dx: Add a db script and target to Makefile

Makefile

@@ -1,4 +1,4 @@
-.PHONY: help setup run dev build fmt migrate-up migrate-down migrate-status migrate-create generate docker-build
+.PHONY: help setup run dev build fmt migrate-up migrate-down migrate-status migrate-create db-reset generate docker-build
 
 .DEFAULT_GOAL := help
 
@@ -34,6 +34,9 @@ migrate-status: ## Show migration status
 migrate-create: ## Create a new migration (name=add_widgets)
 	./scripts/goose-create.sh $(name)
 
+db-reset: ## Wipe the database and reapply all migrations
+	./scripts/reset-db.sh
+
 generate: ## Run sqlc codegen
 	sqlc generate
 

scripts/reset-db.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+# Reset the Postgres database configured in .env: drop all its content, then
+# reapply migrations from scratch.
+# Usage: ./scripts/reset-db.sh
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+set -a
+# shellcheck disable=SC1091
+source "$SCRIPT_DIR/../.env"
+set +a
+
+DBSTRING="${GOOSE_DBSTRING:-postgres://${DB_USER}:${DB_PASSWORD}@${DB_HOST}:${DB_PORT}/${DB_NAME}?sslmode=${DB_SSL_MODE}}"
+
+echo "Dropping and recreating schema public on ${DB_NAME}..."
+psql "$DBSTRING" -v ON_ERROR_STOP=1 -c "DROP SCHEMA public CASCADE; CREATE SCHEMA public;"
+
+"$SCRIPT_DIR/goose.sh" up