mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-28 02:48:03 +00:00
Davide Galassi
7035034710
Currently the CLI `-h/--help` commad output is almost unreadable as (for some commands) it: - doesn't provide a short brief of what the command does. - doesn't separate the options description in smaller paragraphs. - doesn't use a smart wrap strategy for lines longer than the number of columns in the terminal. Follow some pics taken with a 100 cols wide term ## Short help (./node -h) ### Before  ### After  ## Long help (./node --help) ### Before  ### After  --------- Co-authored-by: command-bot <>
46 lines
1.6 KiB
Rust
46 lines
1.6 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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use clap::Args;
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use std::str::FromStr;
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/// Parameters used to config runtime.
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#[derive(Debug, Clone, Args)]
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pub struct RuntimeParams {
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/// The size of the instances cache for each runtime [max: 32].
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///
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/// Values higher than 32 are illegal.
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#[arg(long, default_value_t = 8, value_parser = parse_max_runtime_instances)]
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pub max_runtime_instances: usize,
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/// Maximum number of different runtimes that can be cached.
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#[arg(long, default_value_t = 2)]
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pub runtime_cache_size: u8,
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}
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fn parse_max_runtime_instances(s: &str) -> Result<usize, String> {
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let max_runtime_instances = usize::from_str(s)
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.map_err(|_err| format!("Illegal `--max-runtime-instances` value: {s}"))?;
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if max_runtime_instances > 32 {
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Err(format!("Illegal `--max-runtime-instances` value: {max_runtime_instances} is more than the allowed maximum of `32` "))
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} else {
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Ok(max_runtime_instances)
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}
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}
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