update

node_modules/bs-recipes/recipes/grunt.sass.autoprefixer/Gruntfile.js

@@ -0,0 +1,62 @@
+module.exports = function (grunt) {
+    grunt.initConfig({
+        dirs: {
+            css:  "app/css",
+            scss: "app/scss"
+        },
+        watch: {
+            options: {
+                spawn: false
+            },
+            sass: {
+                files: '<%= dirs.scss %>/**/*.scss',
+                tasks: ['sass', 'autoprefixer', 'bsReload:css']
+            },
+            html: {
+                files: 'app/*.html',
+                tasks: ['bsReload:all']
+            }
+        },
+        sass: {
+            dev: {
+                files: {
+                    '<%= dirs.css %>/main.css': '<%= dirs.scss %>/main.scss'
+                }
+            }
+        },
+        autoprefixer: {
+            options: {
+                browsers: ['last 5 versions', 'ie 8']
+            },
+            css: {
+                src: '<%= dirs.css %>/main.css',
+                dest: '<%= dirs.css %>/main.css'
+            }
+        },
+        browserSync: {
+            dev: {
+                options: {
+                    server: "./app",
+                    background: true
+                }
+            }
+        },
+        bsReload: {
+            css: {
+                reload: "main.css"
+            },
+            all: {
+                reload: true
+            }
+        }
+    });
+
+    // load npm tasks
+    grunt.loadNpmTasks('grunt-contrib-sass');
+    grunt.loadNpmTasks('grunt-autoprefixer');
+    grunt.loadNpmTasks('grunt-browser-sync');
+    grunt.loadNpmTasks('grunt-contrib-watch');
+
+    // define default task
+    grunt.registerTask('default', ['browserSync', 'watch']);
+};