Hash working, DB creation not

This commit is contained in:
Jeremy Karst 2024-06-10 12:45:33 -04:00
commit dcfa0f8817
5 changed files with 817 additions and 0 deletions

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12
Cargo.toml Normal file
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@ -0,0 +1,12 @@
[package]
name = "quiksearch"
version = "0.1.0"
edition = "2021"
[dependencies]
hex-literal = "0.4.1"
rayon = "1.10.0"
rusqlite = { version = "0.31.0", features = ["bundled"] }
sha2 = "0.10.8"
tqdm = "0.7.0"
walkdir = "2.5.0"

101
src/main.rs Normal file
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// use std::borrow::Borrow;
use std::ffi::OsString;
use std::time::Instant;
// use std::path::Path;
use std::fs::File;
use std::io::{Read, Seek, SeekFrom};
use std::time::UNIX_EPOCH;
use sha2::{Sha256, Digest};
use walkdir::WalkDir;
use tqdm;
use rusqlite::{params, Connection};
const HASHLEN:usize = 1024*8;
// struct Finfo {
// name: String,
// path: String,
// size: u64,
// modified: u64,
// hash: [u8; 64]
// }
fn get_file_hash(size: u64, path: OsString) -> Result<Vec<u8>, std::io::Error> {
let mut hasher = Sha256::new();
let mut f = File::open(path)?;
let mut data = [0u8; 8+2*HASHLEN];
data[..8].copy_from_slice(&size.to_le_bytes());
if size > HASHLEN as u64 {
let mut file_start_block = [0u8; HASHLEN];
f.read_exact(&mut file_start_block)?;
for i in 0..HASHLEN {
data[8+i] = file_start_block[i];
}
f.seek(SeekFrom::End(0 - HASHLEN as i64))?;
let mut file_end_block = [0u8; HASHLEN];
f.read_exact(&mut file_end_block)?;
for i in 0..HASHLEN {
let i: usize = i;
data[8+i+HASHLEN] = file_end_block[i];
}
} else if size > 0 {
let mut file_block = Vec::new();
f.read_to_end(&mut file_block)?;
for i in 0..(size as usize) {
let i: usize = i;
data[8+i] = file_block[i];
}
}
hasher.update(data);
Ok(hasher.finalize().to_vec())
}
fn main() {
let path: &str = "G:\\datasets\\preprocessed_ch_100";
let db_path: &str = "GDrive.db";
let mut conn = Connection::open(db_path).unwrap();
// conn.execute_batch(
// "PRAGMA journal_mode = OFF;
// PRAGMA synchronous = 0;
// PRAGMA cache_size = 1000000;
// PRAGMA locking_mode = EXCLUSIVE;
// PRAGMA temp_store = MEMORY;",
// )
// .expect("PRAGMA");
conn.execute("CREATE TABLE IF NOT EXISTS files (
name TEXT,
path TEXT,
size INTEGER,
moddate INTEGER,
hash BLOB)", ()).unwrap();
let tx = conn.transaction().unwrap();
let st1 = "INSERT INTO files VALUES (?1,?2,?3,?4,?5)";
let mut stmt = tx.prepare(st1).unwrap();
let mut filecount: i64 = 0;
let start_time = Instant::now();
for entry in tqdm::tqdm(WalkDir::new(path).into_iter().filter_map(|e| e.ok())) {
let meta = entry.metadata().unwrap();
if !meta.is_dir() {
let fname = entry.path().file_name().unwrap().to_os_string();
let fpath = entry.path().canonicalize().unwrap().into_os_string();
let fsize = meta.len();
let fmodified = meta.modified().unwrap().duration_since(UNIX_EPOCH).unwrap().as_secs();
let fhash = get_file_hash(fsize, fpath.clone()).unwrap();
filecount += 1;
stmt.execute(params![fname.to_str(), fpath.to_str(), fsize, fmodified, fhash]).unwrap();
if filecount >= 100 {
break;
}
}
}
let elapsed_time = start_time.elapsed();
println!("{} files enumerated in {} seconds", filecount, elapsed_time.as_secs());
println!("{} files per second", filecount as f32 / elapsed_time.as_secs() as f32);
}