Method run

dvc/commands/diff.py:118–152

(self)

        ui.write("files summary:", states_summary)

    def run(self):
        from dvc.exceptions import DvcException

        try:
            diff = self.repo.diff(self.args.a_rev, self.args.b_rev, self.args.targets)
            show_hash = self.args.show_hash
            hide_missing = self.args.b_rev or self.args.hide_missing
            if hide_missing:
                diff.pop("not in cache", None)

            for key, entries in diff.items():
                entries = sorted(
                    entries,
                    key=lambda entry: (
                        entry["path"]["old"]
                        if isinstance(entry["path"], dict)
                        else entry["path"]
                    ),
                )
                if not show_hash:
                    for entry in entries:
                        del entry["hash"]
                diff[key] = entries

            if self.args.json:
                ui.write_json(diff)
            elif self.args.markdown:
                _show_markdown(diff, show_hash, hide_missing)
            elif diff:
                self._show_diff(diff, hide_missing)

        except DvcException:
            logger.exception("failed to get diff")
            return 1
        return 0


def add_parser(subparsers, parent_parser):