use crate::{
error,
params::{DatabaseParams, SharedParams},
CliConfiguration,
};
use clap::Parser;
use sc_service::DatabaseSource;
use std::{
fmt::Debug,
fs,
io::{self, Write},
};
#[derive(Debug, Clone, Parser)]
pub struct PurgeChainCmd {
#[arg(short = 'y')]
pub yes: bool,
#[allow(missing_docs)]
#[clap(flatten)]
pub shared_params: SharedParams,
#[allow(missing_docs)]
#[clap(flatten)]
pub database_params: DatabaseParams,
}
impl PurgeChainCmd {
pub fn run(&self, database_config: DatabaseSource) -> error::Result<()> {
let db_path = database_config.path().ok_or_else(|| {
error::Error::Input("Cannot purge custom database implementation".into())
})?;
if !self.yes {
print!("Are you sure to remove {:?}? [y/N]: ", &db_path);
io::stdout().flush().expect("failed to flush stdout");
let mut input = String::new();
io::stdin().read_line(&mut input)?;
let input = input.trim();
match input.chars().next() {
Some('y') | Some('Y') => {},
_ => {
println!("Aborted");
return Ok(())
},
}
}
match fs::remove_dir_all(&db_path) {
Ok(_) => {
println!("{:?} removed.", &db_path);
Ok(())
},
Err(ref err) if err.kind() == io::ErrorKind::NotFound => {
eprintln!("{:?} did not exist.", &db_path);
Ok(())
},
Err(err) => Result::Err(err.into()),
}
}
}
impl CliConfiguration for PurgeChainCmd {
fn shared_params(&self) -> &SharedParams {
&self.shared_params
}
fn database_params(&self) -> Option<&DatabaseParams> {
Some(&self.database_params)
}
}