meli/melib/src/sqlite3.rs
2020-05-30 15:37:12 +03:00

69 lines
2.2 KiB
Rust

/*
* meli - melib
*
* Copyright 2020 Manos Pitsidianakis
*
* This file is part of meli.
*
* meli is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* meli is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with meli. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::{error::*, logging::log};
pub use rusqlite::{self, params, Connection};
use std::path::PathBuf;
pub fn db_path(name: &str) -> Result<PathBuf> {
let data_dir =
xdg::BaseDirectories::with_prefix("meli").map_err(|e| MeliError::new(e.to_string()))?;
Ok(data_dir
.place_data_file(name)
.map_err(|e| MeliError::new(e.to_string()))?)
}
pub fn open_db(db_path: PathBuf) -> Result<Connection> {
if !db_path.exists() {
return Err(MeliError::new("Database doesn't exist"));
}
Connection::open(&db_path).map_err(|e| MeliError::new(e.to_string()))
}
pub fn open_or_create_db(name: &str, init_script: Option<&str>) -> Result<Connection> {
let db_path = db_path(name)?;
let mut set_mode = false;
if !db_path.exists() {
log(
format!("Creating {} database in {}", name, db_path.display()),
crate::INFO,
);
set_mode = true;
}
let conn = Connection::open(&db_path).map_err(|e| MeliError::new(e.to_string()))?;
if set_mode {
use std::os::unix::fs::PermissionsExt;
let file = std::fs::File::open(&db_path)?;
let metadata = file.metadata()?;
let mut permissions = metadata.permissions();
permissions.set_mode(0o600); // Read/write for owner only.
file.set_permissions(permissions)?;
}
if let Some(s) = init_script {
conn.execute_batch(s)
.map_err(|e| MeliError::new(e.to_string()))?;
}
Ok(conn)
}