vlsd 0.14.0

A Lightning signer that connects to the node using a gRPC protocol
Documentation 
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use lightning_signer::util::crypto_utils::generate_seed;
use std::{
    fs,
    path::{Path, PathBuf},
};
use tracing::warn;
use vls_util::util::read_integration_test_seed;

/// Read integration test seed, and generate/persist it if it's missing
pub fn integration_test_seed_or_generate(seeddir: Option<PathBuf>) -> [u8; 32] {
    let seeddir = seeddir.unwrap_or(PathBuf::from("."));
    match read_integration_test_seed(&seeddir) {
        None => {
            let seed = generate_seed();
            write_integration_test_seed(&seeddir, &seed);
            seed
        }
        Some(seed) => seed,
    }
}

fn write_integration_test_seed<P: AsRef<Path>>(datadir: P, seed: &[u8; 32]) {
    let path = PathBuf::from(datadir.as_ref()).join("hsm_secret");
    warn!("writing integration hsm_secret to {:?}", path);
    fs::write(path, seed).expect("writing hsm_secret");
}