grunt-preprocessPreprocess HTML and JavaScript directives based off environment configurationgruntplugindirectivevarENVenvironmentifdefechoincludeexcludeprocesspreprocesspragma
gulp-preprocessGulp plugin to preprocess HTML, JavaScript, and other files based on custom context or environment configurationgulpplugingulp-pluginpreprocessorhtmljavascriptcoffeescriptdebugenvironmentENVconditionalincludeexcludeifdefifndefecho