; zopfli {} && touch -r {} {}.gz"