| 1 | const { minify } = require('uglify-js')
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| 2 | const chalk = require('chalk')
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| 3 |
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| 4 | |
| 5 | |
| 6 | |
| 7 |
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| 8 | module.exports = async (files, minifyOpts, silent) => {
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| 9 | const results = minify(files, minifyOpts)
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| 10 | if (results.error) {
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| 11 | const err = Object.assign(results.error, {
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| 12 | preview: ''
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| 13 | })
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| 14 | if (typeof err.line !== 'undefined') {
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| 15 | err.preview = files[err.filename].split('\n')[err.line - 1]
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| 16 | const spaces = err.preview.match(/^\s*/)
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| 17 | err.cursor = '^'.padStart(err.col - spaces[0].length + 2, ' ')
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| 18 | if (!silent) {
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| 19 | console.log(chalk.red(`⚠️ Syntax error found by uglify in "${err.filename}", on line ${err.line}, col ${err.col}, you wrote:`))
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| 20 | console.log(err.preview.replace(/^\s*/, ' '))
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| 21 | console.log(chalk.bold.red(err.cursor))
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| 22 | }
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| 23 | }
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| 24 | return Promise.reject(err)
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| 25 | }
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| 26 | return results.code
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| 27 | }
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