bug #30277 [Console] Prevent ArgvInput::getFirstArgument() from returning an option value (chalasr)

This PR was merged into the 3.4 branch.

Discussion
----------

[Console] Prevent ArgvInput::getFirstArgument() from returning an option value

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #23343
| License       | MIT
| Doc PR        | n/a

Fixes the case where the passed input string contains no command name but one or more global (i.e. application-defined) options accepting values.

Commits
-------

46461e91f9 [Console] Prevent ArgvInput::getFirstArgument() from returning an option value

src/Symfony/Component/Console/Application.php

@@ -202,6 +202,13 @@ class Application
             return 0;
         }
 
+        try {
+            // Makes ArgvInput::getFirstArgument() able to distinguish an option from an argument.
+            $input->bind($this->getDefinition());
+        } catch (ExceptionInterface $e) {
+            // Errors must be ignored, full binding/validation happens later when the command is known.
+        }
+
         $name = $this->getCommandName($input);
         if (true === $input->hasParameterOption(['--help', '-h'], true)) {
             if (!$name) {

src/Symfony/Component/Console/Input/ArgvInput.php

@@ -262,8 +262,27 @@ class ArgvInput extends Input
      */
     public function getFirstArgument()
     {
-        foreach ($this->tokens as $token) {
+        $isOption = false;
+        foreach ($this->tokens as $i => $token) {
             if ($token && '-' === $token[0]) {
+                if (false !== strpos($token, '=') || !isset($this->tokens[$i + 1])) {
+                    continue;
+                }
+
+                // If it's a long option, consider that everything after "--" is the option name.
+                // Otherwise, use the last char (if it's a short option set, only the last one can take a value with space separator)
+                $name = '-' === $token[1] ? substr($token, 2) : substr($token, -1);
+                if (!isset($this->options[$name]) && !$this->definition->hasShortcut($name)) {
+                    // noop
+                } elseif ((isset($this->options[$name]) || isset($this->options[$name = $this->definition->shortcutToName($name)])) && $this->tokens[$i + 1] === $this->options[$name]) {
+                    $isOption = true;
+                }
+
+                continue;
+            }
+
+            if ($isOption) {
+                $isOption = false;
                 continue;
             }
 

src/Symfony/Component/Console/Input/InputDefinition.php

@@ -338,8 +338,10 @@ class InputDefinition
      * @return string The InputOption name
      *
      * @throws InvalidArgumentException When option given does not exist
+     *
+     * @internal
      */
-    private function shortcutToName($shortcut)
+    public function shortcutToName($shortcut)
     {
         if (!isset($this->shortcuts[$shortcut])) {
             throw new InvalidArgumentException(sprintf('The "-%s" option does not exist.', $shortcut));

src/Symfony/Component/Console/Tests/ApplicationTest.php

@@ -884,6 +884,19 @@ class ApplicationTest extends TestCase
         $this->assertSame('called'.PHP_EOL, $tester->getDisplay(), '->run() does not call interact() if -n is passed');
     }
 
+    public function testRunWithGlobalOptionAndNoCommand()
+    {
+        $application = new Application();
+        $application->setAutoExit(false);
+        $application->setCatchExceptions(false);
+        $application->getDefinition()->addOption(new InputOption('foo', 'f', InputOption::VALUE_OPTIONAL));
+
+        $output = new StreamOutput(fopen('php://memory', 'w', false));
+        $input = new ArgvInput(['cli.php', '--foo', 'bar']);
+
+        $this->assertSame(0, $application->run($input, $output));
+    }
+
     /**
      * Issue #9285.
      *

src/Symfony/Component/Console/Tests/Input/ArgvInputTest.php

@@ -312,6 +312,14 @@ class ArgvInputTest extends TestCase
 
         $input = new ArgvInput(['cli.php', '-fbbar', 'foo']);
         $this->assertEquals('foo', $input->getFirstArgument(), '->getFirstArgument() returns the first argument from the raw input');
+
+        $input = new ArgvInput(['cli.php', '--foo', 'fooval', 'bar']);
+        $input->bind(new InputDefinition([new InputOption('foo', 'f', InputOption::VALUE_OPTIONAL), new InputArgument('arg')]));
+        $this->assertSame('bar', $input->getFirstArgument());
+
+        $input = new ArgvInput(['cli.php', '-bf', 'fooval', 'argval']);
+        $input->bind(new InputDefinition([new InputOption('bar', 'b', InputOption::VALUE_NONE), new InputOption('foo', 'f', InputOption::VALUE_OPTIONAL), new InputArgument('arg')]));
+        $this->assertSame('argval', $input->getFirstArgument());
     }
 
     public function testHasParameterOption()