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Noitidart/block-npm-i-if-have-yarn.js

Created July 25, 2019 18:03
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block-npm-i-if-have-yarn.js
in package.json scripts:
scripts: {
...
"preinstall": "node -e \"if (process.env.npm_execpath.indexOf('yarn') === -1) { console.error('\\u001b[31mPlease use yarn for installing\\u001b[0m'); process.exit(1); }\""
...
}
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