public void DiffWorkers_DoWork(object sender, DoWorkEventArgs e)
{
Revision oRevision = (Revision)e.Argument;
//Check if it was canceled a few moments after being started.
if (((BackgroundWorker)sender).CancellationPending)
{
return;
}
while (cDiffWorkers.Count > 3)
{
if (sender == cDiffWorkers[0])
{
break;
}
//There are already 3 works busy, so wait a moment to give them time to finish.
System.Threading.Thread.Sleep(400);
}
oRevision = CVSCalls.GetDiff(oRevision);
e.Result = oRevision;
oDatabase.SaveDiff(oRevision);
}
public static Revision GetDiff(Revision oRevision)
{
if (oRevision.sRevision.EndsWith(".1") || oRevision.bReAdded || oRevision.sState == "dead")
{
oRevision = CVSCalls.GetBaseVersion(oRevision);
}
else
{
oRevision = CVSCalls.GetDiffPrevious(oRevision, oRevision.iWhitespace);
}
return(oRevision);
}
private static Revision GetBaseVersion(Revision oRevision)
{
List <string> cLines = new List <string>();
if (oRevision.sState != "dead")
{
cLines = CVSCalls.RunCommand(oRevision.oFile.sPath, $"cvs co -r {oRevision.sRevision} -p \"{oRevision.oFile.sCVSPath}/{oRevision.oFile.sName}\"");
}
else
{
int iPrevRevision = int.Parse(oRevision.sRevision.Substring(oRevision.sRevision.LastIndexOf('.') + 1)) - 1;
string sPrevRevision = oRevision.sRevision.Substring(0, oRevision.sRevision.LastIndexOf('.') + 1) + iPrevRevision.ToString();
cLines = CVSCalls.RunCommand(oRevision.oFile.sPath, $"cvs co -r {sPrevRevision} -p \"{oRevision.oFile.sCVSPath}/{oRevision.oFile.sName}\"");
}
DiffBlock oDiffBlock = new DiffBlock();
oDiffBlock.iStartLine = (cLines.Count == 0) ? 0 : 1;
oDiffBlock.iEndLine = cLines.Count;
List <DiffBlock.LineChange> cChanges = new List <DiffBlock.LineChange>();
for (int i = 0; i < cLines.Count; i++)
{
DiffBlock.LineChange oLineChange = new DiffBlock.LineChange()
{
sAction = (oRevision.sState != "dead")? "+" : "-",
sLine = cLines[i]
};
cChanges.Add(oLineChange);
}
oDiffBlock.cLines = cChanges;
oRevision.cDiffBlocks.Add(oDiffBlock);
oRevision.sLinesChanged = (oRevision.sState != "dead") ? $"+{cLines.Count} -0" : $"+0 -{cLines.Count}";
return(oRevision);
}
public static List <Commit> GetCommits(CVSFile oFile, List <Tag> cTags)
{
List <Commit> cCommits = new List <Commit>();
//Check if it's an CVS related File; those can be ignored.
string sTest = oFile.sPath + "\\" + oFile.sName;
if (sTest.Contains("CVS\\Repository") || sTest.Contains("CVS\\Root") || sTest.Contains("CVS\\Entries") || sTest.Contains("CVS\\Baserev"))
{
Console.WriteLine($"Ignored: {oFile.sPath}\\{oFile.sName}");
oFile.bIgnored = true;
return(cCommits);
}
List <string> cLines = CVSCalls.RunCommand(oFile.sPath, $"cvs log \"{oFile.sName}\"");
//If output is just 5 line, it probably means the file is not known in cvs (yet) or some other error.
if (cLines.Count <= 5)
{
Console.WriteLine($"No Data: {oFile.sPath}\\{oFile.sName}");
return(cCommits);
}
int iLine = 0;
List <KeyValuePair <string, string> > cRawTags = new List <KeyValuePair <string, string> >();
string sRCS = null;
if (oFile.iID == 0)
{
if (cLines[1].Contains("RCS file:"))
{
sRCS = cLines[1].Replace("RCS file: ", "").Replace("/" + oFile.sName + ",v", "");
}
}
//Find begin of symbolic names.
for (int i = iLine; i < cLines.Count; i++)
{
if (cLines[i].Contains("symbolic names:"))
{
iLine = i + 1;
break;
}
}
//Process symbolic names (aka tags).
