Function set_expected

misc/incremental_checker.py:211–241

Populates the given `cache` with the expected results for all of the given `commits`. This function runs mypy on the `target_file_path` inside the `temp_repo_path`, and stores the result in the `cache`. If `cache` already contains results for a particular commit, this function will

(
    commits: list[tuple[str, str]],
    cache: JsonDict,
    temp_repo_path: str,
    target_file_path: str | None,
    mypy_cache_path: str,
    mypy_script: str | None,
)

def set_expected(
    commits: list[tuple[str, str]],
    cache: JsonDict,
    temp_repo_path: str,
    target_file_path: str | None,
    mypy_cache_path: str,
    mypy_script: str | None,
) -> None:
    """Populates the given `cache` with the expected results for all of the given `commits`.

    This function runs mypy on the `target_file_path` inside the `temp_repo_path`, and stores
    the result in the `cache`.

    If `cache` already contains results for a particular commit, this function will
    skip evaluating that commit and move on to the next."""
    for commit_id, message in commits:
        if commit_id in cache:
            print(f'Skipping commit (already cached): {commit_id}: "{message}"')
        else:
            print(f'Caching expected output for commit {commit_id}: "{message}"')
            execute(["git", "-C", temp_repo_path, "checkout", commit_id])
            runtime, output, stats = run_mypy(
                target_file_path, mypy_cache_path, mypy_script, incremental=False
            )
            cache[commit_id] = {"runtime": runtime, "output": output}
            if output == "":
                print(f"    Clean output ({runtime:.3f} sec)")
            else:
                print(f"    Output ({runtime:.3f} sec)")
                print_offset(output, 8)
    print()


def test_incremental(