RUST 🚀🚀🚀🚀🚀🚀

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Cat /dev/Nulo 2023-04-23 21:12:29 -03:00
parent aaa5d81e96
commit 63ebf48da6
5 changed files with 480 additions and 0 deletions

3
.gitignore vendored
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@ -5,3 +5,6 @@ keywords-no-compressed.zip
*.sqlite3
*.sqlite3-shm
*.sqlite3-wal
rust/*.sqlite3
rust/*.sqlite3-shm
rust/*.sqlite3-wal

3
rust/.gitignore vendored Normal file
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target/
perf.data*
flamegraph.svg

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rust/Cargo.lock generated Normal file
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15
rust/Cargo.toml Normal file
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[package]
name = "rust"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
brotli = "3.3.4"
# rayon = "1.7.0"
rusqlite = { version = "0.29.0", features = ["bundled", "unlock_notify"] }
# smol-potat = { version = "1.1.2", features = ["auto"] }
# sqlite-zstd = "0.3.2"
walkdir = "2.3.3"
# zstd = "0.12.3"

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rust/src/main.rs Normal file
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use std::{
error::Error,
fs::{read, remove_file, File},
path::{Path, PathBuf},
sync::mpsc::{self, Receiver, Sender},
thread::{self, JoinHandle},
};
use brotli::enc::{backward_references::BrotliEncoderMode, BrotliEncoderParams};
use rusqlite::Connection;
use walkdir::WalkDir;
fn db_path() -> &'static str {
"./archiveee.sqlite3"
}
fn main() -> Result<(), Box<dyn Error>> {
_ = remove_file(db_path());
let conn = make_conn()?;
make_db_schema(&conn)?;
let input = Path::new("./input");
// let (dict, dict_id) = make_dict(conn, input)?;
// let mut enc = zstd::bulk::Compressor::new(5)?;
let paths = iterator(input).collect::<Vec<PathBuf>>();
let chunks = paths.chunks(paths.len() / 4);
println!("{}", chunks.len());
let (tx, rx): (Sender<Entry>, Receiver<Entry>) = mpsc::channel();
let threads = chunks
.map(|chunk| {
let chunkk = chunk.to_vec();
let ttx = tx.clone();
thread::spawn(move || {
let input = Path::new("./input");
let params = file_compress_params();
// let mut conn = make_conn().unwrap();
println!("thread");
// let trans = conn.transaction().unwrap();
// {
// let mut insert_stmt = trans
// .prepare_cached("insert into files(path, content, compressed) values(?, ?, ?)")
// .unwrap();
for path in chunkk {
compress_file(&path, input, &params, &ttx);
}
})
})
.collect::<Vec<JoinHandle<()>>>();
let collector = thread::spawn(|| {
let mut conn = make_conn().unwrap();
println!("thread");
let trans = conn.transaction().unwrap();
{
let mut insert_stmt = trans
.prepare_cached("insert into files(path, content, compressed) values(?, ?, ?)")
.unwrap();
for entry in rx {
insert_stmt.execute(entry).unwrap();
}
}
trans.commit().unwrap();
});
drop(tx);
collector.join().unwrap();
for thread in threads {
thread.join().unwrap();
}
// .map(|path| -> Option<()> {
// insert_file(path, input, params, insert_stmt);
// Some(())
// })
// .collect::<Vec<Option<()>>>();
// if iter.iter().any(|o| o.is_none()) {
// println!("Algo falló");
// }
// recurse(dict, conn)?;
println!("Hello, world!");
Ok(())
}
// fn insert_files(paths: &[PathBuf]) {
// let input = Path::new("./input");
// let params = file_compress_params();
// // let mut conn = make_conn().unwrap();
// println!("thread");
// // let trans = conn.transaction().unwrap();
// // {
// // let mut insert_stmt = trans
// // .prepare_cached("insert into files(path, content, compressed) values(?, ?, ?)")
// // .unwrap();
// for path in paths {
// compress_file(path, input, &params, tx);
// }
// // insert_stmt.execute((path_str, content, false)).unwrap();
// // }
// // trans.commit().unwrap();
