feat: add options for soft-deletion of channels and packages (#681)

quetz/config.py

@@ -225,6 +225,13 @@ class Config:
             ],
             required=False,
         ),
+        ConfigSection(
+            "storage",
+            [
+                ConfigEntry("soft_delete_channel", bool, required=False, default=False),
+                ConfigEntry("soft_delete_package", bool, required=False, default=False),
+            ],
+        ),
     ]
     _config_dirs = [_site_dir, _user_dir]
     _config_files = [os.path.join(d, _filename) for d in _config_dirs]

quetz/main.py

@@ -653,11 +653,13 @@ def delete_channel(
     channel: db_models.Channel = Depends(get_channel_allow_proxy),
     dao: Dao = Depends(get_dao),
     auth: authorization.Rules = Depends(get_rules),
+    config=Depends(get_config),
 ):
     auth.assert_delete_channel(channel)
     dao.delete_channel(channel.name)
     try:
-        pkgstore.remove_channel(channel.name)
+        if not config.storage_soft_delete_channel:
+            pkgstore.remove_channel(channel.name)
     except FileNotFoundError:
         logger.warning(
             f"trying to remove non-existent package store for channel {channel.name}"
@@ -895,7 +897,8 @@ def delete_package(
     db.commit()
 
     for filename in filenames:
-        pkgstore.delete_file(channel_name, filename)
+        if not config.storage_soft_delete_package:
+            pkgstore.delete_file(channel_name, filename)
 
     dao.update_channel_size(channel_name)
 
@@ -1162,7 +1165,8 @@ def delete_package_version(
     db.commit()
 
     path = os.path.join(platform, filename)
-    pkgstore.delete_file(channel_name, path)
+    if not config.storage_soft_delete_package:
+        pkgstore.delete_file(channel_name, path)
 
     dao.cleanup_channel_db(channel_name, package_name)
     dao.update_channel_size(channel_name)