soil_cli/commands/
purge_chain_cmd.rs

1// This file is part of Soil.
2
3// Copyright (C) Soil contributors.
4// Copyright (C) Parity Technologies (UK) Ltd.
5// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
6
7use crate::{
8	error,
9	params::{DatabaseParams, SharedParams},
10	CliConfiguration,
11};
12use clap::Parser;
13use soil_service::DatabaseSource;
14use std::{
15	fmt::Debug,
16	fs,
17	io::{self, Write},
18};
19
20/// The `purge-chain` command used to remove the whole chain.
21#[derive(Debug, Clone, Parser)]
22pub struct PurgeChainCmd {
23	/// Skip interactive prompt by answering yes automatically.
24	#[arg(short = 'y')]
25	pub yes: bool,
26
27	#[allow(missing_docs)]
28	#[clap(flatten)]
29	pub shared_params: SharedParams,
30
31	#[allow(missing_docs)]
32	#[clap(flatten)]
33	pub database_params: DatabaseParams,
34}
35
36impl PurgeChainCmd {
37	/// Run the purge command
38	pub fn run(&self, database_config: DatabaseSource) -> error::Result<()> {
39		let db_path = database_config.path().and_then(|p| p.parent()).ok_or_else(|| {
40			error::Error::Input("Cannot purge custom database implementation".into())
41		})?;
42
43		if !self.yes {
44			print!("Are you sure to remove {:?}? [y/N]: ", &db_path);
45			io::stdout().flush().expect("failed to flush stdout");
46
47			let mut input = String::new();
48			io::stdin().read_line(&mut input)?;
49			let input = input.trim();
50
51			match input.chars().next() {
52				Some('y') | Some('Y') => {},
53				_ => {
54					println!("Aborted");
55					return Ok(());
56				},
57			}
58		}
59
60		match fs::remove_dir_all(&db_path) {
61			Ok(_) => {
62				println!("{:?} removed.", &db_path);
63				Ok(())
64			},
65			Err(ref err) if err.kind() == io::ErrorKind::NotFound => {
66				eprintln!("{:?} did not exist.", &db_path);
67				Ok(())
68			},
69			Err(err) => Result::Err(err.into()),
70		}
71	}
72}
73
74impl CliConfiguration for PurgeChainCmd {
75	fn shared_params(&self) -> &SharedParams {
76		&self.shared_params
77	}
78
79	fn database_params(&self) -> Option<&DatabaseParams> {
80		Some(&self.database_params)
81	}
82}
soil_cli/commands/purge_chain_cmd.rs

soil_cli/commands/
purge_chain_cmd.rs
