private bool ObjectExist (SHA1 id)
{
if (File.Exists (GetObjectFullPath (id)))
return true;
return false;
}
public Commit (SHA1 treeId, SHA1 parentId, string authorName,
string commiterName, string authorEmail, string commiterEmail,
string messageContent) : base (Type.Commit, Encoding.UTF8.GetBytes (authorName)) // TODO: ENCODE
{
tree = treeId;
parent = parentId;
author.Name = authorName;
author.Email = authorEmail;
commiter.Name = commiterName;
commiter.Name = commiterEmail;
message = messageContent;
}
public Object Get (SHA1 key)
{
if (cache == null)
cache = new Dictionary<SHA1,Object>();
if (cache.ContainsKey (key))
return cache[key];
if (ObjectExist (key)) {
cache.Add (key, RetrieveObject (key));
} else {
throw new ArgumentException (String.Format ("The specified key {0} does not exist", key.ToHexString ()));
}
return cache[key];
}
public TreeEntry (byte[] mode, string name, SHA1 id)
{
if (id.Bytes.Length != 20)
throw new ArgumentException (String.Format
("The size of the SHA1 is incorrect, tree entry is invalid has to be 20 and is: ",
id.Bytes.Length));
if (String.IsNullOrEmpty (name))
throw new ArgumentException ("Name is null, tree entry is invalid");
if (mode.Length < 5)
throw new ArgumentException ("mode size is incorrect, tree entry is invalid, size has to be longer than 5 or 5");
this.mode = new GitFileMode (mode);
this.name = name;
this.id = id;
}
public static void ViewCompressedFile (string filePath)
{
FileStream fs = File.Open (filePath, FileMode.OpenOrCreate, FileAccess.ReadWrite);
byte[] bytes = new byte[(int) fs.Length];
fs.Read (bytes, 0, (int) fs.Length);
byte[] content = ObjectStore.Decompress (bytes);
SHA1 id = new SHA1 (content, true);
Console.WriteLine ("ID: {0}", id.ToHexString ());
Console.WriteLine ("Path {0}", filePath);
Console.WriteLine ("Length: " + content.Length);
foreach (char c in content) {
if (c == '\n') {
Console.WriteLine ("\\n");
continue;
}
if (c == '\0')
Console.Write ("[NULL]");
Console.Write (c);
}
}
public static void CheckoutTest (string hash, string objStorePath)
{
ObjectStore store = new ObjectStore (objStorePath);
SHA1 id = new SHA1 (SHA1.FromHexString (hash), false);
Console.WriteLine ("Hash: " + hash);
Console.WriteLine ("Id: " + id.ToHexString ());
Console.WriteLine ("hash created");
Tree tree = (Tree) store.Get (id);
Console.WriteLine ("tree created No. entries: " + tree.Entries.Length);
store.Checkout (Environment.CurrentDirectory, tree);
Console.WriteLine ("Checkout done WIIIII!!!");
}
public static void ReadGitTree ()
{
FileStream fs = new FileStream ("c45099a4cd4ba61a32e1c61d987b73dc3b6146b9", FileMode.Open);
Console.WriteLine ("SHA1 = c45099a4cd4ba61a32e1c61d987b73dc3b6146b9");
BinaryReader br = new BinaryReader (fs);
int len = (int)fs.Length;
byte[] content = br.ReadBytes (len);
Console.WriteLine ("First 2 bytes: {0} {1}", (int)content[0], (int)content[1]);
Console.WriteLine ("Last 4 bytes: {0}{1}{2}{3}", (int)content[len - 4], (int)content[len - 3],
(int)content[len - 2], (int)content[len - 1]);
byte[] deflated = Mono.Git.Core.ObjectStore.Decompress (content);
int pos = 0;
Console.Write ("header: ");
for (; deflated[pos] != '\0'; pos++) {
Console.Write ((char) deflated[pos]);
}
if (deflated[pos] == '\0') {
Console.WriteLine ("[null]");
pos++;
}
Console.WriteLine ("Content: ");
byte[] deflatedNoHeader = new byte [deflated.Length - pos];
Array.Copy (deflated, pos, deflatedNoHeader, 0, deflatedNoHeader.Length);
pos = 0;
int count = 0;
// for (; pos < deflatedNoHeader.Length; pos++) {
// if (deflatedNoHeader [pos] == '\0') {
// count = 0;
// Console.Write ("[#{0} null]", pos);
// pos += 21;
// if (pos > deflatedNoHeader.Length)
// break;
// byte[] bytes = new byte[20];
// Array.Copy (deflatedNoHeader, pos, bytes, 0, 20);
// SHA1 id = new SHA1 (bytes, true);
//
// Console.Write (id.ToHexString ());
// continue;
// }
// if (deflatedNoHeader [pos] == '1' && deflatedNoHeader [pos + 1] == '0' && deflatedNoHeader [pos + 2] == '0') {
// Console.Write ("\n#{0} count: {1}", pos, count);
// }
// Console.Write ((char) deflatedNoHeader [pos]);
// }
for (; pos < deflatedNoHeader.Length; pos++) {
if (deflatedNoHeader [pos] == '\0') {
break;
