/// <summary>
/// This method should be called after all the contents of tree is added ie.
/// after every Blob was added via AddBlobToTreeHierarchy method call.
/// </summary>
/// <returns></returns>
public HashKey GetChecksum()
{
if (_treeBuilderFileContent == null)
{
_treeBuilderFileContent = CreateTreeBuilderFileContent();
}
return(ContentHasher.HashContent(_treeBuilderFileContent));
}
/// <param name="parentKey"> null if this is the initial commit </param>
/// <param name="treeKey"></param>
/// <param name="message"></param>
public Commit(HashKey parentKey, HashKey treeKey, string message)
{
ParentKey = parentKey;
TreeKey = treeKey;
Message = message;
_commitFileContent = CreateCommitFileContent();
_checksum = ContentHasher.HashContent(_commitFileContent);
}
public Blob(RelativePath filePath)
{
FilePath = filePath.GetRelativeToGitRoot();
FileName = filePath.GetFileName();
using (StreamReader reader = new StreamReader(filePath.GetAbsolutePath())) {
FileContent = reader.ReadToEnd();
}
_blobContent = CreateBlobFileContent();
_checksum = ContentHasher.HashContent(_blobContent);
}
/// <summary>
/// This method is used for retrieving a blob object from <see cref="ObjectDatabase"/>.
/// </summary>
/// <param name="content"></param>
/// <returns></returns>
public static Blob ParseFromString(string content)
{
StringReader reader = new StringReader(content);
string filePath = ParseFirstLine(reader.ReadLine());
if (filePath == null)
{
return(null);
}
Blob blob = new Blob();
blob.FilePath = filePath;
blob.FileName = GetFileNameFromFilePath(filePath);
blob.FileContent = reader.ReadToEnd();
blob._blobContent = blob.CreateBlobFileContent();
blob._checksum = ContentHasher.HashContent(blob._blobContent);
return(blob);
}
/// <summary>
/// Parses tree from given string. Suppose that string represents content
/// of a file.
/// </summary>
/// <param name="content"></param>
/// <returns> null if parsing fails </returns>
public static Tree ParseFromString(string content)
{
StringReader reader = new StringReader(content);
string dirName = ParseFirstLine(reader.ReadLine());
if (dirName == null)
{
return(null);
}
Dictionary <string, HashKey> blobs = new Dictionary <string, HashKey>();
Dictionary <string, HashKey> subTrees = new Dictionary <string, HashKey>();
string line = reader.ReadLine();
while (line != null)
{
string[] lineItems = line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (IsTreeEntry(lineItems))
{
string subTreeDirName = lineItems[2];
HashKey subTreeKey = HashKey.ParseFromString(lineItems[1]);
subTrees.Add(subTreeDirName, subTreeKey);
}
else if (IsBlobEntry(lineItems))
{
string blobFileName = lineItems[2];
HashKey blobKey = HashKey.ParseFromString(lineItems[1]);
blobs.Add(blobFileName, blobKey);
}
else
{
return(null);
}
line = reader.ReadLine();
}
return(new Tree(ContentHasher.HashContent(content), dirName, blobs, subTrees));
}