mirror of
https://github.com/meilisearch/meilisearch.git
synced 2024-12-12 14:36:01 +08:00
86 lines
2.5 KiB
Rust
86 lines
2.5 KiB
Rust
use std::path::PathBuf;
|
|
|
|
use byte_unit::Byte;
|
|
use heed::{CompactionOption, Env, EnvOpenOptions};
|
|
use structopt::StructOpt;
|
|
use Command::*;
|
|
|
|
#[cfg(target_os = "linux")]
|
|
#[global_allocator]
|
|
static ALLOC: jemallocator::Jemalloc = jemallocator::Jemalloc;
|
|
|
|
#[derive(Debug, StructOpt)]
|
|
/// Some helpers commands for milli.
|
|
pub struct Opt {
|
|
/// The database path where the database is located.
|
|
/// It is created if it doesn't already exist.
|
|
#[structopt(long = "db", parse(from_os_str))]
|
|
database: PathBuf,
|
|
|
|
/// The maximum size the database can take on disk. It is recommended to specify
|
|
/// the whole disk space (value must be a multiple of a page size).
|
|
#[structopt(long = "db-size", default_value = "100 GiB")]
|
|
database_size: Byte,
|
|
|
|
/// Verbose mode (-v, -vv, -vvv, etc.)
|
|
#[structopt(short, long, parse(from_occurrences))]
|
|
verbose: usize,
|
|
|
|
#[structopt(subcommand)]
|
|
command: Command,
|
|
}
|
|
|
|
#[derive(Debug, StructOpt)]
|
|
enum Command {
|
|
/// Outputs the main LMDB database to stdout.
|
|
CopyMainDatabase {
|
|
/// Wether to enable or not the compaction of the database.
|
|
#[structopt(long, short = "c")]
|
|
enable_compaction: bool,
|
|
},
|
|
}
|
|
|
|
fn main() -> anyhow::Result<()> {
|
|
let opt = Opt::from_args();
|
|
|
|
stderrlog::new()
|
|
.verbosity(opt.verbose)
|
|
.show_level(false)
|
|
.timestamp(stderrlog::Timestamp::Off)
|
|
.init()?;
|
|
|
|
let mut options = EnvOpenOptions::new();
|
|
options.map_size(opt.database_size.get_bytes() as usize);
|
|
|
|
// Return an error if the database does not exist.
|
|
if !opt.database.exists() {
|
|
anyhow::bail!("The database ({}) does not exist.", opt.database.display());
|
|
}
|
|
|
|
let env = options.open(opt.database)?;
|
|
|
|
match opt.command {
|
|
CopyMainDatabase { enable_compaction } => {
|
|
use CompactionOption::*;
|
|
let compaction = if enable_compaction { Enabled } else { Disabled };
|
|
copy_main_database_to_stdout(env, compaction)
|
|
}
|
|
}
|
|
}
|
|
|
|
#[cfg(target_family = "unix")]
|
|
fn copy_main_database_to_stdout(env: Env, compaction: CompactionOption) -> anyhow::Result<()> {
|
|
use std::os::unix::io::AsRawFd;
|
|
|
|
let stdout = std::io::stdout().as_raw_fd();
|
|
unsafe { env.copy_to_fd(stdout, compaction).map_err(Into::into) }
|
|
}
|
|
|
|
#[cfg(target_family = "windows")]
|
|
fn copy_main_database_to_stdout(env: Env, compaction: CompactionOption) -> anyhow::Result<()> {
|
|
use std::os::windows::io::AsRawHandle;
|
|
|
|
let stdout = std::io::stdout().as_raw_handle();
|
|
unsafe { env.copy_to_fd(stdout, compaction).map_err(Into::into) }
|
|
}
|