node.js - Gulp task for multiple files -

i'm trying create gulp task creates (in case minifies) css file every project css there is. project should combine , minify following files:

global.projecta.css tool1.projecta.css tool2.projecta.css 

it needs kind of loop or something...? if there new project d, should build too. if need add "projectd" array, ok too.

this directory structure css

./global.projecta.css ./global.projectb.css ./global.projectc.css  ./addons/tool1.projecta.css ./addons/tool2.projecta.css ./addons/tool1.projectb.css ./addons/tool2.projectb.css ./addons/tool1.projectc.css ./addons/tool2.projectc.css 

this not working task

// not working.... gulp.task('css', function() {     return gulp.src(['global.*.css', 'addons/tool*.css', '!*.min.css'])       .pipe(concat('build.css'))       .pipe(rename({suffix: '.min'}))       .pipe(minifycss())       .pipe(gulp.dest('build/css')); }); 

you try this, although requires manually entering array of projects.

gulp.task('css', function() {     var projects = ['a','b','c'];     projects.foreach( function(proj) {         gulp.src(['global.' + proj + '.css', 'addons/tool*.' + proj + '.css', '!*.min.css'])         ...     }); });