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Proof of concept

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Jake Howard 2022-11-25 16:15:55 +00:00
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2
.gitignore vendored Normal file
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/target
backup.db

213
Cargo.lock generated Normal file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
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Cargo.toml Normal file
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[package]
name = "sqlite-online-backup"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
rusqlite = { version="0.28.0", features=["backup"]}
tempfile = "3.3.0"

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src/main.rs Normal file
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use rusqlite::backup::{Backup, Progress};
use rusqlite::Connection;
use std::env;
use std::fs::copy;
use std::path::Path;
use std::time::Duration;
use tempfile::NamedTempFile;
fn progress(progress: Progress) {
println!("{:?}", progress)
}
fn main() {
let args = env::args().nth(1).expect("Requires 1 argument");
let src_file = Path::new(Path::new(&args));
let tmpfile = NamedTempFile::new().unwrap();
let tmpfile_path = tmpfile.path();
println!("{}", src_file.metadata().unwrap().len() / 1000);
println!("{}", tmpfile_path.display());
let src_db = Connection::open(src_file).unwrap();
let mut dest_db = Connection::open(tmpfile_path).unwrap();
{
let backup = Backup::new(&src_db, &mut dest_db).unwrap();
backup
.run_to_completion(100, Duration::from_millis(100), Some(progress))
.unwrap();
}
src_db.close().unwrap();
dest_db.close().unwrap();
copy(tmpfile_path, Path::new("./backup.db")).unwrap();
}