feat: show admin UI warning for SQLite on networked filesystem (#1713)

Co-authored-by: Elias Schneider <login@eliasschneider.com>

backend/internal/bootstrap/db_bootstrap.go

@@ -27,6 +27,10 @@ import (
 	sqliteutil "github.com/pocket-id/pocket-id/backend/internal/utils/sqlite"
 )
 
+// Records whether the SQLite database was found on a networked filesystem
+// It's always false when using Postgres
+var sqliteOnNetworkedFilesystem bool
+
 func NewDatabase(ctx context.Context) (db *gorm.DB, pg *pgxpool.Pool, err error) {
 	db, pg, err = ConnectDatabase(ctx)
 	if err != nil {
@@ -68,6 +72,9 @@ func ConnectDatabase(ctx context.Context) (db *gorm.DB, pg *pgxpool.Pool, err er
 			return nil, nil, err
 		}
 
+		// Detect whether the database lives on a networked filesystem to show a warning in the admin UI
+		sqliteOnNetworkedFilesystem = connector.IsNetworked()
+
 		// We open the connection ourselves, rather than letting Gorm do it, so it goes through the instrumented driver
 		// It also caps in-memory databases to a single connection, which they need to see the whole data
 		sqliteDB, err := sqliteinstrument.Open(connector, sqlInstrumentOptions())