public static byte[] GetSelectedLinesAsPatch(GitModule module, string text, int selectionPosition, int selectionLength, bool staged, Encoding fileContentEncoding, bool isNewFile)
{
string header;
ChunkList selectedChunks = ChunkList.GetSelectedChunks(text, selectionPosition, selectionLength, staged, out header);
if (selectedChunks == null)
{
return(null);
}
//if file is new, --- /dev/null has to be replaced by --- a/fileName
if (isNewFile)
{
header = CorrectHeaderForNewFile(header);
}
string body = selectedChunks.ToStagePatch(staged, false);
if (header == null || body == null)
{
return(null);
}
else
{
return(GetPatchBytes(header, body, fileContentEncoding));
}
}
public static byte[] GetResetUnstagedLinesAsPatch(GitModule module, string text, int selectionPosition, int selectionLength, bool staged, Encoding fileContentEncoding)
{
string header;
ChunkList selectedChunks = ChunkList.GetSelectedChunks(text, selectionPosition, selectionLength, staged, out header);
if (selectedChunks == null)
{
return(null);
}
string body = selectedChunks.ToResetUnstagedLinesPatch();
//git apply has problem with dealing with autocrlf
//I noticed that patch applies when '\r' chars are removed from patch if autocrlf is set to true
if (body != null && module.EffectiveConfigFile.core.autocrlf.ValueOrDefault == AutoCRLFType.@true)
{
body = body.Replace("\r", "");
}
if (header == null || body == null)
{
return(null);
}
else
{
return(GetPatchBytes(header, body, fileContentEncoding));
}
}
public static byte[] GetResetUnstagedLinesAsPatch(GitModule module, string text, int selectionPosition, int selectionLength, bool staged, Encoding fileContentEncoding)
{
string header;
ChunkList selectedChunks = ChunkList.GetSelectedChunks(text, selectionPosition, selectionLength, staged, out header);
if (selectedChunks == null)
{
return(null);
}
string body = selectedChunks.ToResetUnstagedLinesPatch();
//git apply has problem with dealing with autocrlf
//I noticed that patch applies when '\r' chars are removed from patch if autocrlf is set to true
if (body != null && "true".Equals(module.GetEffectiveSetting("core.autocrlf"), StringComparison.InvariantCultureIgnoreCase))
{
body = body.Replace("\r", "");
}
if (header == null || body == null)
{
return(null);
}
else
{
return(GetPatchBytes(header, body, fileContentEncoding));
}
}
public static ChunkList FromNewFile(GitModule module, string text, int selectionPosition, int selectionLength, bool reset, byte[] FilePreabmle, Encoding fileContentEncoding)
{
Chunk chunk = Chunk.FromNewFile(module, text, selectionPosition, selectionLength, reset, FilePreabmle, fileContentEncoding);
ChunkList result = new ChunkList();
result.Add(chunk);
return(result);
}
public static ChunkList FromNewFile(GitModule module, string text, int selectionPosition, int selectionLength, bool reset)
{
Chunk chunk = Chunk.FromNewFile(module, text, selectionPosition, selectionLength, reset);
ChunkList result = new ChunkList();
result.Add(chunk);
return(result);
}
public static byte[] GetSelectedLinesAsNewPatch(GitModule module, string newFileName, string text, int selectionPosition, int selectionLength, Encoding fileContentEncoding, bool reset, byte[] filePreabmle)
{
StringBuilder sb = new StringBuilder();
const string fileMode = "100000"; // given fake mode to satisfy patch format, git will override this
sb.Append(string.Format("diff --git a/{0} b/{0}", newFileName));
sb.Append("\n");
if (!reset)
{
sb.Append("new file mode " + fileMode);
sb.Append("\n");
}
sb.Append("index 0000000..0000000");
sb.Append("\n");
if (reset)
{
sb.Append("--- a/" + newFileName);
}
else
{
sb.Append("--- /dev/null");
}
sb.Append("\n");
sb.Append("+++ b/" + newFileName);
sb.Append("\n");
string header = sb.ToString();
ChunkList selectedChunks = ChunkList.FromNewFile(module, text, selectionPosition, selectionLength, reset, filePreabmle, fileContentEncoding);
if (selectedChunks == null)
{
return(null);
}
string body = selectedChunks.ToStagePatch(false, true);
// git apply has problem with dealing with autocrlf
// I noticed that patch applies when '\r' chars are removed from patch if autocrlf is set to true
if (reset && body != null && module.EffectiveConfigFile.core.autocrlf.ValueOrDefault == AutoCRLFType.@true)
{
body = body.Replace("\r", "");
}
if (header == null || body == null)
{
return(null);
}
else
{
return(GetPatchBytes(header, body, fileContentEncoding));
}
}
public static ChunkList GetSelectedChunks(string text, int selectionPosition, int selectionLength, out string header)
{
header = null;
// When there is no patch, return nothing
if (string.IsNullOrEmpty(text))
{
return(null);
}
// TODO: handling submodules
// Divide diff into header and patch
int patchPos = text.IndexOf("@@");
if (patchPos < 1)
{
return(null);
}
header = text.Substring(0, patchPos);
string diff = text.Substring(patchPos - 1);
string[] chunks = diff.Split(new[] { "\n@@" }, StringSplitOptions.RemoveEmptyEntries);
ChunkList selectedChunks = new ChunkList();
int i = 0;
int currentPos = patchPos - 1;
while (i < chunks.Length && currentPos <= selectionPosition + selectionLength)
{
string chunkStr = chunks[i];
currentPos += 3;
// if selection intersects with chunsk
if (currentPos + chunkStr.Length >= selectionPosition)
{
Chunk chunk = Chunk.ParseChunk(chunkStr, currentPos, selectionPosition, selectionLength);
if (chunk != null)
{
selectedChunks.Add(chunk);
}
}
currentPos += chunkStr.Length;
i++;
}
return(selectedChunks);
}
