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import fs from 'fs'
import path from 'path'
import { execSync } from 'child_process'
export type PackageManager = 'npm' | 'pnpm' | 'yarn'
export function getPkgManager(baseDir: string): PackageManager {
try {
for (const { lockFile, packageManager } of [
{ lockFile: 'yarn.lock', packageManager: 'yarn' },
{ lockFile: 'pnpm-lock.yaml', packageManager: 'pnpm' },
{ lockFile: 'package-lock.json', packageManager: 'npm' },
]) {
if (fs.existsSync(path.join(baseDir, lockFile))) {
return packageManager as PackageManager
}
}
const userAgent = process.env.npm_config_user_agent
if (userAgent) {
if (userAgent.startsWith('yarn')) {
return 'yarn'
} else if (userAgent.startsWith('pnpm')) {
return 'pnpm'
}
}
try {
execSync('yarn --version', { stdio: 'ignore' })
return 'yarn'
} catch {
execSync('pnpm --version', { stdio: 'ignore' })
return 'pnpm'
}
} catch {
return 'npm'
}
}
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