/// <summary>
/// Открывет на чтение файловый поток
/// </summary>
/// <param name="name"></param>
/// <param name="versionHash"></param>
/// <returns></returns>
public Stream Open(string name, string versionHash = null)
{
string datahash = null;
string namehash = null;
using (var o = _mapper.Open(name)) {
if (string.IsNullOrWhiteSpace(versionHash))
{
versionHash = o.GetHeadHash();
if (versionHash == Const.DETACHEDHEAD)
{
throw new Exception("head is detached");
}
}
var c = o.Resolve(versionHash);
if (null == c)
{
throw new Exception("commit " + versionHash + " not resolved");
}
datahash = c.Hash;
namehash = o.MappingInfo.NameHash;
}
var binrecord = new HashedDirectoryRecord {
DataHash = datahash, NameHash = namehash
};
return(_hashed.Open(binrecord));
}
public void CanWriteAndRead(string file, string content, bool compressed)
{
hashdir = new HashedDirectory(dir + "/compress_" + compressed, compressed, 7);
for (var i = 0; i <= 10; i++)
{
content = content + content;
}
var record = hashdir.Write(file, content);
WriteDirToConsole();
Assert.NotNull(record);
Assert.AreNotEqual(record.NameHash, record.DataHash);
Assert.AreEqual(7, record.NameHash.Length);
Assert.AreEqual(7, record.DataHash.Length);
Assert.AreEqual(DateTime.Now.Year, record.LastWriteTime.Year);
var res = new StreamReader(hashdir.Open(record)).ReadToEnd();
Assert.AreEqual(content, res);
res = new StreamReader(hashdir.Open(file)).ReadToEnd();
Assert.AreEqual(content, res);
}
/// <summary>
/// Получение потока до файла
/// </summary>
/// <param name="access">Уровень доступа до потока</param>
/// <returns>Поток до файла</returns>
public Stream GetStream(FileAccess access)
{
return(_hashedDirectoryStorage.Open(Descriptor.Path));
}