In Gaia currently we have preprocessor.js[1] that support some syntax[2] to exclude/include HTML/JS/CSS in build time.
With this tool, developer can exclude files, code sections from origin HTML/JS/CSS files to shape the source to fit more kinds of devices. html code.... <!--IFDEF_FIREFOX_SYNC html code section ENDIF_SAMPLE--> The consideration during review is we can't put html related comments inside of <!-- -->, which make bad patten match and also make the editor cry. As my experience about other code mangler/optimizer, some of them support Ruby like start/end syntax, such as: <!-- @if NODE_ENV='production' --><script src="some/production/lib/like/analytics.js"></script><!-- @endif --> Which wrap target code section with start comment and end comment, therefore the origin source is still viewable in plain HTML. May we have something similar so we won't left orphan comments in HTML file? Another thought is since we can use npm modules now (Not 100% sure), why we don't reuse existing preprocessor[3] and send PR to them to leverage efforts from outside talents? 1. https://github.com/mozilla-b2g/gaia/blob/master/build/preprocessor.js 2. https://github.com/mozilla-b2g/gaia/blob/master/apps/settings/elements/root.html#L140 3. https://github.com/jsoverson/preprocess regards -- Fred
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