74 lines
1.8 KiB
Rust
74 lines
1.8 KiB
Rust
use std::path::PathBuf;
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use garage_db::*;
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use clap::Parser;
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/// K2V command line interface
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#[derive(Parser, Debug)]
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#[clap(author, version, about, long_about = None)]
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struct Args {
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/// Input DB path
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#[clap(short = 'i')]
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input_path: PathBuf,
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/// Input DB engine
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#[clap(short = 'a')]
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input_engine: String,
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/// Output DB path
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#[clap(short = 'o')]
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output_path: PathBuf,
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/// Output DB engine
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#[clap(short = 'b')]
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output_engine: String,
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}
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fn main() {
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let args = Args::parse();
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pretty_env_logger::init();
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match do_conversion(args) {
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Ok(()) => println!("Success!"),
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Err(e) => eprintln!("Error: {}", e),
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}
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}
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fn do_conversion(args: Args) -> Result<()> {
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let input = open_db(args.input_path, args.input_engine)?;
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let output = open_db(args.output_path, args.output_engine)?;
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output.import(&input)?;
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Ok(())
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}
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fn open_db(path: PathBuf, engine: String) -> Result<Db> {
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match engine.as_str() {
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"sled" => {
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let db = sled_adapter::sled::Config::default().path(&path).open()?;
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Ok(sled_adapter::SledDb::init(db))
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}
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"sqlite" | "sqlite3" | "rusqlite" => {
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let db = sqlite_adapter::rusqlite::Connection::open(&path)?;
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db.pragma_update(None, "journal_mode", &"WAL")?;
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db.pragma_update(None, "synchronous", &"NORMAL")?;
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Ok(sqlite_adapter::SqliteDb::init(db))
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}
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"lmdb" | "heed" => {
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std::fs::create_dir_all(&path).map_err(|e| {
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Error(format!("Unable to create LMDB data directory: {}", e).into())
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})?;
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let map_size = lmdb_adapter::recommended_map_size();
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let mut env_builder = lmdb_adapter::heed::EnvOpenOptions::new();
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env_builder.max_dbs(100);
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env_builder.map_size(map_size);
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unsafe {
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env_builder.flag(heed::flags::Flags::MdbNoMetaSync);
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}
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let db = env_builder.open(&path)?;
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Ok(lmdb_adapter::LmdbDb::init(db))
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}
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e => Err(Error(format!("Invalid DB engine: {}", e).into())),
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}
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}
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