private static MigrationSettings CreateMigrationSettings(ProgramArguments importerArgs)
{
MigrationSettings settings = MigrationSettings.DefaultSettings;
settings.WorkItemsToSkip = importerArgs.WorkItemsToSkip;
settings.MaxItemsToMigrate = importerArgs.MaxItemsToMigrate;
return(settings);
}
/// <summary>
/// Migrates all work items from <paramref name="source"/> to <paramref name="destination"/>.
/// </summary>
public static async Task MigrateAsync(
IWorkItemSource source, IWorkItemDestination destination, MigrationSettings settings, ILogger logger)
{
ArgValidate.IsNotNull(source, nameof(source));
ArgValidate.IsNotNull(destination, nameof(destination));
ArgValidate.IsNotNull(logger, nameof(logger));
ArgValidate.IsNotNull(settings, nameof(settings));
logger.LogMessage(LogLevel.Info, Resources.BeginMigrationMessage);
try
{
// Retrive all work items that have already been migrated.
logger.LogMessage(LogLevel.Info, Resources.LookupMigratedWorkItemsMessage);
IReadOnlyList <MigratedWorkItem> migratedWorkItems = await destination.GetMigratedWorkItemsAsync();
IDictionary <int, MigrationState> migratedWorkItemState = GetWorkItemDictionary(migratedWorkItems);
// Update the skip list to include any work items the user indicated we should not retrieve.
AddSkipItemsToMigrateState(settings.WorkItemsToSkip, migratedWorkItemState);
// Get the list of potential work items to migrate.
logger.LogMessage(LogLevel.Info, Resources.LookupWorkItemsToMigrate);
IReadOnlyList <WorkItemSummary> notMigratedWorkItems =
await source.GetWorkItemsAsync(id => GetMigrationState(migratedWorkItemState, id) != MigrationState.Migrated);
// Get the actual list of work items to migrate taking into account the limit specified in migration settings.
int countToMigrate = settings.MaxItemsToMigrate == -1 ? notMigratedWorkItems.Count : settings.MaxItemsToMigrate;
logger.LogMessage(LogLevel.Info, Resources.StartingMigrationOfXWorkItems, countToMigrate);
logger.LogMessage(LogLevel.Warning, Resources.ProgressOfMigrationWillBeSlow);
IEnumerable <WorkItemSummary> workItemsToMigrate = notMigratedWorkItems.Take(countToMigrate);
int migratedWorkItemCount = 0;
// Download the details from CodePlex and push it to the destination.
foreach (WorkItemSummary workItemSummary in workItemsToMigrate)
{
logger.LogMessage(LogLevel.Trace, Resources.LookupIndividualWorkItem, workItemSummary.Id);
WorkItemDetails item = null;
await RetryAsync(
async() => item = await source.GetWorkItemAsync(workItemSummary), settings.MaxRetryCount, settings.RetryDelay);
if (GetMigrationState(migratedWorkItemState, workItemSummary.Id) == MigrationState.PartiallyMigrated)
{
logger.LogMessage(LogLevel.Trace, Resources.UpdatingWorkItem, workItemSummary.Id);
await RetryAsync(() => destination.UpdateWorkItemAsync(item), settings.MaxRetryCount, settings.RetryDelay);
}
else
{
logger.LogMessage(LogLevel.Trace, Resources.AddingWorkItem, workItemSummary.Id);
await RetryAsync(() => destination.WriteWorkItemAsync(item), settings.MaxRetryCount, settings.RetryDelay);
}
logger.LogMessage(LogLevel.Info, Resources.SuccessfullyMigratedWorkItemIdXTitleY, workItemSummary.Id, ++migratedWorkItemCount,
countToMigrate, workItemSummary.Title);
}
}
catch (Exception ex)
{
logger.LogMessage(LogLevel.Error, Resources.LogExceptionMessage, ex.Message);
throw;
}
logger.LogMessage(LogLevel.Info, Resources.MigrationCompletedSuccessfully);
}
