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Work around this issue: rollup-plugin-terser#88
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| const fs = require('fs') | ||
| const path = require('path') | ||
| const { minify } = require('terser') | ||
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| const encoding = "utf-8" | ||
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| function readFile(file) { | ||
| return new Promise((resolve, reject) => { | ||
| fs.readFile(file, encoding, (err, content) => { | ||
| if (err) { | ||
| reject(err) | ||
| } else { | ||
| resolve(content) | ||
| } | ||
| }) | ||
| }) | ||
| } | ||
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| function writeFile(file, content) { | ||
| return new Promise((resolve, reject) => { | ||
| fs.writeFile(file, content, encoding, err => { | ||
| if (err) { | ||
| reject(err) | ||
| } else { | ||
| resolve() | ||
| } | ||
| }) | ||
| }) | ||
| } | ||
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| function processFile(jsFile) { | ||
| const mapFile = `${jsFile}.map` | ||
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| Promise.all([readFile(jsFile), readFile(mapFile)]) | ||
| .then(contents => { | ||
| const basename = path.basename(jsFile) | ||
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| const options = { | ||
| compress: true, | ||
| mangle: true, | ||
| module: Boolean(basename.match(/\.esm?\.js/)), | ||
| sourceMap: { | ||
| content: contents[1], | ||
| filename: basename, | ||
| url: path.basename(mapFile), | ||
| }, | ||
| } | ||
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| options.toplevel = options.module && (options.compress || options.mangle) | ||
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| return minify(contents[0], options) | ||
| }) | ||
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| .then(result => { | ||
| return Promise.all([writeFile(jsFile, result.code), writeFile(mapFile, result.map)]) | ||
| console.log(result) | ||
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| }) | ||
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| .then(() => { | ||
| console.log(`Minified ${jsFile}, updated ${mapFile}`) | ||
| }) | ||
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| .catch(err => { | ||
| throw `Error: ${err}` | ||
| }) | ||
| } | ||
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| process.argv.slice(2).forEach(processFile) |
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