public static void Combine(string zipPath, string resultPath, int maxDepth, string issuer,
string comment)
{
if (!File.Exists(zipPath))
throw new ArgumentException("Source directory not found.");
if (!Directory.Exists(Path.GetDirectoryName(Path.GetFullPath(resultPath))))
throw new ArgumentException("Destination directory not found.");
if (File.Exists(resultPath))
throw new ArgumentException("Destination file already exists.");
var backupStatus = new BackupStatus();
backupStatus.ReadFiles(zipPath, true, maxDepth);
var groups = from x in backupStatus.Root.Children
group x by x.ArchivePath
into archives
select archives;
using (var file = ZipFile.Open(resultPath, ZipArchiveMode.Create))
{
var informationFile = file.CreateEntry("info.xml");
using (var stream = informationFile.Open())
{
var information = new BackupInformation
{
DeletedFiles = backupStatus.LastDeletedFiles,
ParentName = backupStatus.Root.Information.ParentName,
CreationDate = DateTime.Now,
Issuer = issuer,
Comment = comment
};
information.Save(stream);
}
foreach (var group in groups)
{
using (var zipFile = ZipFile.Open(group.Key, ZipArchiveMode.Read))
{
foreach (var backupFile in group)
{
var relativeName = "data" + backupFile.VirtualPath.Substring(1);
var entry = file.CreateEntry(relativeName + "." + backupFile.FileHash);
using (var stream = entry.Open())
{
using (var fileStream = zipFile.GetEntry(entry.FullName).Open())
{
fileStream.CopyTo(stream);
}
}
}
}
}
}
}
private void SaveBackup(string fileName, string parentHash, IEnumerable<BackupFile> removedFiles, IEnumerable<BackupFile> addedFiles, string comment = null, string issuer = null)
{
using (var file = ZipFile.Open(fileName, ZipArchiveMode.Create))
{
var informationFile = file.CreateEntry("info.xml");
using (var stream = informationFile.Open ())
{
var information = new BackupInformation
{
DeletedFiles =
new HashSet<string>(
removedFiles.Select(a => a.VirtualPath)),
ParentName = parentHash,
CreationDate = DateTime.Now,
Comment = comment,
Issuer = issuer
};
information.Save(stream);
}
foreach (var backupFile in addedFiles)
{
var relativeName = "data" + backupFile.VirtualPath.Substring(1);
var entry = file.CreateEntry(relativeName + "." + backupFile.FileHash);
using (var stream = entry.Open ())
{
using (
var fileStream =
new FileStream(Path.Combine(WorkingDirectoryPath, backupFile.VirtualPath.Substring(2)),
FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
fileStream.CopyTo(stream);
}
}
}
}
}