Fixed git synchronization (#1582)

* fixed git synchronization

* Update CHANGELOG.md

Co-authored-by: Nikita Manovich <40690625+nmanovic@users.noreply.github.com>

CHANGELOG.md

@@ -49,7 +49,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed COCO keypoints skeleton parsing and saving (https://github.com/opencv/cvat/issues/1539)
 - Fixed an error when exporting a task with cuboids to any format except CVAT (https://github.com/opencv/cvat/pull/1577)
 - `tf.placeholder() is not compatible with eager execution` exception for auto_segmentation (https://github.com/opencv/cvat/pull/1562)
-- Fixed a problem with mask to polygons conversion when polygons are too small (https://github.com/opencv/cvat/pull/1581)
+- Synchronization with remote git repo (https://github.com/opencv/cvat/pull/1582)
+- A problem with mask to polygons conversion when polygons are too small (https://github.com/opencv/cvat/pull/1581)
 
 ### Security
 -

cvat/apps/git/git.py

@@ -10,13 +10,12 @@ import re
 import shutil
 import subprocess
 from glob import glob
-from tempfile import TemporaryDirectory
+import zipfile
 
 import django_rq
 import git
 from django.db import transaction
 from django.utils import timezone
-from pyunpack import Archive
 
 from cvat.apps.dataset_manager.task import export_task
 from cvat.apps.engine.log import slogger
@@ -284,16 +283,16 @@ class Git:
         if ext == '.zip':
             shutil.move(dump_name, self._annotation_file)
         elif ext == '.xml':
-            with TemporaryDirectory() as tmp_dir:
-                # TODO: remove extra packing-unpacking
-                Archive(src_path).extractall(tmp_dir)
-                anno_paths = glob(osp.join(tmp_dir, '**', '*.xml'),
-                    recursive=True)
-                shutil.move(anno_paths[0], self._annotation_file)
+            with zipfile.ZipFile(dump_name) as archive:
+                for f in archive.namelist():
+                    if f.endswith('.xml'):
+                        with open(self._annotation_file, 'wb') as output:
+                            output.write(archive.read(f))
+                        break
+            os.remove(dump_name)
         else:
             raise Exception("Got unknown annotation file type")
 
-        os.remove(dump_name)
         self._rep.git.add(self._annotation_file)
 
         # Merge diffs