refactor: Move the PHP version option into a dedicated class

src/Console/Command/AddPrefixCommand.php

@@ -27,9 +27,9 @@
 use Humbug\PhpScoper\Configuration\Throwable\UnknownConfigurationKey;
 use Humbug\PhpScoper\Console\ConfigLoader;
 use Humbug\PhpScoper\Console\ConsoleScoper;
+use Humbug\PhpScoper\Console\InputOption\PhpVersionInputOption;
 use Humbug\PhpScoper\Scoper\Factory\ScoperFactory;
 use InvalidArgumentException;
-use PhpParser\PhpVersion;
 use Symfony\Component\Console\Exception\RuntimeException;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputOption;
@@ -57,7 +57,6 @@ final class AddPrefixCommand implements Command, CommandAware
     private const CONTINUE_ON_FAILURE_OPT = 'continue-on-failure';
     private const CONFIG_FILE_OPT = 'config';
     private const NO_CONFIG_OPT = 'no-config';
-    private const PHP_VERSION_OPT = 'php-version';
 
     private const DEFAULT_OUTPUT_DIR = 'build';
 
@@ -133,12 +132,7 @@ public function getConfiguration(): CommandConfiguration
                     InputOption::VALUE_NONE,
                     'Do not look for a configuration file.',
                 ),
-                new InputOption(
-                    self::PHP_VERSION_OPT,
-                    null,
-                    InputOption::VALUE_REQUIRED,
-                    'PHP version in which the PHP parser and printer will be configured, e.g. "7.2".',
-                ),
+                PhpVersionInputOption::createInputOption(),
             ],
         );
     }
@@ -155,7 +149,7 @@ public function execute(IO $io): int
 
         $paths = $this->getPathArguments($io, $cwd);
         $config = $this->retrieveConfig($io, $paths, $cwd);
-        $phpVersion = self::getPhpVersion($io);
+        $phpVersion = PhpVersionInputOption::getPhpVersion($io);
 
         $outputDir = $this->canonicalizePath(
             $this->getOutputDir($io, $config),
@@ -175,17 +169,6 @@ public function execute(IO $io): int
         return ExitCode::SUCCESS;
     }
 
-    private static function getPhpVersion(IO $io): ?PhpVersion
-    {
-        $version = $io
-            ->getTypedOption(self::PHP_VERSION_OPT)
-            ->asNullableString();
-
-        return null === $version
-            ? $version
-            : PhpVersion::fromString($version);
-    }
-
     private static function getStopOnFailure(IO $io): bool
     {
         $stopOnFailure = $io->getTypedOption(self::STOP_ON_FAILURE_OPT)->asBoolean();

src/Console/Command/InspectCommand.php

@@ -23,6 +23,7 @@
 use Humbug\PhpScoper\Configuration\Configuration;
 use Humbug\PhpScoper\Configuration\ConfigurationFactory;
 use Humbug\PhpScoper\Console\ConfigLoader;
+use Humbug\PhpScoper\Console\InputOption\PhpVersionInputOption;
 use Humbug\PhpScoper\Scoper\Factory\ScoperFactory;
 use Humbug\PhpScoper\Symbol\SymbolsRegistry;
 use InvalidArgumentException;
@@ -50,7 +51,6 @@ final class InspectCommand implements Command, CommandAware
     private const PREFIX_OPT = 'prefix';
     private const CONFIG_FILE_OPT = 'config';
     private const NO_CONFIG_OPT = 'no-config';
-    private const PHP_VERSION_OPT = 'php-version';
 
     public function __construct(
         private readonly Filesystem $fileSystem,
@@ -96,12 +96,7 @@ public function getConfiguration(): CommandConfiguration
                     InputOption::VALUE_NONE,
                     'Do not look for a configuration file.',
                 ),
-                new InputOption(
-                    self::PHP_VERSION_OPT,
-                    null,
-                    InputOption::VALUE_REQUIRED,
-                    'PHP version in which the PHP parser and printer will be configured, e.g. "7.2".',
-                ),
+                PhpVersionInputOption::createInputOption(),
             ],
         );
     }
@@ -116,7 +111,7 @@ public function execute(IO $io): int
         // working directory
         $cwd = getcwd();
 
-        $phpversion = self::getPhpVersion($io);
+        $phpversion = PhpVersionInputOption::getPhpVersion($io);
         $filePath = $this->getFilePath($io, $cwd);
         $config = $this->retrieveConfig($io, [$filePath], $cwd);
 
@@ -266,15 +261,4 @@ private static function exportSymbolsRegistry(SymbolsRegistry $symbolsRegistry,
             true,
         );
     }
-
-    private static function getPhpVersion(IO $io): ?PhpVersion
-    {
-        $version = $io
-            ->getTypedOption(self::PHP_VERSION_OPT)
-            ->asNullableString();
-
-        return null === $version
-            ? $version
-            : PhpVersion::fromString($version);
-    }
 }

src/Console/InputOption/PhpVersionInputOption.php

@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the humbug/php-scoper package.
+ *
+ * Copyright (c) 2017 Théo FIDRY <[email protected]>,
+ *                    Pádraic Brady <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Humbug\PhpScoper\Console\InputOption;
+
+use Fidry\Console\IO;
+use Humbug\PhpScoper\NotInstantiable;
+use PhpParser\PhpVersion;
+use Symfony\Component\Console\Input\InputOption;
+
+/**
+ * @private
+ */
+final class PhpVersionInputOption
+{
+    use NotInstantiable;
+
+    private const PHP_VERSION_OPT = 'php-version';
+
+    public static function createInputOption(): InputOption
+    {
+        return new InputOption(
+            self::PHP_VERSION_OPT,
+            null,
+            InputOption::VALUE_REQUIRED,
+            'PHP version in which the PHP parser and printer will be configured, e.g. "7.2".',
+        );
+    }
+
+    public static function getPhpVersion(IO $io): ?PhpVersion
+    {
+        $version = $io
+            ->getTypedOption(self::PHP_VERSION_OPT)
+            ->asNullableString();
+
+        return null === $version
+            ? $version
+            : PhpVersion::fromString($version);
+    }
+}

tests/Console/InputOption/PhpVersionInputOptionTest.php

@@ -0,0 +1,65 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the humbug/php-scoper package.
+ *
+ * Copyright (c) 2017 Théo FIDRY <[email protected]>,
+ *                    Pádraic Brady <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Humbug\PhpScoper\Console\InputOption;
+
+use Fidry\Console\IO;
+use PhpParser\PhpVersion;
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Console\Input\ArrayInput;
+use Symfony\Component\Console\Input\InputDefinition;
+
+/**
+ * @internal
+ */
+#[CoversClass(PhpVersionInputOption::class)]
+final class PhpVersionInputOptionTest extends TestCase
+{
+    #[DataProvider('provideInput')]
+    public function test_it_can_parse_the_php_version(IO $io, ?PhpVersion $expected): void
+    {
+        $actual = PhpVersionInputOption::getPhpVersion($io);
+
+        self::assertEquals($expected, $actual);
+    }
+
+    public static function provideInput(): iterable
+    {
+        yield [
+            self::createIO(null),
+            null,
+        ];
+
+        yield [
+            self::createIO('8.2'),
+            PhpVersion::fromComponents(8, 2),
+        ];
+    }
+
+    private static function createIO(?string $value): IO
+    {
+        $input = new ArrayInput(
+            null === $value
+                ? []
+                : [
+                    '--php-version' => $value,
+                ],
+        );
+        $input->bind(new InputDefinition([PhpVersionInputOption::createInputOption()]));
+
+        return IO::createNull()->withInput($input);
+    }
+}