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https://github.com/sigp/lighthouse.git
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d8cda2d86e
## Issue Addressed NA ## Proposed Changes Fixes new clippy lints in the whole project (mainly [manual_strip](https://rust-lang.github.io/rust-clippy/master/index.html#manual_strip) and [unnecessary_lazy_evaluations](https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_lazy_evaluations)). Furthermore, removes `to_string()` calls on literals when used with the `?`-operator.
41 lines
1.2 KiB
Rust
41 lines
1.2 KiB
Rust
use clap::ArgMatches;
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use ssz::{Decode, Encode};
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use std::fs::File;
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use std::io::{Read, Write};
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use std::path::PathBuf;
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use types::{BeaconState, EthSpec};
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pub fn run<T: EthSpec>(matches: &ArgMatches) -> Result<(), String> {
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let path = matches
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.value_of("ssz-state")
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.ok_or("ssz-state not specified")?
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.parse::<PathBuf>()
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.map_err(|e| format!("Unable to parse ssz-state: {}", e))?;
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let genesis_time = matches
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.value_of("genesis-time")
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.ok_or("genesis-time not specified")?
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.parse::<u64>()
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.map_err(|e| format!("Unable to parse genesis-time: {}", e))?;
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let mut state: BeaconState<T> = {
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let mut file = File::open(&path).map_err(|e| format!("Unable to open file: {}", e))?;
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let mut ssz = vec![];
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file.read_to_end(&mut ssz)
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.map_err(|e| format!("Unable to read file: {}", e))?;
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BeaconState::from_ssz_bytes(&ssz).map_err(|e| format!("Unable to decode SSZ: {:?}", e))?
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};
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state.genesis_time = genesis_time;
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let mut file = File::create(path).map_err(|e| format!("Unable to create file: {}", e))?;
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file.write_all(&state.as_ssz_bytes())
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.map_err(|e| format!("Unable to write to file: {}", e))?;
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Ok(())
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}
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