private BackupService(string sourcePath, IReadOnlyList <string> excludePaths, BackupSum previousBackupSum,
string backupPath, BackupManifestWriter manifestWriter, Logger logger)
{
SourcePath = sourcePath;
// Trim trailing directory separator for efficient matching later.
ExcludePaths = excludePaths.Select(p => Utility.RemoveTrailingDirSep(p)).ToList();
PreviousBackupSum = previousBackupSum;
BackupPath = backupPath;
BackupDataPath = BackupMeta.BackupDataPath(backupPath);
ManifestWriter = manifestWriter;
Logger = logger;
Results = new(false, true, 0, 0, 0, 0);
}
/// <summary>
/// Runs the backup.
/// </summary>
/// <param name="config">The configuration of this backup.</param>
/// <param name="previousBackupSum">Sum of the existing backup data for this source directory.</param>
/// <param name="backupName">The name of the new backup directory.</param>
/// <param name="manifestWriter">Writes the backup manifest. Must be in a newly-constructed state.</param>
/// <returns>Results of the backup.</returns>
/// <exception cref="ApplicationRuntimeError">If the backup fails.</exception>
private BackupResults DoBackup(AppConfig config, BackupSum previousBackupSum, string backupName,
BackupManifestWriter manifestWriter)
{
var backupPath = BackupMeta.BackupPath(config.TargetPath, backupName);
Logger.Info("Running backup operation");
try {
return(BackupService.Run(config.SourcePath, config.ExcludePaths, previousBackupSum, backupPath,
manifestWriter, Logger));
}
catch (BackupServiceException e) {
throw new ApplicationRuntimeError(e.Message);
}
}
/// <summary>
/// Runs a backup instance. Backs up files from the source directory to the backup directory and records them
/// in the backup manifest file.
/// </summary>
/// <param name="sourcePath">The path of the directory to back up.</param>
/// <param name="excludePaths">Paths to exclude from the backup. Should be normalised.</param>
/// <param name="previousBackupSum">Sum of the existing backups for this source directory.</param>
/// <param name="backupPath">The path of the directory to contain the new backup.</param>
/// <param name="manifestWriter">Writes the backup manifest. Must be in a newly-constructed state.</param>
/// <param name="logger">For logging of info and warnings during the backup.</param>
/// <returns>The results of the backup.</returns>
/// <exception cref="BackupServiceException">If the source directory can't be accessed.</exception>
public static BackupResults Run(string sourcePath, IReadOnlyList <string> excludePaths,
BackupSum previousBackupSum, string backupPath, BackupManifestWriter manifestWriter, Logger logger) =>
new BackupService(sourcePath, excludePaths, previousBackupSum, backupPath, manifestWriter, logger)
.Run();