12 lines
444 B
TypeScript
12 lines
444 B
TypeScript
import process from 'process';
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const packageJson = process.env.npm_package_json;
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const userAgent = process.env.npm_config_user_agent;
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const isNpm6 = Boolean(userAgent && userAgent.startsWith('npm'));
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const isNpm7 = Boolean(packageJson && packageJson.endsWith('package.json'));
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const isNpm = isNpm6 || isNpm7;
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const isYarn = Boolean(userAgent && userAgent.startsWith('yarn'));
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const isNpmOrYarn = isNpm || isYarn;
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export default isNpmOrYarn;
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