Derive author from git var GIT_AUTHOR_IDENT

composer.json

@@ -12,7 +12,8 @@
   ],
   "require": {
     "php": "^8.0.0|^8.1.0|^8.2.0",
-    "captainhook/captainhook": "^5.12.0"
+    "captainhook/captainhook": "^5.12.0",
+    "sebastianfeldmann/git": "^3.14.0"
   },
   "require-dev": {
     "bitexpert/captainhook-infection": "^0.7.0",

src/bitExpert/CaptainHook/ValidateAuthor/GitIdentity.php

@@ -0,0 +1,45 @@
+<?php
+
+/*
+ * This file is part of the Captain Hook Validate Author plugin package.
+ *
+ * (c) bitExpert AG
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace bitExpert\CaptainHook\ValidateAuthor;
+
+final class GitIdentity
+{
+    public function __construct(private string $name, private string $email)
+    {
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function getEmail(): string
+    {
+        return $this->email;
+    }
+
+    /**
+     * Parses a git identity from an ident string as returned by e.g.
+     * `git var GIT_AUTHOR_IDENT` or `git var GIT_COMMITTER_IDENT`.
+     *
+     * @param string $ident
+     * @return self
+     */
+    public static function fromIdentString(string $ident): self
+    {
+        if (!(bool)preg_match('/^([^<]+) <([^>]+)>/', $ident, $matches)) {
+            throw new \RuntimeException('Could not parse git ident string');
+        }
+
+        return new self($matches[1], $matches[2]);
+    }
+}

src/bitExpert/CaptainHook/ValidateAuthor/ValidateAuthorAction.php

@@ -14,25 +14,15 @@
 use CaptainHook\App\Config;
 use CaptainHook\App\Console\IO;
 use CaptainHook\App\Hook\Action;
-use SebastianFeldmann\Cli\Command\Runner\Simple;
-use SebastianFeldmann\Cli\Processor\ProcOpen as Processor;
-use SebastianFeldmann\Git\Command\Config\Get;
-use SebastianFeldmann\Git\Command\Config\ListSettings\MapSettings;
 use SebastianFeldmann\Git\Repository;
 
 class ValidateAuthorAction implements Action
 {
-    /**
-     * @var Simple
-     */
-    private $runner;
-
     /**
      * Creates new {@link \bitExpert\CaptainHook\ValidateAuthor\ValidateAuthorAction}.
      */
     public function __construct()
     {
-        $this->runner = new Simple(new Processor());
     }
 
     /**
@@ -52,8 +42,10 @@ public function execute(Config $config, IO $io, Repository $repository, Config\A
             return;
         }
 
+        $authorIdentity = $this->getGitAuthorIdentity($repository);
+
         if (isset($options['name'])) {
-            $userName = $this->getConfig($repository, 'user.name');
+            $userName = $authorIdentity->getName();
             if (!(bool)preg_match($options['name'], $userName)) {
                 throw new \RuntimeException(
                     sprintf(
@@ -66,7 +58,7 @@ public function execute(Config $config, IO $io, Repository $repository, Config\A
         }
 
         if (isset($options['email'])) {
-            $userEmail = $this->getConfig($repository, 'user.email');
+            $userEmail = $authorIdentity->getEmail();
             if (!(bool)preg_match($options['email'], $userEmail)) {
                 throw new \RuntimeException(
                     sprintf(
@@ -79,21 +71,9 @@ public function execute(Config $config, IO $io, Repository $repository, Config\A
         }
     }
 
-    /**
-     * Returns the given config $setting for given $repository.
-     *
-     * @param Repository $repository
-     * @param string $setting
-     * @return string
-     */
-    protected function getConfig(Repository $repository, string $setting): string
+    protected function getGitAuthorIdentity(Repository $repository): GitIdentity
     {
-        $cmd = (new Get($repository->getRoot()))
-            ->name($setting);
-
-        $result = $this->runner->run($cmd, new MapSettings());
-        /** @var array<String> $output */
-        $output =$result->getFormattedOutput();
-        return (string) key($output);
+        $gitAuthorIdentString = $repository->getConfigOperator()->getVar('GIT_AUTHOR_IDENT');
+        return GitIdentity::fromIdentString($gitAuthorIdentString);
     }
 }

tests/bitExpert/CaptainHook/ValidateAuthor/GitIdentityUnitTest.php

@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of the Captain Hook Validate Author plugin package.
+ *
+ * (c) bitExpert AG
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace bitExpert\CaptainHook\ValidateAuthor;
+
+use PHPUnit\Framework\TestCase;
+
+class GitIdentityUnitTest extends TestCase
+{
+    /**
+     * @test
+     * @see https://git-scm.com/docs/git-var#_examples
+     */
+    public function parsesGitIdentStringToNameAndEmail(): void
+    {
+        $ident = GitIdentity::fromIdentString('Eric W. Biederman <ebiederm@lnxi.com> 1121223278 -0600');
+        self::assertSame('Eric W. Biederman', $ident->getName());
+        self::assertSame('ebiederm@lnxi.com', $ident->getEmail());
+    }
+}

