Add utils functions to import and export DuckDB DBs

utils/export_duckdb.py

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+"""
+Export the DuckDB database schema and data to a directory to be imported later
+by the user. This is preferred over version controlling the DB file itself
+due to merge conflicts and other issues that arise with binary files.
+"""
+import duckdb
+
+# The directory to get the DB file from.
+export_from = "resources/portfolio.db"
+# The directory to export the DB to.
+export_to = "resources/portfolio_data"
+
+conn = duckdb.connect(export_from)
+conn.execute(f"EXPORT DATABASE '{export_to}'")

utils/import_duckdb.py

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+"""
+Import the DuckDB database schema and data from a directory where it was
+previously exported by a user. This is preferred over version controlling the
+DB file itself due to merge conflicts and other issues that arise with binary
+files.
+"""
+import duckdb
+
+# The directory to import the DB file from.
+import_from = "resources/portfolio_data"
+# The directory to load the DB into.
+import_to = "resources/portfolio.db"
+
+conn = duckdb.connect(import_to)
+conn.execute(f"IMPORT DATABASE '{import_from}'")