Gulp:编译八字胡时避免使用中间文件

const gulp = require('gulp');
const sass = require('gulp-sass');
const concat = require('gulp-concat');
const uglify = require('gulp-uglify');
const rename = require('gulp-rename');

// 编译Sass文件
gulp.task('sass', function() {
  return gulp.src('src/styles/*.scss')
    .pipe(sass())
    .pipe(gulp.dest('dist/css'));
});

// 合并和压缩JavaScript文件
gulp.task('scripts', function() {
  return gulp.src('src/scripts/*.js')
    .pipe(concat('all.js'))
    .pipe(gulp.dest('dist/js'))
    .pipe(uglify())
    .pipe(rename('all.min.js'))
    .pipe(gulp.dest('dist/js'));
});

// 监听文件变化
gulp.task('watch', function() {
  gulp.watch('src/styles/*.scss', gulp.series('sass'));
  gulp.watch('src/scripts/*.js', gulp.series('scripts'));
});

// 默认任务
gulp.task('default', gulp.series('sass', 'scripts', 'watch'));