/// <summary>
///
/// </summary>
public void Synchronize()
{
Directory.CreateDirectory(Source);
Directory.CreateDirectory(Target);
var src = new DirectoryStructure(Source);
var trg = new DirectoryStructure(Target);
bool waserror = false;
foreach (var fileItem in src.GetDiff(trg))
{
try{
Log.Trace("start " + fileItem);
Apply(fileItem);
Log.Info("complete " + fileItem);
}
catch (Exception ex) {
Log.Error("error " + fileItem, ex);
waserror = true;
}
}
if (!waserror)
{
var hash = src.GetStampFile().ToString();
File.WriteAllText(Path.Combine(Target, DirectoryStructure.SyncFileName), hash);
File.WriteAllText(Path.Combine(Source, DirectoryStructure.SyncFileName), hash);
Log.Info("stamp file wrote");
}
else
{
Log.Error("stamp not written due to some exceptions");
}
}
/// <summary>
/// Получить разницу между исходной и целевой директорией
/// </summary>
/// <returns></returns>
public IEnumerable <FileItem> GetDifference()
{
var src = new DirectoryStructure(Source);
var trg = new DirectoryStructure(Target);
return(src.GetDiff(trg));
}
/// <summary>
/// Получить разницу между директориями
/// </summary>
/// <param name="other"></param>
/// <returns></returns>
public IEnumerable <FileItem> GetDiff(DirectoryStructure other)
{
var src = this.GetStampFile();
var trg = other.GetStampFile();
if (src.ToString() == trg.ToString())
{
yield break;
}
var srce = src.Elements().Select(_ => new FileItem(_, FileOperation.None)).ToArray();
var trge = trg.Elements().Select(_ => new FileItem(_, FileOperation.None)).ToArray();
var leftOuterJoin = from s in srce
join t in trge
on s.Name equals t.Name
into temp
from t in temp.DefaultIfEmpty(new FileItem())
select new FileItem {
Hash = s.Hash, Name = s.Name, OtherHash = t.Hash
};
var rightOuterJoin = from t in trge
join s in srce
on t.Name equals s.Name
into temp
from s in temp.DefaultIfEmpty(new FileItem())
select new FileItem {
Hash = s.Hash, Name = t.Name, OtherHash = t.Hash
};
var fullOuterJoin = leftOuterJoin.Union(rightOuterJoin.Where(_ => string.IsNullOrWhiteSpace(_.Hash))).ToArray();
foreach (FileItem i in fullOuterJoin)
{
if (i.Hash == i.OtherHash)
{
continue;
}
if (string.IsNullOrWhiteSpace(i.Hash))
{
i.Operation = FileOperation.Delete;
yield return(i);
}
else if (string.IsNullOrWhiteSpace(i.OtherHash))
{
i.Operation = FileOperation.Create;
yield return(i);
}
else
{
i.Operation = FileOperation.Update;
yield return(i);
}
}
}
/// <summary>
/// Получить разницу между директориями
/// </summary>
/// <param name="other"></param>
/// <returns></returns>
public IEnumerable<FileItem> GetDiff(DirectoryStructure other){
var src = this.GetStampFile();
var trg = other.GetStampFile();
if (src.ToString() == trg.ToString()){
yield break;
}
var srce = src.Elements().Select(_=>new FileItem(_,FileOperation.None)).ToArray();
var trge = trg.Elements().Select(_ => new FileItem(_, FileOperation.None)).ToArray();
var leftOuterJoin = from s in srce
join t in trge
on s.Name equals t.Name
into temp
from t in temp.DefaultIfEmpty(new FileItem())
select new FileItem{Hash = s.Hash, Name = s.Name, OtherHash = t.Hash};
var rightOuterJoin = from t in trge
join s in srce
on t.Name equals s.Name
into temp
from s in temp.DefaultIfEmpty(new FileItem())
select new FileItem { Hash = s.Hash, Name = t.Name, OtherHash = t.Hash };
var fullOuterJoin = leftOuterJoin.Union(rightOuterJoin.Where(_=>string.IsNullOrWhiteSpace(_.Hash))).ToArray();
foreach (FileItem i in fullOuterJoin){
if (i.Hash == i.OtherHash) continue;
if (string.IsNullOrWhiteSpace(i.Hash)){
i.Operation = FileOperation.Delete;
yield return i;
}else if (string.IsNullOrWhiteSpace(i.OtherHash)){
i.Operation = FileOperation.Create;
yield return i;
}
else{
i.Operation = FileOperation.Update;
yield return i;
}
}
}
