gistfile1.txt

var gulp = require('gulp'),
    sass = require('gulp-sass'),
    autoprefixer = require('gulp-autoprefixer');

var paths = {
  styles: {
    src: ['src/scss/**/*'],
    dest: 'build/css'
  }
};

var options = {
  sass: {
    errLogToConsole: true,
    sourceComments: 'map'
  },
  autoprefixer: [
    'last 1 version',
    '> 1%', 
    'ie 8', 
    'ie 7'
  ]
};

gulp.task('styles', function () {
  gulp.src(paths.styles.src)
    .pipe(sass(options.sass))
    .pipe(autoprefixer.apply(undefined, options.autoprefixer))
    .pipe(gulp.dest(paths.styles.dest));
});

gulp.task('watch', function () {
  gulp.watch(paths.styles.src, ['styles']);
});

gulp.task('build', [
  'styles', 
]);

gulp.task('default', [
  'build',
  'watch'
]);