66 lines
1.5 KiB
JavaScript
66 lines
1.5 KiB
JavaScript
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const fs = require('fs');
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const path = require('path');
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const { sync } = require('execa');
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const utils = require('./index');
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/**
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*
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* Returns the name of package manager to use,
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* preference order - npm > yarn > pnpm
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*
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* @returns {String} - The package manager name
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*/
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function getPackageManager() {
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const hasLocalNpm = fs.existsSync(path.resolve(process.cwd(), 'package-lock.json'));
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if (hasLocalNpm) {
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return 'npm';
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}
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const hasLocalYarn = fs.existsSync(path.resolve(process.cwd(), 'yarn.lock'));
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if (hasLocalYarn) {
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return 'yarn';
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}
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const hasLocalPnpm = fs.existsSync(path.resolve(process.cwd(), 'pnpm-lock.yaml'));
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if (hasLocalPnpm) {
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return 'pnpm';
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}
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try {
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// the sync function below will fail if npm is not installed,
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// an error will be thrown
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if (sync('npm', ['--version'])) {
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return 'npm';
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}
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} catch (e) {
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// Nothing
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}
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try {
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// the sync function below will fail if yarn is not installed,
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// an error will be thrown
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if (sync('yarn', ['--version'])) {
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return 'yarn';
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}
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} catch (e) {
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// Nothing
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}
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try {
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// the sync function below will fail if pnpm is not installed,
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// an error will be thrown
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if (sync('pnpm', ['--version'])) {
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return 'pnpm';
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}
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} catch (e) {
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utils.logger.error('No package manager found.');
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process.exit(2);
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}
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}
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module.exports = getPackageManager;
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