db.rs

 1pub mod kvp;
 2mod migrations;
 3pub mod workspace;
 4
 5use std::fs;
 6use std::ops::Deref;
 7use std::path::Path;
 8
 9use anyhow::Result;
10use indoc::indoc;
11use kvp::KVP_MIGRATION;
12use sqlez::connection::Connection;
13use sqlez::thread_safe_connection::ThreadSafeConnection;
14
15use workspace::pane::PANE_MIGRATIONS;
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(
39            ThreadSafeConnection::new(db_path.to_string_lossy().as_ref(), true)
40                .with_initialize_query(indoc! {"
41                    PRAGMA journal_mode=WAL;
42                    PRAGMA synchronous=NORMAL;
43                    PRAGMA foreign_keys=TRUE;
44                    PRAGMA case_sensitive_like=TRUE;
45                "})
46                .with_migrations(&[KVP_MIGRATION, WORKSPACES_MIGRATION, PANE_MIGRATIONS]),
47        )
48    }
49
50    pub fn persisting(&self) -> bool {
51        self.persistent()
52    }
53
54    /// Open a in memory database for testing and as a fallback.
55    pub fn open_in_memory(db_name: &str) -> Self {
56        Db(ThreadSafeConnection::new(db_name, false)
57            .with_initialize_query(indoc! {"
58                    PRAGMA journal_mode=WAL;
59                    PRAGMA synchronous=NORMAL;
60                    PRAGMA foreign_keys=TRUE;
61                    PRAGMA case_sensitive_like=TRUE;
62                    "})
63            .with_migrations(&[KVP_MIGRATION, WORKSPACES_MIGRATION, PANE_MIGRATIONS]))
64    }
65
66    pub fn write_to<P: AsRef<Path>>(&self, dest: P) -> Result<()> {
67        let destination = Connection::open_file(dest.as_ref().to_string_lossy().as_ref());
68        self.backup_main(&destination)
69    }
70}