Switch to Postgres (#39)

* WIP Switch to Postgres

* feat(postgres): more work on porting to postgres, now compiles

* feat(docker-compose): Changed the docker-compose.yml file to use postgres.

* Update docker, documentation, gh actions...

* Remove bson dependency

* Remove bson import

* feat: move mock filehost to trait rather than cargo feature

* feat(postgres): transactions for mod creation, multipart refactor

* fix: Add Cargo.lock so that sqlx functions

* Update sqlx offline build data

* fix: Use SQLX_OFFLINE to force sqlx into offline mode for CI

* Default release channels

* feat(postgres): refactor database models to fit postgres models

* fix: Fix sqlx prepare, fix double allocation in indexing

* Add dockerfile (#40)

Co-authored-by: Charalampos Fanoulis <charalampos.fanoulis@gmail.com>

Co-authored-by: Aeledfyr <aeledfyr@gmail.com>
Co-authored-by: redblueflame <contact@redblueflame.com>
Co-authored-by: Jai A <jai.a@tuta.io>
Co-authored-by: Valentin Ricard <redblueflame1@gmail.Com>
Co-authored-by: Charalampos Fanoulis <charalampos.fanoulis@gmail.com>

src/database/postgres_database.rs

@@ -0,0 +1,14 @@
+use log::info;
+use sqlx::postgres::{PgPool, PgPoolOptions};
+
+pub async fn connect() -> Result<PgPool, sqlx::Error> {
+    info!("Initializing database connection");
+
+    let database_url = dotenv::var("DATABASE_URL").expect("`DATABASE_URL` not in .env");
+    let pool = PgPoolOptions::new()
+        .max_connections(20)
+        .connect(&database_url)
+        .await?;
+
+    Ok(pool)
+}