Gulp 如何从CommonJS模块导入一个ESM的Javascript文件?[错误_要求_ESM]

tcbh2hod  于 2022-12-08  发布在  Gulp
关注(0)|答案(1)|浏览(308)

我的项目完全是用CommonJS模块编写的,* 我不打算更改它 *。问题是我在使用gulp时必须使用ESM库。
出现此情况的文件:

const { dest, src } = require('gulp')
const imagemin = require('gulp-imagemin') // This is a ESM. Compiler gives error [ERR_REQUIRE_ESM]

const images = () => {
    // We have specific configs for jpeg and png files to try
    // to really pull down asset sizes
    return src('./src/images/**/*')
        .pipe(
            imagemin(
                [
                    imagemin.mozjpeg({ quality: 60, progressive: true }),
                    imagemin.optipng({ optimizationLevel: 5, interlaced: null })
                ],
                {
                    silent: true
                }
            )
        )
        .pipe(dest('./dist/images'))
}

module.exports = images

这是节点给出的错误

Error [ERR_REQUIRE_ESM]: require() of ES Module C:\Users\Lucas\Documents\repos\nexus-materiales\node_modules\gulp-imagemin\index.js from C:\Users\Lucas\Documents\repos\nexus-materiales\gulp-tasks\images.js not supported.
Instead change the require of index.js in C:\Users\Lucas\Documents\repos\nexus-materiales\gulp-tasks\images.js to a dynamic import() which is available in all CommonJS modules.
    at Object.<anonymous> (C:\Users\Lucas\Documents\repos\nexus-materiales\gulp-tasks\images.js:2:18)
    at Object.<anonymous> (C:\Users\Lucas\Documents\repos\nexus-materiales\gulpfile.js:4:16)
    at async Promise.all (index 0) {
  code: 'ERR_REQUIRE_ESM'
}

那么,如果这个文件是ESM,我如何使用commonJS来包含它呢?这可能吗?

e4eetjau

e4eetjau1#

要从CommonJS代码导入ES模块,请使用动态导入。
ES模块导入是异步的:您必须确保在创建gulp流之前gulp-imagemin导入已经完成。

const { dest, series, src } = require('gulp');
let imagemin;

const images = series(
    async () => {
        imagemin = await import('gulp-imagemin');
    },
    () => src('./src/images/**/*')
        .pipe(
            imagemin.default(
                [
                    imagemin.mozjpeg({ quality: 60, progressive: true }),
                    imagemin.optipng({ optimizationLevel: 5, interlaced: null })
                ],
                {
                    silent: true
                }
            )
        )
        .pipe(dest('./dist/images'))
);

请注意,我使用imagemin.default来访问gulp-imagemin的默认导出,因为它是动态导入的。

相关问题