data cloud: add explanaiton to pulled checksums save

iterative · Jan 22, 2020 · e36cc8c · e36cc8c
1 parent a148d16
commit e36cc8c
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/dvc/data_cloud.py b/dvc/data_cloud.py
@@ -87,6 +87,10 @@ def _save_pulled_checksums(self, cache):
         for checksum in cache["local"].keys():
             cache_file = self.repo.cache.local.checksum_to_path_info(checksum)
             if self.repo.cache.local.exists(cache_file):
+                # We can safely save here, as existing corrupted files will be
+                # removed upon status, while files corrupted during download
+                # will not be copied from tmp_file (see download
+                # implementation in `remote/base`)
                 self.repo.state.save(cache_file, checksum)
 
     def status(self, cache, jobs=None, remote=None, show_checksums=False):