var gulp = require('gulp');

var concat = require('gulp-concat');

var rename = require("gulp-rename");

var uglify = require('gulp-uglify');

gulp.task('build', function() {

return gulp.src([

'src/wrapper/prefix.js',

'src/parser.js',

'src/texture.js',

'src/gpu.js',

'src/backend/functionNode_webgl.js',

'src/backend/functionNode.js',

'src/backend/functionBuilder.js',

'src/backend/fallback.js',

'src/backend/glsl.js',

'src/wrapper/suffix.js'

])

.pipe(concat('gpu.js'))

.pipe(gulp.dest('bin'));

});

gulp.task('minify', ['build'], function() {

return gulp.src(['bin/gpu.js'])

.pipe(rename('gpu.min.js'))

.pipe(uglify({

mangle: false,

preserveComments: "license"

}))

.pipe(gulp.dest('bin'));

});

gulp.task('default', ['minify']);