resolveCommand.js
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resolveCommand.js
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			'use strict';

			const path = require('path');
			const which = require('which');
			const getPathKey = require('path-key');

			function resolveCommandAttempt(parsed, withoutPathExt) {
			const env = parsed.options.env \|\| process.env;
			const cwd = process.cwd();
			const hasCustomCwd = parsed.options.cwd != null;
			// Worker threads do not have process.chdir()
			const shouldSwitchCwd = hasCustomCwd && process.chdir !== undefined && !process.chdir.disabled;

			// If a custom `cwd` was specified, we need to change the process cwd
			// because `which` will do stat calls but does not support a custom cwd
			if (shouldSwitchCwd) {
			try {
			process.chdir(parsed.options.cwd);
			} catch (err) {
			/* Empty */
			}
			}

			let resolved;

			try {
			resolved = which.sync(parsed.command, {
			path: env[getPathKey({ env })],
			pathExt: withoutPathExt ? path.delimiter : undefined,
			});
			} catch (e) {
			/* Empty */
			} finally {
			if (shouldSwitchCwd) {
			process.chdir(cwd);
			}
			}

			// If we successfully resolved, ensure that an absolute path is returned
			// Note that when a custom `cwd` was used, we need to resolve to an absolute path based on it
			if (resolved) {
			resolved = path.resolve(hasCustomCwd ? parsed.options.cwd : '', resolved);
			}

			return resolved;
			}

			function resolveCommand(parsed) {
			return resolveCommandAttempt(parsed) \|\| resolveCommandAttempt(parsed, true);
			}

			module.exports = resolveCommand;