// }
// fn insert_file(
// path: &Path,
// input: &Path,
// params: &BrotliEncoderParams,
// insert_stmt: &mut rusqlite::CachedStatement,
// ) {
// // let mut path_comp = zstd::bulk::Compressor::with_dictionary(0, &dict).unwrap();
// // println!("{:?}", path);
// // let path_compressed = path_comp
// // .compress(strip_input(&path, input).to_string_lossy().as_bytes())
// // .unwrap();
// let path_strip = strip_input(&path, input);
// let path_str = path_strip.to_string_lossy();
// if compressable(path) {
// let mut content_compressed = Vec::new();
// let mut file = File::open(path).unwrap();
// brotli::BrotliCompress(&mut file, &mut content_compressed, &params).unwrap();
// // let content_compressed = enc.compress(&content)?;
// insert_stmt
// .execute((path_str, content_compressed, true))
// .unwrap();
// } else {
// let content = read(path.clone()).unwrap();
// insert_stmt.execute((path_str, content, false)).unwrap();
// }
// }
fn make_conn() -> Result<Connection, Box<dyn Error>> {
let conn = Connection::open(db_path())?;
conn.pragma_update(None, "journal_mode", "OFF")?;
conn.pragma_update(None, "synchronous", 0)?;
Ok(conn)
}
type Entry = (String, Vec<u8>, bool);
fn compress_file(path: &Path, input: &Path, params: &BrotliEncoderParams, tx: &Sender<Entry>) {
let path_strip = strip_input(&path, input);
let path_str = path_strip.to_string_lossy();
if compressable(path) {
let mut content_compressed = Vec::new();
let mut file = File::open(path).unwrap();
brotli::BrotliCompress(&mut file, &mut content_compressed, &params).unwrap();
// let content_compressed = enc.compress(&content)?;
// insert_stmt
// .execute((path_str, content_compressed, true))
// .unwrap();
tx.send((path_str.to_string(), content_compressed, true))
.unwrap();
} else {
let content = read(path.clone()).unwrap();
// insert_stmt.execute((path_str, content, false)).unwrap();
tx.send((path_str.to_string(), content, false)).unwrap();
}
}
fn make_db_schema(conn: &Connection) -> Result<(), Box<dyn Error>> {
conn.execute(
"create table files(path text, content blob, compressed bool)",
[],
)?;
// conn.execute(
// "create table files(path blob, path_dictionary_id integer, content blob, compressed bool)",
// [],
// )?;
// conn.execute("create table path_dictionaries(dictionary blob)", [])?;
conn.execute("create unique index path on files(path)", [])?;
Ok(())
}
// fn make_dict(conn: Connection, input: &Path) -> Result<(Vec<u8>, i64), Box<dyn Error>> {
// let mut insert_dict_stmt =
// conn.prepare_cached("insert into path_dictionaries(dictionary) values(?1)")?;
// let mut all_paths = Vec::new();
// let iter = iterator(input);
// for entry in iter {
// all_paths.push(entry.to_string_lossy().as_bytes().to_vec());
// }
// println!("path n {}", all_paths.len());
// let dict = zstd::dict::from_samples(&all_paths, 999999)?;
// println!("dict");
// let dict_id = insert_dict_stmt.insert(params![&dict])?;
// Ok((dict, dict_id))
// }
fn file_compress_params() -> BrotliEncoderParams {
let mut params = BrotliEncoderParams::default();
params.quality = 0;
params.mode = BrotliEncoderMode::BROTLI_MODE_TEXT;
params
}
fn iterator(input: &Path) -> impl Iterator<Item = PathBuf> {
WalkDir::new(input)
.into_iter()
.filter_map(|e| e.ok())
.filter(|e| e.file_type().is_file())
.map(|e| e.path().to_owned())
.filter(|e| !already_compressed(e))
}
fn strip_input(path: &Path, input: &Path) -> PathBuf {
path.strip_prefix(input).unwrap().to_owned()
}
fn already_compressed(path: &PathBuf) -> bool {
let p = path.to_string_lossy();
p.ends_with(".br") || p.ends_with(".gz")
}
fn compressable(path: &Path) -> bool {
let p = path.to_string_lossy();
p.ends_with(".html")
|| p.ends_with(".css")
|| p.ends_with(".js")
|| p.ends_with(".json")
|| p.ends_with(".svg")
}