public HgChangesetDetails GetChangesetDetails(HgNodeID hgNodeID, int context = 3)
{
var c = Changelog[hgNodeID];
if(c == null) return null;
var m = Manifest[c.ManifestNodeID];
if(m == null) return new HgChangesetDetails(c, new List<HgChangesetFileDetails>());
IList<HgChangesetFileDetails> files;
var diffGenerator = new HgDiffGenerator();
//
// For a very first changeset we treat all files as Added
if(c.Metadata.FirstParentRevisionNodeID == HgNodeID.Null)
{
files =
m.Files.
Select(f => new {
f = f.Path,
file = GetFile(m[f.Path.FullPath]),
}).
Select(f => new HgChangesetFileDetails(f.f, HgChangesetFileOperation.Added,
f.file.IsBinary ?
null :
GetHgRollupFileDiffInfo(f.f, f.file.IsBinary, diffGenerator.UnifiedDiff("", Encoder.DecodeAsUtf8(f.file.Data), context, false, true, true)))).
ToList();
} // if
else
{
Func<HgManifestFileEntry, string> fileName = mfe => mfe.Path.FullPath.TrimStart('/');
HgManifestEntry mp1 = null;
ISet<string> cf = null, f_ = null, fp1 = null;
cf = new HashSet<string>(c.Files.Select(f => f.TrimStart('/')).ToList());
f_ = new HashSet<string>(m.Files.Select(fileName));
var p1 = Changelog[c.Metadata.FirstParentRevisionNodeID];
mp1 = Manifest[p1.ManifestNodeID];
fp1 = new HashSet<string>(mp1.Files.Select(fileName));
var addedFiles = f_.Except(fp1).Intersect(cf).ToList();
var removedFiles = fp1.Except(f_).Intersect(cf).ToList();
var modifiedFiles = f_.Intersect(fp1).Intersect(cf).Where(f => m[f].FilelogNodeID != mp1[f].FilelogNodeID ||
!GetFile(m[f]).Data.SequenceEqual(GetFile(mp1[f]).Data)).ToList();
Func<HgFile, HgFile, HgUnifiedDiff> diff = (f /* from */, t /* to */) => {
if(f != null && f.IsBinary || t != null && t.IsBinary) return null;
var a = f == null ? "" : Encoder.DecodeAsUtf8(f.Data);
var b = t == null ? "" : Encoder.DecodeAsUtf8(t.Data);
return diffGenerator.UnifiedDiff(a, b, context, false, true, true);
};
var removed =
removedFiles.
Select(f => new {
f,
file = GetFile(mp1[f]),
}).
Where(f => f.file != null).
Select(f => Removed(f.f,
GetHgRollupFileDiffInfo(
new HgPath(f.f),
f.file.IsBinary,
diff(f.file, null)))).
Where(f => f.Diff != null && (f.Diff.Additions > 0 || f.Diff.Removals > 0));
var added =
addedFiles.
Select(f => new {
f,
file = GetFile(m[f]),
}).
Where(f => f.file != null).
Select(f => Added(f.f,
GetHgRollupFileDiffInfo(
new HgPath(f.f),
f.file.IsBinary,
diff(null, f.file)))).
Where(f => f.Diff != null && (f.Diff.Additions > 0 || f.Diff.Removals > 0));
var modified =
modifiedFiles.
Select(f => new {
f,
file = GetFile(m[f]),
}).
Where(f => f.file != null).
Select(f => Modified(f.f,
GetHgRollupFileDiffInfo(
new HgPath(f.f),
f.file.IsBinary,
diff(GetFile(mp1[f.f]), f.file)))).
