백업 테이블 운영

cmd/user_program_import/main.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"context"
+	"log"
+	"os"
+	"time"
+
+	"github.com/jackc/pgx/v5"
+
+	"geoip-rest/internal/importer"
+)
+
+const (
+	defaultCSVPath   = "./initial_data/user_program_info_init_20251208.csv"
+	defaultUpdateDir = "./update_data"
+	defaultTimeout   = 10 * time.Minute
+	defaultSchema    = "public"
+	defaultLogDir    = "./log"
+	targetTableName  = "user_program_info_replica"
+)
+
+func main() {
+	dbURL := os.Getenv("DATABASE_URL")
+	if dbURL == "" {
+		log.Fatal("DATABASE_URL is required")
+	}
+
+	csvPath := env("USER_PROGRAM_INFO_CSV", defaultCSVPath)
+	updateDir := env("USER_PROGRAM_UPDATE_DIR", defaultUpdateDir)
+	schema := env("USER_PROGRAM_INFO_SCHEMA", defaultSchema)
+	logDir := env("USER_PROGRAM_IMPORT_LOG_DIR", defaultLogDir)
+
+	ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout)
+	defer cancel()
+
+	conn, err := pgx.Connect(ctx, dbURL)
+	if err != nil {
+		log.Fatalf("failed to connect to database: %v", err)
+	}
+	defer conn.Close(context.Background())
+
+	if err := importer.EnsureUserProgramReplica(ctx, conn, csvPath, schema, logDir); err != nil {
+		log.Fatalf("failed to ensure %s table: %v", targetTableName, err)
+	}
+
+	if err := importer.ImportUserProgramUpdates(ctx, conn, updateDir, schema, logDir); err != nil {
+		log.Fatalf("failed to import updates from %s: %v", updateDir, err)
+	}
+
+	log.Printf("%s is ready in schema %s using data from %s (updates: %s)", targetTableName, schema, csvPath, updateDir)
+}
+
+func env(key, fallback string) string {
+	if val := os.Getenv(key); val != "" {
+		return val
+	}
+	return fallback
+}