Add tools for archive manager and archive-migration

Needs testing and review

tools/archive-migration/main.go

@@ -0,0 +1,67 @@
+// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
+// All rights reserved. This file is part of cc-backend.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
+)
+
+func main() {
+	var archivePath string
+	var dryRun bool
+	var numWorkers int
+	var flagLogLevel string
+	var flagLogDateTime bool
+
+	flag.StringVar(&archivePath, "archive", "", "Path to job archive to migrate (required)")
+	flag.BoolVar(&dryRun, "dry-run", false, "Preview changes without modifying files")
+	flag.IntVar(&numWorkers, "workers", 4, "Number of parallel workers")
+	flag.StringVar(&flagLogLevel, "loglevel", "info", "Sets the logging level: `[debug,info,warn (default),err,fatal,crit]`")
+	flag.BoolVar(&flagLogDateTime, "logdate", false, "Add date and time to log messages")
+	flag.Parse()
+
+	// Initialize logger
+	cclog.Init(flagLogLevel, flagLogDateTime)
+
+	// Validate inputs
+	if archivePath == "" {
+		fmt.Fprintf(os.Stderr, "Error: --archive flag is required\n\n")
+		flag.Usage()
+		os.Exit(1)
+	}
+
+	// Check if archive path exists
+	if _, err := os.Stat(archivePath); os.IsNotExist(err) {
+		cclog.Fatalf("Archive path does not exist: %s", archivePath)
+	}
+
+	// Display warning for non-dry-run mode
+	if !dryRun {
+		cclog.Warn("WARNING: This will modify files in the archive!")
+		cclog.Warn("It is strongly recommended to backup your archive first.")
+		cclog.Warn("Run with --dry-run first to preview changes.")
+		cclog.Info("")
+	}
+
+	// Run migration
+	migrated, failed, err := migrateArchive(archivePath, dryRun, numWorkers)
+	
+	if err != nil {
+		cclog.Errorf("Migration completed with errors: %s", err.Error())
+		if failed > 0 {
+			os.Exit(1)
+		}
+	}
+
+	if dryRun {
+		cclog.Infof("Dry run completed: %d jobs would be migrated", migrated)
+	} else {
+		cclog.Infof("Migration completed successfully: %d jobs migrated", migrated)
+	}
+}