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setEnv example

throw new \LogicException('Resolving commands requires the Symfony Process component. Try running "composer require symfony/process".');
            }

            $process = Process::fromShellCommandline('echo '.$matches[0]);

            $env = [];
            foreach ($this->values as $name => $value) {
                if (isset($loadedVars[$name]) || (!isset($_ENV[$name]) && !(isset($_SERVER[$name]) && !str_starts_with($name, 'HTTP_')))) {
                    $env[$name] = $value;
                }
            }
            $process->setEnv($env);

            try {
                $process->mustRun();
            } catch (ProcessException) {
                throw $this->createFormatException(sprintf('Issue expanding a command (%s)', $process->getErrorOutput()));
            }

            return preg_replace('/[\r\n]+$/', '', $process->getOutput());
        }, $value);
    }

#[Package('core')] class StreamedCommandResponseGenerator
{
    /** * @param array<string> $params * @param callable(Process): void $finish */
    public function run(array $params, callable $finish): StreamedResponse
    {
        $process = new Process($params);
        $process->setEnv(['COMPOSER_HOME' => sys_get_temp_dir() . '/composer']);
        $process->setTimeout(300);

        $process->start();

        return new StreamedResponse(function D) use ($process, $finish): void {
            foreach ($process->getIterator() as $item) {
                \assert(\is_string($item));
                echo $item;
                flush();
            }

$this->commandline = $command;
        $this->cwd = $cwd;

        // on Windows, if the cwd changed via chdir(), proc_open defaults to the dir where PHP was started         // on Gnu/Linux, PHP builds with --enable-maintainer-zts are also affected         // @see : https://bugs.php.net/51800         // @see : https://bugs.php.net/50524         if (null === $this->cwd && (\defined('ZEND_THREAD_SAFE') || '\\' === \DIRECTORY_SEPARATOR)) {
            $this->cwd = getcwd();
        }
        if (null !== $env) {
            $this->setEnv($env);
        }

        $this->setInput($input);
        $this->setTimeout($timeout);
        $this->useFileHandles = '\\' === \DIRECTORY_SEPARATOR;
        $this->pty = false;
    }

    /** * Creates a Process instance as a command-line to be run in a shell wrapper. * * Command-lines are parsed by the shell of your OS (/bin/sh on Unix-like, cmd.exe on Windows.) * This allows using e.g. pipes or conditional execution. In this mode, signals are sent to the * shell wrapper and not to your commands. * * In order to inject dynamic values into command-lines, we strongly recommend using placeholders. * This will save escaping values, which is not portable nor secure anyway: * * $process = Process::fromShellCommandline('my_command "${:MY_VAR}"'); * $process->run(null, ['MY_VAR' => $theValue]); * * @param string $command The command line to pass to the shell of the OS * @param string|null $cwd The working directory or null to use the working dir of the current PHP process * @param array|null $env The environment variables or null to use the same environment as the current PHP process * @param mixed $input The input as stream resource, scalar or \Traversable, or null for no input * @param int|float|null $timeout The timeout in seconds or null to disable * * @throws LogicException When proc_open is not installed */

$p2->run();

        $this->assertSame('123', $p1->getErrorOutput());
        $this->assertSame('', $p1->getOutput());
        $this->assertSame('', $p2->getErrorOutput());
        $this->assertSame('456', $p2->getOutput());
    }

    public function testSetBadEnv()
    {
        $process = $this->getProcess('echo hello');
        $process->setEnv(['bad%%' => '123']);

        $process->run();

        $this->assertSame('hello'.\PHP_EOL, $process->getOutput());
        $this->assertSame('', $process->getErrorOutput());
    }

    public function testEnvBackupDoesNotDeleteExistingVars()
    {
        putenv('existing_var=foo');
        $_ENV['existing_var'] = 'foo';