Where(f => f.Diff == null || f.Diff.Additions > 0 || f.Diff.Removals > 0);
//
// Prepare enough room to avoid reallocations later on
files = new List<HgChangesetFileDetails>(f_.Count * 2);
files.AddRange(added);
files.AddRange(modified);
files.AddRange(removed);
} // else
var changesetDetails = new HgChangesetDetails(c, files);
return changesetDetails;
}
public HgCompareInfo PerformComparison(HgNodeID baseNodeID, HgNodeID headNodeID, bool includeFileDiffs = false)
{
var hgRevsetManager = new HgRevsetManager();
var @base = Changelog[baseNodeID];
var head = Changelog[headNodeID];
var baseAncestors = hgRevsetManager.GetAncestors(this, new HgRevset(@base.Metadata));
var headAncestors = hgRevsetManager.GetAncestors(this, new HgRevset(head.Metadata));
var changesets = GetChangesets(headAncestors - baseAncestors);
if(changesets.Count == 0)
return new HgCompareInfo(@base, head, new List<HgChangeset>(), new List<HgRollupFileDiffInfo>());
var files = changesets.SelectMany(c => c.Files).Distinct().OrderBy(f => f).ToList();
var startManifest = Manifest[@base.ManifestNodeID];
var endManifest = Manifest[head.ManifestNodeID];
//
// Only pick files that were indeed changed between two bounding changesets
var diffs = new List<HgRollupFileDiffInfo>();
if(includeFileDiffs)
{
var changedFiles = files.Where(f => startManifest[f] == null && endManifest[f] != null || startManifest[f] != null && endManifest[f] == null || (startManifest[f] != null && endManifest[f] != null && startManifest[f].FilelogNodeID != endManifest[f].FilelogNodeID)).ToList();
var diffGenerator = new HgDiffGenerator();
diffs = changedFiles.
Select(f => new {
file = f,
start = startManifest[f],
end = endManifest[f]
}).
Select(f => new {
f.file,
start = f.start == null ? null : GetFile(f.start),
end = f.end == null ? null : GetFile(f.end)
}).
Select(f => new {
f.file,
isBinary = f.start != null && f.start.IsBinary || f.end != null && f.end.IsBinary,
f.start,
f.end
}).
Select(f => new {
f.file,
f.isBinary,
start = f.start == null || f.isBinary ? "" : Encoder.DecodeAsUtf8(f.start.Data),
end = f.end == null || f.isBinary ? "" : Encoder.DecodeAsUtf8(f.end.Data)
}).
Select(f => new {
f.file,
f.isBinary,
diff = f.isBinary ? null : diffGenerator.UnifiedDiff(f.start, f.end, 3)
}).
//
// Do not include files that were not in fact changed between revision
Where(f => f.diff == null || f.diff.Hunks.Sum(h => h.Lines.Count(l => l.Added || l.Removed )) > 0).
Select(f => GetHgRollupFileDiffInfo(new HgPath(f.file), f.isBinary, f.diff)).
ToList();
}
return new HgCompareInfo(@base, head, changesets, diffs);
}
public HgAnnotation GetAnnotation(HgPath path, HgNodeID? startFilelogNodeID = null)
{
var fileHistory = repository.GetFileHistory(path, startFilelogNodeID).OrderBy(c => c.Metadata.Revision).ToList();
var prev = "";
var diffGenerator = new HgDiffGenerator();
var annotationLines = new LinkedList<HgAnnotationLine>();
var manifestEntries =
repository.
GetManifestEntries(new HgRevset(fileHistory.Select(f => repository.Manifest.Revlog.GetEntry(f.ManifestNodeID)))).
ToDictionary(me => me.Metadata.NodeID, me => me);
foreach(var changeset in fileHistory)
{
var manifest = manifestEntries[changeset.ManifestNodeID];
var current =
Encoding.UTF8.GetString(
repository.GetFile(manifest.GetFile(path)).Data);
var diff = diffGenerator.Diff(prev, current);
LinkedListNode<HgAnnotationLine> annotationLine = null; // before first
for(var i = 0; i < diff.Lines.Count; ++i)
{
if(diff.Lines[i].Unchanged)
{
annotationLine = annotationLine == null ?
annotationLines.First :
annotationLine.Next;
continue;
} // if
if(diff.Lines[i].Removed)
{
if(annotationLine == null)
{
annotationLines.RemoveFirst();
} // if
else
{
if(annotationLine.Next != null)
annotationLines.Remove(annotationLine.Next);
} // else
}
else
{
if(annotationLine == null)
{
annotationLines.AddFirst(new HgAnnotationLine(changeset, diff.Lines[i].Content));
annotationLine = annotationLines.First;
}
else
{
annotationLines.AddAfter(annotationLine, new HgAnnotationLine(changeset, diff.Lines[i].Content));
annotationLine = annotationLine.Next;
}
}
} // for
prev = current;
} // foreach
/* var lines = prev.Split('\n');
Debug.Assert(
lines.Length == annotationLines.Count,
string.Format("Annotation line count mismatch: {0} in annotation vs {1} in file", annotationLines.Count, lines.Length));*/
return new HgAnnotation(path, annotationLines);
}
