MC-29874: [Magento Cloud] Unable to delete CSV files from Export Grid

Author: nikita-shcherbatykh

app/code/Magento/ImportExport/Ui/Component/Columns/ExportGridActions.php

@@ -56,11 +56,11 @@ public function prepareDataSource(array $dataSource)
                 $name = $this->getData('name');
                 if (isset($item['file_name'])) {
                     $item[$name]['view'] = [
-                        'href' => $this->urlBuilder->getUrl(Download::URL, ['filename' => $item['file_name']]),
+                        'href' => $this->urlBuilder->getUrl(Download::URL, ['_query' => ['filename' => $item['file_name']]]),
                         'label' => __('Download')
                     ];
                     $item[$name]['delete'] = [
-                        'href' => $this->urlBuilder->getUrl(Delete::URL, ['filename' => $item['file_name']]),
+                        'href' => $this->urlBuilder->getUrl(Delete::URL, ['_query' => ['filename' => $item['file_name']]]),
                         'label' => __('Delete'),
                         'confirm' => [
                             'title' => __('Delete'),

app/code/Magento/ImportExport/Ui/DataProvider/ExportFileDataProvider.php

@@ -100,7 +100,7 @@ public function getData()
         }
         $result = [];
         foreach ($files as $file) {
-            $result['items'][]['file_name'] = $this->fileIO->getPathInfo($file)['basename'];
+            $result['items'][]['file_name'] = $this->getPathToExportFile($this->fileIO->getPathInfo($file));
         }
 
         $pageSize = (int) $this->request->getParam('paging')['pageSize'];
@@ -112,6 +112,31 @@ public function getData()
         return $result;
     }
 
+    /**
+     * Return relative export file path after "var/export"
+     *
+     * @param mixed $file
+     * @return string
+     */
+    private function getPathToExportFile($file): string
+    {
+        $directory = $this->fileSystem->getDirectoryRead(DirectoryList::VAR_DIR);
+        $delimiter = '/';
+        $cutPath = explode(
+            $delimiter,
+            $directory->getAbsolutePath() . 'export'
+        );
+        $filePath = explode(
+            $delimiter,
+            $file['dirname']
+        );
+
+        return ltrim(
+            implode($delimiter, array_diff($filePath, $cutPath)) . $delimiter . $file['basename'],
+            $delimiter
+        );
+    }
+
     /**
      * Get files from directory path, sort them by date modified and return sorted array of full path to files
      *
@@ -127,8 +152,10 @@ private function getExportFiles(string $directoryPath): array
             return [];
         }
         foreach ($files as $filePath) {
-            //phpcs:ignore Magento2.Functions.DiscouragedFunction
-            $sortedFiles[filemtime($filePath)] = $filePath;
+            if ($this->file->isFile($filePath)) {
+                //phpcs:ignore Magento2.Functions.DiscouragedFunction
+                $sortedFiles[filemtime($filePath)] = $filePath;
+            }
         }
         //sort array elements using key value
         krsort($sortedFiles);