god damn

build/sass.js

@@ -0,0 +1,21 @@
+const sass        = require('gulp-sass');
+const prefix      = require('gulp-autoprefixer');
+const cleanCSS    = require('gulp-clean-css');
+
+const scssPath = '_scss/*.scss';
+const destPath = '_site/css';
+
+module.exports = gulp => {
+
+  gulp.task('sass', () => {
+    return gulp.src( scssPath )
+    .pipe(sass({
+      includePaths: ['scss'],
+      outputStyle: 'expanded'
+    }))
+    .pipe(prefix(['last 15 versions', '> 1%', 'ie 8', 'ie 7'], {cascade: true}))
+    .pipe(cleanCSS({compatibility: 'ie8'}))
+    .pipe(gulp.dest( destPath ))
+    .pipe(gulp.dest('css'));
+  });
+}