feat: Add a --with-exit-status flag

app/Actions/ElaborateSummary.php

@@ -51,7 +51,7 @@ public function execute($totalFiles, $changes)
             $this->summaryOutput->handle($summary, $totalFiles);
         }
 
-        $failure = ($summary->isDryRun() && count($changes) > 0)
+        $failure = (($summary->isDryRun() || $this->input->getOption('with-exit-status')) && count($changes) > 0)
             || count($this->errors->getInvalidErrors()) > 0
             || count($this->errors->getExceptionErrors()) > 0
             || count($this->errors->getLintErrors()) > 0;

app/Commands/DefaultCommand.php

@@ -43,6 +43,7 @@ protected function configure()
                     new InputOption('dirty', '', InputOption::VALUE_NONE, 'Only fix files that have uncommitted changes'),
                     new InputOption('format', '', InputOption::VALUE_REQUIRED, 'The output format that should be used'),
                     new InputOption('cache-file', '', InputArgument::OPTIONAL, 'The path to the cache file'),
+                    new InputOption('with-exit-status', '', InputOption::VALUE_NONE, 'Exit with status 1 if there were any changes made, 0 otherwise'),
                 ]
             );
     }

tests/Feature/WithExitStatusTest.php

@@ -0,0 +1,34 @@
+<?php
+
+beforeEach(function () {
+    $this->contents = file_get_contents(base_path('tests/Fixtures/with-fixable-issues/file.php'));
+});
+
+afterEach(function () {
+    file_put_contents(base_path('tests/Fixtures/with-fixable-issues/file.php'), $this->contents);
+});
+
+it('exits with status 1 with fixes', function () {
+    [$statusCode, $output] = run('default', [
+        'path' => base_path('tests/Fixtures/with-fixable-issues'),
+        '--preset' => 'psr12',
+        '--with-exit-status' => true,
+        '--test' => false,
+    ]);
+
+    expect($statusCode)->toBe(1)
+        ->and($output)
+        ->toContain('FIXED');
+});
+
+it('exits with status 0 without fixes', function () {
+    [$statusCode, $output] = run('default', [
+        'path' => base_path('tests/Fixtures/without-issues'),
+        '--with-exit-status' => true,
+        '--test' => false,
+    ]);
+
+    expect($statusCode)->toBe(0)
+        ->and($output)
+        ->toContain('PASS');
+});