Class OutputDuplicationError

dvc/exceptions.py:29–59

Thrown if a file/directory is specified as an output in more than one stage. Args: output (unicode): path to the file/directory. stages (list): list of paths to stages.

class OutputDuplicationError(DvcException):
    """Thrown if a file/directory is specified as an output in more than one
    stage.

    Args:
        output (unicode): path to the file/directory.
        stages (list): list of paths to stages.
    """

    def __init__(self, output: str, stages: set["Stage"]):
        from funcy import first

        assert isinstance(output, str)
        assert all(hasattr(stage, "relpath") for stage in stages)
        if len(stages) == 1:
            stage = first(stages)
            msg = (
                f"output '{output}' is already specified in {stage}."
                f"\nUse `dvc remove {stage.addressing}` to stop tracking the "
                "overlapping output."
            )
        else:
            stage_names = "\n".join(["\t- " + s.addressing for s in stages])
            msg = (
                f"output '{output}' is specified in:\n{stage_names}"
                "\nUse `dvc remove` with any of the above targets to stop tracking the "
                "overlapping output."
            )
        super().__init__(msg)
        self.stages = stages
        self.output = output


class OutputNotFoundError(DvcException):