only warn about unexpected responses from gh CLI

Author: epwalsh

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Export `UV_PROJECT_ENVIRONMENT` when `--uv-venv` is set so that `uv sync` targets the correct virtual environment instead of ignoring it.
+- Only warn when we get an unexpected response from the GitHub CLI.
 
 ## [v3.5.1](https://github.com/allenai/beaker-gantry/releases/tag/v3.5.1) - 2026-03-02
 

gantry/commands/main.py

@@ -104,6 +104,7 @@ def main(quiet: bool = False, check_for_upgrades: bool | None = None, log_level:
         format="%(message)s",
         handlers=[utils.RichHandler()],
     )
+    logging.captureWarnings(True)
 
     # Handle SIGTERM just like KeyboardInterrupt
     signal.signal(signal.SIGTERM, handle_sigterm)

gantry/git_utils.py

@@ -313,10 +313,7 @@ def from_env(cls, ref: str | None = None, branch: str | None = None) -> GitRepoS
                         f"Unexpected response from the GitHub API while validating git ref '{git_ref}' on remote:\n"
                         f"{res.stdout}\n{res.stderr}"
                     )
-                    if is_running_in_gantry_batch_job():
-                        warnings.warn(msg, RuntimeWarning)
-                    else:
-                        raise RuntimeError(msg)
+                    warnings.warn(msg, RuntimeWarning)
 
         # Resolve branch.
         branch_name: str | None = branch