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Julius 2020-02-29 22:40:32 +01:00
commit b0334e9e65
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2
.gitignore vendored Normal file
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/target
/.idea

184
Cargo.lock generated Normal file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
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14
Cargo.toml Normal file
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[package]
name = "summer"
version = "0.1.0"
authors = ["Julius de Jeu <julius@voidcorp.nl>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
sha3 = "0.8.2"
path-slash = "0.1.1"
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"
lazy_static = "1.4.0"

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src/main.rs Normal file
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use std::{fs, io};
use std::collections::HashMap;
use std::fs::{DirEntry, File};
use std::io::Read;
use std::path::Path;
use path_slash::PathExt;
use sha3::Digest;
fn main() {
let r = visit_dirs(Path::new("."), &create_hash).unwrap();
let f = File::create("sums.json").unwrap();
serde_json::to_writer_pretty(f, &r).unwrap();
}
fn create_hash(dir: &DirEntry) -> String {
let mut sha = sha3::Sha3_256::default();
let mut f = File::open(dir.path()).unwrap();
let mut b = Vec::new();
f.read_to_end(&mut b).unwrap();
sha.input(&b);
format!("{:x}", sha.result())
}
fn visit_dirs(dir: &Path, cb: &dyn Fn(&DirEntry) -> String) -> io::Result<HashMap<String, String>> {
let mut hm = HashMap::new();
if dir.is_dir() {
for entry in fs::read_dir(dir)? {
let entry = entry?;
let path = entry.path();
if path.is_dir() {
let v = visit_dirs(&path, cb)?;
for (k, v) in v {
hm.insert(k, v);
}
} else {
let k = entry.path().to_slash_lossy();
let v = cb(&entry);
hm.insert(k, v);
}
}
}
Ok(hm)
}