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-rw-r--r--node_modules/has-yarn/index.js5
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diff --git a/node_modules/has-yarn/index.js b/node_modules/has-yarn/index.js
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+'use strict';
+const path = require('path');
+const fs = require('fs');
+
+module.exports = cwd => fs.existsSync(path.resolve(cwd || process.cwd(), 'yarn.lock'));