series management tuning and import archive extraction troubleshooting

app/utils/image_importer.py

@@ -332,10 +332,25 @@ def _run_cmd(cmd: list[str]) -> tuple[int, str, str]:
     return p.returncode, p.stdout, p.stderr
 
 
+def _count_extracted_files(out_dir: str) -> int:
+    """Count all files (recursively) in the output directory."""
+    count = 0
+    for root, dirs, files in os.walk(out_dir):
+        count += len(files)
+    return count
+
+
 def extract_with_unar(archive_path: str, out_dir: str) -> None:
     os.makedirs(out_dir, exist_ok=True)
     rc, out, err = _run_cmd(["unar", "-o", out_dir, archive_path])
     if rc != 0:
+        # Check if files were actually extracted (partial success)
+        # unar may return non-zero even when most files extracted successfully
+        extracted_files = _count_extracted_files(out_dir)
+        if extracted_files > 0:
+            # Partial extraction - log warning but continue
+            log.warning(f"unar partial extraction (rc={rc}): {extracted_files} files extracted from {archive_path}")
+            return
         raise ExtractError(f"unar failed (rc={rc})\nSTDOUT:\n{out}\nSTDERR:\n{err}")
 
 
@@ -343,6 +358,12 @@ def extract_with_7z(archive_path: str, out_dir: str) -> None:
     os.makedirs(out_dir, exist_ok=True)
     rc, out, err = _run_cmd(["7z", "x", "-y", f"-o{out_dir}", archive_path])
     if rc != 0:
+        # Check if files were actually extracted (partial success)
+        extracted_files = _count_extracted_files(out_dir)
+        if extracted_files > 0:
+            # Partial extraction - log warning but continue
+            log.warning(f"7z partial extraction (rc={rc}): {extracted_files} files extracted from {archive_path}")
+            return
         raise ExtractError(f"7z failed (rc={rc})\nSTDOUT:\n{out}\nSTDERR:\n{err}")