diff --git a/src/Command/UpdateAllProjects.php b/src/Command/UpdateAllProjects.php
index 92afd8a11dfa06b8e799c47e649a52c76acbba50..41d7c46298552527d0a9898932ecbf11f077179e 100644
--- a/src/Command/UpdateAllProjects.php
+++ b/src/Command/UpdateAllProjects.php
@@ -71,29 +71,27 @@ class UpdateAllProjects extends Command
 
         $legacy_root = $this->kernel->getProjectDir() . '/legacy';
         $capsule_prototype_root = './capsule-prototype';
-        $blackList = array(
-            'css', 'create.zip', 'favicon.ico', 'la-page-des-malins.php', 'js', 'php',  'shared', '.', '..'
-        );
+        $black_list = ['css', 'create.zip', 'favicon.ico', 'la-page-des-malins.php', 'js', 'php',  'shared', '.', '..'];
 
         $directory_files = scandir($legacy_root);
         if (false === $directory_files) {
             return Command::FAILURE;
         }
 
-        $all_file_in_directory = array_diff($directory_files, $blackList);
+        $all_file_in_directory = array_diff($directory_files, $black_list);
 
-        $phpFiles = glob($capsule_prototype_root . '/php/*.php');
+        $php_files = glob($capsule_prototype_root . '/php/*.php');
         // add +1 for index.html file
-        $phpFilesCountPerProjects = count($phpFiles ?:  []) + 1;
+        $php_files_count_per_projects = count($php_files ?:  []) + 1;
 
-        $allProjectsProgressBar = new ProgressBar($output->section());
-        $allProjectsProgressBar->setFormat(
+        $all_projects_progress_bar = new ProgressBar($output->section());
+        $all_projects_progress_bar->setFormat(
             '%current%/%max% [%bar%] %percent%% : Overall project update progressing (%elapsed%)'
         );
-        $allProjectsProgressBar->SetMessage('Projects update progress');
-        $allProjectsProgressBar->start();
+        $all_projects_progress_bar->SetMessage('Projects update progress');
+        $all_projects_progress_bar->start();
 
-        foreach ($allProjectsProgressBar->iterate($all_file_in_directory) as $value) {
+        foreach ($all_projects_progress_bar->iterate($all_file_in_directory) as $value) {
             $current_legacy_path = Path::normalize($legacy_root . '/' . $value);
 
             if (!$this->filesystem->exists($current_legacy_path)) {
@@ -104,15 +102,15 @@ class UpdateAllProjects extends Command
                 continue;
             }
 
-            if (in_array($value, $blackList)) {
+            if (in_array($value, $black_list)) {
                 continue;
             }
 
-            $progressBar = new ProgressBar($output->section(), $phpFilesCountPerProjects);
-            $progressBar->setFormat('project_update_message');
-            $progressBar->setMessage($current_legacy_path, 'project');
+            $progress_bar = new ProgressBar($output->section(), $php_files_count_per_projects);
+            $progress_bar->setFormat('project_update_message');
+            $progress_bar->setMessage($current_legacy_path, 'project');
 
-            $progressBar->start();
+            $progress_bar->start();
 
             // override index.html
             $this->filesystem->copy(
@@ -120,7 +118,7 @@ class UpdateAllProjects extends Command
                 Path::normalize($current_legacy_path . '/index.html'),
                 true
             );
-            $progressBar->advance();
+            $progress_bar->advance();
 
             // override php files
             $this->filesystem->mirror(
@@ -129,23 +127,13 @@ class UpdateAllProjects extends Command
                 null,
                 ['override' => true, 'delete' => true ]
             );
-            $progressBar->advance($phpFilesCountPerProjects - 1);
-            $progressBar->finish();
-            $allProjectsProgressBar->advance($phpFilesCountPerProjects);
+            $progress_bar->advance($php_files_count_per_projects - 1);
+            $progress_bar->finish();
+            $all_projects_progress_bar->advance($php_files_count_per_projects);
         }
 
-        $allProjectsProgressBar->finish();
+        $all_projects_progress_bar->finish();
 
-        // return this if there was no problem running the command
-        // (it's equivalent to returning int(0))
         return Command::SUCCESS;
-
-        // or return this if some error happened during the execution
-        // (it's equivalent to returning int(1))
-        // return Command::FAILURE;
-
-        // or return this to indicate incorrect command usage; e.g. invalid options
-        // or missing arguments (it's equivalent to returning int(2))
-        // return Command::INVALID
     }
 }