Catch errors and log them

obs/update_unstable.py

@@ -61,8 +61,15 @@ def project_exists(project: str) -> bool:
 def get_remote_hash(url: str, branch: str = "master") -> str:
 
     gitcmd = git.cmd.Git()
-    revision = gitcmd.ls_remote(url, f"refs/heads/{branch}",
-                                quiet=True, refs=True)
+    try:
+        revision = gitcmd.ls_remote(url, f"refs/heads/{branch}",
+                                    quiet=True, refs=True)
+    except git.exc.GitCommandError:
+        # Catch API errors
+        return
+
+    if not revision:
+        return
     git_hash, branch = revision.split("\t")
     return git_hash
 
@@ -168,6 +175,10 @@ class RepoUpdater:
             local_hash = self._data[repository].get(kde_name, "")
             remote_hash = get_remote_hash(url, branch)
 
+            if remote_hash is None:
+                logging.error("Failed to update repo at URL %s", url)
+                continue
+
             if local_hash != remote_hash:
                 logging.debug("Hash doesn't match, marking as changed")
                 to_update[repo] = remote_hash