Option to open the default datase

lib/src/database.rs

@@ -1,16 +1,49 @@
+/*
+  TIN - Time Tracking Application
+  Copyright (C) 2021  Julio Biason
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU Affero General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program 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 Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use std::path::Path;
+
+use directories::ProjectDirs;
 use sqlx::sqlite::Sqlite;
 use sqlx::sqlite::SqliteConnectOptions;
 use sqlx::sqlite::SqlitePoolOptions;
 use sqlx::Pool;
 
 async fn connect() -> Result<Pool<Sqlite>, sqlx::Error> {
+    connect_with(&default_filename()).await
+}
+
+async fn connect_with(filename: &Path) -> Result<Pool<Sqlite>, sqlx::Error> {
     let pool = SqlitePoolOptions::new()
         .connect_with(
             SqliteConnectOptions::new()
-                .filename("testing.sqlite")
+                .filename(filename)
                 .create_if_missing(true),
         )
         .await?;
-    sqlx::migrate("migrations").run(&pool).await?;
+    sqlx::migrate!("./migrations").run(&pool).await?;
     Ok(pool)
 }
+
+/// Return the default filename for the database.
+fn default_filename() -> Path {
+    match ProjectDirs::from("me", "JulioBiason", "tin.sqlite3") {
+        Some(project_dir) => Path(project_dir.config_dir()),
+        None => Path("tin.sqlite3"),
+    }
+}