private static Func <FtpListItem, FileInfo, bool> GetVersionEqualsComparer(UpdateInfo updateInfo, FtpListItem updateRoot)
{
switch (updateInfo.Versioning)
{
case UpdateInfo.VersioningMode.Size:
return((item, info) => item.Size == info.Length);
case UpdateInfo.VersioningMode.Date:
return((item, info) => GetDate(item) <= info.LastWriteTimeUtc);
case UpdateInfo.VersioningMode.Contents:
if (!updateInfo.ContentHashes.Any())
{
Console.WriteLine("No hashes found in " + updateInfo.GUID + " while VersioningMode was set to Contents, falling back to Size");
goto case UpdateInfo.VersioningMode.Size;
}
var rootLength = updateRoot.FullName.Length;
return((item, info) =>
{
var match = updateInfo.ContentHashes.FirstOrDefault(x => PathTools.PathsEqual(x.RelativeFileName, item.FullName.Substring(rootLength)));
if (match == null || match.Hash == 0)
{
Console.WriteLine($"No hash found on remote for file {item.FullName.Substring(rootLength)} - comparing size instead");
return item.Size == info.Length;
}
return FileContentsCalculator.GetFileHash(info) == match.Hash;
});
default:
throw new ArgumentOutOfRangeException();
}
}
private static Func <IRemoteItem, FileInfo, bool> GetVersionEqualsComparer(UpdateInfo updateInfo)
{
switch (updateInfo.Versioning)
{
case UpdateInfo.VersioningMode.Size:
return((item, info) => item.ItemSize == info.Length);
case UpdateInfo.VersioningMode.Date:
return((item, info) => item.ModifiedTime <= info.LastWriteTimeUtc);
case UpdateInfo.VersioningMode.Contents:
if (!updateInfo.ContentHashes.Any())
{
Console.WriteLine($"No hashes found in {updateInfo.GUID} while VersioningMode was set to Contents, falling back to Size");
goto case UpdateInfo.VersioningMode.Size;
}
return((remote, local) =>
{
var h = FileContentsCalculator.GetFileHash(local);
var match = updateInfo.ContentHashes.FirstOrDefault(hash => PathTools.PathsEqual(hash.RelativeFileName, remote.ClientRelativeFileName));
if (match != null && h != null)
{
if (h.SB3UHash != 0 && match.SB3UHash != 0)
{
return h.SB3UHash == match.SB3UHash;
}
if (h.FileHash != 0 && match.FileHash != 0)
{
return h.FileHash == match.FileHash;
}
}
Console.WriteLine($"No hash found on remote for file {remote.ClientRelativeFileName}, comparing file size instead");
return remote.ItemSize == local.Length;
});
default:
throw new ArgumentOutOfRangeException();
}
}
