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use std::path::PathBuf;
use garage_db::*;
use clap::Parser;
/// K2V command line interface
#[derive(Parser, Debug)]
#[clap(author, version, about, long_about = None)]
struct Args {
/// Input DB path
#[clap(short = 'i')]
input_path: PathBuf,
/// Input DB engine
#[clap(short = 'a')]
input_engine: String,
/// Output DB path
#[clap(short = 'o')]
output_path: PathBuf,
/// Output DB engine
#[clap(short = 'b')]
output_engine: String,
}
fn main() {
let args = Args::parse();
pretty_env_logger::init();
match do_conversion(args) {
Ok(()) => println!("Success!"),
Err(e) => eprintln!("Error: {}", e),
}
}
fn do_conversion(args: Args) -> Result<()> {
let input = open_db(args.input_path, args.input_engine)?;
let output = open_db(args.output_path, args.output_engine)?;
output.import(&input)?;
Ok(())
}
fn open_db(path: PathBuf, engine: String) -> Result<Db> {
match engine.as_str() {
"sled" => {
let db = sled_adapter::sled::Config::default().path(&path).open()?;
Ok(sled_adapter::SledDb::init(db))
}
"sqlite" | "sqlite3" | "rusqlite" => {
let db = sqlite_adapter::rusqlite::Connection::open(&path)?;
Ok(sqlite_adapter::SqliteDb::init(db))
}
"lmdb" | "heed" => {
std::fs::create_dir_all(&path).map_err(|e| {
Error(format!("Unable to create LMDB data directory: {}", e).into())
})?;
let map_size = if u32::MAX as usize == usize::MAX {
eprintln!(
"LMDB is not recommended on 32-bit systems, database size will be limited"
);
1usize << 30 // 1GB for 32-bit systems
} else {
1usize << 40 // 1TB for 64-bit systems
};
let db = lmdb_adapter::heed::EnvOpenOptions::new()
.max_dbs(100)
.map_size(map_size)
.open(&path)
.unwrap();
Ok(lmdb_adapter::LmdbDb::init(db))
}
e => Err(Error(format!("Invalid DB engine: {}", e).into())),
}
}
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