}
Console.Write ((char) deflatedNoHeader [pos]);
}
pos += 1;
byte[] bytes = new byte[20];
Array.Copy (deflatedNoHeader, pos, bytes, 0, 20);
SHA1 id = new SHA1 (bytes, false);
Console.WriteLine (" " + id.ToHexString ());
// foreach (byte b in deflatedNoHeader) {
// if (b == '\0')
// Console.Write ("[null]");
// Console.Write ((char) b);
// }
}
public BlobTreeEntry (Tree myParent, SHA1 objId, string objName, bool exec) :
base (myParent, objId, objName)
{
SetExecutable (exec);
}
public bool Equals (SHA1 o)
{
if (bytes == o.Bytes)
return true;
return bytes.Equals (o.Bytes);
}
private void WriteBuffer (SHA1 id, byte[] content)
{
try {
CreateObjectParent (id);
FileStream fs = File.Open (GetObjectFullPath (id), FileMode.CreateNew);
BinaryWriter bw = new BinaryWriter (fs);
bw.Write (Compress (content));
bw.Close ();
fs.Close ();
} catch (Exception e) {
Console.WriteLine ("The file object you are trying to write already exist");
}
}
private Object RetrieveObject (SHA1 id)
{
byte[] bytes = RetrieveContent (id);
return Object.DecodeObject (bytes);
}
private byte[] RetrieveContent (SHA1 id)
{
FileStream fs = new FileStream (GetObjectFullPath (id), FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader (fs);
byte[] bytes = new byte[(int) fs.Length];
fs.Read (bytes, 0, (int) fs.Length);
bytes = Decompress (bytes);
br.Close ();
fs.Close ();
return bytes;
}
private void PersistObject (SHA1 id)
{
Object o = cache[id];
FileStream fs = new FileStream(GetObjectFullPath (o.Id), FileMode.CreateNew, FileAccess.Write);
BinaryWriter bw = new BinaryWriter (fs);
bw.Write (Compress (o.Content));
bw.Close ();
fs.Close ();
}
private byte[] ReadBuffer (SHA1 id)
{
try {
FileStream fs = File.Open (GetObjectFullPath (id), FileMode.Open);
BinaryReader br = new BinaryReader (fs);
// I declared this here to close the stream and reader
byte[] data = Decompress (br.ReadBytes ((int)fs.Length));
br.Close ();
fs.Close ();
return data;
} catch (FieldAccessException e) {
Console.WriteLine ("The file object you are trying to read does not exist {0}", e);
}
return null;
}
private void WriteBuffer (SHA1 id, byte[] content, bool overwrite)
{
if (overwrite) {
File.Delete (GetObjectFullPath (id));
WriteBuffer (id, content);
return;
}
WriteBuffer (id, content);
}
public SymlinkTreeEntry (Tree myParent, SHA1 objId, string objName, bool exec) :
base (myParent, objId, objName)
{
mode = GitFileMode.Symlink;
}
private void AddEntry (byte[] mode, string name, SHA1 id)
{
if (entries == null) {
entries = new TreeEntry[0];
}
List<TreeEntry> entriesList = new List<TreeEntry> (entries);
TreeEntry entry = new TreeEntry (mode, name, id);
entriesList.Add (new TreeEntry (mode, name, id));
entries = entriesList.ToArray ();
}
private string GetObjectFullPath (SHA1 id)
{
return path.EndsWith ("/") ? (path + id.GetGitFileName ()) : (path + "/" + id.GetGitFileName ());
}
public Object (Type type, byte[] content)
{
// FIXME: ok, if we got a 0 length content(a blob), what we can do?
if (content.Length == 0 || content == null)
return;
byte[] header = CreateObjectHeader (type, content.Length.ToString ());
this.content = new byte[header.Length + content.Length];
// filling the content
Array.Copy (header, 0, this.content, 0, header.Length); // Copying the header first
Array.Copy (content, 0, this.content, header.Length, content.Length); // then the data
Console.WriteLine ("Length: " + this.content.Length);
foreach (char c in this.content) {
if (c == '\n') {
Console.WriteLine ("\\n");
continue;
}
if (c == '\0')
Console.Write ("[NULL]");
Console.Write (c);
}
// initializing the id with the content
id = new SHA1 (this.content, true);
Console.WriteLine ("ID: " + id.ToHexString ());
}
/// <summary>
/// Create a object first parent... e.g. f4/47d5573b70cf042d036bfa62f55cdefccd9909
/// f4 is the parent we create in this method
/// </summary>
/// <param name="id">
/// A <see cref="SHA1"/>
/// </param>
private void CreateObjectParent (SHA1 id)
{
string fullPath = null;
if (!path.EndsWith ("/"))
fullPath = path + "/" + id.ToHexString (0, 1);
else
fullPath = path + id.ToHexString (0, 1);
if (!Directory.Exists (fullPath))
Directory.CreateDirectory (fullPath);
}
