db.rs

 1pub mod kvp;
 2pub mod workspace;
 3
 4use std::fs;
 5use std::ops::Deref;
 6use std::path::Path;
 7
 8use anyhow::Result;
 9use indoc::indoc;
10use kvp::KVP_MIGRATION;
11use sqlez::connection::Connection;
12use sqlez::thread_safe_connection::ThreadSafeConnection;
13use workspace::items::ITEM_MIGRATIONS;
14use workspace::pane::PANE_MIGRATIONS;
15
16pub use workspace::*;
17
18#[derive(Clone)]
19pub struct Db(ThreadSafeConnection);
20
21impl Deref for Db {
22    type Target = sqlez::connection::Connection;
23
24    fn deref(&self) -> &Self::Target {
25        &self.0.deref()
26    }
27}
28
29impl Db {
30    /// Open or create a database at the given directory path.
31    pub fn open(db_dir: &Path, channel: &'static str) -> Self {
32        // Use 0 for now. Will implement incrementing and clearing of old db files soon TM
33        let current_db_dir = db_dir.join(Path::new(&format!("0-{}", channel)));
34        fs::create_dir_all(&current_db_dir)
35            .expect("Should be able to create the database directory");
36        let db_path = current_db_dir.join(Path::new("db.sqlite"));
37
38        Db(initialize_connection(ThreadSafeConnection::new(
39            db_path.to_string_lossy().as_ref(),
40            true,
41        )))
42    }
43
44    /// Open a in memory database for testing and as a fallback.
45    pub fn open_in_memory(db_name: &str) -> Self {
46        Db(initialize_connection(ThreadSafeConnection::new(
47            db_name, false,
48        )))
49    }
50
51    pub fn persisting(&self) -> bool {
52        self.persistent()
53    }
54
55    pub fn write_to<P: AsRef<Path>>(&self, dest: P) -> Result<()> {
56        let destination = Connection::open_file(dest.as_ref().to_string_lossy().as_ref());
57        self.backup_main(&destination)
58    }
59}
60
61fn initialize_connection(conn: ThreadSafeConnection) -> ThreadSafeConnection {
62    conn.with_initialize_query(indoc! {"
63        PRAGMA journal_mode=WAL;
64        PRAGMA synchronous=NORMAL;
65        PRAGMA foreign_keys=TRUE;
66        PRAGMA case_sensitive_like=TRUE;
67        "})
68        .with_migrations(&[
69            KVP_MIGRATION,
70            WORKSPACES_MIGRATION,
71            PANE_MIGRATIONS,
72            ITEM_MIGRATIONS,
73        ])
74}