app.js
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/**
* Require Browsersync
*/
var browserSync = require("browser-sync");
/**
* Run the middleware on files that contain .less
*/
function lessMiddleware (req, res, next) {
var parsed = require("url").parse(req.url);
if (parsed.pathname.match(/\.less$/)) {
return less(parsed.pathname).then(function (o) {
res.setHeader('Content-Type', 'text/css');
res.end(o.css);
});
}
next();
}
/**
* Compile less
*/
function less(src) {
var f = require('fs').readFileSync('app' + src).toString();
return require('less').render(f);
}
/**
* Run Browsersync with less middleware
*/
browserSync({
files: "app/css/*.less",
server: "app",
injectFileTypes: ["less"],
/**
* Catch all requests, if any are for .less files, recompile on the fly and
* send back a CSS response
*/
middleware: lessMiddleware
});