Method collect_usage_pieces

src/click/core.py:1132–1141

Returns all the pieces that go into the usage line and returns it as a list of strings.

(self, ctx: Context)

        formatter.write_usage(ctx.command_path, " ".join(pieces))

    def collect_usage_pieces(self, ctx: Context) -> list[str]:
        """Returns all the pieces that go into the usage line and returns
        it as a list of strings.
        """
        rv = [self.options_metavar] if self.options_metavar else []

        for param in self.get_params(ctx):
            rv.extend(param.get_usage_pieces(ctx))

        return rv

    def get_help_option_names(self, ctx: Context) -> list[str]:
        """Returns the names for the help option."""