gistfile.js

gulp.task( 'google-font-download-list', function() {
	var url = 'https://www.googleapis.com/webfonts/v1/webfonts?key=AIzaSyDS1XfK5O1n2KXV3a1sonEffs966tQt54g';
	return download( url )
	.pipe( rename( {
		basename: 'google-fonts',
		extname: '.json'
	} ) )
	.pipe( gulp.dest( '.' ) );
} );
gulp.task( 'google-font-update-list', ['google-font-download-list'], function() {
	var fonts = require( './google-fonts.json' );
	var i, variants, subsets, php = '\n';

	for ( i = 0; i < fonts.items.length; i++ ) {
		variants = fonts.items[ i ].variants.join( '\', \'' );
		if ( variants ) {
			variants = '\'' + variants + '\'';
		}
		subsets = fonts.items[ i ].subsets.join( '\', \'' );
		if ( subsets ) {
			subsets = '\'' + subsets + '\'';
		}
		php += '\t\t\t\'' + fonts.items[ i ].family + '\' => array(\n\t\t\t\t\'variants\' => array( ' + variants + ' ),\n\t\t\t\t\'subsets\' => array( ' + subsets + ' ),\n\t\t\t),\n';
	}

	return gulp.src( './function-google-fonts.php' )
	.pipe( replace( /(pbs_get_all_google_fonts\(\)\s*\{[\s\S]+return\s*array\()[^;]+/gm, '$1' + php + '\t\t)' ) )
	.pipe( gulp.dest( '.' ) );
} );