initial commit

scripts/migrate/main.go

@@ -0,0 +1,65 @@
+// migrate runs (forward) migrations
+package main
+
+import (
+	"database/sql"
+	"embed"
+	"fmt"
+	"os"
+
+	"github.com/joho/godotenv"
+	migrate "github.com/rubenv/sql-migrate"
+
+	// SQL driver
+	_ "github.com/jackc/pgx/v4/stdlib"
+)
+
+//go:embed *.sql
+var migrations embed.FS
+
+func main() {
+	err := godotenv.Load()
+	if err != nil {
+		fmt.Println("error loading .env file:", err)
+		os.Exit(1)
+	}
+
+	db, err := sql.Open("pgx", os.Getenv("DATABASE_URL"))
+	if err != nil {
+		fmt.Println("error opening database:", err)
+		os.Exit(1)
+	}
+
+	fmt.Println("opened database")
+
+	defer func() {
+		err := db.Close()
+		if err != nil {
+			fmt.Println("error closing database:", err)
+			os.Exit(1)
+		}
+	}()
+
+	if err := db.Ping(); err != nil {
+		fmt.Println("error pinging database:", err)
+		return
+	}
+
+	src := &migrate.EmbedFileSystemMigrationSource{
+		FileSystem: migrations,
+		Root:       ".",
+	}
+
+	fmt.Println("executing migrations")
+	n, err := migrate.Exec(db, "postgres", src, migrate.Up)
+	if err != nil {
+		fmt.Println("error executing migrations:", err)
+		return
+	}
+
+	if n == 0 {
+		fmt.Println("database is already up to date")
+	} else {
+		fmt.Printf("executed %v migrations!\n", n)
+	}
+}