Extract PulledFilesystem out of import.php

packages/reprint-importer/src/lib/filesystem/class-preserve-local-skip-exception.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Reprint\Importer\Filesystem;
+
+use RuntimeException;
+
+/**
+ * A preserve-local rule prevented a filesystem mutation.
+ */
+class PreserveLocalSkipException extends RuntimeException {}

packages/reprint-importer/src/lib/filesystem/class-pulled-file-context.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Reprint\Importer\Filesystem;
+
+/**
+ * Mutable file state retained while one remote file arrives in chunks.
+ */
+class PulledFileContext {
+	/** @var resource|null */
+	public $file_handle = null;
+
+	/** @var string|null */
+	public $file_path = null;
+
+	/** @var int|null */
+	public $file_ctime = null;
+
+	/** @var int */
+	public $file_bytes_written = 0;
+
+	/** @var bool */
+	public $skip_current_file = false;
+}