1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
use std::path::PathBuf;
use structopt::StructOpt;
use garage_db::*;
/// K2V command line interface
#[derive(StructOpt, Debug)]
pub struct ConvertDbOpt {
/// Input database path (not the same as metadata_dir, see
/// https://garagehq.deuxfleurs.fr/documentation/reference-manual/configuration/#db-engine-since-v0-8-0)
#[structopt(short = "i")]
input_path: PathBuf,
/// Input database engine (sled, lmdb or sqlite; limited by db engines
/// enabled in this build)
#[structopt(short = "a")]
input_engine: Engine,
/// Output database path
#[structopt(short = "o")]
output_path: PathBuf,
/// Output database engine
#[structopt(short = "b")]
output_engine: Engine,
#[structopt(flatten)]
output_open: OpenDbOpt,
}
/// Open database config overrides
#[derive(StructOpt, Debug, Default)]
pub struct OpenDbOpt {
#[cfg(feature = "lmdb")]
#[structopt(flatten)]
lmdb: OpenLmdbOpt,
}
/// Output LMDB database config overrides
#[cfg(feature = "lmdb")]
#[derive(StructOpt, Debug, Default)]
pub struct OpenLmdbOpt {
/// Output LMDB map size override
/// (supported suffixes: B, KiB, MiB, GiB, TiB, PiB)
#[cfg(feature = "lmdb")]
#[structopt(long = "lmdb-map-size", name = "bytes", display_order = 1_000)]
map_size: Option<bytesize::ByteSize>,
}
pub(crate) fn do_conversion(args: ConvertDbOpt) -> Result<()> {
if args.input_engine == args.output_engine {
return Err(Error("input and output database engine must differ".into()));
}
let input = open_db(args.input_path, args.input_engine, &args.output_open)?;
let output = open_db(args.output_path, args.output_engine, &args.output_open)?;
output.import(&input)?;
Ok(())
}
fn open_db(path: PathBuf, engine: Engine, open: &OpenDbOpt) -> Result<Db> {
match engine {
#[cfg(feature = "sled")]
Engine::Sled => {
let db = sled_adapter::sled::Config::default().path(&path).open()?;
Ok(sled_adapter::SledDb::init(db))
}
#[cfg(feature = "sqlite")]
Engine::Sqlite => {
let db = sqlite_adapter::rusqlite::Connection::open(&path)?;
db.pragma_update(None, "journal_mode", &"WAL")?;
db.pragma_update(None, "synchronous", &"NORMAL")?;
Ok(sqlite_adapter::SqliteDb::init(db))
}
#[cfg(feature = "lmdb")]
Engine::Lmdb => {
std::fs::create_dir_all(&path).map_err(|e| {
Error(format!("Unable to create LMDB data directory: {}", e).into())
})?;
let map_size = match open.lmdb.map_size {
Some(c) => c.as_u64() as usize,
None => lmdb_adapter::recommended_map_size(),
};
let mut env_builder = lmdb_adapter::heed::EnvOpenOptions::new();
env_builder.max_dbs(100);
env_builder.map_size(map_size);
unsafe {
env_builder.flag(lmdb_adapter::heed::flags::Flags::MdbNoMetaSync);
}
let db = env_builder.open(&path)?;
Ok(lmdb_adapter::LmdbDb::init(db))
}
}
}
|
