Handle cases where no rate limiting is used

ghsearch/gh_search.py

@@ -3,6 +3,7 @@
 import click
 import github
 from github.ContentFile import ContentFile
+from github.GithubException import GithubException
 from github.Rate import Rate
 from github.RateLimit import RateLimit
 
@@ -52,13 +53,25 @@ def __init__(self, client: github.Github, filters: List[Filter], verbose: bool =
         self.filters = filters
         self.verbose = verbose
 
+    def get_rate_limit(self) -> RateLimit | None:
+        try:
+            return self.client.get_rate_limit()
+        except GithubException as ge:
+            # 404 means that rate limiting is disabled
+            if ge.status == 404:
+                return None
+            raise ge
+
     def get_filtered_results(self, query: List[str]) -> List[ContentFile]:
-        rate_limit = self.client.get_rate_limit()
-        if self.verbose:
+        rate_limit = self.get_rate_limit()
+
+        if rate_limit and self.verbose:
             _echo_rate_limits(rate_limit)
 
         results = self.client.search_code(query=" ".join(query))
-        self._check_core_limit_threshold(results.totalCount, rate_limit.core)
+
+        if rate_limit:
+            self._check_core_limit_threshold(results.totalCount, rate_limit.core)
 
         filtered_results = []
         with ProgressPrinter(overwrite=not self.verbose) as printer:
@@ -74,8 +87,9 @@ def get_filtered_results(self, query: List[str]) -> List[ContentFile]:
                     elif self.verbose:
                         click.echo(f"Skipping result for {result.repository.full_name} via {exclude_reason}")
 
-        if self.verbose:
-            _echo_rate_limits(self.client.get_rate_limit())
+        rate_limit = self.get_rate_limit()
+        if rate_limit and self.verbose:
+            _echo_rate_limits(rate_limit)
 
         return filtered_results
 

tests/unit/gh_search_test.py

@@ -127,3 +127,15 @@ def test_get_filtered_results_many_calls(mock_client, mock_click):
 Do you want to continue?""".strip(),
         abort=True,
     )
+
+
+def test_get_filtered_results_rate_limiting_disabled(mock_client):
+    mock_client.get_rate_limit.side_effect = github.GithubException(404, "Not Found")
+    mock_filter = Mock()
+    mock_filter.uses_core_api = True
+
+    ghsearch = GHSearch(mock_client, [])
+    ghsearch.get_filtered_results(["query", "org:bort"])
+
+    # ensure get_rate_limit was called (and the side_effect above handled)
+    mock_client.get_rate_limit.assert_called()