public override void ExecuteCommand()

in Source/NuGetGallery.Operations/Tasks/Backups/BackupDatabaseTask.cs [44:94]
41 lines of code
5 McCabe index (conditional complexity)

        public override void ExecuteCommand()
        {
            Log.Trace("Connecting to server '{0}' to back up database '{1}'.", ConnectionString.InitialCatalog, Util.GetDatabaseServerName(ConnectionString));

            _startedBackup = false;

            var cstr = Util.GetMasterConnectionString(ConnectionString.ConnectionString);
            using(var connection = new SqlConnection(cstr))
            using(var db = new SqlExecutor(connection))
            {
                connection.Open();

                if (!Force)
                {
                    Log.Trace("Checking for a backup in progress.");
                    if (Util.BackupIsInProgress(db, BackupNamePrefix))
                    {
                        Log.Trace("Found a backup in progress; exiting.");
                        return;
                    }

                    Log.Trace("Found no backup in progress.");

                    Log.Trace("Getting last backup time.");
                    var lastBackupTime = Util.GetLastBackupTime(db, BackupNamePrefix);
                    if (lastBackupTime >= DateTime.UtcNow.Subtract(TimeSpan.FromMinutes(IfOlderThan)))
                    {
                        Log.Info("Skipping Backup. Last Backup was less than {0} minutes ago", IfOlderThan);
                        return;
                    }
                    Log.Trace("Last backup time is more than {0} minutes ago. Starting new backup.", IfOlderThan);
                }
                else
                {
                    Log.Trace("Forcing new backup");
                }

                // Generate a backup name
                var timestamp = Util.GetTimestamp();

                _backupName = BackupNamePrefix + timestamp;

                if (!WhatIf)
                {
                    db.Execute(string.Format("CREATE DATABASE {0} AS COPY OF {1}", _backupName, ConnectionString.InitialCatalog));
                    _startedBackup = true;
                }

                Log.Info("Started Copy of '{0}' to '{1}'", ConnectionString.InitialCatalog, _backupName);
            }
        }