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Make --file optional for generate-node-key (#7043)

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This pr makes the `--file` argument optional to `generate-node-key`.
If the argument is not given, the secret node key will be printed to
`stdout`. The public node key will always be printed to `stderr`.
This commit is contained in:
Bastian Köcher
2020-09-08 10:32:37 +02:00
committed by GitHub
parent 186fa587cf
commit ae0f7e58b0
3 changed files with 16 additions and 9 deletions
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substrate/client/cli/src/commands/generate_node_key.rs
+11 -6
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@@ -26,26 +26,31 @@ use libp2p::identity::{ed25519 as libp2p_ed25519, PublicKey};
#[derive(Debug, StructOpt)]
#[structopt(
name = "generate-node-key",
about = "Generate a random node libp2p key, save it to file and print its peer ID"
about = "Generate a random node libp2p key, save it to \
file or print it to stdout and print its peer ID to stderr"
)]
pub struct GenerateNodeKeyCmd {
/// Name of file to save secret key to.
///
/// If not given, the secret key is printed to stdout.
#[structopt(long)]
file: PathBuf,
file: Option<PathBuf>,
}
impl GenerateNodeKeyCmd {
/// Run the command
pub fn run(&self) -> Result<(), Error> {
let file = &self.file;
let keypair = libp2p_ed25519::Keypair::generate();
let secret = keypair.secret();
let peer_id = PublicKey::Ed25519(keypair.public()).into_peer_id();
let secret_hex = hex::encode(secret.as_ref());
fs::write(file, hex::encode(secret.as_ref()))?;
match &self.file {
Some(file) => fs::write(file, secret_hex)?,
None => print!("{}", secret_hex),
}
println!("{}", peer_id);
eprintln!("{}", peer_id);
Ok(())
}