lighthouse/account_manager/src/common.rs
Paul Hauner 8e5c20b6d1 Update for clippy 1.50 (#2193)
## Issue Addressed

NA

## Proposed Changes

Rust 1.50 has landed 🎉

The shiny new `clippy` peers down upon us mere mortals with disgust. Brutish peasants wrapping our `usize`s in superfluous `Option`s... tsk tsk.

I've performed the goat sacrifice and corrected our evil ways in this PR. Tonight we shall pray that Github Actions bestows the almighty green tick upon us.

## Additional Info

NA


Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: Michael Sproul <michael@sigmaprime.io>
2021-02-15 00:09:12 +00:00

68 lines
2.3 KiB
Rust

use account_utils::PlainText;
use account_utils::{read_input_from_user, strip_off_newlines};
use eth2_wallet::bip39::{Language, Mnemonic};
use std::fs;
use std::path::PathBuf;
use std::str::from_utf8;
use std::thread::sleep;
use std::time::Duration;
pub const MNEMONIC_PROMPT: &str = "Enter the mnemonic phrase:";
pub const WALLET_NAME_PROMPT: &str = "Enter wallet name:";
pub fn read_mnemonic_from_cli(
mnemonic_path: Option<PathBuf>,
stdin_inputs: bool,
) -> Result<Mnemonic, String> {
let mnemonic = match mnemonic_path {
Some(path) => fs::read(&path)
.map_err(|e| format!("Unable to read {:?}: {:?}", path, e))
.and_then(|bytes| {
let bytes_no_newlines: PlainText = strip_off_newlines(bytes).into();
let phrase = from_utf8(&bytes_no_newlines.as_ref())
.map_err(|e| format!("Unable to derive mnemonic: {:?}", e))?;
Mnemonic::from_phrase(phrase, Language::English).map_err(|e| {
format!(
"Unable to derive mnemonic from string {:?}: {:?}",
phrase, e
)
})
})?,
None => loop {
eprintln!();
eprintln!("{}", MNEMONIC_PROMPT);
let mnemonic = read_input_from_user(stdin_inputs)?;
match Mnemonic::from_phrase(mnemonic.as_str(), Language::English) {
Ok(mnemonic_m) => {
eprintln!("Valid mnemonic provided.");
eprintln!();
sleep(Duration::from_secs(1));
break mnemonic_m;
}
Err(_) => {
eprintln!("Invalid mnemonic");
}
}
},
};
Ok(mnemonic)
}
/// Reads in a wallet name from the user. If the `--wallet-name` flag is provided, use it. Otherwise
/// read from an interactive prompt using tty unless the `--stdin-inputs` flag is provided.
pub fn read_wallet_name_from_cli(
wallet_name: Option<String>,
stdin_inputs: bool,
) -> Result<String, String> {
match wallet_name {
Some(name) => Ok(name),
None => {
eprintln!("{}", WALLET_NAME_PROMPT);
read_input_from_user(stdin_inputs)
}
}
}