for (int i = iLine; i < cLines.Count; i++)
{
if (cLines[i].Contains("keyword substitution:"))
{
iLine = i + 1;
break;
}
string[] aRawTag = cLines[i].Split(':');
KeyValuePair <string, string> oRawTag = new KeyValuePair <string, string>(
aRawTag[0].Trim(new char[] { ' ', (char)9 }),
aRawTag[1].TrimStart(' ')
);
cRawTags.Add(oRawTag);
}
//Find begin of commits
for (int i = iLine; i < cLines.Count; i++)
{
if (cLines[i].Contains("description:"))
{
iLine = i + 1;
break;
}
}
//Process commits
for (int i = iLine; i < cLines.Count; i++)
{
Commit oCommit = new Commit();
Revision oRevision = new Revision();
oRevision.sRevision = cLines[i + 1].Replace("revision ", "");
Match oMatch;
oMatch = new Regex("date: (.*?);").Match(cLines[i + 2]);
oCommit.dDate = GlobalFunctions.ParseDateTime(oMatch.Groups[1].ToString());
oCommit.sAuthor = new Regex("author: (.*?);").Match(cLines[i + 2]).Groups[1].ToString();
oRevision.sState = new Regex("state: (.*?);").Match(cLines[i + 2]).Groups[1].ToString();
oRevision.sLinesChanged = new Regex("lines: (.*)").Match(cLines[i + 2]).Groups[1].ToString();
int iDescriptionStart = 3;
if (cLines[i + 3].Contains("branches:"))
{
iDescriptionStart = 4;
}
oCommit.sDescription = cLines[i + iDescriptionStart];
//Collect additional description lines
for (int j = i + iDescriptionStart + 1; j < cLines.Count; j++)
{
if (cLines[j] == "----------------------------" ||
cLines[j] == "=============================================================================")
{
i = j - 1;
break;
}
else
{
oCommit.sDescription += Environment.NewLine + cLines[j];
}
}
oCommit.sDescription = oCommit.sDescription.Trim();
//Tags
foreach (KeyValuePair <string, string> oRawTag in cRawTags)
{
if (oRawTag.Value == oRevision.sRevision)
{
bool bFound = false;
foreach (Tag oTag in cTags)
{
if (oTag.sLabel == oRawTag.Key)
{
bFound = true;
oRevision.cTags.Add(oTag);
break;
}
}
if (!bFound)
{
Tag oNewTag = new Tag {
iID = 0, sLabel = oRawTag.Key
};
oRevision.cTags.Add(oNewTag);
cTags.Add(oNewTag);
}
}
}
//HASH
using (SHA1Managed sha1 = new SHA1Managed())
{
byte[] aHash = sha1.ComputeHash(Encoding.UTF8.GetBytes(oCommit.sAuthor + oCommit.dDate.ToString() + oCommit.sDescription));
StringBuilder oSB = new StringBuilder(aHash.Length * 2);
foreach (byte b in aHash)
{
//X2 = Upper Case
oSB.Append(b.ToString("X2"));
}
oCommit.sHASH = oSB.ToString();
}
oRevision.oFile = oFile;
//Check if this file was re-added to the repository.
if (cCommits.Count > 0 && !oRevision.bReAdded)
{
if (cCommits[cCommits.Count - 1].cRevisions[0].sState != "dead" && oRevision.sState == "dead")
{
cCommits[cCommits.Count - 1].cRevisions[0].bReAdded = true;
}
}
//Finally
oCommit.cRevisions.Add(oRevision);
cCommits.Add(oCommit);
//Check if there is another commit coming or not.
if (cLines.Count - 1 - i < 5)
{
break;
}
}
//Set CVS Path for File Object
if (oFile.iID == 0 && !string.IsNullOrWhiteSpace(sRCS))
{
if (cCommits[0].cRevisions[0].sState == "dead")
{
sRCS = sRCS.Replace("/Attic", "");
}
string[] aSplitTempRCS = sRCS.Split('/');
List <string> cSplitRCS = new List <string>();
foreach (string sPart in aSplitTempRCS)
{
if (!string.IsNullOrWhiteSpace(sPart))
{
string[] aSplitTemp2RCS = sPart.Split('\\');
foreach (string sPart2 in aSplitTemp2RCS)
{
if (!string.IsNullOrWhiteSpace(sPart2))
{
cSplitRCS.Add(sPart2);
}
}
}
}
List <string> cSplitFile = new List <string>(oFile.sPath.Split('\\'));
int iCount = 0;
if (cSplitRCS.Count < cSplitFile.Count)
{
iCount = cSplitRCS.Count;
}
else
{
iCount = cSplitFile.Count;
}
int iRCSIndex = cSplitRCS.Count - 1;
int iFileIndex = cSplitFile.Count - 1;
List <string> cMatches = new List <string>();
for (int g = iCount - 1; g >= 0; g--)
{
if (cSplitRCS[iRCSIndex] == cSplitFile[iFileIndex--])
{
cMatches.Add(cSplitRCS[iRCSIndex--]);
}
else
{
break;
}
}
for (int g = cMatches.Count - 1; g >= 0; g--)
{
oFile.sCVSPath += cMatches[g] + ((g != 0) ? "/" : "");
}
}
return(cCommits);
}
private static Revision GetDiffPrevious(Revision oRevision, int iWhitespace)
{
int iPrevRevision = int.Parse(oRevision.sRevision.Substring(oRevision.sRevision.LastIndexOf('.') + 1)) - 1;
string sPrevRevision = oRevision.sRevision.Substring(0, oRevision.sRevision.LastIndexOf('.') + 1) + iPrevRevision.ToString();
List <string> cWhitespace = CVSCalls.RunCommand(oRevision.oFile.sPath, $"cvs co -r {oRevision.sRevision} -p \"{oRevision.oFile.sCVSPath}/{oRevision.oFile.sName}\"");
List <string> cLines = CVSCalls.RunCommand(oRevision.oFile.sPath, $"cvs diff -r {oRevision.sRevision} -r {sPrevRevision} \"{oRevision.oFile.sName}\"");
DiffBlock oDiffBlock = new DiffBlock();
string sBlockKind = "";
for (int i = 6; i < cLines.Count; i++)
{
DiffBlock.LineChange oChange = new DiffBlock.LineChange();
if (string.IsNullOrEmpty(cLines[i]))
{
//Do nothing.
