| 1 | const { existsSync } = require('fs-extra')
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| 2 | const { join, resolve } = require('path')
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| 3 |
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| 4 | function find() {
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| 5 | let root = process.cwd()
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| 6 | const IS_DIR_END = /^(\w:\\|\/)$/
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| 7 |
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| 8 | while (IS_DIR_END.test(root) === false) {
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| 9 | let file = join(root, 'package.json')
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| 10 | if (existsSync(file)) {
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| 11 | break
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| 12 | } else {
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| 13 | root = resolve(root, '..')
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| 14 | }
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| 15 | }
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| 16 |
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| 17 | return IS_DIR_END.test(root) ? null : root
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| 18 | }
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| 19 |
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| 20 | module.exports = find()
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