feat: add db management scripts

internal/config/main.go

@@ -0,0 +1,34 @@
+package config
+
+import (
+	"log"
+	"os"
+
+	"github.com/joho/godotenv"
+)
+
+type dbConfig struct {
+	Url string
+}
+
+func loadEnv() {
+	err := godotenv.Load()
+	if err != nil {
+		log.Println("Warning: could not load .env file")
+	}
+}
+
+func getDbConfig() *dbConfig {
+	loadEnv()
+
+	dbUrl := os.Getenv("PG_FROM_DB_URL")
+	if dbUrl == "" {
+		log.Fatal("PG_FROM_DB_URL environment variable not set")
+	}
+
+	return &dbConfig{
+		Url: dbUrl,
+	}
+}
+
+var Db *dbConfig = getDbConfig()