}
else if (cLines[i].Substring(0, 1) == "<")
{
oChange.sAction = "+";
oChange.sLine = cLines[i].Substring(2, cLines[i].Length - 2);
oDiffBlock.cLines.Add(oChange);
}
else if (cLines[i].Substring(0, 1) == ">")
{
switch (sBlockKind)
{
case "a":
oChange.sAction = "-";
break;
case "d":
oChange.sAction = "+";
break;
default:
oChange.sAction = "-";
break;
}
oChange.sLine = cLines[i].Substring(2, cLines[i].Length - 2);
oDiffBlock.cLines.Add(oChange);
}
else if (cLines[i] == "---" || cLines[i].Substring(0, 1) == "\\")
{
//Do Nothing
}
else
{
Match oMatch = new Regex("([0-9]+),{0,1}([0-9]*)([adc]){1}").Match(cLines[i]);
if (oDiffBlock.cLines.Count != 0)
{
oDiffBlock.sBlockKind = sBlockKind;
oRevision.cDiffBlocks.Add(oDiffBlock);
}
oDiffBlock = new DiffBlock();
oDiffBlock.iStartLine = int.Parse(oMatch.Groups[1].Value);
oDiffBlock.iEndLine = int.Parse((!string.IsNullOrWhiteSpace(oMatch.Groups[2].Value))? oMatch.Groups[2].Value : oMatch.Groups[1].Value);
sBlockKind = oMatch.Groups[3].Value;
}
}
oDiffBlock.sBlockKind = sBlockKind;
oRevision.cDiffBlocks.Add(oDiffBlock);
//Combine blocks that are close to each other and add whitespace as needed.
bool bMergeRequired = false;
DiffBlock oMergeInto = oRevision.cDiffBlocks[oRevision.cDiffBlocks.Count - 1];
for (int i = oRevision.cDiffBlocks.Count - 1; i >= 0; i--)
{
if (bMergeRequired)
{
foreach (DiffBlock.LineChange oLineChange in oRevision.cDiffBlocks[i].cLines)
{
oMergeInto.cLines.Insert(0, oLineChange);
}
oMergeInto.iStartLine = oRevision.cDiffBlocks[i].iStartLine;
oMergeInto.sBlockKind = oRevision.cDiffBlocks[i].sBlockKind;
oRevision.cDiffBlocks.RemoveAt(i);
}
else
{
//No merge means that the block needs bottom whitespace.
oRevision.cDiffBlocks[i] = AddWhitespace(oRevision.cDiffBlocks[i], cWhitespace, iWhitespace, (oRevision.cDiffBlocks[i].sBlockKind == "a") ? true : false, 2);
}
if (i - 1 >= 0)
{
int iDiff = oRevision.cDiffBlocks[i].iStartLine - oRevision.cDiffBlocks[i - 1].iEndLine - 1;
if (iDiff < iWhitespace * 2)
{
bMergeRequired = true;
oMergeInto = oRevision.cDiffBlocks[i];
oMergeInto = AddWhitespace(oMergeInto, cWhitespace, iDiff, (oMergeInto.sBlockKind == "a") ? true : false, 1);
}
else
{
//it seems that the next block is far enough to treat them separately. Add max top whitespace.
bMergeRequired = false;
oRevision.cDiffBlocks[i] = AddWhitespace(oRevision.cDiffBlocks[i], cWhitespace, iWhitespace, (oRevision.cDiffBlocks[i].sBlockKind == "a") ? true : false, 1);
}
}
else
{
//This is the top-most block in the list, so we need to add max top whitespace.
oRevision.cDiffBlocks[i] = AddWhitespace(oRevision.cDiffBlocks[i], cWhitespace, iWhitespace, (oRevision.cDiffBlocks[i].sBlockKind == "a") ? true : false, 1);
break;
}
}
return(oRevision);
}
