Jędrzej Stuczyński
44 lines
1.1 KiB
Rust
44 lines
1.1 KiB
Rust
// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
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// SPDX-License-Identifier: Apache-2.0
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use crate::error::NymvisorError;
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use sha2::Digest;
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use std::fs::File;
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use std::io::{BufReader, Read};
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use std::path::Path;
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use std::{fs, io};
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use tracing::trace;
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pub(crate) fn init_path<P: AsRef<Path>>(path: P) -> Result<(), NymvisorError> {
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let path = path.as_ref();
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trace!("initialising {}", path.display());
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fs::create_dir_all(path).map_err(|source| NymvisorError::PathInitFailure {
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path: path.to_path_buf(),
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source,
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})
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}
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pub fn calculate_file_checksum<D: Digest, P: AsRef<Path>>(
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filepath: P,
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) -> Result<Vec<u8>, io::Error> {
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let file = File::open(filepath)?;
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let mut reader = BufReader::new(file);
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let mut hasher = D::new();
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let mut buf = vec![0; 4096];
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loop {
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let n = reader.read(&mut buf)?;
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if n == 0 {
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break;
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}
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hasher.update(&buf[..n])
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}
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Ok(hasher.finalize().to_vec())
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}
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pub fn to_hex_string<T: AsRef<[u8]>>(input: T) -> String {
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hex::encode(input)
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}
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