tests/bitExpert/CaptainHook/ValidateAuthor/ValidateAuthorActionUnitTest.php

@@ -58,7 +58,7 @@ public function setUp(): void
         $this->io = $this->createMock(IO::class);
         $this->repository = $this->createMock(Repository::class);
         $this->action = $this->createMock(Action::class);
-        $this->hook = $this->createPartialMock(ValidateAuthorAction::class, ['getConfig']);
+        $this->hook = $this->createPartialMock(ValidateAuthorAction::class, ['getGitAuthorIdentity']);
     }
 
     /**
@@ -71,7 +71,7 @@ public function missingConfigurationStopsExecution(): void
             ->willReturn(new Options([]));
 
         $this->hook->expects(self::never())
-            ->method('getConfig');
+            ->method('getGitAuthorIdentity');
 
         $this->hook->execute($this->config, $this->io, $this->repository, $this->action);
     }
@@ -86,9 +86,9 @@ public function configuredNameRegexWillTriggerValidation(): void
             ->willReturn(new Options(['name' => '/Some author name/']));
 
         $this->hook->expects(self::once())
-            ->method('getConfig')
-            ->with($this->repository, 'user.name')
-            ->willReturn('Some author name');
+            ->method('getGitAuthorIdentity')
+            ->with($this->repository)
+            ->willReturn(new GitIdentity('Some author name', 'test@test.loc'));
 
         $this->hook->execute($this->config, $this->io, $this->repository, $this->action);
     }
@@ -103,9 +103,9 @@ public function nameValidationWillNotThrowExceptionIfMatches(): void
             ->willReturn(new Options(['name' => '/[A-F]+/']));
 
         $this->hook->expects(self::once())
-            ->method('getConfig')
-            ->with($this->repository, 'user.name')
-            ->willReturn('ABCDEF');
+            ->method('getGitAuthorIdentity')
+            ->with($this->repository)
+            ->willReturn(new GitIdentity('ABCDEF', 'test@test.loc'));
 
         $this->hook->execute($this->config, $this->io, $this->repository, $this->action);
     }
@@ -122,9 +122,9 @@ public function nameValidationWillThrowExceptionIfNotMatches(): void
             ->willReturn(new Options(['name' => '/^[1-9]+$/']));
 
         $this->hook->expects(self::once())
-            ->method('getConfig')
-            ->with($this->repository, 'user.name')
-            ->willReturn('ABCDEF');
+            ->method('getGitAuthorIdentity')
+            ->with($this->repository)
+            ->willReturn(new GitIdentity('ABCDEF', 'test@test.loc'));
 
         $this->hook->execute($this->config, $this->io, $this->repository, $this->action);
     }
@@ -139,9 +139,9 @@ public function configuredEmailRegexWillTriggerValidation(): void
             ->willReturn(new Options(['email' => '/test@test.loc/']));
 
         $this->hook->expects(self::once())
-            ->method('getConfig')
-            ->with($this->repository, 'user.email')
-            ->willReturn('test@test.loc');
+            ->method('getGitAuthorIdentity')
+            ->with($this->repository)
+            ->willReturn(new GitIdentity('Some author name', 'test@test.loc'));
 
         $this->hook->execute($this->config, $this->io, $this->repository, $this->action);
     }
@@ -156,9 +156,9 @@ public function emailValidationWillNotThrowExceptionIfMatches(): void
             ->willReturn(new Options(['email' => '/@/']));
 
         $this->hook->expects(self::once())
-            ->method('getConfig')
-            ->with($this->repository, 'user.email')
-            ->willReturn('test@test.loc');
+            ->method('getGitAuthorIdentity')
+            ->with($this->repository)
+            ->willReturn(new GitIdentity('Some author name', 'test@test.loc'));
 
         $this->hook->execute($this->config, $this->io, $this->repository, $this->action);
     }
@@ -175,9 +175,9 @@ public function emailValidationWillThrowExceptionIfNotMatches(): void
             ->willReturn(new Options(['email' => '/^[1-9]+$/']));
 
         $this->hook->expects(self::once())
-            ->method('getConfig')
-            ->with($this->repository, 'user.email')
-            ->willReturn('test@test.loc');
+            ->method('getGitAuthorIdentity')
+            ->with($this->repository)
+            ->willReturn(new GitIdentity('Some author name', 'test@test.loc'));
 
         $this->hook->execute($this->config, $this->io, $this->repository, $this->action);
     }