add JsonOutputFormatter

packages/ConsoleDiffer/src/DifferAndFormatter.php

@@ -23,13 +23,22 @@ final class DifferAndFormatter
         $this->diffConsoleFormatter = $diffConsoleFormatter;
     }
 
+    public function diff(string $old, string $new): string
+    {
+        if ($old === $new) {
+            return '';
+        }
+
+        return $this->differ->diff($old, $new);
+    }
+
     public function diffAndFormat(string $old, string $new): string
     {
         if ($old === $new) {
             return '';
         }
 
-        $diff = $this->differ->diff($old, $new);
+        $diff = $this->diff($old, $new);
 
         return $this->diffConsoleFormatter->format($diff);
     }

rector.yaml

@@ -17,4 +17,4 @@ parameters:
     php_version_features: '7.1'
 
 services:
-#    Rector\CodingStyle\Rector\Namespace_\ImportFullyQualifiedNamesRector: ~
+    Rector\CodingStyle\Rector\Namespace_\ImportFullyQualifiedNamesRector: ~

src/Application/ErrorAndDiffCollector.php

@@ -83,6 +83,7 @@ final class ErrorAndDiffCollector
         // always keep the most recent diff
         $this->fileDiffs[$smartFileInfo->getRealPath()] = new FileDiff(
             $smartFileInfo->getRealPath(),
+            $this->differAndFormatter->diff($oldContent, $newContent),
             $this->differAndFormatter->diffAndFormat($oldContent, $newContent),
             $appliedRectors
         );

src/Console/Output/ConsoleOutputFormatter.php

@@ -49,7 +49,7 @@ final class ConsoleOutputFormatter implements OutputFormatterInterface
         foreach ($fileDiffs as $fileDiff) {
             $this->symfonyStyle->writeln(sprintf('<options=bold>%d) %s</>', ++$i, $fileDiff->getFile()));
             $this->symfonyStyle->newLine();
-            $this->symfonyStyle->writeln($fileDiff->getDiff());
+            $this->symfonyStyle->writeln($fileDiff->getDiffConsoleFormatted());
             $this->symfonyStyle->newLine();
 
             if ($fileDiff->getAppliedRectorClasses() !== []) {

src/Console/Output/JsonOutputFormatter.php

@@ -0,0 +1,80 @@
+<?php declare(strict_types=1);
+
+namespace Rector\Console\Output;
+
+use Nette\Utils\Json;
+use Rector\Application\Error;
+use Rector\Contract\Console\Output\OutputFormatterInterface;
+use Rector\Reporting\FileDiff;
+use Symfony\Component\Console\Style\SymfonyStyle;
+
+final class JsonOutputFormatter implements OutputFormatterInterface
+{
+    /**
+     * @var SymfonyStyle
+     */
+    private $symfonyStyle;
+
+    public function __construct(SymfonyStyle $symfonyStyle)
+    {
+        $this->symfonyStyle = $symfonyStyle;
+    }
+
+    public function getName(): string
+    {
+        return 'json';
+    }
+
+    /**
+     * @param FileDiff[] $fileDiffs
+     */
+    public function reportFileDiffs(array $fileDiffs): void
+    {
+        $errorsArray = [];
+        $errorsArray['totals']['changed_files'] = count($fileDiffs);
+
+        ksort($fileDiffs);
+
+        foreach ($fileDiffs as $fileDiff) {
+            $errorsArray['file_diffs'][] = [
+                'file' => $fileDiff->getFile(),
+                'diff' => $fileDiff->getDiff(),
+                'applied_rectors' => $fileDiff->getAppliedRectorClasses(),
+            ];
+        }
+
+        $json = Json::encode($errorsArray, Json::PRETTY);
+
+        $this->symfonyStyle->writeln($json);
+    }
+
+    /**
+     * @param Error[] $errors
+     */
+    public function reportErrors(array $errors): void
+    {
+        $errorsArray = [];
+        $errorsArray['totals']['errors'] = count($errors);
+
+        foreach ($errors as $error) {
+            $errorData = [
+                'message' => $error->getMessage(),
+                'file' => $error->getFileInfo()->getPathname(),
+            ];
+
+            if ($error->getRectorClass()) {
+                $errorData['caused_by'] = $error->getRectorClass();
+            }
+
+            if ($error->getLine() !== null) {
+                $errorData['line'] = $error->getLine();
+            }
+
+            $errorsArray['errors'][] = $errorData;
+        }
+
+        $json = Json::encode($errorsArray, Json::PRETTY);
+
+        $this->symfonyStyle->writeln($json);
+    }
+}

src/Reporting/FileDiff.php

@@ -19,14 +19,24 @@ final class FileDiff
      */
     private $appliedRectorClasses = [];
 
+    /**
+     * @var string
+     */
+    private $diffConsoleFormatted;
+
     /**
      * @param string[] $appliedRectorClasses
      */
-    public function __construct(string $file, string $diff, array $appliedRectorClasses = [])
-    {
+    public function __construct(
+        string $file,
+        string $diff,
+        string $diffConsoleFormatted,
+        array $appliedRectorClasses = []
+    ) {
         $this->file = $file;
         $this->diff = $diff;
         $this->appliedRectorClasses = $appliedRectorClasses;
+        $this->diffConsoleFormatted = $diffConsoleFormatted;
     }
 
     public function getDiff(): string
@@ -34,6 +44,11 @@ final class FileDiff
         return $this->diff;
     }
 
+    public function getDiffConsoleFormatted(): string
+    {
+        return $this->diffConsoleFormatted;
+    }
+
     public function getFile(): string
     {
         return $this->file;