不使用 Tailwind CSS 减少 css 文件

Question

我尝试将 Tailwind 用于我的项目。但我不能减少我的 css 文件。

这是我项目的结构：

gulpfile.js：

const gulp = require('gulp');
const babel = require("gulp-babel");
const watch = require('gulp-watch');
const browserSync = require('browser-sync').create();
const environments = require('gulp-environments');
const uglifycss = require('gulp-uglifycss');
const terser = require('gulp-terser');
const postcss = require('gulp-postcss');
const purgecss = require('gulp-purgecss');
const production = environments.production;
gulp.task('watch', () => {
    browserSync.init({
        proxy: 'localhost:8080',
    });
    gulp.watch(['src/main/resources/**/*.html'], gulp.series('copy-html-and-reload'));
    gulp.watch(['src/main/resources/**/*.css'], gulp.series('copy-css-and-reload'));
    gulp.watch(['src/main/resources/**/*.js'], gulp.series('copy-js-and-reload'));
});
gulp.task('copy-html', () =>
    gulp.src(['src/main/resources/**/*.html'])
        .pipe(gulp.dest('target/classes/'))
);
gulp.task('copy-css', () =>
    gulp.src(['src/main/resources/**/*.css'])
        .pipe(postcss())
        .pipe(production(uglifycss()))
        .pipe(gulp.dest('target/classes/'))
);
gulp.task('copy-js', () =>
    gulp.src(['src/main/resources/**/*.js'])
        .pipe(babel())
        .pipe(production(terser()))
        .pipe(gulp.dest('target/classes/'))
);
gulp.task('copy-html-and-reload', gulp.series('copy-html', reload));
gulp.task('copy-css-and-reload', gulp.series('copy-css', reload));
gulp.task('copy-js-and-reload', gulp.series('copy-js', reload));
gulp.task('build', gulp.series('copy-html', 'copy-css', 'copy-js'));
gulp.task('default', gulp.series('watch'));
function reload(done) {
    browserSync.reload();
    done();
}

tailwind.config.js：

module.exports = {
  purge:
      {
        content: ['./src/main/resources/templates/**/*.html']
      },
  darkMode: false, // or 'media' or 'class'
  theme: {
    extend: {},
  },
  variants: {
    extend: {},
  },
  plugins: [],
}

package.json:

{
  "name": "tournament",
  "scripts": {
    "watch": "gulp watch",
    "build": "gulp build",
    "build-prod": "NODE_ENV='production' gulp build --env production"
  },
  "dependencies": {
    "autoprefixer": "^10.4.0",
    "postcss": "^8.3.11",
    "tailwindcss": "^2.2.19"
  },
  "devDependencies": {
    "@babel/core": "^7.16.0",
    "@babel/preset-env": "^7.16.4",
    "browser-sync": "^2.27.7",
    "gulp": "^4.0.2",
    "gulp-babel": "^8.0.0",
    "gulp-environments": "^1.0.1",
    "gulp-postcss": "^9.0.1",
    "gulp-purgecss": "^4.0.3",
    "gulp-terser": "^2.1.0",
    "gulp-uglifycss": "^1.1.0",
    "gulp-watch": "^5.0.1"
  }

}

postcss.config.js：

module.exports = {
    plugins: {
        tailwindcss: {},
        autoprefixer: {}
    }
}

当我运行npm run build-prod 时，我放置在 target/classes/static/css/application.css 中的 css 文件不会减少。我究竟做错了什么？我尝试将 gulpfile.css 中文件的路径从 src/main/resources/**/.css 更改为 src/main/resources/static/css/.css，但没有帮助。我还在tailwind.config.js中更改了路径，但都是徒劳的。

Answer 1

请检查 PurgeCSS 的配置 - 它负责删除未使用的 CSS 代码 - https://www.npmjs.com/package/gulp-purgecss#user-content-usage