Files

47 lines
986 B
Go

// Command migrate applies db/schema.sql to DATABASE_URL.
// Usage: go run ./cmd/migrate [-schema db/schema.sql]
package main
import (
"context"
"flag"
"fmt"
"os"
"time"
"github.com/jackc/pgx/v5/pgxpool"
)
func main() {
schemaPath := flag.String("schema", "db/schema.sql", "path to schema file")
flag.Parse()
dsn := os.Getenv("DATABASE_URL")
if dsn == "" {
fmt.Fprintln(os.Stderr, "error: DATABASE_URL not set")
os.Exit(1)
}
sqlBytes, err := os.ReadFile(*schemaPath)
if err != nil {
fmt.Fprintln(os.Stderr, "error reading schema:", err)
os.Exit(1)
}
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()
pool, err := pgxpool.New(ctx, dsn)
if err != nil {
fmt.Fprintln(os.Stderr, "error connecting:", err)
os.Exit(1)
}
defer pool.Close()
if _, err := pool.Exec(ctx, string(sqlBytes)); err != nil {
fmt.Fprintln(os.Stderr, "error applying schema:", err)
os.Exit(1)
}
fmt.Println("schema applied to", dsn)
}