private IChangeInfo Analyze(Change change)
{
if (this.IsLibFile(change.Item))
return null;
IChangeInfo info = null;
string url = change.Item.ServerItem;
Lazy<byte[]> fileContent = new Lazy<byte[]>(() => this.Download(change.Item));
if (BinaryHelper.IsProbablyBinary(url, fileContent))
return null;
if (change.ChangeType.HasFlag(ChangeType.Add)
|| change.ChangeType.HasFlag(ChangeType.Undelete))
{
info = new ChangeInfo
{
RemovedLines = 0,
AddedLines = this.CountLines(fileContent.Value),
};
}
else if (change.ChangeType.HasFlag(ChangeType.Delete)
&& !change.ChangeType.HasFlag(ChangeType.SourceRename)
&& !change.ChangeType.HasFlag(ChangeType.Rename))
{
info = new ChangeInfo
{
AddedLines = 0,
RemovedLines = this.CountLines(fileContent.Value),
};
}
else if (change.ChangeType.HasFlag(ChangeType.Edit)
|| change.ChangeType.HasFlag(ChangeType.Rollback))
{
var others = this.tfs.GetCheckins(url);
Changeset previous = null;
if (others.Any())
{
previous = others
.SkipWhile(x => x.ChangesetId != change.Item.ChangesetId)
.Skip(1)
.FirstOrDefault();
}
if (previous == null)
{
info = new ChangeInfo
{
RemovedLines = 0,
AddedLines = this.CountLines(fileContent.Value),
};
}
else
{
Change previousFile = change.ChangeType.HasFlag(ChangeType.Rename) && previous.Changes.Count() == 1
? previous.Changes.Single()
: previous.Changes.FirstOrDefault(s => s.Item.ServerItem == url);
if (previousFile == null)
return null;
info = this.DiffFiles(previousFile.Item, change.Item);
}
}
var local = info as ChangeInfo;
if (local != null)
{
local.FileCount = 1;
local.Name = change.Item.ServerItem;
}
return info;
}
public IChangeInfo GetDiff(Changeset changeset, bool force)
{
string key = changeset.ChangesetId.ToString();
if (!force)
{
IChangeInfo stored = this.changesCache.GetById(key);
if (stored != null)
return stored;
}
var infos = new List<IChangeInfo>();
IEnumerable<Change> changes;
string[] excludedUrls = this.HasBranchDeletes(changeset);
if (excludedUrls != null)
{
// Exclude deletions of complete branches.
changes = changeset.Changes.Where(c => excludedUrls.All(e => !c.Item.ServerItem.StartsWith(e))).ToList();
foreach (var change in changeset.Changes.Except(changes))
{
string changeKey = changeset.ChangesetId.ToString() + change.Item.ItemId;
this.changesCache.Remove(changeKey);
}
}
else
{
changes = changeset.Changes;
}
foreach (Change change in changes)
{
IChangeInfo info = this.GetDiffCore(changeset, change, force);
if (info != null)
{
infos.Add(info);
}
}
var result = new ChangeInfo
{
Id = changeset.ChangesetId.ToString(),
Author = changeset.Committer,
Name = changeset.ChangesetId.ToString(),
FileCount = infos.Count,
AddedLines = infos.Sum(i => i.AddedLines),
RemovedLines = infos.Sum(i => i.RemovedLines),
};
this.changesCache.Save(result);
return result;
}